Level 3 Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-7
8-3-2. Initial (Lock up)
Initial Failure
END
Check the PMIC_PS_HOLD
TP303 = 1.8V(High)
Check the U400 (Crack, Open, etc.)
Check the Clock OSC400(C401)
Is that frequency 19.2Mhz?
Change the OSC400
If OSC400 does not still work, Change the U400
This problem is internal oscillator of U400
※
Test condition (Oscilloscope setting)
: 20.0us.div (time division)
Abnormal
Yes
Normal
No
Re-download SW the phone.
Change UCP300
Abnormal
Abnormal
Change PBA
