R5906848 /04 DP2K SLP Series 311
Situation Solution
Wire of the lens motors is
disconnected from the Signal
Backplane.
Remove the large dust filter from the projector and check if the wire
(reference 3 Image 25-44) is inserted in the Signal Backplane.
Malfunction Cinema Control
board.
Replace the Cinema Control board. See service manual chapter
“Replacement of the Cinema Controller”, page 217.
Malfunction vertical shift motor
of the Lens Holder.
Use the local keypad to shift the image horizontally on the screen. If
unsuccessful, replace the horizontal shift motor of the Lens Holder. See
service manual chapter “Replacement of the Horizontal Shift stepper
motor”, page 188.
Malfunction Signal Backplane
(bad connection).
Replace the Signal Backplane. See service manual chapter “Card Cage”,
page 209.
Image 25-42
Image 25-43
Image 25-44
Code 5253: “DMD red fan - Speed low”
Situation Solution
Wire of the fan is
disconnected.
Check if the wiring of the fan is connected with the signal backplane. See
reference 3 Image 25-45.
Blocked fan. Unblock the fan. Ensure that the fan can turn freely. The DMD fan of the
Red channel is located underneath the Light Processor. See reference 13
Image 25-46. Light Processor has to be removed to access the fan.
Troubleshooting