Author Topic: Tektronix 1225 keypad  (Read 630 times)

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Offline FloopyTopic starter

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Tektronix 1225 keypad
« on: April 27, 2019, 09:10:53 pm »
I have a tektronix 1225 logic analyzer. I like it, but the keypad is driving me insane. It seems to have extreme bouncing on the switches. When I press them it will register as pressed twice or three times.
I took the keypad assembly apart and started probing around. See the picture for reference: the first ones are the output to the I/O board and the second one is the switch and the output of the Schmidt trigger along with a good switch.

On top of that I took one apart and the switch jumped out and decided to hide. I think that I should replace these switches. I don't know where to find replacements though. Anyone would know?
« Last Edit: April 27, 2019, 09:27:44 pm by Floopy »
 

Offline FloopyTopic starter

  • Regular Contributor
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  • Posts: 157
  • Country: us
  • I'm going to need another oscilloscope to fix that
Re: Tektronxi 1225 keypad
« Reply #1 on: April 27, 2019, 09:13:18 pm »
I'm currently looking, but finding the right switch on mouser is like trying to find needle in a hay field.
 


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