LG M2794D Service Manual

Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
- 16 -
TROUBLESHOOTING
1. Power- Up Boot Fail Trouble Shooting
Check P700 All
Voltage Level (5V, 15V)
Check Pow er con nector
OK ?
Replace Po wer board
Y
N
Check IC705 #2 Pin
Voltage Level 3.3V
Replace IC 705 &
Recheck
Y
N
Check X101 Clock
12MHz
Replace X 101
Y
N
Replace IC 106 Flash
Memory
Check Q702 Outp ut
Voltage Level (5V)
Replace Q702
N
Y
Wave form of X101
N
Wave form of X101

LG M2794D Specifications

General

Pixel pitch	0.313 x 0.313 mm
Aspect ratio	16:9
Display diagonal	27 \
Vertical scan range	56 - 75 Hz
Horizontal scan range	30 - 83 kHz
Contrast ratio (dynamic)	20000:1
Contrast ratio (typical)	1000:1
Viewing angle, horizontal	170 °
Display brightness (typical)	400 cd/m²
Audio system	SRS Surround XT, Dolby
Power requirements	90 – 264 Vac, 47 – 63 Hz
TV tuner integrated	Yes
Component video (YPbPr/YCbCr) in	3
Certification	TÜV-Typ, CE, EPA Energy Star, UL, CSA, SEMKO, FCC-B
Product color	Black
Market positioning	-
Compliance industry standards	DDC 2B
LED indicators	Stand-by
Power consumption (standby)	1 W
Power consumption (typical)	100 W
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth (with stand)	210 mm
Width (with stand)	654 mm
Height (with stand)	496 mm
Weight (with stand)	8920 g