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TROUBLESHOOTING
1.3 No Power DDCON/LDO (LDO Check)
START
Check IC600
no
Vcc voltage
C601
Is voltage >12V?
yes
Check Vcc voltage
no
C2214
Is voltage >4V?
yes
Check Enable
no
IC2201 #pin3
Is voltage >1.0V?
yes
Change LDO
IC2201
Check Vcc voltage
no
C2214
Is voltage >3V?
yes
Check
no
D2201
Is diode okay?
yes
1.2 No Power u-Com Failure
or
Enable source
Please Refer page 30 for Ref Number.
Board
BM5STY
no
Check
D2200 Is diode okay?
yes
Change D2201
Check 5V_MAIN DDCON (IC600)
Operation IC Ref
Voltage supply
LDO
IC2201
1.8V_EMMC
Change D2200
Check 3.3V_STBY.
G-board
52
SYS SET
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