help with a cd 303

faulksy · 17th January 2009, 08:26 AM

after many years of service my trusty cd 303 has finaly stated having a few problems. after it plays through about 2 albums the player itself starts to emit a high pitched hum and it has problems reading the disc as a result of theis the audio the becomes distorted. the other problem it has is that every now and then the player has virtually no output when first turned on but after a while it the output suddenly shoots back up to normal. i'm not sure where i should start looking inside to fix the problems. any help would be much apreciated

Zen Mod · 17th January 2009, 08:42 AM

replace all electrolytics , including notorious ( are they , after all these years of service ? ) 33uF on transport board .

be sure that you replace all with exact values ; some of them are in critical position (RC constant for various logic stages ) , so that way is safer .

if you are not sure what to do - either take it to capable tech , or put it in closet .
venerable beast deserve proper care , not butchering .

good luck

Gabdx1 · 20th January 2009, 07:54 PM

If the problem is not obvious, ( take voltages etc, check laser)

you shoul bring to your local reparator, dont start messing with cd players, some parts are very complicated

17th January 2009, 08:26 AM	#1
faulksy diyAudio Member Join Date: Jul 2008	help with a cd 303 after many years of service my trusty cd 303 has finaly stated having a few problems. after it plays through about 2 albums the player itself starts to emit a high pitched hum and it has problems reading the disc as a result of theis the audio the becomes distorted. the other problem it has is that every now and then the player has virtually no output when first turned on but after a while it the output suddenly shoots back up to normal. i'm not sure where i should start looking inside to fix the problems. any help would be much apreciated

17th January 2009, 08:42 AM	#2
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	replace all electrolytics , including notorious ( are they , after all these years of service ? ) 33uF on transport board . be sure that you replace all with exact values ; some of them are in critical position (RC constant for various logic stages ) , so that way is safer . if you are not sure what to do - either take it to capable tech , or put it in closet . venerable beast deserve proper care , not butchering . good luck __________________ my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; BAF Forum & Gallery;I'm dumb

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20th January 2009, 07:54 PM	#3
Gabdx1 diyAudio Member Join Date: Jan 2009	If the problem is not obvious, ( take voltages etc, check laser) you shoul bring to your local reparator, dont start messing with cd players, some parts are very complicated

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