marantz cd4000

homertooties · 12th November 2006, 10:56 AM

Hi everybody

Currently have a marantz cd4000 everthing works fine apart from
the display says no disc the disc does not spin just twitches a fraction stops and twitches again

Is this a simple vam1201 replacement or could it be board trouble instead .

The laser has been cleaned once with a dry brush disc and with alcohol on a cotton bud still same....

Appreciate any help as dont want to waste money on laser

jaycee · 12th November 2006, 05:54 PM

That does sound like a dead laser. If the laser cant see the disc, that's what happens as it runs through it's focus calibration stage. You should be able to see the laser lens move as it attempts to focus on the disc.

It might be worth trying to adjust the potentiometer on the laser itself - do this carefully though as over adjusting it can kill a working laser.

homertooties · 12th November 2006, 05:57 PM

Thankyou for a reply guess ill be putting in an order to cpc havent found them cheaper anywhere else....cheers

12th November 2006, 10:56 AM	#1
homertooties diyAudio Member Join Date: Nov 2005 Location: suffolk	marantz cd4000 Hi everybody Currently have a marantz cd4000 everthing works fine apart from the display says no disc the disc does not spin just twitches a fraction stops and twitches again Is this a simple vam1201 replacement or could it be board trouble instead . The laser has been cleaned once with a dry brush disc and with alcohol on a cotton bud still same.... Appreciate any help as dont want to waste money on laser

12th November 2006, 05:57 PM	#3
homertooties diyAudio Member Join Date: Nov 2005 Location: suffolk	marantz Thankyou for a reply guess ill be putting in an order to cpc havent found them cheaper anywhere else....cheers

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12th November 2006, 05:54 PM	#2
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	That does sound like a dead laser. If the laser cant see the disc, that's what happens as it runs through it's focus calibration stage. You should be able to see the laser lens move as it attempts to focus on the disc. It might be worth trying to adjust the potentiometer on the laser itself - do this carefully though as over adjusting it can kill a working laser.

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