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9. Flow Chart of Troubleshooting
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9-1
9-1. Power On
No
No
Not OK
Not OK
Not OK
Check the 'Vcc_SYN' of
U101 = 2.8V
Resolder PMIC or U101
END
OK
Check the pin 3 of
TCX101 is clock signal
Resolder TCX101, C120
Yes
Check the pin 16 of
U101 is 13M pluse signal
Resolder TCX101, U101, C133, R123
R124
OK
Is Power On working?
OK
Repeat sequence
Yes
Change battery
Check battery voltage
is more than 3.3
Yes
Power on does not work
