Hi again all and welcome to my current project.
To make a short story interminably long...
I scored a very dirty complete set of manuals from a B3 (both keyboards, drawbars, perc switches, chorus select box, preset panel and mixing transformer)
Whoever removed it from the original organ just cut the TG loom, chorus loom and power loom (no biggie).
I have no history as to why it was removed. (was this a bad set of manuals or were these working and someone remove them from a unit with a bad TG? I don't know)
As such, I cannot trust much of anything on these keyboards and thus need to go over them completely before risking soldering 91 connections to find they have contact, bussbar or resistor wire problems.
I have already
a) disconnected all Preset wiring from preset connector panel
b) split the two keyboards from each other (cut all the parallel black loom wires between the two.
c) removed all the keys
d) removed the manual endblocks
e) removed the front black faceplate
I FULLY intended to
a) remove the bussbars and clean them using procedures detailed in other threads
b) replace felts
c) fix anything else I find
So now I have a nice bare key assembly. (see pic)
I FOUND (after dissasembly)
a) there was a LOT of dirt and crap under the keybed (cleaned up easily)
b) there is some dormant surface rust under keybed (not that bad, probably spilled beer)
c) upper manual had a crack in the phenolic solder terminal strip (underneath where TG wires connect to resistor wires) (fixed that with epoxy, no problem)
d) the felts actually seem very good
e) no signs of any real water or smoke damage
f) I pulled one bussbar and I could feel some contact pits but the bussbar was rather shiny and seemed to be in overall good shape (flat bussbar, not round)
I am guessing I should gain access to the BACK of the key contact area so I can
go through EVERY DAMN key contact 1 by 1 and ohm out for continuity ?
So... where should I take it from here?
Should I try to dissasmble more and get into the key contact area?
How do I do that? (What is the next peice to remove?)
I'm trying to be patient here and not just start removing every screw I can find.
Any suggestions would be appreciated.
Thanks in advance