Question Who can diagnose this (horizontal bars)?

[skroops]

After replacing the bulb (w case) and cleaning the interior I get this really weird issue with my w1070 benq projector: picture is divided in 14 equal sized horizontal bars - each second bar is fine, the rest have big color issues (see picture):

I've double checked all connections but don't find any errors or loose cables. Issue is with both HDMI ports and VGA. Did I break something? Can't find anyone with this particular problem after searching everywhere. Diagnosis much appreciated.

 

[unreel]

Is it the same on the projector menu screens ? or only when you use display a signal from an external source ?

Did you take the colour wheel out when you cleaned it ?

 

[skroops]

Thx for your feedback. It's the same on the projector menus, so internal error, not related to input signal as such. I didn't remove the color wheel, but took out and cleaned the DMD.