Only For Training And Service Purposes - LG KC780 Service Manual

3. TECHNICAL BRIEF
HS_MIC_N
HS_MIC_P
VBAT
REMOTE_INT
JACK_DETECT
R311
USB_DP
12
REMOTE_ADC
R312
USB_DM
12
AXT520124
LGE Internal Use Only
VIO_2V62
NCS2200SQ2T2G
C301 R301
0.1u
1M
U301
5
VIN-
4
1 VCC
HOOK_DETECT
OUT 3 VIN+
GND
2
C302
R302
100p
330K
VAUDIO_2V5
R303
1.5K
C305 0.1u
R304 2.2K
C306 0.1u
C307 C308
C309 10u
C310 100p
27p
27p
TV_OUT
JACK_DETECT
RPWRON_EN
FSUSB30UMX U302
10 1
SEL HSD1+
9 2
VCC HSD2+
8 3
_OE D+
7 4
HSD1- GND
6 5
HSD2- D-
R313
HSO_L
200
R314
HSO_R
200
Figure 31 MMI 18pin connector circuit
18PIN IO CONNECTOR (ENRY0006501)
VBUS_USB
VCHG
FL301
OUT IN
GND2 GND1
ICVFP10181E301FR VIO_2V62
FB302
FB308
1000
R308 47
DSR
UART_TX
R309 47
UART_RX
R310 47
FL305
EVSC5S04F050
P6
6
C311
P3 3
2.2u
C319
39p
C321
39p
- 60 - Copyright © 2008 LG Electronics. Inc. All right reserved.
C303
2.2u VBAT
FL302
OUT IN
GND2 GND1
ICVFP10181E301FR
CN302
FB304
FB305
FB306 10
FB307 10
FL306 FL307
EVSC5S04F050 EVSC5S04F050
P6 P6
6 6
P3 3 P3 3

Only for training and service purposes

C304
24p
FM_ANT
19
1
2
3
2 : Headset MIC
4
5
4 : HSO_L
6
5 : HSO_R
7
6 : USB+
8
7 : USB-
9
8 : JACK_D
10
9,10 : BATT
11
12
11 : R/ON
13
14 12,13 : CHG
15
14 : DSR
16
15 : VUSB
17
16 : D/ TX
18
17 : D/ RX
20