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SGH-E715 Flow Chart of Troubleshooting and Circuit Diagrams
2-
2
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2. System Initial
The pin #9 of U100 = 1.8V
and pin #11 of U100=2.8V?
Initial Failure
Is the pin #19 of U100
" Low --> High" ?
There is 32.768KHz wave
form at the C324, C325 ?
Is the pin #25 of U100
is High ?
The voltage is "High"
at the C106,C112,C113 ?
LCD Display OK ?
Sound operation OK ?
END
Check the U303
Check the U300
Check the U100
Check the LCD part
Check the Audio part
YES
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
NO
NO
YES
Check the U100
(If it has some problem,
it has to be replaced.)
Check the U100
(If it has some problem,
it has to be replaced.)
