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Level 3 Repair
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-7
8-3-2. Initial
Initial Failure
END
Check the AP Reset
AP_N_RST_IN(R704) = 1.8V(High)
Yes
Check the U701 and R704 (crack, open, etc.)
Check the oscillator clock waveforms.
32.768KHz : OSC700(C705),
24MHz : OSC600(C657)
Check the OSC700, OSC600 and R684.
(Crack, open etc.)
Check the output clock waveforms and frequency.
※
Test condition (Oscilloscope setting)
: 20.0us.div (time division)
Abnormal
Yes
Normal
No
Re-download SW the cell-phone.
Change UCP600,U701
Abnormal
Abnormal
Change PBA