Technically, yes, but it does disable the external SCSI port if you leave the network filter out of the circuit. You can replace it with one from Digikey or you can replace with one from off of another model's dead board. I think Apple used the same model Bourns Network Filter as on the SE, SE/30, Classic I & II and some Mac II series machines, but don't quote me on that. Double check the numbers stamped on the part, along with the shape, number of pins and continuity of each filter to be sure. Use this as a guide for how the circuit is broken down.

It is essentially the same principle operation as with the Bourns filter linked between the internal and external floppy drive ports on these Macs.

73s de Phreakout. :rambo: