#VXL30 trouble
17-Aug-93 05:21:19
Sb: #62065-#VXL30 trouble
Fm: Karl F. Kugel 72467,2474
To: Garry Nelson 76470,2663
Just the turbo board alone (with memory) can cause a voltage drop
that's enough to cause problems. Do you have a digital VOM? The
easiest way is to measure the +5 V on the turbo board (I am assuming
that the VXL-30 IS a turbo board). The board should have test pads
or pins to check this, but presummably Microbotics can advise you on
where they are. The CBM power supply has a pot that allows the
voltage level to be adjusted. S plastic screwdriver is nice here.
Since you have to do this with (1) the computer open, (2) the power
supply case off, and (3) the power on, it is easy to cause some
fairly exciting problems. Arcs, clouds of smoke, hair standing on
end, things like that. I suggest that you try the computer with a
different power supply first and see what happens. If it IS related
to the power available, THEN see if you can adjust the original power
supply enough to compensate. You might want to see if you can find a
friendly tech to do this. You WILL want to talk to Microbotics
first.