Panasonic TH-42PW3 Service Manual page 18

9.1.2 CD mode
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Select the CD mode by Up/Down button
press the Mute button on the remote control more than 5 sec.
Micom software version (IC9354), this version can be upgrade by
1. replace of new version IC
2. Loading the new version software from loader tool, TZSC07036.
Memory data change
To exit the CD mode, press the
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on the remote control at the front page of CAT mode then
R button on the remote control.
SCHEMA*99