Page 1 960L Multi-Channel Digital Effects System Service Manual...
Page 2 Copyright © 1999 Lexicon, Inc. All Rights Reserved Lexicon Inc. ● 3 Oak Park ● Bedford, MA 01730-1441 ● Tel (781) 280-0300 ● Customer Service Fax (781) 280-0499 Lexicon Part # 070-14826 Rev 0 Printed in the United States of America...
Page 3 960L Multi-Channel Digital Effects System Service Manual...
Page 4 960L Multi-Channel Digital Effects System Service Manual...
Page 5: Table Of Contents
Test Equipment............................ 1-1 Chapter 2 General Information ..............2-1 Periodic Maintenance ..........................2-1 Ordering Parts ............................2-1 Returning Units to Lexicon for Service ....................2-1 Chapter 3 Specifications................3-1 960L Mainframe............................3-1 LARC2 User Interface ..........................3-3 Chapter 4 Performance Verification............4-1 Initial Inspection and checkout: .......................
Page 6 960L Multi-Channel Digital Effects System Service Manual Chapter 6 Troubleshooting ................. 6-1 Diagnostics...............................6-1 Overview...............................6-1 960L Diagnostics: ..........................6-1 960L Diagnostic User Interface: ......................6-2 Audio I/O Algorithm (8 In - 8 Out): ......................6-3 Functional Diagnostic Test Scripts .......................6-3 960L Setup for Functional Diagnostic Tests ..................6-4 960L Power On Diagnostic Descriptions: .....................6-4...
Page 7 Lexicon Board ID ..............................7-10 Interface revision ........................... 7-10 Preview Word Clock Select ........................7-10 Clock Bus Interface..........................7-10 Clock Selection ..........................7-11 PLL Support ............................7-11 Phase-Locked Loop ........................... 7-11 PLL Detailed Description ........................7-12 Power Supply............................. 7-14 Analog Input card ..........................7-15 Overview.
Page 8 960L Multi-Channel Digital Effects System Service Manual Main Memory (sheet 2)........................7-41 Peripheral I/O Subsystems .........................7-44 Power Supply............................7-49 Register Summary ..........................7-50 Meter Bridge Module ..........................7-53 Chapter 8 - Parts List.................. 8-1 CHASSIS/MECHANICAL .........................8-1 I/O BPL ASSY,960L ..........................8-2 I/O CLK BD ASSY,960L ...........................8-3 AIN BD ASSY,960L..........................8-4...
Page 9: Chapter 1 Reference Documents, Required Equipment
Chapter 1 Refe r ence Documents, Required Equipment Reference Documents 960L Owner's Manual - Lexicon P/N 070-14353 or latest revision Software Release Notice, 960L - Lexicon P/N 070-14354 or latest revision Required Equipment Tools The following is a minimum suggested technician's tool kit required for performing disassembly, assembly and repairs: Clean, antistatic, well lit work area.
Page 10 960L Multi-Channel Digital Effects System Service Manual IBM compatible personal computer capable of running Windows 95/98, minimum 200mHz Pentium • Processor, 128MB memory, 4GB Hard Disk Drive, SVGA Monitor, Video card w/ 4MB memory, Mouse, 17” monitor, Windows 95 Keyboard, CD-ROM Drive, 3.5" High Density Floppy Disk Drive, and Windows 95/98 Operating System.
Page 11: Chapter 2 General Information
The 960L's cooling fan, located on the right side of the mainframe (facing the front) has a removable filter. It should be cleaned periodically with water and mild detergent, rinsed thoroughly, dried and reinstalled.
Page 13: Chapter 3 Specifications
Lexicon Chapter 3 Spec i fications 960L Mainframe Analog Input Eight, Female XLR Connectors 50Kohm, balanced Impedance Level (for 0 dbFS) +24dBu 20Hz-20KHz, ±1db Freq Response @48K 20Hz-40KHz, ±1db Freq Response @96K 24 bits A/D Conversion 128x oversampled >110 dB (20-20kHz) A/D Dyn Range <.002%...
Page 14 960L Multi-Channel Digital Effects System Service Manual 44.1 88.2 1.44 1.33 0.81 0.74 2.42 2.23 1.80 1.66 1.54 1.42 1.35 1.25 0.54 0.50 0.36 0.33 Synchronization TTL Word Clock Input * 75 Ohm, BNC self-terminating loopthru Low Z, BNC TTL Word Clock Output *...
Page 15: Larc2 User Interface
Lexicon Stereo Machines Four 2in x 5out Machines 5in x 5out Machines Stereo Machines 2in x 5out Machines 5in x 5out Machines Internal Hard Disk Storage Factory Programs 1000 User Registers Removable 3.5” Floppy Disk Storage User Registers Power Requirements***...
Page 16 960L Multi-Channel Digital Effects System Service Manual -6dBFS -0.5dBFS (Overload) Control Surface Faders 60mm throw, motorized, touch sensitive Two axis Joystick 29 (12 backlit) Dedicated Function Keys Soft Buttons Connectors 9-pin D-sub 960L 6-pin Mini-DIN Aux. PS/2 Keyboard concentric, 2.5mm Ext.
Page 17: Chapter 4 Performance Verification
2. Set the voltage level on the Variable AC power supply down to 0 volts then turn it ON. 3. Plug the 960L into the variable AC power supply and switch the main power switch on the rear panel to the ON position.
Page 18 2. Remove all DSP cards and the Midi card from the card cage in the front section of the 960L and place them in static shielding bags. 3. With the front of the 960L facing you, locate the solder side of connector J26 on the Left side of the NLX backplane.
Page 19 To gain easier access to the test points called out in the following tests, you will want to turn over the mainframe of the 960L so the bottom faces up or rest it on its side. All power connections to the backplane, Hard Drive, CD ROM Drive and 3.5" Floppy Drive have the same colored wiring code.
Page 20 +5VD, 6.6V, +/-18V, 24V, and 36V created on the card. 1. Before powering on the 960L for this test, remove the Analog Output card from the rear of the chassis. 2. Insert the I/O extender card and install the Analog Output card into the extender card.
Page 21: Audio/Functional Tests Setup
Audio/Functional Tests Setup*: 1. Power on the 960L with the main power switch and wait for the Power on diagnostics cycle to finish. 2. On the Larc2, press the Control Button. The Control Mode screen will appear at this time.
Page 22: I/O Gain Tests
I/O Gain Tests Analog In to Analog Out Audio Gain Test: 1. Connect a balanced XLR audio cable between the low distortion oscillator and the 960L # 1 Audio Input. 2. Connect a balanced XLR audio cable between the 960L # 1 Audio Output and the distortion analyzer.
Page 23: Digital In To Analog Out Frequency Response Test
Note: Change the Clock Source and Inputs to AES - see Audio/Functional Tests Setup. 1. Disable all Filters on the distortion analyzer 2. Connect a balanced XLR audio cable between the digital function generator and the 960L # 1-2 AES Input.
Page 24: Crosstalk Tests
Crosstalk Tests: Analog In to Digital Out Crosstalk Test: 1. Connect a balanced XLR audio cable between the low distortion oscillator and the 960L # 1 Audio Input. 2. Connect a balanced XLR audio cable between the 960L # 1-2 AES Output and the digital distortion analyzer.
Page 25: Functional Tests
960L creating a loop that the internal diagnostics requires to perform the test. 2. The 960L must first be placed into Diagnostic mode. This is done by powering on the 960L's main power switch on the rear panel, then immediately pressing and holding down the Program and Machine buttons on the LARC2 for 2 seconds.
Page 26 4. Slowly sweep the oscillator across the audio frequency band and verify that no pops, clicks, static, hash, and breakup in the audio. 5. Move the input and output cables to the next machine pair of the 960L (3,4) (5,6) and (7,8). 6. Repeat the test for each paired output.
Page 27: Lexicon Audio Precision Ate Summary
Lexicon Lexicon Audio Precision ATE Summary 4-11...
Page 28 960L Multi-Channel Digital Effects System Service Manual 4-12...
Page 29: Chapter 5 Service Notes
AC voltage input will be automatically sensed by the supply. Always be sure to inspect the rear panel of the 960L for indication of proper AC voltage setup and in case of the need to "switch" for the appropriate AC input voltage.
Page 30 960L Multi-Channel Digital Effects System Service Manual Replacement 1. Assemble the transducer as outlined in the assembly notes on DWG # 080-14234, ASSY DWG, MECH, MAIN BD, LARC 2...
Page 31: Female Rs-422 Wraparound Plug
Lexicon Female RS-422 Wraparound Plug:...
Page 32: Male Rs-422 Wraparound Plug
960L Multi-Channel Digital Effects System Service Manual Male RS-422 Wraparound Plug...
Page 33: Chapter 6 Troubleshooting
Diagnostics Overview The purpose of this document is to describe the diagnostic tests in the 960L. The diagnostics in the 960L are utilized to verify performance and functionality. The 960L and LARC2 are a high end, digital audio effects system. The 960L and LARC2 system is a multi-channel digital audio effects processor that can also be configured as a single channel processor.
Page 34: 960L Diagnostic User Interface
960L Multi-Channel Digital Effects System Service Manual 4. I/O Cage Cards The functional diagnostics test the hardware on the 960L that do not process audio, as well as the audio processing circuitry. The non-audio processing sections include the MIDI, clock ports, and serial communication on 960L.
Page 35: Audio I/O Algorithm (8 In - 8 Out)
If the cards are all recognized then the diagnostics can be run. There are 10 sets of diagnostic scripts available with the 960L. In addition custom scripts can be written and run from the floppy drive. The 10 built- in scripts are run by pressing the numbered button corresponding to the script desired to be run and then pressing the ENTER button.
Page 36: 960L Setup For Functional Diagnostic Tests
Script [space] a:\filename Where filename is the name of the custom script that has been created. The a:\ show the 960L the path to the custom script, where the script is located so it can find the script. This assumes the custom is in the root drive on the floppy.
Page 37: 960L Functional Diagnostic Descriptions
Lexchip3. The 960L functional diagnostics verify that the 960L can pass MIDI data from the Out to In ports, the two serial ports function, most of the reverb card functions, and the cards in the I/O cage can read and write to registers on their respective FPGA’s or CPLD.
Page 38 The 960L MIDI tests verify the MIDI In to MIDI Out path. The MIDI pattern 0xC0 0x00 is generated by the 960L and sent to the MIDI Out port. Using a 5 pin DIN to 5 pin DIN cable connected from the MIDI In to MIDI Out port the C0 00 data pattern is read and the test passes.
Page 39 Lexicon Tests the Dual Port RAM, associated with a specific Z80, via the 56301 This command performs a memory test on the dual port RAM (DPRAM) associated with a particular Z80 on a particular reverb card. Values of 0, 0xFF, 0xAA and 0x55 are written to the DPRAM via the 56301 then read back and confirmed An address test is also run that writes each address value into its associated memory location (address 29 has the value 29 written into it, address 30 has the value 30 written into it, etc...).
Page 40 960L Multi-Channel Digital Effects System Service Manual Notes: The following tests must pass before using this test: 56301DpramTest Z80BootTest Z80DpramTest Z80 Tests: Z80 Boot Test: The syntax for the Z80 Boot Test is: Z80BootTest CardId Z80ID [NumRepeats]. This tests the Z80's ability to execute code from the DPRAM This command resets the Z80, loads a small piece of code into the dual port RAM (DPRAM) then checks to see if the Z80 program ran.
Page 41 Lexicon This specifies which Z80 on the card to reset. Legal Values are 0 and 1. NumRepeats: This optional parameter specifies how many times to run the test. A value of 0 runs the test indefinitely (until a key is pressed). Dots are shown on the display to indicate that the test is still running.
Page 42 960L Multi-Channel Digital Effects System Service Manual 0x55 are tested. An address test is also run that writes each address value into its associated memory location (address 29 has the value 29 written into it, address 30 has the value 30 written into it, etc...). This test confirms that the Z80 can access all of its banked SRAM.
Page 43 Lexicon CardID: This number selects which reverb card to test. Legal values are 0 and 1, since only two reverb cards will be supported. If only one card is present use the number 0. Z80Id: This specifies which Z80 on the card associated with a pair of Lexichip3’s to test. Legal Values are 0 and 1.
Page 44 960L Multi-Channel Digital Effects System Service Manual TMIX Host Test: The syntax for the TMIX Host Port Test is: TMixHostPortTest CardId TMixID [NumRepeats]. This tests the 56301's ability to access a TMix's host port. This test confirms that the 56301 fully access the host port on specified TMix chip.
Page 45 Lexicon TMIX Ping Pong RAM Test: The syntax for the TMIX Ping Pong RAM Test is :TMixPingPongRamTest CardId TMixID [NumRepeats]. This tests a TMix's Ping Pong RAM In addition to testing the TMIX memory itself, this test also checks the 56301's ability to access the Ping Pong RAM in a TMIX chip.
Page 46 960L Multi-Channel Digital Effects System Service Manual 1 - TMIX 2 2 - TMIX 3 3 – Lexichip3 1 4 – Lexichip3 2 5 – Lexichip3 3 6 – Lexichip3 4 Device Port Assignments: TMIX 1 (DeviceID: 0): Interfaces with the IO backplane. Typically used for inputs.
Page 47 Lexicon Lexichip 3 (DeviceID: 5) 0 - Input: LEXI_3_SER_IN (from TMIX 3 port 2) 0 - Output LEXI_3_SER_OUT (to TMIX 3 port 6) 1 - Input: LEXI4_TO_LEXI3_SER (from Lexichip3 4 port 1) 1 - Output LEXI3_TO_LEXI4_SER (to Lexichip3 4 port 1)
Page 48: 960L Troubleshooting Tools
Descriptions custom test scripts can be implemented and individual tests can be performed to troubleshoot defective 960Ls. In order to perform these actions a PS/2 keyboard must be connected to the LARC2 prior to powering on the 960L. See these sections for information on how to use the keyboard to perform these functions.
Page 49: Global Commands
Lexicon This tool sends serial data bytes out the serial port This is a debugging tool that allows data to be sent out the serial port. Up to 15 bytes can be sent at a time. Set the Serial Port: The syntax to set the serial port is: SerialSetPort [port num].
Page 50: Listing Of Resident Scripts
The logfile command opens, closes and provides information in a log file. The Log File records all displayed information from the diagnostics into a text file. This is useful for reviewing the activities of an automated script file or reporting bugs. The logfile command can also be used to acquire the serial number of a 960L. Usage: When executed with no parameters, displays the current log file name.
Page 51 REM // 960L Diagnostics Test Script REM // REM // COPYRIGHT (C) 2000, LEXICON INC., ALL RIGHTS RESERVED. REM // NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FORM WITHOUT THE REM // EXPRESSED WRITTEN PERMISSION OF LEXICON INC.
Page 52 REM // 960L Diagnostics Test Script REM // REM // COPYRIGHT (C) 2000, LEXICON INC., ALL RIGHTS RESERVED. REM // NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FORM WITHOUT THE REM // EXPRESSED WRITTEN PERMISSION OF LEXICON INC.
Page 53 REM // 960L Diagnostics Test Script REM // REM // COPYRIGHT (C) 2000, LEXICON INC., ALL RIGHTS RESERVED. REM // NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FORM WITHOUT THE REM // EXPRESSED WRITTEN PERMISSION OF LEXICON INC.
Page 54 REM // 960L Diagnostics Test Script REM // REM // COPYRIGHT (C) 2000, LEXICON INC., ALL RIGHTS RESERVED. REM // NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FORM WITHOUT THE REM // EXPRESSED WRITTEN PERMISSION OF LEXICON INC.
Page 55 REM // 960L Diagnostics Test Script REM // REM // COPYRIGHT (C) 2000, LEXICON INC., ALL RIGHTS RESERVED. REM // NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FORM WITHOUT THE REM // EXPRESSED WRITTEN PERMISSION OF LEXICON INC.
Page 56: Larc2 Diagnostics
REM // 960L Diagnostics Test Script REM // REM // COPYRIGHT (C) 2000, LEXICON INC., ALL RIGHTS RESERVED. REM // NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FORM WITHOUT THE REM // EXPRESSED WRITTEN PERMISSION OF LEXICON INC.
Page 57: Debug Port
2. To enter the 'Menu' mode, press and hold the 'PROGRAM' + 'MACHINE' keys while powering on the unit. This mode is used primarily for programming the LARC2 Boot ROM and Program Flash Memory when the LARC2 is connected to a 960L mainframe. Refer to the 960L Diagnostics Descriptions document (P/N 010-13397) for more information.
Page 58: Power On Diagnostics
960L Multi-Channel Digital Effects System Service Manual POWER ON DIAGNOSTICS: There are two LED's located on the LARC2 Main Board which are used for displaying the status of the Power On Diagnostic tests that are performed before the LED's on the Meter Board or LCD display are enabled.
Page 59 Lexicon FFFFFFFF 1111 1111 1111 1111 1111 1111 1111 1111 AAAAAAAA 1010 1010 1010 1010 1010 1010 1010 1010 55555555 0101 0101 0101 0101 0101 0101 0101 0101 CCCCCCCC 1100 1100 1100 1100 1100 1100 1100 1100 33333333 0011 0011 0011 0011 0011 0011 0011 0011...
Page 60: Power On Self Tests
DRAM. The Serial Debug port, Keyboard 'AUX' port, and Timers (to setup the system clock) are initialized. The LCD display is turned on displaying the 'Lexicon' splash screen. From this point on, the software begins to continuously monitor for 'PROGRAM' + 'MACHINE' keys being pressed.
Page 61 Lexicon Yellow Green (0=OFF, 1=ON) 1. The YELLOW #6 LED was turned on to indicate a Keyboard Test failure because the External Keyboard was not detected. 2. The YELLOW #7 LED was turned on to indicate a Loop Back Test failure because the RS-232 Wraparound Plug was not detected.
Page 62 ⇒ If the 'PROGRAM' + 'MACHINE' keys were pressed during the Power On Diagnostics, the LARC2 will now request the Menu mode from the 960L Mainframe (when the LARC2 is connected to a 960L). The LCD display on the LARC2 will indicate the following: Requesting Menu Mode from 960L...
Page 63 Lexicon For detailed information on the Power On Diagnostics & Boot Sequence refer to the flowchart below: 6-31...
Page 64 960L Multi-Channel Digital Effects System Service Manual Power On Execute Power On Diagnostic Tests Begin monitoring continuously for PROGRAM + MACHINE keys being held Are the Is RS-422 PROGRAM + Wraparound Plug Else ENTER keys Installed? pressed? Enter Interactive Diagnostics Menu...
Page 65: Interactive Diagnostics
Lexicon INTERACTIVE DIAGNOSTICS: The following section describes the operation of the Interactive Diagnostic Tests. There are two ways that the 'Interactive Diagnostics' menu mode can be invoked, they are as follows: 1. Press & hold the 'PROGRAM' + 'ENTER' keys while powering on the LARC2, then releasing the 'PROGRAM' + 'ENTER' keys when a chase pattern appears on the Meter Board and Keypad LED's.
Page 66: Self Test
960L Multi-Channel Digital Effects System Service Manual NOTE: The top line of the 'Interactive Diagnostics' menu displays the voltage test readings raw value and its conversion to millivolts, line 2 displays the date and time of the Boot ROM build, and line 3 displays the Boot ROM and Application version (the actual text may vary).
Page 67: Lcd Test
Lexicon NOTE: This test requires an External Keyboard connected to the 'AUX' port. Otherwise the test will fail when an External Keyboard is not present. Diagnostic error messages are also sent to the Debug Port to indicate when a failure has occurred as shown in the example below.
Page 68: Led Test
960L Multi-Channel Digital Effects System Service Manual NOTE: Pressing the 'Lexicon' key will exit the test. Be sure the 'Lexicon' key is the last key pressed when testing the keys. The 'Lexicon' key can also be used to bypass the Fader Touch tests if necessary.
Page 69 Lexicon STEP #: 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4...
Page 70: Joystick Test
960L Multi-Channel Digital Effects System Service Manual Joystick Test: This test is used to verify the operation of the Joystick hardware and circuitry. This test has been designed to display the movement of the Joystick on the LCD display. During the test, the Joystick must be moved along the outside edges (farthest from the center) a minimum of two times.
Page 71: Fader/Motor Test
A/D converter, and verify that two (Max) values can be achieved. When the test is executed, the 'Lexicon' key is pressed & released until a Max value below 300, and a Max value above 600 is displayed on the LCD display.
Page 72: Memory Test
960L Multi-Channel Digital Effects System Service Manual Memory Test: This test performs a non-destructive memory test on all memory locations of the DRAM above the memory locations where the Boot ROM was copied (from C0008000h to C8000000h). The test first writes 55555555 (hex) into these memory locations of the DRAM, then the same memory locations are read to verify the data written in these locations is correct.
Page 73: Diagnostics Suite
Interactive Diagnostics one test after the other in the order listed below: 1. Self Test 2. LCD Test 3. KEY Test 4. LED Test 5. Joystick Test 6. Fader/Motor Test 7. Lexicon Test 8. Memory Test 6-41...
Page 74: Option Board Menu
960L Multi-Channel Digital Effects System Service Manual OPTION BOARD Menu: The following selections are available from the 'Option Board Menu' mode when the LARC2 Option Board is installed in the LARC2, and is connected to a debug terminal as shown below: NOTE: The top line of the 'Interactive Diagnostics' menu displays the date and time of the Boot ROM build, and line 2 displays the Boot ROM version (the actual text may vary).
Page 75 Lexicon F] Flash Operations: This menu selection is used for programming the Program Flash memory with the LARC2 application (Program App) and/or to program the Boot ROM (Burn Boot Flash). These options are available from the menu shown below: ************************************************...
Page 76: Miscellaneous Tests
If there is no PCMCIA Flash Memory card installed, it reports that fact and will not run any further. Then it checks the header of the PCMCIA Card for the existence of a legitimate 960L application, and warns if a header is present, with the option to quit or continue (destroying the cards contents). It also checks the size of the card, so that it will not attempt to test memory that isn't present.
Page 77 Lexicon Writing to 0x3c000000 Writing to 0x3c000002 Writing to 0x3c000004 Writing to 0x3c000008 Writing to 0x3c000010 Writing to 0x3c000020 Writing to 0x3c000040 Writing to 0x3c000080 Writing to 0x3c000100 Writing to 0x3c000200 Writing to 0x3c000400 Writing to 0x3c000800 Writing to 0x3c001000...
Page 78: Program Flash Data Checking
960L Multi-Channel Digital Effects System Service Manual This portion of the test verifies that all of the data lines on the PCMCIA Flash Memory card are functioning properly. The data lines are tested by writing/reading a walking 1's pattern into the first memory location.
Page 79: Chapter 7 Theory Of Operation
Since there are no cables connected to the motherboard, it can be easily removed. The NLX backplane is a custom NLX riser card that Lexicon developed to meet the needs of the integrated PC and its peripherals along with providing Lexicon specific functionality not possible utilizing other standard PC form factors.
Page 80: Nlx Interface (Sheet1)
PCI bus algorithms. In PCI parlance, Slot 0(IDSEL0) is the topmost PCI slot in the 960L and Slot 3(IDSEL3) is the bottommost slot. This is significant in that not all NLX motherboards support four (4) PCI slots. From a mechanical standpoint (i.e. least mechanical keep out constraints), the top slots are the most valuable in that the PCB in these slots can support more surface area (i.e.
Page 81: Dspbus Connectors (Sheet 8, 9)
DSPBUS Connectors (Sheet 8, 9) Communication between DSP cards and the IO cards in the system are provided over a Lexicon proprietary control and audio interface using a second set of PCI style connectors, J10-J13. Passive termination networks (R015/R109/R110, R104/R107/R108, R106/R111/R112) are used on TMIX_CKI, TMIX_CKI/2, TMIX_WCKI to maintain signal integrity (i.e.
Page 82: I/O Backplane
The 960L IO Backplane provides the interconnect between the DSP cards located on the NLX Backplane and the system clock and control, and audio IO cards which comprise a 960L effects system. It also connects, via ribbon cables, the PC motherboard RS232 serial and MIDI ports to the IOCLK PCB. The following system block diagram highlights its place within the 960L system.
Page 83: Circuit Description
The IO Backplane supports five, uniquely addressable card slots, which are accessed from the rear of the 960L chassis (Fig 1-1). With the exception of the slot address decodes, the interface signals to each slot is identical. However, because of mechanical and specific electrical constraints, not all cards can or should be randomly located.
Page 84 960L Multi-Channel Digital Effects System Service Manual and serial audio data and clock signals. R15, R16, and C1 provide filtering for the SYSTEM_RESET/ signal provided by the DSP cards. The cards in the IO backplane can also interrupt the DSP cards by asserting the IOBUS_INT/ signal.
Page 85: I/O Clock Card - Input/Output And Clock Generator Card
Sheet 2 Power Power is provided to the IO card in two ways. The +5v, +12v rails come directly from the 960L power supply via connector, J9. The –12v rail is supplied by the NLX backplane via connectors J11 (sheet 1).
Page 86: Larc2 Interface
960L Multi-Channel Digital Effects System Service Manual connected, both resistors get disconnected and the input becomes a bridging, high-impedance loop, allowing the line to be chained to other equipment and terminated elsewhere in the system. The input squarewave is applied to the high-impedance non-inverting input of line receiver U13 (75ALS180), that produces the buffered waveform BNC_WCIN.
Page 87 Lexicon forms most of the interface between the I/O backplane control, data, and clock buses and the on-board clock generating circuitry. Name Type Description Host Interfacse RESET/ INPUT Not used. ALL_MUTE/ OUTPUT Not Used. INPUT CHIP SELECT/ - 0 : this slot is being selected, 1 : not selected...
Page 88: Control Interface
PLL. Clock Bus Interface All digital audio clocking in the 960L system is derived from U2 and associated on-board circuitry. Clocks from U2 are buffered by U1 (74FCTT244 or 74ABT244) and driven onto the I/O backplane, which distributes them to other modules.
Page 89: Clock Selection
Logic within U2 that is involved with the operation of the PLL is described below. Phase-Locked Loop All clocks that are distributed to the digital audio systems in the 960L ultimately derive from the oscillator in the on-board PLL (sheet 3). The PLL consists of a Voltage-Controlled Oscillator (VCO, U10, MC12148), a Phase/Frequency Detector (PFD) implemented within CPLD U2, and an active filter formed by op-amp U6 and associated circuitry.
Page 90: Pll Detailed Description
960L Multi-Channel Digital Effects System Service Manual divided by two, if necessary, to form single-speed wordclock from double-speed input. A final multiplexer chooses the reference source to be applied to the PFD logic. When neither crystal oscillator is in use, they both get disabled under software control by bringing XTAL_EN low.
Page 91 (lags) by precisely this amount. It is this wordclock, which is almost perfectly aligned with the reference that is distributed for use throughout the 960L. The PLL wordclock that actually feeds the PFD has no visibility outside the CPLD.
Page 92: Power Supply
960L Multi-Channel Digital Effects System Service Manual quality of phaselock and proper operation of the audio systems in the 960L. If lock remains within tolerance and no LKERRDET pulse occurs for 50 msec, U5 times out and the system is considered to be in lock.
Page 93: Analog Input Card
4), bus interface fpga and connector (sheets 5,6) and on-board power conditioning (sheet 7). This card is plugged into the IO backplane which is accessed from the rear of the 960L chassis. The following system block diagram highlights its place within the 960L system.
Page 94: A/D Converter
960L Multi-Channel Digital Effects System Service Manual With a full-scale signal, the allowable additional input common-mode voltage range is at least +18dBu (+/- 8.7Vpeak), limited by the clipping level of U20. Unwanted hum and noise at the input are unlikely to reach such high levels, but for a single-ended input, half the signal is common mode at this level.
Page 95: Clock Interface
Lexicon Should only be set if the AKM5394 is used. Reserved CTLREG(4) DFS1 : AKM5394 DFS1 control signal. Setting is CTLREG(3) only significant if AKM5394 AD is used. DFS0. Double Speed Sampling Enable for AKM4393. CTLREG(2) CONV_RESET. Active High. AD converter reset control line. All converters are CTLREG(1) reset when asserted.
Page 96: Pin Descriptions
960L Multi-Channel Digital Effects System Service Manual TMIX_WCKI IOBUS_WCLK/ SDO0,2,4 *S0:1 S0:3 S0:5 S0:7 S0:1 S0:3 S0:5 S0:7 SDO1,3,5 S0:2 S0:4 S0:6 S0:8 S0:2 S0:4 S0:6 S0:8 I2S0,1,2,3 S1 : 1/3/5/7 S1 : 2/4/6/8 TMIX_WCKI IOBUS_WCLK/ SDO0,2,4 S1:1 S1:3 S1:5...
Page 97 Lexicon TMIX_CKI INPUT TMIX_CKI - master TMIX clock. All local clocks(I2S_FS/, I2S_64FS/, I2S_256FS) are derived from this clock and TMIX_WCKI. Input frequency is nominally 24.576Mhz or 22.5792Mhz for 48/96Khz and 44.1/88.2 sample rates respectively. TMIX_CKI/2 INPUT TMIX_CKI/2 - not used...
Page 98: Power Supply
960L Multi-Channel Digital Effects System Service Manual Power Supply Power conditioning for the Analog Input card involves local filtering and regulation of supplies from the backplane. The main 5VD from the backplane is used by the fpga and the digital sections of the A/D converters.
Page 99: Analog Output Card
(sheets 5,6) and on-board power conditioning (sheet 7). This card is plugged into the IO backplane, which is accessed from the rear of the 960L chassis. The following system block diagram highlights its place within the 960L system.
Page 100: Filter
960L Multi-Channel Digital Effects System Service Manual so equilibrium is achieved when U14 outputs are somewhat below the Vbe of Q3, although not quite 0. A slight positive equilibrium point is desirable to accomodate the asymmetrical tolerances of the +/-12V system supplies as well as the asymmetrical output capability of the OPA2134, with the objective of maximizing the voltage range available for the audio signal.
Page 101: Signal Polarity
Lexicon Relays for each pair of channels are energized by one transistor when software sets RLY_MUTE/ to a high logic level. Signal Polarity A positive digital value entering interface U1 from the backplane is converted to the corresponding positive value in the right channel of the D/A I2S stream, and its binary complement in the left channel. This makes U14.1 positive (U14.7 negative), U22.7 (CH1) negative, and U26.3 (J2.2) positive, so a positive digital input...
Page 102: Digital Audio Interface
960L Multi-Channel Digital Effects System Service Manual I2S_256FS is the master clock to the D/A converters, and is 256FS in single-speed mode and 128FS in double-speed mode. Source resistors in the clock lines reduce ringing due to reflections to provide proper clocking.
Page 103 Lexicon PWROK INPUT POWER OK - not used RESET/ INPUT RESET/ - 0 : not used ALL_MUTE/ INPUT ALL MUTE - 0 : forces I2S data to zero(digital mute) INPUT CHIP SELECT/ - 0 : this slot is being selected, 1 : not selected...
Page 104: Power Supply
960L Multi-Channel Digital Effects System Service Manual SDO2 INPUT TMIX Octal data. Received from TMIX2 Octal 8. Octal selection is determined by the octal select field in the FPGA control register(see register description for details) SDO3 INPUT TMIX Octal data. Received from TMIX2 Octal 9. Octal selection is...
Page 105 Lexicon Bias voltage VB is derived from both +/-12VSUP by switching transistors Q1,Q2 and associated diodes and capacitors. An ac coupled two-phase clock at wordclock rate drives the transistors with non-overlapping on- times creating a 24V squarewave to augment the +12V, which in a perfect pump would make VB=36V, neglecting losses.
Page 106: Aes Card
This section describes the theory of operation of the 960L AES card. Overview The 960L AES Card supports eight channels of AES digital audio I/O at 44.1KHz/48KHz and 88.2 KHz/96 kHz. The AES inputs are received using four Crystal CS8413 digital audio receivers and the outputs are driven with four CS8403A digital audio transmitters.
Page 107: Circuit Description
AES audio/data streams for errors, and the Reverb Card also accesses the AES card registers to perform the sequence required when locking the 960L sample clock to an AES input. The sequence is described in section 7 of this document.
Page 108: Fpga Control Register
960L Multi-Channel Digital Effects System Service Manual BASE+1E0 Crystal AES TX #4 BASE+1C0 Crystal AES TX #3 BASE+1A0 Crystal AES TX #2 BASE+180 Crystal AES TX #1 BASE+160 Crystal AES RX #4 BASE+140 Crystal AES RX #3 BASE+120 Crystal AES RX #2...
Page 109: Locking To The Aes Input Word Clock
Lexicon (not used) (not used) Enter word clock seek mode (see following high discussion) Drive clocks to Crystal receivers (see following high discussion) Locking to the AES Input Word Clock The procedure to derive the system word clock from an AES input stream is as follows: 1.
Page 110: Local Loopback Mode
Overview The 960L Reverb Card is a 128 channel, 24 bit audio DSP processor that is the central DSP resource in the 960L system. Up to three of these cards can be inserted into the PCI bus for mixing, effects, and other processing needs.
Page 111: Circuit Description
Figure 1-1 Reverb Card Block Diagram Circuit Description This section is a page by page description of the 960L Reverb Processor schematic. PCI Bus (sheet 1) The PCI bus is a 33 MHz, 32 bit multiplexed address/data bus that serves as the interface between the Reverb Card and the host Pentium processor.
Page 112 The 56301 has three timers that use the pins TIO0, TIO1, TIO2. TIO0 receives the PREVIEW_CLKS signal, which is a word clock signal that is sourced from any of the available word clock sources in the 960L. The timer measures this signal and the result is used by software to determine if the selected word clock frequency is acceptable.
Page 113 Lexicon T-MIX #2 (sheet 5) T-MIX #2 shown on sheet 5 sends serial digital audio to audio output cards on the I/O bus. These digital audio streams are formatted with eight audio samples per word clock. These audio streams can be probed on R146-R157, and if a scope is triggered on word clock it is possible to see the audio samples in these data streams.
Page 114: Startup Sequence
(IO_DS/), and read/write qualifier (IO_WR/). (The IO_RD/ signal is no longer used.) Only one of the Reverb Cards in a 960L can serve as the I/O Bus master, so all control signals are only driven if ENAB_IOBUS/ Is low, otherwise all I/O Bus outputs from the card are tri-stated. The ENAB_IOBUS/ signal is controlled by the Pentium host software through the 56301.
Page 115: Dsp 56301 Expansion Port Memory Map
The 56301 then receives commands from the host to detect which cards are resident on the 960L I/O bus. After reporting this information to the host processor through the PCI bus the 56301 is commanded by the host to initialize the cards resident on the 960L I/O bus.
Page 116 960L Multi-Channel Digital Effects System Service Manual (same for both Z80s) Address Resource $0 - $7FE 2K Dual Port SRAM $7FF Motherboard interrupt mailbox $3000 - $3BFF Lexichip #1 internal decodes $4000 - $7FFF 4 banks of 16K bank-swapped SRAM...
Page 117: Larc2
The LARC2 is the remote control unit for the Lexicon 960L Digital Effects System. LARC2 provides easy access to all of the 960L functions and parameters. A thin cable provides a direct link with the mainframe from up to 50 feet away or up to 1000 feet with an external12VDC power supply.
Page 118: Central Processor (Sheet 1)
960L Multi-Channel Digital Effects System Service Manual Central Processor (sheet 1) The system central processor is a highly integrated microprocessor that incorporates a 32-bit StrongARM RISC processor core, system support logic, multiple communication channels, an LCD controller, a PCMCIA controller, and general-purpose I/O ports.
Page 119: Main Memory (Sheet 2)
Lexicon Base Address SA-1100 LARC2 0x1800 0000 Static Bank Select 3 Configuration Register 0x1000 0000 Static Bank Select 2 LARC2 Registers 0x0800 0000 Static Bank Select 1 8 Mb Flash 0x0000 0000 Static Bank Select 0 Boot ROM Table 2-1 LARC2 Memory Map The bottom partition (0x0000 0000 to 0x3FFF FFFF) is dedicated to static memory devices (ROM, Flash, SRAM) and to the PCMCIA expansion bus area.
Page 120 960L Multi-Channel Digital Effects System Service Manual Read burst Generated by read buffer or DMA request. Read burst Generated by cache line fills or read buffer requests. Write single 1..4 bytes are written as specified by byte mask. Generated by write buffer or DMA request.
Page 121 Lexicon Read-Write timing CPU CLK MEM CLK SA_ADDR ROW + BANK SA_RAS SA_CAS Reads: SA_OE Mem DQ RD DATA Writes: SA_WE Mem DQ WR DATA MDCAS0 = 1100 0001 1111 0000 0111 1100 0001 1111 MDCAS1 = 1111 0000 0111 1100 0001 1111 0000 0111...
Page 122: Peripheral I/O Subsystems
960L Multi-Channel Digital Effects System Service Manual Boot Flash memory occupies address space: 0x0000 0000 to 0x0001 FFFF. Program Flash (U10, U13, U14, U16, sheet 2) The program Flash uses the PCMCIA socket 0 interface. It can also be addressed through CS1 address space.
Page 123 There are two 8-channel 10-bit Analog-To-Digital converters (TLV1548M) on the main board. One is used to get the position of the wiper arm on the 8 faders. The second takes care of the joystick, Lexicon button, and the 12-volt sense.
Page 124 5V range of the A/D. Since LARC2 can be powered from the 960L or from the optional Power Pack, 12 volts can vary. This provides software with a means to monitor the voltage for the motor drivers. The output waveform can then be adjusted accordingly.
Page 125 Piezo Transducer (sheet 5) A piezoelectric ceramic transducer disk is mounted flat on the pc board, under the Lexicon button. When the button is pressed, it not only makes contact with switch pattern SP47, it also produces flexure of the piezo element.
Page 126 960L Multi-Channel Digital Effects System Service Manual sampled 5000 times per second. The serial data is stored in parallel form in a memory block within the FPGA, where software can read it via the FPGA parallel port as necessary. PS/2 Keyboard Interface (sheet 7) The PS/2 port (J19) allows the user to connect a PS/2 compatible keyboard to LARC2.
Page 127: Power Supply
HOST connector J20 or from a dc source connected to the EXT. POWER jack J21. When connected to the regulated 12VDC supply in the 960L, the LARC2 voltage at J20 will be lower due to IR losses in the 9- pin cable, and this limits the length of cable that can successfully supply the operating current of 1-to-2 Amps.
Page 128: Register Summary
960L Multi-Channel Digital Effects System Service Manual LCD Backlight (sheet 7) The backlight built into the color LCD module is based on a Cold Cathode Fluorescent Lamp (CCFL), which requires high-voltage ac to operate. This voltage is generated by the inverter module mounted in the LCD display housing.
Page 129 Lexicon 1000 0702 PS/2STAT PS/2 Status Register 1800 0000 – 1800 0002 CS3REG CS3 Register 2000 0000 – 2000 FFFF PCMCIA socket 1 I/O space 2800 0000 – 2800 FFFF PCMCIA socket 1 attribute space 2C00 0000 – 2C00 FFFF PCMCIA socket 1 memory space 3000 0000 –...
Page 130 960L Multi-Channel Digital Effects System Service Manual 8004 006C HSDR HSSP data register 8004 0070 HSSR0 HSSP status register 0 8004 0078 HSSR1 HSSP status register 1 8005 0000 UT3CR0 UART 3 control register 0 8005 0004 UT3CR1 UART 3 control register 1...
Page 131: Meter Bridge Module
Lexicon 9004 0004 GPDR GPIO pin direction register 9004 0008 GPSR GPIO pin output set register 9004 000C GPCR GPIO pin output clear register 9004 0010 GRER GPIO rising-edge register 9004 0014 GFER GPIO falling-edge register 9004 0018 GEDR GPIO edge detect status register...
Page 133: Chapter 8 - Parts List
RESET SW TO NLX BPL (J21) 680-14306 CABLE,100,SCKT/SCKT,2X5C,18"L NLX CPU (COM2) TO I/O BPL (J6) 700-13965 RAIL,TOP/BOTTOM,960L REAR OF CHASSIS 700-13967 COVER,TOP/BOTTOM,960L 700-14406 FRAME,SUPP,AIR FILTER,4.46X3.6 701-13346 BRACKET,NLX PS,960L 701-13963 BRACKET,MTG,RACK,4U,960L 701-13968 BRACKET,SUPPORT,FAN,960L 701-13969 BRACKET,SUPPORT,CD/DISK,960L 701-13985 PLATE,EXPANSION,BLANK,960L 701-13986 PLATE,ACCESS,960L 701-14308 BRACKET,SUPPORT,STOP,FP,960L 701-14309 STOP,FP,960L 702-13959 PANEL,FRONT,960L...
Page 134: I/O Bpl Assy,960L
960L Multi-Channel Digital Effects System Service Manual PART NO. DESCRIPTION EFF■INACT REFERENCE 720-14405 AIR FILTER,4.3X3.5X.188,GRAY 740-09538 LABEL,S/N,CHASSIS,PRINTED CHASSIS, REAR 740-13573 LABEL,MFR ID,.9X.25,SILVER 740-14348 LABEL,WINDOWS NT,960L SIDE SUPPORT 750-13356 HD DRIVE,PROGRAMMED,960L 750-13390 PWR SUP,+3.3V/+-5V/+-12V,300W 750-13392 DRIVE,CD,IDE,32X,85MS,BLK 750-13393 DRIVE,FLOPPY,3.5",1.44MB,BLK 750-13950 CHASSIS,SUBASSY,960L 750-14031 PCB ASSY,PCI,AUDIO,MIDI...
Page 135: I/O Clk Bd Assy,960L
330-10527 ICSM,DIGITAL,74HC138,SOIC 500-13907 CONN,EURO,C,96P,abc,RECP,VERT 5 J1-5 510-13877 CONN,POST,.100,HDR,2X5MCG,LP J6,7 510-13942 CONN,POST,.100,HDR,2X20MCG,LP 2 J10,11 510-13993 CONN,POST,.100,HDR,2X8MCG,LP 510-13994 CONN,HDR,.200,4MC,SHRD I/O CLK BD ASSY,960L 202-09795 RESSM,RO,5%,1/10W,2.2K OHM R19,22,25 202-09873 RESSM,RO,5%,1/10W,10K OHM R2-4,27,30 202-09897 RESSM,RO,5%,1/10W,470 0HM 202-09899 RESSM,RO,5%,1/10W,47 OHM R1,16 202-10557 RESSM,RO,5%,1/10W,4.7K OHM R26,28,29,31,32...
Page 136: Ain Bd Assy,960L
960L Multi-Channel Digital Effects System Service Manual PART NO. DESCRIPTION EFF■INACT REFERENCE 340-11573 ICSM,LIN,NJM4580,DUALOPAMP,SOP 1 340-12111 ICSM,LIN,MC12148,VCO,LPWR,SOIC 1 345-12038 ICSM,INTER,75ALS180,DR/RC,SOIC U13-15 350-14373 ICSM,CPLD,960L,I/O CLK,V1.10 375-12110 ICSM,OPTO-ISOL,HCPL0601,SOIC 390-12978 CRYSTAL OSC,22.5792MHz,10PPM 390-12979 CRYSTAL OSC,24.576MHz,10PPM 430-10419 LEDSM,INNER LENS,RED 440-13906 FUSESM,.75A,RESETTABLE,.18X.13 2 PS1,2 500-05855 CONN,EURO,C,ROW a+b+c,MALE,RA 1...
Page 137: Aout Bd Assy,960L
U4-7 500-05855 CONN,EURO,C,ROW a+b+c,MALE,RA 1 510-11086 CONN,XLR,3FC,PCRA,LATCH,SMALL 8 J2-9 520-00941 IC SCKT,8 PIN,LO-PRO,TIN 641-11466 SCRW,TAP,#4X3/8,PNH,PH,BZ,TRI XLR (J2-9) TO PANEL 702-13976 PANEL,I/O,AIN,960L AOUT BD ASSY,960L 202-09794 RESSM,RO,0 OHM,0805 202-09795 RESSM,RO,5%,1/10W,2.2K OHM R20,21,46,87,152,153 202-09873 RESSM,RO,5%,1/10W,10K OHM R1-3,12,17 ■ 202-09899 RESSM,RO,5%,1/10W,47 OHM 02/17/00 R7-11,14 ■...
Page 138 960L Multi-Channel Digital Effects System Service Manual PART NO. DESCRIPTION EFF■INACT REFERENCE 203-12719 RESSM,THIN,1%,1/10W,2.00K OHM R89,93,98,101,105 R109,114,117,121 R125,130,133,137 R141,146,149 203-14296 RESSM,THIN,1%,1/10W,6.49K OHM R50,55,60,65,70,75 R80,85,92,99,108,115 R124,131,140,147 240-00608 CAP,ELEC,2.2uF,50V,RAD C13,14 240-09367 CAPSM,ELEC,10uF,25V,NONPOL,20% 16 C165-180 ■ 240-09786 CAP,ELEC,100uF,25V,RAD,LOW ESR 5 02/17/00 C11,12,18,21 C205 (across C28) ■...
Page 139: Aes Bd Assy,960L
500-05855 CONN,EURO,C,ROW a+b+c,MALE,RA 1 510-10881 CONN,XLR,3MC,PCRA,PLASTIC CMP 8 J2-9 520-00941 IC SCKT,8 PIN,LO-PRO,TIN 620-12428 LUG,#4,INT STAR,XLR GND J2-9 641-11466 SCRW,TAP,#4X3/8,PNH,PH,BZ,TRI XLR (J2-9) TO PANEL 702-13978 PANEL,I/O,AOUT,960L AES BD ASSY,960L ■ 202-09794 RESSM,RO,0 OHM,0805 06/06/00 R1,36,37,39,40,42 R43,45,46,88-95;C48 C52,56,60;FB12-19 ■ 202-09794 RESSM,RO,0 OHM,0805...
Page 140: Rvb Bd Assy,960L
960L Multi-Channel Digital Effects System Service Manual PART NO. DESCRIPTION EFF■INACT REFERENCE 330-13867 ICSM,DIGITAL,74VHC245,SOIC 345-14245 ICSM,INTER,CS8403A,XMTR,SOIC U10-13 345-14246 ICSM,INTER,CS8413,RCVR,SOIC U6-9 350-14205 ICSM,FPGA,XCS10-3,14X14,VQFP 350-14376 IC,SPROM,960L,AES,V2 430-10421 LEDSM,INNER LENS,GRN 470-12913 XFORMER,PULSE,AES,1:1,.2X.4SP TX2,4,6,8,10,12 TX14,16 490-02356 CONN,JUMPER,.1X025,2FCG W1-4 pins 2&3 500-05855 CONN,EURO,C,ROW a+b+c,MALE,RA 1...
Page 141: Nlx Cpu Bd Assy
701-14311 SHIELD,I/O,NLX CPU,~9.3X1.9"H RETAINER CLIPS TO PCB--2PLCS 750-14030 PCB ASSY,NLX CPU,2DIMM,10X8.25 1 750-14032 MODULE,SDRAM,32MB,100MHz, 750-14033 CPU KIT,CELERON,300MHz,FAN HS 1 PLUG IN FAN CONN TO J1 NLX BPL EXT BD ASSY,960L 500-13944 CONN,EDGE,2X60C,.050,VERT,PCI J20,21 510-13336 CONN,POST,.100,HDR,2X32P,LK,RA 2 J1,2 640-01701 SCRW,4-40X1/4,PNH,PH,ZN BRACKET MTG...
Page 142: Larc2
960L Multi-Channel Digital Effects System Service Manual LARC2: CHASSIS/MECHANICAL: MAIN HSG ASSY,LARC2 PART NO. DESCRIPTION EFF■INACT REFERENCE 120-14515 ADHESIVE,GLUE,HOT MELT,GP 1.135 CLIP TO FERRITE HOLDER 270-14401 FERRITE,FLAT CABLE,~.8X1.2,HW INVERTER & DISPLAY CABLE 453-14226 KEYPAD,MAIN,LARC2 453-14228 KEYPAD,SIDE,LARC2 530-02489 TIE,CABLE,NYL,.1"X4" 550-14035 KNOB,SLIDE,TANG,SATIN/BLK LN 550-14230 KNOB,JOYSTICK,LARC2 630-12533 WSHR,FL,.120IDX.25ODX.062,RUB...
Page 143 Lexicon PART NO. DESCRIPTION EFF■INACT REFERENCE DISPLAY,LARC2 (SHARP or KYOCERA) SHARP: 430-13934 DISP,LCD,640X240DOTS,COLOR 680-14236 CABLE,FFC,20CX.5MM,12.5",FOLD LCD TO MAIN BD (J1) 680-14240 CABLE,CONN/HSG,2C,2.5" 701-14216 BRACKET,LCD,SHARP,LARC2 720-10158 TAPE,FOAM,DBL-STK,.5WX.025THK FFC CABLES TO BRKT (2).5" PC, (1)1" PC 720-14224 GASKET,LCD,SHARP,LARC2 KYOCERA: 430-14034 DISP,LCD,640X240DOTS,COLOR, CABLE TO METER BD 680-14237 CABLE,FFC,18CX.5MM,5.7",FOLD...
Page 144 960L Multi-Channel Digital Effects System Service Manual PART NO. DESCRIPTION EFF■INACT REFERENCE 203-12895 RESSM,RO,1%,1/10W,143 OHM 240-11827 CAPSM,ELEC,10uF,16V,20% 240-12136 CAPSM,ELEC,33uF,10V,20% C6,17 240-13216 CAPSM,ELEC,22uF,16V,20% 240-13217 CAPSM,ELEC,47uF,16V,20% 240-13803 CAP,ELEC,560uF,35V,RAD,LOW ESR 2 C14,15 240-13913 CAPSM,ELEC,470uF,16V,20% C141,143,145,147 241-09366 CAPSM,TANT,10uF,25V,20% C90,92,150,153 241-11799 CAPSM,TANT,4.7uF,6.3V,20% 245-09869 CAPSM,CER,.001uF,50V,Z5U,20% C5,9,62 245-09875 CAPSM,CER,.1uF,50V,Z5U,20%...
Page 145 Lexicon PART NO. DESCRIPTION EFF■INACT REFERENCE 350-14374 IC,SPROM,LARC2,MAIN,V1.00 350-14375 ICSM,FLASH,1M,LARC2,BOOT,V1.00 1 355-13929 ICSM,ADC,TLV1548C,SAR,10b,SSOP 2 U30,31 365-13930 ICSM,uPROC,SA-1100,160MHz,TQFP 1 390-12733 CRYSTAL OSCSM,2MHz,TRI 390-13932 CRYSTALSM,32.768kHz,PAR 390-13933 CRYSTALSM,3.6864MHz,PAR,HC49 430-10419 LEDSM,INNER LENS,RED 430-10421 LEDSM,INNER LENS,GRN D5,6,14 430-13914 LEDSM,RED,100MCD,3.2X2.8MM D26-31,34-39 440-13906 FUSESM,.75A,RESETTABLE,.18X.13 1 453-13916 SW,PBM,1P1T,7MMSQ,160GF,PCRA 1...
Page 146: Ship Mat'l/Packaging/Miscellaneous
960L Multi-Channel Digital Effects System Service Manual OPT BD ASSY,LARC2 PART NO. DESCRIPTION EFF■INACT REFERENCE 202-09873 RESSM,RO,5%,1/10W,10K OHM R10-18 202-10559 RESSM,RO,5%,1/10W,100 OHM R1-3 202-10586 RESSM,RO,5%,1/4W,100 OHM 240-11827 CAPSM,ELEC,10uF,16V,20% C26,28,30,32 245-12485 CAPSM,CER,.1uF,25V,Z5U,20% C1-10,13,14,19,25 C27,29,31 330-13923 ICSM,DIGITAL,74LVC32A,TSSOP 330-14314 ICSM,DIGITAL,74LVC125A,SOIC 345-13140 ICSM,INTER,RS232 XCVR,+5V,SOIC 2 U1,2 350-14046 ICSM,GAL,22V10,LARC2,OPT,V1.00...
Page 147: Spare Assemblies
Lexicon Spare Assemblies PART NO. DESCRIPTION EFF■INACT REFERENCE 021-14500 PL,SHIP,NLX BPL,TESTED,960L 021-14501 PL,SHIP,I/O BPL,TESTED,960L 021-14502 PL,SHIP,I/O CLK BD,TESTED,960L 021-14503 PL,SHIP,AIN BD,TESTED,960L 021-14504 PL,SHIP,AOUT BD,TESTED,960L 021-14505 PL,SHIP,AES BD,TESTED,960L 021-14506 PL,SHIP,RVB BD,TESTED,960L 021-14507 PL,SHIP,NLX CPU BD,TESTED,960L 021-14508 PL,SHIP,NLX EXT BD,TESTED,960L 021-14509 PL,SHIP,I/O EXT BD,TESTED,960L...
Page 149: Schematics
060-13369 SCHEM,RVB BD,960L 060-13379 SCHEM,MAIN BD,LARC2 060-13389 SCHEM,METER BD,LARC2 Drawings: COMPONENT LAYOUT, PC BD, NLX BPL, 960L COMPONENT LAYOUT, PC BD, I/O BPL, 960L COMPONENT LAYOUT, PC BD, I/O CLK, 960L COMPONENT LAYOUT, PC BD, AIN, 960L COMPONENT LAYOUT, PC BD, AOUT, 960L...
Page 150 Your Notes:...
Page 151 Lexicon...
Page 153 Lexicon...
Page 155 Lexicon...
Page 157 Lexicon...
Page 159 Lexicon 9-11...
Page 161 Lexicon 9-13...
Page 163 Lexicon 9-15...
Page 165 Lexicon 9-17...
Page 167 Lexicon 9-19...
Page 169 Lexicon 9-21...
Page 171 Lexicon 9-23...
Page 173 Lexicon 9-25...
Page 175 Lexicon 9-27...
Page 177 Lexicon 9-29...
Page 179 Lexicon 9-31...
Page 181 Lexicon 9-33...
Page 183 Lexicon 9-35...
Page 185 Lexicon 9-37...
Page 187 Lexicon 9-39...
Page 189 Lexicon 9-41...
Page 191 Lexicon 9-43...
Page 193 Lexicon 9-45...
Page 195 Lexicon 9-47...
Page 197 Lexicon 9-49...
Page 199 Lexicon 9-51...
Page 201 Lexicon 9-53...
Page 203 Lexicon 9-55...
Page 205 Lexicon 9-57...
Page 207 Lexicon 9-59...
Page 209 Lexicon 9-61...
Page 211 Lexicon 9-63...
Page 213 Lexicon 9-65...
Page 214 Your Notes:...
Page 215 Lexicon 9-67...
Page 217 Lexicon 9-69...
Page 219 Lexicon 9-71...
Page 221 Lexicon 9-73...
Page 223 Lexicon 9-75...
Page 225 Lexicon 9-77...
Page 227 Lexicon Your Notes: 9-79...
Page 228 Your Notes:...
Page 229 Lexicon 9-81...
Page 231 Lexicon 9-83...
Page 233 Lexicon 9-85...
Page 235 Lexicon 9-87...
Page 237 Lexicon 9-89...
Page 239 Lexicon 9-91...
Page 241 Lexicon 9-93...
Page 243 Lexicon Your Notes: 9-95...
Page 244 Lexicon, Inc. 3 Oak Park Bedford, MA 01730-1441 Tel: 781-280-0300 Customer Service Fax: 781-280-0499 Email: csupport@lexicon.com www.lexicon.com Lexicon Part No. 070-14826 Rev 0 Printed in U.S.A.

Lexicon 960L Service Manual

Chapter 1 Reference Documents, Required Equipment

Chapter 2 General Information

Chapter 3 Specifications

Chapter 4 Performance Verification

Chapter 5 Service Notes

Chapter 6 Troubleshooting

Chapter 7 Theory of Operation

Chapter 8 - Parts List

Quick Links

Troubleshooting

Need help?

Questions and answers

Related Manuals for Lexicon 960L

Summary of Contents for Lexicon 960L

Table of Contents