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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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11th Nov 2019, 5:28 pm | #21 |
Dekatron
Join Date: Feb 2005
Location: St.Ippolyts, Hitchin, Hertfordshire QRA IO91UW
Posts: 3,518
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Re: Repair of industrial open frame monitor
Hi Glyn
Yes, the output transistor does get quite warm, as does the LOPT. I had another look late last night and there are a couple of electrolytic caps that also appear to get quite warm - This cannot be right. Will have another nose around with the scope later on, and see if I can find anything amiss - not sure why the caps should be getting warm - the test ok for shorts. and hold a charge.
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11th Nov 2019, 5:32 pm | #22 |
Dekatron
Join Date: Apr 2012
Location: Worksop, Nottinghamshire, UK.
Posts: 5,554
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Re: Repair of industrial open frame monitor
If those caps are getting warm perhaps they are calling out "change me".
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11th Nov 2019, 5:52 pm | #23 |
Dekatron
Join Date: Feb 2005
Location: St.Ippolyts, Hitchin, Hertfordshire QRA IO91UW
Posts: 3,518
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Re: Repair of industrial open frame monitor
Agreed, and I have (although with what I had, as opposed to exactly the right thing)
I rather wonder if said caps are receiving an unhealty quantity of AC - I will look again later
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