LG PRADA KE850 - Voice Recorder; Recording Voice Memos

3. TECHNICAL BRIEF
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Figure 23 Multi port switch1- USART/ REMOTE KEY/ USB
Figure 24 Multi port switch2- USART/ Headset stereo
GND
IN
OUT
MULTI_PORT_1
USB_VBUS
MULTI-PORT SWITCH 1
USB_DP
USB_DM
REMOTE_ADC
JACK_DETECT
REMOTE_INTMULTI_PORT_0
R213
10K
10K
R209
D+
1
D+IC
6
3
D-
4
D-IC
GND
2
VBUS
5
U203 STF203-22-TC
VUPU
VBAT
R203
10K
R210
10K0.1u
C204
VBAT
B
C
E
RN1307
Q201
R208 10
COM1
4
COM2
COM3
8
12
COM4
6
GND
IN1_2
2
10
IN3_4
1
NC1
NC2
5
9
NC3
NC4
13
NO1
15
NO2
3
7
NO3
NO4
11
14
V+
DG2799DN-T1-E4
U202
17
BGND
16
10R206
2V72_IO
TXD_0
JACK_DETECT
USBDP
USBDM
MULTI_PORT_0
MULTI_PORT_1
RXD_0
REMOTE_INT
REMOTE_ADC
USB_VBUS
MULTI-PORT SWITCH 2
10R214
10R215
C202 220u
39p
C206
39p
C205
VBAT
39p
C209
C260
C261 2.2u
2.2u
39p
C210
10R205
C208
39p
R202
10K
220u
IN3_4
NC1
1
5
NC2
NC3
9
13
NC4
15
NO1
3
NO2
NO3
7
11
NO4
V+
14
C201
U201
DG2799DN-T1-E4
17
BGND
COM1
16
COM2
4
8
COM3
COM4
12
GND
6
IN1_2
2
10
C207
39p
2V72_IO
0.1u
C203
R207 10
RCV_N
RCV_P
HEADSET_R
HEADSET_L
HSO_L
HSO_R
SPK_N
MULTI_PORT_2
MULTI_PORT_3
RTS_0
CTS_0
SPK_RCVN
JACK_DETECT
SPK_RCVP
SPK_P
SPK_RCV_EN