Circuit Voltage Chart - LG SJ2 Service Manual

CIRCUIT VOLTAGE CHART

Location No. Pin Number
1 IR
2 GND
3 BK33
4 USB IN_LED
CN300
5 Audio IN_LED
6 BT_LED
7 Optical_LED
8 STANDBY LED
1 KEY1
2 KEY1
CN303
3 GND
4 GND
1 DCIN22V
2 DCIN22V
3 DCIN22V
4 DCIN22V
5 GND
6 GND
CN500
7 GND
8 GND
9 FL+
10 FL+
11 FL-
12 FL-
1 FR+
CN501
2 FR-
1 KEY
2 KEY
CN800
3 GND
4 GND
1 IR1
2 GND
3 BK3V3
4 USB LED
CN801
5 AUDIO LED
6 BT LED
7 Optical LED
8 STANDBY LED
Specifi cation Real Value
MAIN Board
3.1-3.6 V 3.3 V
0 V 0 V
3.1-3.6 V 3.3 V
0-3.6 V 0-3.2 V
0-3.6 V 0-3.2 V
0-3.6 V 0-3.2 V
0-3.6 V 0-3.2 V
0-3.6 V 0-3.2 V
0-3.6 V 0.3-3.3 V
0-3.6 V 0.3-3.3 V
0 V 0 V
0 V 0 V
8-27 V 23.1 V
8-27 V 23.1 V
8-27 V 23.1 V
8-27 V 23.1 V
0 V 0 V
0 V 0 V
0 V 0 V
0 V 0 V
4-15V V 11.5 V
4-15V V 11.5 V
4-15V V 11.5 V
4-15V V 11.5 V
4-15 V 11.5 V
4-15 V 11.5 V
KEY Board
0.3.6 V 0.3-3.3 V
0-3.6 V 0.3-3.3 V
0 V 0 V
0 V 0 V
LED Board
3.1-3.6 V 3.3 V
0 V 0 V
3.1-3.6 V 3.3 V
0-3.6 V 0-3.2 V
0-3.6 V 0-3.2 V
0-3.6 V 0-3.2 V
0-3.6 V 0-3.2 V
0-3.6 V 0-3.2 V
3-21 3-22