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Nakamichi BX-125 Cassette Deck


The solution is not the belts but a motor that brings the tape mechanism up into the slot inside the tape.

It loses lubrication with time and I still am looking to fix it somehow.

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Check leaf switches and also, press play -- after a few minutes, feel motor(s) for heat build up. If it gets hot, either motor is bad of something is preventing it from rotating

Posted on Apr 25, 2008


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1 Answer

How do I fix this?

The mechanisms in both units need cleaning and lubrication. There is no simple answer than to clean out the old Lub and apply a new grease. Sometimes belts are also changed but belts by themselves will do little good.

Nov 08, 2015 | Sony Audio Players & Recorders

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Why is my tape deck running slow

Hi there! There are five general causes for cassette tape machines to run slow 1) motor faulty Check the motor governor electronics 2) Belts and rubbers worn or slipping 3) Lubrication of mechanism bushes 4) Cassettes binding in their cases this is quite common 5) If there is a solenoid or motor that do the work of the moving of capstan roller then there can be something wrong with that it can be binding on the sliding mechanism

Sep 16, 2014 | Audio Players & Recorders

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Mitsubishi hs m50v

I forget exactly how this goes but there are two posts on either side of the mechanism that read a light signal and a center pole that goes through the round hole on the cassette that gives the light signal (no tape-end of tape). Put a piece of tape on the two side posts and see if that changes anything. Be careful: the tape now knows where end of tape is - do not fast wind/rewind to the end! The loading motor may have failed or a rubber belt has slipped off or is too loose or broken.

Oct 20, 2013 | Mitsubishi HS-U445 VHS VCR

1 Answer

Can not open cassette player door

There are typically cam belts that become lose after some time that allow the deck to get stuck in a mode that locks the door closed such as play mode. Rotating the pulley that is driven by the motor will release the tape but that is just to release the tape- you need a new belt in the unit and some cleaning and lubrication to make it working again.

Oct 18, 2012 | Audio Players & Recorders

1 Answer

Tascam 122mkIII - Play, Pause, Rec LEDs flash - tape won't eject

Fear not, I am here.
I worked at Teac Factory Service and have been servicing decks for 40 plus years. I have a shop that is working on these now. I am in the Chicago area. The problem I think you are describing is that of the processor signalling that it can not control it's mechanism. This is due to a lose belt if it has one or a bad mechanism control motor that drives a gear to move the mechanism- head base and cam to get all the modes. I am not allowed to give you my contact info as that is not what they want but if you ask for it that might be different.
Have a look inside, see if there is a belt from a motor to a pulley that seems gummy or lose and then that is probably all you need for the immediate issue. Of course when I get units in fro repair I do all the stuff that is not talked about to make it last long and wear the longest. Changing a belt is not the only thing it needs and the calibration of the levels and bias change with wear and age.
If you are really in a rush just look up tape deck repair in Chicago and you will find me.

May 24, 2010 | Tascam 122MKIII Single Dual Cassette Deck

2 Answers

Tape deck is stuck

push the eject button at the same time get a nail file and insert it in the tape slot
on the right hand side of the deck
it may take three hands one to push eject one to push the eject mechanism inside the radio behind the tape
and one to help remove the tape
if that doesnt work....dont try forcing anything as the stereo WILL break..... take the stereo out of the car, so it is not connected to the electrics, then either, gently take it apart with a screwdriver

I would suspect the belts, look for any small motors and missing belts. You may be able to manualy turn a wheel or gear till it ejects.
if your not comfortable doing this urself with the above said porcedures... its better to take it to the dealer...
regards iversh
A very helpful rating is appreciated for answering Your Query

Aug 30, 2009 | Panasonic RX-ED707 Boombox

1 Answer

Sony deck will not drive tape

The belt is worn out already, so it need to be change. you can dissemble the deck then bring the tape mechanism to a shop and replace the belts.This will solve the problem.

Aug 24, 2009 | Audio Players & Recorders

1 Answer


As simple as cassette tapes are, their mechanisms can be quite complicated. This problem could be caused by more than one thing. The motor could have lost it's speed control circuit, there could be a worn/stretched belt which is slipping and not engaging the pinch roller completely, if it's a mechanical (not solenoid or motorized) mechanism there could be dried out lubricant preventing the mechanism from operating properly thus not allowing the pinch roller to engage fully with the capstan.

In looking up that model online I see that it's a motorized mechanism which can be quite complicated to work on. I'm not trying to discourage you but the information needed to repair such a unit is not easily imparted through writing. The one thing you could do is open it up and look for broken or slipping belts. Often times they simply become loose (as the rubber ages) and fall off. Other than that you may have to seek out a repair shop for an estimate.

Oct 15, 2008 | Audio Players & Recorders

5 Answers

Error 01

Error code 01:
what to do:
open the tray, power down the unit, remove the top cover, remove the transport
(4 screws and a few conectors... I think there's a long 'transport load spring' also...)
then turn the transport over.
Looking at the bottom of the transport, there's a small, -no, make that tiny- black rubber drive belt
which goed from a very small pulley to a rather larger pulley directly next to it...
That's the one. Buy more than one replacement (they're only a buck or two) and put a new one on.
-then take the spare, and place it in a baggie and tape the baggie up inside the lid of the DA-30MkII...
Put some sort of friendly note in there for the next time the new owner of the machine needs to replace the belt.

Oct 29, 2007 | Tascam DA-30MKII

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