LG M2250D Service Manual

ⓒ LG Electronics. Inc.2011
A. Picture Problem
Picture broken/ Freezing
Y
N
N
Check RF Signal level
Normal
Signal?
Check RF Cable
Connection
1. Reconnection
Check
S/W Version
S/W Upgrade
Check whether other equipments have problem or not.
(By connecting RF Cable at other equipment)
→ DVD Player ,Set-Top-Box, Different maker TV etc`
SVC
Bulletin?
Replace
Main B/D
Check
Tuner soldering
Normal
Picture?
Y
N
Y
Close
Close
. By using Digital signal level meter
. By using Diagnostics menu on OSD
( Menu→Setup→Manual Tuning)
- Signal strength (Normal : over 30%)
- Signal Quality (Normal: over 30%)
Normal
Picture?
Y
Contact with signal distributor
or broadcaster (Cable or Air)
N
Normal
Picture?
Y
Close
N
Standard Repair Process
Established
date
Revised date
3/13
LCD TV
Error
symptom
3
N
Normal
Picture?
Y

LG M2250D Specifications

General

3D	No
Aspect ratio	16:9
Display diagonal	21.5 \
Viewing angle, vertical	160 °
Contrast ratio (dynamic)	5000000:1
Display number of colors	16.78 million colors
Viewing angle, horizontal	170 °
Display brightness (typical)	250 cd/m²
Supported graphics resolutions	1920 x 1080 (HD 1080)
Audio input	Yes
USB hub version	2.0
DVI-I ports quantity	0
Annual energy consumption	89 kWh
Power consumption (standby)	0.5 W
Power consumption (typical)	61 W
Product color	Black
Market positioning	-
Panel mounting interface	100 x 100 mm

Weight and Dimensions

Depth (without stand)	59.5 mm
Width (without stand)	509.1 mm
Height (without stand)	403 mm
Weight (without stand)	2900 g