Initial Failure - Samsung GT-N7100 Service Manual

Initial Failure

Re-download SW the cell-phone.
Check the AP Reset
AP_N_RST_IN(R503) = 1.8V(High)
Check the oscillator clock waveforms.
32.768KHz : OSC500(C506),
24Mhz : OSC400(C443)
Change UCP400,U501
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Yes
Abnormal
Yes
Normal
Abnormal
Change PBA
END
No
Check the U500 and R503 (crack, open, etc.)
Check the OSC500, OSC400 and R416.
(Crack, open etc.)
Abnorma
Check the output clock waveforms and frequency.
l
※ Test condition (Oscilloscope setting)
: 20.0us.div (time division)
8-3
Level 3 Repair