Film-Tech Cinema Systems
Film-Tech Forum ARCHIVE


  
my profile | my password | search | faq & rules | forum home
  next oldest topic   next newest topic
» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » ORC 1600 Lamphouse -- Takes LONG To Strike

   
Author Topic: ORC 1600 Lamphouse -- Takes LONG To Strike
Manny Knowles
"What are these things and WHY are they BLUE???"

Posts: 4247
From: Bloomington, IN, USA
Registered: Feb 2002


 - posted 06-21-2003 11:26 AM      Profile for Manny Knowles   Email Manny Knowles   Send New Private Message       Edit/Delete Post 
We have here an ORC lamphouse -- 1600W Vertical bulb, orange/beige paint job -- and the lamp must be switched on manually about an hour or so before showtime...

It takes THAT LONG to strike!

What's up with this lamphouse?

 |  IP: Logged

Michael Harlow
Expert Film Handler

Posts: 170
From: Faversham, Kent, UK
Registered: Jul 2002


 - posted 06-21-2003 12:10 PM      Profile for Michael Harlow   Email Michael Harlow   Send New Private Message       Edit/Delete Post 
What happens if you hit it with a hammer ? does that make a difference? [Big Grin] Does it have a lamp in in or does someone rush in and put it back while you're not looking? [Roll Eyes]
Just an idea [Wink]

 |  IP: Logged

Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000


 - posted 06-21-2003 12:26 PM      Profile for Paul G. Thompson   Email Paul G. Thompson   Send New Private Message       Edit/Delete Post 
Presuming your open-circuit voltage is OK:

Plugged blower? The sail switch may just be on the verge of doing something. Check the blower, sail switch, and the paddle. It might be fouled with dust and crud.

However, if manual strike seems to work OK, the problem is not with the sail switch or the blowers. I would suspect the zener diode took a dump.

 |  IP: Logged

Gordon McLeod
Film God

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


 - posted 06-21-2003 03:37 PM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
check the manual strike if that works it is probably the zenier or the pot in serries with it (some had a fixed resistor)
If it doesn't strike manual is it a 3 phase or single phase rectifier
Some of the 1600 single phase had a small relay to switch the boost supply in and out so it would be suspect
If it is the 3 phase one I would suspect the caps

 |  IP: Logged

Manny Knowles
"What are these things and WHY are they BLUE???"

Posts: 4247
From: Bloomington, IN, USA
Registered: Feb 2002


 - posted 06-21-2003 07:22 PM      Profile for Manny Knowles   Email Manny Knowles   Send New Private Message       Edit/Delete Post 
I'm pretty sure this is a single phase unit.

I will look at the relay situation by doing a swap and maybe then the problem will follow the relay taken out of this unit.

 |  IP: Logged

Don Sneed
Master Film Handler

Posts: 451
From: Texas City, TX, USA
Registered: Aug 2001


 - posted 06-21-2003 11:49 PM      Profile for Don Sneed   Author's Homepage   Email Don Sneed   Send New Private Message       Edit/Delete Post 
Manny also look at the 100-ohm/100watt resistor, adding another 100-ohm/100watt resistor in parallel will help, also look at the added full wave diode (2-small one) on the corner at the top of the heat-sink, 1-of these could be bad....

 |  IP: Logged



All times are Central (GMT -6:00)  
   Close Topic    Move Topic    Delete Topic    next oldest topic   next newest topic
 - Printer-friendly view of this topic
Hop To:



Powered by Infopop Corporation
UBB.classicTM 6.3.1.2

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.

© 1999-2020 Film-Tech Cinema Systems, LLC. All rights reserved.