LG KG110 - Earphone Trouble

4. TROUBLE SHOOTING
65
VMEM VMIC
VMEM
VMEM
VMIC_N VMEM VMEM
VMIC_ON
HOOK_DETECT
HEADSET_MIC _P
JACK_DETECT
HEADSET_SPK_P
C231
39p
R233
0
R231
100K
R235
NA
R232
0
C233
39P
IN
1
GND
3
NC
4
NO
6
VCC
2
COM
5
U204
NLAST4599DFT2G
R238
NA
R236
1K
+
C234
10u
C235
39P
R237
2.2K
R234
1M
4
3
1
52
+
-
OUT
VIN-
VIN+
U205
LMV7291MGX-NOPB
R240
510K
C232
39P
R239 0
1
3
4
2
5
J200
R243 4.7
SP204
.
VA204
AVL5M02-200
C237
39P
R242 0
R244
33K
C236 10u R241 4.7
C238
39P
SP203
.
VA203
AVL5M02-200
EAR JACK
VCC
GND
VA205
AVL5M02-200
J200
C236
R241 R244
R242
U204
4.12 Earphone Trouble
CIRCUIT DIAGRAM