Kenwood KD-990 troubles/service manual

[h_a]

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

 

[h_a]

C'mon! Nobody a hint?

All help greatly appreciated! All the best, Hannes

 

[h_a]

Ej, no Kenwood-guru here??

All help greatly appreciated! All the best, Hannes

 

[Cobra2]

Did you ever get that Kenwood running?
I have just restored a KD-990 with the same symptoms.
Running great now!

Arne K

 

[h_a]

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

 

[Cobra2]

Picture:

Arne K

 

[Ericc18]

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

 

[h_a]

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

 

[directdriver]

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...?

 

[h_a]

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