These rom images were taken from a Sigma Spider PCB

All eproms were 2732's although jumper pads exist on the board to allow use
of 2532's instead.

Filenames are taken from the labels on each eprom. However, there were 2 roms
labelled 9 and 10. one pair labelled in blue, the other in black.

Roms 1 to 4 are located on the main board

SP1.BIN = IC74
SP2.BIN = IC73
SP3.BIN = IC72
SP4.BIN = IC71

Other main IC's are

IC13 = MC6809P
IC14 = HD46821P
IC15 = HD46821P
IC16 = HD46505SP
IC17 = MC68A21P
IC22,23 and 24 = MB14282

Crystal is 11.2 Mhz

Remainder of roms are on daughter board

SP5.BIN = IC33
SP6.BIN = IC25
SP7.BIN = IC24
SP8.BIN = IC23
SP9A.BIN = IC22        (Black)
SP10A.BIN = IC21       (Black)
SP9B.BIN = IC20        (Blue)
SP10B.BIN = IC3        (Blue)

Other main IC's on daughter board

IC1 = HD46802P
IC2 = HD46821P

Crystal = 6 Mhz

It is not known whether the PCB works.

All eproms were read twice, and produced identical images.

Mike Coates, mcoates@dissfulfils.co.uk

