.:madworm:.'s photos with the keyword: digi 35 cpu

C26 hack

C26 hack

.:madworm:.
05 May 2012 132
Now I can swap it without any trouble.
TL084 quad opamp

TL084 quad opamp

.:madworm:.
05 May 2012 130
Shunt resistors

Shunt resistors

.:madworm:.
05 May 2012 145
The right one is new. I had to remote the old one due to overheating some time ago. I still need to re-calibrate the current control. Now it is off by a couple of %.
DIGI 35 CPU A

DIGI 35 CPU A

.:madworm:.
05 May 2012 154
Looks like a custom job by Motorola.
Power supply investigation

Power supply investigation

.:madworm:.
05 May 2012 156
I'm looking at the analog control loop. Over-current regulation doesn't seem to do what I think it should. At least not when initially powering up.
Interface chips

Interface chips

.:madworm:.
05 May 2012 131
Top: 8-bit latches (74LS273) Bottom: 8-bit DAC (DAC-08CP)