Samsung HT-C550 Service Manual page 22

6-2-1 Pin Connection
1 FCON1
TO MAIN FFC(ST)
Pin No. Signal Pin No.
1 VP30V 17
2 VFD_N27V 18
3 VFD_N27V 19
4 VFD_CLK 20
5 VFD_DO 21
6 VFD_CE 22
7 VFD_GND 23
8 D5V 24
9 D5V 25
10 DGND 26
11 KEY_SCL 27
12 KEY_SDA 28
13 KET_INT 29
14 N_RESET 30
15 AUX_L 31
16 AUX_R 32
Samsung Electronics
2 U1
TO TOUCH KEY (ST)
Signal Pin No. Signal
1 TM+
DGND
2 TM-
ST5V
3 ND
TEST
4 OPSW
NC
5 CLSW
REMC
6 SL-
D_P
9 SP-
D_N
AUX_SENS
MIC_SENS
AGND
12V
MIC_MUTE
BUZZER
MIC_SIG
MIC_SIG
AGND
PCB Diagram
6-3