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Level 3 Repair
8-3-1. Power On
' Power On ' does not work
Check the Battery Voltage
is more than 3.7V
(TP:C108, C109, C212,C308)
PMU_VIO = 2.8V?
(TP:C207, C315)
Check the Clock at
UCP200 L16pin
(CLK32K)=32KHZ
(TP:R103)
+VCORE_1.25V
= 1.25V?
(TP:C204, C214, L201)
END
Yes
Yes
Yes
Yes
Yes
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Change the Battery
No
(Because of batt. power low)
Check the Main Chip related to
No
VGPIO_2.8V (TP:C207, C315)
(to lookover the Chip damage)
Check the Main Chip
No
(to lookover the Chip damage)
(TP : R103 / look over the waverform
using the oscilloscope)
Resolder C204, C214 and L201
No
(to confirm coming out power V_core)
8-6
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