Sony KD-43X7 H Series Service Manual page 37

2020/12/12 02:35:59 (GMT+09:00)
BKR Board Model
Board Operation
BKR DC/DC
SAFETY NOTES SELF DIAGNOSTIC FUNCTION
T R O U B L E S H O O T I N G
IC Ref Voltage supply
IC6007 1.8V_TU
IC6014 1.0V_A
TROUBLESHOOTING
S E C T I O N 3
DDCONs check
Please refer page-34 for Ref number.
START
yes
Check Vin voltage
no
C6xxx
Is voltage >12.0V?
yes
Check Enable pin
no
voltage
Is voltage >2.5V?
yes
Change DDCON IC
SERVICE ADJUSTMENT
1) Check POWER_ON
(Refer 2.1.4 No Power U-Com Failure)
2.1.4 No Power U-Com Failure
or
Enable source
DIAGRAMS PANEL HANDLING
37
FACTORY DATA RESET
SYS SET