Samsung HL-R4667W Service Manual page 47

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Troubleshooting
10. Other Screen Errors:
6-4
▶ 40 Vertical lines 16 pixels wide:
DDP1011 or BGA, DMD panel interference.
→ Replace the DMD board
.
▶ Horizontal Bar or No Raster:
Error in DDP1011 or the DMP panel.
→ Replace the DMD board
▶ Dotted Vertical Bar:
Error in Rambus Dram(IC 403) or the soldering
→ Replace the DMD board
▶ Beehive mosaic patterns all over the screen:
Error in the LVDS Receiver (IC 601) or the soldering
The H sync signals are not transferred to DDP1011.
→ Replace the DMD board.
Published in Heiloo, Holland.
9/13/15
Samsung Electronics