BenQ BQ060B00 Service Manual page 27

II. System cannot be boot up
System can not be boot up
All power for U301
OK?
Yes
Y402 output 12
MHz OK?
Yes
Y403 output 32.768
KHz OK?
Yes
Y401 output 48
MHz OK?
Yes
U801 OK?
Yes
U602 OK?
Yes
End
NO
U301
NO
Y402
NO
Y403
NO
Y401
NO
Change U801 &
Reload code
NO
Change U602
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