Searching for Marantz cd-50 schematics

Wim M · 26th October 2003, 04:49 PM

I'm trying to resurrect an old Marantz cd-50, and then mod it for transport duty. Don't have the schematics yet though. Any kind soul here who could email me a scan of those?

Any modding tips that have proven to be particularly effective in this machine are of course also much appreciated!

Thanks, Wim

guido · 27th October 2003, 10:45 AM

Wim,

Dont have the schematics (looking for CD60 schematics myself), but i got mine working. What is your problem, maybe we can help anyway.

Do you know the testmode? Hold three buttons and then switch the machine on. If you have the correct buttons (don't know the ones for this machine, but i'll have a try at home later) you get into servicemode. From there you can see what works and what does not.

Also opening the machine and having a look at what the transport is doing can reveal something.

Going to use mine to put in my own DAC later. As for upgrading this machine, you could go to non oversampling mode with resistor I/V without too much hassle. Search the net for info.

Greetings,
GuidoB

Wim M · 27th October 2003, 02:41 PM

The first problem was that is skipped like crazy. Cleaning the lens didn't help, so faulting the laser I put it out of commission a year ago, and switched to a DVD player as temporary transport. Never really liked the DVD, and after reading that greasing the mechanism might help, even if it already appears to run smoothly, I gave that a try yesterday. It helped! The thing runs again, I'll give it a few days now to see if it holds up.

The remaining problem is sound quality. I'm using it as a transport into a half-modded Art DI/O, but although the Marantz is more musical and PRaTty than the DVD player, it's not very good at soundstaging and there's too much sibilance. So I thought I'd start off by replacing the 15-year old electrolytics, add some bitumen lining, and remove the entire D/A circuitry. (Though the non-OS idea sounds intriguing, I'll read up on that.)

But I'm not an electronics expert, I really need the schematic to see what's what...

Bricolo · 27th October 2003, 03:43 PM

I'm also looking for this one.

I own a Marantz CD62 that looks very similar.

If anybody knows where I can find the service manual for the CD50, CD62 or CD60...

thanks

Alex

Tazzy · 27th October 2003, 04:08 PM

Got a 9mb sized service manual for the 43, 53 and 63 somewhere on my harddisk

Bricolo · 27th October 2003, 04:32 PM

unfortunately, the CDx3 s are totally different animals

Wim M · 29th October 2003, 11:54 PM

Well, no luck on the board, but after a few calls today I found a place where I could order the CD-50 service manual for 20 euros. It's on its way, so if anyone else needs it I can probably get you some scans later on. (Might take a little while though, they told me it's a big document and I don't know when I have the time to scan it.)

riccardor · 4th November 2003, 11:49 AM

First of all, i'm new here, so Hello, how are you?
I'm write from italy.
I'm looking for the service manual of cd 50 too, here it's impossible find it.
i'm very intersting about "the schematic of the analog part".
If is possible, we could come in a agreement.
Excuse me but my english is bad, i think.
Thanks, Bye
Riccardo

Quote:

Originally posted by Wim M
Well, no luck on the board, but after a few calls today I found a place where I could order the CD-50 service manual for 20 euros. It's on its way, so if anyone else needs it I can probably get you some scans later on. (Might take a little while though, they told me it's a big document and I don't know when I have the time to scan it.)

electropt · 12th December 2004, 08:27 PM

Dear Wim,

Quote:

Originally posted by Wim M
Well, no luck on the board, but after a few calls today I found a place where I could order the CD-50 service manual for 20 euros. It's on its way, so if anyone else needs it I can probably get you some scans later on. (Might take a little while though, they told me it's a big document and I don't know when I have the time to scan it.)

Would you consider emailing me a scan of the service manual? If so, for how much?

Regards,

Hugo

cedus · 12th December 2004, 09:14 PM

For my part I am looking for the CD-54 service manual. If someone has a clue where to find it. Please email me !

Thanks

26th October 2003, 04:49 PM	#1
Wim M diyAudio Member Join Date: Oct 2003 Location: Groningen	Searching for Marantz cd-50 schematics I'm trying to resurrect an old Marantz cd-50, and then mod it for transport duty. Don't have the schematics yet though. Any kind soul here who could email me a scan of those? Any modding tips that have proven to be particularly effective in this machine are of course also much appreciated! Thanks, Wim

27th October 2003, 10:45 AM	#2
guido diyAudio Member Join Date: Mar 2002 Location: diepe zuiden	Wim, Dont have the schematics (looking for CD60 schematics myself), but i got mine working. What is your problem, maybe we can help anyway. Do you know the testmode? Hold three buttons and then switch the machine on. If you have the correct buttons (don't know the ones for this machine, but i'll have a try at home later) you get into servicemode. From there you can see what works and what does not. Also opening the machine and having a look at what the transport is doing can reveal something. Going to use mine to put in my own DAC later. As for upgrading this machine, you could go to non oversampling mode with resistor I/V without too much hassle. Search the net for info. Greetings, GuidoB __________________ GuidoB

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27th October 2003, 02:41 PM	#3
Wim M diyAudio Member Join Date: Oct 2003 Location: Groningen	The first problem was that is skipped like crazy. Cleaning the lens didn't help, so faulting the laser I put it out of commission a year ago, and switched to a DVD player as temporary transport. Never really liked the DVD, and after reading that greasing the mechanism might help, even if it already appears to run smoothly, I gave that a try yesterday. It helped! The thing runs again, I'll give it a few days now to see if it holds up. The remaining problem is sound quality. I'm using it as a transport into a half-modded Art DI/O, but although the Marantz is more musical and PRaTty than the DVD player, it's not very good at soundstaging and there's too much sibilance. So I thought I'd start off by replacing the 15-year old electrolytics, add some bitumen lining, and remove the entire D/A circuitry. (Though the non-OS idea sounds intriguing, I'll read up on that.) But I'm not an electronics expert, I really need the schematic to see what's what...

27th October 2003, 03:43 PM	#4
Bricolo diyAudio Member Join Date: Nov 2002 Location: Grenoble, FR	I'm also looking for this one. I own a Marantz CD62 that looks very similar. If anybody knows where I can find the service manual for the CD50, CD62 or CD60... thanks Alex

27th October 2003, 04:08 PM	#5
Tazzy diyAudio Member Join Date: Jul 2002 Location: Netherlands	Got a 9mb sized service manual for the 43, 53 and 63 somewhere on my harddisk

27th October 2003, 04:32 PM	#6
Bricolo diyAudio Member Join Date: Nov 2002 Location: Grenoble, FR	unfortunately, the CDx3 s are totally different animals

29th October 2003, 11:54 PM	#7
Wim M diyAudio Member Join Date: Oct 2003 Location: Groningen	Well, no luck on the board, but after a few calls today I found a place where I could order the CD-50 service manual for 20 euros. It's on its way, so if anyone else needs it I can probably get you some scans later on. (Might take a little while though, they told me it's a big document and I don't know when I have the time to scan it.)

12th December 2004, 09:14 PM	#10
cedus diyAudio Member Join Date: Oct 2004	For my part I am looking for the CD-54 service manual. If someone has a clue where to find it. Please email me ! Thanks

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