could this be a ram problem. wasnt the rca 1802 used a lot on
satellites due to its reliability
I think the 1802 is fine, I think the RAM is probably fine too (6116s
have always appeared to be very reliable, rearranging them on the PCB
doens't change the fault).
by the way.. do you know the voltage / power requirements for an
original microwriter.. i' havn't powered it up since i bought it!!
What I normally do with something like this is to disconnect the battery
and conenct a bench supply set to the same nominal voltage as the battery
(e.g. 4.8V for a 4 NiCd pack) in place of it.
I ahve no idea what the adapter for the original microwriter was (is this
the one with the VF display?). Mine is a later model with an LCD display,
it has 4 NiCd cells in series inside and a very simple (diode + resistor)
charger circuit. I would guess the adapter was a nominal 6V thing, rather
more off-load.
-tony