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johnson jt50 mirage schematic

Started by EDWARDEFFECT1, August 12, 2010, 02:00:59 AM

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EDWARDEFFECT1

does anyone know where i can get a copy of a schematic for this amp.i am getting about 86 volts on the power plug connections?120 volts at the plug.not getting any voltage on the ic v+....thanks...ed!!

EDWARDEFFECT1

found the power plug wired wrong! i now have voltage going to the ics.replaced the output chip ,but haven't tested the amp yet...still wish i could find a schematic.anyone have any ideas?...thanks..ed

joecool85

You'll need to contact Johnson Amplification to get the schematic.

http://www.johnson-amp.com/support.htm
Life is what you make it.
Still rockin' the Dean Markley K-20X
thatraymond.com

EDWARDEFFECT1


EDWARDEFFECT1

got the schematic for this amp.i have analog signal coming into the cs4221-ks chip ,but no analog coming out. i just got a replacement chip for it .i will let you know how it plays out....ed!!!!

joecool85

Quote from: EDWARDEFFECT1 on October 30, 2010, 10:00:38 PM
got the schematic for this amp.i have analog signal coming into the cs4221-ks chip ,but no analog coming out. i just got a replacement chip for it .i will let you know how it plays out....ed!!!!

Excellent!  Thanks for keeping us posted, Ed.
Life is what you make it.
Still rockin' the Dean Markley K-20X
thatraymond.com