Harman Kardon SIGNATURE 2.0 Service Manual page 34

harman/kardon
Service bulletin # H/K9904 October 1999
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)
Signature 2.0 GT0003-01001
GT0003-04000
Signature 2.0 GT0003-04001
* Additionally, factory modified units have a yellow label on the outer carton stating "Now with DTS".
Serial number (230V)
GT0006-01001
to
GT0006-02070
GT0006-02071
and above*
Service Bulletin
Warranty labor rate: MINOR repair
to
and above* Changed by factory
34
Status
Replace IC305,
Unmodified
Supplied with
NONE REQUIRED
Action
DSP board
Upgrade kit