> here's a question: when looking at the five jack
> boards, there's brownish components on them (4 each).
> At first I thought these are just jumpers but then I
> noticed they actually look like ceramic caps with very
> fat legs - and three of them too (legs that is)....
> sooo: what are those?
Murata 3-terminal notch filters. These are to filter the CPU clock noise off the
ribbon cable, in order to pass CE and FCC regulations. And I use them as jumpers
:)
There are also 2ea TDK SMT notch filters on the main CPU board: one for the 8052
+5V, another one for the LEDs.
Paul S.