Harman Kardon SIGNATURE 2.0 Service Manual 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.
3. Center channel "Boost" function now works correctly.
4. Reduced remote button "twitchyness" when selecting Center/Surround effects.
The following code changes were made from ver 2.4 to create 2.4E of the
Signature 2.0.
1. Fixed record bus problem. Tracking/Selectable now work correctly.
2. Auto mode switching no longer erroneously unmutes.
3. '<' and '>' key in tuner menu now work correctly. Both used to execute '>' function.
4. Green characters changed to white in RDS Type menu.
5. Implemented Traffic program type for search.
6. Radio Text display rate upped to approx. 6 cps.
7. Input levels limited to +30 dB.
8. Tuner put into mono mode when mono DSP mode enabled.
9. Check for digital stream re-lock during auto-mode switching.
10. Added menu options to set power-up state for 'ON', 'MUTE' and 'STANDBY' into
ADV SETTINGS menu.
11. No longer experience a program error when selecting '<' key from RDS Manual
menu
12. We now 'Kick-Spanky' during all DSP communications.
13. Mode name now restored correctly if stream restored while blink is off.
14. Unconfigured speakers always muted.
15. Rear delay now correctly set in Dolby Digital mode.
16. System vars updated automatically when new EPROM installed.
17. Preset storage selection in Tuner menu now has white characters instead of green.
18. DLBY Late Nite mode changed to Dolby Lt Nite.
19. Setting VFD status to OFF now correctly keeps the VFD off after power-up.
20. Default mode for CD and Tape now set to Stereo.
21. Removed "squeally" noise during power-up.
22. Program type name now right justified on VFD.
23. Add up and down arrow support for DVD remote.
24. Speaker delays are now reset when System Reset is performed.
The following code changes were made from ver 2.4E to create 2.5 of the
Signature 2.0.
1. Support for new tuner board, including auto-detect of tuner version.
2. New tuner seek method, which speeds up searching.
3. Speed up RDS text scrolling to meet European requirements.
4. Disabled Longwave band from tuner.
5. Remote no longer ignores a tune down command after a fast seek up.
6. Mono (menu mono) now actually puts the tuner in mono mode.
7. Doing "ANY RDS" search will now stop at a "MANUAL RDS" preset.
8. Fixed stereo indicator: no longer lights when mono selected from Music Mode
9. Added RDS Traffic search.
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harman/kardon