July 14, 2013 - 12:20 pm|
|Hi Brian, I appreciate your kind message. To answer your question: yes, the grease used in the drawer mechanics has been known to get stiff with age. Ideally, the drawer assembly should be cleaned and regreased, though some half-way measures could do a lot of good.|
Since the unit was under water, I would definitely clean the laser pickup lens. Depending on the total running time that the unit has seen, it is not necessarily the case that the servo amps have to be replaced. The IC204 amp could sure use a larger heatsink, though. It need not be as intricate as the one described in the article, to help a lot. Finding someone to do the adjustments on the tracking related circuits might very well fix the tracking issues.
Congratulations on digging out this historic machine. It's wonderful that it still works, albeit with quirks. Bringing it up to full performance would be great. Keep us posted on how it goes.
July 14, 2013 - 11:14 am|
|Finding your page inspired me to dig out my old 101--I bought mine the week it arrived in my local audio store--it was the only one they received from Sony and they were hoping to demo it. This unit eventually developed skipping problems, so I boxed it up for 20 years. It was soaked in a basement flood, but i could not bear to junk it. I brought it up yesterday and opened it up. Apart from a little rust on the inside bottom of the case, due to water, it looked fine. I powered it up. The CD door refused to budge. I tried several times, but it seemed to be locked up. After about 10 minutes, the arm that holds the CDs moved and the door opened. I grabbed the very first CD I ever bought (I got it a month or two before the player) and popped it in--wow! I had forgotten how good this old girl sounded! Tracking is still a bit 'iffy' with skips, etc. and the door hangs sometimes, but things improve as the unit warms up. I assume I will need to replace the servo amps to get full service restored (which is beyond my capabilities, but I'll see if I can find someone in the area who can help me). Are there any parts I should grease in order to ensure drawer performance, etc.? I'm listening to the 101 right now and, if it wasn't for your page, it would still be sitting in the basement. Thank you! |
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.
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!
August 11, 2011 - 10:28 am|
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.
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?