
Troubleshooting
Samsung Electronics 4-5
1. Noise:
Internal noise may be caused by a foreign substance on the fan or driving device.
ForaDLPTV,theLEDfansandDMDboardfanarevulnerabletonoise.Sometimestheconnectorwirearoundthe
lamporDMDfanmakescontactwiththefan.
When irregular noise occurs for no particular reason, check the inside of the TV for any foreign substances.
The DLP projection TV may cause noise because the physical space is empty inside, causing a resonance at a particular
frequency.Thusalowvibrationisnotamalfunction.
Any ‘creaking’ noise is mostly from the structure of the device itself. A short, harsh noise may occur from a distortion or
malformationduetothermalexpansionbetweenthemetaljoints,screwsandloadedparts,respectively.Anyintermittent
‘creaking’noisecanberemovedbylooseningthescrews.
2. Black Screen (Voice Output):Replace the DMD board
3. AblackscreenwiththeLEDon:ReplacetheDMDBoard.
4. Line Pattern: Regular line patterns occur vertically or horizontally: Replace the DMD board.
5. VoiceDistortion:Replacethemainboard.
6. OutsideLight:Thisisnotaproductmalfunction,butapossibleinstallationorhumanerror.Thisoccurswhentheprojectedlight
from the surrounding illumination reflects onto the screen. This disappears as the TV starts operating and the TV lamp gets
brighter.However,youcanavoidoutsidelightbychangingthepositionoftheTVortheinstallationangle.
Decreasingtheilluminationorchangingtheindoorlightingmaywork.
7. ScreenFlip-over:
Enter Factory mode in DDP3021 and perform H-Flip (flip horizontally) and V-Flip (flip vertically).
Thescreenwillflipoverhorizontallyorvertically.
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