Power Led Blinking Timing Chart; No Power - Panasonic TH-L37U30M Service Manual

6.2.

Power LED Blinking timing chart

1. Subject
Information of LED Flashing timing chart.
2. Contents
When an abnormality occurs, the protection circuit will operate and reset the unit to stand by mode. During this time, the
defective block can be identified by the number of blinking times of the Power LED on the front panel of the unit as follow:
Times
1 BackLight_SOS
3 SOS(Tuner_SOS)
4 SUB12V_SENSE_SOS
7 SUB3.3V_SENSE_SOS
9 SOUND_SOS
10 ZWEI2_SOS
12 BackEnd(sLD)_SOS
13 EMERGENCY_SOS
14 IROM_SOS
6.3.

No Power

First check point
There are following 2 states of No Power indication by power LED.
1. No lit
2. Red is lit then turns red blinking a few seconds later. (See 6.2.)
LCD
SOS
SUB3.3V/panel_15V
detect of IIC
communication error
Error of STM micon
EEPROM ADR
Remark
address
0 × 0461
0 × 045B
0 × 045A
0 × 0459
0 × 045D
0 × 0462
0 × 0466
13
TH-L37U30M
PCB NAME
A-Board
P-Board
LCD Panel
A-Board
A-Board
A-Board
A-Board
P-Board
A-Board
LCD Panel
A-Board
A-Board
A-Board