Question about Nakamichi Audio Players & Recorders

3 Answers

I have a Nakamichi 700 Mk 1 cassette deck. Everything works fine apart from it chews tapes after about 10 minutes of playing. Afer a few minutes of playing, a loop of loose tape is generated between the capstans. This eventually wraps itself around the capstan. I have replaced both the centre belt & capstan belt but its made no difference. I understand that the machine is designed to maintain tension across the heads. This implies that the pulley/flywheel for capstan 'A' (part no. CA-5006) rotates faster than flywheel 'B'. I have measured the diameter of the pulley for both flywheels. Pulley 'A' is 47.20mm diameter and pulley 'B' is 47.00mm diameter. Therefore pulley 'B' will rotate faster than pulley 'A' and a loop of tape is bound to form between the capstans. Where am I going wrong? Can you help? Calum (UK)

Posted by on

  • Man-Pig Dec 11, 2008

    I have tried the switch on & off solution and it makes no difference. Please remember, being a 1974 product there are virually no silicon chips in the Nakamichi 700 cassette deck. Thanks.

  • Man-Pig Dec 11, 2008

    Hi PuerkoNess,



    The motor appears to be fine. There are no funny noises from the mechanism but both flywheels do appear to be running eccentrically by the tiniest amount - flywheel B being the worst. There is no discernable play when trying to wiggle flywheel A from side to side but there is the slightest amount of play between the capstan shaft and bearing on flywheel B. Is this likely to be the problem? If so, are new Capstan Flange Holder Assembies available (part # CA-5160)? Thanks.

×

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,239 Answers

Hi
This may be a reel sensor problem, or the rotation of one of the reels is stopping for some reason. Most of the time, these faults are mechanical. There can be worn belts, or drive wheels, or gears, and etc. Sometimes there are faults in the electronics where a sensor is not being read properly. 

The unit should be properly checked to evaluate the fault. 

Posted on Dec 11, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 275 Answers

First let me say Hi!! It's very nice to see you on this site Calum, I've seen your work and im a fan.
Now let's talk about your issue. It seems to me that you might have a problem with the motor that controlls the pulleys, it could be either one. Or you might have a loose pulley, again it could be A or B. Try to stare at them in action to see which one it is, and also listen for any strange sounds they might make when rotating.. Good luck!


-PuerKoness!

Posted on Dec 10, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 734 Answers

Hi,I would suggest you to first trying unplugging/ switching off your device for 5 minutes. This restores and refreshes the device. Go for it
Let me know if this works, if it doesn’t then I’ll provide some other alternative solution.
Thanks


Posted on Dec 10, 2008

  • futureloginn
    futureloginn Dec 11, 2008

    please go to the following link for service manual ---

    http://stonessoundstudio.com.au/stone/na...

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a Nakamichi Dragon Cassette Deck which recently during operation began emitting foul smelling smoke. I immediately turned it off. Could you tell me what has happened please. Thank you. Noela.


It's hard to know without putting on a bench and doing diagnostics or, maybe a tech with experience on these decks knows of common weaknesses.

You might seek help from folks at audiokarma.org.

Whatever happened it probably isn't good. Smoke is usually sign of a fairly significant electronic failure of some sort. The Dragon is arguably the holy grail of tape decks, so it would be worth fixing back to good health.

Mar 25, 2011 | Nakamichi Audio Players & Recorders

1 Answer

Forgot how to record (dual) tape to tape (been a while)......can not remember sequence of buttons to press or if i need to press buttons at the same time (i.e. Trying to record 1 cassette tape to another...


The left side is usually the playback deck and the right side is the record deck.put in a tape on the left side and push play.Then push the record button first and while holding it down ,the play button on the right side deck.One deck will not have record buttons on it,and that is the playback deck.

Jul 09, 2010 | Audio Players & Recorders

1 Answer

How to align head using the white plastic screw/gears


If it's a "Dragon" don't touch it! unless you've got alot of electronic test equipment to scope and meter the signal. You will cause damage to the unit. That particular model is the "only" good tape deck ever built and should be repaired by a pro. If it's any other model, it's basicly a Sony. The same rules do apply though, it's not a real good idea to guess with electronics. If it still plays well, just run a good "Tape Head" cleaning solution thru it. Generally tape heads don't get misaligned unless really jammed up. Most common problem is belts and gears. Best of luck

Jun 01, 2009 | Audio Players & Recorders

1 Answer

Nakamichi TA-4A receiver no sound


HAI,AMP WORKS FINE , CONNACT ANY OTHER TO AMP(CD,DVD,COMPUTER,MOBILE,TV) IN BACKSIDE INAUDIO OR PRE_AMP .THEN SELECT  PLAYER TO IN MODE YOU HAVE INSAERTED.THE SOUND IS OK

Jun 26, 2008 | Nakamichi AV-10 Receiver

1 Answer

Nakamichi 680zx, no Naka Auto Azmuth control ?, should happer on its own.


Dear all Hi! I am a electronics engineer and I have Nakamichi 680ZX cassette deck, its FL indicators are not functioning. I had checked for both channels output signals on switch PCB. I had received audio signal on pin # 5 of IC 904 (RC4560D) on Indicator PCB C ***'y, further no signal on pin # 7 but (-)10 Volts DC with respect to ground, of the same IC. I would appreciate if you could guide me to rectify the problem. Please also note that I have complete full service manual for Nakamichi 680ZX. Best Regards Muhammad Ali Shah
Senior Manager Service & Technical Support
AVS, Lahore Pakistan
Cell # 0300-8859964

Jun 24, 2008 | Nakamichi Audio Players & Recorders

1 Answer

Need pinch roller support pins for the Dragon cassette deck


Hi davejann

These guys can certainly help you with parts for older Nakamichi decks. They are in the UK, and have most parts for pre 1996 tape decks from the legendary makers. The synthesis chassis had dramas with pinch rollers siezing up from dried grease. I always used to strip and relube, and often replace the pinch roller/tape guide assly. Hit them up, if you have any dramas, get back to me here.

I am more than happy to answer any other questions you may have about it, just give me a hoy :) Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.

regards
robotek


May 27, 2008 | Nakamichi Audio Players & Recorders

1 Answer

Nakamichi BX2 will not take-up tape and play


This may be a reel sensor problem, or the rotation of one of the reels is stopping for some reason. Most of the time, these faults are mechanical. There can be worn belts, or drive wheels, or gears, and etc. Sometimes there are faults in the electronics where a sensor is not being read properly.

The unit should be properly checked to evaluate the fault.


Jerry G.

Apr 06, 2008 | Nakamichi AV-10 Receiver

1 Answer

Kenwood KX-W6080 dual stereo cassette tape deck


I have the same unit which had the same problem. It has to do with dirty contacts on each tape mechanism.

Remove the main cover and look down on each tape mechanism. You will see 4 contacts on each unit. These come in contact with the tape. Remove each unit by removing 4 holding screws.

You will now be able to spray some contact cleaner into the front of the plastic contact cover. I removed the covers on both of the second from the right contacts so that I could clean them with an abrasive. These are the main ones.

Put everything back the way it was and the tape deck should work great.

Mar 24, 2008 | Kenwood Audio Players & Recorders

1 Answer

Tape deck not working


Sounds like a motor problem. Try turning the motor by hand to see if it's bound up.

Geno

Feb 27, 2008 | Audio Players & Recorders

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

37 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nakamichi Audio Players & Recorders Experts

ELECTRICLAW

Level 1 Expert

4 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21990 Answers

Jim Goldsmith
Jim Goldsmith

Level 3 Expert

1869 Answers

Are you a Nakamichi Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...