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For test Disk II Interface Card
-``341-0009 Apple Disk II 13 Sector Interface Card ROM P5 (BOOT)``
-``341-0010 Apple Disk II 13 Sector Interface Card ROM P6 (LOGIC)``
-``341-0027 Apple Disk II 16 Sector Interface Card ROM P5 (BOOT)``
-``341-0028 Apple Disk II 16 Sector Interface Card ROM P6 (LOGIC)``
-``341-0027-A Apple Disk II 16 Sector Interface Card ROM P5A 1981 (BOOT)``
-``342-0028-A Apple Disk II 16 Sector Interface Card ROM P6A 1981 (LOGIC)``
+
+341-0009 Apple Disk II 13 Sector Interface Card ROM P5 (BOOT) +341-0010 Apple Disk II 13 Sector Interface Card ROM P6 (LOGIC) +341-0027 Apple Disk II 16 Sector Interface Card ROM P5 (BOOT) +341-0028 Apple Disk II 16 Sector Interface Card ROM P6 (LOGIC) +341-0027-A Apple Disk II 16 Sector Interface Card ROM P5A 1981 (BOOT) +342-0028-A Apple Disk II 16 Sector Interface Card ROM P6A 1981 (LOGIC) +![Alt text](board.jpg) @@ -30,30 +32,32 @@ uPB421 ## Schema: -``------+--------------``
+------+-------------- + PROM | ARDUINO MEGA +------+-------------- + VCC | +5V + a0 | 22 + a1 | 24 + a2 | 26 + a3 | 28 + a4 | 30 + a5 | 27 + a6 | 25 + a7 | 23 + g1 | 31 + g2 | 29 + q0 | 32 + q1 | 34 + q2 | 36 + q3 | 38 + q4 | 39 + q5 | 37 + q6 | 35 + q7 | 33 + GND | GND +------+-------------- +## Board to connect PROM: