Samsung SGH-E770 - Initial Operation Troubleshooting

SAMSUNG Proprietary-Contents may change without notice
SGH-E770 Flow Chart of Troubleshooting
2-4
This Document can not be used without Samsung's authorization
2-1-2. Initial
The voltage at the C311=1.8V?
The voltage at the C315=2.8V?
Initial Failure
ThevoltageattheVR200
" Low --> High" ?
There is 32.768KHz wave
form at the C214, C215 ?
The voltage is 2.8V
at the C312,C314,C315 ?
LCD Display OK ?
Sound operation OK ?
END
Check the UCP201
Check the UCP301
Check the LCD part
Check the Audio part
YES
NO
NO
NO
YES
YES
YES
YES
NO
NO
NO
YES
Check the UCP301
(If it has some problem,
it has to be replaced.)
Check the UCP301
(If it has some problem,
it has to be replaced.)