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9. Flow Chart of Troubleshooting
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9-1
9-1. Power On
' Power On ' does not work
Yes
Yes
No
Download again
Check the Voltage of Battery
more than 3.3V
No
Check the Battery
Yes
Check the related circuit
No
Voltage of C327 = VBAT?
Yes
No
Check the VCCD_1.8V,
VCCD_2.9V and
VCCD_1.2V_A of UCP200
Yes
Check VRF_2.9V of RFT100
No
Check the UCD300 and C334, C100,
C103
Yes
Yes
Yes
Check OSC100 and RFT100
No
Check CLK26M_DBB on C115
Freq = 26MHz
Check the initial operation
END
Check the related circuit
Check the current
consumption more than
100mA
KEY FPCB or KEY Dome
damaged?
Replace Key FPCB
Yes
No
