The AM Forum

Looking for some ideas - -

I have a Dorrough 610 processor that has many IC's that need to be "tickled" ( re-seated) from time to time to allow the processor to work . ( common problem)

What is the best, non intrusive way to clean the IC sockets.  I use the eraser of a pencil to clean up the legs of the IC.

G

Wet a paper towel with some DeOxit, then wipe across the IC pins.  Insert the IC back in and jiggle it a bit to distribute the DeOxit.

I have had to replace IC sockets in really stubborn cases though.

John has the best idea, might take a few tries. DeOxit leaves a light film on the pins, so it won't require re-soaking.

If it's not too hard to get to, check the socket solder joints on the bottom of the board as well. Removal and re-seating can cause these to get goofy over time with similar results.

Gary,
The quality of the socket makes a big difference. The ones with gold sockets are the best (Augat) Deoxit also works on switch and connector contacts. Whenever I change an IC in something I want to keep I install a quality socket. gfz

DeOxIt only on the IC leads will work but you're still asking for trouble later down the road.  DeOxIt will leave residue that attracts dust and other contaminants and then you're back at square one.  This option is a PITA but yank the sockets and solder the IC's in place. No more need for contact cleaner. Problem gone once and for all.

 

Gary,
Never use an eraser on electronic equipment. It removes the plating and makes the problem worse in the long run. Also eraser can cause EDS failures or soft failures that will drive you crazy.
I was talking to one of our Cal Lab guys today and he cleans with alcohol before using deoxit.