Error codes for 11/73

[Richard Kurtz]

I'm sure this is a familiar question to many - does
anyone have a list of the two-digit codes displayed on
the PDP11-73 during power-up ? I am resurrecting a
dormant unit which stops at '1' (I have only the CPU
and memory installed in the backplane) I'm not sure if
this is a good or a bad code. Any help would be
appreciated.

Thanks,

David Comley


Dave, the Error Code 1 = cpu error

1.     Make sure that your cpu diag switches are correctly set

2.    Make sure your +5vdc and +12vdc power supply is good

3.    Make sure your eproms do not have any bent pins

J Richardkurtz at prodigy.net