Adcom GCD 600 D/A converter

80_VETTE · 18th January 2010, 11:42 PM

Hello,
My Adcom GCD 600 is starting to skip and displays static during replay.
The level of static increases the longer it plays. I took it to a repair shop,
they told me the D to A converter is defective and no longer available.
Does anyone know of a source where this item can be obtained? Any help appreciated.
Thanks!

stephensank · 19th January 2010, 01:13 AM

Sounds like the service person knew next to nothing about cd players. You describe classic symptoms of the platter motor developing carbon build-up inside. I can't recall the GCD600 internals off the top of my head, but in the majority of cases, the motor(assuming it's the usual sort of brush motor(Mabuchi, usually), is to give a good solid squirt of silicone spray lubricant into the openings in the bottom of the motor & then run it a while. Cures them at least 80% of the time. Worst case is replacing the motor, which is neither difficult nor expensive(either 'diy' or an honest & experienced tech).

80_VETTE · 20th January 2010, 12:35 AM

I will give it a try this weekend. The right channel only appears to be producing the static.
Thanks for the help!
Les

stephensank · 20th January 2010, 04:48 PM

Oh, if it has static in only one channel, that is a separate issue from the skipping(which may or may not be caused by the platter motor, and might be a laser guide rail lubrication issue or other mechanical issue), and does actually suggest that the TDA1541 dac chip may be going south. I can remember one incidence of seeing this happen with a TDA1541, so I know it to be possible. These chips are easily found on ebay for not too much money.

18th January 2010, 11:42 PM	#1
80_VETTE diyAudio Member Join Date: Jan 2010	Adcom GCD 600 D/A converter Hello, My Adcom GCD 600 is starting to skip and displays static during replay. The level of static increases the longer it plays. I took it to a repair shop, they told me the D to A converter is defective and no longer available. Does anyone know of a source where this item can be obtained? Any help appreciated. Thanks!

20th January 2010, 12:35 AM	#3
80_VETTE diyAudio Member Join Date: Jan 2010	Adcom GCD 600 I will give it a try this weekend. The right channel only appears to be producing the static. Thanks for the help! Les

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19th January 2010, 01:13 AM	#2
stephensank diyAudio Member Join Date: Oct 2006	Sounds like the service person knew next to nothing about cd players. You describe classic symptoms of the platter motor developing carbon build-up inside. I can't recall the GCD600 internals off the top of my head, but in the majority of cases, the motor(assuming it's the usual sort of brush motor(Mabuchi, usually), is to give a good solid squirt of silicone spray lubricant into the openings in the bottom of the motor & then run it a while. Cures them at least 80% of the time. Worst case is replacing the motor, which is neither difficult nor expensive(either 'diy' or an honest & experienced tech).

20th January 2010, 04:48 PM	#4
stephensank diyAudio Member Join Date: Oct 2006	Oh, if it has static in only one channel, that is a separate issue from the skipping(which may or may not be caused by the platter motor, and might be a laser guide rail lubrication issue or other mechanical issue), and does actually suggest that the TDA1541 dac chip may be going south. I can remember one incidence of seeing this happen with a TDA1541, so I know it to be possible. These chips are easily found on ebay for not too much money.

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