Samsung SGH-S730i Service Manual page 29

3-1-2. Initial
Initial Failure
The voltage at the C315=1.8V?
The voltage at the C317=2.9V?
The voltage at the C214=1.8V?
The voltage at the C216=1.6V?
The voltage at the VR200
"Low --> High" ?
The voltage is 2.9V
at the C308,C313,C316 ?
LCD Display OK ?
Sound operation OK ?
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YES
YES
YES
YES
YES
YES
END
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NO
NO
NO
NO
NO
NO
2-5
Flow Chart of Troubleshooting
Check the UCP301
(If it has some problem,
it has to be replaced.)
Check the U200
(If it has some problem,
it has to be replaced.)
Check the UCP301
(If it has some problem,
it has to be replaced.)
Check the UCP301
Check the LCD part
Check the Audio part