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VPH-1252 has intermittant blue shift

 
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Audio_Geek_00



Joined: 07 Aug 2014
Posts: 82
Location: SF Bay Area

Posted: Thu Aug 07, 2014 11:21 pm    Post subject: VPH-1252 has intermittant blue shift

When I start the projector the blue gun will be out of alignment and waver a bit. It seems that after things warm up then it snaps back into alignment. But lately about 45-60 minutes into watching it will intermittently go out of alignment and then correct itself. Does anyone know why that is happening? Could a video board be getting ready to go? I'm actually surprised that nothing has happened to this projector before now as it is over 20 years old with only a little over 1800 hours. Any info appreciated. Thanks.
Tim
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Tim in Phoenix



Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix

Posted: Thu Aug 07, 2014 11:47 pm    Post subject:

Hello

Is blue going out of alignment sideways or vertically? Is it the edges or the entire blue frame?
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Curt Palme
CRT Tech


Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC

TV/Projector: All of them!

Posted: Fri Aug 08, 2014 1:43 am    Post subject:

Bad vertical board. I've seen this many times before. I can repair yours or sell you a working one. Email me at curtpalme at shaw.ca please.
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Audio_Geek_00



Joined: 07 Aug 2014
Posts: 82
Location: SF Bay Area

Posted: Sat Aug 09, 2014 3:41 am    Post subject: VPH-1252 with blue shift

Thanx for the reply Tim and Curt. The shift is the entire frame horizontally to the right. Right now my Oppo is in screen saver mode and the the O in Oppo on the Blue image aligns with the first p in Oppo on the main image. If it is a specific board how hard is it to remove and replace. I am fairly handy with tools. OTOH, if its pricey to get a good board I am reluctant to put money into a projector i'm saving money to replace with something newer. It throws a descent picture with the Moome card but its not 1080p as the best this pj can do is 1080i and the image is not so bright. Thoughts?
Thanx,
Tim
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Audio_Geek_00



Joined: 07 Aug 2014
Posts: 82
Location: SF Bay Area

Posted: Sat Aug 09, 2014 3:53 am    Post subject: VPH-1252 with blue shift

BTW, I am heading out of town and won't be back till Friday. I'll try to check in but i'm not sure i'll be able to. Thax in advance.
Tim
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jahb68



Joined: 07 Apr 2010
Posts: 2
Location: Germany

Posted: Wed Aug 13, 2014 7:22 am    Post subject:

Hello,
I have the same problem with my Sony D50. Curt, do you have also vertical boards for D50?
Regards
Benjamin
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Audio_Geek_00



Joined: 07 Aug 2014
Posts: 82
Location: SF Bay Area

Posted: Thu Sep 11, 2014 3:13 am    Post subject: VPH-1252 blue horizontal shift

Curt Palme wrote:
Bad vertical board. I've seen this many times before. I can repair yours or sell you a working one. Email me at curtpalme at shaw.ca please.


Thanx Curt for getting the video board to me. Got it installed and it worked as advertised. Just some slight tweeking and it looks good. Now I don't have to wait and hope the blue syncs properly anymore.
Best,
Tim
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