Nakamichi MR-2

gain-wire · 18th October 2009, 05:18 AM

Hi there, does anyone have a service manual/schematic for the Nakamichi MR 2 cassette deck? It's a professional version with balanced ins/outs and pitch control.

That's actually the problem, and yes I've cleaned the little 2K potentiometer, it didn't help.

Thank you

thinkzinc · 14th November 2009, 03:15 AM

I have the same problem on the same deck! I just got one today in the mail from an ebay auction. Here's what I did. I'd rather have no pitch control and a working deck. So I pulled the second connector out (the bigger one) of the pitch board. The sound slowed down. Then I noticed that if I ground the board, the music slows down even more. So I connected a wire between the chassis ground and the board. Then I dialed the little black pot on the top until I had the right pitch. Done. Perfect.
To recap:
1. Disconnect the lower, bigger connector from the pitch board. You can find it by taking the lid off the deck and looking right behind the pitch knob.
2. Connect a wire from the chassis ground to the pitch board. There are two screws to choose from on the pitch board.
3. Adjust the little black pot on the top of the pitch board to the correct pitch.

I hope this helps!

18th October 2009, 05:18 AM	#1
gain-wire diyAudio Member Join Date: Nov 2004 Location: NCR	Nakamichi MR-2 Hi there, does anyone have a service manual/schematic for the Nakamichi MR 2 cassette deck? It's a professional version with balanced ins/outs and pitch control. That's actually the problem, and yes I've cleaned the little 2K potentiometer, it didn't help. Thank you __________________ Trans-directional-servo-logamp non-zerocrossing autogain compressing thingamajig

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14th November 2009, 03:15 AM	#2
thinkzinc diyAudio Member Join Date: Nov 2009	I have the same problem on the same deck! I just got one today in the mail from an ebay auction. Here's what I did. I'd rather have no pitch control and a working deck. So I pulled the second connector out (the bigger one) of the pitch board. The sound slowed down. Then I noticed that if I ground the board, the music slows down even more. So I connected a wire between the chassis ground and the board. Then I dialed the little black pot on the top until I had the right pitch. Done. Perfect. To recap: 1. Disconnect the lower, bigger connector from the pitch board. You can find it by taking the lid off the deck and looking right behind the pitch knob. 2. Connect a wire from the chassis ground to the pitch board. There are two screws to choose from on the pitch board. 3. Adjust the little black pot on the top of the pitch board to the correct pitch. I hope this helps!

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