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3. Flow Chart of Troubleshooting
3-1
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3-1.Baseband
3-1-1. Power ON
'Power On' does not work
Voltage >=3.3V
Download again
Charge the Battery
The pin 3 of D502 is
high?
Check D502
check the PMIC output
voltage (R505, R506,
R512, R513, R524)
check the TCX101
19.2Mhz?
Check the clock generation circuit
(related to TCX101)
Check the initial operation
END
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Check the current consumption
Check the Vbat Voltage
Current consumption
>= 100mA
check the PMIC
No