PDP-11/70 debugging advice

[Fritz Mueller]

> Yeah.  I want to get the fans installed and then go triple-check all the power signals and get the voltages dialed in nicely.  But then things come out on extenders :).

Yup -- I'm surprised how picky my '45 is about +5 undervolt; it really seems happiest with trimmed up to about 5.1 at the backplane.

Looks like E106 on the RAC (M8123) might be a good place to start (drawing RACA, lower left.)

    cheers,
      --FritzM.