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9. Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-1
9-1. Power On
No
Yes
Check the initial operation
Yes
No
Check the clock generation circuit
(related to TCX200)
Check for the clock at
R206= 19.2MHz
Yes
No
Check the U502(PMIC)
C517(VREG_MSME) = 1.8V?
C520(VREG_MSMP) = 2.6V?
C522(VREG_MSMA) = 2.6V?
C515(VREG_TCXO) = 2.85V?
Yes
Check the U502(PMIC)
C516(VREG_MSMC)
= 1.2V?
Yes
No
Resolder TCX200
Check the Clock at
OSC500=32KHZ
Yes
No
Check the PMIC related to PS_HOLD
U501 pin57(PS_HOLD)
= 2.6V?
Yes
No
END
Change the Battery
Check the Battery Voltage
is more than 3.3V
Yes
' Power On ' does not work