Sony TC-K71 Cassette Deck Repairs

[@IvanFayno]

Wonderful cassette deck with great sound. I have TC-K81.

[@babysis1218]

Nice work getting the tapes to play correctly again!

[@m80116]

You completely avoided the jammed mechanism problem... the grease in these machines typically thickens up to a hard jam. Also seeing a mirror cassette being put to test in a eat-tapes machine has given me shivers. I believe I paid around 150 bucks my one and only mirror cassette... so, I use what I've always used: a trusty TDK D shell with spare tape and one of the sides opened.

[@VintageAudioTech]

I just replace the tape stock in the mirror cassette if it gets damaged

[@MasterTomster]

With this model you can BIASing ONLY Type I cassettes. All four types cassettes you can calibrate with TC-K81 and TC-K75 from same decks generation/series.

[@VintageAudioTech]

There certainly are some limitations

[@ElectoneGuy]

That deck was early 1980s.

[@VintageAudioTech]

You are correct. The manual says 1980. Most likely manufactured in 79

[@JamesE707]

Regarding curvature on that roller Paul, it looks harmless, but it isn't of course. I've never seen any definitive reference online for pinch rollers, but as far as I have learnt, the supply pinch roller (at least) has to be dead flat. (Edited) BTW, and of interest, I have an old TC-730ES where I replaced the heads in 2005. It's hardly had any hours of use since then, but not long ago I decided to get the old head lapped professionally, only to realise that the old head was part araldited on! I think Sony did this, not sure why? I wonder if the same is true of your TCK-71?

[@VintageAudioTech]

I’m not sure. Are you talking about a defect in the lamina from the factory which separates both channels?

[@JamesE707]

@@VintageAudioTech The epoxy-like material was either side of the Rec-PB head sandwich.

[@KaapoA]

Thanks for shering this video. Have you a good guss what's problem In my TC-K71 the pitch rollers are up position all the time.

[@VintageAudioTech]

Hardened grease preventing the arms from pivoting. I can restore that

[@arcsound]

Nice work, thanks for sharing. I've got a TC-K81 that probably needs new pinch rollers, too. Where did you source your replacement rollers? Thanks again!

[@VintageAudioTech]

Fixyouraudio sells quality rollers for these. The rollers are the same as the ones found in all the newer dual capstan TCM200 decks

[@westelaudio943]

Nice... But with type IV compatibility and that general design, I think this is 1980 or later...

[@VintageAudioTech]

Yes, you are right in the Service Manual it says 1980

[@bryanvoytilla9706]

Hello. Is there a way to contact you for a repair of my tape player?

[@VintageAudioTech]

Send a message to [e-mail] Thank You Paul

[@zambrano966]

Lo volviste a subir, el mismo video ???? Muy bueno, felicitaciones.

[@VintageAudioTech]

I had made an edit on the video

[@pretol7920]

mid 70's? This is CLEARLY an early-to-mid 80's design... the audio equipment has very specific look from many eras, and this is VERY MUCH NOT 70's... Same way 90's equipment had a particular design language that can't be confused with earlier decades (and the trend away from silver front plates toward all black)...

[@VintageAudioTech]

I believe you! You are well versed in cassette

[@TapesNstuffS]

It's actually based on their late 70s design 1979 I think. But this one is from 1980.

[@jimdayton8837]

Also not to mention this is a logic controlled deck, which did not exist in the 70's.

[@TapesNstuffS]

@@jimdayton8837 1979 had some computer controlled decks.

[@jimdayton8837]

@@TapesNstuffS Come to think of it Sony did have some logic controlled decks in the late 70's.

[@zambrano966]

Una pregunta, tienes tiempo con ese cassette espejo, donde podría comprar uno ?

[@VintageAudioTech]

I bought it in Japan some time ago. There used to be a guy on eBay selling them

[@cseresznyessandor237]

I vr got 2 decks but I d changed the pinch rollet , theres no wow and flutter, only probl is the hum of the BSL motor.When switch betwen record or tape in the tape position coluld heard a little noise

[@TapesNstuffS]

Normal

[@MysteryZen77]

thumbs down- you act like i will get to see the tape get sucked in- ?? NEVER saw it~!

[@VintageAudioTech]

Didn’t want to damage the tape. You Could see it was about to get eaten if I didn’t stop the deck