LG DM2780D User Manual

ENGLISH
80
TROUBLESHOOTING
The audio function does not work.
Problem Resolution
PictureOK&Nosound


Pressthe
(+ , -)
button
or VOL (

,
)
button.


Soundmuted?PressMUTEbutton.


Tryanotherchannel.Theproblemmaybewiththebroadcast.


Aretheaudiocablesinstalledproperly?
Nooutputfromoneofthespeakers


AdjustBalanceinmenuoption.
Unusualsoundfrominsidethe
product


Achangeinambienthumidityortemperaturemayresultinanunusual
noisewhentheproductisturnedonoroffanddoesnotindicatea
problemwiththeproduct.
NosoundwhenconnectingHDMI
orUSB


CheckHDMIcableisHighSpeedHDMICable.


CheckUSBcableoverversion2.0.


IfthesoundisabnormalintheHDMI,checktheaudioformatinyour
externalequipments.

»
AudioSupportedformat:DolbyDigital,PCM
There is a problem with PICTURE settings.
Problem Resolution
Whentheuserchangesthepicture
settings,the
TV
automatically
convertsbacktotheinitialsettings
afteracertainperiodoftime.


ItmeansthattheTViscurrentlysettoStore Demomode.Toswitch
toHomeusemodeyoushoulddothefollowings:FromtheTVMenu,
chooseOPTION→ChooseMode Setting→ChooseHomeuse.
Now,youhavecompletedswitchingtotheHomeusemode.
PC mode
No image is displayed.
Problem Resolution
Powerison,powerindictorisblue
butthescreenappearsextremely
dark.


Adjustbrightnessandcontrastagain.
Doesthe‘Invalidformat’message
appear?


ThesignalfromthePC(Videocard)isoutoftheverticalorhorizontal
frequencyrangeoftheproduct.Adjustthefrequencyrangeby
referringtotheSpecificationsinthisuser’sguide.
Doesthe‘Checksignalcable’
messageappear?


ThesignalcablebetweenPCandproductisnotconnected.Check
thesignalcable.


Pressthe‘INPUT’buttonintheremotecontroltochecktheinput
signal.
Problem Resolution
NopicturewhenconnectingHDMI


CheckthatyourHDMIcableisHighSpeedHDMICable.
IftheHDMIcablesarenotHighSpeedHDMICable,flickeringorno
screendisplaycanresult.PleaseusetheHighSpeedHDMICable.

LG DM2780D Specifications

General

3D	Yes
Pixel pitch	0.3114 x 0.3114 mm
Aspect ratio	16:9
Display diagonal	27 \
Viewable size diagonal	691.2 mm
Viewing angle, vertical	160 °
Contrast ratio (dynamic)	-
Display number of colors	16.78 million colors
Viewing angle, horizontal	170 °
Display brightness (typical)	250 cd/m²
USB hub version	2.0
DVI-D ports quantity	0
Product color	Black
Compliance industry standards	TUV-GS, FCC-B, CE
RMS rated power	10 W
Tilt angle range	-5 - 18 °
Panel mounting interface	200 x 100 mm
AC input voltage	100 - 240 V
Power consumption (off)	0.5 W
Power consumption (standby)	1 W
Power consumption (typical)	47 W

Weight and Dimensions

Depth (with stand)	222.8 mm
Height (with stand)	480.6 mm
Weight (with stand)	6000 g
Depth (without stand)	57.6 mm
Width (without stand)	644 mm
Height (without stand)	407.8 mm
Weight (without stand)	5000 g