LG SJ4Y Service Manual

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4-6

Only for training and service purposes.

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 :  Press Pairing button on the rear 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

Wireless module

Connection check

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General

Audio decoders	Dolby Digital
RMS rated power	300 W
Audio output channels	2.1 channels
Audio Return Channel (ARC)	Yes
Soundbar speaker RMS power	120 W
Subwoofer type	Active subwoofer
Receiver included	No
Power consumption (standby)	0.5 W
Power consumption (typical)	20 W
HDMI in	1
HDMI version	1.4
Bluetooth version	4.0
Number of HDMI outputs	-
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
Digital audio coaxial in	0
Apple docking compatibility	Not supported
Product color	Black
Consumer Electronics Control (CEC)	SimpLink