Earphone Trouble - LG S5000 Service Manual

4.11 Earphone Trouble

Test Points
CIRCUIT
2V8_MV 2V5_JACK
U200
1 4
GND NC
2 3
Vin VOUT
10u
C201
NCP563Q25T1
C200
10u
C208
39p
1
(GPIO_10) JACK_DETECT
OUT
U201
LMV7291MGX-NOPB
C200 C209
U200
U201
Figure 4-20
HEADSET JACK
C202
R202
0.1u
20K
AUXIN
C207
R205
2V8_MV 2V8_MV
NA
NA
R208
1M
AUXOP
5
4 VIN-
VCC
AUXIP
3 VIN+
GND
2
R215
330K
4. TROUBLE SHOOTING
R209
J201
2V5_JACK
R201
1K
R230 1.5K R203 0
C205 C206
22u
39p
C209
10u
C240 0.1u R211 4.7
C232
R213
82p 1M
- 81 -
(GPIO_40)
HOOK_DETECT
R209
4.7
VA204 VA203 VA201
C230 C214
82p 82p
5
1
3
4
2
J201