Troubleshooting Guide; Self-Check Function - Panasonic TC-32LX50 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
MEMORY
TNR1
MTS
SOUND
AVSW-V
AVSW-A
ADV
GC4PRO
GC4L
HDMI
Ref No.
IC1106 EEPROM
TU3001 Tuner
IC3002 TV sound multiplex decode
IC2001 Sound Control
IC3007 Audio input Switch
IC3001 Video input Switch
IC4005 A/D Converter
IC4054 Video Processor (GC4PRO)
IC4057 Video Processor (GC4L)
IC5003 HDMI I/F
9
Description
DG-Board
H-Board
H-Board
H-Board
H-Board
H-Board
DG-Board
DG-Board
DG-Board
DV-Board
TC-32LX50 / TC-26LX50
P.C.B