Walkman WM-F2085 Belt Repair, Speed Adjustment, Cleaning, and Features

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In this video, I refurbish a Sony Walkman MW-F2085 by replacing the old belt, cleaning the tape head, pinch rollers and capstans, and calibrating and adjusting the tape speed. Finally, I go through the cassette player functions and features.
00:00 Intro
00:29 Disassembly
02:00 New belt fitting
03:47 Maintenance
03:50 Capstan and pinch roller cleaning
06:16 Tape head cleaning
06:52 Headphone jack socket cleaning
07:41 Volume control cleaning
08:46 Tape speed check
09:51 Tape speed callibration/adjustment
10:07 Player features
12:17 OMG, the editing this one took!
Links
This Walkman's unboxing and daignostics video • Not a Typical Sony Wal...
My usual belt supplier www.fixyouraudio.com
The Retro Future Channel (Gameboys, Walkmans, etc)
Techmoan's 'Wow & Flutter Meter Basics' video • Wow & Flutter Meter Ba...
Software used to check tape speed www.ant-audio.co.uk/index.php?...

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Опубликовано:

7 авг 2024

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Комментарии : 86

@paddyburke4148 3 года назад

Cheers for posting, yourself and a few other RU-vidrs are an amazing resource for keeping old tech alive.

@CBitsTech 3 года назад

Thanks very much. I'm just making it up as I go along, with much research online.

@SashaTheValentines Год назад

this video helped me refurbish the exact same walkman today once I got the belt in the mail! thank you :)

@CBitsTech Год назад

You're welcome. That's great to hear. Well done!

@HooverLux 3 года назад

I have a whole series of retro audio and gadgets coming up, first time changing belts etc, so these videos will help me so much.

@CBitsTech 3 года назад

I found your Retro Tech paylist last night, and I'm working my way through them.

@CBitsTech 3 года назад

PS, you have sooo many videos! Good work on getting the content out there!

@PAULYHEDRA 6 месяцев назад

Thank you VERY MUCH! Your tutorial helped me with my WM F2081. Adjusting a little bit the speed tape as it was having problems playing slow. God bless you.

@CBitsTech 6 месяцев назад

Thank you, you're very welcome.

@gleuszler Год назад

Another thing, when adjusting the speed, make sure you are using FRESH batteries. If the batteries are even somewhat weak, the player will play too fast when fresh batteries are installed.

@CBitsTech Год назад

Thanks! Another good point. Maybe DC power would be better still.

@Robotoda2000 Год назад

@@CBitsTech you could also use li-ion rechargeable AA batteries. They will give a constant 1.5v power output.

@CBitsTech Год назад

@@Robotoda2000 Good idea, it might be worth investing in a pair. Thanks.

@TheFilwud 3 года назад

Excellent! thanks to your videos I have fixed my blue Sony beastie and have ordered a belt for my one of these. looks like another five minute cure. If only fixing an Aiwa F770 was as easy!

@CBitsTech 3 года назад

Thanks. Good news. Yeah, I had a look in a Sony deck a week ago, much more complicated than a Walkman.

@pnpplpnppl 2 года назад

Very helpful, thank you.

@aajaysea 2 года назад

Thanks!

@kells77 3 года назад

Have one of these too bought it new back in the day

@CBitsTech 3 года назад

Still working? Still the original belt?

@kells77 3 года назад

@@CBitsTech I not tried it it has the origial box and instructions and head phones etc

@gleuszler Год назад

If you are using a CrO2 or metal test-tone tape, you must set the "TAPE" switch at the top to "CrO2/Metal" instead of "NORM." Otherwise, the tone outputted by the Walkman will fool the calibration program and give you a faulty adjustment. Additionally, the "DOLBY NR" switch must be set to "OFF," otherwise, it will also alter the output tone.

@CBitsTech Год назад

Good points, I hadn't though of that. Thanks!

@InsideOutElectronics Год назад

Nice, looks like i have similar one to put new belt in. What is the dimension of belt that youve used?

@CBitsTech Год назад

Hi, I've been watching your video over the last few days (been a busy week). Bench power supply, oscilloscope, you have some nice kit. Sorry, I don't have the dimensions, but I ordered it from fixyouraudio.com and it shipped from Slovakia, they have a good reputation and are reasonably priced, subject to shipping cost. Deck Tech also make good belts. Neither list the dimensions, otherwise people would just buy cheap belts instead.

@markcarrick9999 2 года назад

Thanks for this. I do some repairs on the Sony Walkman and recently go the exact same as you have here. Replaced belt but have an issue with it always kicking back into the reverse mode. Place a tape for a 30 seconds then kicks into backwards talking. Any ideas would be great.

@CBitsTech 2 года назад

Interesting problem. To clarify, when it reverses, does it play the other side of the tape, or the same side backwards? If it's playing backwards, then maybe the belt is either the wrong size or incorrectly routed. I'm not an expert, so could be completely wrong. Other things to check are that the pinch rollers and capstans are clean and functioning properly, and the spindles (or whatever they're called) are spinning and taking up the tape in the cassette. Let me know if I misunderstood anything.

@CBitsTech 2 года назад

One more thing, does off FF and Rewind properly?

@magenta864 Год назад

Thanks for sharing it with us. How much does it woth a working one device of this specific model, in your opinion?

@CBitsTech Год назад

I think proably £40 working in fair condition.

@bubblegum751 Год назад

I have the same one but one side the headphones jack just throws 1 channel the right side sounds very low how can I fix it

@CBitsTech Год назад

Hi. Mine is the same, a little. In low volumes one side is quiet but it's not so bad at higher volumes. I don't know the answer, but I did a little research and it could be many things. First, Make sure you're not using a modern headphone with a mic, as these have a different plug arrangement. If you're using an old fashioned stereo headphones, try cleaning the inside of the headphone jack socket by cutting the end off a q-tip or cotton bud, spraying IPA on the stem of the cottonbud and pushing it in and out the headphone socket. If it still doesn't work properly, it could be that the play heads are out of alignment, or a bad solder joint on the headphone socket, or you might need to replace the capacitors. Thinking about it, it could be that the volume control is oxidized and might need some contact cleaner. Please let me know if you get it fixed.

@janetballz5641 Год назад

Question I have a different sony walkman from the 80s but I replaced the belt but it runs a little slow. Know why maybe?

@CBitsTech Год назад

Hi. I don't know why, but they usually have a small speed adjustment screw you can use. Often it's accessible through a hole in the circuit board, sometimes through a hole in the case itself.

@jomvit 2 года назад

Hola Sabes cuales son las medidas de la correa ( ancho - espesor- diámetro) Gracias

@CBitsTech 2 года назад

No lo siento. Este sitio es bueno y no necesita las dimensiones www.fixyouraudio.com. Aquí está el enlace del cinturón para el WM-F2085 fixyouraudio.com/product/belt-sony-wm-f2085/

@megronamy1 3 месяца назад

Where did you purchase the new belt and test tape. Thanks

@CBitsTech 3 месяца назад

Belts are best from DeckTech on eBay or fixyouraudio.com. I'm not a fan of test tapes, so watch the two testing methods on this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Zy-Aotx1BQ0.htmlsi=IAPOuWwNBOfxPuB0

@Undercoversteve96 Год назад

Hey there. I wanted to see if there was any way to see how to fix the screen in any way. Mine is showing some but not all of the bits of the numbers, making it illegible especially for the clock and radio stations. I hope you read this and if you have any tips, I’d much appreciate it!

@CBitsTech Год назад

Hi. I don't really know the answer, but I guess it's one of the following: If the screen is connected to the circuit board with a ribbon cable then detach the cable and reinsert it, maybe cleaning it gently with IPA. If the display is soldered to the motherboard then you might be able to reflow the solder (search RU-vid for 'reflow solder'). Or, just buy a replacement from eBay and keep yours for spares :)

@Undercoversteve96 Год назад

@@CBitsTech thanks! I didn’t expect to get an answer from an old video. It appears it has a ribbon connection, but I’ll have to figure out a way to get the screen out of the front if the connection issues aren’t inside the back housing where you opened it up in the video. Thanks for the tips though!

@CBitsTech Год назад

@@Undercoversteve96 You're welcome. Hope I've helped.

@woofaki5550 2 года назад

Hey man i have the F2081 i opened it and its very similar to yours.The belt is completely destroyed and sticky so i need to clean it up and find a replacement.The problem is that i cant yet seem to find the belt dimensions,in order to search for it here....From what i have seen on ebay they share the same belt.Do you remember the belt dimensions?

@CBitsTech 2 года назад

I didn't have the belt dimensions, every decent RU-vidr who repairs Walkmans (and me) uses fixyouraudio.com. This might be what you're looking for fixyouraudio.com/product/belt-sony-wm-f2081/

@woofaki5550 2 года назад

@@CBitsTech Thank you,i changed the belt but it seem that the pinch rollers need to be changed also....Not sure where to find these tho.If you got any idea let me know please :)

@CBitsTech 2 года назад

Sorry I didn't get back to you, it was a very busy time for me and I missed a few comments. Unfortunately (or fortunately), I haven't had to replace pinch rollers and I don't have a suggestion for where to get them. I searched RU-vid for 'pinch rollower replacement' and there are a few RU-vidrs who I like that have done this. Look for 'Old School' (who seems to have the most videos), Techie Zeddie, and maybe ANT&TEC. They might recommend a supplier. Good luck!

@mralpacagatoryt6105 2 года назад

I have done all of this with the original belt but whenever I play it the Walkman will just play a loud static noise do I need a new belt or is it a problem with something else

@CBitsTech 2 года назад

A static noise is unlikely to be the belt. I'm not sure what it could be, other than checking that the batteries have sufficient power. Do the solder joints near the headphone jack look good? Can you post a video showing the problem please, and put a link here?

@mralpacagatoryt6105 2 года назад

@@CBitsTech I have figured it out the belt was stretched and worn out so I had to replace the belt and unclog some junk from the gears but thank you for responding

@CBitsTech 2 года назад

@@mralpacagatoryt6105 Excellent. I'm glad you got it fixed. Sorry for the late reply, it has been very hectic here.

@mralpacagatoryt6105 2 года назад

@@CBitsTech it’s alright I understand

@chemz781 Год назад

I have a Sony WM-F2085 walkman, just orderd a new belt ,but the motor is super loud, those the dc motor need replacing or just cleaning. Or the new belt will do the trick? Thanks! :)

@CBitsTech Год назад

I'd try the new belt first. I've not cleaned or replaced a motor so that's beyond my experience. @InsideOutElectronics repaired a similar model which had a noisy motor (see 11 mins), but I think it was quiet after the new belt was fitted. Here's his video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XVHGI8yh9aY.html

@chemz781 Год назад

@@CBitsTech Aha yes I think its because it dosen't have a belt installed. Thank you so much for the help! 😊

@CBitsTech Год назад

@@chemz781 My pleasure. If you remember and you can find these comments later, please let/us know how it goes. Thanks.

@chemz781 Год назад

@@CBitsTech The belt is instaled and the motor is very quiet now! It really was just the belt, thanks :) But the speed adjustment screw won't work...

@CBitsTech Год назад

@@chemz781 Excellent news on the belt and motor. Did you use a tiny flat-head screwdriver tip for the speed adjustment (as per hereru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-eKxozhzJu7o.html)?

@justme7920 Год назад

I got one of these, looks and plays great, but the inside where you put the tape smells weird, hard to describe, like burnt something. What could it be? Thank you

@CBitsTech Год назад

Not sure. Did it come with a tape in it? Chrome tapes sometimes smell waxy.

@justme7920 Год назад

@@CBitsTech no, no tape.

@justme7920 Год назад

@@CBitsTech smells like burnt electronics.

@CBitsTech Год назад

@@justme7920 Sounds worrying. But it's working okay? If it's running on mains power then check the power adapter specifications and polarity. If it's running on batteries, see if they run down more quickly than expected. Maybe there's a short somewhere.

@justme7920 Год назад

@@CBitsTech running fine on 2 aa type batteries. Could it be cause it was unused for years?

@Trev794 3 года назад

Looks like quite a easy belt swap. How does it sound when playing??

@CBitsTech 3 года назад

Hi. Yes, it is easy, bit fiddly. I edited out a minute or so of me trying to get the belt on. It didn't sound too good at first. It was a little fluttery and not very good on the left channel. Sounds pretty good now it has had a chance to work the old lubrication around. I think the volume wheel isn't right. At very low volumes it's louder in the right ear, but at louder volumes it's ok. Also, playing one side of the tape is quieter on the left track. Maybe it will get better. I haven't used it much since finishing the repair yesterday afternoon.

@Trev794 3 года назад

@@CBitsTech thats the only thing about Walkmans that turns me off of buying one. But videos like yours do show how its just geting over the trepidation of opening one you have to get over. Where do you buy your stick battery's from, Is Chinese eBay sellers the only hope?

@CBitsTech 3 года назад

I like fixing stuff and learning about stuff. I'd do more of it if I had the space, time, and money 😀 Here's are the gumstick batteries I buy, www.ebay.co.uk/itm/Rechargeable-Battery-NH-14WM-Gumstick-1450mAh-Minidisc-Sony-equivalent-minidisc-/371451382056?_trksid=p2349624.m46890.l49286

@CBitsTech 3 года назад

Speed is slowing down again. Next action is to find a suitable mains charger, set the speed again (by ear, comparing to RU-vid Music track), and see how it goes.