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9. Flow Chart of Troubleshooting
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9-
1
9-1. Power On
No
Not OK
Not OK
Not OK
Not OK
Check VPERM_3.0V,
VANA_2.85V, VRF_2.85V,
VSIM_3.0V, VMEM_1.8V,
VGPIO_2.8V of UME200
Check the UCP200
END
OK
Check the pin 1 of
OSC200 produces clock
signal
Solder OSC200 again
OK
Check the R312
concerning about Jig
Power on
Solder R312 again
OK
Is Power On working?
OK
Repeat sequence
Yes
Change battery
Check battery voltage
is higher than 3.3V
Yes
'POWER ON' does not work