I picked up this Nak at Arc, it was showing Err on the counter if any butoon was pressed. I opened it up and so capstan motor spinned just fine, but cam motor and pulley weren't. I followed your steps and cleaned up camshaft contacts, and gave pulley motor a bit of exercise and everything works now. Another DR3 is saved. Thanks!
@quanchyplimp
Жыл бұрын
You have a very admirable set of skills sir, it's a pleasure to watch you work!
@montynorth3009
Жыл бұрын
I had a similar problem with my Yamaha KX-393, where the overhead leaf switches contacted by the top of the cassette needed cleaning. A good lesson.
@rubikcuber1492
Жыл бұрын
I've had one of these decks for a couple of years. Never had this issue but now I know the fix if I ever experience it. Thank you! I can't recommend the DR-3 enough. Since it's only a two-head it is often great value. Frequency response is great, w&f is so minimal you'd think it was dual capstan. It's great. Obviously a wee bit more fiddly to calibrate this, both internally and when you're using the bias tune knob, but well worth it.
@elektrokinesis4150
Жыл бұрын
I love how easy to work on that deck is
@12voltvids
Жыл бұрын
It's a pretty basic design
@taunusv4power
Жыл бұрын
Man your music selection is just perfect. I wish i had the same endless amount of great jazz instrumental music like you do
@12voltvids
Жыл бұрын
You can too that library of musicbakery royalty free content cost about 2000 when i bought it in the early 2000s
@SPINNINGMYWHEELS777
Жыл бұрын
@@12voltvids 'endless amount' 😅
@12voltvids
Жыл бұрын
@@SPINNINGMYWHEELS777 Endless amount? No purchase the tracks you want and use them forever. It's just that with my production company my business associate started buying tons of CDs at about 150 bucks a pop. I have 12 CDs. This was back in the day when we were doing a bunch of corporate videos and we got nailed once because the client brought their own music in wanting to use a specific song which we used. After the work was done and the production run was complete and hundreds of copies of this video were made someone in legal realize that there was no license for the music. We've done hundreds of videos just using regular off the shelf music nobody gave it a second thought. It wasn't until we had a large client that had their own legal department and when they heard it they asked to see the license. So my former business partner went shopping for music that could be used and found Jack waldemere's site and made an impulse buy. from that point forward we use music bakery content for all of our commercial productions. My business partner passed away in 2006 from cancer. Since I was the editor all of the music was on my computer at this point so naturally ended up in my possession. But a site license is still valid as my company still in existence even though I don't do much in corporate videos these days it's all archiving work and KZitem content creation.
@DeePaignall
Жыл бұрын
@@12voltvids Fantastic story thank you (and for showing us stuff)
@SPINNINGMYWHEELS777
Жыл бұрын
@@12voltvids yeah I was humored by the original commenter saying they 'wish they had the endless amount like you do'. ;) I have stacks of royalty free music on CD, tape and Vinyl. I'm no stranger to it.. just found his comment funny.
@jonfowler474
5 ай бұрын
I had this problem, I followed your guidance & it's now fixed - thanks so much as I was ready to replace the motor !
@focus82grothm.84
Жыл бұрын
Excellent professional work done, a joy to see. Great video 😊👍
@Johnathan_Waters
Жыл бұрын
I have several Nakamichi decks. i just love them!
@bobsoft
Жыл бұрын
I have several of them sitting in their factory boxes. I haven't used them in 25 years. Also have a couple of their car amps from the 90's that I want to get in my car this year.
@Johnathan_Waters
Жыл бұрын
@@bobsoft Ive had the "mobile" equipment in my cars as well... its great stuff!
@somebodyx
Жыл бұрын
Where the HF has gone?
@marktuik1773
Жыл бұрын
You Sir....are the BEST!!!! THANK YOU, THANK YOU!!!!
@TinkerbatTech
Жыл бұрын
Had a similar era Nac, (CR-5?) can't remember exactly. 3 head unit. Was doing much the same. Finally traced it down to the optical tape reel movement sensor. Used a black/silver alternating pattern and a reflective sensor. Let's just say that a previous owner seemed to have been a heavy smoker. The build-up on the disc was so bad that it was black/brown instead of black/silver. A bit of alcohol and a couple of (nasty!) Q-tips later, and it started working great! The kind of thing you'd never expect to fail...:) Those Nacs and my Akai 3-head decks sure made great tapes... That machine is pretty cherry, too. Enjoy the vids, keep on wrenching. Thanks.. Stu
@12voltvids
Жыл бұрын
Just think of what a smokers lungs look like.
@kutzaudiolive979
Жыл бұрын
Did the same procedure works like a charm......thank you sir 🙂
@robertdavis5714
Жыл бұрын
Appreciate the education on those switches. Build quality looks pretty good, even after the Dragon.
@12voltvids
Жыл бұрын
Fragon was a joke. Hated those decks, especially when the little plastic gears that adjusted the head azimuth broke. I remember a guy walking away from one back in the 90's. The gears had broken and Nakamichi had gone tits up. No parts. The shop threw it out. It was trashed on a Saturday when I wasn't there. I found out about it Monday morning. Went to the dumpster looking for it but it was all smashed with a hammer. The shop employed high school kids to help out. Stuff that was dumped had normally just been left out back or put in the dumpster (this was before recycling became a thing) Anyway many TVs and things were just set out back when a customer didn't want to repair for whatever reason. One day a customer bought a new set and had the delivery guys bring back the old set. As it was a very old set the shop decided not to even look at it and put it out back (not my decision on trade in because I was paid only for customers repairs, not trade in sets) It went directly to the loading dock out back awaiting disposal. Well people used to pick up those sets. Many times they were sets that I had condemned due to bad CRT but I guess this one was just a fuse. Anyway some guy that was picking the old ones up came in bragging about this set he picked up that we "couldn't fix" and then barging about other old sets that he picked up and was able to make them work by putting a tube brighter or using a rejuvenation tester. Anyway from that day forward, every TV that was put out back had the CRT smashed so nobody could try to fix it. The kids decided that everything going out back would be totally smashed to pieced and they slayed a dragon. I just about cried. I would have taken it as just a display piece or glued the head in place and made it functional but not after it was in pieces.
@lachlanlau
Жыл бұрын
@@12voltvids why not let people pick up broken stuff? Good for them if they find it right? After all reuse and repair is better than recycle..
@12voltvids
Жыл бұрын
@@lachlanlau i didn't care but the owner did because he wanted to sell new. That was the main reason i left. People would being stuff in and they would bring it to the back on Saturday when i wasn't there. There would be a note saying do not fix. Monday mid morning a sales person would call the customer and tell them that the tech determined it was not worth fixing and sell them new. Meanwhile i am not making any money if I am not fixing stuff. The owner decided that is it was older than 5 years it was automatically condemned and they tried to sell new. That among other reasons is why i quit the business. The shop lasted another 9 years after i left and then went tits up. The guy that had owned it went to work at another stereo shop. Cancer got that sob in the end.
@v12alpine
Жыл бұрын
FYI did A/B comparison and the recording sounded quite dull compared to the original especially the left channel.
@12voltvids
Жыл бұрын
Comparison to what? The sound recorded with the microphone?
@v12alpine
Жыл бұрын
@@12voltvids didn't realize the clip during recording was the microphone so not a fair comparison then, but the high end was much clearer. The recording seemed muffled.
@12voltvids
Жыл бұрын
@@v12alpineTweeter in the right speaker is dead on the shop speakers. Also the trebble is cranked full on my test amp to compensate for the lack of a functioning tweeter on the right speaker. The recording from the tape is direct, and Dolby C was used, and we all know what dolby does to sound quality. It gets rid of noise but you definitely hear it working.
@v12alpine
Жыл бұрын
@@12voltvids yea dolby C tends to kill the dynamics and high end for anything other than LOUD recordings e/g techno and hip hop.
@12voltvids
Жыл бұрын
@@v12alpine i dislike Dolby. Dbx is what I used to use when i used cassettes. Even had a car stereo with dbx. Played it so much I wore the head out. Then I went DAT
@vbathory3757
Жыл бұрын
I have a DR-10 that has the same symptoms. Now I know how to fix it 😊 Thank You Sir 👍🏻
@abdurrahman4714
5 ай бұрын
Thanks a lot, solve the same problem after watching this video. I am really thankful to you❤
@12voltvids
5 ай бұрын
Happy to help
@AzizYousefi
Жыл бұрын
Thank you for this demonstration to show very easy and simple fix. David, if you have a video to demonstrate how to fix auto‐stop, will be really appreciated it. I have seen you worked on some previously but somehow I can't find it now. Thanks again.
@sexytasmin
4 ай бұрын
My DR3 is over 30 years old is in mint condition and is totally original including the belt! Sounds fantastic.
@dorian-gray
Жыл бұрын
Great and very informative video. Thank you!
@Jammerk40
Жыл бұрын
Nice clean deck! It's always nice when you get one that has no scratches on it meaning someone was careful and treated it with care! Boy I've seen some that looked like they went through a sand blasting machine! LOL
@12voltvids
Жыл бұрын
It's all that sent me this deck just picked it up in a second hand store. I would say that he found himself a nice machine in good condition. I have no idea what he paid for it but it certainly was one that was worthy of a repair. There are many things that aren't worth fixing but some of these nice tape decks are certainly worth it.
@davidbutler8096
Жыл бұрын
Paper functioning as emory cloth. Of course, it still gets blown out and the tape path gets cleaned...right? Perhaps a speed check, as well...right? The DR3 was the beginning of the end of Nakamichi.
@12voltvids
Жыл бұрын
I was never really a huge fan and when i became a warranty servicer i became even less of a fan because i had to do their warranty work. The good thing was they paid whatever i billed them though so i did allright with nakamichi repairs but i got to see how many were built. Cheap inside.
@botelhda
Жыл бұрын
You should always clean and align the cassette detection switch. In my experience the detection switch can get bent over time and when you have a tape in there, the switch that is normally open may become closed and cause the mechanism to go into stop mode. An easy way to test is by putting in a tape and engaging the play mode. Try pushing on the cassette deck holder or pulling on it slightly. If the deck stops, it's because the switch made contact.
@12voltvids
Жыл бұрын
Yup did it.You can see the cleaner on the contacts. Didn't show the cleaning as it was hard to get on camera.
@botelhda
Жыл бұрын
@@12voltvids Got it! I was listening to the video and it seemed that you were not too worried about it. :D I've had it trip me more than once...as that leaf switch does tend to get deformed over time. :)
@MrChrisRP
Жыл бұрын
In physics, the sound produced from different pitches simultaneously, is called "beats." The waverings. Not to be confused with Dr. Dre. heh
@12voltvids
Жыл бұрын
That right the tones beat with each other but I this case I had them on 2 speakers so it was causing phase shifts between the channels.
@user-of6hx2sx3p
Жыл бұрын
Thank you very much for this excellent Video. Just a few days ago I also got the DR-3 and after listening for a while this happened. Not as frequently but did not like it. I saw some workshop photos of another guy in the UK who shared a photo of cleaning the ‘switches’. Being in healthcare I’m not so technically inclined but your video showed me how it’s done. Mine were not as dirty as the ones in your video but there was some gunk to be removed. Testing it now to see if it worked. What are you using to clean it? I just had 70% alcohol on hand so used that.
@12voltvids
Жыл бұрын
I used contact cleaner
@richw.9746
Жыл бұрын
I've got a Sony ES deck that apparently runs at 4.75cm/s, exactly. Technics "quartz" decks run at 1 7/8inch/s exactly, as the 'compact cassette' specifies :)
@janchristensen9858
Жыл бұрын
Dave! Speed calibration should be with 3000Hz or 3150Hz. 440Hz is not good enough. Azimuth you should also use 10KHz... This is also written in all service manual for tape decks... And yes it make a huge difference! No mater what you say or not.
@12voltvids
Жыл бұрын
440 is fine. when using a tuner it will detect even the slightest mistuning. I use 440 as a guitar tuner is cheap and accurate and to demonstrate that this is all anyone needs. Not everyone has access to a frequency counter. I could put my 3khz or 7khz tapes on and they would be dead on. 7khz is a good test tape for azimuth, but you shouldn't be fuxing around with the azimuth screw anyway once it is factory sealed. Te only time I have seen azimuth off is when people have messed with it. Pinch rollers worn on one side can use the tape to be pulled through at an angle and mimic an azimuth error, but it isn't. Only when heads are replaced doies it ever need to be done, unless physical damage has occurred.
@crashbandicoot4everr
Жыл бұрын
@@12voltvids You can use the WFGUI program to measure the speed and wow & flutter. Works just fine.
@EastAngliaUK
Жыл бұрын
has good play back audio
@Mister-Salieri
Жыл бұрын
Sankyo mechanism. With a little work on it can get back to life easily.
@agushariyanto8372
Жыл бұрын
Thank you for the info because I have the same problem on Nakamichi DR3 😃
@deputy3690
9 ай бұрын
Great video. Do you repair Nakamichi decks? I have a cassette deck 2 that does the same thing. Someone told me the oxidized motors need to be replaced. Any thoughts on that?
@12voltvids
9 ай бұрын
I fixed a few nakamichi problem is finding parts for them these days because they've been out of business for 30 odd years
@chakravarthiamithraghav8008
6 ай бұрын
Superbly done. I have this lovely machine too. Off late good cassettes played on it it is sounding muddy and dull. I presume it needs a head change. What head does it accept? Please help me out with this information.
@12voltvids
6 ай бұрын
No idea sorry
@sand0077
Жыл бұрын
Good info to know, I've a few Nakamichi decks that need looking at 👍
@gregkendall2019
Жыл бұрын
Thanks @12voltvids great video, can you please tell me the name of the cool track you recorded for testing? Cheers.
@salwilk558
Жыл бұрын
What a cool video , always enjoy tape videos 👍
@bryans8895
Жыл бұрын
Great video as always, ‘gotta love those heritage scissors, as long as a finger accidentally doesn’t come off. They cut through anything! What’ll it take to have you go over a HK TD4200?
@12voltvids
Жыл бұрын
Yes I know. I have felt the pain.
@sincerogasparino3713
Ай бұрын
Is recommendable the Nakamichi B 100??
@ksrele
Жыл бұрын
I still love listen to the tapes I recorder long time ago. I have Yamaha KX-390 and speed is not correct :( How to calibrate it without tone tape? Do you have any advice? That would be a good video you explaining how to set correct speed without tone tape.
@12voltvids
Жыл бұрын
Well if you have good pitch you can do it by ear. Another way would be to play the same song on a streaming service to note the key the music is in and then match the speed using your ears. Being a musician I have very good pitch. I wouldn't say perfect pitch but it is close. I need a reference and the. I can tell if something is sharp or flat. People with perfect pitch don't need a reference.
@MrMotownjoe
Жыл бұрын
just fixed one stopping... not switches, not motors, turns out reel sensor bad
@MrMotownjoe
Жыл бұрын
reel motor common stop problem
@koprcord5338
Жыл бұрын
Off topic but I have a nakamichi 580 which sounded fantastic but wasn't used for about 6 months and when I used it again the right channel sounds normal but the left is missing the highs and mids. Connections are good and my onkyo deck sounds fine. Curious since you were an authorized servicer of naks back in the day if you have any tips or pointers to investigate.
@darinb.3273
Жыл бұрын
I'd say insure the head(s) are clean if it is a 3 head deck insure the playback head isn't magnetized. If it has a record playback switch try giving it a few shots of contact cleaner and cycling it several times. Insure it isn't a bad audio cable by using the headphone jack and see if the levels are normal. If it is still missing full audio then it is possible that you've got a problem in the electronics somewhere, possibly some bad capacitor(s) or perhaps one or more transistors. The best place to start is basic cleaning and simple checks of possible causes it appears the head(s) has some build up on it, it doesn't take much at all to cause a loss of the highs and reduce the mids.
@koprcord5338
Жыл бұрын
@@darinb.3273 Thank you for the providing some ideas. It is a 2 head deck with the notorious crystalloy nakamichi superhead. For sure the output on headphone jack has same issue. I've heard that these can have caps go bad so will open up and visually inspect and locate and clean the record/playback switch which I believe sits under the circuit board. I did clean the head first thing. Thank you.
@darinb.3273
Жыл бұрын
@@koprcord5338 Your welcome best of luck and perhaps you'll get lucky and it is just a dirty rec/play switch. It would be a simple fix for sure 👌👍😄. I seem to remember some of the Naks had orange cap disease, which of course means the orange epoxy caps went bad. Hopefully this was overcome in your model but I don't know which models had the orange cap failures, simple enough to do a quick search to find out. Anyway best of luck to you. I forgot to mention about tape tracking issues. That's quick easy check too, crinkling or other signs of damage? If the tape head adjustment screw is still sealed don't mess with it check the tape path it may be a dirty pinch roller causing the tape to off track just enough to cause the loss. Does the same tape sound good in another deck? All of these are trouble shooting steps so forgive me if you've checked or done these already. Check the entire tape path for something that could cause a loss of contact or a loss of proper tracking. Many times a dirty rec/play switch will cause either the left or right channel to peg the level meter (digital, LED or vacuum florescent) or analog, (sweeping needle).
@koprcord5338
Жыл бұрын
@@darinb.3273 first off no issues with tape damage, but I will re clean the whole tape path again. I'll need to open this deck up and see if it has the orange caps or not but I had heard of that issue. I know the seals have been broken as it was serviced before I bought it about a year ago from a local shop. Of course it was only guaranteed for two weeks and worked flawlessly until it sat idle for those 6 months. Really do appreciate you taking your time as to a degree I like to try and fix things on my own with advice and tips from individuals such as youself as repair cost have become so expensive. Thank you again.
@darinb.3273
Жыл бұрын
@@koprcord5338 Of course I hope I was able to guide you well enough that you can fix the issue(s). The seal I was referring to was the azimuth adjustment screw on the rec/play head itself. As far as security seal(s) for the cabinet I don't know of many companies that used something like that on a cassette deck, not saying that no company ever did, just saying I'm not aware of any LOL. I haven't ever seen a cassette machine shoe box to expensive professional cassette deck that didn't put a dab of glue on the azimuth screw to keep it from shifting/turning after it's alignment done at the factory. That typically don't need to be adjusted provided the machine hasn't been dropped or the head replaced.
@VA7LFD
Жыл бұрын
Wow sounds nice!
@rooseveltmcmillan7257
5 ай бұрын
I love jazz and there's some nice sounding music. and music i like learning to while i'm driving can i pleasure have the name of the song and the artist. And i like tape decks to record my music on. I have a technics RS TR170 Pioneer CT-W 770 and Jvc TD-W330 Sanyo RD S25 I like watching your videos.
@12voltvids
5 ай бұрын
The track is Tasty Jazz composer Jack waldenmaier website musicbakery.com.
@zulumax1
Жыл бұрын
On a Nakamichi Dragon, what is the trick to removing those retaining clips to get the direct drive motor servo feedback coils off? What a pain those are to remove and keep them from flying across the room. Worse than a Jesus clip. Special tool? Doing a Pioneer CT-F1250 next, should be much easier, we will see.
@SPINNINGMYWHEELS777
Жыл бұрын
@6:00 - it was a bit off frame..but you put it 'under' or between the leaf switch...correct? Do most Tape decks have those switches.. or is that just Nak? I know of the common ones that indicate tape type ect along the top. Nice dental pick.. it's more 'fine' than the one I have. Mine is like two ends of a hockey stick but angled into little blades .. one end a different vector blade than the other.. Yours rolls off into a point.. maybe my 'pick' is more of a scraper for teeth. It's a very often used tool though in the workbench. I use it to rough up the rubber parts / wheels in the mechanism.. removes that shiny plaque off rubber idlers / rollers.. just like plaque off teeth LOL
@12voltvids
Жыл бұрын
Yes between the contacts. I don't have a camera operator and can't see the monitor well as the camera obstructs it's view depending on where the jib arm is.
@SPINNINGMYWHEELS777
Жыл бұрын
@@12voltvids it's all good my friend.. was just verifying and not baggin on your camera work. I'm usually a one man band as well.
@lachlanlau
Жыл бұрын
Yessss tapeeeeee
@zx8401ztv
Жыл бұрын
I'm surprised that someone at the thrift store didn't scoop it up for themselves. Mucky contacts lol. In its day it would not have been cheap. They are known to be good machines but there is always a weak spot.
@12voltvids
Жыл бұрын
Well not everyone that works in thrift stores know what things are worth. I picked up a TC-D5 professional portable cassette recorder for 10.00
@anastasiaserwaczek204
5 ай бұрын
Glad you're not calling this deck a piece of crap-a-ruski..
@12voltvids
5 ай бұрын
Not everything is crap but allot is. Lol
@anastasiaserwaczek204
5 ай бұрын
@12voltvids Thank you for replying. Like your sense of humour. from 🇨🇦
@GadgetUK164
Жыл бұрын
Great job =D
@michaelfreiberg8057
Жыл бұрын
Had the same problem with a Sony
@kawmic7
Жыл бұрын
sadly the recording is missing a lot of topend!!
@12voltvids
Жыл бұрын
Nakamichi quality! Seriously though I did not set the bias for that tape, and that is a very old tape that I was using for testing. You notice that it says fubar on the tape. As for a reason because the tape is fubar. That tapes not going to sound good in anything that is put in.
@MrElectrowhiz
Жыл бұрын
What about the mode motor problems on the BX series decks that uses the Sankyo transport?
@12voltvids
Жыл бұрын
Yes have taken the motor apart to fix those.
@christophermarshall5765
Жыл бұрын
Nice fix.
@jasonthejawman5442
Жыл бұрын
No question contacts were dirty, this deck is direct drive
@12voltvids
Жыл бұрын
You sure about that.
@evilash570
Жыл бұрын
Nice fix!!!
@bennylixballtiti3606
Жыл бұрын
You did not show the cleaning process on the leaf switches, very dangerous with mains on and then handling the top cover, speed test should be at 3000 Hz, Wow n Flutter at 3150 Hz, Azimuth at 10.000 Hz and Level at 400 Hz. You dont have the manual? 🥶😮😰
@12voltvids
Жыл бұрын
I believe I did show the cleaning process of the leaf switches it was just a little bit out of frame as the camera shifted. I put the paper soaked and cleaner between this leaf switches and rub them back and forth. I didn't show the cleaning up the front switch because I didn't have a good camera shot of it. Don't you worry about Maine voltage let me deal with that, I'm on an isolation transformer and I do know what I'm doing I'm not sticking my hand anywhere near mains voltage. You can do the speed test at pretty much any frequency as long as you've got a good counter. I use 440 which is the musical note a because it allows the use of a cheap guitar tuner. Not everyone has access to an accurate counter. I know you can say you can use an app but I've tried some of those apps and they're not that accurate. Azimuth adjustments don't need to be made unless the head has been replaced or less someone else has been in there messing around and turning screws. Go check the manual. I don't bother checking while on flutter because I have no way of making adjustments that anyway, these old machines you're not getting parts for you're not getting pinch rollers you're not getting original belts. Biggest cause of flutter is either too much torque on the take up or pinch rollers being worn or a bad motor or too tight a belt. Again original service parts are available for these machines they weren't available in the 90s when the company went tits up. I use my ears to determine flutter I could care less about what an instrument says if I can hear it it's too high if I can't hear it I'm not concerned with it. numbers mean nothing and remember these machines are 40 years old they're not going to sound anywhere close to what they sounded like when they were new as are any of the other antique tape decks.
@edwilldaames9869
Жыл бұрын
Would like to have/own one
@tacofortgens3471
Жыл бұрын
High frequency is totally gone?
@12voltvids
Жыл бұрын
Dolby c at work. Also it's a very old very worn out tape. That's why it says FUBAR on it.
@technixbul
Жыл бұрын
Tape should move with 4.75cm per second
@ryanjofre
Жыл бұрын
Tapehead here The DR3 is nothing special for Nakamichi for my tastes, it’s descent. Some people would call it awesome. I’d definitely take my BX-150 or 480z over DR3. The peak level meters are nice on the DR3.
@12voltvids
Жыл бұрын
Personally I would take my v850 teac, rsm275 Technics and tdv1010 JVC over any nakamichi but that's just me.
@vintagecassettetapescollec5258
Жыл бұрын
What title this music
@12voltvids
Жыл бұрын
Tasty Jazz by Musicbakery.com
@bertjetolberg103
Жыл бұрын
Nice video Now fix your mic.
@Synthematix
Жыл бұрын
Dont know why people go crazy for nak decks, theyre not that good, Jvc made better decks
@12voltvids
Жыл бұрын
I agree. High end JVC blow the doors off nak. I have such a deck. TD V1010
@sexytasmin
4 ай бұрын
I don’t think so. The Nakamichi ZX-9 is a hundred times better than any JVC cassette deck!
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