Troubleshooting Guide; Self-Check Function; How To Access; Screen Display - Panasonic TC-19LX50 Service Manual

5 Troubleshooting Guide

5.1.

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.
5.1.1.

How to access

5.1.1.1. Access
Produce TV reception screen and, while pressing [VOLUME-] button on the main unit, press [SLEEP] button on the remote
controller unit simultaneously.
5.1.1.2. Exit
When one of the buttons for channel selection etc. is pressed, the display returns to the normal screen.
5.1.2.

Screen display

Display
UV
SND
AVSW
GC3FM
GC4U
MEM
Ref No.
TU001A Tuner
IC2301 Sound Control
IC3007 AV Switch
IC4023 Global Core Main
IC4016 Global Core
IC1104 EEPROM
7
Description
A-Board
A-Board
A-Board
A-Board
A-Board
A-Board
TC-19LX50 / TC-23LX50 / TC-19LE50 / TC-23LE50
P.C.B