I recently worked on a Pioneer CT-F700. A monster cassette deck. It needed 4 new belts I think plus the rubber on the idler pulleys needed rejuvenated.

I would dab some white lithium grease on a qtip and lube all those mechanisms where parts are sliding.. That would quiet some of the moving parts down, as I'm sure the 30yr old grease once there is long gone. Tape decks can be a real PITA. 😅 At least you got it working again. 👍

As for the deck 2 issue : There's a solenoid that is in charge of moving that white gear .In my Yamaha deck tape it was stuck at "on" position because one of its leads touched the other .I had to put a tiny piece of shrink/insulator to make sure they won't touch again and problem solved . My guess is that when you disassembled it - it moved and came back to life .If the issue returns - take a look at that solenoid .

It's a good idea to clean the capstan (that controls the tape speed) and pinch rollers as well, so the tape won't stick to them, and wrinkle. Next up, adjust the tape speed, and align the head azimuth!

@CDJF1

Жыл бұрын

most important though is demagnitize the heads and transport path.

@MikeDS49

Жыл бұрын

@@CDJF1 I'm on the fence about this. With 2 head decks, the head will demagnitize itself when recording due to the high frequency (~100kHz) bias signal passing through it. I've never seen any objective evidence, only "it sounded better after". The rest doesn't really hold a magnetic field for long.

the rubber is always a problem on old decks

Good fix Aidan👍 I think you got lucky using brake cleaner 😮but you got it working. A thorough cleaning of the drive system may be in order. Nice video, see ya next time.

Just to add to this; I fixed a Yamaha KX-130 with a similar counter belt problem. The belt snapped and left sticky black goo all over the tiny sensor by the right capstan. The black goo made the deck think the tape was not moving. cleaned it all up with 99% isopropyl and removed the remnants of the belt. All fixed up, runs fine. Interestingly the sensor looks for a bright/dark/bright pattern as the right capstan moves. Thanks for this vid, it put me on the right track re: counter belt.

I'm so glad you made this video! I am having the same problem with a portable tape deck of mine and now I know what to look for when I open it up. 😀❤️ Have an awesome rest of your weekend!!

I have a Yamaha KX-1200U and the main drive belt “melted” just like the tape counter belt in your video. I tried everything, except brake cleaner, to clean it and it was a total pain. Wish I had seen your video first. Nicely done!

Good job! Those melted belts are a real PITA. I've repaired two dozen or more old decks, cassette, R/R and even 8 tracks. The melted belts are surely the worst thing to see when you pop the top, but nearly always it means the deck is still mechanically sound.

This motivated me to disassemble my Yamaha K-850 for a complete belt service and cleaning.

I've seen belts do that before. I found a couple outlets that sold various size belts in a mixed bag. Some wide and some round. Found them on Ebay. My tape deck from the 70's turned out to be the main drive motor. The shaft was very slow to turn. I should have used a light oil on it but me.. I had to take it apart. Getting those brushes back in place was impossible and now the motor turns but no tourque. So I'm looking for a new motor for my Denon. Good Video. Thanks.

@Poppinwheeeeellllllieeeeez

Жыл бұрын

If you take a motor with brushes apart you can make shims to pull the brushes back.

Nice to get bonus magic when you had thoroughly analyzed it

Mine had the same issues. Same thing with the gear and tape counter. I couldn't get the bside to engage. I think it was missing something. The one side sounds great though. I'm OK with that

This is a normal almost common problem in old decks. Very messy to clean up old belts tthat are disolving them selve.

The pads on many of my old cassettes are hard or glue-failed and falling off. Restoring these could make a great video if you know how! 🙏

and i have that problem with some kid when i press play deck starting rewind and sometimes fast forward

Clear bright white plastic is often nylon, and will not easily becoming brittle. The older stuff that becomes yellow is often bad. Using solvents is safer if you try some first on a small spot, and observe if it will not take the shine off the plastic. If not, you can soak the wheel for a few minutes, and use a brush. I think I would try white spirit (like terpentine) here.

You better stick with your 70s receivers;-)

lol loved that left side....lol

Doesn't brake cleaner dissolve plastic? I think I would use alcohol. And should you maybe use just a tiny amount of white lithium grease on the small gears before you put it all back together? And FYI, on eBay you can buy an assorted pack of 50 cassette deck belts for about $8

Olá Como usar o marantz 4270 como pré amplificador Grato Abraços

Misread the title, thought it was a 1970s Yammie. Was hoping to see a Wedge. Still, that was a weird one, eh? The fluke belt jam and the 'magic' fix. You get to see it all, don't ya?

Hope when you get out of Jail you will make some more videos. Good luck

having the same issue with my technics 😞

What you could’ve done is got a toothbrush and sprayed some of the brake cleaner on it to remove the sticky residue from the gearing on the tape deck clean all the capstans end pinch rollers

KZread deleted my comment on a great source for belts, you tube is a pain in the butt. Turn table needles, all one word, every belt I have bought from this small company in Corvallis Oregon has been perfect.

@erikdenhouter

Жыл бұрын

YT only allows links to YT 🙄

@henrychinaski5223

Жыл бұрын

I've used these guys for at least 20 years. Had a problem with just two orders and they corrected things for me. There's another guy in Colorado who sells belts, bulbs, etc...can't remember his info at this moment.

@insolentstickleback3266

Жыл бұрын

@@henrychinaski5223 Thanks for the comment Henry! On my last order with turntableneedles, I was in a bind and they let me come pick it up rather than wait several days on shipping. I live only 40 minutes out of Corvallis. They are really nice to deal with, and take pains to make sure you understand how to get the right belt the first time.

@henrychinaski5223

Жыл бұрын

@@insolentstickleback3266 I agree! Sometimes I wish I was still in Sheridan, but here I am many states east of Oregon so I wait on snail mail for the belts I need.

What about using acetone to clean it?

@R3TR0R4V3

Жыл бұрын

Acetone & plastic = 🚫 especially if it's ABS type plastic, it'll melt & totally ruin it. I would try some Isopropyl alcohol, 91% which should clean it up well.

WD-40 or mineral spirits clean that junk won't hurt plastic or nylon

Good luck ordering belts. You'll probably have to buy a bunch of different belts and see what fits.

99.9 percent Alcohol will melt the goo effortlessly. Ultrasonic cleaner with 99 alcohol. Watching people struggle cleaning goo is hard for me to watch. I just smashed a casette deck because it would not work properly after 3 days of effort. I have no love for tapes.

@R3TR0R4V3

Жыл бұрын

+1 on the isopropyl alcohol.. That's safe. Brake cleaner is quite risky, as some of it contains acetone, among other things that'll melt plastics.

@trippmoore

Жыл бұрын

So just fill a jar with 99% isopropyl and then put the gooey gears in there then set that in the tank of your ultrasonic cleaner? I have dealt with a few of these and have nightmares cleaning with isopropyl (not sure if I used 99% or not) and q-tips and paper towels by hand. Took me 4 or 5 hours over multiple days to clean the goo from the transport of a Nak CR-3A. But seeing as I got it for $50 and it looks and works excellent now it was a good deal.