Power Led Blinking Timing Chart - Panasonic TX-P42XT50B Service Manual

Gpf15d-e chassis
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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
1
Panel information SOS
PD Start SOS
2
P+15V SOS
3
IROM BOOT PROGRAM SOS
4
Power SOS
6
Driver SOS1
(SN/PSS Energy recovery circuit)
(A-SN FPC DET)
7
Driver SOS2
(SN Connector DET)
(SN Scan and Logic IC)
8
Driver SOS3
(PSS FPC DET)
9
Discharge Control SOS
10
Sub 3.3V SOS
Tuner power SOS
BE SOS
12
Sound SOS
13
Emergency SOS
20
2nd BOOT PROGRAM SOS
(Watchdog timer over flow)
21
2nd BOOT PROGRAM SOS
(System error)
22
2nd BOOT PROGRAM SOS
(Main system bus freeze)
23
2nd BOOT PROGRAM SOS
(Accidental interrupt signal)
24
2nd BOOT PROGRAM SOS
(NAND Flash memory data transfer error finish)
25
2nd BOOT PROGRAM SOS
(Unsupported NAND Flash memory)
Contents
19
Check point
-
A-Board
PSS-Board
A-Board
PSS-Board
PSS-Board
SN-Board
PSS-Board
A-SN FPC
SN-Board
PSS-Board
PSS FPC
A-Board
A-Board
SN-Board
PSS-Board
A-Board
Speaker
A-Board
A-Board
A-Board
A-Board
A-Board
A-Board
A-Board

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