Only For Training And Service Purposes - LG KF350 Service Manual

HOOK_DETECT
JACK_DETECT
2V62_VIO
2V5_VAUDB
R301
U301
NCS2200SQ2T2G 1M
5
4 VIN-
R302
1 VCC
HOOK_DETECT
OUT 3 VIN+
GND
47
2
R303
C301
220K
120p
R304
1.5K
C302
27p
HS_MIC_N
C303
C304
22n
R308
10p
HS_MIC_P
C305
C306
22n
27p C307
10u
Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

18PIN MULTIPORT RECEPTACEL
VUSB_USB
JACK_TYPE
HSO_L
HSO_R
USB_DP
USB_DM
RPWR
RPWRON_EN
DSR
DSR
UART_TX
UART_TX
UART_RX
UART_RX
2V62_VIO
VUSB
DNI
2.2K
R309
JACK_TYPE
R312 36
USB_DP
R314 36
USB_DM
JACK_DETECT
RPWRON_EN
DSR
UART_TX
UART_RX
L301
HSO_L
C310
100nH
27p
L302
HSO_R
100nH
C311
27p
Figure 22. MMI 18Pin Connector circuit
VCHG VBAT
L103
CN100
270nH
21
19
1
2
3
2 : Headset MIC
4
3 : Jack type
5
4 : CTS/HSO_L
6
5 : RTS/HSO_R
7
6 : USB+/Remote_INT/TXD
8
7 : USB-/Remote_ADC/RXD
9
8 : JACK_D
10
11
9,10 : BATT
12
11 : R/ON
13
14
12,13 : CHG
15
14 : DSR
16
15 : VUSB
17
16 : D/ TX
18
17 : D/ RX
20
22
GU041-18P-E1000
MAIN TO KEY CONNECTOR
2V5_VAUDB
FB301 1800
FB302 1800
FB303 1800
FB304 1800
FB305 1800
FB306 1800
FB307 1800
R322 47
R325 47
R327 47
- 53 -
3. TECHNICAL BRIEF
FM_ANT
C103
10p
VCHG
FL301
OUT IN
GND2 GND1
ICVFP10181E301FR
2V62_VIO
FM_ANT
FLIP
KEY_BACKLIGHT
LGE Internal Use Only
CN301
1 44
2 43
3 42
4 41
5 40
6 39
7 38
8 37
9 36
10 35
11 34
12 33
13 32
14 31
15 30
16 29
17 28
18 27
19 26
20 25
21 24
22 23
GB042-44P-H10-E3000