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10. Flow Chart of Troubleshooting
10-1 BASEBAND
10-1-1. Power ON
'Power On' does not work
Check the current consumption
Current consumption
>= 100mA
Check the Vbat Voltage
Voltage >=3.3V
The pin 3 of D400 is
high?
check the PMIC output
voltage (C413, C414,
C420, C421, C427)
check the TCX200
19.2Mhz?
Check the initial operation
END
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
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Charge the Battery
Check D400
check the PMIC
Check the clock generation circuit
(related to TCX200)
10-1
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