Earphone Trouble - LG KG245 Service Manual

4. TROUBLE SHOOTING

4.12 Earphone Trouble

TEST POINT
CIRCUIT
CLOSE TO EARJACK
AUXIN
JACK_DETECT
(GPIO_45)
C201
U201
Figure 4-19(a). Earphone Trouble
2V5_JACK
R201
1K
R204
C203
1.5K
0.1u
C206
22u
C209
NA
AUXOP
AUXIP
C216 0.1u
C219
39p
Figure 4-19(b). Earphone Trouble
C214
J201
2V8_VEXT
C201
HOOK_DETECT 0.1u
(GPIO_39)
C214 33u
R225 C220
1M 39p
- 80 -
2V5_JACK
U201
1 4
GND NC
2 3
Vin VOUT
NCP563Q25T1
C202
10u
(1608)
J201
7502-2.5G-SB1-A
(3 pole, ENJE0003501)