I bought some EQs low. Now I am looking for the schematics.
It is the MITSUBISHI QUAD EIGHT 4-BAND EQ 82041 and Trident TSM EQ CB9132.
Does anyone who has used ICs for Trident CB9132 EQ?
I have the schematics for the CB9132, found them while looking for the line/mic module of the same console. PM me if you're still interested. I am still looking for the 82041 schematics though, any luck with these so far?
Hey, I just bought a pair of those eq's too. I googled around and found this...
We maintain a console master book from a Mitsubishi Filmstar console that has docs on the 3-Band Semi-Parametric eq. The pinout should be the same for all similar Mitsubishi era eqs, but without additional information I recommend checking everything twice......err,... or maybe three times.
Pin# / Signal
8b / -18vdc
9b / +18vdc
10b / Audio Common
11a/b / eq out
13a/b / eq in -
15a/b / eq in+
Probe the connector, check the pcb for correct components at each pin and be very careful before connecting power.
I haven't tried hooking mine up yet...did you ever get a hold of the actual schematics for the 82041?
I bought four 82041 Westar EQ modules on eBay and racked them up successfully. The pinout above is correct. I have crude (photographed) schematics for these modules if anyone is on the hunt. The ebay seller will likely include them with the purchase - that's where I got them.
The only thing I added was a circuit to change the output from unbalanced to balanced using a THAT1646 IC. See the schematic attached. Also I found connectors that fit the modules headers. Also attached is my routing for the circuit, not very pretty, but works fine. I put a 47uF between the output of the card and the THAT1646 circuit to filter out potential DC. Also those two 10uF caps are Non-polarized.
Here's a link to buy them: 09222326825 HARTING | Mouser (I bent the pins over to make it 'right-angle mounted', which I couldn't find anywhere.