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Level 3 Repair
8-3. LOGIC
8-3-1. Power On
Power switch on
Check the current
consumption
>= 100mA?
Check the battery
voltage
>= 3.45?
Check the TP_PS_
HOLD pin PS_HOL
D = 2.6V?
Check the clock at
OSC400 = 32KHz ?
C439(VREG_MSMC1)=1.3V?
C438(VREG_MSMC2)=1.3V?
C437(VREG_MSME)=1.8V?
C414(VREG_MSMP)=2.6V?
C415(VREG_MSMA)=2.6V?
Check the clock
C106 = 19.2Mhz ?
Check the initial operation
NG
Yes
Yes
Yes
Yes
Yes
Yes
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
NO
NO
Change the battery
NO
related to PS_HOLD
NO
NO
NO
Check the clock generation circuit
8-4
Download
Check the PMIC
Resolder OSC400
Check the U401
TCX100
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