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4. TROUBLE SHOOTING
4.11 Earphone (Headset mic) Trouble
TEST POINT
C216
FB201
FB200
CIRCUIT
HEADSET MIC
HEADSET_SPK_OUT_P
LGE Internal Use Only
R201
C200 C206 R203
2V8_VEXT
2V5_VMIC
R201
R202
2K
NA
C200
0.1u
AUXIN
C202
C201
R203
10u
NA
1.8K
C206
0.1u
AUXIP
C209
39p
C216
22u
C218
2V8_VEXT
39p
JACK_DETECT
R231
R215
NA
100K
R216
47
(UART_TxD)
USC_2
R217
47
(UART_RxD)
USC_1
PIF-UNION
USAGE
JIG PORT
UART
S/W Download
MON PORT
(18pin 16, 17)
/ Calibration
DEBUG_TX/RX
UART PORT
S/W DEBUG???
(18pin 6, 7)
R204
HOOK_DET
0
C207
NA
VBAT
2V8_VEXT
R230
R210
R212
NA
100K
100K
FB200
FB201
GENIE_TX
GENIE_RX
R214
RPWRON
47
DSR_DET
Copyright © 2008 LG Electronics. Inc. All right reserved.
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J200
21
19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
20
22
C221
CN200
1u
(25V, 1608)
Only for training and service purposes
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