Barco FLM series, Service Manual

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29. Convergence adjustment
Necessary tools
• 2x R847204 : steel screwdriver with 1/16” ended hex blade.
• R847205 : square drive socket with soldered hexagon key of 2.5 mm
• R847203 : Steel screwdriver with 0.05” ended hex blade
• Allen key 3 mm
• Allen key 2.5 mm
How to re-converge
1. Remove first the convergence cover plate (A) in the top plate by turning out the necessary screws.
A
Image 29-4
Convergence cover
2. Is your projector an FLM HD projector?
If yes, Loosen the 4 screws Cr and the 4 screws Cg on the heat pipes of HD light processors. Then continue with step 3.
Cg
Cr
Image 29-5
Heat pipes on HD light processor
If no, go to step 3
3. Put the square drive socket, with a soldered hexagon key onto a ratchet.
4. Carefully release the 4 lock-down screws, holding the DMD unit onto Prism frame.
Tip: Release the lock-down screws in a way the DMD assembly becomes just movable. Keep in mind that at the end of the
re-convergence, tightening the DMD unit can cause some small convergence drift.
5. Start the re-convergence in the center of the image as follows (using tool R847204):
- Adjust the control Gb1 until the crossing of the center Green convergence pattern coincide with the Top left/Bottom right
diagonal line of the center Blue convergence pattern.
- Adjust the control Gb2 & Gb3 simultaneously until the crossing of the center Green convergence pattern coincide with the Top
right/Bottom left diagonal line of the center Blue convergence pattern.
316 R59770072 FLM SERIES 19/03/2007