Kenwood KD-990 troubles/service manual - diyAudio
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Old 11th September 2007, 01:38 PM   #1
h_a is offline h_a  Europe
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Default Kenwood KD-990 troubles/service manual

Hi folks!

My fabulous Kenwood KD-990 is making troubles! It does not start always when I hit the start-button. Giving the platter once a gentle push before hitting the start-button results in far too slow rotation, coming to a stop after a very slow turn. Otherwise perfectly fine condition (tonearm lift...).

The electronic brake also does not seem to work absolutely every time!

Do any of you have a clue and/or a service manual for that turntable??

Would be great!

All the best, Hannes
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Old 12th September 2007, 09:39 AM   #2
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C'mon! Nobody a hint?

All help greatly appreciated! All the best, Hannes
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Old 17th September 2007, 09:11 AM   #3
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Ej, no Kenwood-guru here??

All help greatly appreciated! All the best, Hannes
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Old 21st February 2009, 02:55 PM   #4
Cobra2 is offline Cobra2  Norway
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Did you ever get that Kenwood running?
I have just restored a KD-990 with the same symptoms.
Running great now!

Arne K
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Old 23rd February 2009, 04:56 PM   #5
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Hi,

most of the stuff was fixed long time ago

Only thing left is the electronic brake, but maybe that's normal behaviour for that model?

At least I don't see any possible adjustments in the service manual regarding it.

All the best, Hannes
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Old 23rd February 2009, 09:20 PM   #6
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Old 30th March 2012, 05:32 AM   #7
Ericc18 is offline Ericc18  United States
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Hello,

I just purchased one of these KD-990 and I love it. However I'm having a hard time getting an owners manual. I'm trying to see how I can adjust the tonearm height, and get any other details on any tune up work it might need.

Can someone help please?

Thank you!!!
Eric
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Old 30th March 2012, 06:32 AM   #8
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The biggest ressource for infos on turntables/cartridges etc on the net is the vinylengine, where you only need to register to access all sorts of manuals for free, also for the KD990:

http://www.vinylengine.com/library/kenwood/kd-990.shtml

In case you need also the service manual, it is now also available there.

Enjoy, Hannes

Last edited by h_a; 30th March 2012 at 06:35 AM.
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Old 30th March 2012, 08:43 PM   #9
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My KD-770D starting to act up, similar to your 990. Platter jerks back and forth, mostly backward. What was the diagnose on your table? Bad caps, faulty chips, etc...?
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Old 3rd April 2012, 06:00 AM   #10
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Quote:
Platter jerks back and forth, mostly backward. What was the diagnose on your table?
On mine only the electronic brake acts unreliably, but is otherwise fine. From what I read this is not that uncommon and I still didn't fix it (also didn't have time to investigate).

I'm sorry I don't have much idea what could be wrong with your KD770! Wild guess would be sensor circuitry.

Hannes
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