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Old 24th January 2014, 01:37 PM   #1
adason is offline adason  United States
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Default NIKKO ND-790 cassette deck

I am in the process fo restoring this old cassette deck NIKKO ND-790 to complete the vintage collection of NIKKO electronic...and was wondering if anyone can provide schematics. Is there a speed control for DC motor in this deck? Thanks.
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Old 24th January 2014, 01:46 PM   #2
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Quote:
Originally Posted by adason View Post
Is there a speed control for DC motor in this deck? Thanks.
In main/capstan motor.

Nikko ND 790 Service Manual | eBay
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Old 24th January 2014, 01:50 PM   #3
adason is offline adason  United States
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that link does not work for me...
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Old 24th January 2014, 02:05 PM   #4
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This: Nikko ND 790 Service Manual | eBay
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Old 24th January 2014, 02:49 PM   #5
adason is offline adason  United States
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nope, still nothing, as many times I click on the link, it takes me nowhere
look, I appreciate the effort, I know how to search an ebay, but I am not looking to buy service manual, I just need schematics if someone has it
do you have it?
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Old 24th January 2014, 04:36 PM   #6
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Nope for free.
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Old 24th January 2014, 04:59 PM   #7
Mooly is online now Mooly  United Kingdom
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Try this for the link,
Nikko ND 790 Service Manual | eBay
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Old 24th January 2014, 05:01 PM   #8
adason is offline adason  United States
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that works, thanks Mooly
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Old 24th January 2014, 05:01 PM   #9
Mooly is online now Mooly  United Kingdom
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That seems to work...

Is there not a preset in the back of the motor. 95% of cassette motors use one with the adjustment accessible via a small hole. The exception are motors with centrifugal mechanical regulators... sounds bizarre but they exist and were common in car audio gear.
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Old 24th January 2014, 05:05 PM   #10
adason is offline adason  United States
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will check it out when I get back home, thanks for the tip
I was looking at the pcb, but have seen no pot or trimmer, but its weird two sided board, there are parts underneath
one would assume it should be readily accessible, but I have not seen anything yet
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