Heading for article: Saving the Sony CDP-101 CD Player

Beginning with the story of how the pioneering Sony CD Player helped bring CD quality satellite audio to fruition, we delve into the hidden flaw which is bringing these historic instruments down.

We show you how to add the heatsinks which Sony left out, rescuing the first CD player available in the U.S. The article also covers replacing the failure-prone and rare, focus and tracking servo amps, with commonly available parts. Get it here: 

Thumbnail for Saving the Sony CDP-101 CD Player article

Saving the Sony CD Player article (3MB)

Sony CDP-101 CD Player

Sony CDP-101 still playing after 27-years

Adding a heatsink to the RAM control chip
Replacing the focus and tracking servo amps and adding a heatsink

Adding a heatsink to the RAM control chip

Replacing the focus and tracking servo amps and adding a heatsink


Reader Comments

Posted by Steve L. September 10, 2016 - 02:55 pm
Hi J, Happy to help. The 1-ohm resistors are 1/4W (plain carbon film). The 0.22uF caps are ordinary, ceramic, 25V (or higher). Please let me know how it goes.

Posted by J September 10, 2016 - 02:40 pm
Hello Steve,

Apologies if youve moved on from the repair to this player, but I read your article with great interest and as I have a couple of CDP101s that are exhibiting the servo problems, I thought Id get some parts together and make up your solution. Could I ask what size resistors ( wattage) you used and what type of capacitors, are they ceramic or tantalum and what voltage?

Thanks in advance.

Posted by Steve L. February 22, 2014 - 05:13 pm
Hello Guy, I have sent you an email with a link to the Vintage Solid State forum at Audiokarma.org. I can only suggest that you post a question on AudioKarma forums, asking if anyone can refer you to someone who can restore your CDP-101. Please bear in mind that what is addressed in the article presented here might not address the specific problem you are having, so you need someone who can take on a general repair. Best Wishes.

Posted by Guy Markham February 22, 2014 - 03:14 pm
Where can i get my CDP-101 fixed as shown above ????

Posted by Steve L. July 18, 2013 - 06:49 pm
Hi Brian, Thank you for the follow up. That's a very interesting post that you mentioned. I will be very interested to hear how it goes if you re-grease the slide. While I was doubtful of that fixing the problem, it certainly is a possibility. Could you post a link to the thread, here? I will post the results of my efforts on the CDP-101 here, as soon as I get a chance to work on the player.

Posted by Brian S. July 18, 2013 - 06:09 pm

Sorry to hear your 101 has developed a problems and thank you for the good thoughts. The strange thing is that the first time I started the unit up after hibernation, it played a demanding CD perfectly. It won't do that now, however. I did see a post earlier today on another site. The writer was having the same problem I am experiencing and he said he re-greased the "laser slide." and that solved the problem. I'll take a look later and do some more cleaning. I'll let you know any result. I'd very much enjoy reading a post on the diagnostics on your 101. I hope the problem is easily solved.

All the Best,


1 - 2 - 3 - 4 - 5 - next> - last>>

Add your comments here...