Only For Training And Service Purposes - LG KP105 Service Manual

3. TECHNICAL BRIEF
MAIN_MIC
MIC_P
MIC_N
HS_MIC_N
HS_MIC_P
2V8_VIO
R303
NA
AUXOP_FML
AUXOP_FMR
TXD
RXD
2V8_VIO
DSR
FB305
BATT_TEMP
LGE Internal Use Only
VMIC
R218
1K
R223
2.2K
C216
R225
100ohm
33nF
C220
R227
100ohm
33nF
R230
2.2K
Figure 3-10-4 Main Microphone interface
VMIC
R301
1.5K
R302 2.2K
C301 0.1u
C302 C303
NA 10u
C304 0.1u
C307
2V8_VIO
39p 2V8_VIO
R305
R304
100K 100K
C308 10u
C309 10u
FB306
FB307
HS_DET
C310 C311
39p 39p
RPWRON
R306
100K
FB309
C315
4.7u
(1608)
VBAT
CN302
1800
3
2
1
C324 C318 C319 C320 C321
39p 10p 39p 3p 18p
Figure 3-10-5 Headset interface
C213
C214
39p
10u
C219
39p
C226 C227
39p 39p
I/O CONNECTOR
VCHARGE
VBAT
CN301
270nH
21
FOR RADIO 19
1
FB301 1800
2 2 : AUDIO
3
FB302 1800
4 4 : EAR_L
FB303 1800
5 5 : EAR_R
6
6 : TXD
7
FB304 7 : RXD
8
8 : JACK_D
9
9,10 : BATT
10
11
11 : R/ON
FB308 12
12,13 : CHG
13
14
(25V, X5R, 1608)
15
C313 C314
16
C316 C317 1u 56p 17
18p 39p 18
20
22
GU041-18P-E1000
Copyright © 2008 LG Electronics. Inc. All right reserved.
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MIC201
1
2
OB4-15L42-C33L
EAR_MIC
FM_ANT
C305
R316
L301
DNI
10p
1608 FOR RADIO
FOR RADIO

Only for training and service purposes