Franklin Ace: Troubles and curiousities

["Byron Q. Desnoyers Winmill" <bwinmill@kernigham.sympatico.ca>]

I finally had an opportunity to remove the oxidation from the leads of
each chip on my Franklin Ace.  It still has the same problem as before:
when the power is turned on it simply displays a screen full of the
AppleSoft "delete" character.  Are there any further suggestions as to
how this problem can be isolated?

While cleaning the beast I noticed a few interesting features, and I
would be interested in hearing whether it was shipped that way, or
modified.

Near the front, right edge (grid location: B12, B13) two chips have been
removed from the mainboard and placed in a daughter board.  The daughter
board fills the sockets of the original chips, adds two resistors, a pot,
and a black wedge shaped object.  A wire with clip comes from the wedge
but it isn't attached to anything at the moment.  To the right of the
daughter board (cell B14) pin 1 of the chip was removed from the socket.
A wire is soldered to this pin, and that wire leads to a trace in A10.
(This chip was not even touched in fear of damaging it.)  In cell J14
(near the game i/o socket) resistor RJ5 has been clipped from the
mainboard on one side.  I think the black wedge's clip once lead here.

Towards the left edge and midway from front to back (cell C2) a socket
labeled "S195" contains a 93S00PC.  Is this normal?

Just above the bank of ROM chips is a jumper labelled X3/Y3.  Does anyone
know what this is for?  Should the wire lead to X3 or Y3?

May your stockings be full of SCSI cards and TWGSes.
Byron.