Author Topic: Keithley 2100 - DSP pin assignment/interconnection  (Read 393 times)

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Offline Arca

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Keithley 2100 - DSP pin assignment/interconnection
« on: March 03, 2021, 05:52:39 pm »
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 :)
 

Offline picburner

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Re: Keithley 2100 - DSP pin assignment/interconnection
« Reply #1 on: March 03, 2021, 06:32:18 pm »
pins 14 and 15 are both VSS, so there is no problem, for the others I don't know.
 

Offline picburner

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Re: Keithley 2100 - DSP pin assignment/interconnection
« Reply #2 on: March 04, 2021, 01:40:06 pm »
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.
 

Offline Arca

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Re: Keithley 2100 - DSP pin assignment/interconnection
« Reply #3 on: March 04, 2021, 05:43:14 pm »
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 !
 

Offline arturmariojr

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Re: Keithley 2100 - DSP pin assignment/interconnection
« Reply #4 on: August 04, 2021, 03:19:02 pm »
For Keithley Service Manual, it is the same as Array M3500A. Here you are the service manual.
Best wishes!
Artur
 


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