11/45 - unjustified progress

[Tony Duell]

[...]

> I powered up everything including the RX02. When I hit load, the drive spun 
> up and came ready. No fault at all. The RL02 and RX02 both boot & work fine.


Oh %deity... You've got the worst sort of fault there, one that 
disappears when you look for it.

Since you've done nothing to really cure it, you will always worry it'll 
come back and bite you sometime.... been there, done that..

[...]

> Perhaps it is cables. I'll be trying again tomorrow to reproduce the problem 
> and hope it reoccurs :\

My guess is a bad connection somewhere that you disturbed when looking at 
the signals in the RL02. Maybe a bad contact at one of the cable 
connecotrs, maybe a dry joint on a chip in the RL02 (althogh to be fair, 
dry joints are not ocmmon in DEC hardware). 

One thing is certain. It's a total waste of time looking for a fault 
that's not (currently) there. Unless you can get it to come back, there's 
little, if anything, you can really do .Cleaning and reseating the 
conenctors may make you feel a little happier, but, equally, it may have 
nothing at all to do with the problem.

-tony