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Author
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Topic: B+H 2692 electrical fault?
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Chris Bird
Expert Film Handler
Posts: 218
From: Kingston upon Thames, UK
Registered: Jul 2013
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posted October 31, 2013 03:17 AM
Hi Everyone. Sorry I only ever seem to post problems on here! I got a Bell and Howell 2692 from Phil Sheard 3 months ago. Nice condition, not abused. As I posted here a month ago, the ceramic lamp holder burned out, and Maurice gave some very helpful advice on how to replace it. My friend Marryn Stevens very kindly did this for me, and I collected the machine from him at Ealing last weekend, and bought a new 24v 250w lamp.
Got it home, fitted the lamp in the new lampholder, and switched on. Got a lovely bright picture for 30 secs or so, them it faded to dark grey, then black, and I could smell burning, so switched off at once. The lamp had clouded up and started to melt!
Oh hell, now what can be wrong? It's definitely the correct lamp. Is it possible there is some deep seated electrical fault with this machine? Anyone had problems like this before? Sadly I am a novice where technical matters are concerned, and don't have any electrical testing equipment etc.
Any advice VERY much appreciated. Have I just got a dud machine that will give trouble forever? I used to use these machines a lot at a film society when I was a student, and never had trouble with them.
Is there anyone is my area who can service this machine?
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Chris Bird
Expert Film Handler
Posts: 218
From: Kingston upon Thames, UK
Registered: Jul 2013
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posted November 01, 2013 03:15 AM
Right, an update: the lamp I tried was definitely a 24v 250w A1/259. Terry: a good thought, but on the back of the machine is a switch you set to either 220v or 240v, so it can't be an American model (it's currently set at 240v).
On the back is also a switch for lamp brightness that on other models is usually just part of the main rotary switch. For the successful show, I had this on full brightness without realising it. For this recent test, when the lamp melted, I had it set to reduced brightness, which means less power should have been going to the lamp. Baffling.
Anyway, is the consensus that I should first order a new lamp? Nothing else obvious that I can be doing wrong?
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Chris Bird
Expert Film Handler
Posts: 218
From: Kingston upon Thames, UK
Registered: Jul 2013
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posted November 04, 2013 02:39 PM
Eureka!!! First of all, a big public thank you to Robert for sending me a new lamp. Anyway, I thought, that's really nice of him, but of course I know it'll just burn out in seconds like the last one. I was wrong! I installed it, and have just run the machine with the lamp on for 10 minutes, with no problem at all - it has stayed brilliant white, no melting, no smell of burning. THANK YOU ROBERT! And thanks to those of you who suggested trying a new lamp first. The other one must have been a dud. Either that or it's some dreadful intermittent electrical fault (don't even want to think about that...)
Anyway, as far as I can tell I'm up and running again, so great advice everyone! Just as well as the nights are getting darker, and I've got a couple of 16mm features I picked up at the recent fairs just waiting to be watched. ![[Smile]](smile.gif)
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