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Marantz CD-6004 Skipping.

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nbat58

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I see you didn't get any response. If you like to tinker, try it. I see the price for the laser assembly is low enough. However, your laser works, the machine can play disks. The issue will be in another place. You already tried to reduce the friction on the laser sled. Next comes the motion-control which is other hardware. It looks like the laser mechanism brings new servo motors, however the problem can just as well be in the servo-controllers which aren't replaced that easy without the right tooling. Looks like half a days work for the uninitiated amateur. The service manual for the CD6005 is free to download from the internet, but it won't help much I wouldn't try it, but buy a new dependable machine.
What would you call a new dependable machine these days?

I am looking at a CD transport and DAC currently, for cd transport budget end, there's the Cambridge Audio cxc or the Audiolab 6000cdt, I don't like slot loading of the Audiolab, so this leaves the Cambridge Audio cxc but not sure how reliable is this CD transport.

Anything else and I'll be looking to spend at least a 1000 for a CD transport.

Now for the dac, god knows, there's so many out there with no chance of trying any of them.

Unless I just go for another Marantz player which will be built in Vietnam more than likely and may only last a handful of years.
 
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nbat58

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Late reply and hope the post I refer to above helps.

I was given to try to fix a rather nice, solid Technics MASH player froim 1998 or so. It used the linear tracking mech that Marantz seemed to use around this time and this one would 'jump' at 17 - 20 seconds into a piece of music from disc-start the first time it was played from 'cold.' As above, it was the hardened grease on the rails and sled gearing, the laser's free focusing movement being used for the first few seconds. Totally removing the old compacted grease and very lightly lubricating the rails with light oil (barely a drop in my case) totally cured the issue.
I have installed a new none genuine Sanyo laser mechanism and greased it to no avail.

I will probably need to look for a new machine like evalrat suggested.
 
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nbat58

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Like I said before, the SF-P10N is not something you just 'drop-in' and everything just works. CD players are phenomenally compliciated devices and every single sub-system interacts with everything else.

The set-up procedure and alignment of a typical CD player can take half a day, involves a service manual and is done is a specific order of carefully controlled steps using various test equipemnt and procedures.

It is not a job for a guy with some lithium grease and a screwdriver.

If you cannot even view the RF eye-pattern with a scope, you should stop there.
I hear you, I don't have the right equipment or knowledge to attempt such a repair.

I am currently hunting for a new cd transport and dac, we'll see...
 
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nbat58

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Just purchased a DAC, of course I haven't tried it...

After multiple searches, I have decided not to go for a Chinese brand DAC, so I bought the RME ADI-2-DAC FS.

Now need to find a CD Transport to go with it.

 

tyreman

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I had a Marantz CD Player 5005, D of M 2018 had been a refurb. figures) start skipping few days ago , checked lens looked fine no debris, cleaned anyway but wasn't that impressed with the seemingly cheap drive mechanism, I put it out at the curb
Can be a few things including sled motor ,ribb cable, other parts , laser
 
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restorer-john

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I had a Marantz CD Player 600* something, D of M 2018 had been a refurb. figures) start skipping few days ago , checked lens looked fine no debris, cleaned anyway but wasn't that impressed with the seemingly cheap drive mechanism, I put it out at the curb
Can be a few things including sled motor ,ribb cable, other parts , laser

The objective needs to be very carefully cleaned. Even the tiniest film can cause issues with skipping. And mould/fungus can grow on the components.

Here's an example:

1702544924291.jpeg


That CD player was playing fine, most of the time, but had trouble with some discs. After a clean- perfect.
 

tyreman

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The objective needs to be very carefully cleaned. Even the tiniest film can cause issues with skipping. And mould/fungus can grow on the components.

Here's an example:

View attachment 334158

That CD player was playing fine, most of the time, but had trouble with some discs. After a clean- perfect.
Yeah I tried looking with a Tasco Jewellers Loupe has three lens but couldn't see any crud
 
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nbat58

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It seems that it isen't only the lens that can affect skipping, after years of playing the CD players probably had the focus or other pot setting that gone maybe loose.

I think that these skipping players are repairable, need to have the service manual an oscilloscope and of course the knowledge to recalibrate whatever has gone out of spec.

The problem is, is it worth recalibration these players seeing the cost of repair? I would say maybe yes, if the player has some sentimental value or hard to come by again made in Japan machine.

Lots of players now a days use the Sanyo mechanism as laser mechanism are no longer made I believe.

I myself retired my Marantz (made in Japan) Cd6004 player and bought a CEC TL5 CD Transport.
 
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