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Denon Dp 60-L gone dead

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Posted on December 3, 2011 at 14:42:48
napageneral
Audiophile

Posts: 2
Location: No Cal
Joined: December 3, 2011
I've bought this amazing denon dp 60-l turntable used about twenty years ago and it's the envy of all my audiophile friends. After years of faithful service one day the platter strated slowing down and now it won't rotate at all. All the lights come on and I have sprayed the inside circuits with "de-ox" which brought it back to life temporarily.
I took it to a local AV repair gut here in Napa and he told me it was impossible to repair and was essentially a nice looking paper weight(cost me $35.00 to hear this)
My wife is wanting me to "get rid of that thing" but I am stubborn and want to get it working.
Any advice would be greatly appreciated.

 

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Don't Give Up, posted on December 3, 2011 at 15:31:58
Fishstink
Audiophile

Posts: 607
Location: Michigan
Joined: March 24, 2006
Contact Denon. I believe in NY. They are helpful. Did you in anyway, mess with the coating under and inside the platter periphery? Or did the tech? It's upposed to feel something like sandpaper, under the the inside edge of the whole platter.

 

RE: Denon Dp 60-L gone dead, posted on December 3, 2011 at 15:38:57
UFO
Audiophile

Posts: 141
Joined: November 19, 2011
Stop complaining?
You want the guy, who is a repair tech to waste his time and look at for free?

 

Post this over on the Vinyl Forum ..., posted on December 3, 2011 at 16:35:53
reelsmith.
Audiophile

Posts: 8007
Location: CT
Joined: June 7, 2005
Contributor
  Since:
January 19, 2010
...they won't think you are complaining and there are folks there that know Denon tables and can help out.

Dean.


reelsmith's axiom: Its going to be used equipment when I sell it, so it may as well be used equipment when I buy it.


 

RE: Denon Dp 60-L gone dead, posted on December 4, 2011 at 02:45:40
Michael Samra
Dealer

Posts: 32111
Location: saginaw michigan
Joined: January 30, 2005
Contributor
  Since:
June 24, 2005
You may have a couple issues that can cause this..One is the pickup head which is a sensor and they can get dirty causing all sorts of problems..The other are electrolytic caps on the servo motor board..If you need a services manual,drop me an email and i will send it.Change the caps on the SM board.
"

 

RE: Denon Dp 60-L gone dead, posted on December 4, 2011 at 03:31:21
b.l.zeebub
Audiophile

Posts: 4076
Location: 52deg 28'N,1deg56'W
Joined: April 17, 2006
I seem to remember that Denon used a circular magnetic strip under the platter for monitoring the speed.

If that strip has been damaged or become demagnetized there is nothing that can be done AFAIK.

 

There is a coded strip on the inner circumference of the platter., posted on December 4, 2011 at 10:51:45
It is "read" by a magnetic pickup head (looks like a tape head). If this head gets dirty, platter speed will be irregular or stop altogether. If cleaning this head (use denatured alcohol or tape head cleaner)does not restore operation, the problem could either be bad capacitors or, if you are really unlucky, the main IC. This integrated circuit is no longer made and practically unobtainable.

Good luck.

 

Wrong, the IC is obtainable..., posted on December 5, 2011 at 07:49:22
Lew
Audiophile

Posts: 6876
Location: Bethesda, Maryland
Joined: December 11, 2000
True, the IC is no longer made and has not been made since 1983. It was made to order for Denon to run their turntables. But there are numerous vendors in Hong Kong (mostly) who have it in stock. I bought one plus two extras for my DP80 only about a year ago. Google "SC3120A", and you will find suppliers. But before you go off the deep end, try cleaning that tape head and by now also you absolutely should replace all electrolytic capacitors, as per Mike's suggestion. But be very careful not to damage that light brown strip of what looks like tape affixed to the inner rim of the underside of the tt, faces opposite the tape head when platter is installed. As I and others understand it, this cannot be repaired if damaged. (However, don't see why you could not get another platter off a "parts tt", if the strip is damaged.) One more thing, there are several transistors in the servo circuit that also can go bad, especially if you have a leaky electrolytic in there. Finally, two words: "Bill Thalmann" at Music Technology in Springfield, VA.

 

Had the same problem, posted on December 6, 2011 at 19:26:18
Kim G
Audiophile

Posts: 181
Location: Moundridge Kansas
Joined: August 15, 2006
I have a Denon DP 60L and it had the same problems a few years back. I took it to a Denon authorized repair shop and they fixed it, it was a cap that had gone bad. Don't give up.

Kim

 

RE: Denon Dp 60-L gone dead, posted on June 10, 2012 at 18:31:17
VinylRocks
Audiophile

Posts: 1
Location: Iowa USA
Joined: June 10, 2012
Hey, I also own the denon dp 60 turntable and I have the exact same problem. I too do not want to trash it and want to get it fixed. If I run into any good news I will try to let you know.
Love My Vinyl - Mike

 

Like others have said..., posted on June 11, 2012 at 08:19:31
EdAInWestOC
Audiophile

Posts: 5319
Location: Glen Burnie, MD USA
Joined: December 18, 2003
If you aren't giving up you have to replace all of the electrolytics capacitors in that table. Electronic components are designed to only last so long and the lowest life span of them all is the electrolytic capacitor.

That generation Denon turntable is a servo controlled DD model that is controled by a custom Denon speed control microprocessor. Hopefuly you haven't fryed that microprocessor or else that table is a doorstop. Assuming that the microprocessor has survived your use of that table until it died, you can have the table recapped for a reasonable amount.

The cost of the replacement electrolytic caps is around $40 USD (if you buy the caps and do the work yourself) and the labor is whatever the particular repair shop charges. While you have them recap the turntable you should also have them solder all of the wirewrap connections.

The wirewrap connections on old Denon turnntables cause more trouble than you can count so eliminating them is a wise thing to do. The table will then require a servo readjustment which requires a 10mHz dual trace oscope.

If you paid attention to what has already been written the servo system also depends on the strip under the platter where speed pulse information is recorded and the tape head that is mounted unde the platter to read those pulses.

I'm pretty sure that the Denon DP-60L has its drive transistors seperated from the pre-drivers by opto-isolators and spraying around deoxit around under the turntable was probably a bad idea. Its never a good idea to start blindly spraying around cleaners like deoxit on electronic circuitry. Deoxit is made for specific things and spraying it on circuit boards is not one of them.

One other thing...you have been a BAD BOY!!! Never and I repeat never run a turntable like that Denon until it dies. You are asking for trouble to run any piece of electronics blindly without regard for maintenance and the Denon turntable is no exception. We love turntables and vintage gear and you are now required to buy each and every member of this forum the LP of their choice.

OK...thats out of my system.

Go to your room,
Ed

We don't shush around here!
Life is analog...digital is just samples thereof

 

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