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9-1
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9. Flow Chart of Troubleshooting
9-1.Baseband
9-1-1. Power ON
Check the current consumption
Download again
'Power ON' Does not work
END
Charge the Battery
Check the PM401
Check the path of
R411 and PM401
Check R411
NO
NO
NO
NO
NO
YES
YES
YES
YES
NO
check the TCX100
YES
YES
Check the initial operation
Current consumption
≥
100mA ?
Check Voltage > 3.3V
Check R411 is High
The pin #3,5,6 of PM401
≥
3.3V ?
Check PM401
pin #32
≒
1.375 ?
pin #36
≒
1.8V ?
pin #50,56
≒
2.6V ?
pin #84
≒
2.85V ?
R142
≒
19.2MHz?
Vpp
≥
500mV?