RCA jacks for Yamaha M-60 - diyAudio
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Old 8th September 2007, 05:45 AM   #1
einthed is offline einthed  United States
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Default 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
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Old 28th September 2007, 01:44 PM   #2
gni is offline gni  United States
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Default 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.
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Old 28th September 2007, 02:28 PM   #3
gni is offline gni  United States
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Thank you moderator. . . .for adding the entry to this thread.
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Old 28th September 2007, 02:33 PM   #4
gni is offline gni  United States
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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!
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Old 28th September 2007, 11:02 PM   #5
gni is offline gni  United States
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Schematic of Yamaha M-40/M-60 input.
Looks very similar to M-45
Attached Images
File Type: jpg yamaha input.jpg (96.0 KB, 47 views)
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Old 29th September 2007, 03:32 AM   #6
gni is offline gni  United States
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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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