Sony TC-K611S Three Head Cassette Deck - More Belts and Servicing!

Good job 👏 here's a secret you can use a duster can to freeze the belt or put parts in freezer and the belts will chip off in hunks non chlorinated brake cleaner works great and carburetor cleaner in a can also works great 👍

Great service work done very neatly and safely I really enjoyed this amazing video. Thanks a ton. 👋👌✌👏🙌🙏

Nice! Subbed and thumbs up, plus you play Credence. Cheers!

both is fine voice over or just direct

What's the name of this app on your phone?

Nice job! I say do voice overs because you can add more insight to the process.

Great repair the voice over works well .I bought a faulty sony tck 561s from ebay for £10 a few years ago the previous owner had messed around with it so have spent a while sorting his mistakes out for some reason he removed the head screws so had to find my own .I am still trying to sort the head height out

How do you change the pinch roller ?

Bla bla bla 😢

Hi. This is an exemplar of what an instructional video should be like. Thank you.
I've tried to fix my deck. I replaced the belts. But - you know the part of the video where you warn against movng the gears (world of pain) - mine just dropped apart. I tried to reassemble and it all fitted togther neatly. But the controls are haywire - it operates on play, rewind and FF ok but for a very short period and then stops.
Have you any guidance on setting the mech up?

Hey Paul I've had this unit on my bench for a long time so long I can't remember what was wrong.But seeing your instruction I'm confident I can get back to it and put the deck back together. Thanks for your help.

Great video. I just followed it and replace both belts but my deck still has the same problem it had before I started which is the tape doesn’t play! Fast forward and rewind all work but the tape won’t play. The heads move onto position but the tape doesn’t turn! If I remove the tension from the pinch roller then the tape plays but as soon as I release the pinch roller it stops and after a second the head drop back in the rest position.
Any ideas what wrong? Thanks.

i lost my plastic washer is that important？？？

Really enjoyable video. 💙👍

Hi Paul, could you help me with my sony cassette deck Tc-kb820s . I noticed that when I press stop as it's playing there's a momentary cog noise and the tape reel continues to turn for a second or two making the tape slack inside the cassette shell ? Thanks for any help . Danny.

Help! lol.
Thanks for your instructional video.
I've recently changed the belts & roller on the same model deck .
It all works - but the tape speed is way too fast when I select PLAY (it's like listening to the tape while it's fast forwarding).
I bought the deck with the belts in a decomposed state, I'm 100% positive that the little 'dimple' on the wheel in the mechanism is located correctly in the appropriate receptacle of the neighbouring mechanism component.

Any suggestions?

Great Job Thank you more please

I like your comments like it is now. Great work. Thanks

Thanks so much for this. I have owned this deck from new and decided I wanted to play some old cassettes recently only to discover it was no longer working. Hadn't been used for 5-10 years and both belts had gone to mush. Watched this video and was confident I could follow the instructions so ordered replacement belts. Had to watch someone else's video to work out how to open the door manually to remove the faceplate but then followed your instructions and replaced both belts easily. Was then disappointed to see that cassettes would stop after less about 1 second of playback. Fast forward, rewind and even track seeking worked fine. Checked mirrors, all shiny and clean. Worked out how to run the transport without a cassette in (again from someone else's video) and from that I could see pinch roller was sticking. Took it out and discovered a bump on it. Quick rub with an emery board to remove the bump and now the tape deck works fine. I will be ordering a replacement pinch roller. Thanks again for giving me the confidence to try and fix it.

I think higher bias setting should lower high frequencies, not raise them. ?in my experience. to raise, use lower bias setting, therefore.

Thank you so much for this video.

Hi there, I hope you still see these old comments. I just landed a Sony TC-K470 from a thrift store and I'm trying to get it working. It's making the same whirring noise on powerup as this one, but the eject button is doing nothing. It looks to be in pretty pristine condition otherwise so I figure replacing some belts will do the trick. If I want to open up the transport like you do in the video, how do I go about that when it does not want to open up? Thanks a bunch, really informative vid.

Достойная дека!👍

Paul, all excellent from me

The more you disassemble the mechanics, the more possibilities for a bad build. I have a Sony TC-K661S and I never split the center for the small square belt when changing belts. Just loosen the screws and pull the belt to the engine on one side. The surgical tool of forceps helps me. I tighten the screws and assemble on the rest with the big belt. If I don't want to clean the inside of the mechanism, it's pointless to take it apart. I've done it several times and it's always OK.
PC repairman Marko Minesi's rule: be a little lazy and start with simple things. Play the hero with a screwdriver only as a last resort.

Thanks. This has been a great help. I replaced belts on a Sony TC-K520 with the help of this video and it worked well.

Gutted. I've had cassette deck from new. Been in storage for many years now. The issue was identical to one in your video. With your video, I was able to quickly change the belts and give it a clean. Looking forward to playing some old tapes. It powered on and seemingly made all the right noises and the capstan was spinning. Loaded a tape and nothing. :o(

Question: how would you begin this work if the door won’t open? Can you reach into the gear and turn it manually?

Hi Paul, great video’s, I’ve repaired a couple of decks by watching them, one thing I’ve not noticed you talking about is de-magnetising the metal parts and heads, is this something you cover in a video I’ve not seen?

Thank you Paul, you helped me bring my 1990's sony 611s not only back to life but as good as new!

Just found you - And sorry for the late reply - but in answer to your question I like to hear voiceovers occasionally. For me the family background noise makes me feel more at home. Cheers - Mike.

Was a great help and encouraging to disassemble my TC-K 711 and replace the belts.
Why in God's name are the sonic belts turning into such a black sludge?

Hey thanks for this. I have just changed the belts on mine extremely carefully, put it back together and everything worked beautifully apart from play! Though it might be the gears so played around with them and thought I had it, now the door won’t shut and it won’t play 😢😢 At 12.53 on your video you can see the sort of lattice black plastic joining all the bits and pieces and I noticed one of those on mine is snapped. Would this cause the sort of issue I’m seeing? Cheers.

Paul, there's two metal staging rods for the capstan belt as well. You can stage the belt the same way you staged the mode belt. They might not appear that that's what they are, but they are. I know from first hand experience.

Brilliant Vid mate, wish I'd watched this first rather than another vid on you tube, I took apart with the door closed rather than open and I've knocked the gears out of alignment trying to put the small belt on, I knocked the taped opening gear out I think, put I hope I've put back correctly, refitting it back tonight. so will see. If I'm unlucky and of the plastics get damaged, can you still get replacements?

Good work , complicated transports. The mode gear and location sensor have alignment marks for assembly.
Don’t ask how I know.

Thanks Paul - great vid and hope you get all the likes you desire..

nothing new! will you shout it?😅

This is a great vid. I like the voice over and the close-ups. I searched hi and low for a vid that covered this particular drive unit and this is the first one I've found - so massively helpful - although I'm halfway through the pull down but still finding this enormously helpful. Mine is the twin cassette deck with dual capstans' but the same drive system. Thanks mate!

What is the size of capstan belt in this deck?

it would be so much more useful to just post the web sites for pinch roller and other components. THIS is why we are here. Don't understand me wrong, your storytelling is fantastic but we just need the web address for the parts. That's it.

Hi Paul, where did you buy the replacement pinch roller from ?

Voice over works fine! Very good repair video, I like your style, and it's well lit.

Sony TC-K81 3-Head Cassette Deck is turnon, but no PLAY, FWD,RWND, but all licht are on, can you help Me Please

Voice over works fine! Very good repair video, I like your style, and it's well lit.

I have a Sony TC-K615s, but the power transformer blew up, where can I get one to replace it? Thanks

That is one crazy complex transport - you should add one drop of oil on the capstan before putting on the washer that holds it in place. Voiceover is much better idea.

Such a nice professional Sony cassette deck. I love tape decks that are full of features.