Section 2 : Self Diagnostic Function; Section 5 : Diagrams; Section 6 : Panel Handling - Sony KD-43X7 H Series Service Manual

2020/12/12 02:35:59 (GMT+09:00)
BKR Board Model
START
Check VDD
C6565 Voltage.
Is the voltage >3.0V?
yes
Check TYPE_DET
CL6502 Voltage.
Is the voltage 2.6±0.2V?
yes
Check OPWRSB
CL6504 Voltage.
Is the voltage 0V?
yes
Check POWER_ON_M
CL6514
Is the voltage >3.0V?
yes
SAFETY NOTES SELF DIAGNOSTIC FUNCTION
T R O U B L E S H O O T I N G
no
Check CN5500 3.3V_STBY Line (JL5508)
2.1.5 No POWER - DDCON/LDO (IC6010)
no
Type Detection Circuit problem.
Check TYPE_DET Line (R6601, R6602).
no
SOC problem
IC5000 R5043 POWER1
no Try AC Off and On after few minutes.
If #pin10 keep Low, change IC6510.
If #pin10 goes High few seconds and downs to Low,
Check +12V_MAIN Line .
TROUBLESHOOTING
S E C T I O N 3
Check 12V_MON
Is the voltage >2.6V?
Check DC_OFF_DET
Is the voltage >3.0V?
Is the voltage >3.0V?
Check PGOOD_1_M
Is the voltage >3.0V?
SERVICE ADJUSTMENT
no
CL6501 Voltage.
yes
no
CL6508
yes
no
Check P_ON_#1
CL6513
yes
no
1.3 No POWER - DDCON/LDO
CL6506
Continue page 30...
DIAGRAMS PANEL HANDLING
Check 12V_MAIN Line
Change IC6510
Change IC6510
Check 1.0V DDCONs
(IC6017, IC6020)
29
FACTORY DATA RESET
SYS SET