25 Mar
2009
25 Mar
'09
1:28 p.m.
Afraid I can't tell. The whole screen is kinda
jumpy. Also, if I
listen, I can hear a sort of really fast ticking, almost continuous...
maybe more of a buzzing. If I hit the reset button on the back, the
terminal emits a loud high-pitched beep and returns to displaying the
same garbage.
Have you checked that the power supply rails are the right voltage and
stale/ripple-free? I think my next move would be to stick a 'scope on the
+5V rail, and any othes I could indentify.
-tony