Solder Problems (PDP-8/m related)

From: Dwight Elvey <elvey_at_hal.com>
Date: Wed Dec 1 16:47:03 1999

ard_at_p850ug1.demon.co.uk (Tony Duell) wrote:
> >
> The nasty bit is that disturbing _anything_ will often 'fix' it. So you
> think the last thing you did (resolded the LEDs, cleaned the backplane,
> whatever) was the fix. And as soon as you get the case on, it's gone again.

Hi
 Use care when soldering LEDs. They are quite sensitive to
soldering temperatures. Until I learned this, I had a lot
of intermittent LEDs. I've always use a heat sink on them
since ( pliers on lead ). Check to see if it is the LED
that is open inside by shunting it with a good one.
Dwight
Received on Wed Dec 01 1999 - 16:47:03 GMT