CurtPalme.com Home Theater Forum

xray53

My PJ is unusable: there are erratic horizontal movements between the red and green/blue picture. The problem started when trying to use a computer as a source for HDTV. It went away after reseating some boards and everything was fine using a DVD player and a line multiplyer (NEC IP 4000Q) as a source. Christmas I tried my luck again with the computer and the problem reappeared (and I cannot make it disappear again, also the DVD player signal shows the same defect).

I attach two sreenshots and hope someone knows what is wrong here.

Thanks

Martin

kschmit2 · Posted: Mon Jan 12, 2009 10:18 am Post subject:

what resoltution and refresh rate did you try from your PC?

xray53 · Posted: Tue Jan 13, 2009 8:15 am Post subject:

Sorry for the delay - we tried 1920x1080 50 Hz, then lower resolutions like 1600x1200 60 Hz etc. - all with the same results.

Thanks

Martin

**AnalogRocks** · Posted: Tue Jan 13, 2009 9:31 am Post subject:

How's your mechanical setup?

Mark_A_W · Posted: Tue Jan 13, 2009 9:04 pm Post subject:

It jumps back and forth?

I would try reseating again.

If that doesn't help, I'd swap the Horizontal Deflection board, then the Oscillator board. (Curt?).

xray53 · Posted: Tue Jan 13, 2009 9:42 pm Post subject:

Mechanical setup: The PJ is ceiling mounted, distance to the screen is about 100 inches. I did the the setup procedure according to the description in Curts home page (first centering and focusing, raster size etc.)

Yes, it jumps around unpredictably but only in the horizontal direction.

I´ll try reseating again but have little hope it will help.

Thanks for your thoughts

Martin

xray53 · Posted: Tue Jan 13, 2009 10:10 pm Post subject:

Surprise! I opened the beast, tried all the boards in the back without success and the toyed a bit with the connectors at the H DEF PWB - and at least for the moment the picture is stable.

I will watch for a while and see if it stayes that way.

Thanks for your help!!

Martin Very Happy