Comments for page: Sony CDP-101 CD Player

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Posted by Hi Max, March 19, 2012 - 01:17 pm
Yes, the heatsink for the CDP-200 is easier and will definitely increase service life. I am pleased to report that I haven't had any problems with the caps in either the CDP-101 or the CDP-200. I totally agree that attempting to replace the caps in these units, en masse, would be a nightmare!

Let us know how it goes with the CDP-200.

Posted by Max H March 19, 2012 - 12:37 pm
Spent half weekend listening to my newly rebuilt EICO 3070, connected to my Sony CDP-200. Now that I've read this article, I will add the heat sinks - it's a quick project and sure can't hurt.

Have you experienced capacitor failures in the older Sony CD players? I know that Trinitrons of this vintage sometimes need new electrolytics. New capacitors in my CDP-200 would be a nightmare, it's so complex!

Posted by Steve L. August 11, 2011 - 10:28 am
Hi Intilinux,
Thank you for your kind remarks and for posting the links to your mods on the CDP-11s. Those do look like they will do a good job dissipating the heat. [For English-speaking readers, the line of Italian in the 7:21am posting translates as "Here are my mods, applied to a Sony CDP-11s".]

The LEDs you asked about are for disc detection. They illuminate a phototransistor below, when no disc is present. The CDP-101 does have them but they are on a small PCB which is separately mounted over the disc. You can see a small part of it in the photo at the bottom of page-2 of the pdf article. It appears at the bottom edge of the photo, over the disc, about 25% of the way from the lower right corner of the photo.

Posted by Intilinux August 11, 2011 - 07:38 am
Sorry ... just one question! What are those two leds shown in the photo (cdp-11s?

Is not present in the CDP-101 I wrong?

Posted by Intilinux August 11, 2011 - 07:21 am
Great Webpage.

Ecco le mie modifiche applicate ad un sony cdp-11s (european version of sony cdp-200) :



Council to recover the heat sinks from old motherboards, ATX power supply or video cards.


Posted by Steve L. November 18, 2010 - 06:42 am
Hi Alex--Very interesting post. My CDP-101 article only addressed replacing one of the STK6922's (IC204) since it is the hottest. You have shown that the LM1875 can replace IC304 as well. As you point out, the LM1875 is only stable for closed-loop gains of 10 or more and one side of IC304 is well below that. Your solution of adding a series RC from IC304-12 to IC304-9 is an excellent way to solve that issue.

Thank you so much for your contribution!

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