Harman Kardon SIGNATURE 2.0 Service Manual 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.
4. With the Tuner selected, if a numeric input sequence is left unfinished, the OSD will
no be correctly updated with the current Tuner information.
5. When selecting a station via numeric input from the remote, the OSD display is now
correctly updated when the Tuner becomes tuned.
6. From the "Tuner" menu, when RDS: entry is set to Manual and a Preset is then
stored, the screen and system are then correctly stored and updated on the OSD.
The lack of OSD update would create confusion as to whether the preset had
actually been accomplished.
7. From the Tuner menu with any mode except "Stereo" selected, if the user presses
the >| button on the "FREQ:" line to search for the next station, the Tuner will no
longer stay muted. I believe this problem would only show up with the Crystal DSP
board.
The following code changes were made from ver 2.6 to create 2.7 of the Signature
2.0.
1. Fixed problem that prohibited generation of pink noise in speaker calibration menu if
a valid stream was present on a selected digital input.
2. Changed code to ensure that all unused output channels were muted when in Stereo
mode.
3. Fixed screen timeout problem that caused an "unfinished" numeric input to remain on
the OSD when attempting to change the tuner frequency with the Tuner selected.
The following code changes were made from ver 2.7 to create 2.8 of the Signature
2.0.
1. With a Dolby Digital 2/0/0 stream present, if the Stereo button on the remote is
pressed, the 2.0 will go into Pro Logic mode. This is required by Dolby to fix their
problem of some incorrectly flagged program material.
2. Trim control ranges are now limited to +10 –20 dB.
3. All channels will now track the master volume in level. This will compensate for
trimmed channels and the non-linearity of the volume pots
4. Balance control now works correctly.
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harman/kardon