LG GB175 Service Manual page 55

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4.6.3 Checking Flow
Check R901 (TP8)
Check R901 (TP9)
Check LED Component
(LED800~LED809,
ignore LED802 & LED
803)
Start
= 2.8V ?
 
No
= Vbat ?
NO
YES
Change PCB
Yes
Replace U100 or Change PCB
YES
Replace U800
NO
Replace Component
(LED800~LED809, ignore
LED802 & LED 803)
-55-

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