
Troubleshooting
4-4 Samsung Electronics
4-1-2 FaultsandCorrectiveActions
Symptom Related Image Causes and Countermeasures
40Verticallines16pixelswide
DDP3021 or BGA, DMD panel
interference.
- Replace the DMD board
HorizontalBarorNoRaster
Error in DDP3021 or the DMD panel.
- Replace the DMD board
Dotted Vertical Bar Error in Rambus Dram (IC301) or the
soldering.
- Replace the DMD board
Beehive mosaic patterns all over
the screen
Error in the LVDS Receiver
(IC101,IC102) or the soldering.
The H sync signals are not
transferred to DDP3021.
- Replace the DMD board.
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