Sony KD-55A9G User Manual

29
BM3J19 Board Model
DDCONs check
Check Enable pin
voltage
Is voltage >2.5V?
1.2 No Power U-Com Failure
or
Enable source
Change Fuse
no
no
START
yes
Change DDCON IC
Check fuse
F4xx / F6xx/F8xx/F66xx
Is fuse OK?
Check Vcc voltage
C4xx / C6xx/C8xx/C66xx
Is voltage >12.0V?
no
yes
yes
Please refer page-26~29 for
Ref number.
1) Check POWER_ON P-on u-com #pin10
(Refer 1.2 No Power U-Com Failure)
2) Check G* board
Board Operation IC Ref Voltage supply
BM3J19
DC/DC IC401 1.8V_TU_P
BM3J19
DC/DC IC402 5V_MAIN/5V_AUDIO
BM3J19
DC/DC IC403 3.3V_MAIN/3.3V_AUDIO
BM3J19
DC/DC IC405 1.8V_TU
BM3J19
DC/DC IC601 1.2V_M3_DDR
BM3J19
DC/DC IC604 1.05V_M3_A
BM3J19
DC/DC IC608 1.0V_M3_CORE
BM3J19
DC/DC IC609 1.0V_M3_CPU
BM3J19
DC/DC IC610 1.0V_M3_GPU
BM3J19
DC/DC
IC6601
1.5V_BE_DDR
BM3J19
DC/DC
IC6602
0.9V_BE
BM3J19
DC/DC
IC6604
0.8V_BE
1.3 No Power DDCON/LDO
SYSSET
2019/04/1901:55:00(GMT+09:00)

Sony KD-55A9G Specifications

General

Brand	Sony
Model	KD-55A9G
Category	LCD TV
Language	English