Samsung GT-S5830 - Logic; Power on

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Level
3
Repair
8-4
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8-3.
LOGIC
8-3-1.
Power On
Power switch on
NG
Check the current
consumption
>= 100
mA?
Download
NO
Check the voltage and Resolder
U400
check
the initial operation
END
Resolder or Replace UCP300
Resolder OSC400
Check the PMIC
relatedtoPS_HOLD
Change the battery
Yes
Yes
Yes
Yes
NO
NO
C441(VREG_MSMC1)=1.2V?
C440(VREG_MSMC2)=1.2V?
C439(VREG_MSME)=1.8V?
C410(VREG_MSMP)=2.6V?
C411(VREG_MSMA)=2.6V?
Yes
NO
Check the clock at
OSC400
=32
KHz
?
NO
Check the TP_PS_
HOLD pin PS_HOL
D=2.6
V?
NO
Check the battery
voltage
>= 3.45?
Yes
Change the main PBA
NO