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lost the left to right keystone and bow adjustment

 
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jaredjaric




Joined: 05 Jun 2007
Posts: 228
Location: Philippines


PostLink    Posted: Sun Nov 22, 2020 1:49 pm    Post subject: lost the left to right keystone and bow adjustment Reply with quote


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HI Guys,

Please send advise.

what board controls the left to right keystone and bow adjustments.

the video suddenly got skewed while switching inputs and i just could not adjust the left to right keystone and bow.
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kal
Forum Administrator



Joined: 06 Mar 2006
Posts: 17850
Location: Ottawa, Canada

TV/Projector: JVC DLA-NZ7


PostLink    Posted: Sun Nov 22, 2020 2:21 pm    Post subject: Reply with quote

You may want to indicate what projector you're talking about or it'll be hard for someone to assist. Wink

Kal

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HaydnG90




Joined: 22 May 2006
Posts: 1335



PostLink    Posted: Sun Nov 22, 2020 4:23 pm    Post subject: Reply with quote

kal wrote:
You may want to indicate what projector you're talking about or it'll be hard for someone to assist. Wink

Kal


I assume its his troublesome Barco Cine9
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jaredjaric




Joined: 05 Jun 2007
Posts: 228
Location: Philippines


PostLink    Posted: Sun Nov 22, 2020 8:44 pm    Post subject: barco 909 Reply with quote

Its a 909, i plan to swap out the vertical board .
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Curt Palme
CRT Tech



Joined: 08 Mar 2006
Posts: 24296
Location: Langley, BC

TV/Projector: All of them!


PostLink    Posted: Sun Nov 22, 2020 11:42 pm    Post subject: Reply with quote

I guess it could be the V board, but far more likely the controller board or the convergence output board.
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jaredjaric




Joined: 05 Jun 2007
Posts: 228
Location: Philippines


PostLink    Posted: Tue Jan 12, 2021 2:17 pm    Post subject: Reply with quote

Curt Palme wrote:
I guess it could be the V board, but far more likely the controller board or the convergence output board.





Just want to report back on this, after watching movies and netflix with no side corrections for a month.
I swapped in my spare controller board.

I can now do the side adjustments.
Thanks Curt ,you were spot on, it was the controller board.
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jaredjaric




Joined: 05 Jun 2007
Posts: 228
Location: Philippines


PostLink    Posted: Tue Jan 12, 2021 3:50 pm    Post subject: Reply with quote

i made a mistake,

The keystone and bow or side correction adjustments is still not working,

Changing the controller board only allows me to make the fine left side correction only.

Which means only the left side of the screen is not askew.

I have now changed the convergence board and v board , it is still not responding to adjustments.
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jaredjaric




Joined: 05 Jun 2007
Posts: 228
Location: Philippines


PostLink    Posted: Wed Jan 13, 2021 2:18 pm    Post subject: Reply with quote

ok, this time my 909 issue is really. Its the SMPS that was the problem.

After swapping three controller boards, two convergence board, two v boards,one H board to no avail.
I swapped the Smps out.

I can adjust the east to west bow and keystone.

Hope i can get tips on what to look for in the smps board ?
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