Macintosh IIfx SMD Tantalum and Axial Main PCB Cap Kit - 820-0282-B trs-80-model-4p Installing a jumper between pins

Installing a jumper between pins 1 and 2 connects the reduced write current signal on the 8" interface to J2 pin 2

PIC18F2610*DIP28

(Produced by a 3rd party PCB production house)

PIC18F4423*DIP40

Macintosh IIfx SMD Tantalum and Axial Main PCB Cap Kit - 820-0282-B trs-80-model-4p Installing a jumper between pinsHigh temp, surface mount tantalum, and axial electrolytic cap kit for the Macintosh IIfx main PCB, 820 0282 B Full list and reference info available in our support wiki. Product Notes: There are a few OEM tantalum caps C1, C6, C7, C8 which should not need preemptive replacement like the electrolytic caps. This kit does not include these 4 tantalum caps. Some revisions of this PCB may only have no electrolytic caps. We have an axial only version