Sony KV-1217 button replacements?

[zeno]

Those went DISCO from Sony in the 80's. Pull old one & try it. Usually
more than one is leaky. When you get it to stop you should be able to tune ch 3 in any slot.

Zeno

[aapljack]

The others will momentarily tune and then jump back to 12. I was able to hold down 3 and see the VCR video come though. Think I will probably reassemble it as it and hope for the best.

What is the procedure for using the digital tuning?

[dishdude]

Originally Posted by aapljack

The others will momentarily tune and then jump back to 12. I was able to hold down 3 and see the VCR video come though. Think I will probably reassemble it as it and hope for the best.

What is the procedure for using the digital tuning?

Aren't the directions under the little door?

[aapljack]

You are so right. That door become detached so I had set it aside and didn’t notice the instructions printed on the inside. Thanks for the heads up.

[zeno]

Service notes.
When you junk something save the TACT switches. There are hundreds of styles & often get noisy.With a good assortment you can usually mouse something.

A few other sets that use slide rule preset varactor tuners.
Toshiba has switching diodes on each slot. Change them all, they get
leaky.
Sanyo / Sears. More interesting ! It uses sensors, not switches. You
need to remove the panel & clean both the cabinet & sensors. First one
I saw had food & mung on it, a great clue !

Zeno