which messiah 2 chips need to get that track cut....

[spedmetal]

Originally taken from a guide by Charlie_PS2
Messiah 2 appears dead (pcb fault)

If you are certain your install is good yet the Messiah 2 appears dead, then you might have a Messiah 2 from the Actel batch 245 (or earlier); the Messiah 2pcbs have an error whereby a diode that regulates input voltage for the Actel chip is shorted and thus ineffective. Some Actel chip batches (particularly 245 written on the chip) work tightly within a spec 2.6v to 3.0v and hence the Messiah 2 will not function.

The required fix is to be found at cutting a track or drilling out a via as shown in the photograph.

attached is a clip from the guide with a diagram showing the fix.