Another SX-64 problem for the group.

[dwight elvey]

>From: "David Vohs" <netsurfer_x1 at fastmailbox.net>

>I have an SX-64 that has (apparently) a serious problem. On powerup it
>shows nothing on the screen (checked the settings and and also hooked up
>an external monitor) along with an occasional crackling sound from the
>speaker. Keypresses are not registered by the machine.
>
>Anyone got any ideas as to what the problem could be?

HI
It is broken some place. Actually, totally dead is easier to trouble
shoot than mostly working. Do the typical checks for power levels,
CPU clock running and dead or open data and address lines.
I suspect you may find one or more bad parts. If you're
expecting an answer like C34 or U26, you have a lot to learn.
Might as well start now.
Dwight