33
TROUBLE SHOOTING
START
F6101 Fuse
OPEN check
STBY output check
(3.35~3.55V)
Replace
Power supply
(G*)
Yes
No
No
Yes
Power
ON input check
(~3.3V)
No
Yes
12V output check
(12.2~13.2V)
No
Yes
Can TV power on?
No
AC Connect
(80 ~ 288V
Main Board
Problem(B*)
Replace
Power supply
(G*)
Replace
Power supply
(G*)
BL_ON active HIGH
(~3.3V)
Main Board
Problem (B*)
No
Yes
Yes
Replace Power supply
(G*)
no
LED output check
(133.4V~192.9V)
Power Supply
Working Normal
BL Err level check
(~2.8V)
Yes
No
Case 4
Output
Name
Output Voltage
Connector
CN5801
+OUT1
133.4V ~ 192.9V
Pin 1
+OUT2
133.4V ~ 192.9V
Pin 2
+OUT3
133.4V ~ 192.9V
Pin 3
+OUT4
133.4V ~ 192.9V
Pin 4
Output
Name
Output
Voltage
Connector
CN6401
BL_ON
2.64V~3.3V
Pin 3
STBY3.3V
3.35V~3.55V
Pin 5
AC OFF
DET
3.45V
Pin 7
BL_ERR
0V
Pin 8
Power_ON
2.64V~3.3V
Pin 9
REG12V
12.2V~13.2V
Pin 13
Pin
18
3-2-2. NO Power (XMH-75)
KDL-65W850C, 855C, 857C, 75W850C, 855C
Size B* Board G* Board
65”
BMX
GL1SB
75”
BMX
GL1C