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CTV On off switch for ITTCVC20

 
Colour Television
Last Post by Cathovisor 2 months ago
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Michael Dranfield
 Michael Dranfield
(@michael-dranfield)
Posts: 364
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Topic starter
 

As anyone experience with the on off switch used in the ITT Cvc20, I have just repaired one of these but the switch was stuck in the on position, after much time searching through loads of draws I found 3 brand new Cvc20 switches but two are stuck and the one that does function sometimes won't latch, sometime it gets stuck on, I tried some servisol and it's still un reliable, I know back in the 80s these switches were bad for internal arcing but these are brand new, due to the unusual layout and button arrangement it's not possible to fit any other switch.

IMG 20241203 170502 1
IMG 20241203 170519
IMG 20241203 170446

 

 
Posted : 03/12/2024 9:57 pm
slidertogrid
 slidertogrid
(@slidertogrid)
Posts: 1396
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I would try dismantling one of the switches and see why it is stuck. Are the contacts stuck together or is the the slide / latch part that is seized. It may be possible to free it off? 

Good luck! 😎 

 
Posted : 03/12/2024 10:06 pm
malcscott
 malcscott
(@malcscott)
Posts: 1622
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I have loads of NOS on/off switches. I will check if i have one (that still works) tomorrow.

 
Posted : 03/12/2024 10:12 pm
irob2345
 irob2345
(@irob2345)
Posts: 733
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That's a common (in Oz) ITT Schadow TV-rated power switch.

They were 2nd-sourced by ALPS in Japan. (the Alps switches were better!)

 
Posted : 04/12/2024 9:52 am
Cathovisor
 Cathovisor
(@cathovisor)
Posts: 6729
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@irob2345 Still available in the UK from RS.

 
Posted : 04/12/2024 11:36 am
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