LG 40LX570H Service Manual

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LGE Internal Use Only
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
9.2. External Speaker Out
(1) Connect external speaker to speaker out port with phone
jack on TV rear bracket.
(2) Check the Max. speaker output is 1W or not. Sine wave
with 1KHz will be displayed
(3) Check Both of the signal in speaker.
(only Power -> Fived 1W Default)
-> Check the input signal(1KHZ, Sine wave) and the
waveform of output by utilizing oscilloscope.
9.3. b_LAN Main board Check
[Only for XXLX570H series]
* Below b-LAN test procedure can be performed in DFTs of
SMT lines not Final Assembly.
9.3.1. Overview
It is LNET RF modem & FTG card
9.3.2. Equipment
(1) b-LAN Checker: UTC-1000 (with Cable accessory)
(2) Computer(for test result monitoring)
(3) Connection JIG
-Equipment connection map & b_LAN Check
(4) Check
- Setting JIG
1) Connect UTC-1000 Equipment to JIG device as a like
left picture
- Connection Line:
UTC-1000 TOP1 <--> Game port(RJ21)
-> TV-LINK CFG (Phone Jack)
UTC-1000 TOP2 -> JIG 11pin Connection
UTC-1000 RF1 <--> b-LAN RF IN
UTC-1000 LAN <--> PC LAN Port
- Working procedure
1) Connection
UTC-1000 LAN <--> PC LAN Port
UTC-1000 TOP1 <--> Game port(RJ21)
-> TV-LINK CFG (Phone Jack)
UTC-1000 RF1 <--> b-LAN RF IN
2) Power on JIG : Switch on front of the JIG
3) Test Start
UTC-1000 TOP2 <--> JIG 11pin Connection
4) Checking b-LAN MAC Address
Check whether it is same their address numbers or not
between b-LAN Label and on the pc address numbers.
* Checking JIG contents
(1) Check whether displaying all “Pass” or not at the number
3.4.6.7.9 contents of UTC-1000 on the PC
(2) Check “Version 6.27” of the 1. b-LAN Application version
(3) Check whether it is same their address numbers or not
between b-LAN Label and
(4) MAC Address on the pc.
5HFRPPHQGHG,QSXW6LJQDO
 5)N+]6LQHZDYH
Measuring point
Waveform of Oscilloscope

LG 40LX570H Specifications

General

Screen shape	Flat
Response time	9.5 ms
Display diagonal	40 \
Display brightness	225 cd/m²
Native aspect ratio	16:9
Native refresh rate	60 Hz
LED backlighting type	Direct-LED
Supported video modes	1080p
Contrast ratio (dynamic)	1000000:1
Contrast ratio (typical)	4000:1
Screen format adjustments	4:3, 16:9, Zoom
Viewing angle, horizontal	176 °
Supported graphics resolutions	1920 x 1080 (HD 1080)
Motion interpolation technology	-
3D	No
Cable lock slot type	Kensington
Tuner type	Analog & digital
Analog signal format system	NTSC
Digital signal format system	ATSC
Sound modes	Game, Music, Movie, News, Sports
Audio system	Clear Voice II
RMS rated power	20 W
Number of speakers	2
DVI-D ports quantity	0
USB 2.0 ports quantity	1
Product color	Black
Panel mounting interface	200 x 200 mm
AC input voltage	110 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	0.5 W
Power consumption (typical)	34 W
Package depth	163 mm
Package width	1070 mm
Package height	610 mm
Package weight	12300 g
Sustainability certificates	RoHS, ENERGY STAR
Cables included	AC

Weight and Dimensions

Depth (with stand)	282 mm
Height (with stand)	576.6 mm
Weight (with stand)	10400 g
Depth (without stand)	55.9 mm
Width (without stand)	912 mm
Height (without stand)	528 mm
Weight (without stand)	7480 g