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@pwrestoration thanks for the street view! Been a long time since I wandered British streets

I quite like the aesthetic of drawer fed cassette decks too, but I do like to keep my heads super clean. With this design you would be relying on a head cleaning cassette rather than manual cleaning, and I am not a fan of those. Alternatively you are whipping the top off all the time, not a fan of that either. It would be nice to have one as an occasional use deck, I get that.

Hvala na objašnjenju ,imam upravo taj problem sa mojim pioneer dekom.

This was very helpful. 😁I have a Sony mini system that suffers from microswitches that do random weird things. Now I know how to repair it thanks to you.

I wonder why they spend the effort with all these resistors, just to spare a few wires from the pcb to the microcontroller. It seems to me as if they ran out of digital I/O pins and had to do the resistor trick, where they only need a single analog input. Or maybe the flex cable and the connector become cheaper when they have a few less wires, and that overweighs the cost of the resistors.

Outstandingly precise and detailed! I wish every "how to" video on RUclips were like this. Many thanks! Got my deck working beautifully again. One suggestion ... where you take the cables off of the circuit board between 3:03 - 3:09, it bears mentioning that those cables have a clip at the bottom that holds them to the receiving end. I was on my way to damaging my circuit board before realizing this and then used an extremely small screwdriver to help pry the clip away while tugging on it. Thanks again.

THanks for this video! It's rally needed as it's not intuitive. I've figured out the same when a second-hand JVC AVR was showing the same issues.The IC measures the resultng voltage from the resistance in the circuit and figures out what it was commanded to do. It's interesting the values are chosen with such odd values: 2, 2.7, 5.6, 10, 30. Pressing any combination of two buttons will not result in a duplicated resistance value, since functions like next song require pressing play+rewind. I tried the 12Voltvids solution of cutting tem open and cleaning the little metal dome and contacts for oxidation, but it's just so much easier to order replacement tactile buttons.

Thanks for sharing this, Paul. I never knew this, quite ingenious design.

Tactile switches tarnish over time so the resistance when pressed is higher than zero. I've had great success removing them and soaking them in alcohol in a zip lock bag and ultrasonic cleaner. The alcohol evaporates pretty quickly. I'm experimenting with another liquid cleaner specifically for removing tarnishing and oxidisation. Some decks use tactiles that are difficult to get hold of so cleaning them this way is a good option. I've not had any returns yet. Hahaha, I just heard the comment about tapeheads forum. Totally get where you are coming from, but there are reasonable folk on there that do take their medication 😅

A man with your skills should be working on higher end decks than this pos! Sorry!!

I think this is the problem on my tc-ke400s. None of the buttons do what they are supposed to do and even pressing play make the deck rewind but only the one real turns which chews the tape up!! I don’t suppose you know if all Sony decks have the same buttons so I can order some before taking the deck apart?

You seriously need to check out Aiwas ADF800 Or the ADF880 for what they cost they are truly amazing.

Great video as always. Quick question - do you know of any available replacements for the mode select motor? This seems to be the same in most Sony decks, I have a TC-K 620 which seemed to have been incorrectly reassembled during a belt change and it seems the mode selection motor is dead. Would be keen to try and swap it for a new replacement one if such are available.

I learned about this when I was trying to fix a Pioneer CD player with some buttons that didn't work at all. The switches seemed fine, so I looked into the service manual and sussed out the whole resistance thing. It's a good public service to get this info out. In my case though, some numpty had done something with the control board, and there was a solder blob causing a short between a couple of lines on the control IC - got rid of that and all the buttons started working, although as I had bought replacements (which were not cheap, as Pioneer in their infinite wisdom used 2-pin tact switches which are much rarer) I replaced them anyway as a few were "soft" and/or required a harder push to get them to work.

good explanation and good tips !

👍👍

Tenho um single CD player CD164. Made in Brazil

Can it operate without the sylascope or u need that in order for the frequency to emit?

I just fixed my tc-k707es and noticed it didn't have a ground wire like this model. They're both practically the same any idea why mine doesn't have it?

Hi i got a question i have a sony ps t2 it spins i calibrated it but when i wanted to play a vinyl the tone arm doesnt move the automatic return works everything seems to work except that tone arm not moving forward please if yall know how to fix it let me know

Hi what a fantastic video my friend. Thank you. I wanted to share my problem with a similar deck. Mine is TC-K815S. I paid a lot for it about 1 year ago. It is in mint condition both cosmetically and mechanically. It was actually as good as brand new. You won't believe, in 1 year that I have it, I recorded only 2 songs. I've kept it ON for almost every day, reason being I keep it with source button ON to watch LED dance to tv, cd, tuner or whatever I am listening. All of a sudden, it doesn't play. To get it to play, I used to press play and stop super quickly a few times and it would then play. During the last 1 month, that fast finger work of play stop play had gone to 20 to 30 times. Now to get it to play, I've had to remove the door cover, press play and lift the pinch roller with a screw driver all at the same time and only then it plays. I am not techy but I do feel it's all just a matter of dust and needs cleaning. I am just too afraid to remove the transport. Woukd it be possible to clean other areas you may know that could fix this issue. Also sometime I press open to eject and I hear motor and it doesn't open so then I quickly keep pressing open close and then it opens and closes fine. I am very sad to see what has happened to my deck and seek your advice. Thanks and regards, Sami.

I love how everything comes right apart easily and goes back together the same. Easy to work on!

I bought a second hand philips Aw-7550 dual cassette deck. Speed is a bit fast. Unable to adjust

more like knackeredmichi amirite

In the early 1980s, when I was a teenager, I lived just outside Glasgow and behind my house was a recycling centre. I wish you could have seen this place. Stacked up on each other were tons of old record players and radiograms. Dansettes and Garrards, for example. Also, inside the place were lots of BSR decks. Lots of old electric fires as well and other great electrical items. All these items were in great condition and were ready to be destroyed. I managed to sneak in at night save a large number of Dansette record players and BSR decks. They were all in great working order. The people that handed these items in were horrible. If they saw you at the centre, they would drive away, so that you wouldn't get their items. Their vehicles were always packed full of stuff.

Had to work on the same deck at almost the same time. The mechanism that lifts and lowers the heads was stuck. Also the small mode select belt was loose, it was something like 35mm *1.5mm and somehow it was out of stock in all the shops around and had to wait for it for quite a bit, but finally got it working.

I know you can try reconditioning the old motors by adding a drop of oil and running them for extended periods but results vary - as you noted there is sometimes excessive play on the shaft and I had instances when the 'recondition motor' seemed to work great but would start squealing / whining after the deck has been on for like 1h+. Replacement Mabuchi EG530AD2B are only a few EUR / GBP - they fit perfectly and speed wise I found they pretty much don't need any adjustment if you got new or decent condition belts - last one run 2996Hz when playing a 3000Hz tone from a calibration tape.

I had a Hitachi deck with the same type of cassette system. It was a good deck!

I used to own that unit back in the day. It was Awesome! Well till it quit on me then it got lost in a move. Still have all the wonderful 💿 cds it produced though.

Can i buy tc k561s?..how is the sound quality?..

magnificent!

Hi Paul , would it be possible to get a contact number off you, I’ve just bought one of these machines, and I just need some advice, if you could help cheers Mike , great video

Bro i need help from you. If you help me. Technical.

You could use a Din to RCA adapter 😊

I purchased a unique NAD L-40 that has CD , tuner , and single rca input off Ebay. Sadly the CD section reads "disc error" or "no disc". When opened up and after cleaning the laser still no use!. But I notice that disc ALSO wont spin? Is this fixable? What is reason older NAD wont spin a disk with a clean laser?

I found this really interesting. I will look up Ham Radio as well, see what it takes to get involved, cheers

Good job, thank you for also showing a suitable replacement type for that reel motor. I would have transferred the metal wrapping from the original motor which is hid under the nak sticker, it does shield from spark interference of the motor which could possibly be picked up by the tape-head.

Excellent informative video thanks!!!

Hi thanks for taking the time and trouble to produce these very informative videos. I have a Sony TC K715S that requires a capstan motor. Please let me know where i can obtain a replacement. Many thanks.

Nice repair. Back in the 1980s, as a young man, I was obsessed with all types of cassette mechanisms. I loved playing and repairing them, but there would always be something wrong with them, such as wow and flutter, hiss, bad azimuth alignment, pinch roller problems. Then you would have the cassette tape problems, such as it chewing up, tightening up, the pressure pad getting clogged with ferric oxide. When the CD player came along, this was the ideal machine I wanted. You would press a button and it would play each track instantly, with nice clear sound and no wow or flutter, or hiss. I never looked at another cassette mechanism again. They were fun at the time, but I would never go back to them.

the reason why it has 2 decks is so that the person being interviewed can have a copy to give to a solicitor, I have a recorded interview of a friend of mine handed to him after requesting a copy, both tapes have a timed voice over that will match the copy the police have

this one was bellow the top end model but itwas released later a cassette deck 1.5

My father was a nakamichi user but so many times i saw him send them cassette decks and not only to repair, so i think they all were badly built. The so talked about Dragon was my worst deck ever and bought it twice ,once in late 82 and other in 1993, but remenber to record cassettes in a 1000 with a nr module for my first family car, at home i recorded reels, a car that came with a pioneer radio cassette player ,while all others had 8-track cartridges , this in a BMW 76 523i what a car , i still have it. about this deck i thought this were the best series but maybe because at the time i didn´t use it much, the deck was a "cassette deck 1" as all the functions as the CR-7 or the ZX-9

Excellent. Please post any more you have like this. I have a laguna 2 1.9 dci here in Portugal in absolutely beautiful nick and would like to keep it. Word to the wise, cost of living here very reasonable, except vehicles and a few other things. My lovely 2005 Laguna was 2.5k. And a bargain, relatively speaking. Just cleaned the egr valve this very morning, after much youtube study, all ok. For renolink, one needs an approved obd adaptor, genuine renolink software and paid for activation code, about 135 euro. I already tried the chinese cracked software version, 25 quid, full of viruses and can brick your entire system, it is currently in a portugese landfill after it freaked my pc out, sure as hell did not connect it to the car. Good luck and God bless all.

Come back

First of all, excellent job! One thing about this deck stood out to me; this is the first time i have seen low resolution meters, such as these, that have a peak hold function. Impressive.

yes it worked! lol took 2 tries but it worked, had to use a knife to pry off the glue after but it worked! lol the caseback had probably been stuck for 20+ years

Look up the TDK DA9000.

What about the CD Resurfacer Kit should give the same finish.

I have a couple of sony TC-V7 drawer fed decks , the belt kit comes with 5 belts and i've fitted 4 but can't find where the 5th goes, I do know it drives the slotted wheel for the light sensor as it plays for a few seconds then switches off, I managed to remove the top of the plastic cover over the transport and shone a torch in there and it plays fine, the moment I switch the torch off the the tape stops, I have the service manual but still can't find a photo or text regarding how to get into it, i'd love to have just 1 working at least (both decks have the same problem)