Sony KD-43X7 H Series Service Manual page 19

2020/12/12 02:35:59 (GMT+09:00)
2.1.2 PSU trouble shooting flow
START
AC connect (80~288V)
Can TV power on?
No
F6101
Fuse OPEN check
No
Case 1
STBY output check
(3.35~3.55V)
*PIN 5 CN6401
Yes
Power ON
Input check
(~3.3V)
*PIN 9 CN6401
Yes
SAFETY NOTES SELF DIAGNOSTIC FUNCTION
T R O U B L E S H O O T I N G
Yes
Replace Power Supply
No
Replace Power Supply
No
TROUBLESHOOTING
S E C T I O N 3
RC can turn TV ON?
Yes
Case 2
12V output check
(12.2~13.2)
*PIN 13~18 CN6401
Yes
BL_ON active HIGH
(~3.3V)
*PIN # refer appendix
Yes
LED output check
Case 3
(*Depends on PSU type)
*PIN 2 or 5 CN6801
Power Supply
working normal
SERVICE ADJUSTMENT
No
Main board problem
No
Replace Power Supply
No
Main board problem
Case 4
No
BL_ERR level check
(~2.8V)
*PIN 8 CN6401
No
DIAGRAMS PANEL HANDLING
Yes
Replace Power Supply
*refer to Appendix
19
FACTORY DATA RESET
SYS SET