Samsung PS42E7SX Service Manual page 17

④
CN740(Main Board)
↔
CN001(Power Button)
Pin No. Signal Pin No.
1 GND
2 LED
3 ST5V
4 GND
5 KEY_INPUT2
6
7
8 IR_7414
Samsung Electronics
⑤
CN501(Main Board) CN741(Main Board)
↔
Speaker Out CN1(Function Board)
Signal Pin No.
1 SPK_R+
1
2 SPK_R-
2
3 SPK_L+
3
4 SPK_L-
⑥
↔
Signal
KEY_INPUT1
KEY_INPUT2
GND
PCB Diagram
9-3