Toshiba CN32V71... intermittent loss of tuner function

[tommyo1954]

My Toshiba CN32V71 Cinema Series has an intermittent loss of tuner. Using the tv's tuner, and at random it will go to all snow. But when I run the signal from the Panny VCR and use the Panny tuner, it displays properly.
In other words, the Tosh tuner goes out... then I have to click the "TV, ANT 1; ANT 2; VIDEO; COLORSTREAM" selector from the tv's tuner, and use the tuner from the VCR.
I am trying to find out if there is a mechanical internal switch that is dusty or dirty; because it acts up at random almost like a dirty contact somewhere.
I am disabled and it will be hard for me to try and slide the tv out... but if anyone could confirm my thought and tell me if there is indeed a mechanical source selector, then I'd try to find it and spray the contact with contact cleaner.
I hope I explained my problem accurately.... and I hope someone can tell me about my thoughts because my medical situation wont allow a new tv right now.

You're probably wondering... why not use the tuner from the Panasonic VCR. Yes, that's a great option... But my elderly Mom has so much trouble with that remote; I am constantly trying to fix the tv for her.
And the remote that I always used for the Tosh was a easy to use RCA remote bought at Home Depot, of all places... but it works great.

So that's why I'm really hoping that I can somehow try and fix the Toshiba. Can anyone shed some light, maybe?

Thanks very much... Tommy

[tommyo1954]

Anyone, please? I have setup my small 19" Toshiba for my elderly Mom, but she cannot see the screen... it's too small for her.
Anyone have any clue regarding the 32" Toshiba?

[JayCee]

Hi, this is a mainly UK/Europe based forum and we don't have the same models/chassis released here as your side of the pond but there are no mechanical selection switches in modern TVs...some Toshiba models released here around 7-10 yrs ago have faulty tuners which cause no/intermittent loss of signal...replacement of the tuner is usually required or the services of a specialist repair company.

[tommyo1954]

Hi JayCee; thanks so much for your reply.
Yup, I kind of thought that too, darn it... The only reason I mentioned a possible dirty switch was because when the set worked fine, it was normal to hear an actual click when you toggles between ANT/!; Color Stream; ANT/2.

And when the tuner goes out, I can only watch the tv by feeding the audio & video from the VCR next to it. That would be fine with me, but my Mom (89 years old) ia having such a hard time with the VCR remote control. So I was hoping sooooo much that it might be something I could spray with contact cleaner and "cross my fingers" and have it fixed.

Shame too, that Toshiba is absolutely beautiful in displaying analog video; a great tv. Well... thank you again my friend... I guess I'll have to either troubleshoot a bit more, or try to locate a repair man somewhere. I'm a disabled guy and don't have too much $$$, if you know what I mean. That's why I wanted to try a repair myself.

Take care my friend... Tommy