Harman Kardon SIGNATURE 2.0, Service Manual

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harman/kardon
Service Bulletin
Service bulletin # H/K9904 October 1999 Warranty labor rate: MINOR repair
To: All harman/kardon Service Centers
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:
·
Greatly improved audio decoding in all modes, using the highly regarded Crystal Semiconductor, CS4926,
audio-decoding circuit.
·
DTS processing, along with Dolby Digital, Dolby Pro Logic, and a wide variety of music and movie surround
modes.
·
Easier programming when used with computer-controlled RS-232 remote systems.
· Faster microprocessor operation for quicker response to remote commands
· Improved and updated on-screen menus with added features.
1) Order h/k DTS Upgrade kit, part number: SIG2.0 DTS UPGRADE.
2) A new Owner’s manual (h/k part # HA160-0004-Arev1) should be ordered for the 2.0 that covers the
operation of the DTS upgrade.
3) Following the detailed instructions on the following page.
Model Serial number (120V) Serial number (230V) Status Action
Signature 2.0 GT0003-01001
to
GT0003-04000
GT0006-01001
to
GT0006-02070
Unmodified
Replace IC305,
DSP board
Supplied with
Upgrade kit
Signature 2.0 GT0003-04001
and above*
GT0006-02071
and above* Changed by factory NONE REQUIRED
* Additionally, factory modified units have a yellow label on the outer carton stating “Now with DTS”.
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