NAD CD player Skipping

[tube-a-lou]

Hi all,
I have a NAD 5425 CD player that on some CD's has a tendency to
skip when I play the Same CD's with my California Audio labs Icon
they breeze right thru with no problem anybody else have any problems
with there NAD's or it's a common thing???

Thanks

 

[Dan ʕ•ᴥ•ʔ]

Manufactured discs or burned (copied) discs? If burned, make sure you aren't using "data" discs and burn at the slowest speed for fewer errors. Sony "music" cd-r's are good reliable blanks. Or you may want to try cleaning the laser with compressed air or a cleaning disc.

 

[Grainger49]

Sometimes cleaning the CD has helped on my Philips 963. The same disk will play on my proceed without cleaning. It is likely the laser or the sled. The sled can be lubricated if it is sticking. The laser lens can be cleaned.

 

[tube-a-lou]

Sometimes cleaning the CD has helped on my Philips 963. The same disk will play on my proceed without cleaning. It is likely the laser or the sled. The sled can be lubricated if it is sticking. The laser lens can be cleaned.

What can be used to lubricate it safely

 

[Grainger49]

It depends on what you are lubricating. I have slides on a portable that seemed un-lubricated, or had become dry. I used a very light Teflon lube. I applied it, worked the sled back and forth a few times and wiped all of the excess off.

If you have a gear driven sled you need to clean them first and put on sewing machine oil (not 3 N One). As before clean any excess.

What does the sled look like? Maybe post a picture?

 

[Raynald]

The original question was about this being a common thing or not. My take: You are doing well if it is just skipping now. I used to sell those 20 odd years ago and some came back pretty fast. Great sounding machines for the price but reliability and longevity were not their strong suit. Again, this is from someone who saw a lot of them go out the door and based on percentages, I am sure there are some people who have individual units that are still fine.

 

[tube-a-lou]

It depends on what you are lubricating. I have slides on a portable that seemed un-lubricated, or had become dry. I used a very light Teflon lube. I applied it, worked the sled back and forth a few times and wiped all of the excess off.

If you have a gear driven sled you need to clean them first and put on sewing machine oil (not 3 N One). As before clean any excess.

What does the sled look like? Maybe post a picture?

Here's a picture of the transport of the NAD I had to really clean it up,
because it came from a home with Cats and Dogs So Hair Balls were the course of the day but it was working good for a while, but still needs another
cleaning.

 

[tube-a-lou]

I found a hair in the laser assembly 1/4" long and pretty thick
right by the lens of the laser, took out that bad boy added a little
lub and so far it play's good no skipping yet

 

[Grainger49]

Here's a picture of the transport of the NAD I had to really clean it up,
because it came from a home with Cats and Dogs So Hair Balls were the course of the day but it was working good for a while, but still needs another
cleaning.

That is the rod I lubed on my Panasonic portable. The nylon gears are probably, I am guessing here, self lubricated.

 

[Grainger49]

. . . The other thing the tech advised me to do was to find a cd with many tracks, preferrably with over 15 tracks. Start to play the cd on the first track and immediately skip to the last track. This forces the assembly to travel the full length of the rails and then skip back to the first track. In simple terms, this gives the mechanism a work out. . . .

Funny, I used New Acoustic Music Sampler from Rounder. That is exactly what I did. I'm glad that made sense looking back at it.

 

[tube-a-lou]

I have a NAD c521i that I bought used about two months ago, maybe less. It had the skipping problem, but it would also just stop while the laser was unsuccessful at reading the data. Sometimes the motor would just stop spinning.

I took to my local tech who checked the screws holding the pcb in place, used a q-tip with distilled water to dampen very lightly and carefully cleaned the laser lens, then made an adjustment to the laser assembly screw (which I don't think did much).

The other thing the tech advised me to do was to find a cd with many tracks, preferrably with over 15 tracks. Start to play the cd on the first track and immediately skip to the last track. This forces the assembly to travel the full length of the rails and then skip back to the first track. In simple terms, this gives the mechanism a work out.

In my case, simply using the cdp has helped. I have gone weeks without ANY issues, until two days ago when it temporarily hung reading data for about 1 second. After looking at the CD (from the library) I saw why. The disc surface had some messed up areas that frankly, I'm surprised the player could read. So no surprise there.

I have also removed the cable ribbon from the pcb and from the laser assembly, which is easier than it sounds. Remove a few screws on the assembly to get a safe grasp of the connector on the laser assembly so you can safely remove the ribbon without breaking anything. I sprayed/cleaned with some DeOxit on the contacts at each end of the ribbon cable and replaced. You can also swap ends and try that way.

I did a simple cleaning of the rails as well after using some canned air to carefully blow out any dust/debree.

Sounds like a lot, but I love the sound of this deck and for the price I paid, I doubt I'll find anything better without spending a lot more.

Hi
Thanks for the info, that helps a lot, of course it helps not to have Cat
and Dog hair all over the place from a past owner, but will try those cleaning tips.

Thanks
tube-a-lou

 

[tube-a-lou]

where did you get the transport from??