LG KP105 - Page 35

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
- 36 -
Figure 3-10-4 Main Microphone interface
MAIN_MIC
2.2K
R230
MIC201
OB4-15L42-C33L
1
2
1K
R218
R227
100ohm
33nF
C216
EVL5M02200 VA202 EVL5M02200 VA201
C226
C213
39p
100ohm
R225
10u
2.2K
R223
VMIC
39p
C214
33nF
C220
C219
39p
C227
39p
MIC_P
MIC_N
Figure 3-10-5 Headset interface
9,10 : BATT
FOR RADIO
5 : EAR_R
4 : EAR_L
I/O CONNECTOR
1608
7 : RXD
12,13 : CHG
8 : JACK_D
2 : AUDIO
FOR RADIO
6 : TXD
(25V, X5R, 1608)
11 : R/ON
EAR_MIC
(1608)
FOR RADIO
C307
39p
10p
1800FB302
10u
C305
C308
18p
C321
3p
C317
C320
39p
0.1uC301
FB301 1800
DNI
R316
100K
R306
3
CN302
1
2
1800FB303
R305
100K
C324
39p
C302
NA
R304
100K
2V8_VIO2V8_VIO
C316
18p
L301
270nH
VBAT
C314
1u
C313
56p
C318
10p
R301
1.5K
2V8_VIO
2V8_VIO
R302 2.2K
VCHARGE
C309 10u
FB304
NA
R303
FB305 1800
FB307
FB309
FB308
39p
C310
FB306
C315
4.7u
C311
39p
VBAT
C304 0.1u
VMIC
21
22
3
4
5
6
7
8
9
GU041-18P-E1000
1
10
11
12
13
14
15
16
17
18
19
2
20
39p
CN301
C319
10u
FM_ANT
BATT_TEMP
DSR
C303
AUXOP_FML
RXD
TXD
AUXOP_FMR
RPWRON
HS_MIC_P
HS_DET
HS_MIC_N