4. TROUBLE SHOOTING
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Only for training and service purposes
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START
(1) Check Output voltage(TP1)
TP1= 3.3V
No
Check the Soldering R104
START
Yes
(1) Check Output voltage(TP2)
TP2= 3.3V
Yes
No
Check the Soldering R114
If soldering is fine, replace U200
Check the Soldering LD100 & Q100
If soldering is fine, replace LD100
FINISH
Yes