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SGH-X660 Flow Chart of Troubleshooting
2-
4
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2-1-2. Initial
Initial Failure
Yes
IS the pin #K9 of U102
"Low
→
High" ?
No
Check the U102
(if it has some problem, it is to be replaced.)
There is 32.768kHz wave
form at the C220 & C221
Yes
No
Check the OSC202
There is 24MHz wave form
at the OSC301 pin#1,3
Check the OSC301
LCD display is O.K
No
Yes
Yes
Check the LCD part
No
Sound operation O.K
Yes
No
Check the Audio part
END
Yes
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2
3