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» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » How can it be out of focus only on one side of the screen? (Page 3)

 
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Author Topic: How can it be out of focus only on one side of the screen?
Ken McFall
Jedi Master Film Handler

Posts: 615
From: Haringey, London.
Registered: Apr 2001


 - posted 01-13-2003 09:07 PM      Profile for Ken McFall   Email Ken McFall   Send New Private Message       Edit/Delete Post 
Tim...

the burnt connector had probably worked loose over time, or was never tight in the first place. All connections should always be 'Bright & Tight' or they will create a local resistance which will cause them to heat up, so the resistance increases so it heats up more and more until it burns out.

The gasket you talked about is vital to the correct operation of the strike circuit of the lamphouse to prevent the high voltage required to strike the lamp from jumping to ground.

No offence but you sound as if you are not the right guy to be attempting repairs to the equipment and you should get an engineer in as soon as possible. If you do, then watch him and ask lots of questions so you can watch out for problems in the future.

For now get it repaired with the right parts for everyone's safety.

Good luck.

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Ken McFall
Jedi Master Film Handler

Posts: 615
From: Haringey, London.
Registered: Apr 2001


 - posted 01-13-2003 09:09 PM      Profile for Ken McFall   Email Ken McFall   Send New Private Message       Edit/Delete Post 
Daryl..... don't you start....

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Daryl C. W. O'Shea
Film God

Posts: 3977
From: Midland Ontario Canada (where Panavision & IMAX lenses come from)
Registered: Jun 2002


 - posted 01-13-2003 09:27 PM      Profile for Daryl C. W. O'Shea   Author's Homepage   Email Daryl C. W. O'Shea   Send New Private Message       Edit/Delete Post 
Ken, I'm not starting... I always wanted to know what it'd be like to watch a movie on a small boat in the middle of the ocean during a really big storm. [Smile]

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Ken McFall
Jedi Master Film Handler

Posts: 615
From: Haringey, London.
Registered: Apr 2001


 - posted 01-13-2003 09:35 PM      Profile for Ken McFall   Email Ken McFall   Send New Private Message       Edit/Delete Post 
I'm gonna retire to my corner deeply wounded by that [Frown]

Watch out or I'll steal your paddle so you can't get back!

Maybe I've got the shakes and don't see it myself..... [Big Grin]

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 01-13-2003 09:50 PM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
That connector was like tht for some time. It would not be the cause of the focus problem. The connections are actually still sound and isolated from the case

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Ken McFall
Jedi Master Film Handler

Posts: 615
From: Haringey, London.
Registered: Apr 2001


 - posted 01-13-2003 09:56 PM      Profile for Ken McFall   Email Ken McFall   Send New Private Message       Edit/Delete Post 
Gordon,

from the sound of it all the equipment is in need of a good service. If the air vane is filthy and sticking then the chances are the supply and extract fans are the same and not doing their job correctly.....

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Tim Turner
Film Handler

Posts: 87
From: Chula Vista, CA, USA
Registered: Jan 2002


 - posted 01-13-2003 11:56 PM      Profile for Tim Turner   Email Tim Turner   Send New Private Message       Edit/Delete Post 
I'm most definetly not the right guy to be attempting repairs such as this. And I wouldn't try it either. I wish I could though.

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Ken McFall
Jedi Master Film Handler

Posts: 615
From: Haringey, London.
Registered: Apr 2001


 - posted 01-14-2003 12:51 PM      Profile for Ken McFall   Email Ken McFall   Send New Private Message       Edit/Delete Post 
Given time and an understanding helpful engineer you'll be surprosed how much you can learn.... so take it easy, watch, listen and learn.

Regards Ken.

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 01-14-2003 09:26 PM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
Actually I know the exhaust is now working as I spent a day on the roof with the mech contractor as they were causeing a NC issue dueing recert testing

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