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Harman Kardon SIGNATURE 2.0 Service Manual

Harman kardon signature 2.0: service manual.

 
harman/kardon
ESD, LEAKAGE, SAFETY ......................2
BASIC SPECIFICATIONS.......................5
FEATURES...........................................7
QUICK START GUIDE.............................9
FRONT PANEL CONTROLS....................13
REAR PANEL CONNECTIONS...............15
REMOTE CONTROL FUNCTIONS..........17
TROUBLESHOOTING GUIDE.................21
PROCESSOR RESET............................21
TROUBLESHOOTING CHART...............23
BASS/TREBLE CHARTS........................24
MECHANICAL ASSEMBLY.....................25
SIGNATURE 2.0
PROCESSOR/TUNER
SERVICE MANUAL
harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797
CONTENTS
BULLETIN HK9708................................30
BULLETIN HK9709................................31
BULLETIN HK9904................................32
BULLETIN HK2000-07............................33
IC U305 Replacement Instructions...........34
Signature 2.0 Upgrade Procedure............35
VERSION CHANGES...........................36
Auto Detect Mode ON...........................40
SCHEMATICS.....................................41
PCB DRAWINGS.................................70
ELECTRICAL PARTS LIST....................76
Rev0
8/2006
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Summary of Contents

  • Page 1

    BASS/TREBLE CHARTS……………………24 MECHANICAL ASSEMBLY…………………25 CONTENTS BULLETIN HK9708……………….….………30 BULLETIN HK9709………………….….……31 BULLETIN HK9904………………….….……32 BULLETIN HK2000-07……………….….…..33 IC U305 Replacement Instructions………..34 Signature 2.0 Upgrade Procedure………...35 VERSION CHANGES………………………36 Auto Detect Mode ON………………………40 SCHEMATICS……………………………….41 PCB DRAWINGS………….………………..70 ELECTRICAL PARTS LIST…………….….76 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797...

  • Page 2

    Signature 2.0 Processor/Tuner Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor "chip" components.

  • Page 3

    Signature 2.0 Processor/Tuner Before returning the unit to the user, perform the following safety checks : 1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the unit.

  • Page 4

    Signature 2.0 Processor/Tuner Important Safety Information Verify Line Voltage Before Use This Signature 2.0 has been designed for use with 120-volt AC current. Connection to a line voltage other than that for which it is intended can create a safety and fire hazard, and may damage the unit.

  • Page 5

    Signature 2.0 Processor/Tuner Signature 2.0 Processor/Tuner Specifications Inputs: Analog Audio: Digital Audio: External Adapter: Composite Video: S-Video: IR Sensor Input: Outputs: Main Audio: Main Video: Record Audio: Record Video: IR Sensor: Accessory Trigger: Surround Modes: Analog: Digital: Preamplifier: Frequency Response:...

  • Page 6

    Signature 2.0 Processor/Tuner Signature 2.0 Processor/Tuner Specifications (continued) Tuner Section FM: Frequency Range: Usable Sensitivity: Signal-To-Noise: S/N 50dB Sensitivity: THD + N: Capture Ratio: AM Suppression: Image Rejection: IF Rejection: Effective Selectivity: Stereo Separation: RDS Modes: Tuner Section AM: Frequency Range:...

  • Page 7: Features

    In addition to selecting from a variety of audio/video sources, the Signature 2.0 is equipped with the latest in tuner technology, including the RDS data system that automatically identifies FM stations transmitting special data and provides information they transmit about the station’s programming.

  • Page 8

    Signature 2.0 Processor/Tuner Cleaning When the unit gets dirty, wipe it with a clean, soft dry cloth. If necessary, wipe it with a soft cloth dampened with mild soapy water, then a fresh cloth with clean water. Wipe dry immediately with a dry cloth. NEVER use benzene, aerosol cleaners, thinner, alcohol or any other volatile cleaning agent.

  • Page 9

    “on the air.” Please follow the directions carefully in order to avoid damage to the Signature 2.0 or other components in your system. If you choose to take advantage of these Quick-Start instructions we nevertheless urge you to read through the Owner’s Manual at a later time so that your system may...

  • Page 10

    Signature 2.0 Processor/Tuner Quick Start Connection and Setup Connect 75-ohm Connect to coaxial FM antenna here digital audio output of A/V sources, DVD, HDTV, CD, etc. Connect AM loop antenna here ® NRTL /C LR110480 CSA E65 ANTENNA FRONT CENTER...

  • Page 11

    Signature 2.0 Processor/Tuner NOTE: To use the sources when they are connected as shown in the chart on the previous page, press the button name shown. The button names may not correspond exactly to the type of source used for any input profile,...

  • Page 12

    It will show you how to use the many features, modes and controls that are a vital part of the Signature 2.0. Correct setup and installation is impor- tant to optimizing the sound quality of your new con- troller, and will also make it easier to operate.

  • Page 13: Front Panel Controls

    Signature 2.0 Processor/Tuner Front Panel Controls Standby On/Off 1 Master Power Switch 2 Standby Switch 3 Source Selectors 4 Surround Selectors 1 Master Power Switch: This is the main power control for the 2.0. To turn the unit on, press this switch in until it latches and is flush with the front panel.

  • Page 14

    ! Remote Sensor Window: This area contains the sensor that receives commands from the Signature 2.0’s infrared remote control. Make certain that it is not blocked by cabinets, smoked glass or doors or other objects that may interfere with the line of sight from the remote.

  • Page 15: Rear Panel Connections

    This eliminates the risk of possible damage to your speakers or other system components. When making connections to the Signature 2.0 make certain that the plugs are firmly seated into the jacks. This prevents intermittent connections which may interfere with performance.

  • Page 16

    § RS-232 Control Port: This jack is provided to permit operation of the Signature 2.0 by computers or home automation systems. The use of this control port requires additional optional software and it is strongly recommended that a Harman Kardon dealer be consulted before any connections are made.

  • Page 17

    Signature 2.0 Processor/Tuner Remote Control Operation Sending Learn Source Source Store Vid 1 Mono Vid 2 Display Vid 3 Simul Tuner Tape Menu Treble Bass Balance Signature 2.0 Learning Main Main Type Presets Presets Music Movies Stereo Enter Disc/Track Mute...

  • Page 18

    Signature 2.0 Processor/Tuner Although the basic functions of the Signature 2.0 may be operated from the front panel, most operation will be controlled through the wireless remote. The remote is a powerful tool, and it is worth taking a few minutes to familiarize yourself with the interaction of the various controls.

  • Page 19

    Disk/Track: When a compatible Harman Kardon CD player or cassette deck is in use, this button has different functions. It may also be re-programmed to any compatible IR code function following the instructions on page 18.

  • Page 20

    Signature 2.0 Processor/Tuner b) When Tape 1 is the input source, and the tape machine is a compatible Harman Kardon dual cassette deck, these buttons will switch between the “A” and “B” wells. v Enter: Press this button to select a station after you have entered its frequency or preset location using the Numeric Keys w.

  • Page 21

    Signature 2.0 Processor/Tuner Troubleshooting Guide The Signature 2.0 is designed for trouble-free operation. In normal use, most users will not encounter any trouble with the unit. However, as with any sophisticated electronic device, there may be occasional problems on initial installation or during the life of the unit. The items...

  • Page 22

    If a reset does not solve the system problem, consult an authorized Harman Kardon service depot. S T O R E R E S E T harman/kardon...

  • Page 23: Troubleshooting Chart

    Signature 2.0 Processor/Tuner Troubleshooting Chart Symptom Possible Cause Unit does not operate • No AC Power. when standby switch or remote power is pressed. • Main Power Switch Off. Display lights, but no • Intermittent Connections. sound is heard from any channel.

  • Page 24

    Signature 2.0 Processor/Tuner Bass Boost This chart, using data from a sample Signature 2.0 unit and automated test equipment, shows the frequencies at which low-frequency information is boosted when settings are changed with the Bass Boost control m, or through the use of the Effects Menu (Figure OSD-8).

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  • Page 30

    Models: Signature 2.0 Processor/Tuner Subject: Remote Control Works Intermittently In the event you receive a Signature 2.0 with the complaint of “the remote control only works at certain angles, or when it’s very close to the unit,” perform the necessary steps listed below: 1.

  • Page 31

    Models: Signature 2.0 Processor/Tuner Subject: Turn on/ turn off “thump” In the event you receive a Signature 2.0 that is being used with a power amplifier other than the Signature 2.1 which exhibits a “thump” when the unit is turned ON or OFF: When a power amplifier other than the Signature Series 2.1 is used with the Signature Series 2.0...

  • Page 32

    Subject: Complaints related to version 2.0 - 2.3 Software In the event you receive a Signature 2.0 with one or more of the symptoms listed below, upgrade the software to revision 2.4. Page 2 of this bulletin provides replacement instructions for IC U305.

  • Page 33

    Software (IC U305) Replacement Instructions Before replacing the software in the SIGNATURE 2.0 Processor, confirm the Software revision in the unit. To check, plug the unit in and turn it ON. The display will read “Ver __.__”. Make sure the version you are replacing is a higher number than what’s on the display.

  • Page 34

    Models: Signature 2.0 Subject: DTS Upgrade The following instructions detail the steps needed to upgrade a Harman Kardon Signature Series 2.0 Processor/Tuner with a new DSP board and operating system EEPROM. These additions will provide significant improvements in performance, with the following major new advantages: ·...

  • Page 35: Signature 2.0 Upgrade Procedure

    “Signature” and a revision number. Note there is a notch in the front edge. 9. Using an IC Chip Removal & Installation tool (Radio Shack model #276-2101 or equivalent), carefully remove the IC by gently rocking it from side to side and then pulling straight up.

  • Page 36

    Signature 2.0 Processor/Tuner The following code changes were made from ver 2.0 to create 2.1 of the Signature 2.0. 1. When a mode other than Stereo is selected, and the system is muted, adjusting the volume will now cause the system to unmute correctly.

  • Page 37

    Signature 2.0 Processor/Tuner The following code changes were made from ver 2.3 to create 2.4 of the Signature 2.0. 1. Added changes required for Rev 3 audio board to reduce power transition “thumping”. 2. Code change to eliminate random characters at bottom-right of video output.

  • Page 38

    Signature 2.0 Processor/Tuner 10. Modified Traffic support to look for both “announce” and programming. 11. Added Traffic as a preset type. 12. RDS not supports TextA and TextB bit for displaying total of 128 character strings. 13. Detect new style DSP board and issue correct mode commands. Also enable DTS modes.

  • Page 39

    Signature 2.0 Processor/Tuner 2. When cycling through the “Mode” line of the “Source Menu” the DSP (new Crystal model ONLY) would remain muted, thereby causing no output. This has now been fixed. 3. When a digital input stream is Auto-detected as a DTS stream, the default mode set is now full 3/2 rather than 2/0.

  • Page 40: Auto Detect Mode On

    Signature 2.0 Processor/Tuner Steps to turn Auto Detect Mode ON for Sig. 2.0 version 2.10 This can be accomplished by viewing the On Screen Display or the front panel display. 1) Turn the unit ON. TV PRO LOGIC should be in the display 2) Press the MENU button on the remote control.

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