Main board for Denon DP59 deck

Swarky · 1st January 2012, 08:37 PM

WTB Main board for this deck. Mine is kaput. If not, can anyone fix them ?

h_a · 2nd January 2012, 07:04 AM

What a nice deck, sorry to hear it doesn't work!

There might be the service manual available at vinylengine.com, in case you try to fix it. What is the problem exactly with your turntable? If it simply does not start, that might be possible to repair, but real failures like dead motors (like arm lifters) are impossible to fix without a 2nd deck to cannibalize parts from.

As last option, before throwing it away shoot me a pm, I might take it and refund you the postage.

Good luck! Hannes

Swarky · 2nd January 2012, 07:49 AM

Hi Hannes,
The problem is speed stability. And it started just after having built a new plinth and bought an Audioorigami PU7 arm for it to replace my Rega. I shouldn´t have tempted fate.
Guess I need a 2nd deck.

h_a · 2nd January 2012, 12:34 PM

Quote:

The problem is speed stability.

Does it get quarz-locked at any point? Or does it drop out and back in the lock?

Hannes

Swarky · 2nd January 2012, 06:03 PM

It starts up and stabilizes and is OK for a short while then it starts to accelerate and doesn´t look back til you switch off.

Cobra2 · 2nd January 2012, 07:58 PM

Put your cell-phone far away from the tt?

Arne K

john65b · 3rd January 2012, 01:31 AM

From what I have read about older tables, is the electrolytic caps go bad...change them on the board - quick and may be just the fix.

h_a · 3rd January 2012, 08:09 AM

Quote:

is the electrolytic caps go bad...

While I can recommend that for any some decade old gear, I haven't ever encountered a device that really didn't work only due to the caps gone bad. The gear typically works a bit worse, but it works.

Any case, that's something to try.

Please bear in mind that the old tables usually come with paper boards and traces lift very fast with these boards. Check for that and be prepared that you might fix lifted traces with a piece of wire.

Quote:

then it starts to accelerate and doesn´t look back til you switch off.

It's strange that it doesn't stay locked. So it is not the 'crude' unlocked speed regulation circuit, but somehow the PLL is not happy. You can check the electrolytic caps around the PLL (get the service manual first).

Hannes

Swarky · 3rd January 2012, 08:34 AM

Thanks to everyone. I´ll start checking things.

1st January 2012, 08:37 PM	#1
Swarky diyAudio Member Join Date: Feb 2009	Main board for Denon DP59 deck WTB Main board for this deck. Mine is kaput. If not, can anyone fix them ?

2nd January 2012, 07:04 AM	#2
h_a diyAudio Member Join Date: Sep 2006 Location: Graz, Austria	What a nice deck, sorry to hear it doesn't work! There might be the service manual available at vinylengine.com, in case you try to fix it. What is the problem exactly with your turntable? If it simply does not start, that might be possible to repair, but real failures like dead motors (like arm lifters) are impossible to fix without a 2nd deck to cannibalize parts from. As last option, before throwing it away shoot me a pm, I might take it and refund you the postage. Good luck! Hannes __________________ fresh matched IRFP240/IRFP9240 fets \|\| AlephJ/JX-kits F5 transistor kits \|\| Burning Amp BA-1/2/3 transistor kits

2nd January 2012, 07:58 PM	#6
Cobra2 DIY ! diyAudio Member Join Date: Apr 2002 Location: Stavanger, Norway	Put your cell-phone far away from the tt? Arne K __________________ Ars longa, vita brevis

3rd January 2012, 01:31 AM	#7
john65b diyAudio Member Join Date: Jan 2005 Location: Chicago	From what I have read about older tables, is the electrolytic caps go bad...change them on the board - quick and may be just the fix. __________________ "I speak Spanish to God, Italian to Women, French to Men, and German to my Horse" - Charles V

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2nd January 2012, 07:49 AM	#3
Swarky diyAudio Member Join Date: Feb 2009	Hi Hannes, The problem is speed stability. And it started just after having built a new plinth and bought an Audioorigami PU7 arm for it to replace my Rega. I shouldn´t have tempted fate. Guess I need a 2nd deck.

2nd January 2012, 06:03 PM	#5
Swarky diyAudio Member Join Date: Feb 2009	It starts up and stabilizes and is OK for a short while then it starts to accelerate and doesn´t look back til you switch off.

3rd January 2012, 08:34 AM	#9
Swarky diyAudio Member Join Date: Feb 2009	Thanks to everyone. I´ll start checking things.

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