The only thing that comes to mind us the fact that B+ (28V) is supplied from the Leslie to pin 11 and goes to the Organ. The organ in turn connects pins 5 and 6.
I don¡®t have the circuit diagram of the 330 at hand right now, so I cannot say whether T2 or C1 are involved in the 28V generation circuitry.
OTOH I¡®d judge the risc of damage by connecting
the B3000 as low.
¡ª
Christoph?
toggle quoted message
Show quoted text
Am 18.01.2024 um 05:25 schrieb scott.brand@...:
?So I had a Leslie 330 that came up dead, a couple years back: no sound, motors not running, nothing.? --But, no blown fuses.
I finally had a chance to get into it tonight.? T2 was getting very warm to the touch, very quickly.? So I investigated around that part of the circuit... the culprit turned out to be C1 (250uF, 35VDC).? I replaced it and everything's fine again, running on a combo preamp pedal.
(Incidentally that's the second time I've had a D.O.A. condition on an 11-pin Leslie, due to a faulty C1.)
The thing is, when the fault first appeared two years ago I had been trying the Leslie out on an otherwise untested, new-to-me B3000 (using the built-in 11-pin output).? Unfortunately, the 330 had sat idle for awhile at that point; and I didn't have the sense to test it in a "known good" configuration before I plugged it in to the B3000.? As a result, when the Leslie turned out not to work, I didn't know whether maybe there was a problem with the B3000, or the Leslie had just happened to fail at that point.
So my question: assuming everything on the organ is stock, is there any way the B3000 connection could have caused C1 to give up the ghost?? Or was that fault most likely a coincidence?
Am I asking for trouble if I try the Leslie on the B3000 again?
Thanks in advance for any guidance.
Christoph