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Re: Kustom III PA [message #23120 is a reply to message #22802] Sun, 14 June 2015 21:05 Go to previous messageGo to previous message
Autoharp is currently offline  Autoharp
Messages: 14
Registered: April 2015
Location: Warren, MI
Junior Member
Due to a number of issues I've had to let it sit; I've gotten back to it today. Aside from the THUMP from the speakers when the power is turned on, there is nothing from it. It isn't running hot like it was when I started, warm for sure but not hot. I will see if I can set up some sort of a signal tracer or generator. It would really be helpful if I could get a print on the PC5126 preamp board. I did manage to find the PC5144 7-band equalizer and PC5130 Master & Reverb. I did find schematics for the PC5127, PC5128 and PC5129 preamps but they are wrong (although the PC5127 may be useful. The 5127/28/29 all use ICs but the 5126 is all discrete with no ICs, and it has no "bright" switch.

With all the controls up tapping the reverb tank does not make noise however there is make/break static in the speaker when plugging the *input* to the tank.

At least now I have prints for the master and EQ and I'll likely find my problem there, or at least have a better idea where to look.


Autoharp Bill
Beautiful Downtown
Warren, Michigan
USA
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