Need pictures of EH Bass Micro Synth PCBs

Pas · #1 03-12-2009, 02:34 PM

I recetnly picked up a vintage EH Bass MicroSynth (the old style that still had the 120v plug and internal transformer). The problem is that it is in VERY rough shape. There were NO wires on the interior whatsoever and the exterior is prity beat up. None the less I set off on the task of repair. I figured out the wiring between the two boards and the power prity easily but I am having trouble with were to hook up the in/out jacks and foot switch. If someone could post up a good pic of which wires solder were I would greatly appreciate it.

OrionManMatt · #2 03-12-2009, 02:48 PM

PM sent.

Pas · #3 03-12-2009, 03:52 PM

Thanks a million! I got all the wires hooked up...worked great for about 20 seconds...then the power light started wavering on/off...then the magic white smoke was released from the 4558 in the power section. Looks like I have some more work to do

Couvy · #4 03-12-2009, 09:51 PM

I'm pretty sure that I have a schematic around here somewhere, if you need that

OrionManMatt · #5 03-12-2009, 10:24 PM

Yikes. Well, the good news is you don't have to use a 4558 when you replace that opamp, just check the current draws.