Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Yamaha CDX-590 laser adjustments?
Yamaha CDX-590 laser adjustments?
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 19th December 2012, 04:36 PM   #1
HWTest is offline HWTest  Czech Republic
diyAudio Member
Join Date: Dec 2012
Default Yamaha CDX-590 laser adjustments?

I have a Yamaha CDX-590 CD player and it skips on some CDs - original CDs, these CDs play without problems on my other CD players.
I have changed the laser unit (KSS-210A) but this didn't solve the problem.
When I turn the player upside down, it plays the problematic CDs without a problem.
That's why I think the laser needs adjustment.
I have only a service manual for the CDX-493/593 but they should be very similar to the CDX-590.
It seems that the adjustments are done via "test mode" of the CDX-590, unfortunately there is not much information, how to exactly, in the service manual.
Here is a picture of the PCB.
Here are the "test mode" sections of the service manual.
Click the image to open in full size.
Click the image to open in full size.
In "test mode" I have tried Auto adjustment mode 1, 2, 3, but I don't know if it should work fully automatic without any intervention or when the mode is finished and I can proceed to the next one? Should I press STOP between the modes, what CD should I use?
So I activated mode 1, waited a while, activated mode 2, waited a while, activated mode 3, then exited test mode.
It didn't help much.
Mode 1 - only a short blink of two horizontal dashes on the display and thats it
Mode 2 - started "play" without sound from some time, after a while it skips to another time, "plays" a while, then skips again and "plays" and so on, I left it about an hour and it was still going on
Mode 3 - seems to be very short as mode 1
I think I'm missing something ...
I bought this player new and it was not heavy used.

Maybe someone did this or even serviced Yamahas in an official service and can provide information how to adjust the laser?
Or maybe the problem is not the laser?
  Reply With Quote
Old 20th December 2012, 06:00 PM   #2
WAR415 is offline WAR415  United States
diyAudio Member
Join Date: Apr 2008
Try checking the plater motor for wear if there is any side to side play or if its difficult to turn then the motor needs to be replaced. Also check the clamp arm bearing which presses down on the cd and plater. If it uses a bearing it can make a permanent indented wear mark to the plastic surface causing it to skip. I'm not sure what the CDX-590 uses for its clamp arm and plater motor or what it looks like. Some high end units use a magnetic puck instead of a bearing and spring application for securing the disc. Hope this helps a little.
  Reply With Quote
Old 20th December 2012, 06:20 PM   #3
WAR415 is offline WAR415  United States
diyAudio Member
Join Date: Apr 2008
From looking at a few pictures it uses a magnetic puck so there is no bearing being used here. I have several transports of this type and have not seen one with a worn motor but its still possible. If you do any adjustments to the trimmers make sure you mark them and be very careful of static discharge since this will destroy a laser easily. You should use a grounded wrist strap when working around the laser pick-up anyway.
  Reply With Quote
Old 20th December 2012, 07:57 PM   #4
HWTest is offline HWTest  Czech Republic
diyAudio Member
Join Date: Dec 2012
Thank you for your suggestions.
I'll take some pictures of the transport, next time I have disassembled it.
I don't want to rule out the motor, but the player was used only occasionally, so I don't think it should be worn out.
There are no trimmers on the PCB, only on the laser pickup - I don't want to mess with that one.
The laser to my knowledge is somehow "auto adjusted" in "test mode" but I don't know the exact procedure.
  Reply With Quote


Yamaha CDX-590 laser adjustments?Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
SCD-1 laser adjustments Jamh Digital Source 2 9th March 2011 10:09 PM
FS:Laser for Yamaha CDX-993 jean-paul Swap Meet 1 26th February 2007 11:58 AM
Laser unit used in Yamaha CDX-700 Dumbledore Everything Else 8 7th December 2005 02:06 PM
laser pickup for YAMAHA CDX 810 guytou Digital Source 6 27th June 2005 08:21 AM
mods for Yamaha CDX-590 Mr. Triatic Digital Source 0 2nd March 2002 07:39 PM

New To Site? Need Help?

All times are GMT. The time now is 03:23 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio