Sony XR-55A95K Service Manual page 26
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Also See for XR-55A95K:
- Service manual (60 pages) ,
- Original manual (32 pages) ,
- Setup manual (80 pages)
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TROUBLESHOOTING
1.3 No Power – DDCONs & LDO check
START
yes
Check VCC voltage
no
C4xx/C8xx
Is voltage >3V?
yes
no
Check Enable pin
voltage
Is voltage >3V?
yes
Change DDCON
Or LDO IC
Check 3.3V_STBY (Power board)
1.2 No Power U-Com Failure
or
Enable source
Please refer page 23 for Reference Number.
Board
Operation
IC Ref
BM5S22
DC/DC
IC418 or IC419
BM5S22
LDO
IC403
BM5S22
LDO
IC806
BM5S22
LDO
IC809
Voltage supply
5.0V_STBY_H
3.3V_MAIN_H
1.8V_M5_ET_STBY
3.3V_M5_STBY
26
SYS SET
- Quick Links:
- Self Diagnosis Function
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