Ldos Check - Sony KD-55A9G Service Manual
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Also See for KD-55A9G:
- Reference manual (16 pages) ,
- Setup manual (2 pages) ,
- Reference manual (32 pages)
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2019/04/19 01:55:00 (GMT+09:00)
1.3 No Power DDCON/LDO
BM3J19 Board Model
Board
Operation
BM3J19
LDO
BM3J19
LDO
BM3J19
LDO
BM3J19
LDO
BM3J19
LDO
BM3J19
LDO
IC Ref
Voltage supply
IC400
1.2V_HDMI
IC602
1.05V_M3_STBY
IC603
1.05V_M3_ST_ET
IC606
2.5V_M3_DDR
IC607
1.8V_EMMC
IC6600
1.8V_BE_LDO
LDOs check
START
yes
no
Check Vcc voltage
C4xx/C6xx/C66xx
Is voltage >3V?
yes
no
Check Enable pin
voltage
Is voltage >3V?
yes
Change LDO IC
Please refer page-26~29 for
Ref number.
Check 3.3V_DDC_OUT
DDCON
(IC403 on BM3J19)
or
3.3V_STBY (G* board)
1.2 No Power U-Com Failure
or
Enable source
30
SYS SET
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