moschops
New Member
Greetings Yamaheads,
Recently I had the good fortune to run into a free CR-450. This is my first experience with Yamaha and a search for info for this unit quickly revealed that relatively little is known about it. The consensus seems to be this was an update of the CR400 to better handle 4ohm speakers, and precedes the x20 and x40 families.
My unit was found pretty grimey but cleaned up nicely. Sonically, one channel was a bit touch & go, which I traced to a flakey/dirty relay. After cleaning the relay as well as deoxiting all the controls it is sounding great. Idle current was adjusted to factory spec and the offset was measured at 8mV R, 13mV L. Offset is apparently not adjustable on this receiver.
I'm planning on recapping this one and figured I'd replace the relay at the same time if there is a drop-in replacement available. It is listed in the manual as MX-2P0. Looking at current Omrons, the closest one looks wise is this:
http://www.mouser.com/ProductDetail/Omron-Industrial/MY2N-DC12S/?qs=kyocjfxn8IquIyT93L/LYH/uRNOB644E
Is anyone here familiar enough with the MX-2P0 to be able to confirm the MY2N as a replacement, or point me to something more suitable?
I am also curious if the tuner in this is the same as in the CR600/800 units. It has the same giant dial string pulley. It sure sounds nice. :yes:
Thanks!
Caution: photos below NSFW!
Recently I had the good fortune to run into a free CR-450. This is my first experience with Yamaha and a search for info for this unit quickly revealed that relatively little is known about it. The consensus seems to be this was an update of the CR400 to better handle 4ohm speakers, and precedes the x20 and x40 families.
My unit was found pretty grimey but cleaned up nicely. Sonically, one channel was a bit touch & go, which I traced to a flakey/dirty relay. After cleaning the relay as well as deoxiting all the controls it is sounding great. Idle current was adjusted to factory spec and the offset was measured at 8mV R, 13mV L. Offset is apparently not adjustable on this receiver.
I'm planning on recapping this one and figured I'd replace the relay at the same time if there is a drop-in replacement available. It is listed in the manual as MX-2P0. Looking at current Omrons, the closest one looks wise is this:
http://www.mouser.com/ProductDetail/Omron-Industrial/MY2N-DC12S/?qs=kyocjfxn8IquIyT93L/LYH/uRNOB644E
Is anyone here familiar enough with the MX-2P0 to be able to confirm the MY2N as a replacement, or point me to something more suitable?
I am also curious if the tuner in this is the same as in the CR600/800 units. It has the same giant dial string pulley. It sure sounds nice. :yes:
Thanks!
Caution: photos below NSFW!
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