Teac VRDS-10 help please?

jonners · 27th January 2009, 12:34 PM

My TEAC VRDS-10 is refusing to read a few discs - most notably hybrid SACD/CDs and CDRs. The problem seems to affect more discs when the player is switched on from cold. After a few minutes warm up some of the affected discs will then be read and will play OK.

The player had a full service two years ago, so the laser should be OK. Please can anyone suggest what I might need to look at first to solve the problem?

John

jonners · 28th January 2009, 09:06 PM

32 views - no ideas anyone?

John

Nanook · 29th January 2009, 06:01 AM

I'm no expert, but perhaps the laser bias voltage might need to be adjusted. Same thing happens to the Sony greystations when used as a cd player (there is a long thread here at diyaudio about that topic, see Playstation as CD player .

Don't know the specs or where to adjust it on the big TEAC, but I think that could be a start.

stew

jonners · 29th January 2009, 06:01 PM

Thanks for that, stew. I'll have to see about getting a service manual to find out where to prod it.

John

inrank · 29th January 2009, 06:07 PM

My VRDS10SE has only slipped (skipping tracks) up when it was either too cold or hot, this was when it was in a conservatory, since it has been in an inside room, its been faultless.

anatech · 29th January 2009, 06:44 PM

Hi John,
Don't touch the laser power adjust.

Use an oscilloscope and look a the eye pattern first. Look at some CDs you have no trouble with (and compare that with the information in the manual), then look at the skipping ones. You need to see what is changing about the eye pattern. Could be jitter, amplitude or just excessive noise. You have got to find out what your problem is before you start doing stuff.

If I had the manual, I could have given you specific things to look for. If you can scan a couple things, I may be able to help there.

-Chris

tvi · 29th January 2009, 10:15 PM

I have the manual for the VRDS-10SE if it is of any use?

Regards
James

anatech · 29th January 2009, 10:22 PM

Hi James,
I'm guessing here, but from what I know of Teac, your manual should be fine. Close enough to allow John to fix his CD player.

BTW, that's very kind of you. Thank you for helping.

-Chris

Audiofanatic · 29th January 2009, 10:50 PM

Hi,

First of all, make sure the KSS-151A (laser unit) can glide easy on the shiny rod and make sure this rod is clean and apply just a little bit of thin oil on it and make sure it glides like if it's floating!

Second, make sure you DO NOT turn anything unless you know what you're doing.

Third, make sure the flat cable that is attached to the KSS-151A is hanging free and is not bend or broken and well connected to the connectors on the PCB's.

last, keep us posted

I hope this will help you fix the player.

All the best,

Audiofanatic

Nanook · 29th January 2009, 11:46 PM

were just that, only suggestions.

anatech:
As I stated, I'm no expert (and I know you are very experienced, so I defer to you). My comment was based on my personal experience with some cd players and the greystations---that's it. Adjusting the bias to the laser focuses it, if I understand correctly.

Audiofanatic : Obviously I would never suggest anybody adjust anything if they are unsure. I have no interest in causing a catastrophic failure in anyone's equipment. And of course checking all the mechanical connections and mechanics is always a good (and easy) place to start.

jonners : know I would never intentionally steer you or any wrong

stew.

27th January 2009, 12:34 PM	#1
jonners diyAudio Member Join Date: Jan 2007 Location: Cheltenham	Teac VRDS-10 help please? My TEAC VRDS-10 is refusing to read a few discs - most notably hybrid SACD/CDs and CDRs. The problem seems to affect more discs when the player is switched on from cold. After a few minutes warm up some of the affected discs will then be read and will play OK. The player had a full service two years ago, so the laser should be OK. Please can anyone suggest what I might need to look at first to solve the problem? John

29th January 2009, 06:01 AM	#3
Nanook diyAudio Member Join Date: Feb 2004 Location: Chinook Country.Alberta	perhaps an idea.... I'm no expert, but perhaps the laser bias voltage might need to be adjusted. Same thing happens to the Sony greystations when used as a cd player (there is a long thread here at diyaudio about that topic, see Playstation as CD player . Don't know the specs or where to adjust it on the big TEAC, but I think that could be a start. stew __________________ stew ☮ -"A sane man in an insane world appears insane."

29th January 2009, 06:44 PM	#6
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi John, Don't touch the laser power adjust. Use an oscilloscope and look a the eye pattern first. Look at some CDs you have no trouble with (and compare that with the information in the manual), then look at the skipping ones. You need to see what is changing about the eye pattern. Could be jitter, amplitude or just excessive noise. You have got to find out what your problem is before you start doing stuff. If I had the manual, I could have given you specific things to look for. If you can scan a couple things, I may be able to help there. -Chris __________________ "Just because you can, doesn't mean you should" © my Wife

29th January 2009, 10:15 PM	#7
tvi diyAudio Member Join Date: Apr 2001 Location: Moonee Ponds, Vic, Australia	I have the manual for the VRDS-10SE if it is of any use? Regards James __________________ The border between the Real and the unreal is not fixed, but just marks the last place where rival gangs of shamans fought each other to a standstill. Robert Anton Wilson

29th January 2009, 10:22 PM	#8
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Right on! Hi James, I'm guessing here, but from what I know of Teac, your manual should be fine. Close enough to allow John to fix his CD player. BTW, that's very kind of you. Thank you for helping. -Chris __________________ "Just because you can, doesn't mean you should" © my Wife


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28th January 2009, 09:06 PM	#2
jonners diyAudio Member Join Date: Jan 2007 Location: Cheltenham	32 views - no ideas anyone? John

29th January 2009, 06:01 PM	#4
jonners diyAudio Member Join Date: Jan 2007 Location: Cheltenham	Thanks for that, stew. I'll have to see about getting a service manual to find out where to prod it. John

29th January 2009, 06:07 PM	#5
inrank diyAudio Member Join Date: Oct 2005	My VRDS10SE has only slipped (skipping tracks) up when it was either too cold or hot, this was when it was in a conservatory, since it has been in an inside room, its been faultless.

29th January 2009, 10:50 PM	#9
Audiofanatic diyAudio Member Join Date: Oct 2002 Location: The Netherlands, Utrecht	TEAC Hi, First of all, make sure the KSS-151A (laser unit) can glide easy on the shiny rod and make sure this rod is clean and apply just a little bit of thin oil on it and make sure it glides like if it's floating! Second, make sure you DO NOT turn anything unless you know what you're doing. Third, make sure the flat cable that is attached to the KSS-151A is hanging free and is not bend or broken and well connected to the connectors on the PCB's. last, keep us posted I hope this will help you fix the player. All the best, Audiofanatic __________________ Be nice to animals.

29th January 2009, 11:46 PM	#10
Nanook diyAudio Member Join Date: Feb 2004 Location: Chinook Country.Alberta	my suggestions.... were just that, only suggestions. anatech: As I stated, I'm no expert (and I know you are very experienced, so I defer to you). My comment was based on my personal experience with some cd players and the greystations---that's it. Adjusting the bias to the laser focuses it, if I understand correctly. Audiofanatic : Obviously I would never suggest anybody adjust anything if they are unsure. I have no interest in causing a catastrophic failure in anyone's equipment. And of course checking all the mechanical connections and mechanics is always a good (and easy) place to start. jonners : know I would never intentionally steer you or any wrong stew. __________________ stew ☮ -"A sane man in an insane world appears insane."

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