CurtPalme.com Home Theater Forum

capa · Joined: 22 Oct 2007 Posts: 29 Location: Hamburg, Germany

Hi all.

Had my Cine8 set up with your help and it produced a very nice image.

The signal feed was PS3 -> HDMI DVI cable -> HD Fury -> XVue 1040 -> VGA to BNC cable -> Cine8

A friend of mine wanted to see how it was to play games on that set - GT5 prologue.

The game ran on full 4 by 3 format and in bright scenes I heard a snarring noise on the rear side of the PJ.
Had the fear that this was due to overshooting the safe area of the tubes, lowered brightness and contrast
to see the image dimensions on the tube surfaces but there was still enough room to the edges.

Did not want to be a bad sport turning the set off...

That was something my projector did on his own after half an hour of playing.
Black screen, fans were still running and I still could turn it off with the remote.

I did not yet dare to turn it on again....

Thanks in advance for any hints or suggestions.

Regards
Carsten

Ile · Posted: Thu Aug 07, 2008 11:48 am Post subject:

I'd try to turn it on and see if it throw picture.

If not, check if there is red leds on. Check also eht board.

capa · Joined: 22 Oct 2007 Posts: 29 Location: Hamburg, Germany

Just gave it a try and to my surprise the white warm up screen came up like it always did...

This image was much larger than the screen ever since and I did not find a way to adjust it.
Is that warm up procedure needed/ helpful from your experience?

What would be your next steps to track down the error?
Do not want to risk to seriously damage my projector if I run it again with the same settings.

Regards
Carsten

**Curt Palme** · Posted: Thu Aug 07, 2008 12:41 pm Post subject:

If the pix is too large for the screen/tube face, and it's dim and out of focus, you have problems in the HV section. you need to swap out the HV quadrupler/splitter/EHT board. If you have no spares, send them to me and I"ll test them.

capa · Joined: 22 Oct 2007 Posts: 29 Location: Hamburg, Germany

Hi Curt.

The image is only too large during the warm up phase.

As soon as I feed the signal from the PS3 everything looks good so far but as soon as I have
scenes with a bright upper half there is that noise again which frightens me...

Bad components or bad setup? (Hard to tell I guess...)

Ile · Posted: Thu Aug 07, 2008 1:02 pm Post subject:

capa · Joined: 22 Oct 2007 Posts: 29 Location: Hamburg, Germany

Just made a small movie with my digital camera.
Audio would have been enough but I don't know how to extract that from an mpeg Wink

**Curt Palme** · Posted: Thu Aug 07, 2008 1:56 pm Post subject:

I don't think I'd worry about it. Can't quite tell if it's SMPS noise or HV noise, but there's no lines in the screen indicating arcing, so I'd run it until something fails permanently.

kschmit2 · Posted: Thu Aug 07, 2008 4:03 pm Post subject:

capa · Joined: 22 Oct 2007 Posts: 29 Location: Hamburg, Germany

Update: Watching content in full screen kills it within minutes. One bright flash and the tubes are off.
16:9 content will last longer...

The noise changes if I adjust the gamma level on the Box1040.

Ile · Posted: Fri Aug 08, 2008 12:01 pm Post subject:

capa · Joined: 22 Oct 2007 Posts: 29 Location: Hamburg, Germany

**Curt Palme** · Posted: Fri Aug 08, 2008 1:44 pm Post subject:

You have HV arcing or lack of HV regulation going on. At least that's what it's sounding like.

capa · Joined: 22 Oct 2007 Posts: 29 Location: Hamburg, Germany

**Curt Palme** · Posted: Fri Aug 08, 2008 7:19 pm Post subject:

No and no. Just a pretty common failure on any Barco. You need to send me the quad and EHT boards, I'll test them here, will repair/replace what is required and I'll send them back.

Here's how to send them in:

http://www.curtpalme.com/ContactUs_Shipping_Parts.shtm

capa · Joined: 22 Oct 2007 Posts: 29 Location: Hamburg, Germany

Thank you Curt.

You mentioned EHT boards, did I miss something? You need to have the quadrupler and the EHT (R7627165), right?

Just took the EHT board out and found that it only had a very light fit, it literally fell off as soon as I removed the screws...
Is this normal?

And I noticed that one edge of the thermal layer is bent under and touches one leg of the component (btw. what exactly is this, a thyristor?) mounted to the heatsink.
Even though those things are non-conductive (at least I hope so) would this be able to disturb signal flow?

Regards
Carsten

**Curt Palme** · Posted: Sat Aug 09, 2008 4:15 pm Post subject:

That's what I need, yes. If the board was screwed down, then the contacts are fine, same with the thermal layer. THis is some fault on the board or quadrupler. I'll figure it out.. Smile

WTS · Joined: 08 Mar 2006 Posts: 1221 Location: Calgary

Yeah I'd say it sounds like a regulation problem. Send them to Curt he'll fix them up for ya.

Tom.W · Joined: 09 Mar 2006 Posts: 6368

capa · Joined: 22 Oct 2007 Posts: 29 Location: Hamburg, Germany