Labels:text | diagram | technical drawing | plan | schematic | parallel | line | black and white OCR: Amiga 3 Button Mouse Converted from a PC PS2 mouse, "digital" CC7XS-CA, with a LogiTech rev A 200472-00 PCB. It uses microswitches, and a more compact photo detector arrangement using a single LED for each pair of axes. ie: one for V & VQ and another for H & HQ components - 2 LEDS instead of the usual 4. To accommodate this the matching photodiode is a dual unit with 3 connections, one common and two signal. Components: 3 Microswitches Zippy DM-03P-S (already there) 1 Hex Inverting Schmitt Trigger 74014 (omos) (cost: about 50 cents) (or any similar logic device) 1 cable, 9-wire with shield drain, 2-metre w/ DB9F. (cost:~$5 with connectors) 1 resistor 390 ohms 1/8 watt. 1 resistor 2k ohms (or 2k2) 1/8 watt 4 resistors 22k ohms, 1/8 watt or less smallest for physical size. CABLE +5V 3 20-07 IC1 14 4μ7 C1 2k R2 HQ 6 0-04 H ¹0-02 VQ -03 V 5 ³0-01 ¹0-06 MO-05 R -09 -08 270 R1 LD2 H LD1 +4+ LQ2 LQ1 4x 22k 0 000 R3 A4 R5 R6 -4.5 MICROSWITCH DETAIL SIDE Dimensions in mm ZIPPY DM-03P-S O 5 D 5 74C14 I 11 13 I 9 I I 7 6 10 spares 6.35 F 12.7 NC NO C PLAN ↑ 5.7 • This switch can replace the tactile push-button switches provided in the C- B0040796 mouse for the A4000. The PCB is wired for both types of switch. AA 12 8 Mouse Buttons NO ONC CO c SW1 NOOONO NOONC A A c CY c9 SW2 SW3 B1 B2 B3 gnd 20- 0/C DB9F shield drain M Bourne
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