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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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19th Oct 2020, 6:37 pm | #1 |
Diode
Join Date: Oct 2020
Location: Kingston upon Hull, East Yorkshire, UK.
Posts: 1
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Microvitec CUB 1431ms
Hello, I have recently purchased a Microvitec CUB 1431.
So far I have replaced :
I have attached a picture, any ideas ? Many thanks. Antony Myers. |
21st Oct 2020, 4:38 am | #2 |
Banned
Join Date: Mar 2020
Location: Nijmegen, Netherlands
Posts: 142
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Re: Microvitec CUB 1431ms
Also looks like you have retrace lines?
Maybe this would get more attention in the telly section being a CRT problem. |
21st Oct 2020, 10:18 am | #3 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,288
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Re: Microvitec CUB 1431ms
Thread moved.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
21st Oct 2020, 10:32 am | #4 |
Nonode
Join Date: Oct 2008
Location: Warsaw, Poland and Cambridge, UK
Posts: 2,677
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Re: Microvitec CUB 1431ms
That to me looks like the red gun is turned hard on all the time, hence the retrace lines. The fault is very likely to be on the tube base PCB. Looking at a circuit diagram here, I'd start checking TR901 and TR902, R907 and the other components in the red channel.
Chris
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21st Oct 2020, 11:20 pm | #5 |
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,270
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Re: Microvitec CUB 1431ms
have you reset the A1 volts?
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Kevin |