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8-3-2. Initial
Initial Failure
Re-download SW the cell-phone.
Check the PMIC Reset
EXTRESET_N(R5022) =
Check the oscillator clock waveforms.
32.768KHz : OSC7000(C7042),
24MHz : OSC6000(C6096)
Change UCP6001,U7002
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Yes
Abnormal
VBATT(High)
Yes
Normal
Abnormal
Change PBA
END
No
Check the U5005 and R5022 (crack, open, etc.)
Check the OSC7000, OSC6000 and R6086.
(Crack, open etc.)
Abnormal
Check the output clock waveforms and frequency.
※ Test condition (Oscilloscope setting)
: 20.0us.div (time division)
8-7
Level 3 Repair
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