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einthed 8th September 2007 05:45 AM

RCA jacks for Yamaha M-60
I'm in need of any information as to where I could find replacement RCA jacks for my Yamaha M-60 power amp. The outer cover for one of the Plugs has been lost. Both jacks are on one module and attached to a circuit board, so i need to find the whole unit. Maybe if some has a schematic for this or a similar model i.e. M-70, M-80 I could refine my search. thank you thank you

gni 28th September 2007 01:44 PM

M-60 input RCA Jacks
Couldn't add to thread of similar subject.

I would just wire in new RCA jacks. . . the input has a resistor and
cap. . . just wire them in correctly. . . series resistor and parallel cap.

Make it better than the original.

gni 28th September 2007 02:28 PM

Thank you moderator. . . .for adding the entry to this thread.

gni 28th September 2007 02:33 PM

Maybe we could swap. . . I have two M-45s that should have the
same input resistor and cap. . . I am in the process of swaping
them out.. . have replaced input resistor (carbon) with metal film
precision resistors. . .can post a picture if you like. I will have to
look at what the original resistor was. . . wrote it down somewhere!

gni 28th September 2007 11:02 PM

2 Attachment(s)
Schematic of Yamaha M-40/M-60 input.
Looks very similar to M-45

gni 29th September 2007 03:32 AM

I think the input resistor should be a 1.2kohm NOT 1.3kohm!

I replaced the 1.2kohm(carbon) with a 1kohm and 150ohm in one
amp and 1kohm and 220ohm in the other (1% metal films).

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