Self-Check Function; How To Access; Power Led Blinking Timing Chart - Panasonic TH-42PM50U Service Manual

8. Self-check Function

When symptoms like "the power fails sometimes" or "sometimes there is no picture and/or
sound" can not be confirmed at the time of servicing, the self-check function can be used to
confirm the occurrence and to find the defective circuit.
In case of "power failure", flashing of the "POWER" indication (red) at the front of the unit can be
used to narrow down the +B line.

8.1. How to access

8.1.1. Access
Produce TV reception screen and, while pressing [VOLUME-] button on the main unit, press
[SLEEP] button on the remote controller unit simultaneously.
8.1.2. Exit
Remove the AC cord.
8.1.3. Screen display
Display Ref.No.
SND IC2608
AVSWV IC2602
AVSWA IC2605
ADV IC4018
GC4P IC4026
HDMI IC5003
MEM IC4008
PANEL IC9007

8.2. Power LED Blinking timing chart

1. Subject
Information of LED Flashing timing chart.
Description
BBE Viva
Video SW
Audio SW
10Bits A/D
GC4PRO
HDMI I/F Receiver
EEPROM
SUB MICON
22
Board
H-Board
H-Board
H-Board
DG-Board
DG-Board
DV-Board
DG-Board
D-Board