Check the CPU's reset line. It's driven by an optocoupler on the power
supply board, as I recall, and the resistor that drives the LED side of the
optocoupler can open up.
-- john KE5FX
toggle quoted message
Show quoted text
-----Original Message-----
From:
[email protected] <
[email protected]> On Behalf Of Adam R. Maxwell
via groups.io
On Mar 1, 2025, at 18:00 , Adam R. Maxwell via groups.io
<amaxwell@...> wrote:
The garbage cleared off the display at some point, but after multiple
power cycles, it will occasionally show a dot that can be repositioned
vertically, so I assume CRT is good.