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Rdean
Joined: 13 Oct 2006
Posts: 258
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| Posted: Mon Mar 02, 2009 3:38 pm Post subject: Marquee variable width pulsing |
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I tried doing a search but it seems the search is not pulling old topics. I thought sure I had read (or even started) posts about this before.
My main Marquee is back up after installing new HV leads (thanks Curt). The arcing had taken out two HDMs. My last one is now in there. I am 90% sure that I have replaced C50 on that HDM. It was being used in a spare Marquee without any problems (no variable width pulsing).
But in my main Marquee I get the width pulsing. What other things could contribute to that besides a leaking C50 on the HDM?
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Rdean
Joined: 13 Oct 2006
Posts: 258
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| Posted: Mon Mar 02, 2009 6:00 pm Post subject: |
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Thanks for the pointers. I'll try to get to this soon and report back.
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Mon Mar 02, 2009 7:06 pm Post subject: |
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Hello
Arcing from the anode leads could fry the H yoke couplers and the connector contacts, try inspecting those also.
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