Protection Circuit; Auto Diagnostic Feature - Panasonic PT-47WXD63 Technical Manual

Protection Circuit

Auto diagnostic feature

IC1002
MPU
The front power LED blinks on and off to indicate SOS activation.
Number of Defect location
blinks
1 time
2 times
3 times
4 times
5 times
6 times
7 times
8 times FAN SOS
SOS2
58
SOS3
69
SOS
57
HHS
56
55
Figure 41
MPU_port
SOS MPU 57 pin (H:SOS)
SOS2 MPU 58 pin (L:SOS)
SOS3 MPU 69 pin (H:SOS)
HHS MPU 56 pin (H:SOS)
GC2M IIC ACK error
GC2S IIC ACK error
GC2V IIC ACK error
MPU 55 pin (H:SOS
Table 10
79
IC1006
3.3V reg
A31
51
53
7
H1
A14
Possible Cause
POWER SUPPLY
AND/OR VERTICAL
IC1006 (DG-BOARD)
CONVERGENCE
(DC-BOARD)
HHS (FLYBACK)
GC2M (DG-BOARD)
GC2S (DG-BOARD)
GC2V (DG-BOARD)
FAN