LG SJ8S Service Manual

Copyright © 2017 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
4-144-13
Location No. Description Pin Number Specifi cation Real Value (#1, #2)
WIC601
IC,
Sound/Audio
Processor
VDD _IO:
#17, 43, 52
VDD_IO:
2.97 V ~ 3.63 V
3.37 V 3.37 V
VDD_CORE:
#6, 25, 63
VDD_CORE:
1.08 V ~ 1.32 V
1.27 V 1.27 V
VDD_PLL: #68
VDD_PLL:
1.08 V ~ 1.32 V
1.28 V 1.28 V
WIC701
IC,
Audio Amplifi er
PVDD:
#29, 30, 31,
36, 37, 38
PVDD:
12 V ~ 34 V
20.61 V 20.64 V
GVDD: #1, 22
GVDD:
10.8 V ~ 13.2 V
12.41 V 12.42 V
VDD: #2
VDD:
10.8 ~13.2V
12.47 V 12.47 V
WIC703
IC,
Analog Switch
VIN: #1
VIN:
2.8 V ~ 5.5 V
3.42 V 3.42 V
VOUT: #6
VOUT:
2.8 V ~ 5.5 V
3.41 V 3.41 V
WIC704
IC,
DC,DC Converter
VIN: #7
VIN:
4.5 V ~ 45 V
34.61 V 34.64 V
SW: #1
VOUT:
0.8 V ~ 42 V
12.53 V 12.53 V
WIC705
IC,
DC,DC Converter
VIN: #3
VIN:
4.5 V ~ 17 V
12.52 V 12.52 V
SW: #2
VOUT:
0.76 V ~ 7 V
3.42 V 3.42 V
CIRCUIT VOLTAGE CHART

LG SJ8S Specifications

General

Subwoofer	Wireless
Audio Decoding	Dolby Digital, DTS Digital Surround
HDMI Input	1
Connectivity	Bluetooth
Sound Modes	Standard, Cinema, Music
HDMI Output	1
Type	Soundbar with Wireless Subwoofer
Channels	4.1 ch