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Re: unresponsive 492; possible memory issue


 

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

-----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.

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