|
|
This topic comprises 2 pages: 1 2
|
|
Author
|
Topic: christie lamp won't ignite
|
Warren Dewey
Film Handler
Posts: 28
From: monterey ca usa
Registered: Jan 2006
|
posted 01-19-2008 01:52 AM
I've searched the forum but not found this exact problem. I think I've lost my igniter, but not sure.
3 year old Christie SLC 40, New lamp. Changeover house, so I have a twin working lamphouse nearby to compare to.
At the start of the show tonight, lamp went out after 10 seconds or so, and won't restrike. Internal meter shows 40 volts with DC power switch on. (Usually runs at 25 V with lamp working.) Ready light is on.
Manual switch causes no jump in voltage on the meter. If I try to restrike with the manual switch more than once, the 3-phase breaker on the lamphouse pops. (The working lamphouse jumps to 40 volts or so when striking.)
I hear the relay when the dc power is switched on, but no hiss sound, which I usually hear when striking automatically. Manual switch makes the hiss sound, but still no light. So-- it looks like the igniter is bad--
However if I try to strike the lamp manually with DC power OFF, I get a momentary flash in the lamp. I can repeat this, but only after waiting a minute or so. It seems like the igniter is doing SOMETHING. Does this mean the igniter could be ok, or is it most sincerely dead?
| IP: Logged
|
|
Monte L Fullmer
Film God
Posts: 8367
From: Nampa, Idaho, USA
Registered: Nov 2004
|
posted 01-19-2008 02:13 AM
quote: Warren Dewey
At the start of the show tonight, lamp went out after 10 seconds or so, and won't restrike. Internal meter shows 40 volts with DC power switch on. (Usually runs at 25 V with lamp working.) Ready light is on.
When the rectifier is on before ignition, the voltmeter should be pegged over 130vdc. If you get this, your rectifier is okey.
quote: Warren Dewey
If I try to restrike with the manual switch more than once, the 3-phase breaker on the lamphouse pops. (The working lamphouse jumps to 40 volts or so when striking.)
..for you've taxed your rectifer with it popping that 3ph breaker. I would bet that you lost a diode with it shorting out in that diode bank down underneath.
quote:
I hear the relay when the dc power is switched on, but no hiss sound, which I usually hear when striking automatically. Manual switch makes the hiss sound, but still no light. So-- it looks like the igniter is bad--
SLC-40 consoles uses the IGA15M igniter, and the igniter is okey since you got the "hiss" meaning that the spark is jumping across the electrodes in the bulb, but no required 120vdc from the rectifier to keep the bulb lit on the initial startup.
quote: Warren Dewey
However if I try to strike the lamp manually with DC power OFF, I get a momentary flash in the lamp. I can repeat this, but only after waiting a minute or so. It seems like the igniter is doing SOMETHING. Does this mean the igniter could be ok, or is it most sincerely dead?
as mentioned above, I would say that the igniter is okey. But, if you really want to find out, either swap igniters from that other console, or if have one on spare, do the swapout - just make sure that those two wires are crossed on the terminal strip on top of the igniter, for if you don't you'll blow the igniter very quick.
Okey, here's the dumbest question of all: did you try another bulb? Sometimes new bulbs will crap out on you without giving you any notice that they are getting ready to die...and trust me, it isn't fun looking like an idiot when you bust a console apart looking for the complicated problem and finding a solution when right at the tip of your nose is the simple and obvious conclusion of how your problem began in the first place.which turns into a very easy fix.
Good luck - Monte
| IP: Logged
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
All times are Central (GMT -6:00)
|
This topic comprises 2 pages: 1 2
|
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.
|
Home
Printer-friendly view of this topic