Is there any audible ticking when that happens? A good start would be to
monitor the various voltages from the PSU section and see if any of them
are dropping out.
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On Sat, Apr 30, 2022 at 11:26 AM Harrison <buma7@...> wrote:
Picked up a 2232 scope recently at a Club auction. Pulling it from the
case I found the J9011 connector broken and the eight wires to it
dangling. As was suggested in the Group I hard wired the eight wires
directly to the analog power distribution board. Now I seem to have a
trace on both channels and I can acquire a AC and a DC signal. Plus, probe
compensation can be attained. However, at times the trace spikes and
disappears. After which the power light and the SGL Sweep light blink at a
rate of about once per second and a single digit LED display located at the
front of the analog power distribution board flashes. It seems to have
done this for a little as 30 blinks (seconds) to perhaps 60 blinks
(seconds). After this occurs the trace returns and all seems normal until
the nonoccurence of the cycle. I don't see anything in the operators
manual or the service manual referring to this LED display. Is it a set up
issue, operator error or equipment malfunction? I have pretty much stayed
in the analog (non-store) mode but when I did briefly select the digital
mode I did have the proper displays and selections on the CRT. Can anyone
help me better understand what is going on when the unit acts as I
described. Thank you for your input. 73 de N1FAM
