LG LG-A270 - Page 66

4. TROUBLE SHOOTING
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Figure 4.10.2
R419
R455
J400
2
3
4
5
6
1
M5
M4
M3
M4F
M1
M6
L404
0.1uH
C422
12p
R421
100K
C411
470p
R422
100K
D400
100K
R423
VA
R424
100K
470p
C412
100n
L401
VA401
C416
39pF
C418
39pF
R528
1K
VA402
VA403
100ohmsR418
100ohmsR420
FB402
1800
FB403
1800
0.1uF
C513
C512
0.1uF
R540
10K
C419 10u
R542
1.5K
VMIC_BIAS_P
L402 0.1uH
L403 0.1uH
1800FB401
C406 47p
C414
39pF
FM_ANT
HS_MIC_P
HS_MIC_N
HS_L
GND
HS_R
HS_HOOK_DET
FM_ANT_GND
HS_JACK_DET
TP1
TP2
TP3