Marantz 250 schematic needed

[Burnedfingers]

I am in need of a Marantz 250 schematic. I have a M250 schematic but I find there are a number of differences in them.

I have a number of schematics if there is something you would like in return.

Thanks

 

[torontodude]

Hi there,

I too would like a schematic for the Marantz 250 if anyone can find one.

I just got one and am considering cleaning and re-building it (new output caps, new transistors, maybe a few other things...).

Anyone think it's worth it? I don't know much about this amp...but I just love the blue meters (my poor-man's McIntosh)

Thanks!

 

[Burnedfingers]

I can send you the files I have. Unfortunately they are too large to link to this thread. I sent you an email.

The Marantz 240, 250, and 250M are well worth the effort to rebuild. I consider them to be one of the great classics of the 70's era.

 

[torontodude]

Thanks for those files!

I've joined the two of them, enhanced the image, resampled, sharpened, and was able to highly compress it.

An externally hosted image should be here but it was not working when we last tested it.

Do you know how the 250 differs from the 250B?

Thanks!

P.S., you don't also happen to have the service manual, do you?

Free Image Hosting [xs.to]

 

[rickl]

I too have a Marantz 250 that needs repair.

I also have a PDF from Superscope titled Lesson PA-1 Power Amplifier Troubleshooting.

It shows step by step on how to troubleshoot and fix a power amp. The example is a Marantz 250 .

I'm not sure where I got it and googling didn't find it.

It is almost 2Meg so I can't post it but I can email it to you.

PM me.

rick

 

[torontodude]

Hi Rick,

That would be fantastic!

Looks the the moderator has disabled PMs for this board.

So, if you'd like, you can log in anonymously to my FTP server to upload the file. Once I have it, I'll see if I can dismantle the file and compress it enough to post here for anyone else.

My FTP server is: ftp.worldwideent.ca

***You'll have to put the file in the "incoming" directory***

Let me know when you've uploaded it so I know when it's there.

 

[rickl]

I'll try this tonight. I also have a service and repair manual for the 250 but this should be enough to get started.

 

[torontodude]

Hey...if you've got those too, please upload them as well!

I hate it when companies hoard those materials and charge $25 for a PDF download. I firmly believe that this type of information should be put in the public domain.

If you upload them, I'll make them public...even if it means hosting them myself on my web-server.

 

[rickl]

The service manual is a paper document, not a soft copy

 

[torontodude]

If you'd be willing to mail it to me, I have a professional scanner and I could post it on-line and mail it back to you.

 

[rickl]

I'll dig it out and take a look at it. I may be able to make a copy for you.

rick

 

[rickl]

I scanned in the service manual last night. The 17 jpeg pages are about 36Meg in a WinRAR archive.

I'll try to put it up on yousendit or megaload tonight.

rick

 

[torontodude]

That would be great!!!

You can always put it up on my FTP server as well if it's easier for you (see instruction in previous post).

 

[jaya000]

It is almost 2Meg so I can't post it but I can email it to you.

There r many free servers to upload so that many of us will be benefitted.

 

[torontodude]

There r many free servers to upload so that many of us will be benefitted.

Please see posts number 6, 8, and 10!

 

[rickl]

I couldn't connect to your ftp site.

Try this:
http://download.yousendit.com/2D73DE13176914E5

It should be active for 7 days or 100 downloads.

rick

 

[torontodude]

Thanks very much!!!

I'll try to assemble a PDF or something like that.

Great scan job!

Not sure why you couldn't get onto my FTP site. I checked it and everything's working...did you try to upload to the "incoming" folder?

 

[RobertinMn]

I too have a Marantz 250 that needs repair.

I also have a PDF from Superscope titled Lesson PA-1 Power Amplifier Troubleshooting.

It shows step by step on how to troubleshoot and fix a power amp. The example is a Marantz 250 .

I'm not sure where I got it and googling didn't find it.

It is almost 2Meg so I can't post it but I can email it to you.

PM me.

rick

I would have emailed directly, but I am not allowed as yet, since I hve been mostly eaves dropping.

I live in St. Paul and would love a copy of this as I have a 250 that a "tech" trying to fix the speaker relays ruined. I have an excellent PDF of the repair manual itself.

 

[jdferreira]

I need schematic

Hello

I have the Marantz SR 25 modell and I now that for this model de diagrm system is DC 250 can you send me the pdfs or jpgs or other info. for me repair my amp.

Thanks

dulio.ferreira@gmail.com

 

[U47]

Marantz 250 schematic needed (or service manual)

Does anyone have the service manual for the Marantz 250?
Cheers, Jeff