LG SN4A User Manual

3-28
Copyright © 2021 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
3. TACT KEY
FIG 3-2. Press Function Key
0.72 ~ 0.82 V
FIG 3-1. Press Power Key
1 ~ 1.13 V
7
7
FIG 3-3. Press VOL- Key FIG 3-4. Press VOL+ Key
0.424 ~ 0.485 V
0 V
7 7
7
R117
100
KEY
AMP_PROTECT
AMP_SD/OTW
DC_DETECT
AMP_CLIP0
MTDO
R163
100
MTMS
R162
100
R161
100
R160
100
R159
100
R158100
MTCK
R120
0
R119
0
DOWNLOAD
RESET
MTDI
IC101
89
P5.2/XT2IN
90
P5.3/XT2OUT
91
TEST/SBWTCK
92
PJ.0/TDO
93
PJ.1/TDI/TCLK
94
PJ.2/TMS
95
PJ.3/TCK
96
RST/NMI/SBWTDIO
97
P6.0/A0
98
P6.1/A1
99
P6.2/A2
100
P6.3/A3
R183
100
R184
100
DGND
RA01
680
RA03
1K
RA02
820
RA00
CA00
100nF
SWA00
1
2
3 4
SWA01
1
2
3 4
SWA02
1
2
3 4
SWA03
1
2
3 4
SWA04
1
2
3 4
RA04
RA05
750
RA06
820
POWER
FUNC.VOL+ VOL-
WIFI

LG SN4A Specifications

General

Total Power	300W
Channels	2.1
Subwoofer	Wireless
Wireless Connectivity	Bluetooth 4.0
USB Port	Yes
Remote Control	Yes
Connectivity	Optical
Sound Modes	Standard
Audio formats	Dolby Digital, DTS