Tecron TEF-10 TDS analyzer- it's still alive!

My guess is that the caps are tantalums that are known to short and the 22 Ohm isolation resistor fried. There may be other tantalums caps that are waiting to smoke. A low esr electrolytic would be a suitable replacement.
I have not encountered one of those in 25? Years. They are pretty sophisticated. I hope you can get the software going. Its a candidate for a usb floppy emulator.