Operation Manual
49BDL5057P
58
10.2.  Troubleshooting
Symptom Possible Cause Remedy
No picture is displayed 1. Thepowercordisdisconnected.
2. Themainpowerswitchonthebackofthe
displayisnotswitchedon.
3. Theselectedinputhasnoconnection.
4. Thedisplayisinstandbymode.
1. Pluginthepowercord.
2. Makesurethepowerswitchisswitchedon.
3. Connectasignalconnectiontothedisplay.
Interference displayed on the display or audible 
noise is heard
Causedbysurroundingelectricalappliancesor
uorescentlights.
Movethedisplaytoanotherlocationtoseeisthe
interferenceisreduced.
Color is abnormal Thesignalcableisnotconnectedproperly. Makesurethatthesignalcableisattachedrmly
tothebackofthedisplay.
Picture is distorted with abnormal patterns 1. Thesignalcableisnotconnectedproperly.
2. Theinputsignalisbeyondthecapabilitiesof
thedisplay.
1. Makesurethatthesignalcableisattached
rmly.
2. Checkthevideosignalsourcetoseeifit
isbeyondtherangeofthedisplay.Please
verifyitsspecicationswiththisdisplay’s
specicationsection.
Display image doesn’t ll up the full size of the 
screen
1. Thezoommodeisnotsetcorrectly.
2. ScanModemaybesetincorrectlyto
underscan.
3. Iftheimageexceedsthescreensize,Scan
ModemayneedtobesettoUnderscan.
UsetheZoommodeorCustomzoomfunction
intheScreenmenutonetunedisplaygeometry
andtimefrequencyparameter.
Can hear sound, but no picture Improperlyconnectedsourcesignalcable. Makesurethatbothvideoinputsandsound
inputsarecorrectlyconnected.
Can see picture but no sound is heard 1. Improperlyconnectedsourcesignalcable.
2. Volumeisturnedallthewaydown.
3. {Mute}isturnedon.
4. Noexternalspeakerconnected.
1. Makesurethatbothvideoinputsandsound
inputsarecorrectlyconnected.
2. Press[ ]or[ ]buttontohearsound.
3. SwitchMUTEoffbyusingthe[ ]button.
4. Connectexternalspeakersandadjustthe
volumetoasuitablelevel.
Some picture elements do not light up  Somepixelsofthedisplaymaynotturnon. Thisdisplayismanufacturedusinganextremely
highlevelofprecisiontechnology:however,
sometimessomepixelsofthedisplaymaynot
display.Thisisnotamalfunction.
After-Images can still be seen on the display 
after the display is powered off. (Examples 
of still pictures include logos, video games, 
computer images, and images displayed in 4:3 
normal mode)
Astillpictureisdisplayedforanoverextended
periodoftime
Donotallowastillimagetobedisplayedfor
anextendedperiodoftimeasthiscancausea
permanentafter-imagetoremainonthedisplay.
How to setup the settings in the menu to 
control all the monitors at the same time and 
individually via RC?
DaisychainedbyRS232andnoIRcable 1.Therstdisplaysetsas“Primary”onOSD
(Advancedoption/IRcontrolitem),otherssetas
“Secondary”.
2.ThesetupOSDwillshowonTop-Leftofdisplay.
(ToggleMENUwillshowagainifitdisappear)
3.Defaultsetting:IDNO:0,GPNO:0,thissetting
cancontrolalldisplaysbyIR.
The“+”,“-”canchange“IDNO”tocontrol
signaldisplayby“MonitorID”.
The“UP”,“DOWN”canchange“GPNO”to
controlmulti-displayby“GroupID”.
*TherstdisplayalwaysbecontrolledbyIR.










