LG SH4 Service Manual

4-4
ONE POINT REPAIR GUIDE
2. WIRELESS CONNECTION
Wireless connection malfunction
2-1. 3.3 VA
1) Check 3.3 VA at WFB604.
2-2. Connection
1) Wireless module connection closely.
2) Implement Wireless Factory Reset.
 MAIN SET : Soundbar vol MIN and push Mute key (sustain 3 ~ 5 seconds).
 Subwofer :  Push Pairing key on the back case of the wireless subwoofer.
   The LED of of the wireless subwoofer blink red and green, pull out power cord.
   The main set and the wireless subwoofer are factory reset mode, then power on.
< Woofer SMPS & AMP board top view >
WFB604
WFB604
Wireless module
Wireless module
Connection check
Connection check

LG SH4 Specifications

General

Audio decoders	DTS Digital Surround, Dolby Digital
RMS rated power	300 W
Audio output channels	2.1 channels
Audio Return Channel (ARC)	Yes
Number of tweeter drivers	2
Soundbar speaker RMS power	120 W
Subwoofer type	Active subwoofer
Subwoofer location	Separate
Subwoofer connectivity	Wireless
Cables included	Optical
Receiver included	-
FM radio	No
Product color	Black
Audio formats supported	FLAC, LPCM, MP3, OGG, WAV, WMA
Consumer Electronics Control (CEC)	SimpLink
Magnet type	Ferrite
Apple docking compatibility	Not supported
Power consumption (standby)	0.5 W
Power consumption (typical)	22 W
HDMI in	1
Bluetooth version	4.0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Connectivity technology	Wired & Wireless
Package depth	223 mm
Package width	946 mm
Package height	373 mm
Package weight	9000 g

Weight and Dimensions

Depth	85 mm
Width	890 mm
Height	53 mm
Soundbar weight	2340 g
Subwoofer depth	320 mm
Subwoofer width	171 mm
Subwoofer height	252 mm
Subwoofer weight	4200 g