sourcing a CDM1 laser....

[honsten]

Hello all, nice to be back from a very, very long break...(education).
Does any-one here know where I can find a laser for a CDM1 transport. its in a marantz cd80 which still works fine but im just thinking ahead.
P.S. im preferably looking for NOS ones.

[robo]

I have a CDM1MK2 used in CD880J.Ithink your CD80 is CDM1MK2 too.Don't worry about this.They have a long life.

[tubee]

They have a long life

But check lasercurrent: too high is not beneficial. See service manual for right value.

[robo]

lasercurrent is very important for us to make sure the Laser is good or not.

[kraal]

Originally posted by tubee

But check lasercurrent: too high is not beneficial. See service manual for right value.

Where can I find the service manual? PDF will be good!!!

Thanks,

[robo]

you nend to have a check you servo board under the laser.as i know CD80 may use TDA8808T and TDA8809T.
if that is true.then have a look at the photo.in the right side,17pin,18pin are from TDA8808T.find out the resistance which is 12E connets to LO(11-9) ,output to the laser in the left side.the photo is from CD850.but they are the same.when CDP is playing,try to got the voltage of that resistance.you know I=V/R.
then you will get the current.if current is less than 60MA,that your laser is good.

good luck and to be careful

[docfin]

Service manual for CDM-1 available here: http://service-manuals.webs.io/