Yamaha CR-2020 schematic anyone ? - diyAudio
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Old 10th February 2009, 07:51 PM   #1
Zen Mod is offline Zen Mod  Serbia
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Default Yamaha CR-2020 schematic anyone ?

I downloaded it from Yamaha's site , but schematic is unreadable .......

anyone have it ?

TIA !!
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Old 10th February 2009, 10:51 PM   #2
lineup is offline lineup  Sweden
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this site had one User Manual for Yamaha CR-2020 ( 2.5 MB)
includes one circuit diagram
http://www.retrevo.com/samples/Yamaha-manuals.html

The diagram quality is not very high, unfortunately.
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Old 11th February 2009, 07:19 AM   #3
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bump .....



anyone ?
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Old 13th February 2009, 03:30 AM   #4
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Sorry, I've never seen one. FYI you can download the service manual for the CR-1020 (similar but lower power) here:

http://www.kallhovde.com/yamaha/

While you're at it, don't forget to download the CR-2020 service bulletin that is there.

You could also try asking "merrylander" at AudioKarma.org. He knows vintage Yamaha. He might have a CR-2020 schematic.

Good luck
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Old 13th February 2009, 08:41 AM   #5
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tnx Pierre
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Old 28th April 2009, 12:22 AM   #6
eyoung is offline eyoung  United States
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where is line up???

give us a buzz


Elwood
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Old 12th February 2010, 09:36 PM   #7
Bigun is offline Bigun  Canada
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bump...


I've got one of these things today, broken of course - mainly because the owner tried to fix a minor 'crackle' in the sound. Am thinking of breaking it up to use the parts on some hobby projects as I need the parts more than I need a receiver - unless of course it turns out that this is a 'gem' of a receiver and it would be criminal to break it up...

I'm wondering what there might be that I can reuse - the manual I've downloaded does indeed have a very difficult to read schematic so I can't really be sure what I've got here.

There looks to be one JFET at the front end of the tuner section ?

The amp looks fairly standard LTP, VAS, EF output.
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Old 14th July 2011, 03:33 AM   #8
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I have high quality schematics for this receiver. They can be downloaded form my website at

http://www.vancouver.hm/cr2020.zip

Last edited by telcoman; 14th July 2011 at 03:44 AM.
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Old 14th July 2011, 10:12 AM   #9
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thank you very much !

I needed that for good friend of mine and it will be more than useful , even if he already manage to repair it
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