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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc.

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Old 11th Jun 2021, 1:05 pm   #1
ljdavek
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Exclamation Bush TV85 restore

Hi Iv got myself a bush tv85 to play with!! But can I get out the cabinet not a chance any advice on how to pull it out the front Iím guessing as taken out all the screws including the 4 screws right inside!!

Regards
DaveÖ
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Old 11th Jun 2021, 1:40 pm   #2
patrickgnl
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Default Re: Bush tv85 restore

This site has the answer https://www.radiocraft.co.uk/502.htm

Doesn’t look easy….
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Old 11th Jun 2021, 3:04 pm   #3
ljdavek
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Default Re: Bush tv85 restore

Yes I have that up on my computer right now but it doesnít tell you how the Bakelite surround comes off and I donít want to break it!!! The bottom is lose it comes away about half an inch but thatís allÖ. So am a bit stuck as I want to start testing parts Ö.

Regards

DaveÖ
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Old 11th Jun 2021, 3:34 pm   #4
patrickgnl
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Default Re: Bush tv85 restore

Have a read of this one… just in case it helps. https://www.radios-tv.co.uk/communit...5-restoration/

There is also service data available here https://www.service-data.com/section.php/9783/1/tv85

I hope it helps!
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Old 11th Jun 2021, 4:27 pm   #5
Heatercathodeshort
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Default Re: Bush tv85 restore

These are good basic receivers. The stuck mask as illustrated by Panrock was a problem when I was 16 and that was 1964!

Not many stock faults but if you have poor line sync, that is after doing all the usual checks [diodes etc] Check the primary of the discriminator transformer. It's primary has an 8.2k [?] resistor wired across it with the result that the frame sync appears to be OK!

This caught me out many years ago and you don't forget those head scratchers.

Plenty of nasty caps to change but the one I overhauled with my curator partner at the Dulwich museum has been very reliable after very many hours of use. Good luck with it! Regards, John
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Old 12th Jun 2021, 6:02 pm   #6
ljdavek
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Default Re: Bush TV85 restore

Hi still canít get it apart!! The bottom part of the Bakelite if free but fixed otherwise!!!

Hummmm?!?

Dave,
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Old 12th Jun 2021, 7:25 pm   #7
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Default Re: Bush TV85 restore

Not sure if you have the official data from the Bush manual but here we go. John.
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Old 15th Jun 2021, 10:47 am   #8
ljdavek
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Smile Re: Bush TV85 restore

hello everybody hope all is well...

so the tv now is in bits iv managed to remove the CRT with out damage!!

where to start? ,,...... well i think il try getting the big main cap reformed i only have a bench PSU so was going to start off low voltage at around 80ma thats about right right?

dave..
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Old 15th Jun 2021, 12:03 pm   #9
HamishBoxer
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Default Re: Bush TV85 restore

I would change any wax coupling caps, in line frame, sound plus boost cap and any cap across the mains.

Start off about 100---150 volts across main smoothing cap and check it is not getting warm.
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Old 23rd Jun 2021, 4:23 pm   #10
ljdavek
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Default Re: Bush TV85 restore

hi im still on it!!! But have started new job so bit busy...
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