18Pin Multi Media Interface Connector - LG KE820 Service Manual

3. TECHNICAL BRIEF
TF_PWR_EN
TF_DETECT

3.19. 18pin Multi Media Interface connector

Table 11 Multi media interface pin assign
Pin Function
1 FM_ANT
2 HS_MIC
3 JACK_TYPE
4 HS_OUT_L / CTS
5 HS_OUT_R / RTS
TXD / USB_DP /
6
REMOTE_INT
RXD / USB_DM /
7
REMOTE_ADC
8 JACK_DETECT
9 VBAT
10 VBAT
11 RPWRON
12 VCHG
13 VCHG
14 DSR
15 VBUS_USB
16 TX_DEBUG
17 RX_DEBUG
18 GND
Q1 NTJD4105CT1G
1 S1 D1 6
2 G1 G2 5
3 D2 S2 4
R133
100K
TF_DAT2
TF_DAT3
TF_CMD
TF_CLK
TF_DAT0
TF_DAT1
R183 47
C156
1000p
Figure 34 Micro SD socket circuit with power control
KE820/KG99 MMI
Description
FM radio antenna / Audio ground
Headset microphone signal
Accessory type detect
Headset left sound / CTS
Headset Right sound / RTS
USART / USB/ Remote control interrupt
USART / USB/ Remote control Key ADC
Headset detect (active low)
Battery voltage
Battery voltage
Remote power on (active high. 2.8V)
Charger voltage
Charger voltage
N.C.
USB VBUS
Trace TX data(Debug)
Trace RX data(Debug)
Power GND
2V85_CARD 2V72_IO
R130 100K
R132
100K
R134 R135 R136 R137
100K 100K 100K 100K
C142 C143
22p 1uF
- 60 -
S100
SCHA1B0102
DAT2_RSV
CD_DAT3_CS
CMD_DI
VDD
CLK_SCLK
VSS
DAT0_DO
DAT1_RSV
DETECT
COMMON
DUMMY1
DUMMY2