Keithley 2100 - DSP pin assignment/interconnection

[Arca]

Hello all,

I got a "broken" Keithley 2100.

It had error +599 that I solved by replacing the 1000uF capacitors. Now it looks to run fine, Self Test is OK.

I have a question about the DSP. It seems that there is some "bridges" between pins on the ones I have.


Is it normal ? Could you show me picture of your DSP to compare ?

Thx

[picburner]

pins 14 and 15 are both VSS, so there is no problem, for the others I don't know.

[picburner]

This pic is taken from here, the instrument is one of the Keithley 2100 clones.
With a little imagination, since the pic is poorly defined, it would seem that the pins are short-circuited here too.

[Arca]

Hello,

Thanks a lot for your answer !

So yes you are right, it seems that it's normal.

I admit that I was a little bit stressed because my soldering iron fell inside... 😅

So thank you again !

[arturmariojr]

For Keithley Service Manual, it is the same as Array M3500A. Here you are the service manual.
Best wishes!
Artur