The end of the Plug and Play MIMA, and MIMA2
MIMA introduction
MIMA Operation
MIMA Users Page
Installing MIMA with The Plug and Play harness
Installing MIMA with the pin replacement harness
The MIMA Joystick
The MIMA Display
The FAS system
Cable impedance problem with last MIMA systems.
Installing the resistor
Beefing up the ground path
Why the cable effects the pulse
The real pulses
Learning to drive with MIMA
Hardwired Harness
Theory of Operation

Beefing up the ground path

Beefing up the ground path
beefing up the grounds

As described above, the db-25 ground wire on pin 3, is a 28 gauge wire, so we added some jumpers to the distribution board as well as the MCM board to decrease the resistance of this important circuit.
Seems to make a very positive improvement in the signal integrity.