PDP8E 3.75V on Omnibus issue
mail.nickallen at gmail.com
Tue Feb 6 13:12:30 CST 2018
Hey everyone, thanks for always serving as a great sounding board and
source of advice!
I have an issue with a PDP8E which has an issue with the power supply.
The -15V, 15V, and 5V are good, and my Bus Loads board is good, but for
some reason the power supply is bringing down the 3.75V signal from the
bus loads to 0V (this is the DC VOLTS OK grey wire from the power supply).
I'm having troubles finding the schematics of the PDP8e power supply,
also any suggestions on what could be pulling the 3.75V to 0V (tested
multiple Omnibus backplanes, and bus load boards, so I'm fairly certain
it's the PSU).
All help is MUCH appreciated, thanks!
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