LG SJ2 Service Manual

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

LG SJ2 Specifications

General

Style	Wireless Soundbar
Color	Black
Channels	2.1
Total Power	160 W
Speaker Units	-
Internal Memory	-
Radio Tuner	-
Wireless Connectivity	Bluetooth
Interface Connectors	Optical Input 1 ea
Sound Modes	Sports
Max Sound Pressure Level (SPL)	-
Signal to Noise Ratio	-
Frequency Response	-
Features	Crystal Amplifier Pro
Audio Processing	-
Water / Dust resistance	-
Power Supply	~ 50/60Hz
Power Consumption	-
Battery Life	-
Battery Capacity	-

Weight and Dimensions

Depth	3.9 in
Height	2.2 in
Width	25.9 in
Net Weight	3.75 lbs