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| Thread ID: 60729 | 2005-08-11 04:29:00 | Light Table | qyiet (6730) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 380298 | 2005-08-11 04:29:00 | At work we have a light table for viewing plans on. It has several fluroesent tubes in it. It has devoloped a nasty habit recently, that whenever someone turns the table off any PCs on the same circert breaker reboot. Anyone have any ideas about what I can do to fix it. I've alredy tried moving it to a plug on a different circert. But all that does is annoy a different group of people. Am I stuck with the problem, or is there a solution? -Qyiet |
qyiet (6730) | ||
| 380299 | 2005-08-11 05:45:00 | An axe? ;) I wonder if the power-factor correction capacitors on the fluorescents have died . That might give some voltage variations as the power factor changes on the circuit . But it must be a pretty big change to cause the computers to drop out and restart . |
Graham L (2) | ||
| 380300 | 2005-08-11 06:01:00 | I wonder if the power-factor correction capacitors on the fluorescents have died. That might give some voltage variations as the power factor changes on the circuit.If that is the case will replacing the tubes in the table fix the problem? But it must be a pretty big change to cause the computers to drop out and restart.Yeah.. our record is 3 at once.. I get the feeling it has slowly been getting worse. I may have (some months ago) replaced the power supply in a PC a little unjustly because I thought it was playing up. When the real culperate was the light table. -Qyiet |
qyiet (6730) | ||
| 380301 | 2005-08-11 06:09:00 | No, the power factor of tubes is the problem that the power factor capacitors correct . Or not . Removing the tubes would probably fix the problem, but people might notice . You could try replacing the starters on principle (they are probably too old anyway) but I doubt if they are the problem . |
Graham L (2) | ||
| 380302 | 2005-08-13 04:39:00 | Where's all the sparkies? I know there are a few here. I'm just guessing. This problem occurs when the box is turned off. | Graham L (2) | ||
| 380303 | 2005-08-13 04:46:00 | They are waiting to get called in on a professional basis as it is a workplace :-) | PaulD (232) | ||
| 380304 | 2005-08-16 05:08:00 | Thanks guys.. the current solution is a sign saying "Do not turn off" :) We are moving offices soon (months.. but *sigh* delays), so I'll make sure it gets plugged into a circert that has nothing vital on it then. -Qyiet |
qyiet (6730) | ||
| 380305 | 2005-08-16 07:06:00 | You could put a power filter on it. This could absorb the voltage spikes that it is producing. If that does not work you are best to get it looked at by a pro. It may need the capacitors or chokes replacing, as they maybe getting a bit sad, and posssibliy a noise supression capacitor fitted. Leaving it on all the time is wasting power and may cause the component that is causing the problem to die anyway. Hope this helps. Jeff (Service Tech.) |
Jeff (1070) | ||
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