View Single Post
  #2   Report Post  
Posted to sci.electronics.repair
Andy Burns[_13_] Andy Burns[_13_] is offline
external usenet poster
 
Posts: 7,829
Default ADM-3A Wonky Until Warm

Tom Lake wrote:

I have an ADM-3A dumb terminal and when I first turn it on the
display is squashed and the top line is mangled. After five minutes
or so the display looks OK but is a little jumpy. After a few more
minutes, the display is rock-solid and stays that way until the next
time I turn it on cold. If I turn it off back on, the display is
still fine as long as I don't let the ADM cool off first.


Sounds like the sort of issue you could track down by a can of freezer
spray (or inverted can of air duster)