[comp.sys.xerox] Can't Set Time--0572 MP Code

ari@AI.MIT.EDU (Dave Rosenblitt) (06/01/90)

Whenever I try to set the time (using the Installation
Floppy or Offline Diagnostics Floppy), I get an 0572
error code.  I assume it's a hardware problem with the
board that houses the internal clock.  I'm ready to try
a board swap--does anyone know which board has the
clock?  Thanks in advance.

Dave Rosenblitt

"Thomas_Logan.XSIS"@XEROX.COM (06/02/90)

Dave,

The problems you encounter with setting time are more than likely caused by
a faulty transformer (T1) on the AC Distribution Panel.  This transformer
provides 12vac to the Maintenance Panel, which in turn, converts it to a
5volt supply for powering the MP's logic circuitry.  The IOP also works in
conjunction with the Maintenance Panel to provide the Time-Of-Day Clock.
In nine times out of ten, the transformer breaks down over a period of
time, thus reducing the 12vac output enough to cause this failure mode.
Replacing T1 with a new Dale IPL-2329-25 transformer should solve your
problem.

Good Luck,
	Tom