![background image](http://html.mh-extra.com/html/samsung/gt-i9300/gt-i9300_service-manual_1192600035.webp)
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.
8-8
8-3-2. Initial
Initial Failure
END
Check the AP Reset
AP_N_RST_IN(R504) = 1.8V(High)
Yes
Check the U500 and R504 (crack, open, etc.)
Check the oscillator clock waveforms.
32.768KHz : OSC500(TP213),
24Mhz : OSC400(C427)
Check the OSC500, OSC400 and R408.
(Crack, open etc.)
Check the output clock waveforms and frequency.
※
Test condition (Oscilloscope setting)
: 20.0us.div (time division)
Abnorma
l
Yes
Normal
No
Re-download SW the cell-phone.
Change UCP400,U501
Abnormal
Abnormal
Change PBA