Samsung HL67A750A1FXZA Service Manual page 36

Troubleshooting
4-1-2 Faults and Corrective Actions
Symptom
40 Vertical lines 16 pixels wide
Horizontal Bar or No Raster
Dotted Vertical Bar
Beehive mosaic patterns all over
the screen
4-4
justmanuals.com
Related Image Causes and Countermeasures
DDP3021 or BGA, DMD panel
interference.
- Replace the DMD board
Error in DDP3021 or the DMD panel.
- Replace the DMD board
Error in Rambus Dram (IC301) or the
soldering.
- Replace the DMD board
Error in the LVDS Receiver
(IC101,IC102) or the soldering.
The H sync signals are not
transferred to DDP3021.
- Replace the DMD board.
Samsung Electronics