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10. Flow Chart of Troubleshooting
10-
1
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10-1.Baseband
10-1-1. Power ON
'Power On' does not work
Check the Vbat
Voltage >=3.4V
Download again
Charge the Battery
VCCD_2.9 of UCD102
>=2.9V
Check U105
There is 26MHz wave
form at the OSC601
pin#1,3
Check the clock generation
circuit(related to OSC601)
Check the initial operation
END
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Check the pin of UCD102
Check the clock signal at pin#3 of OSC601
Check the Current
consumption
>= 100mA
VRF_2.9, VCCA_2.9
of UCD102 >= 2.9V
VCCD_1.6 of U105
>=1.6V
No
Check UCD102
Check UCD102
1
2
1
3