![background image](http://html.mh-extra.com/html/samsung/gt-i8320/gt-i8320_service-manual_1192494032.webp)
SAMSUNG Proprietary-Contents may change without notice
9. Flow Chart of TroubleShooting
9-1
This Document can not be used without Samsung's authorization
9-1. Logic Section
9-1-1 : No Power
Press PWR KEY
U505 pin4
output high?
Check pin1 and pin2
if One of them is low,
replace board
Q501 pin3
output low?
Replace Q501
NO
NO
YES
YES
D502 pin2
output high?
Replace D502
NO
Q500 pin1 VBAT
output > 3.5V?
Replace Q500
END
YES
NO
YES