>>See attached photos of crossover. WHEN I REMOVED THE TWEETER IT SAID IT HAD BEEN REMANUFACTURED. Could a midrange driver pass audio from raw speaker leads but not from crossover output?
No. There is definitely no midrange signal coming out of the crossover.
GlennW has good advice. I don't know exactly how this crossover is laid out but a couple additional thoughts:
It is quite common for the midrange to be wired out of phase with the tweeter and woofer to smooth the response curve. Note that on the bottom of the schematic, all the drivers are connected to the 'negative' lead. If the tweeter had it's 'negative' terminal connected to that, and the mid is wired out of phase, the mid would appear to have its 'positive' terminal connected to Tweeter-. Or vice versa. So don't worry about that.
Also this board may have been used in various models so some terminals, traces and mounting spots may not be used, or they may be labeled in a way that seems odd.
I would proceed by assuming the speaker is hooked up correctly and there is a bad component. Check the fuse itself (not just the holder), resistors and caps in series with the mid. Referring to the schematic, you could also take a jumper from the input (upper) terminal of the midrange and try it on the upstream (upper on the schematic) side of C2, R2, L2. If you get music at some point you've found the bad component. Keep the volume down when you do this so you don't hit the mid driver too hard.
No. There is definitely no midrange signal coming out of the crossover.
GlennW has good advice. I don't know exactly how this crossover is laid out but a couple additional thoughts:
It is quite common for the midrange to be wired out of phase with the tweeter and woofer to smooth the response curve. Note that on the bottom of the schematic, all the drivers are connected to the 'negative' lead. If the tweeter had it's 'negative' terminal connected to that, and the mid is wired out of phase, the mid would appear to have its 'positive' terminal connected to Tweeter-. Or vice versa. So don't worry about that.
Also this board may have been used in various models so some terminals, traces and mounting spots may not be used, or they may be labeled in a way that seems odd.
I would proceed by assuming the speaker is hooked up correctly and there is a bad component. Check the fuse itself (not just the holder), resistors and caps in series with the mid. Referring to the schematic, you could also take a jumper from the input (upper) terminal of the midrange and try it on the upstream (upper on the schematic) side of C2, R2, L2. If you get music at some point you've found the bad component. Keep the volume down when you do this so you don't hit the mid driver too hard.
