Power Led Blinking Timing Chart; No Power - Panasonic TC-P50GT30 Service Manual

7.2.

Power LED Blinking timing chart

1. Subject
Information of LED Flashing timing chart.
2. Contents
When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the
defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.
Blinking Times
*Use SC jig to isolate the board.
7.3.

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 7.2.)
Contents
1 Panel information SOS
LP1 Start SOS
3 P+ 3.3V SOS
4 Power SOS
5 P+ 5V SOS
6 Driver SOS1
(SC Energy recovery circuit)
(A-SC FPC DET)
7 Driver SOS2
(SU/SD Connector DET)
(SU/SD Scan and Logic IC)
8 Driver SOS3
(SS FPC DET)
(SS Energy recovery circuit)
9 Discharge Control SOS
10 Sub 5V SOS
Sub 3.3V SOS
Tuner power SOS
11 FAN SOS
12 Sound SOS
13 Emergency SOS
14 IR LED SOS
Check point
A-Board
P-Board
P2-Board
A-Board
SC-Board
A-SC FPC
SU-Board
SD-Board
SS-Board
SS2-Board
SS FPC
SS2 FPC
A-Board
A-Board
SC-Board
SS-Board
P-Board
P2-Board
A-Board
A-Board
Speaker
A-Board
A-Board
19
-
*
FAN