LG DM2780D - Picture Settings and PC Mode Issues

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.