skipping CD3.5

Posted by: AJ on 02 December 2002

A while ago i placed a topic on this forum complaining about my CD3.5 skipping bits of the music. I have brought the cd player back to the store and they replaced the Laser unit, servo unit for positioning the laser and tested the player several times.

each time i got the player back it plays for about two days and then the problem is back. the problem is the worst wirste with CDR's discs.

Has any body got an idea of what the problem is with my player. Because i get a little tired of it.

aj
Posted on: 02 December 2002 by Lightkeeper
AJ,

I am very sorry about your situation, but the only thing what is left to you is to ask Naim what you/they can do? I hope that they will help you.

Ozren
Posted on: 02 December 2002 by blythe
I have owned 2 CD3.5's for a few years now (about 4 years each) and have NEVER experienced a skipping disc.

One unit, I have at my home in Australia, where, dare I say, I use predominantly CD-R's as my source. (Burnt from my originals that I have in the UK I hasten to add).

As I say, I have NEVER had a single skip or glitch from either machine.

I presume you have been able to demonstrate the problem to your dealer in his presence?

Could it possibly be the siting of the CD3.5 in your environment? Maybe heat related? Vibration?

Or did your dealer really carry out the repair work he claims to have?

I presume your CD's still look like new :-))))

Just a few thoughts.........

Computers are supposed to work on 1's and 0's - in other words "Yes" or "No" - why does mine frequently say "Maybe"?......
Posted on: 02 December 2002 by Manu
AJ,

Your dealer has changed the transport (i hope that's what you mean by "laser unit"), and obviously it didn't correct the problem. A VAM1205 is not cheap, you must have serious talk with your dealer...
Ask him what part(s) did he exactly change. Try an other Naim player in the exact location of your 3.5. Report to your dealer and to the importer if it is not enough and at last to Naim directly.
Did you bought your CDP from your dealer?

You said: they have tested the CDP several times. What do you mean?


Emmanuel

All opinions are my own, and reflect those of the organisation i work for, even if not stipulated.
Posted on: 02 December 2002 by AJ
thanks for your reaction,

my Cd player is standing on a nait 3 wich is placed in a audio rack.
for the first two years i owned the player it has never been a problem.

also i am very carefull with my CDR's because the damage quickly. I always make sure i put them right back in there casing after i used theme.

Maybe a little detail: the CD player was always been very silent, but when i now skip to a number on a cd you can hear the laser unit move with a buzzing sound of moving.

I was thinking of an upgrade to a second hand CDX, wich has the same transport mechanism. But i think i wait a little longer because i dont trust the mechanism any more

aj
Posted on: 02 December 2002 by Manu
Did they changed the transport or only the laser unit?

This transport is very reliable. Don't forget the CDX. but fix your 3.5,otherwise you won't be able to sell it.

Emmanuel

All opinions are my own, and reflect those of the organisation i work for, even if not stipulated.
Posted on: 02 December 2002 by AJ
dear manu,

thanks for your reaction.
When my CD player was gone for repairs i had my brothers CD 5 on loan (thanks Brother), never had any problems with it, Played perfect. )on the same Nait 3).

I brought the player back to the dealer, and i was there when he opened it and checked it. He first replaced the laser( not the driving unit).
This was not the solution so the second time i brought the player he replaced the driving unit. so the complete system then was replaced. (laser and drive unit)

The dealer where bougt the stuff has send it to the main supplier in holland for repairs. When it came back it was worse then ever.( my dealer was not happy with that)

The last time i send it back to my dealer he had it for two weeks for testing and also replaced the laser (agan).

So now im sitting with a CD-player that is still not working properly.

aj
Posted on: 02 December 2002 by jpk73
Hi!

1.) Does the problem appear also with "normal" CDs, or only with CDRs?

2.) If it only appears with CDRs: what brand do you use? Are there CDRs without that problem?

3.) Does it happen also if you burn the same type of CDR in a different writer?

4.) Did you check if the WAV-file copied from the original CD to your harddisk does play back without any drop outs?

5.) What about the Puck of your CD3.5? Did you try a new puck???

Here are some recommendations:

a) Try to use some Mitsui SG (Silver/Gold, or Gold) CDRs.

b) Use a decent writer, e.g. Yamaha, Plextor or a stand-alone Hifi, e.g. Pioneer

c) Original CDs should be perfectly clean and without any scratches before you copy them to your harddisk.

c) Use a decent Software to copy the original to your harddisk, e.g. exactaudiocopy.de

- Jun
Posted on: 02 December 2002 by Manu
Jun,
For CDR copy, you should not use your hard-disk.
Buy an other CD player, they are very cheap at 12x if you can find one. Copy direct from CD player to CD writer. It is much better even with IDE drives. I do copy at 4x and the result is "perfect".


AJ,
I don't understand the idea of changing only the laser unit one time and the drive unit an other time. These 2 units are calibrated to work together. I've never played with this, and IMHO nobody should. Ask your dealer to order a VAM1205 from NAIM, they test them. Or better, ask him to ship the unit to Naim in Salisbury, it will cost, it will be long, but your problems will be solved, point.
And they will only charge you for the truly defective parts. The noise of the laser unit indicates a non optimized fitting.

I've never experience problems reading CDR (i say CDR not CDRW) with a 3.5, (nor with any Naim CDP); my test disks are on blue CDR knowned to be hard to read.

Emmanuel

All opinions are my own, and reflect those of the organisation i work for, even if not stipulated.

[This message was edited by Manu on TUESDAY 03 December 2002 at 00:01.]
Posted on: 03 December 2002 by Manu
Why :
Not wanting to disagree?

You have all rights to disagree with me.

May be i have been too affirmative. My comments are based on my experience with my own system.

Emmanuel

All opinions are my own, and reflect those of the organisation i work for, even if not stipulated.
Posted on: 03 December 2002 by AJ
thanks for your replies.

I'm using CDR's not CDRW's.

And the problems of skipping bits is the worst with CDR and not with origanal CD's. The player skips parts of an origanal CD too but lets say two times on one play of a disk. With a CDR it skips for about every number it plays. Sometimes the player stops at all.

The brand of CDR i use is usally "That's Write".
And the are very nice to use. I have had no problems with them before. I usually burn them at 4 speed.

The CD 3.5 Had never a problem reading theme well until a few months ago. But normal CD's skip to so i don't think it is only to blame the CDR's.

My brothers CD 5 has no problem reading my CDR's.

aj
Posted on: 03 December 2002 by Manu
Alan

Thanks for your politness, if all posters could be like you!!
I use a HP 8100 serie writer (12x) and a Sony 32x player. IMHO, the speed difference of the 2 units (i burn at 4X) leave time for the reader to re-read if it encounters a problem, Am I wrong? (I'm better at electronics and Hi-Fi than computers). I use Adaptec DirectCD as software. I've never had problem of corrupted data.
I will try an other time to compare the two processes. But i am quite busy these days with all the new Naim stock.
The main problem I have experienced is the long term data retention of CDR. After 1 year, they start to degrade, the sound difference vs the original becomes quite obvious. Or is it the less carfull handling than our beloved CD.

Emmanuel

All opinions are my own, and reflect those of the organisation i work for, even if not stipulated.
Posted on: 04 December 2002 by jpk73
Always copy an image to the HDD, with Feurio or Exact Audio Copy. Your drive should be able to read audio-CDs without errors, you can verify this with CRC32 or have a look at the feurio website.

- Jun
Posted on: 04 December 2002 by Markus
AJ,

Yes, my cd 3.5 also skips on some CD burns that my nephew made for me on his computer. I don't think I've ever had a problem with a commercially produced cd, nor have I had a problem with copies I've made using my cheap Circuit City "Classic" machine. FWIW, I prefer copying at slower speeds in an attempt to minimize errors. I'm assuming my nephew just burned the copies he made me at a fairly high speed. Who knows, they may have been burns of burns. If you know what I mean.

I've also sometimes experience reading these burns using my DVD player on my laptop. This makes me think these discs are marginal in some way. Don't know if I'd have this problem with my stand alone Denon cdp.

Markus
Posted on: 05 December 2002 by AJ
thanks for all your reactions.

I don't think the CDr's are to blame because on my brothers CD 5 there is no problem reading the discs.

usually i burn the cd's from the harddisk. with a speed of 4 speed.

also i have got a new puck for the player and that didn't help.

Well i think it is a bit strange that CDR's cause the most problems. I know they are more delicate than original cd's , but i make sure the surface of the cd is not damaged in any way and is clean of finger prints.

i think the player has to go back to Naim England for retuning the laser (or something like that).


AJ

CD3.5, Nait3,Flatcap II, Nap 180, Nat 05

aj