Panasonic TC20LB30 - 20" LCD COLOR TV, Руководство по обслуживанию

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4 Self-check function
When phenomena like "the power fails from time to time" or "the video/audio fails from time to time" can not be confirmed at the
time of servicing, the self-check function can be used to confirm the occurrence and to limit the scope for the defective circuits.Also,
when "the power fails from time to time", display on the screen can be used to confirm the occurrence and to limit the scope for
the defective circuits.
Any programmed channels, channels caption data and some other user defined settings will be erased and return to factory setting.
4.1. How to access
4.1.1. Access
Produce TV reception screen and, while pressing [VOLUME-] button on the main unit, press [SLEEP] button on the remote
controller unit simultaneously.
4.1.2. Exit
When one of the buttons for channel selection etc. is pressed, the display returns to the normal screen.
4.2. Screen display
Display Ref .No. Description P.C.B.
TNR TU001 Tuner TA-Board
SOUND IC2320 Sound control A-Board
AVSW IC3001 AV Switch A-Board
MTS IC2201 Multi Sound Processor TA-Board
GLP IC4014 LCD Processor A-Board
GC3 IC4012 Global Core A-Board
TEMP IC1008 Temperature Sensor A-Board
MEMORY IC1002 EEPROM A-Board
JPEG IC6513 MCU (JPEG) JG-Board
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TC-20LB30