Flow Chart of Troubleshooting
3-5
3-1-2. Initial
Initial Failure
Yes
①
Check VCCD,
VCCD_1.8V of U300
"High" when the phone
is boot on`
No
Check
U300
Yes
②
Check
the HP_CORE_1.6V of
U305 is "High"
No
Check
U305
③
Yes
No
Check
CN305
and LCD part
LCD display is O.K?
Yes
Check audio part
Sound is O.K?
No
Yes
END
Содержание SGH-U100
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