Page 1 Operating Manual OPTIMOD-FM 8500 Digital Audio Processor Version 3.0 Software/Hardware...
Page 2 European Parliament, this product must not be discarded into the municipal waste stream in any of the Member States. This product may be sent back to your Orban dealer at end of life where it will be reused or recycled at no cost to you.
Page 3: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS All the safety and operating instructions should be read before the appliance is operated. Retain Instructions: The safety and operation instructions should be retained for future reference. Heed Warnings: All warnings on the appliance and in the operating instructions should be adhered to. Follow Instructions: All operation and user instructions should be followed.
Page 4 Safety Instructions (German) Gerät nur an der am Leistungsschild vermerkten Spannung und Stromart betreiben. Sicherungen nur durch solche, gleicher Stromstärke und gleichen Abschaltverhaltens ersetzen. Sicherungen nie überbrücken. Jedwede Beschädigung des Netzkabels vermeiden. Netzkabel nicht knicken oder quetschen. Beim Abziehen des Netzkabels den Stecker und nicht das Kabel enfassen.
Page 5 (2) Check the other sections of the Manual (consult the Table of Contents and Index) to see if there might be some sug- gestions regarding your problem. (3) After reading the section on Factory Assistance, you may call Orban Customer Service for advice during normal Cali- fornia business hours. The number is (1) 510 / 351-3500.
Page 6 Orban and Optimod are registered trademarks. All trademarks are property of their respective companies. This manual is part number 96123.300.00. Published May 2011. © Copyright Orban 8350 East Evans Suite C4, Scottsdale, AZ 85260 USA Phone: +1 480.403.8314; Fax: +1 480.403.8305; E-Mail: custserv@orban.com; Site: www.orban.com...
Page 7 Operating Manual OPTIMOD-FM 8500 Digital Audio Processor Version 3.0 Software/Hardware...
Page 8: Table Of Contents
Digital Links ........................1-15 Composite Baseband Microwave STLs (Analog and Digital)........1-16 Dual Microwave STLs...................... 1-16 Analog Landline (PTT / Post Office Line)............... 1-17 Using the Orban 8100AST (or 8100A/ST) External AGC with the 8500 .....1-18 STL and Exciter Overshoot ..................1-18 ..............1-18 SING...
Page 9 8500 F .......................2-12 RONT ANEL AGC I ) ...............2-14 XTERNAL NSTALLATION OPTIONAL If you are using an Orban 8200ST external AGC:..........2-14 Figure 2-4: 8200ST Jumper Settings (*Factory Configuration) ........2-15 .........................2-17 UICK ETUP I/O S ..................2-24 NALOG AND IGITAL ETUP .................2-36...
Page 10 8500 PC R ............2-60 NSTALLING EMOTE ONTROL OFTWARE Installing the Necessary Windows Services............2-60 Check Hardware Requirements................2-60 Running the Orban Installer Program ..............2-61 Setting Up Ethernet, LAN, and VPN Connections ..........2-62 Conclusion......................2-62 ............2-63 YNCHRONIZING PTIMOD TO A ETWORK ERVER Table 2-1: NIST-referenced timeservers................. 2-63 Updating your 8500’s Software................2-66...
Page 11 Table 3-5: Clipper Controls ..................... 3-37 Figure 3-1: 0-100 kHz Baseband Spectrum (Loud-Hot preset)........3-40 Figure 3-2: 19 kHz Pilot Notch Filter Spectrum (Loud-Hot preset; detail)....3-40 Advanced Clipper Controls ...................3-41 ...................3-43 TRUCTURE The Protection Presets...................3-44 Setting Up the Two-Band Structure for Classical Music........3-44 Customizing the Settings ..................3-45 The Two-Band Structure’s Full Setup Controls ............3-45 Table 3-6: Two-Band Controls ..................
Page 12 About Aliases created by Optimod 8500 PC Remote Software ......3-84 Multiple Installations of Optimod 8500 PC Remote ...........3-85 Section Maintenance ............................4-1 ....................4-1 OUTINE AINTENANCE ...............4-2 UBASSEMBLY EMOVAL AND EPLACEMENT ..................4-7 IELD UDIT OF ERFORMANCE Table 4-1: Decoder Chart for Power Supervisor ............4-10 Table 4-2: Layout Diagram of J7, with expected voltages on each pin.......
Page 13 .......................5-14 ECHNICAL UPPORT ......................5-15 ACTORY ERVICE ....................5-15 HIPPING NSTRUCTIONS Section Technical Data ............................6-1 ........................6-1 PECIFICATIONS Performance......................6-1 Installation .......................6-2 ......................6-6 IRCUIT ESCRIPTION Overview ........................6-6 Control Circuits ......................6-7 User Control Interface and LCD Display Circuits ...........6-7 Input Circuits......................6-8 Output Circuits.......................6-10 DSP Circuit......................6-12 Power Supply ......................6-13 ......................6-13 BBREVIATIONS...
Page 14 Function Description Drawing Page General Purpose Bus Schematic 2 of 5 6-43 Memory Schematic 3 of 5 6-44 Miscellaneous Functions Schematic 4 of 5 6-45 Power and Ground Distribution Schematic 5 of 5 6-46 RS-232 Board Supports Serial Port Parts Locator 6-47 Drawing Schematic 1 of 1...
Page 15 Function Description Drawing Page LCD Carrier Parts Locator 6-77 Front-Panel Boards Drawing LCD Carrier Schematic 1 of 3 6-78 Headphone and Encoder Board Parts Locator 6-79 Drawings Headphone Board Schematic 2 of 3 6-80 Encoder Board Schematic 3 of 3 6-81 Front-Panel Parts Locator...
Page 16: Index
Index AGC Release Master 3- · 32 Analog output 2- · 7 19 K Ref control 2- · 11 Analog auto-fallback 2- · 35 Analog baseband outputs 1- · 9 analog fallback 2- · 29 Analog I/O 1- · 8 analog input 2B Drive 3- ·...
Page 17 balanced Cable 2- · 6 CD mastering output transformer 2- · 7 Balanced and processing 3- · 5 chassis inputs 2- · 7 Band Mix ground 2- · 11 Chassis Multiband 3- · 57 Band mix controls 3- · 58 getting inside 4 ·...
Page 18 I/O setup 2- · 32 Crossover Level adjustment range 2- · 9 2-Band 3- · 49 Meter 2- · 14 AGC 3- · 36 Setting output impedance 2- · 9 Band 1 / Band 2 3- · 60 Specifications 6- · 4 Termination 2- ·...
Page 19 Resetting to 2- · 41 Dither control Restoring via Terminal Program 2- · 48 HD 3- · 68 Factory preset diversity delay Selecting 2- · 22 om/off from API 2- · 51 Factory presets diversity delay 3- · 66 Table of 3- · 19 DJ Bass control 3- ·...
Page 20 Multiband 3- · 54 Headphones Gateway low-delay monitoring 1- · 24 Setting via terminal program 2- · 50 low-delay monitoring 2- · 33 Gateway 2- · 57, 62, 78 Headphones 1- · 22 Ground lift switch 2- · 3, 5 HF Clipping 3- ·...
Page 21 ITU-412 3- · 71 Lockout ITU-R 412 3- · 10 Front panel 2- · 40 Lookahead ITU-R 412 requirements 2- · 23 Multiband Control 3- · 61 Look-ahead Compressor/limiter 3- · 8 Lookahead 3- · 49 J.17 look-ahead limiter 3- · 11, 64 and NICAM 1- ·...
Page 22 Troubleshooting 5- · 3 Programming 2- · 37 Null modem cable Communicating through 2- · 69 Orban installer program 2- · 61 Null modem cable 2- · 61 PC board locator diagram 6- · 35 PC card port 2- · 6 PC control security 1- ·...
Page 23 Impact 3- · 22 pilot reference 2- · 35 Instrumental 3- · 22 pilot reference 6- · 4 Jazz 3- · 22 pilot reference control 2- · 11 Loud 3- · 22 pilot tone News-Talk 3- · 23 reference output 1- · 9 Rock 3- ·...
Page 24 Bypass 1- · 24 Security 2- · 37 Connecting 2- · 3 serial 1 connector 2- · 5 Remote control 2- · 6 serial 2 connector 2- · 5 Remote control interface Serial Communications Connecting 2- · 3 Setting up 2- · 69 Remote control interface 1- ·...
Page 25 In/Out 3- · 31 Band-5 Clip 3- · 60 Ratio Limit 3- · 31 Bass Delta 3- · 36 Style 3- · 31 Master Delta 3- · 36 Stereo/Mono Multiband Compression 3- · 58 Multiband Speech 3- · 49, 61 HD output 3- ·...
Page 26 Adding direct serial connection 2- · 70, 87 Direct Connect 5- · 10 Direct serial connection 2- · 69 Warranty 1- · 26 modem connect 5- · 11 Warranty 6- · 6 Modem connection 2- · 80 Whistle on-air Windows XP Troubleshooting 5- ·...
Page 27: Section 1 Introduction
Because OPTIMOD-FM incorporates several audio processing innovations exclusive to Orban products, you should not assume that it can be operated in the same way as less sophisticated processors. If you do, you may get disappointing results.
Page 28: User-Friendly Interface
If you wish to place level protection prior to your studio / transmitter link (STL), use the Orban Optimod 6300 or Optimod-PC 1101. These processors can be adjusted so that they substitute for the AGC circuitry in OPTIMOD-FM, which is then defeated.
Page 29: Absolute Control Of Peak Modulation
Flexible Configuration • The OPTIMOD-FM 8500 is supplied with analog and AES3 digital inputs and outputs. The digital input and the two digital outputs are equipped with sam- ple-rate converters and can operate at 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz sample rates.
Page 30 Both the 8500 and 8500FM offer this feature, making it convenient to use the 8500FM in dual-processor HD installations where the digital channel receives in- dependent processing from a processor like Orban’s Optimod-DAB or Optimod- PC. Each output (Analog, Digital 1, Digital 2, Composite) can be independently configured to emit the delayed or undelayed signal.
Page 31: Adaptability Through Multiple Audio Processing Structures
The 8500 can be remote-controlled by 5-12V pulses applied to eight pro- grammable, optically isolated GPI (general-purpose interface) ports. • The 8500 is equipped with a serial port to interface to an IBM-compatible com- puter running Orban’s PC Remote software. The connection can be either direct or through an external modem.
Page 32: Upgradeable
FM 8600 processor. The appropriate upgrade kit can be ordered from your Orban dealer. Its price depends on which version of 8500 you are starting with (8500 or 8500FM) and the version of 8600 (8600 or 8600FM) to which you are upgrading.
Page 33: Presets In Optimod-Fm
OPTIMOD-FM DIGITAL INTRODUCTION Presets in OPTIMOD-FM There are two distinct kinds of presets in the 8500: Factory Presets and User Presets. Factory Presets The Factory Presets are our “factory recommended settings” for various program formats or types. The description indicates the processing structure and the type of processing.
Page 34: Digital Aes3 Left/Right Input/Outputs
INTRODUCTION ORBAN MODEL 8500 • Two Digital AES3 outputs, both of which can be switched independently to carry the following signals: FM analog processed without diversity delay, FM analog processed with diversity delay, digital radio processed, or low delay monitor.
Page 35: Stereo Analog Baseband Composite Output
OPTIMOD-FM DIGITAL INTRODUCTION The left and right analog outputs are on XLR-type male connectors on the rear panel. Output impedance is 50Ω; balanced and floating. They can drive 600Ω or higher impedances, balanced or unbalanced. The peak output level is adjustable from –6 dBu to +24 dBu.
Page 36: Remote Control Interface
1-10 INTRODUCTION ORBAN MODEL 8500 Remote Control Interface The Remote Control Interface is a set of eight optically isolated inputs on a DB-25 connector that can be activated by 5-12V DC. They can control various functions of the 8500: •...
Page 37: Serial Port (Serial 1)
1-11 OPTIMOD-FM DIGITAL INTRODUCTION panel controls. The program displays all of the 8500’s LCD meters on the computer screen to aid remote adjustment. RS-232 Serial Port (Serial 1) 8500 PC Remote can communicate via modem or direct connection between the computer and the 8500 through their RS-232 serial ports.
Page 38: Best Location For Optimod-Fm
1-12 INTRODUCTION ORBAN MODEL 8500 2) The low-frequency −3 dB point of the system must be placed at 0.15Hz or lower (this is not a misprint!). This is necessary to ensure less than 1% overshoot in a 50Hz square wave and essentially constant group delay to 30Hz.
Page 39: If The Transmitter Is Accessible
You will achieve a louder sound on the air, with bet- ter control of peak modulation, than if you use most external stereo encoders. An exception is Orban’s 8218 stereo encoder, which does not add overshoot, and, in fact, contains its own overshoot limiter. However, because it accepts audio in left/right form, the 8218 will not let you exploit the 8500’s composite limiter.
Page 40: Studio-Transmitter Link
1-14 INTRODUCTION ORBAN MODEL 8500 input low-pass filters in the encoder so that they cannot introduce spurious peaks. Because of their special design, OPTIMOD-FM’s pre-emphasis network and low-pass filters perform the same functions while retaining tight peak control. Connect the composite output of the 8500 to the baseband input of the exciter through less than 100 feet (30 meters) of coaxial cable.
Page 41: Digital Links
1-15 OPTIMOD-FM DIGITAL INTRODUCTION Digital Links Digital links may pass audio as straightforward PCM encoding or they may apply lossy data reduction processing to the signal to reduce the number of bits per sec- ond required for transmission through the digital link. Lossy data rate reduction will almost invariably distort peak levels and such links must therefore be carefully quali- fied before you use them to carry the peak-controlled output of the 8500 to the transmitter.
Page 42: Composite Baseband Microwave Stls (Analog And Digital)
STL is good enough to pass unprocessed audio. The signal-to-noise ratio of the STL can be used optimally if an Orban Optimod-PC 1101, Optimod 6300, 8200ST Compressor / Limiter / HF Limiter / Clipper or an 4000 Transmission Limiter protects the link from overload.
Page 43: Analog Landline (Ptt / Post Office Line)
Some consultants presently offer modifications to minimize or eliminate this prob- lem. If your exciter or STL has this problem, you may contact Orban Customer Service for the latest information on such services. Analog Landline (PTT / Post Office Line) Analog landline quality is extremely variable, ranging from excellent to poor.
Page 44: Using The Orban 8100Ast (Or 8100A/St) External Agc With The 8500
If you have an OPTIMOD-FM 8100A1 (or 8100A or 8100A/1) installation that uses an Orban 8100AST (or 8100A/ST) external AGC at the studio to protect an STL (with the main 8100A, 8100A1 or 8100A/1 chassis at the transmitter), you may wish to con- tinue to use the external AGC to protect the STL when you install the 8500 at the transmitter.
Page 45: About Transmission Levels And Metering
1-19 OPTIMOD-FM DIGITAL INTRODUCTION At least one other mechanism can cause the noise to become audible at the radio. OPTIMOD-FM’s multiband limiter performs an “automatic equalization” function that can radically change the frequency balance of the program. This can cause noise that would otherwise have been masked to become unmasked because the psychoacoustic masking conditions under which the masking thresholds were origi- nally computed have changed.
Page 46: Studio Line-Up Levels And Headroom
1-20 INTRODUCTION ORBAN MODEL 8500 Studio Line-up Levels and Headroom The studio engineer is primarily concerned with calibrating the equipment to pro- vide the required input level for proper operation of each device so that all devices operate with the same input and output levels. This facilitates patching devices in and out without recalibration.
Page 47: Line-Up Facilities
The meter indication is not affected by the setting of the output level control. Composite Output Level The Orban 8500 Audio Processor controls instantaneous, absolute peak levels to a tolerance of approximately ±0.1 dB. Composite modulation is indicated in percent- age modulation, absolute instantaneous peak indicating.
Page 48: Built-In Calibrated Bypass Test Mode
1-22 INTRODUCTION ORBAN MODEL 8500 The pilot tone stereo system has an interleaving property, which means that the ste- reo composite modulation is approximately equal to the higher of the left or right channels. Because the pilot tone is phase-synchronous with the stereo subcarrier, the composite modulation will actually increase about 2.7% when the...
Page 49 Ultra-low latency processing uses a separate, parallel processing structure and is invoked by recalling any “UL” preset. This structure operates simultaneously with other code, so, unlike the similar structure in Orban’s Optimod 8300, it does not require a code re-load and does not cause a gap in programming.
Page 50: Low-Delay Monitoring
1-24 INTRODUCTION ORBAN MODEL 8500 Low-Delay Monitoring The 8500’s analog outputs can be switched to provide a low-delay monitoring feed (see step 13 on page 2-33). This feed has no peak limiting and thus cannot drive a transmitter, but its 3 to 8 ms delay is likely to be more comfortable to talent than the 18 ms delay of the full processing chain because of less bone conduction comb filtering.
Page 51: Pc Control And Security Passcode
1-25 OPTIMOD-FM DIGITAL INTRODUCTION A) Connect two outputs from your station remote control system to the R EMOTE connector on the rear panel of the 8500. See Figure 2-2 on page 2- NTERFACE B) L to S on the pop-up Menu display, then press E but- OCATE YSTEM...
Page 52: Warranty, User Feedback
However, the limitation of any right or remedy shall not be effective where such is prohibited or restricted by law. Simply take or ship your Orban products prepaid to our service department. Be sure to include a copy of your sales slip as proof of purchase date. We will not repair transit damage under the no-charge terms of this warranty.
Page 53: Extended Warranty
Warranty (yielding a total Warranty period of five years) by remitting to Orban ten percent of the gross purchase price of your Orban product. This offer applies only to new Orban products purchased from an authorized Orban Dealer.
Page 55: Section 2 Installation
C) Complete the Registration Card and return it to Orban. (please)
Page 56 INSTALLATION ORBAN MODEL 8500 The Registration Card enables us to inform you of new applications, per- formance improvements, software updates, and service aids that may be developed and it helps us respond promptly to claims under warranty without our having to request a copy of your bill of sale or other proof of purchase.
Page 57 G switch, you can always break a ground ROUND loop by using Orban’s CIT25 Composite Isolation Transformer. If the CIT25 is in use, the G switch will almost always be set to GROUND. ROUND 4.
Page 58: Figure 2-2: Wiring The 25-Pin Remote Interface Connector
INSTALLATION ORBAN MODEL 8500 To select the desired function, apply a 5-12V AC or DC pulse between the appropri- ate Remote Interface terminals. The (−) terminals can be connected together and then connected to power common at pin 1 to create a Remote Common. A current- limited +12VDC source is available on pin 25.
Page 59: 8500 Rear Panel
8500_Vxxx_installation.pdf (where xxx represents the version number of the software). You can access this file from the Orban / Optimod 8500 folder in your computer’s Start Menu after you have run Orban’s PC Remote installer soft- ware or version 1.0 or greater of Orban’s 8500 software update software.
Page 60: Audio Input And Output Connections
INSTALLATION ORBAN MODEL 8500 A Remote Interface Connector is provided to connect the 8500 to your existing transmitter remote control. The 8500 remote control supports user-programmable selection of up to eight optically isolated GPI inputs. The 8500 remote control ac- cepts a DB-25 connector.
Page 61: Analog Audio Input
OPTIMOD-FM DIGITAL INSTALLATION Analog Audio Input • The 8500 will operate normally with nominal input levels between –14 dBu and +8 dBu. (0 dBu = 0.775Vrms. For this application, the dBm @600Ω scale on voltme- ters can be read as if it were calibrated in dBu.) •...
Page 62: Aes3 Digital Input And Output
INSTALLATION ORBAN MODEL 8500 • Use two-conductor foil-shielded cable (Belden 8451, or equivalent). • At the 8500’s output (and at the output of other equipment in the system), do not connect the cable’s shield to the CHASSIS GROUND terminal (pin 1) on the XLR-type connector.
Page 63: Composite Output And Subcarrier Inputs
OPTIMOD-FM DIGITAL INSTALLATION Composite Output and Subcarrier Inputs There are two composite outputs. These carry the encoded stereo signal, the ste- reo pilot tone, and any subcarriers that may have been applied to the 8500’s subcar- rier inputs. Each output’s level is independently adjustable from –13.7 dBu to +10.6 dBu. The output impedance of composite output #1 and composite output #2 can be set to 0Ω...
Page 64 This also eases thermal stresses on the output amplifier in the stereo encoder and can thus extend equipment life. If the Orban CIT25 Composite Isolation Transformer is used, the exciter must present a 1kΩ or greater load to the transformer for proper trans- former operation.
Page 65: Grounding
2-11 OPTIMOD-FM DIGITAL INSTALLATION Using the P control (in the I > C ILOT EFERENCE NPUT UTPUT OMPOSITE screen), you can set the phase of the reference to 0°, 90°, 180°, or 270° with respect to the pilot tone appearing at the composite output. You can use the 19K R control in S to determine whether the 19 kHz pilot ref-...
Page 66: Circuit Ground
LIFT to break the ground loop that would other- ROUND wise occur. Alternately, you can balance and float the exciter input with the Orban CIT25 Composite Isolation Transformer—see page 2-10. • In high RF fields, the system is usually grounded through the equipment rack in which the 8500 is mounted.
Page 67 AGC processing that pre- METERS cedes the multiband compressor. Full-scale is 25 dB gain reduction. Because the AGC is a two-band unit with Orban’s patented bass coupling system, the two meters indicate the gain reduction of the AGC Master and Bass bands.
Page 68: External Agc Installation (Optional)
• If you are using an Orban 8100AST (or 8100A/ST) external AGC, refer to page 1- If you are using an Orban 8200ST external AGC: If the STL uses pre-emphasis, its input pre-emphasis filter will probably introduce overshoots that will increase peak modulation without any increase in average modulation.
Page 69: Figure 2-4: 8200St Jumper Settings (*Factory Configuration)
2-15 OPTIMOD-FM DIGITAL INSTALLATION TOP OF MAIN BOARD Clipper Jumpers Output Pre-Emphasis Jumpers FLAT PRE-EMPHASIZED CLIPPER ON CLIPPER OFF LEFT RIGHT LEFT RIGHT OUTPUT OUTPUT OUTPUT OUTPUT Line-up Level Jumpers *PEAK LEFT RIGHT LEFT RIGHT OUTPUT OUTPUT OUTPUT OUTPUT Figure 2-4: 8200ST Jumper Settings (*Factory Configuration)
Page 70 2-16 INSTALLATION ORBAN MODEL 8500 If the STL transmitter’s pre-emphasis cannot be defeated, then configure the 8200ST for flat output. In this case average modulation levels of the STL may have to be re- duced to accommodate the overshoots. 1. Configure the 8200ST’s internal jumpers.
Page 71: Quick Setup
2-17 OPTIMOD-FM DIGITAL INSTALLATION A) Set controls as follows: HF LIMITER... Set to match the pre-emphasis of the transmission system L&R Out ................do not change GATE ....................12:00 RELEASE ....................12:00 VOICE ......................OFF AGC ......................ON COUPLE ....................ON B) Feed the 8200ST either with tone at your system reference level (0VU), or with typical program material at normal levels.
Page 72 Studio Configuration screen (S > Q OCATE YSTEM ETUP UICK ETUP B) Set the External AGC mode. • Set the field to Y if you have an external AGC (such as an Orban 1100, 1101, 6300, 8200ST OPTIMOD-Studio, Orban 464A Co-Operator, or similar...
Page 73 If you are using an Orban 4000 Transmission Limiter, set field to N that the AGC function in the 8500 continues to work). The Orban 4000 is a transmission system overload protection device; it is normally operated below threshold.
Page 74 2-20 INSTALLATION ORBAN MODEL 8500 c) If the AGC gain reduction meter averages more gain reduction (lower on the meter), re-adjust the A to a higher level. NALOG EFERENCE EVEL This control has no effect on the AES3 digital input.
Page 75 2-21 OPTIMOD-FM DIGITAL INSTALLATION C) Set the D #1 P control to P -E (for pre-emphasis), F IGITAL UTPUT or P +J17. [Skip this step if you will not be using the “AES1” digital output.] (See the notes immediately above.) +J17 applies both FM pre-emphasis and J.17 pre-emphasis (in cas- cade) to the signal and is only used with STLs using J.17 pre-emphasis when their own J.17 pre-emphasis filters are bypassed.
Page 76 2-22 INSTALLATION ORBAN MODEL 8500 . 1 and M . 2 parameters. When both are active, the modulation reduction is the sum of their settings. In general, set the modulation reduction to one-half the injection of the associated subcar- rier.
Page 77 2-23 OPTIMOD-FM DIGITAL INSTALLATION A) Locate to the Station Identifier screen (System Setup > Quick Setup 9). B) To erase the default Station ID name, use L to highlight C , then OCATE LEAR press E NTER C) Enter in your Station ID name. For each keypad item, Locate to the item and press E NTER For upper case letters, first L...
Page 78: Analog And Digital I/O Setup
2-24 INSTALLATION ORBAN MODEL 8500 overshoot is the amount (in dB) by which the deviation with program material exceeds ±75 kHz deviation. If your country does not enforce ITU-R 412, the M ULTIPLEX OWER should be set to OFF. HRESHOLD Because the multiplex power controller uses the output of the 8500’s ste-...
Page 79 • Calibrate with unprocessed audio: step (B), page 2-25, or • Calibrate with a Studio Level Control System that has a built-in 100% Calibra- tion Tone, such as the Orban 6300, 8200ST-Studio Level Controller or 4000 Transmission Limiter: step (C), page 2-26, or •...
Page 80 [Skip this step if you are calibrating in another manner.] a) Turn on the Studio Level Control System’s 100% Calibration Tone. On the Orban 4000 Transmission Limiter, press both of the 4000’s front panel TONE buttons. b) Adjust the output level of the Studio Level Control System for 100% modu- lation of the STL.
Page 81 –2 dB on the meter on the screen. g) Return the 464A to the normal settings. E) Calibrate with an Orban 1100 or 1101 OPTIMOD-PC: [Skip this step if you are calibrating in another manner.] Refer to the OPTIMOD-PC manual for instructions on setting it up as an external AGC.
Page 82 If you are not using an external AGC, feed a tone through your console at normal program levels (typically 0VU if your console uses VU meters). If you are using an Orban 4000 Transmission Limiter, press its two TEST buttons. Feed a tone through your console at the level to which you normally peak program material (typically 0VU if your console uses VU meters).
Page 83 2-29 OPTIMOD-FM DIGITAL INSTALLATION d) When finished, reset E AGC to , if required (e.g., if that was its XTERNAL setting prior to setting R level). EFERENCE EVEL 6. Adjust the Analog Input’s Right Channel Balance. [Skip this step if the channels are already satisfactorily balanced.] [−3 dB to +3 dB] on right channel only, 0.1 dB steps Adjust R to achieve correct left/right channel balance.
Page 84 2-30 INSTALLATION ORBAN MODEL 8500 If you will use the analog output to drive a stereo encoder, P -E pro- vides the best performance because this stereo encoder does not have to restore the pre-emphasis. However, if you cannot defeat the pre-...
Page 85 2-31 OPTIMOD-FM DIGITAL INSTALLATION For a given AES3 output, the output sample-rate selector (“S ”) has no effect in the I and S modes unless sync is lost. Then the NPUT output reverts to internal sync at the sample rate that is preset by the sample-rate selector for that output.
Page 86 2-32 INSTALLATION ORBAN MODEL 8500 injection totals 20%, you can set the total modulation to 110% (±82.5 kHz deviation). This implies that you must set the 8500’s composite out- put level for the equivalent of 90% modulation, not counting the subcar- riers.
Page 87 2-33 OPTIMOD-FM DIGITAL INSTALLATION D) Set the P to 9% modulation. ILOT EVEL If you have to reduce the setting of the C control to ac- OMPOSITE EVEL commodate overshoots in the transmission path following the 8500 (in- cluding the transmitter), you may have to increase the setting of the so that the transmitted pilot is still at 9% modulation.
Page 88 14. Defeat final clipper (optional). If you are using the 8500 to drive a network with protection audio processors (like Orban’s Optimod-FM 2300) at each transmitter, you may wish to defeat the 8500’s final clipper to prevent double clipping, which can unnecessarily increase distortion on-air.
Page 89 2-35 OPTIMOD-FM DIGITAL INSTALLATION C) Set the S to the amount of time that the input must be below ILENCE ELAY the S before the 8500 automatically switches to the analog ILENCE HRESHOLD input. D) Set the A to Y if you wish the 8500 to automatically switch NALOG ALLBACK...
Page 90: Using Clock-Based Automation
2-36 INSTALLATION ORBAN MODEL 8500 Using Clock-Based Automation 1. If you have not already done so, set the system clock. If you can connect your 8500 to the Internet through its Ethernet port, you can then specify an Internet timeserver to set your 8500’s clock automatically. In ad- dition, Optimod PC Remote software can automatically set your Optimod’s local...
Page 91: Security And Passcode Programming
2-37 OPTIMOD-FM DIGITAL INSTALLATION a) Navigate to the each day of the week in turn; then use the knob to turn the day on or off. You can program the event to occur on as many days as you wish. b) Navigate to the Event Time field and set the hour, minute, and second when the automation event is to occur.
Page 92 2-38 INSTALLATION ORBAN MODEL 8500 3. All screens except Modify and Security 4. Presets, Modify, Save, Memory, and Automation 5. Presets and Automation 6. Presets Only passcodes with A access let you do software updates and set pass- CREENS code permissions.
Page 93 2-39 OPTIMOD-FM DIGITAL INSTALLATION The lockout timer begins at the top of the next minute. For example, if you set Lockout to be 1 minute at 9:10:33 AM and do not touch the front panel again, the front panel will lock out at 9:12:00 AM. 3.
Page 94: To Unlock The Front Panel
2-40 INSTALLATION ORBAN MODEL 8500 D) To edit the passcode, navigate to the P field. ASSCODE UTHORIZES CCESS Then turn the knob to choose the desired privilege level. E) Choose D when you are finished. The System Setup screen appears.
Page 95: Security And Orban's Pc Remote Application
Moreover, the most secure passcodes use a random combination of letters and numbers. Security and Orban’s PC Remote Application Any passcodes set on the 8500 will allow the PC Remote application to connect via direct, modem and Ethernet connections at the level authorized by the passcode.
Page 96 2-42 INSTALLATION ORBAN MODEL 8500 1. If your unit is an 8500 or 8500FM (i.e., if it has a full-featured front panel): A) Press the E button within two seconds after the 8500 displays its “Please NTER wait while Optimod initializes” screen upon boot-up.
Page 97: Administering The 8500 Through Its Serial Ports Or Ethernet
2-43 OPTIMOD-FM DIGITAL INSTALLATION This will create a new passcode, ADMIN, having A access. You CREENS can now use this passcode to access the security screens and administer existing passcodes as desired. • All existing passcodes will be retained. • To maintain good security, it is important to create a new A CREENS passcode and then to delete the ADMIN passcode.
Page 98 2-44 INSTALLATION ORBAN MODEL 8500 • To facilitate maintaining security at sites shared with others, the 8500 monitors Serial 2 for 30 minutes after power-up or after the last valid command is re- ceived, after which all commands at Serial 2 are ignored except for recalling a preset.
Page 99: Connecting To The 8500'S Ethernet Port Or Serial Port #1 Via A Terminal Program On A Pc
To control the 8500 directly through its Serial 1 or Ethernet port, you can use the freeware terminal emulation application PuTTY. If you wish to automate control, download Plink. Both are available at: ftp.orban.com/8500/Software/8500_Direct_TCP_Control_putty.zip. Direct Control Using PuTTY A) Start PuTTY.
Page 100 2-46 INSTALLATION ORBAN MODEL 8500 B) Click the T button, which is hard-wired for Port 23. ELNET C) In the T category, check “Implicit CR in every LF.” ERMINAL You should not have to change any other PuTTY Terminal, Window, or...
Page 101: Automated Control Using Putty/Plink
Automated Control Using Netcat Only one utility is required to use this method: netcat.exe, which is available from ftp.orban.com/8500/Software/ 8500_Direct_TCP_Control_netcat.zip This method is scripted with a .cmd file and calls a .txt file. • The .cmd file calls netcat.exe to make the network connection between the com- puter executing netcat.exe and 8500, and specifies the .txt file to use.
Page 102: Administrative Operations
2-48 INSTALLATION ORBAN MODEL 8500 The file “8500_P2_GreggOpen.cmd” contains: nc.exe -v -n -w 1 123.45.67.89 23 < 8500_P2_GreggOpen.txt The file “8500_P2_GreggOpen.txt” contains: RP GREGG OPEN [PASSWORD] disconnect Administrative Operations In the following tables of commands and responses: • Text that the user enters appears in MONOSPACED BOLD.
Page 103 2-49 OPTIMOD-FM DIGITAL INSTALLATION (valid passcode entry) PW ######## Accepted (invalid passcode entry) Denied Valid arguments follow the same rules for passcode entries made from the front panel and via 8500PC: • Passcode length must be 1 to 8 characters. •...
Page 104 2-50 INSTALLATION ORBAN MODEL 8500 5. To change the Gateway: Command Response (valid gateway) GW XXX.XXX.XXX.XXX GW: xxx.xxx.xxx.xxx entered (invalid gateway) ERROR. Using gw: yyy.yyy.yyy.yyy Using GW: yyy.yyy.yyy.yyy In the above table: XXX.XXX.XXX.XXX = the specified gateway; yyy.yyy.yyy.yyy = the present gateway in use.
Page 105 2-51 OPTIMOD-FM DIGITAL INSTALLATION Valid ports are defined according to existing standards. Any out-of-range or in- valid characters render the whole argument invalid. 8. To change the Modem Init string: Applies only for modem connections (via 8500’s Serial 1 port) Command Response MO ATF0S0=4...
Page 106 2-52 INSTALLATION ORBAN MODEL 8500 DIVERSITY DELAY: [ON,OFF] (for each output) (invalid passcode) [no error message is issued] In the above table: XXX = ANALOG_ON, ANALOG_OFF, DIGITAL1_ON, DIGITAL1_OFF, DIGITAL2_ON, DIGITAL2_OFF, COMPOSITE_ON, COMPOSITE_OFF, or ? ? returns the current on/off status for each output that is configured to emit the analog FM processed audio PASSCODE = ANY VALID PASSCODE.
Page 107 2-53 OPTIMOD-FM DIGITAL INSTALLATION 13. To change the polarity of the analog FM processing’s output: Command Response (valid passcode and argument) FM XXXXXXXX[PASSCODE] FM POLARITY is set to XXXXXXXX (invalid passcode) [no error message is issued] In the above table: XXXXXXXX = POSITIVE, NEGATIVE, OR ?;...
Page 108: Remote Control Interface Programming
2-54 INSTALLATION ORBAN MODEL 8500 AP [PASSCODE]?? Returns active processing preset control settings 16. To fetch information about the active setup from the 8500: Command Response AS [PASSCODE]? Returns active setup name AS [PASSCODE]?? Returns active setup control settings 17. To fetch diagnostic information from the 8500:...
Page 109 2-55 OPTIMOD-FM DIGITAL INSTALLATION • Input: Analog: selects the analog inputs. • Input: Digital: selects the digital input. No J.17 de-emphasis is applied to the digital input. • Input: Digital+J.17: selects the digital input and applies J.17 de-emphasis to the digital input. •...
Page 110: Tally Output Programming
2-56 INSTALLATION ORBAN MODEL 8500 when switching the 8500 between transmitters if the transmitters’ exciters produce opposite FM modulation polarities when driven by identical digital audio input signals. This setting affects any output emitting the analog FM processed signal, including the composite output.
Page 111: Networking And Remote Control
2-57 OPTIMOD-FM DIGITAL INSTALLATION Networking and Remote Control [Skip this section if you do not wish to connect to your 8500 remotely, either for downloading software upgrades or for PC Remote Control.] The 8500 has a built-in 100 Mbps Ethernet port that can be used with 10 Mbps or 100 Mbps networks using the TCP/IP protocol.
Page 112 2-58 INSTALLATION ORBAN MODEL 8500 Unless previously set away from the factory default, the Gateway should indicate 0.0.0.0. b) Press the E button to access the Set Gateway Address screen. NTER c) L to the first number and press the E button;...
Page 113 You will need two modems and two available phone lines, one of each for your PC and your 8500. Reminder: Orban Customer Service supports only the 3Com / U.S. Robot- ics® 56kbps fax modem EXT on the 8500 side (although other 56kbps modems will often work OK).
Page 114: Installing 8500 Pc Remote Control Software
8500’s serial port. (These services are also used to upgrade your 8500’s firmware when updates are available from Orban.) The exact process will vary, depending on how you wish to set up the communications. That is: •...
Page 115: Running The Orban Installer Program
If connecting by serial cable: a null modem cable (also called a “reverse” cable), supplied by Orban with your 8500 when it was shipped. This cable has DB9 fe- male connectors at both ends for connecting the 8500 to the serial port on your computer.
Page 116: Setting Up Ethernet, Lan, And Vpn Connections
ORBAN MODEL 8500 • This program installs the necessary files and adds an Orban / Optimod 8500 folder to your computer’s Start Menu. This folder contains shortcuts to the PC Remote application and to the documentation. If you accepted the option dur- ing installation, there is also a shortcut to the PC Remote application on your desktop.
Page 117: Synchronizing Optimod To A Network Time Server
INSTALLATION For details on your new 8500 software, from new features to operational sugges- tions, refer to our FTP site (ftp.orban.com/8500). Synchronizing Optimod to a Network Time Server [Skip this section if you do not wish to automatically synchronize your Optimod’s internal clock to a network timeserver, which may be part of your local network or located on the Internet.]...
Page 118 2-64 INSTALLATION ORBAN MODEL 8500 If the connection to the timeserver fails (due to network overload or other prob- lems), your Optimod will try once per hour to synchronize until it is successful. C) Locate to O . Using the knob, set it to the difference (in hours) between FFSET your time zone and Universal Time (UTC).
Page 119 2-65 OPTIMOD-FM DIGITAL INSTALLATION the IP address. If you are behind a firewall, make sure that port 123 is open. • If your connection failed, the gateway address might not be set correctly on your Optimod. The gateway address for the timeserver connection is the same gateway address that you set in step (1.C) on page 2-57.
Page 120: Updating Your 8500'S Software
2-66 INSTALLATION ORBAN MODEL 8500 • To use PC Remote to turn off your Optimod’s automatic synchronization, uncheck “Automatically synchronize with an Internet time server” on your PC. Then click the “Update Now” button on PC Remote. E) Navigate to Optimod PC Remote’s S...
Page 121 2-67 OPTIMOD-FM DIGITAL INSTALLATION ftp://orban.com/8500 See Installing 8500 PC Remote Control Software on page 2-60. See the readme8500_x.x.x.x.htm file (where x.x.x.x is the version number) for de- tails about the upgrade not given in this manual. The PC Remote installer will in- stall this file on your computer’s hard drive.
Page 122 2-68 INSTALLATION ORBAN MODEL 8500 E) The 8500 software update is now complete. You should now be able to con- nect to your 8500 via PC Remote. NOTE: If you cannot make a connection after a software upgrade, manu- ally reboot the 8500 with a normal “power-off/power-on” sequence.
Page 123: Appendix: Setting Up Serial Communications
Windows 2000 and Windows XP operating systems. Please note that the accompanying screen shots were originally prepared for Orban’s OPTIMOD-FM 8300 and refer to that product. However, they are fully appli- cable to the 8500. Preparing for Communication through Null Modem Cable 1.
Page 124 2-70 INSTALLATION ORBAN MODEL 8500 your LAN connection at the same time as you are connected to your 8500 by a direct serial cable, you must connect to your 8500 via the RAS Serial Cable modem, not Windows Direct Connect. After you have installed the RAS Serial Cable modem, you can use the instructions below for adding a “Modem Connection.”...
Page 125 2-71 OPTIMOD-FM DIGITAL INSTALLATION g) Select “Connect Directly to another computer.” h) Click “Next.” i) In the drop-down box, select the serial port you will be using to make the connection. j) Click “Next.” k) Select either “For all users” or “Only for myself.”...
Page 126 2-72 INSTALLATION ORBAN MODEL 8500 m)Enter a name for your Connection such as: “Connection to 8500.” n) Click “Finish.” o) Click “Yes.” B) Edit your new Direct Connection properties: a) Click “Settings.”...
Page 127 2-73 OPTIMOD-FM DIGITAL INSTALLATION b) Click the “General” tab. c) Select the device you set up in step (i) on page 2-71. This will usually be “Communications cable between two computers (COM1).” d) Click “Configure.” e) Set “Maximum speed (bps)” “115200.”...
Page 128 2-74 INSTALLATION ORBAN MODEL 8500 i) Select the Networking tab. j) Make sure that “PPP: Windows 95 / 98 / NT 4 / 2000, Internet” ap- pears in the “Type of dial-up server I am calling” field. k) Make sure that “Inter- net Protocol (TCP/IP) is checked.
Page 129: Connecting Using Windows Xp Direct Serial Connection
2-75 OPTIMOD-FM DIGITAL INSTALLATION trouble the first time after creating a connection according to the instructions above, try restarting your computer to clear its serial port. 3. To change the properties of an existing connection: Right-click the connection in the “connection List” window and choose “Proper- ties.”...
Page 130 2-76 INSTALLATION ORBAN MODEL 8500 g) Choose “Connect directly to another computer.” h) Click “Next.” i) In the drop-down box, select the serial port you will be using to make the connection. j) Click “Next.” k) Type in a name for your...
Page 131 2-77 OPTIMOD-FM DIGITAL INSTALLATION m)Click “Yes.” B) Edit your new Direct Connection proper- ties: a) Click “Settings.” b) Click the “General” tab. c) Select the device you set up in step (i) on page 2-76. This will usually be “Communications cable between two computers (COM1).”...
Page 132 2-78 INSTALLATION ORBAN MODEL 8500 e) Set “Maximum Speed (bps)” to 115200. f) Check “Enable hard- ware flow control.” g) Make sure all other hardware features are unchecked. h) Click “OK.” i) Select the Networking tab. j) Make sure that “PPP: Windows 95 / 98 / NT 4 / 2000, Internet”...
Page 133: Preparing For Communication Through Modems
You will need two modems and two available phone lines, one of each for your PC and your 8500. Reminder: Orban supports only the 3Com / U.S. Robotics® 56kbps fax modem EXT on the 8500 side (although other 56kbps modems will often work OK).
Page 134: Connecting Using Windows 2000 Modem Connection
2-80 INSTALLATION ORBAN MODEL 8500 C) Set the modem to A and turn it on. NSWER For 3Com / U.S. Robotics® 56kbps fax modem EXT, set dipswitches 3, 5, and 8 in the down position to activate the setting. All NSWER other dipswitches should be set to the up position.
Page 135 2-81 OPTIMOD-FM DIGITAL INSTALLATION C) Create a New Windows 2000 Direct Con- nection: a) Launch 8500 PC Remote. b) Choose “Connect / New 8500” c) Give your 8500 a name (e.g., “KABC”) by entering this name in the “8500 Alias” field.
Page 136 2-82 INSTALLATION ORBAN MODEL 8500 i) Enter phone number of the mo– dem connected to the 8500 that you are set- ting up. j) Click the “Next” but– ton. k) Select either “For all users” or “Only for myself.” correct...
Page 137 2-83 OPTIMOD-FM DIGITAL INSTALLATION p) Click “Yes.” D) Edit your new Direct Connection prop- erties: a) Click “Settings.” b) Click the “General” tab. c) In the “Connect using” field, select the modem you will be using to make the connection on the PC side. d) Click “Configure.”...
Page 138 2-84 INSTALLATION ORBAN MODEL 8500 e) Set “Maximum speed (bps)” to “115200.” f) Check “Enable hard- ware flow control.” g) Check “Enable mo- dem error control.” h) Check “Enable mcdem compression.” i) Make sure that all other boxes are not checked.
Page 139: Connecting Using Windows Xp Modem Connection
2-85 OPTIMOD-FM DIGITAL INSTALLATION 2. Launch a Windows 2000 Modem connection. Once you have set up a “connection” specifying a modem connection in the 8500 PC Remote application (see To set up a new connection on page 3-78), choosing this connection from 8500 PC Remote automatically opens a Windows modem connection to your 8500.
Page 140 2-86 INSTALLATION ORBAN MODEL 8500 Not all PCs have a COM2. IMPORTANT: The COM port you choose at this point must match the COM port to which you connected your modem. g) From the tabs at the top, choose “Port Settings” and configure the settings to match your PC modem.
Page 141 2-87 OPTIMOD-FM DIGITAL INSTALLATION C) Create a new Windows XP modem connec- tion: a) Launch 8500 PC Remote. b) Choose “Connect / New 8500.” The Connection Properties win- dow opens. c) Give your 8500 a name (e.g., “KABC”) by entering this name in the “8500 Alias” field.
Page 142 2-88 INSTALLATION ORBAN MODEL 8500 j) Enter the phone num- modem connected to the 8500 you are setting up. k) Click “Next.” l) Type in a name for your Connection such “Connection 8500 – Modem” m)Click the “Finish” but- ton.
Page 143 2-89 OPTIMOD-FM DIGITAL INSTALLATION D) Edit your new Direct Connection proper- ties: a) Click “Settings.” b) Click the “General” tab. c) Select the modem you will be using to make the connection on the PC side. d) Click “Configure.”...
Page 144 2-90 INSTALLATION ORBAN MODEL 8500 e) Set “Maximum speed (bps)” to “115200.” f) Check “Enable hardware flow control.” g) Check “Enable modem error control.” h) Check “Enable mcdem compression.” i) Make sure that no other box is checked. j) Click “OK.”...
Page 145 2-91 OPTIMOD-FM DIGITAL INSTALLATION You can connect by selecting the desired connection from the drop-down list in the C menu. ONNECT You can also connect by double-clicking the connection in the “Connection List” window. If the connection is successful, a dialog bubble will appear on the bottom right hand corner of the screen verifying your connection.
Page 147: Section 3 Operation
OPTIMOD-FM DIGITAL OPERATION Section 3 Operation 8500 Front Panel Headphone Jack allows you to monitor the output of the processing through headphones. The headphones carry the same output as the rear-panel analog out- put: either analog-channel processing, HD processing, or low-delay monitor process- ing.
Page 148 AGC meters show the gain reduction of the slow AGC processing that precedes the multiband compressor. Full-scale is 25 dB gain reduction. The AGC is a two-band unit with Orban’s patented bass coupling system. The two meters indicate the gain reduction of the AGC Master and Bass bands.
Page 149: Introduction To Processing
OPTIMOD-FM DIGITAL OPERATION HD (HD Digital Radio) G/R meters show the gain reductions in the left and right HD look-ahead limiters. These meters only appear when the Switch (on the HD ETER page of the 8500’s menu) is set to HD GR. NPUT UTPUT IGITAL...
Page 150: Distortion In Processing
In FM processing, there is a direct trade-off between loudness, brightness, and dis- tortion. You can improve one only at the expense of one or both of the others. Thanks to Orban’s psychoacoustically optimized designs, this is less true of Orban processors than of any others. Nevertheless, all intelligent processor designers must acknowledge and work within the laws of physics as they apply to this trade-off.
Page 151: Fundamental Requirements: High-Quality Source Material And Accurate Monitoring
OPTIMOD-FM DIGITAL OPERATION • As close as possible to the input at all times (using the Two-Band structure), or • open but more uniform in frequency balance (and often more dramatic) than the input (using the Five-Band structure with slow release times), or •...
Page 152: About The 8500'S Signal Processing Features
CDs that this energy cannot possibly survive the FM pre-emphasis / de- emphasis process. Although the 8500 loses less high frequency energy than any pre- vious Orban processor (due to improvements in high frequency limiting and clipping technology), it is nevertheless no match for CDs that are mastered so bright that they will curl the vinyl off car dashboards.
Page 153 Stereo Enhancement: The 8500 provides two different stereo enhancement algo- rithms. The first is based on Orban’s patented analog 222 Stereo Enhancer, which in- creases the energy in the stereo difference signal (L–R) whenever a transient is de- tected in the stereo sum signal (L+R).
Page 154 622B), using a sophisticated, proprietary optimization program. The curves are matched to better than 0.15 dB. This means that their sound is very close to the sound of an Orban analog parametric. They also use very high quality filter algo- rithms to ensure low noise and distortion.
Page 155 “speech.” DSP-derived Stereo Encoder: The 8500’s stereo encoder is derived from algo- rithms first developed for the high-performance Orban 8218 stand-alone encoder. The 8500’s stereo encoder operates at 512 kHz-sample rate to ease the performance requirements of the D/A converter’s reconstruction filter, making it possible to achieve excellent stereo separation that is stable over time and temperature.
Page 156: Itu-R 412 Compliance
3-10 OPERATION ORBAN MODEL 8500 shoots introduced by the pilot- and SCA-protection filters following the composite clipper.) Like conventional composite clipping, the “Half-Cosine Interpolation” composite limiter can still cause aliasing distortion between the stereo main and subchannels. However, this is the inevitable cost of increasing the power-handling capability be- yond 100% modulation above 5 kHz—the characteristic that makes some people...
Page 157: Two-Band Purist Processing
3-11 OPTIMOD-FM DIGITAL OPERATION This system is patented. Two-Band Purist Processing In addition to five-band processing, suitable for pop music and talk formats, the 8500 offers a very high-quality two-band algorithm. This is phase-linear and features the same AGC as the five-band processor, followed by a two-band processor with look-ahead limiting.
Page 158: Input/Output Delay
3-12 OPERATION ORBAN MODEL 8500 In FM HD mode, you can use the 8500’s parametric high frequency shelving filter to supply a high frequency rolloff that tames excessive brightness in the HD output. Simultaneously, this HF rolloff may reduce high frequency artifacts in the relatively low bite-rate codec used in the iBiquity HD Radio system.
Page 159: Customizing The 8500'S Sound
8500 users will never need to go beyond the Basic level of control. The combinations of subjective setup control settings produced by this control have been optimized by Orban’s audio processing experts on the basis of years of experience designing audio processing and upon hundred of hours of listening tests.
Page 160: Intermediate Modify
It allows adjusting the dynamics section at approximately the level of control avail- able in Orban’s 8200 processor. The controls are not extremely dangerous (although you can still get into trouble if you try hard enough). Most people will never have any reason to go beyond Intermediate Modify, even if they want to create a “signa-...
Page 161: Gain Reduction Metering
3-15 OPTIMOD-FM DIGITAL OPERATION A subtle side effect of this is the 8500’s behavior when you switch pre-emphasis. All factory presets actually have two variations, one for 50µs and one for 75µs. The 8500 uses the appropriate variation is automatically. However, once you have created a user preset, it will no longer automatically switch its parameters when you change pre-emphasis.
Page 162: To Delete A User Preset
3-16 OPERATION ORBAN MODEL 8500 Use the L button to navigate to each character. Then press E OCATE NTER accept that character. The S key on the virtual keyboard changes it between upper and HIFT lower case. F) L to the S...
Page 163: About The Processing Structures
3-17 OPTIMOD-FM DIGITAL OPERATION About the Processing Structures If you want to create your own User Presets, the following detailed discussion of the processing structures is important to understand. If you only use Factory Presets or if you only modify them with L , then you may still find the material interest- ing, but it is not necessary to understand it to get excellent sound from the 8500.
Page 164: Factory Programming Presets
Unused structures operate constantly in the background, so switching between structures occurs with a seamless cross-fade. Unlike older Orban processors like the 8200, no DSP code is reloaded and no audio mute is necessary.
Page 165: Table 3-1: Factory Programming Presets
Protection Limiter, Two-Band and Five-Band sections that follow. Each Orban factory preset has full L capability. The table below shows the presets, including the source presets from which they were taken and the nominal setting of each preset.
Page 166 Bass, Mid EQ, and HF EQ controls. ASIC ODIFY Unlike Orban’s 8200, you can make changes in EQ (and stereo enhancement) with- out losing the ability to use L settings. Of course, L is still available for the unedited preset if you want to go back to it.
Page 167 GREGG: GREGG, GREGG OPEN, and GREGG LL all use a 200 Hz band1/band2 crossover frequency to achieve a bass sound similar to the classic five-band Gregg Labs FM processors designed by Orban’s Vice President of New Product Develop- ment, Greg Ogonowski. Dynamically, these presets produce a slight increase in bass...
Page 168 3-22 OPERATION ORBAN MODEL 8500 sound works particularly well with radios having good bass response, such as many auto radios today. In terms of loudness, midrange texture, and HF texture, these presets are similar to the LOUD-HOT+BASS presets. IMPACT: There are two IMPACT presets.
Page 169 3-23 OPTIMOD-FM DIGITAL OPERATION LOUD-HOT+BASS is based on LOUD-HOT. It is tuned for the maximum amount of bass we could add without creating obvious distortion on some program material. For maximum punch, it uses the HARD bass clipper at higher L settings.
Page 170 3-24 OPERATION ORBAN MODEL 8500 on-field sounds, so the preset does not pump this up as the NEWS-TALK preset would tend to do. ROCK: ROCK-DENSE, ROCK-MEDIUM, and ROCK-OPEN provide a bright high end and punchy low end (although not as exaggerated as the URBAN presets). A mid- range boost provides enough presence energy to ensure that vocals stand out.
Page 171: Equalizer Controls
3-25 OPTIMOD-FM DIGITAL OPERATION very good ratings. However, if the loudness/distortion tradeoff is not to your taste, use L to turn it down, producing lower loudness with less distortion. URBAN: There are two URBAN (Rap) presets: HEAVY and LIGHT. These are similar to ROCK-MEDIUM and ROCK-OPEN but with a different bass sound.
Page 172: Table 3-2: Equalization Controls
3-26 OPERATION ORBAN MODEL 8500 Bass Slope sets the slope (dB/octave) of the transition between the top and bottom of the shelf. Because the Five-Band structure often increases the brightness of pro- gram material, some bass boost is usually desirable to keep the sound spectrally well balanced.
Page 173 Low Frequency Parametric Equalizer is a specially designed parametric equalizer whose boost and cut curves closely emulate those of a classic Orban analog para- metric equalizer with conventional bell-shaped curves (within ±0.15 dB worst-case). This provides warm, smooth, “analog-sounding” equalization.
Page 174 3-28 OPERATION ORBAN MODEL 8500 Mid Gain determines the amount of peak boost or cut (in dB) over a ±10 dB range. Mid Width determines the bandwidth of the equalization, in octaves. The range is 0.8-4.0 octaves. If you are unfamiliar with using a parametric equalizer, 1 octave is a good starting point.
Page 175 The difference will never exceed the difference that would have other- wise occurred if the lowest frequency band were independently gated. If you are familiar with older Orban processors like the 8200, this is the maximum amount of boost that would have occurred if you had set their...
Page 176: Stereo Enhancer Controls
The stereo enhancer is common to the FM and HD processing chains. You can oper- ate it in one of two modes or “styles.” The first emulates the Orban 222 analog ste- reo enhancer, while the second mode, called Delay, emulates a popular enhancer from another manufacturer that adds a delayed version of the L–R signal to the...
Page 177: Agc Controls
3-31 OPTIMOD-FM DIGITAL OPERATION The stereo enhancer has the following controls: Amount sets the maximum spatial enhancement. Enhancer In / Out bypasses the stereo enhancer. O is equivalent to setting the to 0. MOUNT L-R / L+R Ratio Limit sets the maximum amount of enhancement to prevent multi- path distortion.
Page 178 (such as a CLASSICAL preset). The AGC is also ordinarily de- feated if you are using an external AGC (like Orban’s 6300). However, in this case it is better to defeat the AGC globally in the System Setup screen.
Page 179 3-33 OPTIMOD-FM DIGITAL OPERATION • Moderate AGC + light compression produces an open, natural quality with automatic re-equalization and increased consistency of frequency balance. • Moderate AGC + moderate compression gives a more dense sound, particularly as the release time of the multiband compressor is sped up. •...
Page 180: Advanced Agc Controls
3-34 OPERATION ORBAN MODEL 8500 the master gain reduction without limit. In the previous example, the bass gain re- duction could be 25 dB The normal setting of the AGC B control is 0 dB, which allows the AGC OUPLING bass band to correct excessive bass as necessary but does not permit it to provide a dynamic bass boost.
Page 181 Previous Orban AGCs had compression ratios very close to ∞:1, which produces the most consistent and uniform sound. However, the 8500 compressor can reduce this ratio to as low as 2:1.
Page 182 3-36 OPERATION ORBAN MODEL 8500 AGC Bass Release sets the release time of the AGC bass compressor. Master Delta Threshold allows you to set the difference between the compression thresholds of the sum and difference channels. (This control is only useful when you set the AGC M .) By setting the threshold of the difference channel...
Page 183: Clipper Controls
FFSET are only available in the Advanced Modify screen. Bass Clip Thresh sets the clipping threshold of Orban’s patented embedded bass clipper, which is used only in the FM processing chain and not in the HD chain. The clipper is embedded in the multiband crossover so that any distortion created by clipping is rolled off by part of the crossover filters.
Page 184 3-38 OPERATION ORBAN MODEL 8500 listening tests with many types of critical program material. In the Five-Band structure, the clipper is located after bands 1 and 2 are summed. In the Two-Band structure, the clipper is located after the Bass band.
Page 185 3-39 OPTIMOD-FM DIGITAL OPERATION per mode and some without, switching between these presets is likely to cause clicks unless you do it during silence. However, these clicks will never cause modulation to exceed 100%. One of the essential differences between the H and LLH bass clip- per modes is that switching between Hard and Med does not change de-...
Page 186 The final clipper operates at 256 kHz sample rate and is fully anti-aliased. Composite Limit Mode determines if the composite limiter will operate as a hard clipper or as Orban’s patented “Half-Cosine Interpolation” composite limiter (which is not a clipper).
Page 187: Advanced Clipper Controls
3-41 OPTIMOD-FM DIGITAL OPERATION duced them. If you want to use the composite limiter more heavily, one option is to trade off composite limiting against left/right domain overshoot com- pensation. To do this, back off the OSC (Overshoot Compensa- tion) control and increase the C control setting pro- OMPOSITE IMIT...
Page 188 3-42 OPERATION ORBAN MODEL 8500 OSComp Dr (Overshoot Compensation Drive) sets the drive into the overshoot com- pensator with reference to the final clip threshold, in units of dB. The normal setting is “0 dB.” The overshoot compensator can produce audible distortion on material with strong high frequency content (like bell trees) and this control lets you trade off this distortion against loudness.
Page 189: The Two-Band Structure
Five-Band structure. Like the “Two-Band Purist” structure in Orban’s OPTIMOD-FM 8200, the 8500’s Two-Band Structure is phase-linear through- out to maximize sonic transparency.
Page 190: The Protection Presets
3-44 OPERATION ORBAN MODEL 8500 The Protection Presets There are two Protection Factory Presets. Both use the same DSP code as the Two- Band Purist structure, but with the AGC defeated. PROTECTION 0 DB sets the limiting threshold so that limiting almost never occurs.
Page 191: Customizing The Settings
3-45 OPTIMOD-FM DIGITAL OPERATION During the evening hours when the audience is more likely to listen critically, a clas- sical station may wish to switch to a custom preset (derived from the CLASSICAL-2 BAND preset) that performs less gain reduction. You can create such a preset by modifying the CLASSICAL-2 BAND preset with the L control—turn it down to taste.
Page 192: Table 3-6: Two-Band Controls
3-46 OPERATION ORBAN MODEL 8500 Regardless of the release time setting, we feel that the optimum amount of gain re- duction in the two-band compressor for popular music and talk formats is 10-15 dB. If less gain reduction is used, loudness can be lost. For classical formats, operating...
Page 193 3-47 OPTIMOD-FM DIGITAL OPERATION noise from being brought up during short pauses and pumping does not occur at high levels of gain reduction. Therefore, the primary danger of using large amounts of gain reduction is that the level of quiet passages in input material with wide dy- namic range may eventually be increased unnaturally.
Page 194: Advanced Two-Band Controls
3-48 OPERATION ORBAN MODEL 8500 2B Bass Coupling control is used to set the balance between bass and the rest of the frequency spectrum. The two-band compressor processes audio in a master band for all audio above ap- proximately 200 Hz and a bass band for audio below approximately 200 Hz. The 2B...
Page 195 3-49 OPTIMOD-FM DIGITAL OPERATION Lookahead determines the lookahead time (in milliseconds) in the two-band com- pressor. 3.6 milliseconds give minimum overshoot for the factory preset attack time of 11.0. If you adjust L for less delay, you will get progressively more over- OOKAHEAD shoot.
Page 196: The Five-Band Structure
3-50 OPERATION ORBAN MODEL 8500 The Five-Band Structure The Five-Band structure consists of a stereo enhancer, a slow gain-riding two-band AGC, an equalization section, a five-band compressor, a dynamic single-ended noise reduction system, an output mixer (for the five bands), and a complex peak limiting system.
Page 197: The Five-Band Structure's Full Setup Controls
3-51 OPTIMOD-FM DIGITAL OPERATION The Five-Band Structure’s Full Setup Controls The tables below show the Multiband and Band Mix controls in the dynamics sec- tion. The AGC, Equalizer, Stereo Enhancer, and Clipper controls are common to both the Two-Band and Five-Band structures and are discussed in their own sections above.
Page 198 3-52 OPERATION ORBAN MODEL 8500 pressor. Range is 25 dB. Adjust the MB D control to your taste and format requirements. Used lightly RIVE with slower multiband release times, the multiband compressor produces an open, re-equalized sound. The multiband compressor can increase audio density when op- erated at faster release times because it acts increasingly like a fast limiter (not a compressor) as the release time is shortened.
Page 199: Table 3-8: Mb Attack / Release Controls
3-53 OPTIMOD-FM DIGITAL OPERATION is almost always preferable to the Two-Band structure for any popular music format. The Medium Slow settings (M and M 2) are appropriate for more adult-oriented formats that need a glossy show-business sound, yet whose ratings depend on maintaining a longer time spent listening than do conventional Contemporary Hit Radio (CHR) formats.
Page 200 3-54 OPERATION ORBAN MODEL 8500 on the original recording. The Fast setting is used only for the TALK and SPORTS factory pro- gramming formats. Processing for this sound keeps the levels of an- nouncers and guests consistent, pulls low-grade telephone calls out of the mud, and keeps a proper balance between voice and commercials.
Page 201 3-55 OPTIMOD-FM DIGITAL OPERATION from V1.x to V2.x, it should thus be unnecessary to change the MB GATE setting in User Presets unless the AGC’s nominal gain reduction is significantly different from 10 dB. The multiband compressor gate causes the gain reduction in bands 2 and 3 of the multiband compressor to move quickly to the average gain reduction occurring in those bands when the gate first turns on.
Page 202 3-56 OPERATION ORBAN MODEL 8500 unusually noisy program material. Modern commercial recordings will almost never need it. We expect that its main use will be in talk-oriented programming, including sports. Please note that it is impossible to design such a system to handle all program mate- rial without audible side effects.
Page 203: Table 3-9: Mb Band Mix Controls
3-57 OPTIMOD-FM DIGITAL OPERATION gain control signals; this feed is unaffected by the band 4 M ELTA control. Range is 0 to 100% coupling. Band 3 > 2 Coupling and Band 2 > 3 Coupling controls determine the extent to which the gains of bands 2 and 3 track each other.
Page 204: Advanced Multiband And Band Mix Controls
3-58 OPERATION ORBAN MODEL 8500 termine the spectral balance of the low-delay monitor output. The range of the band mix controls has been purposely limited because the only gain control element after these controls is the back-end clip- ping system (including the multiband clipper / distortion controller), which can produce considerable audible distortion if overdriven.
Page 205 3-59 OPTIMOD-FM DIGITAL OPERATION B1-B4 Attack (Time); Speech B1-B4 Attack controls set the speed with which the gain reduction in each band responds to level changes at the input to a given band’s compressor for music and speech respectively, following the 8500’s automatic speech/music detector.
Page 206 3-60 OPERATION ORBAN MODEL 8500 introduces “distortion.” A setting of 4 to 5 dB works best in most cases. Factory de- fault is 5 dB for virtually all presets. This control does not affect the HD processing chain. HF Clip Threshold sets the threshold of the multiband clipper in band 5 with refer- ence to the final clipper threshold, in dB.
Page 207 3-61 OPTIMOD-FM DIGITAL OPERATION pumping in a band and you still wish to adjust the limiter attack to a low setting, you can sometimes ameliorate or eliminate the pumping by slowing down the com- pressor attack time in that band. Delta Release controls are differential controls.
Page 208: To Override The Speech/Music Detector
This control does not affect the HD processing chain. To Override the Speech/Music Detector Some Orban customers have requested the ability to force the 8500 into “speech” or “music” mode via GPI. One can achieve this functionality by creating a “speech” pre- set and a “music”...
Page 209: About The 8500' Shd / Digital Radio Processing
8500FM can be upgraded to an 8500 in the field by installing the plug-in control module contained in the 8500UPG/HD upgrade kit, which can be purchased from your Orban dealer. The 8500 HD (“HD Radio”) output is designed to feed streaming, netcasting, and digital radio channels, which can be Eureka 147, DRM, or the iBiquity®...
Page 210 3-64 OPERATION ORBAN MODEL 8500 to I , this will restore any edits you made to the HD controls be- OUPLING NDEPENDENT fore you set the FM>HD C back to C ONTROL OUPLING OUPLED Unlike the FM-channel’s five-band compressor/limiter, Band 5 of the HD five-band compressor/limiter has a compression sidechain that is identical in structure to the sidechains of the B1-B4 compressor/limiters.
Page 211: Delay Difference Between Hd And Fm Outputs
3-65 OPTIMOD-FM DIGITAL OPERATION headroom to compensate for the unpredictable peak level changes that the pre- emphasis induces. If the HD output is driving a channel without pre-emphasis, it will control peak lev- els with an uncertainty of approximately 1 dB. However, you may want to allow headroom to compensate for data reduction-induced peak overshoots at the re- ceiver, which might otherwise cause clipping.
Page 212: Table 3-10: Hd I/O Setup Controls
3-66 OPERATION ORBAN MODEL 8500 signal to the input of the analog FM exciter. This includes the 8500 composite out- put, allowing you to use the 8500’s stereo encoder and composite limiter during HD Radio broadcasts. V2 software removes the D...
Page 213 Maximum available delay depends on the type of DSP board installed in your 8500. Early units offer up to 8.123 seconds of delay, while later units offer up to 16.246 seconds. 8-second boards can be upgraded for a fee; please contact Orban Customer Service.
Page 214: Digital Output
3-68 OPERATION ORBAN MODEL 8500 The HD P control can make it easier to match the analog and HD channel de- OLARITY lay in an HD Radio installation. Temporarily set this control to cause a null, sum the HD and FM channels, and adjust the HD D control to achieve the deepest null.
Page 215: Unique Hd Audio Controls
3-69 OPTIMOD-FM DIGITAL OPERATION In many cases, the source material has already been correctly dithered, so you will not need to add dither and can set this control to O . However, particularly if you use the Noise Reduction feature, the processing can sometimes attenuate input dither to a point where it is insufficient to dither the output correctly.
Page 216: Table 3-11: Unique Hd Audio Controls (Found In Hd Limiting Page)
3-70 OPERATION ORBAN MODEL 8500 dependent. The FM HD mode emulates 8500 version 1.x software, except that it hides the HD B controls. The I mode is new in version 2. It allows NDEPENDENT you to set the HD equalizer and HD multiband compressor/limiter audio controls in- dependently of their FM counterparts.
Page 217: Itu-R Multiplex Power Controller
3-71 OPTIMOD-FM DIGITAL OPERATION HD Limiter Dr sets the drive level to the digital-channel look-ahead limiter. The factory default is When setting up an HD Radio facility, set the O control to 0 dBfs. EVEL Then adjust the HD L in the on-air preset to match the loud- IMITER RIVE...
Page 218: Figure 3-3: Multiplex Power Over 15 Minute Observation Interval With Multiplex Power Controller Active, Measured At The Optimod's Composite Output
3-72 OPERATION ORBAN MODEL 8500 pean countries are now enforcing this recommendation. (See ITU-R 412 Compliance on page 3-10 for more information.) Multiplex Power Threshold: The 8500 provides a means to limit the integrated multiplex power to the ITU standard by a closed-loop technique that allows you to use any preset and to create customized presets freely.
Page 219: Audio Processing And The Multiplex Power Threshold Control
3-73 OPTIMOD-FM DIGITAL OPERATION Many paths have overshoot and this forces you to reduce the average modulation to avoid overmodulating the transmitter. This would reduce the multiplex power by the same amount, forcing the multiplex power below the ITU requirement. To compensate for this, match the M control to the peak ULTIPLEX...
Page 220: Test Modes
3-74 OPERATION ORBAN MODEL 8500 This makes it impractical to "bank" power. For example, at first glance one might think that a classical music station could exploit a period of quiet music to allow a crescendo to get louder than it would using the 8500's relatively fast integration time.
Page 221: Getting The Bass Sound You Want
3-75 OPTIMOD-FM DIGITAL OPERATION This is only true if the analog-FM M control is set to ODULATION . If this control is set to M -L, M -R, or M , then the TEREO digital radio processed signal will emit a M -L, M -R, or M signal respectively.
Page 222 3-76 OPERATION ORBAN MODEL 8500 bass fundamentals can exceed 100% modulation without having the composite ste- reo waveform itself exceed this level. The attack time of the band 1 compressor also affects bass punch by determining the amount of bass transient that is allowed to pass through the compressor before the attack clamps down the rest of the waveform.
Page 223: Using The 8500 Pc Remote Control Software
3-77 OPTIMOD-FM DIGITAL OPERATION applied to the band 1 compressor. If you now increase the fixed bass boost by using the L equalizer with an 18 dB/octave slope and 120 Hz tuning, the net result will be a dynamic reduction of bass power, typically centered around 160 Hz. If you use enough low bass boost, there will also be a slight increase in the bass power be- low 100 Hz or so.
Page 224: To Set Up A New Connection
3-78 OPERATION ORBAN MODEL 8500 cut to 8500PC.exe on your desktop and in your Start Menu under Orban\Optimod 8500. 8500 PC Remote can control only one 8500 at a time but it can readily switch be- tween several 8500s. 8500 PC Remote has a built-in “address book” that allows it to select and connect to: •...
Page 225: To Initiate Communication
A window will appear saying, “Connecting to the 8500.” A few moments later, a new message will appear: “Please Wait. Updating Local Files.” When run, the Orban PC Remote software installer makes copies of all 8500 fac- tory preset files on your local hard drive. The PC Remote software reads these files to speed up its initialization.
Page 226: To Recall A Preset
3-80 OPERATION ORBAN MODEL 8500 • To set a control, click it (it will become highlighted) and then adjust it by dragging it with the mouse or moving the wheel on the mouse. • You can also use the ← and → keys on the numeric keypad to adjust any control.
Page 227: Note To Users Familiar With Older Version Of Pc Remote
The encryption options prevent archived presets, system files, and auto- mation files from being restored if the user does not have the password used for the encryption. There is no “back door”— Orban cannot help you to decrypt a preset whose password is unknown.
Page 228 All User Presets are compatible with all 8500 software versions and are compatible with both 8500 and 8500FM. If Orban adds new controls to a software version, the new software will assign a reasonable default value to any control missing in an old User Preset.
Page 229: To Share An Archived User Preset Between 8500S
3-83 OPTIMOD-FM DIGITAL OPERATION E) To restore a system file: a) Set the F field to the System Setup file type (*.orb85setup). ILES b) Select the desired system file in the dialog box. c) Click the R button. ESTORE F) To restore an automation file: a) Set the F field to the Automation file type (*.orb85autom).
Page 230: Operation Using The Keyboard
Optimod 8500 PC Re- mote (usually \Program Files\Orban\Optimod 8500). The folder has the same name as the Alias name. Once you establish the initial connection to the 8500, all presets for that 8500 are automatically copied to the Alias folder;...
Page 231: Multiple Installations Of Optimod 8500 Pc Remote
To prevent the installer from overwriting the old version, you must specify a different installation folder when you install the new version (for example, \Program Files\Orban\Optimod 8500v2). Each version of 8500 PC Remote will display all 8500 Aliases, even those pointing to 8500s with incompatible version numbers.
Page 232 3-86 OPERATION ORBAN MODEL 8500 If you decide to install the new software to a different location on your PC, new Ali- ases created using the new software will not be located in the same place as the old Aliases.
Page 233: Section 4 Maintenance
OPTIMOD-FM DIGITAL MAINTENANCE Section 4 Maintenance Routine Maintenance The 8500 OPTIMOD-FM Audio Processor uses highly stable analog and digital cir- cuitry throughout. Recommended routine maintenance is minimal. 1. Periodically check audio level and gain reduction meter readings. Become familiar with normal audio level meter readings and with the normal performance of the G/R metering.
Page 234: Subassembly Removal And Replacement
MAINTENANCE ORBAN MODEL 8500 Subassembly Removal and Replacement See page 6-35 for the Circuit Board Locator and Basic Interconnections diagram. 1. Removing the Top Cover. To access the main boards, power supply board or display assembly, you must remove the top cover.
Page 235 OPTIMOD-FM DIGITAL MAINTENANCE G) Remove the six Phillips screws holding the DSP board to the bottom of the chassis. H) Remove the DSP board. 4. Removing the Front Panel. To service the headphone amplifier, the color LCD display, the pushbuttons, or the rotary encoder, it is first necessary to remove the front panel assembly.
Page 236 MAINTENANCE ORBAN MODEL 8500 All of the knobs and buttons are friction-fit and can be removed, if necessary, by pulling them off their shafts. However, to avoid possibly damaging the rotary encoder, we advise not removing its knob unless necessary. Instead, to access the screw partially blocked by the rotary encoder’s knob, use a small screwdriver and...
Page 237 OPTIMOD-FM DIGITAL MAINTENANCE A) Unscrew the four standoffs that had supported the CPU board before it was removed. B) Carefully pull the Display Interface Board evenly away from the Base Board, being careful not to stress any ribbon cables still connected to it. C) Unplug any ribbon cables from the Display Interface Board, which now can be removed completely.
Page 238 MAINTENANCE ORBAN MODEL 8500 14. Replacing the Power Supply Assembly: A) Hold power supply board into main chassis, so that it aligns with the four mounting holes on the top apron of the chassis. B) Replace the four Phillips screws holding the power supply assembly to the top apron of the chassis, but do not fully tighten them yet.
Page 239: Field Audit Of Performance
OPTIMOD-FM DIGITAL MAINTENANCE Referring to step 10, follow the instructions in reverse. 19. Replacing the RS-232 Board: Referring to step 9, follow the instructions in reverse. 20. Reassembling the Color LCD Display and carrier board. Referring to step 8, follow the instructions in reverse. Verify that pin one of the ribbon cables (red stripe) is oriented correctly.
Page 240 MAINTENANCE ORBAN MODEL 8500 The NAB Broadcast and Audio System Test CD is an excellent source of test signals when used with a high-quality CD player. • Spectrum analyzer with tracking generator Stanford Research Systems SR760 or equivalent. Alternatively, a sweep...
Page 241 OPTIMOD-FM DIGITAL MAINTENANCE 1. Prepare the unit. A) Set the GND LIFT switch to the earth ground symbol setting (left position) to connect chassis ground to circuit ground. B) Use the front panel controls to set the 8500's software controls to their de- fault settings, as follows: a) From the main menu, choose Input/output.
Page 242: Table 4-1: Decoder Chart For Power Supervisor
4-10 MAINTENANCE ORBAN MODEL 8500 2. Test the power supply A) If the power supply is entirely dead and the fuse is not blown, verify that the primary winding of the power transformer is intact by measuring the resis- tance of the power supply at the IEC AC line connector.
Page 243 4-11 OPTIMOD-FM DIGITAL MAINTENANCE 3. Check Analog Output Trim Levels. A) Verify 8500 software controls are set to their default settings. (Refer to page 4-9.) B) Feed the 8500 output with the built-in 400 Hz Test tone. To turn on the T tone: a) Navigate to System Setup.
Page 244 4-12 MAINTENANCE ORBAN MODEL 8500 5. Check distortion performance of Analog I/O. A) Verify 8500 software controls are set to their default settings. (Refer to page 4-9.) B) Be sure you are still in B mode [see step (3.F)]. YPASS...
Page 245 4-13 OPTIMOD-FM DIGITAL MAINTENANCE F) Inject the Digital Input with a sample rate of 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz. Use 24-bit words. G) Listen to the analog outputs of the 8500 and verify that the output sounds clean and glitch-free regardless of the input sample rate.
Page 246 4-14 MAINTENANCE ORBAN MODEL 8500 Frequency 400 Hz Mod Level Mod Type Test: Pilot G) Navigate to I and then to screen I . Set > C NPUT OUTPUT NPUT UTPUT OMPOSITE the O to make the stereo monitor read 100% total modulation.
Page 247 4-15 OPTIMOD-FM DIGITAL MAINTENANCE 9. Optional tests. A) You can test each GPI input for functionality in the obvious way, by pro- gramming a function for it and then verifying that the function executes when you activate the input. To program a GPI input, navigate to S YSTEM >...
Page 249: Section 5 Troubleshooting
Particularly if you are using a long run of coaxial cable between the 8500 and the exciter, a ground loop may inject noise into the exciter’s composite input—especially if the exciter’s input is unbalanced. The Orban CIT25 Composite Isolation Trans- former can almost always cure this problem.
Page 250: Audible Distortion On-Air
Because of its 64 kHz base sample rate, the output bandwidth of the 8500’s FM channel processing is slightly higher (16.5 kHz) than that of Orban processors using 32 kHz base sample rate. The signal path to the transmitter must be essentially flat to 16.5 kHz to take advantage of the 8500’s excellent peak control at its digital and...
Page 251: Audible Noise On Air
STL may only be 70-75 dB. In this case, it is wise to use an Orban studio level control device like the 8200ST Stu- dio AGC to perform the AGC function prior to the STL transmitter and to control the...
Page 252: Whistle On Air, Perhaps Only In Stereo Reception
TROUBLESHOOTING ORBAN MODEL 8500 STL's peak modulation. This will optimize the signal-to-noise ratio of the entire transmission system. An uncompressed digital STL will perform much better than any analog STL. (See Studio-Transmitter Link, starting on page 1-14.) Whistle on Air, Perhaps Only in Stereo Reception The most likely cause is oscillation in the analog input or output circuitry.
Page 253: Shrill, Harsh Sound
OPTIMOD-FM DIGITAL TROUBLESHOOTING tuned transmitter can exhibit an asymmetrical passband that will greatly increase crosstalk into subcarriers. Amplitude modulation of the carrier that is synchronous with the program (“syn- chronous AM”) can cause program-related crosstalk into subcarriers. Synchronous AM should be better than 35 dB below 100% modulation as measured on a syn- chronous AM detector with standard FM de-emphasis (50μs or 75μs).
Page 254: System Will Not Pass Emergency Alert System ("Eas" Usa Standard) Tones At The Legally Required Modulation Level
First, verify that a problem really exists by using a second frequency-measuring de- vice and/or verifying the problem with a monitoring service. If the problem is real, contact Orban Customer Service for a crystal replacement; there is no frequency trim available.
Page 255: Loudness Drops Momentarily During Hd Radio Analog/Digital Crossfades
The 8500FM can be upgraded to an 8500 in the field by installing the plug-in control module contained in the 8500UPG/HD upgrade kit, which can be purchased from your Orban dealer. General Dissatisfaction with Subjective Sound Quality The 8500 is a complex processor that can be adjusted for many different tastes.
Page 256: Security Passcode Lost (When Unit Is Locked Out)
TROUBLESHOOTING ORBAN MODEL 8500 Security Passcode Lost (When Unit is Locked Out) Please see If You Have Forgotten Your All-Screens Passcode on page 2-41. Connection Issues between the 8500 and a PC, Modem, or Net- work • User Interface Slowdown: The more user presets you make, the more slowly the 8500 will respond to front-panel commands.
Page 257: You Cannot Access The Internet After Making A Direct Or Modem Connection To The 8500
OPTIMOD-FM DIGITAL TROUBLESHOOTING C) Ensure that the null modem cable is connected to the 8500’s serial connector. • If your Modem Connect does not work: A) Ensure that the modem cables and phone lines are connected properly. B) Check that you have entered the correct phone number for connection. C) Check that you have entered the passcode correctly on the 8500 and the pass- code has also been entered correctly on your PC.
Page 258: Os-Specific Troubleshooting Advice
5-10 TROUBLESHOOTING ORBAN MODEL 8500 OS-Specific Troubleshooting Advice Troubleshooting Windows 2000 Direct Connect: If you are having trouble establishing a connection, check your New Connection’s properties to make sure they are set up correctly: A) Click “Start / Programs / Accessories / Communications / Network and Dialup Connections”...
Page 259: Troubleshooting Windows 2000 Modem Connect
5-11 OPTIMOD-FM DIGITAL TROUBLESHOOTING you already set this speed when you configured your PC ports, you shouldn’t have this problem. The 8500 communicates at 115200 bps. COM ports on some older PCs are incapable of communications at this rate and may not work reliably. Most newer PCs use 16550-compatible UARTS, which support the 115200 bps rate.
Page 260: Troubleshooting Windows Xp Direct Connect
5-12 TROUBLESHOOTING ORBAN MODEL 8500 J) Set “Type of dial-up server I am calling” to “PPP: Windows 95 / 98 / NT4 / 2000, Internet.” K) Select the “Settings” button and make sure all PPP settings are unchecked. Then click “OK.”...
Page 261: Troubleshooting Windows Xp Modem Connect
5-13 OPTIMOD-FM DIGITAL TROUBLESHOOTING H) In “This connection uses the following items,” select “Internet Protocol (TCP/IP)” and then click the “Properties” button. The “Internet Protocol (TCP/IP) Properties” window opens. I) Choose “Obtain an IP address automatically” and “Obtain DNS server address automatically”...
Page 262: Troubleshooting Ic Opamps
Technical Support If you require technical support, contact Orban customer service using the informa- tion found at http://www.orban.com/contact/. Be prepared to describe the problem accurately. Know the serial number of your 8500 ⎯ this is printed on the rear panel of the unit.
Page 263: S Hipping I Nstructions
Returned units will be returned C.O.D. if the unit is not under warranty. Orban will pay return shipping if the unit is still under warranty. In all cases, the customer pays transporta- tion charges to the factory (which are usually quite nominal).
Page 265: Technical Data
OPTIMOD-FM DIGITAL TECHNICAL DATA Section 6 Technical Data Specifications It is impossible to characterize the listening quality of even the simplest limiter or compressor based on specifications, because such specifications cannot adequately describe the crucial dynamic processes that occur under program conditions. There- fore, the only way to evaluate the sound of an audio processor meaningfully is by subjective listening tests.
Page 266: Installation
TECHNICAL DATA ORBAN MODEL 8500 Installation Delay Defeatable Analog FM Processing delay: 0.000015625 to 8.192 seconds for the 8- seconds board and 16.384 seconds for the 16-second board, adjustable in one-sample increments at 64 kHz sample rate to allow the delays of the analog and digital paths in the HD Radio system to be matched at the receiver output.
Page 267 OPTIMOD-FM DIGITAL TECHNICAL DATA Digital Audio Input Configuration: Stereo per AES3 standard, 24 bit resolution, software selection of stereo, mono from left, mono from right or mono from sum. Sampling Rate: 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz automatically selected. Connector: XLR-type, female, EMI-suppressed.
Page 268 TECHNICAL DATA ORBAN MODEL 8500 Composite Baseband Output Configuration: Two outputs, each with an independent software-controlled output level control, output amplifier and connector. Source Impedance: 0Ω voltage source or 75Ω, jumper-selectable. Single-ended, floating over chassis ground. Load Impedance: 37Ω or greater. Termination not required or recommended.
Page 269 OPTIMOD-FM DIGITAL TECHNICAL DATA Remote Computer Interface Supported Computer and Operating System: IBM-compatible PC running Microsoft Win- dows® 2000 (SP3 or higher) or XP. Configuration: TCP/IP protocol via direct cable connect, modem, or Ethernet interface. Suitable null modem cable for direct connect is supplied. Modem and other external equipment is not supplied.
Page 270: Circuit Description
Shipping Weight: 40 lbs. / 18.1 kg Warranty Two Years, Parts and Service: Subject to the limitations set forth in Orban / CRL’s Stan- dard Warranty Agreement (page 1-26). Because engineering improvements are ongoing, specifications are subject to change with- out notice.
Page 271: Control Circuits
2 seconds until the DSP code download has finished. If you hear a 2-second audio mute on air, you can assume that the 8500 has rebooted for some reason. Be prepared to convey this fact to Orban customer service if you call for technical assistance.
Page 272: Input Circuits
Located on base board A remote interface connector and circuitry implements remote control of certain operating modes; OPTIMOD-FM 8500 has eight remote contact closure inputs. A valid remote signal is a momentary pulse of current flowing through remote signal pins. Current must flow consistently for 50msec for the signal to be inter- preted as valid.
Page 273 OPTIMOD-FM DIGITAL TECHNICAL DATA and DC-biases the signal. This circuit feeds an RC low-pass filter that applies the balanced signal to the analog-to-digital (A / D) converter. Note that the small RFI “tee” filter assemblies connected to the input and output connectors are socketed and user-replaceable.
Page 274: Output Circuits
6-10 TECHNICAL DATA ORBAN MODEL 8500 Output Circuits This circuitry interfaces the DSP to the analog and digital audio outputs. The digital audio from the DSP is transmitted to the digital-to-analog converter (D / A) and out- put sample rate converter (SRC). The digital-to-analog (D / A) converter converts the digital audio words generated by the DSP to analog audio.
Page 275 6-11 OPTIMOD-FM DIGITAL TECHNICAL DATA circuitry and also helps implement independent de-emphasis settings between the analog and digital outputs. The buffered and optionally de-emphasized output of IC204 is applied to IC207, a balanced output line driver. This driver emulates a floating trans- former;...
Page 276: Dsp Circuit
During system initialization, the SC520 queries the DSP hardware about its opera- tional status and will display an error message on-screen if the DSP fails to initialize normally. Please note any such messages and be ready to report them to Orban Cus- tomer Service.
Page 277: Power Supply
6-13 OPTIMOD-FM DIGITAL TECHNICAL DATA rives the +3.3 V supply for the DSP chips from the +RAW unregulated system volt- age, while IC802 creates a +1.2 V regulated supply from +RAW. Power Supply Warning! Hazardous voltages are present in the power supply when it is connected to the AC line.
Page 278 6-14 TECHNICAL DATA ORBAN MODEL 8500 Microsoft disk operating system for IBM-compatible PC digital signal processor (or processing). May also refer to a special type of microprocessor optimized for efficiently executing arithmetic. European Broadcasting Union Emergency Broadcasting System (U.S.A.) electromagnetic interference...
Page 279: Parts List
Consult the factory if the listing of a part includes the note “selected” or “realignment required.” Orban normally maintains an inventory of tested, exact replacement parts that can be supplied quickly at nominal cost. Standardized spare parts kits are also available.
Page 280: Base Board
6-16 TECHNICAL DATA ORBAN MODEL 8500 Base Board BASE BOARD PART # DESCRIPTION COMPONENT IDENTIFIER SUBASSEMBLY FLAT CABLE- 42008.020Q 40P- 2"" 16013.000.01 HEATSINK, CLIP ON TO 220 RESISTOR, METALFIM, 1/8W, R28, 30, 33, 35, 37, 39, 44, 46, 48, 49, 50, 20040.604.01...
Page 281: Cpu Module
6-17 OPTIMOD-FM DIGITAL TECHNICAL DATA BASE BOARD PART # DESCRIPTION COMPONENT IDENTIFIER 24979.000.01 IC, BAT54C-7 D13, 14, 15, 16, 17 24982.000.01 IC, 74HC4051M 24983.000.01 IC, 7064STC100-10 24984.000.01 IC, LP2987IM-5.0 25008.000.01 IC, PS2506-4 U10, 12 LED, RED/GREEN, BI- 25112.001.01 CLR/POLR CONNECTOR, RIGHT ANGLE, 27017.025.01 PC BOARD MOUNT, 25P IC, SOCKET, DIP, 18 PIN,...
Page 282 6-18 TECHNICAL DATA ORBAN MODEL 8500 CPU MODULE PART # DESCRIPTION COMPONENT, IDENTIFIER 20128.022.01 RESISTOR, 22Ω 1% 0805 R5, R6 20128.332.01 RESISTOR, 33.2Ω,0805 R10, R11, R14 20128.499.01 RESISTOR, 49.9Ω 1% 0805 R19, R20, R21, R22, R23 20129.160.01 RESISTOR, 160Ω 1% 0805 R24, R25 20129.330.01...
Page 283: Rs-232 Board
6-19 OPTIMOD-FM DIGITAL TECHNICAL DATA CPU MODULE PART # DESCRIPTION COMPONENT, IDENTIFIER TSSOP 24653.000.01 IC PWRST MIC8114 SOT143 24670.000.01 IC 10 / 100BT NIC NATIONAL 24965.000.01 IC,74ALVC164245DGG U7, U8, U9 IC MICROPROCESSOR 24972.520.01 ELANSC520 BGA388 27306.000.01 CONN RJ45 PCMT W / MAGS 27370.040.01 CONN SCKT PC104 40PIN 27370.064.01...
Page 284: Power Supply
6-20 TECHNICAL DATA ORBAN MODEL 8500 Power Supply POWER SUPPLY PART # DESCRIPTION COMPONENT IDENTIFIER 10012.404.01 SCREW MS SEM P / P 4-40 X 1 / 4 TRANSISTOR, MOUNTING KIT, TO 15025.000.01 HW1, HW2, HW3, HW4, HW5 LED MOUNT, 1 POSITION, 0.240"...
Page 285: Input/Output (I/O) Board
6-21 OPTIMOD-FM DIGITAL TECHNICAL DATA POWER SUPPLY PART # DESCRIPTION COMPONENT IDENTIFIER CONNECTOR, HEADER, DOUBLE 27421.010.01 ROW , 23", 2 X 5 CONNECTOR, HEADER, 3-PIN, 27426.003.01 J6 (OPTIONAL FAN CONNECTOR) SINGLE ROW HEADER, STR, DOUBLE ROW, 27451.003.01 PCMOUNT HEADER, STR, DOUBLE ROW, 27451.004.01 PCMOUNT HEADER, STR, DOUBLE ROW,...
Page 286 6-22 TECHNICAL DATA ORBAN MODEL 8500 INPUT/OUTPUT BOARD PART # DESCRIPTION COMPONENT, IDENTIFIER RESISTOR THIN FILM 1/8W R110, 125, 237, 243, 244, 406, 407, 409, 20124.100.01 1% 1206 10K 413, 414, 700, 704, 705 RESISTOR, THIN FILM, 1/8W, 20124.200.01 R402, 404, 417, 418 1%, 20.0K...
Page 287 6-23 OPTIMOD-FM DIGITAL TECHNICAL DATA INPUT/OUTPUT BOARD PART # DESCRIPTION COMPONENT, IDENTIFIER 1206 CAPACITOR, SMD1206, C109, 110, 115, 116, 411, 412, 512, 518, 21138.247.01 4700PF, 50V, 5% 526, 531 C111, 118, 119, 120, 121, 123, 124, 125, 126, 127, 128, 202, 203, 211, 212, 214, 215, 233, 302, 303, 306, 309, 404, 407, 410, 500, 501, 502, 510, 513, 522, 523, 527, 528, 532, CAPACITOR, X7R, 0.1UF, 10%,...
Page 288 6-24 TECHNICAL DATA ORBAN MODEL 8500 INPUT/OUTPUT BOARD PART # DESCRIPTION COMPONENT, IDENTIFIER 24858.000.01 IC, SO/14, SMT IC604 24900.000.01 IC, HEX INVERTER, SMT IC603, 707 24924.000.01 IC CSS3310KS IC203 24951.000.01 IC HC151 8CH MUX SOIC16 IC708, 709 24957.000.01 IC, PCM1704U IC300 24958.000.01...
Page 289: Dsp Board (Pre-V3)
6-25 OPTIMOD-FM DIGITAL TECHNICAL DATA INPUT/OUTPUT BOARD PART # DESCRIPTION COMPONENT, IDENTIFIER 29532.156.01 IND 560UH 10% 370MA L600, 601 INDUCTOR, SELECTED, 29707.002.01 L300 3.501mh INDUCTOR, SELECTED, 29707.003.01 L301 3.39mh 21174.000.01 CAPACITOR .047 1206 X7R C400, 401 DSP Board (Pre-V3) DSP BOARD (PRE-V3) PART # DESCRIPTION COMPONENT IDENTIFIER...
Page 290 6-26 TECHNICAL DATA ORBAN MODEL 8500 DSP BOARD (PRE-V3) PART # DESCRIPTION COMPONENT IDENTIFIER C773, 774, 775, 776, 777, 778, 21146.310.01 CAPACITOR, .01uf, 0805, 10% 779, 780, 781782, 783, 784, 785, 833, 834, 835, 836, 837, 838840 C200, 201, 232, 737, 738, 767, 21171.105.01...
Page 291: Dsp Board (V3)
6-27 OPTIMOD-FM DIGITAL TECHNICAL DATA DSP BOARD (PRE-V3) PART # DESCRIPTION COMPONENT IDENTIFIER OSCILLATOR-CRYSTAL CLOCK- 28083.000.01 IC804 27MHZ-3 VOLT 29504.150.01 INDUCTOR-2A-PE53113 L700 29512.000.01 CHOKE-SHIELDED-1670-1; 25 L702 29527.000.01 INDUCTOR FIT44-4 L701 44102.100.02 ASSEMBLY EPLD 8500 DSP IC503 IC503 44103.100.02 ASSEMBLY EPLD 8500 DSP IC603 IC603 R806, R807, R808, R809, R810, 20128.022.01.1...
Page 292 6-28 TECHNICAL DATA ORBAN MODEL 8500 DSP BOARD (V3) PART # DESCRIPTION COMPONENT IDENTIFIER CONNECTOR HEADER DOUBLE ROW 27421.010.01 J700, J703, J802 23" 2 X 5 42008.020.03 FLAT CABLE ASSEMBLY 40P 2" J701, J702 29512.000.01 CHK SHIELD 1670-1 250uH L100 24333.000.01...
Page 293: Interface Board
6-29 OPTIMOD-FM DIGITAL TECHNICAL DATA DSP BOARD (V3) PART # DESCRIPTION COMPONENT IDENTIFIER C441, C442, C451, C452, C461, C462, C471, C472, C581, C582, C583, C584, C585, C586, C587, C588, C589, C591, C592, C593, C594, C595, C596, C597, C598, 21171.105.01 CAPACITOR 1uf X7R 0805 C599, C701, C702, C809, C810, C811, C812, C813, C814, C901, C902, C903, C947, C948, C949,...
Page 294: Headphone Board
6-30 TECHNICAL DATA ORBAN MODEL 8500 INTERFACE BOARD PART # DESCRIPTION COMPONENT IDENTIFIER R145, R146, R147, R148, R149, R150, R151, R152, R153, R154, R155, R156, R157, R158, R159, R160, R161, R162, R163, R164, R201, R208 C100, C101, C102, C203, C204, C205, C206, CAPACITOR, X7R, 0.1UF, 10%,...
Page 295: Encoder Board
6-31 OPTIMOD-FM DIGITAL TECHNICAL DATA HEADPHONE BOARD PART # DESCRIPTION COMPONENT IDENTIFIER CAPACITOR, NPO, 100PF, 1%, 21142.000.01 C2, C4 0805 CAPACITOR, METALIZED 21445.510.01 C1, C3 POLYESTER, 1.0UF, 50V, 5% 24025.000.01 IC, BUF634P, DIP8 U2, U3, U4 24960.000.01 IC, OPA2134UA JACK, SOCKET, 1/4" PHONE, 27090.000.01 RIGHT ANGLE IC, SOCKET, DIP, 8 PINS,...
Page 296: Technical Data
6-32 TECHNICAL DATA ORBAN MODEL 8500 LCD CARRIER BOARD PART # DESCRIPTION COMPONENT IDENTIFIER 21112.282.01 CAPACITOR, CERAMIC, 0.0082UF, 1KV, 10% 22106.000.01 DIODE, SMCJ26C, TRANZORB 22209.000.01 DIODE, SHOT 1A, 60V, SMD D1, D2 24758.000.01 LCD BACKLIGHT DRVR/CCFT 25409.000.01 LCD DISPLAY 320 X 240 LCD1 27420.002.01...
Page 297: Top View
6-33 OPTIMOD-FM DIGITAL TECHNICAL DATA Schematics and Parts Locator Drawings These drawings reflect the actual construction of your unit as accurately as possible. Any differences between the drawings and your unit are probably due to product improvements or production changes since the publication of this manual. If you intend to replace parts, please read page 6-15.
Page 298: Function Description
6-34 TECHNICAL DATA ORBAN MODEL 8500 Function Description Drawing Page Digital I/O Schematic 4 of 6 6-55 Control and Miscellaneous Schematic 5 of 6 6-56 Interface and Power Distribution Schematic 6 of 6 6-57 DSP Board DSP Chips; Local +3.3V regulator.
Page 299 6-35 OPTIMOD-FM DIGITAL TECHNICAL DATA POWER RS232 INPUT/OUTPUT SUPPLY BOARD BOARD (VERTICAL MOUNT) BASE BOARD MODULE INTERFACE BOARD (located between CPU module and POWER base board) TRANSFORMER DISPLAY ASSEMBLY HEADPHONE BOARD...
Page 300: Drawing
6-36 TECHNICAL DATA ORBAN MODEL 8500 Base Board Parts Locator Drawing (for schematic 62165.000.06)
Page 301 6-37 OPTIMOD-FM DIGITAL TECHNICAL DATA +5VD +RAW SD(0..15) FROM POWER SUPPLY 2-1A, 1-5A TV11 TV12 TV13 TV14 +5VD /GPIOWR 74ACT245DW 2-1A, 1-5D SIN2 /GPIORD 2-1A, 1-5D +5vD SOUT2 /FP_BUSEN 2-1B /RTS2 FPLED1 FP_D0 4-2B /CTS2 FPLED2 FP_D1 +RAW 4-2B DISPLAY FP_D2 2-1D AUX_COMM...
Page 302 6-38 TECHNICAL DATA ORBAN MODEL 8500 /MEMCS16 2-1B /MEMWR 2-1B /MEMRD 2-1B /SMEMWR 3-7C /SMEMRD 3-7C /SBHE TV66 /GPIOCS 2-1B /GPIOCS16 2-1B /GPIOWR 3-6D, 2-1A /GPIORD 3-6D, 2-1A +5VD RSTDRV 3-7C, 2-1B GPRDY TV67 GPAEN JTAG_TRIG 2-1A, 3-7C TV85 GPTC...
Page 303 6-39 OPTIMOD-FM DIGITAL TECHNICAL DATA +RAW +15V LP2987IM-5.0 2.00K Plus15V N.C. OUTPUT INPUT 75.0 Ω 75.0 Ω 1N4148 Plus15V SENSE /SHUTDOWN /ERROR DELAY Vcc_PSM +RAW 10.0K 332K 75.0 Ω 1N4148 Minus15V 14.0K 10.0K DGND BAT54C 74HC4051M PMA0 BAT54C PMA1 Plus5VA PMA2 10.0K 10.0K...
Page 304 6-40 TECHNICAL DATA ORBAN MODEL 8500 FP_ROW-COL 3-1B DISPLAY 3-6D +5VD /LED ENC1 3-1B 3-1B /ENCODER ENC2 3-1B 3-1B LED_PULSE PWRFAIL 3-1B 4-2C +5VD 74ACT245DW +5VD R104 ERROR R103 4-2C 10.0K /GPIORD 10.0K +5VD /AUX_BUSEN To Peripheral Board U13c U11g...
Page 305: Drawing
6-41 OPTIMOD-FM DIGITAL TECHNICAL DATA CPU MODULE Drawing 32200.000.02...
Page 306 6-42 TECHNICAL DATA ORBAN MODEL 8500 +3.3 VDC +3.3 VDC 160 ohm, 5%, 0805 160 ohm, 5%, 0805 4.7 k, 5%, CTS 745?083472J PCI_AD[0..31] PCI_AD31 PCI_AD31 AD31 AD31 Req4-n PCI_AD30 PCI_AD30 +3.3 VDC Req4-n AD30 AD30 Req3-n PCI_AD29 PCI_AD29 Req3-n...
Page 307 6-43 OPTIMOD-FM DIGITAL TECHNICAL DATA +5 VDC +5 VDC +5 VDC GP_SMemRd-n = GPA20 + GPA21 + GPA22 + GPA23 + GPA24 + GP_MemRd-n GPA23 GP_SMemWr-n Out0 GP_SMemWr-n = GPA20 + GPA21 + GPA22 + GPA23 + GPA24 + GP_MemWr-n GP_SMemRd-n Out1 +3.3 VDC...
Page 308 6-44 TECHNICAL DATA ORBAN MODEL 8500 MD[0..31] MA[0..12] MA12 MA12 MD15 MA12 MD31 MA12 DQ15 DQ15 MA11 MA11 MD14 MA11 MD30 MA11 DQ14 DQ14 MD31 MA10 MA10 MD13 MA10 MD29 MD31 MA10 A10/AP DQ13 A10/AP DQ13 MD30 MD12 MD28 MD30...
Page 309 6-45 OPTIMOD-FM DIGITAL TECHNICAL DATA +3.3 VDC 4.75 k, 5%, 0805 Trig/Trace AF25 AC13 Trig/Trace BR/TC AF23 AD24 BR/TC JTAG_TMS AE21 JTAG_TMS JTAG_TDI AE25 AF21 JTAG_TDI JTAG_TCK AE24 AD21 JTAG_TCK Ring2-n AD26 PIO31/Ring2-n DCD2-n AD25 PIO30/DCD2-n DSR2-n PIO29/DSR2-n CTS2-n PIO28/CTS2-n Ring1-n AC25 NC10...
Page 310 6-46 TECHNICAL DATA ORBAN MODEL 8500 +2.5 VDC +3.3 VDC +3.3 VDC +3.3 VDC +5 VDC Res3 Res2 Res1 Vin Vout Vccq 1 uf 10 uf, low ESR Vssq Vddq Vssq Vddq Gnd Gnd FSGnd FSVdd Vssq Vddq Vssq Vddq...
Page 311 6-47 OPTIMOD-FM DIGITAL TECHNICAL DATA RS232 Board Parts Locator Drawing (for schematic 62250.000.02)
Page 312 6-48 TECHNICAL DATA ORBAN MODEL 8500 +5VD 0.1uF Revision History: 62250.000.02 D1 & D2 Dual Footprints - No-stuff - 3.9uH ECO# DATE DESCRIPTION DONE CHECKED +5VD 3124 12/15/03 Created for 8500 project. DGND DGND 1 A. 1 A. 3179 11/02/04 Changed sockets;...
Page 313 6-49 OPTIMOD-FM DIGITAL TECHNICAL DATA 8300 POWER SUPPLY PARTS LOCATOR...
Page 314 6-50 TECHNICAL DATA ORBAN MODEL 8500 Plus15V Gnd Lift CR11 CR15 Mounting Mounting 1N4004 1N4004 Plus15V U3 +5v Reg +15v Reg 15025.000.01 15025.000.01 MC78M05CT MC78M15CT PlusRAW 0.1 F, 50v Plus5VA AGND (Monitor) Plus15V Chassis Ground Pigtail, 3" long (Monitor) Minus15V...
Page 315 6-51 OPTIMOD-FM DIGITAL TECHNICAL DATA INPUT/OUTPUT BOARD PARTS LOCATOR DIAGRAM...
Page 316 6-52 TECHNICAL DATA ORBAN MODEL 8500 LEFT ANALOG INPUT +15V R130 R131 J100 FEMALE L100 IC100A 3.65K 1.50K 1% FILTER 0.1% R100 L101 R101 OPA2134PA C108 E201 1.00K H 1200uH 4.99K C101 SHELL 1000PF C100 47PF 47PF 0.001UF 5%,100V -15V...
Page 317 6-53 OPTIMOD-FM DIGITAL TECHNICAL DATA +5VA R232 +5VA 10OHM 1% C201 1.0UF + C210 + C213 C211 C212 C214 C232 10UF 10UF 1.0UF 0.1UF 0.1UF 0.1UF IC203 C203 Butterworth AGND6 AGND6 AGND5 AGND5 0.1UF 50V C233 f 3dB = 40KHz R200 (SHT7) /OUTGAINCS...
Page 318 6-54 TECHNICAL DATA ORBAN MODEL 8500 R330 SPARES 110OHM C306 C307 -5VA 0.1UF 10UF R405 C304 IC300 IC308B C351 24.9K 1% COMP_DATA 33PF (SHT6) DATA -VCC 100UF 25V AGND7 5%,100V COMP_BCLK C305 (SHT6) BCLK REF DC AGND7 IC401B R300 R302...
Page 319 6-55 OPTIMOD-FM DIGITAL TECHNICAL DATA E550 PICSDI (SHT7) /AESINCS AES/EBU (SHT7) PICSDI AES/EBU (SHT7) DIGITAL PICSCK DIGITAL /AESOUT1CS (SHT7) INPUT R501 (SHT7) OUTPUT 1 TP502 PICSDO 49.9K (SHT7) L500 L504 J500 R513 J502 FERRITE FERRITE FEMALE 49.9K MALE T502 TP500 PICSCK C500 SC937...
Page 320 6-56 TECHNICAL DATA ORBAN MODEL 8500 +5VD IC703B IC703A IC707A /DIDO1EN (SHT5) 74ACT32 74HC14A 74ACT32 IC703C IC707C IC707B SIDO1EN (SHT5) 74HC14A 74ACT32 74HC14A +5VD +5VD IC706 IC708 MCKOUT1 (SHT5) D[0..7] 74HC374 /DOUTSRCS 74HC151 R704 10.0K 1% +5VD GAINDATAO +5VD (SHT3)
Page 321 6-57 OPTIMOD-FM DIGITAL TECHNICAL DATA IC603D 12.288MHZA (SHT7) IC603B E607 IC603E 18.432MHZA 74HC14A (SHT7) 8.192MHZA BASE BOARD (SHT2,5) CONNECTOR 74HC14A +5VD 74HC14A E609 R601 JP600 1.00K IC604A (SHT7) SOUT (SHT7) /RTS (SHT7) /CTS (SHT7) E612 IC603C R606 18.432MHZA 75OHM (SHT7) 74HC14A R602 R605...
Page 322 6-58 TECHNICAL DATA ORBAN MODEL 8500 DSP Board Parts Locator Drawing (for schematic 62245.000.07)
Page 323 6-59 OPTIMOD-FM DIGITAL TECHNICAL DATA IC101A IC102A IC103A IC104A DSP56367-150 DSP56367-150 DSP56367-150 DSP56367-150 AIN_DATA (SHT7) SDI0 SDO0 SDI0 SDO0 SDI0 SDO0 SDI0 SDO0 DIN_DATA1 (SHT7) SDI1 SDO1 SDI1 SDO1 SDI1 SDO1 SDI1 SDO1 SD01 SD00 SDO3/SDI2 SDO2/SD13 (SHT7) SDO3/SDI2 SDO2/SD13 SDO3/SDI2 SDO2/SD13 SDO3/SDI2...
Page 324 6-60 TECHNICAL DATA ORBAN MODEL 8500 HA[0..2] (SHT6) HD[0..7] (SHT6,7) IC101B IC102B IC103B IC104B DSP56367-150 DSP56367-150 DSP56367-150 DSP56367-150 (SHT6) (SHT6) (SHT6) (SHT6) DSPEN0 DSPEN1 DSPEN2 DSPEN3 (SHT6) (SHT6) (SHT6) (SHT6) HOREQ HOREQ HOREQ HOREQ HACK HACK HACK HACK (SHT6) (SHT6)
Page 325 6-61 OPTIMOD-FM DIGITAL TECHNICAL DATA IC101C IC102C IC103C IC104C IC105C DSP56367-150 DSP56367-150 DSP56367-150 DSP56367-150 DSP56367-150 AA0/RAS0 AA0/RAS0 AA0/RAS0 AA0/RAS0 AA0/RAS0 AA1/RAS1 AA1/RAS1 AA1/RAS1 AA1/RAS1 AA1/RAS1 AA2/RAS2 AA2/RAS2 AA2/RAS2 AA2/RAS2 AA2/RAS2 IC110C DSP56367-150 IC109C IC106C IC107C IC108C DSP56367-150 DSP56367-150 DSP56367-150 DSP56367-150 AA0/RAS0 AA1/RAS1 AA2/RAS2...
Page 326 6-62 TECHNICAL DATA ORBAN MODEL 8500 IC101D IC102D IC103D IC104D IC105D IC106D +3.3V +3.3V +3.3V +3.3V +3.3V +3.3V DSP56367-150 DSP56367-150 DSP56367-150 DSP56367-150 DSP56367-150 DSP56367-150 +3.3V +3.3V +3.3V +3.3V +3.3V +3.3V MISO MISO MISO MISO MISO MISO VCCD MOSI VCCD MOSI...
Page 327 6-63 OPTIMOD-FM DIGITAL TECHNICAL DATA IC502 IC503 74LVX4245 EPM7064AETC44-10 +3.3V +3.3V +5VB P1TDI C500 (SHT7) 0.1UF SA[3..9] R510 SD[0..7] 4.99K (SHT7) PTMS VCCINT DSP_SEL B to A BUSEN DSPEN7 (SHT3) DSPEN6 (SHT3) DSPEN5 (SHT3) DSPEN4 (SHT3) DSPEN3 (SHT3) DSPEN2 (SHT3) DSPEN1 DSPEN8 (SHT3)
Page 328 6-64 TECHNICAL DATA ORBAN MODEL 8500 IC603 +3.3V EPM7256ATC100-10 J601 18.432MHZA IC601 +3.3V 36.864MHZB 74LVC2244 24.576MHZB 33.8688MHZ MCLK DOUT_DATA1 IC807G +3.3V +3.3V DOUT_DATA2 EXTALA DOUT_DATA3 C809 (SHT2) EXTALB DOUT_DATA4 0.1UF (SHT2) FSYNCA DOUT_BCLK 74AHCT04 (SHT2) (SHT6) START FSYNCB DOUT_FCLK (SHT2)
Page 329 6-65 OPTIMOD-FM DIGITAL TECHNICAL DATA +1.8V C773 C774 C775 C776 C777 C778 C779 C780 C781 C782 C783 C784 C785 C786 C787 C788 C789 C790 C791 C792 C793 C794 C795 C796 C797 C798 C799 C800 C810 C811 0.01UF 0.01UF 0.01UF 0.01UF 0.01UF 0.01UF 0.01UF...
Page 330 6-66 TECHNICAL DATA ORBAN MODEL 8500 A[0..17] IC808 IC803 IC809 +3.3V +3.3V +3.3V +3.3V +3.3V +3.3V MCLK +15V -15V C201 R238 1.0UF 75.0OHM C234 C235 C232 0.1UF 0.1UF 1.0UF C203 C231 0.1UF C233 33PF 0.1UF 5%,100V +3.3V R201 R202 R203 8.45K...
Page 331 6-67 OPTIMOD-FM DIGITAL TECHNICAL DATA DSP BOARD PARTS LOCATOR DIAGRAM FOR SCHEMATIC 62375.000.xx.1...
Page 332 6-68 TECHNICAL DATA ORBAN MODEL 8500 DSP CONTROL INTERFACE CLOCK GENERATION & CPLD POWER DISTRIBUTION 62375.000.01.1_Sheet03.SchDoc 62375.000.01.1_Sheet07.SchDoc 62375.000.01.1_Sheet08.SchDoc EXTAL PW R_SY NC EXTAL EXTAL PW R_SY NC PW R_SY NC IRQB-N IRQB-N IRQB-N DSP_RST-N DSP_RST-N DSP_RST-N IC201_0_CS-N IC201_0_CS-N IC201_0_CS-N IC201_1_CS-N...
Page 333 6-69 OPTIMOD-FM DIGITAL TECHNICAL DATA IC201A IC202A IC203A IN_FCLK FSY NC FSY NC FSY NC FSR_0/PC1_0 FST_0/PC4_0 FSR_0/PC1_0 FST_0/PC4_0 FSR_0/PC1_0 FST_0/PC4_0 IN_BCLK BCLK BCLK BCLK SCKR_0/PC0_0 SCKT_0/PC3_0 SCKR_0/PC0_0 SCKT_0/PC3_0 SCKR_0/PC0_0 SCKT_0/PC3_0 HCKR_0/PC2_0/SRCK HCKT_0/PC5_0/STCLK HCKR_0/PC2_0/SRCK HCKT_0/PC5_0/STCLK HCKR_0/PC2_0/SRCK HCKT_0/PC5_0/STCLK IC201_SDI0_0 IC201_IC202_X IC202_IC203_X SDI0_0/SDO5_0/PC6_0 IC201_SDI0_0 (SHT7)
Page 334 6-70 TECHNICAL DATA ORBAN MODEL 8500 IC201B IC202B IC203B EXTAL EXTAL EXTAL EXTAL (SHT7) EXTAL EXTAL XTAL EXTAL XTAL EXTAL XTAL TM S TM S TM S TM S TM S TM S IC201_IC202 IC201_TDO IC202_IC203 IC201_IC202 IC203_IC204 IC202_IC203 PINIT/NM I0...
Page 335 6-71 OPTIMOD-FM DIGITAL TECHNICAL DATA LA1D[0..2 3] LA2D[0..2 3] IC411A IC412A IC203C IC204C +3.3V +3.3V IC4 01B IC4 02B LA1D3 LA2D3 LAD0/PA0 LALE LAD0/PA0 LALE C401 C441 C402 C442 LA1D4 LA2D4 LAD1/PA1 LAD1/PA1 LA1D5 LA2D5 LAD2/PA2 LCS0 LAD2/PA2 LCS0 0.01UF 1.0UF 0.01UF 1.0UF...
Page 336 6-72 TECHNICAL DATA ORBAN MODEL 8500 IC201D IC202D IC203D +3.3V +3.3V +3.3V C211 C212 C213 IO_GND IO_VDD IO_GND IO_VDD IO_GND IO_VDD 0.01UF 0.01UF 0.01UF IO_GND IO_VDD IO_GND IO_VDD IO_GND IO_VDD C231 C232 C233 IO_GND IO_VDD IO_GND IO_VDD IO_GND IO_VDD 0.01UF 0.01UF...
Page 337 6-73 OPTIMOD-FM DIGITAL TECHNICAL DATA IC601A RESET +5VB C604 74AHCT04 IC602A IC601B 0.1UF +5VB IC604 74VHC08 ISA_D0 74AHCT04 +5VB ISA_D1 ISA_D2 ISA_D3 IC602B IC603A IC601C ISA_D4 BIOW -N R604 ISA_D5 ISA_CM N ISA_CM N (SHT7) 10.0K ISA_D6 BIOR-N ISA_D7 74VHC08 74AC11D 74AHCT04 IC601D...
Page 338 6-74 TECHNICAL DATA ORBAN MODEL 8500 IC7 03 +3.3V C700 +3.3V IC201_0_CS-N IC209_SDO2_1 (SHT3) IC201_0_CS-N I0 (429) I0 (3) IC209_SDO2_1 (SHT2) C712 IC201_1_CS-N IC209_SDO2_3 (SHT3) IC201_1_CS-N I0 (426) I0 (6) IC209_SDO2_3 (SHT2) 0.1UF IC202_0_CS-N IC208_SDO5_3 TO I/O PCA (SHT3) IC202_0_CS-N...
Page 339 6-75 OPTIMOD-FM DIGITAL TECHNICAL DATA FROM POWER SUPPLY (NO-STUFF) TP 805 C8 27 IC8 01 0.01UF J8 01 C8 09 C8 19 SS/TRCK 1.0UF 0.1UF L801 (NO-STUFF) PVIN C8 31 C8 35 TP 803 1.5uH R8 03 2 OHM 10µF +3.3V +3.3V C8 01...
Page 340 6-76 TECHNICAL DATA ORBAN MODEL 8500 LA7D[0..2 3] LA8D[0..2 3] LA9D[0..2 3] IC917A +3.3V IC918A +3.3V IC919A +3.3V IC9 07B IC9 08B IC9 09B LA7D3 LA8D3 LA9D3 C907 C947 C908 C948 C909 C949 LA7D4 LA8D4 LA9D4 LA7D5 LA8D5 LA9D5 0.01UF 1.0UF...
Page 341 6-77 OPTIMOD-FM DIGITAL TECHNICAL DATA LCD CARRIER PARTS LOCATOR 32270.000...
Page 342 6-78 TECHNICAL DATA ORBAN MODEL 8500 Revision History: 62270.000.02 LCD1 ECO# DATE DESCRIPTION DONE CHECKED 3174 03/08/04 First Cut Released 3200 08/27/04 LCD Rotation, add ZIFs, Move LED Connector OPTIMOD Flex Jumper 8500 SERIES orban Sharp LCY-99073B-17 Four M-3 screws to LCD frame (copper plane on front, under the LCD).
Page 343 6-79 OPTIMOD-FM DIGITAL TECHNICAL DATA ENCODER BOARD PARTS LOCATOR HEADPHONE BOARD PARTS LOCATOR...
Page 344 6-80 TECHNICAL DATA ORBAN MODEL 8500 +15vA 49.9k 100pF, 100v 5% 10.0K T-filter AGND Left Right 1000pF,50v 10.0 BUF634PA +15vA OPA2134 Headphone Jack 1uF, 50v AGND CHASSIS S O C K E T From Interface Board 8-PIN T-filter -15vA 1000pF,50v -15vA Pin 4 is audio shield within cable.
Page 345 6-81 OPTIMOD-FM DIGITAL TECHNICAL DATA Revision History: 62100.000.04 ECO# DATE DESCRIPTION DONE CHECKED +5vD First Prototype (original mechanical spec.) 06/15/99 09/17/99 mechanical changes only Joy_X 11/30/99 Conn. change, & Combine w/ 32091; Release 32131 to Prod. 2788 01/24/2K Reduce Mounting Hole size 2788 04/29/01 Changes to Chassis Ground scheme...
Page 346 6-82 TECHNICAL DATA ORBAN MODEL 8500 FRONT-PANEL INTERFACE BOARD PARTS LOCATOR DRAWING...
Page 347 6-83 OPTIMOD-FM DIGITAL TECHNICAL DATA +5VD +3.3V R102 0 OHM +5VD +3.3V R103 0 OHM +3.3V R104 0 OHM IC101 R105 0 OHM R121 SD15 BSD15 IC100 10OHM +3.3V SD14 BSD14 Y100 TP100 SD13 BSD13 VccOsc VccCpu TP101 C102 R119 SD12 BSD12 BUFCLK...
Page 348 6-84 TECHNICAL DATA ORBAN MODEL 8500 +5VD +3.3V TP200 TP201 TP208 + C200 C208 C207 C206 C205 C204 C203 + C201 C202 C212 C213 C214 C215 C216 C217 C218 C219 10UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 10UF 1.0UF 0.1UF 0.1UF...
Page 349 DISTORTION CANCELLED COMPENSATOR COMPOSITE LIMITER CONTROLLER CLIPPER HF ENHANCER ULTRA 2-BAND COMPOSITE COMPRESSOR/LIMITER LATENCY DIVERSITY DELAY CONTROL COUPLING SWITCH MULTIPLEX POWER CONTROLLER HF LIMITER FEEDBACK LINE 2-BAND 2-BAND LIMITER COMPRESSOR LIMITER OPTIMOD-FM 8500 V2 SIMPLIFIED BLOCK DIAGRAM COMPRESSOR/LIMITER CONTROL COUPLING...
Page 350 6-86 TECHNICAL DATA ORBAN MODEL 8500...

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