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manowarzenith
Joined: 28 Dec 2010
Posts: 13
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| Posted: Wed Mar 30, 2011 2:47 pm Post subject: Zenith pro 851 x |
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Hi Curt.
Do you think you got video module for Zenith pro 851x?Advanced audio video in London ont .think that ithis s the problem but they are not sure.What do you think?
Thanx
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Mar 30, 2011 3:03 pm Post subject: |
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Can you hear the crackle of the high voltage when you first turn it on?
Can you see a dim glow inside the back of the tubes near the boards that connect to the back of them?
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manowarzenith
Joined: 28 Dec 2010
Posts: 13
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| Posted: Wed Mar 30, 2011 4:17 pm Post subject: |
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Tubes are fine.I got all 3 colors on the screen but no video,no menu screen and yes i can hear high voltage comes on and off.focus block is fine too.No cracks.All projector looks like new inside.
thanx
ed
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Wed Mar 30, 2011 4:54 pm Post subject: |
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If the HV goes on then off, then you have a bad focus block. if it's the old style single piece one with the 6 controls under the back cover, then it's bad.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Mar 30, 2011 4:59 pm Post subject: |
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| manowarzenith wrote: | I got all 3 colors on the screen but no video,no menu screen
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Do the 3 colors stay on or do they shut off. I'm still not understanding whats happening.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Wed Mar 30, 2011 5:07 pm Post subject: |
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I do have every part for the PRO 851. If there are no menus on the screen, it's not the video input board. I'd suspect the 9-700 board, as that's what drives all three tubes. They shoudl however confirm that you have continual HV and G2 voltage, as like Mac, I'm still a bit confused as to what the problem is.
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manowarzenith
Joined: 28 Dec 2010
Posts: 13
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| Posted: Thu Mar 31, 2011 6:43 am Post subject: |
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It is NOT old style focus block.Power stays on when turned on.On focus block I can adjust each colour so I can see all 3 tubes working fine but not full screen is covered by 3 colours.No menu,no picture if video cable is plugged in from receiver or vcr.Sometime ago I left power on for a day and picture came on.Worked fine for 10 hours.Never came back on after I shut it off.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Thu Mar 31, 2011 1:31 pm Post subject: |
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When you turn up the screen control on the focus block you say that the screen lights up but not the full screen. What area of the screen is not lit up?
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manowarzenith
Joined: 28 Dec 2010
Posts: 13
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| Posted: Thu Mar 31, 2011 7:33 pm Post subject: |
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When prjector was working fine.In right top corner I could see Input-sign and whole screen was flickring,with "snow flakes".Untill I trurn on dvd or receiver.Now when I turn controls up on fccus block only may be behalf of the screen is lit ,in the middle of ths screen with no sign on it .Just plain 3 colours.
Thanx for help.
I love this projector.
Do yuo guys know anybody in Ontario who knows how to fix it???
I took really good care of it.There is no dust in it.No visual damage.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Thu Mar 31, 2011 7:42 pm Post subject: |
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All I can guess is that the 9-700 board is bad. That's the main CPU control board that has all the onscreen menus on it, etc. I've got those at $25 plus shipping if you want to try that.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Thu Mar 31, 2011 7:46 pm Post subject: |
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Hahaha...which middle is lit? Horz or vert. Does the lit area run left to right or top to bottom.
I've been thinking vert failure all along but your not giving me enough info.
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manowarzenith
Joined: 28 Dec 2010
Posts: 13
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| Posted: Tue Apr 05, 2011 2:03 pm Post subject: |
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Hi Curt.How much do you want for video module as well??My projector was made in 1996 with newer type of focus block
Can I return those parts if problem is not solved?How much for everything with shipping to London Ont?
thanx
ed.
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manowarzenith
Joined: 28 Dec 2010
Posts: 13
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| Posted: Tue Apr 05, 2011 2:18 pm Post subject: |
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Screen stays steady.Does not run from top to bottom nor from left to right.When I pick it up from repair shop I will try to take a picture and post it here,thanx
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Tue Apr 05, 2011 2:26 pm Post subject: |
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The CPU board is the main video board as well. At $25, no, there are no returns, it would cost you almost that much to send it back anyways.
Mac is right though, it could also be the deflection board, those are $10.
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manowarzenith
Joined: 28 Dec 2010
Posts: 13
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| Posted: Tue Apr 05, 2011 3:14 pm Post subject: |
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Ok Curt.So how can I order this 9-700 board ?Is it used??
thanx
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Tue Apr 05, 2011 3:17 pm Post subject: |
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Yes, new they were about $600..
Shoot me an email to curtpalme@shaw.ca
Thanks!
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