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9. Flow Chart of Troubleshooting
9-1. Power On
' Power On ' does not work
Check the Battery Voltage
is more than 3.4V
U401 PIN57(PS_HOLD)
R407 = 2.6V?
Check the Clock at
OSC400=32.768KHZ?
L401(VREG_MSMC) =1.2V?
L402(VREG_MSME) = 1.8V?
C413(VREG_MSMP) = 2.6V?
C419(VREG_MSMA) = 2.6V?
C406(VREG_TCXO) = 2.8V?
Check for the clock at
C406= 19.2 MHz
Check the initial operation
END
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
No
Change the Battery
No
Check the PMIC related to PS_HOLD
No
Resolder OSC400
No
Check the PMIC
No
Check the PMIC
No
Check the clock generation circuit
(TCX200)
9-1
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