Servicing a 1982 Sony CVM-1250 Television monitor - Intermittent weak color

Intermittent weak color regardless of input or source.
These sets are notorious for dying Matsushita capacitors, but dont jump to the conclusion of that just yet

[@atschirner]

Back in the '80 we had these monitors in our cable TV headend for quality monitoring. Many Friday nights were spent watching HBO in a lawn chair before we had cable at the house. Thanks for the memories.

[@jasonthejawman5442]

If your not testing your guessing!

[@tubeDude48]

Nichicon and Panasonic make goods CAPs. Since you don't show your About page with your email, I can't send you a link for Manual's!
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I would stick to DeoxIT Fader F5 for POTs.

[@hestheMaster]

Peed out caps mounted on a vertical circuit board is actually a good thing here as the traces are untouched by the aging
capacitor gut spew. Like the tap on the board test to narrow it down . But here you found a cracked pot on the board.
Weird stuff. Great working unusual commercial Sony monitor.

[@ashton56890]

I know this is such a late comment but did you ever find a focusing pot/dial, I recently got one with low hours but have no manual to find a dial to focus the damn thing

[@jasonthejawman5442]

A time Tv's were built solid

[@markallen1782]

Find the power supply section, and just recap it all.
Having stable, ripple free supply rails fixes all sorts of wierd faults.

[@wendellporter4875]

used to be an older guy local here that rebuilt crts about 20 years ago, he used to rebuild tubes for my grandfathers tv repair shop, i would have loved to get ahold of that rebuilding gear and learn to do it myself

[@Poppinwheeeeellllllieeeeez]

Im not really into TVs, but Im glad for the new vid.

[@Synthematix]

What an unusual looking set, i think though sony did make the best crt sets although they can be a real swine to fix due to the expensive transistors blowing, the mrs grew up with the 22" version of this it lasted well over 25 years, damn if you could add an RGB input to this it would be incredible.

[@JordanPier]

It would be. Its a hot chassis with an isolated video and audio input. Not sure how i would modify it, but yes, a cool idea

[@Synthematix]

@@JordanPier Does it have a jungle IC ? for the on screen stuff (if it has it) if so there will be pins on that IC for RGB then add a blanking signal from the composite input.

[@JordanPier]

@@Synthematix this one is all discrete.

[@Synthematix]

@@JordanPier Ok, then you need to go directly in the back of the crt neck boards RGB lines (video in)

[@stirlingschmidt6325]

Nice work!

[@radio-ged4626]

Great picture (at least that's the way it looks on UA-cam). Unusually old fashioned looking to me for 1982 - apart from it being a Trinitron tube, which although had been around for a while by then (well since about 1968) always looked futuristic to me back in the day.

[@zx8401ztv]

Well the picture is smashing, well done Jordan :-D
The c.r.t is in great condition.
The Craps were end of life, it was worth doing the re cap.

[@deanagoes2791]

I think the color crystal is damaged or the surrounding circuit components.

[@nomusicrc]

My Sony TV is 22 years old and it still works perfectly

[@lox_5017]

Another great video Jordan!

[@jdpinbaytown]

Great Video Jordan!, Hopefully will see mine on here!