Earphone detect problem
Level of pin 4 of CON401
about 1.6V?
Re-soldering R206, R207
No
Yes
1
Level of R206, R207
about 2.4V?
5
Check soldering
U404
Check working
U404
Re-solder U404
Replace U404
4
Yes
5
Earphone sending path problem
Earphone detect
problem
Earphone
sending
path problem
3
Level pin4 of CON401
is about 1.6V
Level of C232 is
About a few tens
or hundreds VAC?
Re-solder
R206, R207
Re-solder
C232
Does it work well?
Re-download
software
Does it work well?
4
Change main
board
No
No
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
No
45
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Содержание LG-MC2670
Страница 1: ...LGE LG Electronics Inc CDMA PORTABLE CELLULAR PHONE LG MC2670 SERVICE MANUAL Z 3 X B O X C O M ...
Страница 17: ...LG MC26 70 DCN Mode Graph 2 1 2 1763 04MHz DCN384 14 Z 3 X B O X C O M ...
Страница 21: ...LG MC2670 Waveform DP101 Pin 5 Graph 2 1 4 c DP101 Pin 8 Graph 2 1 4 b 18 Z 3 X B O X C O M ...
Страница 32: ...LG MC2670 Circuit Diagram 29 Z 3 X B O X C O M ...
Страница 33: ...LG MC2670 Figure 2 3 1 PMIC PM6610 FUNCTIONAL BLOCK DIAGRAM 2 3 Logic Part Trouble 30 Z 3 X B O X C O M ...
Страница 55: ...LG MC2670 Appendix Z 3 X B O X C O M ...
Страница 56: ...Z 3 X B O X C O M ...
Страница 58: ...Z 3 X B O X C O M TX Line RX Line Local Line RD2670 ...
Страница 59: ...Z 3 X B O X C O M TX Line RX Line MIC Line SPK Line RD2670 ...
Страница 60: ...Z 3 X B O X C O M RD2670 ...
Страница 61: ...Z 3 X B O X C O M SPK Line MIC Line RD2670 ...
Страница 65: ...Description LG Part No Q ty MAIN PCB SPFY0083001 1 2 PCB Z 3 X B O X C O M ...