Marantz CDP not reading

[Brownlow]

Hi,

I've got a question that concerns a Marantz CD52mkII.
It' s a player I got from a friend. It does not recognise any audio disks that I have tried and that was the original problem.

When a disk has loaded and 'play' is pressed, 'ERROR' is displayed briefly and the cdp will do nothing.

I have cleaned the lense (following the advice here) but still the same problem. I have even changed the CDM4/19 transport for a new one and it still displays the same 'ERROR' message.

Obviously, I need to learn more about digital so I thought it would be a good idea to start here, before I got my hands on my long delayed steinmusic cdm12.1 kit.

Once I get the cdp working then I would start tweaking it, but let's begin at the beginning :-)

I would be very grateful if anyone could point me in the right direction.

Cheers.


Brownlow

[li_gangyi]

When you place the CD in and close the tray...I assume it uses a tray...does the CD spin up..or can you hear the laser trying to focus and read the disc??

[r0cket-]

Somebody posted the service manual for the 43, 53, and 63 series a while ago, and you may be able to find something for the 52 as well. If not, the manual for the 53 should give you some info on putting the player into service mode and what the various error codes mean. Might help you in tracking down the problem.

[Brownlow]

Hi Li_gangyi and R0cket,

Thanks for replying to this query. I do have a service manual for this unit albeit a poor PDF. Anyway, the unit does spin and the unit makes a noise as if it is trying to read the disk. Then it doesn't do anything else. The track listing also does not appear on the display.

I don't know if that is of any more help?

Cheers.

Brownlow

[li_gangyi]

Check to see if the laser does work...you might have to open up the unit...be careful of your eyes~!!!

[Brownlow]

Li_Gangyi,

I have put in a new mechanism, this gives the same problem but how would I check this (without putting my eyes in danger)?

Brownlow

[li_gangyi]

Not so sure...I just look and se if there is a distinct read light coming out...please dun look directly at it...it probalby wun burn off ur eyes...but just a precaution...I have messed with lasers much stronger...hehehe

[Mikett]

My original Philips Cd-150 died the same way. I think the laser burned out. I was told that the early CD players had lasers that were always on and eventually burn themselves out. It was a 14 bit machine anyways so I didn't mind too much.

[jam]

Brownlow,

Check the power supply and regulators first.

Regards,
Jam

[fdegrove]

Hi,

I sit with Jam on this.

The PSU or part of it is the cullprit, the laser diode is quite likely fine.

Cheers,