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helfriwj
Joined: 29 Oct 2006
Posts: 51
Location: Pittsburgh,PA
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| Posted: Sun Nov 12, 2023 11:10 pm Post subject: Sony 1292 blue bow adjustment |
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Trying to adjust convergence on my Sony 1292. I am using a Vutec curved screen. When trying to converge I cannot get the blue bow to adjust the numbers on the screen change but the blue line does not move . Any thoughts would be appreciated.
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Mon Nov 13, 2023 10:48 pm Post subject: |
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It looks like the convergence / deflection circuit for blue has a problem, only bow does not working, everything else is?
A picture would tell 1000 words. How bad it looks?
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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helfriwj
Joined: 29 Oct 2006
Posts: 51
Location: Pittsburgh,PA
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| Posted: Tue Nov 14, 2023 1:07 am Post subject: |
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I am posting the pictures as can be seen I adjusted the blue bow to the min and max for both H and V the pictures show that the blue line does not change
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helfriwj
Joined: 29 Oct 2006
Posts: 51
Location: Pittsburgh,PA
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| Posted: Thu Nov 16, 2023 1:56 am Post subject: |
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I just reseated the DCC and DCA boards that are on the DC board I was able to adjust the blue BOW the red vertical now does not adjust Does anyone know which of these boards adjust the red blue and green?
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Wed Nov 22, 2023 1:21 pm Post subject: |
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The source of the correction signal is the DB board, the signal goes through the motherboard (DM).
As for the DCA boards on the DC board, CN210/213 belongs to Red, CN211/214 Green, CN212/215 Blue. DCA boards are interchangeable
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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helfriwj
Joined: 29 Oct 2006
Posts: 51
Location: Pittsburgh,PA
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| Posted: Wed Nov 22, 2023 1:34 pm Post subject: |
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Found the problem a plug on the DC board was not seated. Plugged it in and was able to complete convergence. I have another 1292 that is showing a 02 fault would you happen to know what on the DC or E boards would cause this fault I know that it is one of these two boards because I had this fault on the projector I am using now and when I replaced the boards the fault went away.
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