Labels:text | diagram | plan | sketch | technical drawing | schematic | black and white OCR: Amiga I/O Expansion Board 16 A11 13 B B 7 NEWCIA Y3 Y3 YZ 10 ACIAS 14 Y2 VIA1 11 Y1 Y₁ J3 4 VIAO YO G 15 G YO 12 OLDCIA U6 1/2 74F139 CIA B ORIGINALLY IN SOCKET P1 AT UGN 1,40 40 CNT CA1 CA1 PAO SP PAO SP 39 PAO CAZ PAO CAZ 38 3.6864 MHZ PA1 RSO PAL PA1 RSO PA1 RSO PAZ RS1 PAZ R$1 PAZ RS1 PAZ 10 PA3 RS2 PA3 PA3 RS2 PAR PA3 RS2 RS3 11 RS3 PA4 34 PA4 RS3 24 PA4 PAS RES 34 RES PAS RES 34 RES PAS PAS RES PAS 01 16 PAG DO PAS RES 12 15 PA6 DU PA6 DO DO 18 17 PAZ PAT PAT D1 D1 D1 D1 9 PAZ 10 PAT 20 19 10 PRO 10 PBO D2 PBO PBO 0000 D2 PBO D30 11 PB1 PB1 11 PRI PB1 D3 D3 12 PB1 D3 D3 15 16 17 FLAG FLAG 18 R1 18 18 CB1 CB1 19, 19 TOD R/WH TOD R/W 40 21 20 20] 201 Vec IRQ IRQ IRQ IRQ DUAL-ROM U1 6526 U2 65022 U3 65022 VIAO VIA1 CONNECTOR (8520) CIA +5VQ P2 P3 DIP CONNECTOR CAL3 CA2.3 O- PA0.3 O- 74L ...
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