LG 32LN540B Service Manual

Normal
audio
Y
N
Move to No
video/No audio
No video
Normal audio
Check Back Light
On with naked eye
On
Y
N
Check Power Board
12v,3.5v etc.
Normal
voltage
Y
N
Replace T-con Board
or module
Repair Power Board
or parts
Check Power Board 24v output
Normal
voltage
Y
Replace Inverter
or module
N
Repair Power
Board or parts
End
Always check & record S/W Version and White
Balance value before replacing the Main Board
Replace Main Board
Re-enter White Balance value
※Precaution
Established
date
Standard Repair Process
Revised date
1/14
LCD TV
Error
symptom
A. Video error
No video/ Normal audio
☞A4 ☞A1
☞A2
☞A6 & A3
First of all, Check whether all of cables between board is inserted properly or not.
(Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable,,,)
2012. 01 .14
Copyright ⓒ 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only

LG 32LN540B Specifications

General

Screen shape	Flat
Response time	- ms
Display diagonal	32 \
Display brightness	- cd/m²
Display resolution	1360 x 768 pixels
Native aspect ratio	16:9
Native refresh rate	50 Hz
LED backlighting type	Direct-LED
Display diagonal (metric)	81.2 cm
Supported graphics resolutions	1360 x 768 (WXGA)
Motion interpolation technology	MCI (Motion Clarity Index) 100
3D	No
Annual energy consumption	57 kWh
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	0 - 85 %
Operating relative humidity (H-H)	0 - 80 %
Tuner type	Analog & digital
Analog signal format system	-
Digital signal format system	DVB-C, DVB-T
Audio system	Virtual Surround
RMS rated power	20 W
Number of speakers	2
HDMI version	1.4
DVI-D ports quantity	0
USB 2.0 ports quantity	1
Audio formats supported	AAC, AC3, HE-AAC, MP3, PCM
Image formats supported	JPG, JPS, MPO
Video formats supported	DIVX, MPEG
Product color	Black
Mercury content	0 mg
Panel mounting interface	200 x 100 mm
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	12.3 W
Power consumption (typical)	39 W
Cables included	AC
Operating temperature (T-T)	0 - 40 °C

Weight and Dimensions

Depth (with stand)	207 mm
Height (with stand)	497 mm
Weight (with stand)	6700 g
Depth (without stand)	79 mm
Width (without stand)	738 mm
Height (without stand)	437 mm
Weight (without stand)	6000 g