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-   -   Test CD for CD player adjustment (http://www.diyaudio.com/forums/digital-source/67783-test-cd-cd-player-adjustment.html)

HJ Nijland 13th November 2005 09:37 AM

Test CD for CD player adjustment
 
I'm in need of a test CD manufactured by Sony called YEDS-18. It is possible to get hold of it through official channels but this piece of plastic costs around €220,- :dead:

I thought it may be a possiblity to use a copy... If someone is willing to help, many thanks. Btw, I have a Paypal account... ;)

JohnW 13th November 2005 10:10 AM

I believe your missing the point of a “Test CD” for Alignment of CD mechanisms. It’s not so much the data that’s recorded (unless you need the test tones), but rather the quality of the Disc itself, RF level, Jitter, Disk Wobble and Flatness (warps). There’s no way a CDR copy is going to meet any of these requirements.

If you need it JUST for the test tones, then this is a different matter – however looking at the disc index – I don’t see any special test tones that could not be generated by cool edit etc.

John

HJ Nijland 13th November 2005 03:10 PM

OK, thanks. I guess there's no other option than to order it than.

Netlist 13th November 2005 03:18 PM

Is there something wrong with the player?
What's the brand (Sony?) and type#?

/Hugo :)

anatech 13th November 2005 03:23 PM

Hi HJ Nijland,
I purchased almost all the test CD's. After I became more knowledgeable I realized all I need are some CD's with good eye patterns and the "Pierre Verany" test disc from Old Colony Sound. Catalog # PV. 788031/788032. There are some machines (like the original Philips / Revox units) where you do need the Philips 5 and 5A set. That price is up there too.

Like John said, these are not normal CD's at all. You can't copy them, the physical defects introduced are precise.

-Chris

HJ Nijland 13th November 2005 10:11 PM

The task to do is adjusting an Onkyo 7711 player. The 7711 and 7911 are equipped with an auto-adjustment-self-test system which requires a YEDS18 disc. It's not possible to do this by hand unfortunately, I tried and made the problem worse.

anatech 13th November 2005 10:18 PM

Hi HJ Nijland,

Arrrggghhh. It's auto-almost right. In that case you are better off with a brand new disc, don't bother with used. Sadly, the price for this disc is average and about what I was quoted years ago.

-Chris

JohnW 14th November 2005 12:11 AM

HJ Nijland,

If you only require the disc for a while, I can send you mind - so long as you send it back once you have completed your repair.

Contact me via PM if your interested,

John

HJ Nijland 14th November 2005 02:58 PM

Quote:

Originally posted by JohnW
HJ Nijland,

If you only require the disc for a while, I can send you mind - so long as you send it back once you have completed your repair.

Contact me via PM if your interested,

John


That's really kind of you John, thanks. I have allready ordered the disc though. ASWO kindly gave me a discount, I got it for 83,44 Euro ex VAT.

Once I have the disc, I'll try to copy it just to see if it'll be usable to adjust a player... I'll let you know.

Salar 8th November 2006 09:41 AM

Hi John, hi HJ Nijland,

could you lend me an YEDS-18 for some days? Or, tell me from where to get one?
The source I know charges about 120€ for one disc...
What were your experiences? When adjusting your players, did the disc produce signals as expected on the scope, or, did it not differ from a common audio-CD?
Thanks in advance,
all the best, Salar


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