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SAMSUNG Proprietary-Contents may change without notice
7. Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
7-1
7-1. Power On
Yes
Yes
Check the initial operation
Yes
No
Check the clock generation circuit
(related to OSC201)
Check for the clock at
C407= 19.2MHz
Yes
No
Check the PMIC
C415(VREG_MSME) = 1.8V?
C421(VREG_MSMP) = 2.6V?
C423(VREG_MSMA) = 2.6V?
C433(VREG_TCXO) = 2.85V?
Yes
No
Check the PMIC
C413(VREG_MSMC) =
1.375V?
Yes
No
Resolder XTAL401
Check the Clock at
XTAL401=32.768KHZ
Yes
No
Check the PMIC related to PS_HOLD
U401 pin57(PS_HOLD)
= 2.6V?
Yes
No
END
Change the Battery
' Power On ' does not work
Check the Battery Voltage
is more than 3.3V