Advertisement
8)
Trouble 8: ALS-sensor is not worked
Possible Cause:
1) Check the power VDD28_6583 is in proper level
2) Check the connector CN1303 is ok
3) Check the soft fpc is well connected between main board and
small board
4) Change the small board or soft fpc
9)
Trouble 9: NO network
Possible Cause:
1) make sure the RF Antenna is in well state
2) check the power VSIM1_PMU is in proper level
3) measure
waveform is good
4) change component SIM1201
5) Check the RF part's circuit is ok
10)
Trouble 10: can't read SD card
Possible Cause:
1) Check VMCH_PMU is in proper level
2) Measure the waveform of MC1CK,MC1DA0—MC1DA3,check the
waveform are good
3) change component SD1201
11)
Trouble 11: CTP can't touch or no response
Possible Cause:
1) Check CN1101 is ok
2) Check the power VGP5_PMU,VDDIO_CTP are in proper level
3) Check U1101's welding is correct
4) Check the soft fpc well connected between the main board and
the TP
5) Change another TP
the waveform
of
SIM1_DATA,SIM1_CLK,check
the
Advertisement
