BenQ BQ060B00 Service Manual page 26

Main board trouble shooting flowchart
I. Cannot Power On
Can not Power On
Battery OK?
SW101 OK?
Yes
J102 Pin OK?
Yes
NET: Li-BAT
Voltage>3.45V OK?
Yes
C112 Voltage>3.45V
OK?
Yes
C218 Voltage=3.3V?
Yes
C216 Voltage=1.8V?
Yes
C215 Voltage=1.3V?
Yes
End
NO
Change battery
NO
Change SW101
NO
Change J102
Plug in adaptor and re-
NO
charge the battery
NO
U102 Pin3=LOW?
Yes
Change U102
NO
Change L201
NO
Change L202
NO
PWR_EN=High
Yes
Change L203
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NO
Change battery
NO
Re-load system code
NO
Re-load system code
Yes
Yes