Very interesting fix. I used to work for B.T. many moons ago, left in release 92. I well remember working on building sites and the different trades having their radios on different stations, used to drive me nuts. I once waited until they went to lunch and hid their power cables in a riser where I miraculously found them as I was leaving. Happy days.
"Unless of course it's lined with lead on the inside". 😂🤣 Every time I watch your B&O repairs I can't help but admire the craftsmanship that goes into their products.
Thanks for the video. I wanted to see the inside of a Beosystem 10 for long, but never expected a video so clear and this long. Probably this is the most detailed and the best videographed boombox repair video that I have ever seen. Every tiny bit perfectly zoomed, exposed from correct angle, correct lighting, in crystal clear high definition video. And the icing on the cake is that this video is created by a person who did not know the difference between Erase and Play/Record heads of a boombox at the time he did it. Hats off to you!
On the tape transport, the dark coloured head is the erase head and the next is the rec/playback haed. The chewed-up tape was probably causing your cassette tape to skew across the pinch roller and not moving smoothly over the heads causing those fluctuations in the sound. Nicely repaired, Sir !!
I also would suggest if possible and a good reference tape deck is available to record a 440 Hz test tone on that test tape. Playing this back in the machines to repair the speed can be adjusted very easily using a frequenze messaurement app on a mobile phone.
My first port 'O call after confirming the radio was ok was mechanical from the tape and I would go straight for the Capstan and clean the head for good measure... Just got to the end of the video now and was pleased the system worked....Nice result Vince
Those were the holy grail of stereo equipment in the 1980s. You were paying for the name. Nice repair job. Its always rewarding having something working after doing such a lot of work. Very good!
Nah, they sound good too, for the size, FM reception is better than many other models because the aerial is extra long. It's quite featured too, with a wall mount and external speakers, the user manual even says max volume is at 6 unless using external speakers, it really has some power. And with the rca inputs it can still be used today with bluetooth. This was brought to you by the Beosystem Advisory Service for the promotion of Beosystem 10.
A pulley is made convex (aka. a crowned pulley) to auto-center a belt. When a rubber belt strays to the side it stretches more on the side that's closer to the center (because the pulley is convex). That stretched side bends outward toward the center a little bit, and that extra bit that sticks out towards the center catches on the roller and pulls the whole belt with it.
It’s nice to see you add another B&O to your collection Vince. B&O is one of those things that’s really worth buying broken and fixing up as they’re quite pricey when sold working. Nice one.
Great video I own one of these . I wish I knew how to attach photos to a TH-cam comment. One really cool thing that you sort of glossed over is the fact it's a portable receiver. I've plugged in my 4004 and 8002 table and CX40 speakers for a full B&O system.
Awesome repair Vince... I have many hours of footage of me failing to repair BoomBox's, I have never put one out on the channel. Those tuning dial cords always get me! Nice fix.
The convex wheel on the motor is to help the belt center itself & run true... also might provide traction.... You see a "mild" convex shape in some bandsaw wheels also.... Great job on this one. Very nice....
I remember around 1984-85 when we lived in Central PA. There was a home show at our local event arena and our parents took us. I remember seeing a B&O television that was hanging on a wall. To me, at that age, this was an amazing thing to see. I remember my father saying that we wouldn't ever be able to afford something like that. Fast forward and my dad now has a 55" screen that he can tug effortlessly on a swinging bracket.
Yeah, these products are timeless. I reworked some CX100 speakers for use in my garage recently with new surround foam and some Raspberry PI + 4 ch amp kit (HifiBerry - BeoCreate) available to make it into a modern WiFi/BT speaker. These >30 year old aluminum box speakers sound better than ever and look brand-new. I used to work at B&O in their R&D department.
Hi Vince. The black one is the erase head that is an electro magnet. The middle one is record playback head. And the one with the tape wrapped around it is the pinch roller. Hope that helps you.
The 'roller' that has the higher point to it that the belt goes on. The belt will try to move to the highest point of the roller as they go round. The strength of the belt will only allow it to go so far, as the belt wears slightly or stretches over time it will still be able to keep the same tension as it will ride higher.
Now that is my style of board to work on. I was trying to see how they are driving those 4-ohm speakers which look to be the 20 pin IC under the heatsink. Great job Vince and keep them coming!
You were fortunate in that it came apart so easily. Bang & Olufsen were renowned for making some of their products very difficult to get into. It wasn't unusual for screws to be hidden under sections of 'stick on' costmetics' etc. It was partly to disuade engineers/technicians who weren't B&O's agents from doing repairs.
Funny you should say that, because I'm trying to remove the back panel on mine right now, and it will not come apart. I've removed the 3 screws, but something is attached at the top, where the aerial end clips into place. It feels like a screw but I can't see anything there. Pulling at it bends the back panel, which will break if I lever it. All i want to do is see if the belt is gone because the take up reel isn't turning. And I can't find anywhere that sells belts for this model either :(((
I'd love to see you rocking up at a building site with this on your shoulder, Vince! 😂 What a lovely looking item though, those Danes sure know how to create a beautiful design.
🤣🤣With a lob sided limp because of the weight of it. I don't know how they make there products so heavy!! You're right though Steve, when you think about the other Boomboxes from that era this one still looks good today 👍
@@Mymatevince The black pinch roller looks like it`s gone egg shape on the tape deck... ??? i had the same problem on a Phillips unit when i was younger :):)
@Lassi Kinnunen 81 luckily, they still sell and make TV's, speakers and headphones worth buying. Those laptop gimmicks is just selling points for the laptop manufacturers sadly
@@Rose.Of.Hizaki As someone who mods and tinkers with old electronics, this hobby and knowledge of older technology don’t automatically turn me into geriatric. I very much enjoy my youth than you very much.
someone doesnt get that i meant it more out of respect for their knowledge rather than as a derogatory term. Grandfathers tend to be a great wealth of knowledge.
Have to agree with 'hifismiffy'! I learned to fix these as an apprentice, and I always found them scary! Jammed tape would have caused the roller to oscillate causing the tape to ride up the pinch roller. Great fix,. Cheers
Nice one Vince; wonderful job on getting this B & O boombox working again. You could do your workout by trying to lift it. No one is going to nick it as it is too heavy to do so.
Man, what a steal! I go the Goodwill and you be surprised what you can find. I found great Marantz receiver that only needed a filter capacitor! It was listed for $15. fixed for it $5!
While looking at it disassembled, it's amazing to think about the amount of assembly effort that would have gone in to this product. Those trimmers, coils would all have to be tuned manually, never mind all the hand soldering.
I had a similar problem turn out to be a flat spot on the pinch wheel which on my first check I diagnosed a weak belt change that but it was the pinch wheel. Hope this may help with other tape decks. Thank for the videos.
Great video... Thanks. When you say at the end of the video that "you can still hear the tape" ... that's called 'tape print through' ... the tapes fault; not the unit. Well done & thanks again for this and ALL your videos.
Recognized the tape mechanism, I have a Silver STW66L with exactly the same mechanism (two of them, it is a double deck), only the motor is mounted downside up (or upside down). Pretty good and stable mechanisms. I had replaced the belt (at least clean it) and lubricate the mechanism a little (behind capstan plate). Can hear some wow. But okay, it was an easy fix, for sure. Nice unit and nice construction.
Watching you play with all the rollers and buttons was very amusing hahaha! Also, I never could of thought that 80’s technology could be sooo complicated and tricky!
Nice fix :) The cracked flywheel brought in my mind a thing called diecast rot, if it's diecast metal? One of my model car suffered from it, altough this radio is much older. My modelcar was destroyed in less than ten years. Zinc pest is another name for the phenomena. Not sure though if the cracks at the flywheel are related to this or not.
@@TechGorilla1987 TH-cam & Internet at it's best, learning new things :) Have learned a lot from TH-cam videos myself, for example from MyMateVince videos ;)
That was my immediate thought. I collect toy steam engines of varying ages and zinc rot is one of the things to look out for on the cast parts (usually engine frames and flywheels coincidentally) particularly on older engines. It is nasty business especially when it's a structural part. It can write an engine off.
@@SimonNemeth Paya wheels were particularly bad, although I have seen an 00 locomotive where the frame bent like a Banana! The problem is caused by impurities in the Zinc and there is noting that can be done about it apart from the manufacturers using better quality Zinc.
@@MrDuncl It tends to be lead impurities and it primarily happens in cast zinc made at a certain time. It doesn't tend to be an issue with modern casting.
Unfortunately this was the start of a slippery slope for B&O , basically charging top money for fancy outer casing and design but fitting other manufacturers inners , making a lot of their stuff unreliable , like the VCRs which if I remember correctly where Hitachi inners. I remember taking the back off a 21"MX4000 TV (£1500) in the 90s only to be confronted with a £300 Thompson chassis !!! Much better when they made All their own stuff . Great videos 👍👍
Great video! I always fancied one of these back in the day but a lot of money for what was essentially a quite basic Sanyo radio recorder wearing a sharp B&O designer suit. No Dolby or auto reverse were serious omissions at this price point but they did look wonderful! Ironically, at about the same time (1985-1987) humble Ferguson was offering decent all-in-one compact hi-fi systems made in Japan by Sony no less for about the same price as this B&O. And you got a choice of record deck or CD player thrown in!
4:50 I have to admit that I'm surprised that removing the tape from around the pinch roller actually fixed this problem, since I didn't hear any wow&flutter, only volume changes. I was wondering if the supply reel was getting ahead of the capstan, causing the tape to loose contact with the heads, and that might still have been the cause of the volume changes, but I'm mystified that there were not also severe pitch changes. Anyway, I picked up a 120V, no-LW version of this model at a pawn shop for $10 and the last time I tried it, one speaker had cut out. I've been dreading taking it apart and this video confirmed all of my apprehensions about its serviceability, but thanks for the tour of its innards; at least now I know what I'm up against. Though this B&O model seems to have a few "audiophile" features lacking in most '80s boomboxes, and very smooth sound, the single tone control (despite B&O's fancy name for it) would be a major disappointment in this price range; the model is gimmicky and not very practical as a portable. Ironically, it's so heavy that I fear that some of the flimsier plastic assemblies would be totally destroyed if it ever took a fall. It's a nice little piece of history, but I'm glad I didn't pay the original $300 price.
i recently got one of these (for a lot more than $10!!!) and I'm experiencing a similar problem - the sound balance might be normal for a few seconds but will roll to either the left or right speaker only. If I hit the 'AM' button, it seems to correct the wiring and be balanced again, but only for a moment. Very interested if you tried to fix yours and how it went?!
omg vince i got one for you you gonna love it been working on it for 6years its beomaster 1700 the ultimate challenge to choose the radio freq you need to push a button that then activates a actual gearshifterbox like a car connected to a threadmill :)
I played around with one of those boxes back in the 80's when they first came out at a high-end electronics shop where I would purchase TEAC reel to reel cassettes tapes. I walked away unimpressed by it's sound and features . You could purchase a better sounding portable , that was bigger and cheaper . Nevertheless I'm glad to see some of them are still around today.
I've seen capstan flywheels like that totally disintegrate. Something to do with the alloy (pot metal aka 'monkey metal'), and the dreaded 'zinc pest' or zinc rot. Dampness and high humidity can often trigger it..
@@home-space Yes I've seen old dinky toys become brittle and start falling to bits in a similar fashion. Such a shame when it's something collectable..
I suspect you could have taken that tape wrapped around the pinch roller out without taking the machine apart, but that wouldn't have made a very interesting video! Getting that for 40 quid was a bargain. Those B&O machines were made to last, unlike the cheap Chinese ones that are made nowadays.
Gotta love how B&O put so much thought into the repairability of their products. My thought is that the bit of jammed tape would spool out as far as the play head and shielding the played tape before getting wound back up and repeating the process.
You still have to worry about copyright. TH-cam punishes the creator for copyright claims regardless of their validity and entities constantly make claims against public domain works. Try uploading some public domain content if you don't believe it.
23:50 I believe the brown head is the erase head, which carries the bias frequency; on cheaper decks, it's sometimes just a permanent magnet. Sometimes the play and record heads are one in the same; I think there are also decks where the record head is separate, but in the same case as the play head.
The cheaper decks are much simpler in design but just as painful to service when they fail due to the flimsy parts their mechanisms use. Especially models which used spring-loaded idler assemblies - these had a tendency to fall apart or break without warning, leaving the user without FF, REW or PLAY function (because the idler was responsible for tape take-up and engaged the reel spindles in front when a key was pressed). I've replaced countless idlers in several budget boomboxes because they were too small to fix and those who owned them at the time wanted reliability. Great when they work which is not often, and some of them aren't very good to record on. Quality is poor. I now refuse to own or service these types of decks because of the above-mentioned.
The drive roller on the motor is crowned. It's a well known technique for keep flat belts tracking true. I used to use the principal on conveyor runs. It does look odd when you first see it.
Removing the tape from the roller put me in mind of Star Trek II: The Wrath of Khan. I expected you to be like him extracting the grubs from the creature, "Not all at once. Not instantly, to be sure."
Your video was fantastic mate I absolutely loved it you did a fantastic job at taking it apart and fixing it I’m really proud of you mate well done 👍😊 I would love more of your trying to fix videos
There seemed to be a lot of residual dust in there. You may want to invest in a small air compressor to blow out all that dust. One of my best investments for repair/refurbish jobs. Love the trying to fix videos, buddy.
Haynes Manuals are... Special sometimes... For a 1994 Subaru Impreza, the instructions were as such. Removal of starter. 1) Remove the 3 bolts. 2) Installation is the reverse of removal. No pictures, no nothing. Just those two helpful instructions
If you go in another audio device I would suggest putting a high pass filter on the speakers to protect them from the lowest frequencies below the fs of the drivers and increase clarity and power handling by blocking what they will not play well anyhow. Great video. Thank you.
It’s a known fact that vintage B&O always required patience and a knack to assemble it. Hence why so many “repairer’s” wanted nothing to do with repairing the brand, it takes time to get to know the products from Denmark , try fitting the radio tuner pcb on beocenter 2200 2100 4000 thats fun if you’ve never done one before.
14:33 That's the AM/LW antenna. Those became popular in the mid 1950s, before that, there was usually a big, open coil of wire around the perimeter of the back of the set.
No doubt someone else will have commented the same, but the coils you were wary of disturbing with the fine wires coming off are the MW and LW antennae.
From my perspective Vince you can see the rubber roller bouncing up and down on the silver capstan which would account for increased wow and flutter and not in the radio side so something is caught in the capstan and roller Great video as usual and you can see where the weight comes from not those tiny tinny speakers but proper speakers with large magnets
For the radio testing, why not get a small radio emitter like you can get for your car that work on 12V. You can put a USB stick into them and in a 2m radius or so one can receive their radio signal on other devices. Means you need a 12V adapter too, but at least you get a good signal AND you do not need to worry about copyrighted material being played :) They come as cheap as 13 GBP on amazon.
I have several of those small FM transmitters & by experimenting with connecting various external Aerials to the right point, it's surprising how far the signal will travel, it will easily cover my whole house, garden & beyond! I have tried connecting a Belkin model to my rooftop FM antenna & could receive the signal several streets away! (Make sure to set the transmitter output frequency to one well away from local broadcast stations, to prevent annoying your neighbours radio listening!)
Awesome =D Don't be affraid to press that cotton bud onto the read / write and erase heads btw! Should get a squeakey sound as you move the cotton bud ;)
It sounds like the head may need a slight alignment, but it is fantastic to see you get this going. The pinch roller is critical to tape speed and tension which obviously is critical to how the tape runs across the head. Your troubleshooting techniques could put some professionals to shame.
Just an idea, but if you're worried about copyright and/or have bad FM signal in your house, you could get one of those little FM transmitters used to listen to ipods/phones/etc on car radios that don't have an aux-in/bluetooth. That way you could play one of your videos or other non-copyrighted content for testing FM radio.
Hi, the brown head in cassete department is for deletion of track and silver head have 4 cables 2 of them are for reading from the cassette and other two are for recording
Late 80s and early 90s B&O design is just so classy. We’ve got an early 90s BeoCentre and it still looks futuristic even today
Very interesting fix. I used to work for B.T. many moons ago, left in release 92. I well remember working on building sites and the different trades having their radios on different stations, used to drive me nuts. I once waited until they went to lunch and hid their power cables in a riser where I miraculously found them as I was leaving. Happy days.
"Unless of course it's lined with lead on the inside".
😂🤣
Every time I watch your B&O repairs I can't help but admire the craftsmanship that goes into their products.
Thanks for the video.
I wanted to see the inside of a Beosystem 10 for long, but never expected a video so clear and this long.
Probably this is the most detailed and the best videographed boombox repair video that I have ever seen.
Every tiny bit perfectly zoomed, exposed from correct angle, correct lighting, in crystal clear high definition video.
And the icing on the cake is that this video is created by a person who did not know the difference between Erase and Play/Record heads of a boombox at the time he did it.
Hats off to you!
On the tape transport, the dark coloured head is the erase head and the next is the rec/playback haed. The chewed-up tape was probably causing your cassette tape to skew across the pinch roller and not moving smoothly over the heads causing those fluctuations in the sound. Nicely repaired, Sir !!
I’m so happy
I love any fix where the problem is clear when you get it apart. Seeing the that little bit of tape on the wheel was so exciting.
Ahhhhh, spoilers!!
@@WaffleClap don’t read the comments before watching the video if you don’t want ‘spoilers’.
Thís brings back those good old days when I was a bench tech. Just like detector work. Always be happy when getting something accomplished.
Can i suggest putting some TH-cam Library Music on tape for demonstration purposes?
I also would suggest if possible and a good reference tape deck is available to record a 440 Hz test tone on that test tape. Playing this back in the machines to repair the speed can be adjusted very easily using a frequenze messaurement app on a mobile phone.
Way to go Vince! You are slowly building up the high end B&O stereo system you always wanted when you were younger but could not afford it. 👍
I used to love doing things like this, now I just enjoy watching others do it. Great video!
My first port 'O call after confirming the radio was ok was mechanical from the tape and I would go straight for the Capstan and clean the head for good measure...
Just got to the end of the video now and was pleased the system worked....Nice result Vince
I admire you Vince for not having any problems (seizures) when you try to fix such difficult (hieroglyphic) circuit board
Those were the holy grail of stereo equipment in the 1980s. You were paying for the name. Nice repair job. Its always rewarding having something working after doing such a lot of work. Very good!
Nah, they sound good too, for the size, FM reception is better than many other models because the aerial is extra long. It's quite featured too, with a wall mount and external speakers, the user manual even says max volume is at 6 unless using external speakers, it really has some power.
And with the rca inputs it can still be used today with bluetooth.
This was brought to you by the Beosystem Advisory Service for the promotion of Beosystem 10.
A pulley is made convex (aka. a crowned pulley) to auto-center a belt. When a rubber belt strays to the side it stretches more on the side that's closer to the center (because the pulley is convex). That stretched side bends outward toward the center a little bit, and that extra bit that sticks out towards the center catches on the roller and pulls the whole belt with it.
It’s nice to see you add another B&O to your collection Vince. B&O is one of those things that’s really worth buying broken and fixing up as they’re quite pricey when sold working. Nice one.
Yes these are £200 - £400 on eBay (asking prices, selling prices on hifishark are £150 - 250).
But they're nicer to have and use than to flip.
Great video I own one of these . I wish I knew how to attach photos to a TH-cam comment. One really cool thing that you sort of glossed over is the fact it's a portable receiver. I've plugged in my 4004 and 8002 table and CX40 speakers for a full B&O system.
Awesome repair Vince... I have many hours of footage of me failing to repair BoomBox's, I have never put one out on the channel. Those tuning dial cords always get me! Nice fix.
The convex wheel on the motor is to help the belt center itself & run true... also might provide traction....
You see a "mild" convex shape in some bandsaw wheels also....
Great job on this one. Very nice....
I remember around 1984-85 when we lived in Central PA. There was a home show at our local event arena and our parents took us. I remember seeing a B&O television that was hanging on a wall. To me, at that age, this was an amazing thing to see. I remember my father saying that we wouldn't ever be able to afford something like that. Fast forward and my dad now has a 55" screen that he can tug effortlessly on a swinging bracket.
So happy to see another Bang And Olufsen video from you! Love all the ones you’ve done.
Thank you Josh, they are always interesting. I have another 2 to look at some time in the future 👍👍
Yeah, these products are timeless. I reworked some CX100 speakers for use in my garage recently with new surround foam and some Raspberry PI + 4 ch amp kit (HifiBerry - BeoCreate) available to make it into a modern WiFi/BT speaker. These >30 year old aluminum box speakers sound better than ever and look brand-new. I used to work at B&O in their R&D department.
You are like the mister Rogers of component repairs...
I love watching your vids..
Hi Vince. The black one is the erase head that is an electro magnet. The middle one is record playback head. And the one with the tape wrapped around it is the pinch roller. Hope that helps you.
The 'roller' that has the higher point to it that the belt goes on.
The belt will try to move to the highest point of the roller as they go round. The strength of the belt will only allow it to go so far, as the belt wears slightly or stretches over time it will still be able to keep the same tension as it will ride higher.
The black ferrite rod with the copper wire coils wrapped around is the Mw and Lw Ariel.
Nice work Vince.
Now that is my style of board to work on. I was trying to see how they are driving those 4-ohm speakers which look to be the 20 pin IC under the heatsink. Great job Vince and keep them coming!
Awesome work as usual. It’s always a delight to watch you fix things! Makes me enjoy my coffee breaks even more.
You were fortunate in that it came apart so easily. Bang & Olufsen were renowned for making some of their products very difficult to get into. It wasn't unusual for screws to be hidden under sections of 'stick on' costmetics' etc. It was partly to disuade engineers/technicians who weren't B&O's agents from doing repairs.
Funny you should say that, because I'm trying to remove the back panel on mine right now, and it will not come apart.
I've removed the 3 screws, but something is attached at the top, where the aerial end clips into place. It feels like a screw but I can't see anything there. Pulling at it bends the back panel, which will break if I lever it.
All i want to do is see if the belt is gone because the take up reel isn't turning.
And I can't find anywhere that sells belts for this model either :(((
That bit of tape being removed was SO satisfying 😌
Another nice fix Vince! B&O were nice machines but expensive like Bose! I enjoyed this as well!
I'd love to see you rocking up at a building site with this on your shoulder, Vince! 😂 What a lovely looking item though, those Danes sure know how to create a beautiful design.
🤣🤣With a lob sided limp because of the weight of it. I don't know how they make there products so heavy!! You're right though Steve, when you think about the other Boomboxes from that era this one still looks good today 👍
@@Mymatevince I think it was the speakers. they are more efficient? when they have larger metal pieces?
@@Mymatevince The black pinch roller looks like it`s gone egg shape on the tape deck... ??? i had the same problem on a Phillips unit when i was younger :):)
@Lassi Kinnunen 81 luckily, they still sell and make TV's, speakers and headphones worth buying. Those laptop gimmicks is just selling points for the laptop manufacturers sadly
That ferrite rod with coils around it is an AM tuner antenna.
thanks grandad
@@Rose.Of.Hizaki Referring to someone as a granddad can cause offense, especially if the person on the receiving end is far from the truth.
@@AppleOranges12 thanks grandma
@@Rose.Of.Hizaki As someone who mods and tinkers with old electronics, this hobby and knowledge of older technology don’t automatically turn me into geriatric. I very much enjoy my youth than you very much.
someone doesnt get that i meant it more out of respect for their knowledge rather than as a derogatory term. Grandfathers tend to be a great wealth of knowledge.
Have to agree with 'hifismiffy'! I learned to fix these as an apprentice, and I always found them scary! Jammed tape would have caused the roller to oscillate causing the tape to ride up the pinch roller. Great fix,. Cheers
Nice one Vince; wonderful job on getting this B & O boombox working again.
You could do your workout by trying to lift it.
No one is going to nick it as it is too heavy to do so.
What a pleasing fix. Congratulations. And thanks for the joy of watching you make something right....
Man, what a steal! I go the Goodwill and you be surprised what you can find. I found great Marantz receiver that only needed a filter capacitor! It was listed for $15. fixed for it $5!
Nice fix Vince, would never have expected some chewed up tape on the pinch roller to screw the tape up
For a boombox that old it's actually really good quality and the sound is really good and loud it's really an impressive thing to see in 2021.
I love these retro fixes! Makes me happy when something old works like it's new again.
Awesome! Love boomboxes! I have a few myself.. thanks for sharing
While looking at it disassembled, it's amazing to think about the amount of assembly effort that would have gone in to this product. Those trimmers, coils would all have to be tuned manually, never mind all the hand soldering.
I had a similar problem turn out to be a flat spot on the pinch wheel which on my first check I diagnosed a weak belt change that but it was the pinch wheel. Hope this may help with other tape decks. Thank for the videos.
Love those real and serious restorations, where there's no layer of brown mud put on the gear by purpose to attract more viewers....
Great video... Thanks. When you say at the end of the video that "you can still hear the tape" ... that's called 'tape print through' ... the tapes fault; not the unit. Well done & thanks again for this and ALL your videos.
Recognized the tape mechanism, I have a Silver STW66L with exactly the same mechanism (two of them, it is a double deck), only the motor is mounted downside up (or upside down). Pretty good and stable mechanisms. I had replaced the belt (at least clean it) and lubricate the mechanism a little (behind capstan plate). Can hear some wow. But okay, it was an easy fix, for sure. Nice unit and nice construction.
As someone who also knows a dside from an eside it's been great watching your journey with this channel...
*Brillant* that wheel on the motor will not allow the belt from falling off.
Watching you play with all the rollers and buttons was very amusing hahaha!
Also, I never could of thought that 80’s technology could be sooo complicated and tricky!
good one!!! back in the day B&O was THE name for high end stereo and i wanted so badly 🙂
It looks very heavy but I love the black. And you fixed it. Very nice!
Nice fix :) The cracked flywheel brought in my mind a thing called diecast rot, if it's diecast metal? One of my model car suffered from it, altough this radio is much older. My modelcar was destroyed in less than ten years.
Zinc pest is another name for the phenomena.
Not sure though if the cracks at the flywheel are related to this or not.
I learned something today. I had heard of Tin Pest, but not Zinc Pest. That sent me down a rabbit-hole of learning which is always enjoyable to me.
@@TechGorilla1987 TH-cam & Internet at it's best, learning new things :) Have learned a lot from TH-cam videos myself, for example from MyMateVince videos ;)
That was my immediate thought. I collect toy steam engines of varying ages and zinc rot is one of the things to look out for on the cast parts (usually engine frames and flywheels coincidentally) particularly on older engines. It is nasty business especially when it's a structural part. It can write an engine off.
@@SimonNemeth Paya wheels were particularly bad, although I have seen an 00 locomotive where the frame bent like a Banana! The problem is caused by impurities in the Zinc and there is noting that can be done about it apart from the manufacturers using better quality Zinc.
@@MrDuncl It tends to be lead impurities and it primarily happens in cast zinc made at a certain time. It doesn't tend to be an issue with modern casting.
The cassette mechanism remembers me of my childhood. What a beautiful item, a real gem 😍
Am I'm allowed to tell you your better than ever? This was a fine radio/boombox if it wasn't for the cover missing it looks fairly mint!
Thank you!
🤣🤣 You are Anders👍 It is in very good condition considering the age.
Unfortunately this was the start of a slippery slope for B&O , basically charging top money for fancy outer casing and design but fitting other manufacturers inners , making a lot of their stuff unreliable , like the VCRs which if I remember correctly where Hitachi inners. I remember taking the back off a 21"MX4000 TV (£1500) in the 90s only to be confronted with a £300 Thompson chassis !!!
Much better when they made All their own stuff .
Great videos 👍👍
Great, Another enjoyable video. I'm always amazed at why some hi fi equipment is so heavy.
Great video! I always fancied one of these back in the day but a lot of money for what was essentially a quite basic Sanyo radio recorder wearing a sharp B&O designer suit. No Dolby or auto reverse were serious omissions at this price point but they did look wonderful! Ironically, at about the same time (1985-1987) humble Ferguson was offering decent all-in-one compact hi-fi systems made in Japan by Sony no less for about the same price as this B&O. And you got a choice of record deck or CD player thrown in!
4:50 I have to admit that I'm surprised that removing the tape from around the pinch roller actually fixed this problem, since I didn't hear any wow&flutter, only volume changes. I was wondering if the supply reel was getting ahead of the capstan, causing the tape to loose contact with the heads, and that might still have been the cause of the volume changes, but I'm mystified that there were not also severe pitch changes. Anyway, I picked up a 120V, no-LW version of this model at a pawn shop for $10 and the last time I tried it, one speaker had cut out. I've been dreading taking it apart and this video confirmed all of my apprehensions about its serviceability, but thanks for the tour of its innards; at least now I know what I'm up against. Though this B&O model seems to have a few "audiophile" features lacking in most '80s boomboxes, and very smooth sound, the single tone control (despite B&O's fancy name for it) would be a major disappointment in this price range; the model is gimmicky and not very practical as a portable. Ironically, it's so heavy that I fear that some of the flimsier plastic assemblies would be totally destroyed if it ever took a fall. It's a nice little piece of history, but I'm glad I didn't pay the original $300 price.
i recently got one of these (for a lot more than $10!!!) and I'm experiencing a similar problem - the sound balance might be normal for a few seconds but will roll to either the left or right speaker only. If I hit the 'AM' button, it seems to correct the wiring and be balanced again, but only for a moment. Very interested if you tried to fix yours and how it went?!
4:42 dat sounds like a sick lo-fi beat ngl
You got a nice collection of B&O now, quality never gets old
omg vince i got one for you you gonna love it been working on it for 6years its beomaster 1700 the ultimate challenge to choose the radio freq you need to push a button that then activates a actual gearshifterbox like a car connected to a threadmill :)
That mic quality was better than expected. Could even get that cover 3D printed if you really wanted to.
I played around with one of those boxes back in the 80's when they first came out at a high-end electronics shop where I would purchase TEAC reel to reel cassettes tapes. I walked away unimpressed by it's sound and features . You could purchase a better sounding portable , that was bigger and cheaper . Nevertheless I'm glad to see some of them are still around today.
I've seen capstan flywheels like that totally disintegrate. Something to do with the alloy (pot metal aka 'monkey metal'), and the dreaded 'zinc pest' or zinc rot. Dampness and high humidity can often trigger it..
I have seen other zinc things develop hairline cracks as they age. Guessing it is atmospheric
@@home-space Yes I've seen old dinky toys become brittle and start falling to bits in a similar fashion. Such a shame when it's something collectable..
The metal alloys age at different rates so the zinc and magnesium separate and it disintegrates. A lot of old razors were made of pot metal.
I suspect you could have taken that tape wrapped around the pinch roller out without taking the machine apart, but that wouldn't have made a very interesting video! Getting that for 40 quid was a bargain. Those B&O machines were made to last, unlike the cheap Chinese ones that are made nowadays.
Anything of that vintage was made to last. These days planned obselecence is the deal of the day - usually a product dies a day out of warranty.
That was a great fix Vince. I come across many similar issues with my repairs on cassette based multitrack recorders. Keep up the great work.
Absolutely brilliant!, wish you could find that missing panel though to complete it!
B&O stuff is way ahead of it’s time style/design-wise.
Just to let you know your got me hooked on fixing B&O.
Outstanding thank you for repairing this BoomBox Sir! It's greatly appreciated.
Gotta love how B&O put so much thought into the repairability of their products.
My thought is that the bit of jammed tape would spool out as far as the play head and shielding the played tape before getting wound back up and repeating the process.
If you use an fm transmitter you could broadcast public domain music to test radios and not have to worry about copyright.
and also maybe he can ask Techmoan for some high quality recorded tape with royalty free music
You still have to worry about copyright. TH-cam punishes the creator for copyright claims regardless of their validity and entities constantly make claims against public domain works. Try uploading some public domain content if you don't believe it.
23:50 I believe the brown head is the erase head, which carries the bias frequency; on cheaper decks, it's sometimes just a permanent magnet. Sometimes the play and record heads are one in the same; I think there are also decks where the record head is separate, but in the same case as the play head.
The cheaper decks are much simpler in design but just as painful to service when they fail due to the flimsy parts their mechanisms use. Especially models which used spring-loaded idler assemblies - these had a tendency to fall apart or break without warning, leaving the user without FF, REW or PLAY function (because the idler was responsible for tape take-up and engaged the reel spindles in front when a key was pressed). I've replaced countless idlers in several budget boomboxes because they were too small to fix and those who owned them at the time wanted reliability. Great when they work which is not often, and some of them aren't very good to record on. Quality is poor. I now refuse to own or service these types of decks because of the above-mentioned.
The drive roller on the motor is crowned. It's a well known technique for keep flat belts tracking true. I used to use the principal on conveyor runs. It does look odd when you first see it.
Removing the tape from the roller put me in mind of Star Trek II: The Wrath of Khan. I expected you to be like him extracting the grubs from the creature, "Not all at once. Not instantly, to be sure."
Your video was fantastic mate I absolutely loved it you did a fantastic job at taking it apart and fixing it I’m really proud of you mate well done 👍😊 I would love more of your trying to fix videos
Love the old school stuff you do/fix up it’s great 👍
Reminds me of when I stole my sisters nail varnish remover to clean heads ( not the best but did the job)😅 back in the day… nice fix 👍
There seemed to be a lot of residual dust in there. You may want to invest in a small air compressor to blow out all that dust. One of my best investments for repair/refurbish jobs. Love the trying to fix videos, buddy.
Haynes Manuals are... Special sometimes...
For a 1994 Subaru Impreza, the instructions were as such.
Removal of starter.
1) Remove the 3 bolts.
2) Installation is the reverse of removal.
No pictures, no nothing. Just those two helpful instructions
Valentines Day and love is in the air....Vince and a B&O product 😍
top left item wound in copper is the Ferrite Aeriel for AM reception
If you go in another audio device I would suggest putting a high pass filter on the speakers to protect them from the lowest frequencies below the fs of the drivers and increase clarity and power handling by blocking what they will not play well anyhow. Great video. Thank you.
It’s a known fact that vintage B&O always required patience and a knack to assemble it. Hence why so many “repairer’s” wanted nothing to do with repairing the brand, it takes time to get to know the products from Denmark , try fitting the radio tuner pcb on beocenter 2200 2100 4000 thats fun if you’ve never done one before.
Cheers Vince, always a cracking and enjoyable fixing video!
14:33 That's the AM/LW antenna. Those became popular in the mid 1950s, before that, there was usually a big, open coil of wire around the perimeter of the back of the set.
No doubt someone else will have commented the same, but the coils you were wary of disturbing with the fine wires coming off are the MW and LW antennae.
The main head on this device is combo rec/play the other one is for Erasing only, and its Energized on rec only ;)
So I could re record a tape if I wanted to with this unit?
@@simonloreykjrsgaard2619 Yes, wherever you find an erasing head in a tape player - it is re-recorder.
From my perspective Vince you can see the rubber roller bouncing up and down on the silver capstan which would account for increased wow and flutter and not in the radio side so something is caught in the capstan and roller Great video as usual and you can see where the weight comes from not those tiny tinny speakers but proper speakers with large magnets
For the radio testing, why not get a small radio emitter like you can get for your car that work on 12V.
You can put a USB stick into them and in a 2m radius or so one can receive their radio signal on other devices.
Means you need a 12V adapter too, but at least you get a good signal AND you do not need to worry about copyrighted material being played :)
They come as cheap as 13 GBP on amazon.
I have several of those small FM transmitters & by experimenting with connecting various external Aerials to the right point, it's surprising how far the signal will travel, it will easily cover my whole house, garden & beyond! I have tried connecting a Belkin model to my rooftop FM antenna & could receive the signal several streets away!
(Make sure to set the transmitter output frequency to one well away from local broadcast stations, to prevent annoying your neighbours radio listening!)
Awesome =D Don't be affraid to press that cotton bud onto the read / write and erase heads btw! Should get a squeakey sound as you move the cotton bud ;)
🤣🤣 You could tell I was nervously doing it. Hope you're keeping well Chris 👍
Nice find, thats an awesome little radio
thanks for the info I was able to repair my radio with ease because of this very informative video .... Thanks !!
It sounds like the head may need a slight alignment, but it is fantastic to see you get this going.
The pinch roller is critical to tape speed and tension which obviously is critical to how the tape runs across the head.
Your troubleshooting techniques could put some professionals to shame.
B&O always made very nice products!
Another success, both the repair and the video.
Just an idea, but if you're worried about copyright and/or have bad FM signal in your house, you could get one of those little FM transmitters used to listen to ipods/phones/etc on car radios that don't have an aux-in/bluetooth. That way you could play one of your videos or other non-copyrighted content for testing FM radio.
Hi Vince, I think that pulley is tapered so it keeps it running true. You see that on conveyor belts too....
Hi, the brown head in cassete department is for deletion of track and silver head have 4 cables 2 of them are for reading from the cassette and other two are for recording
I love your trying to fix videos and especially the long videos, Longer the better I say ☺ 😊
14:37 - that's a ferrite antenna and it is used for MW and LW reception.
Excellent fix for a cool looking device.
Don’t know about portable, but nice fix. And it’s a very stylish radio. 👍