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4-1

SECTION 4

WIRELESS SUBWOOFER PART

CONTENTS

ONE POINT REPAIR GUIDE ............................................................................................................................ 4-2

1. POWER ON ERROR .............................................................................................................................. 4-2

2. WIRELESS CONNECTION .................................................................................................................... 4-4

WAVEFORMS OF MAJOR CHECK POINT ...................................................................................................... 4-5

1. CRYSTAL ................................................................................................................................................ 4-5

2. FLASH MEMORY ................................................................................................................................... 4-5

3. VOLTAGE ............................................................................................................................................... 4-6

4. AMP VOLTAGE ...................................................................................................................................... 4-7

5. PWM ....................................................................................................................................................... 4-8

6. LED ......................................................................................................................................................... 4-9

WIRING DIAGRAM .......................................................................................................................................... 4-11

BLOCK DIAGRAM .......................................................................................................................................... 4-13

CIRCUIT DIAGRAMS ...................................................................................................................................... 4-15

1. WOOFER SMPS & AMP - SMPS CIRCUIT DIAGRAM ....................................................................... 4-15

2. WOOFER SMPS & AMP - AMP CIRCUIT DIAGRAM .......................................................................... 4-17

CIRCUIT VOLTAGE CHART ........................................................................................................................... 4-19

PRINTED CIRCUIT BOARD DIAGRAMS ....................................................................................................... 4-21

1. WOOFER SMPS & AMP P. C. BOARD ............................................................................................... 4-21

Other manuals for LG SH4

Owner's Manual40 pages

Simple Manual8 pages

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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