trunk/src/mess/machine/victor9kb.c
| r242331 | r242332 | |
|---|
| 166 | 166 | Pins 5,and 6 also have a .0047uF capacitor to GND (forming some sort of LC filter) |
| 167 | 167 | There is another .0047uF capacitor to ground from the connection between 74LS14 pin 1 and the 100 Ohm 5% resistor which connects to pin 4 (forming some sort of RC filter) |
| 168 | 168 | |
| 169 | | |
| 170 | | 22-950 pin 11 (OE?) - 68KOhm 5% resistor - 22-908 pin 5 (HYS) |
| 169 | Exar Custom connections between each other: |
| 170 | ------------------------------------------- |
| 171 | 22-950 pin 11 (OE?) - 68KOhm 5% resistor - 22-908 pin 5 (HYS) |
| 171 | 172 | |
| 173 | Cable connecting J1/CN1 to the Victor: |
| 174 | -------------------------------------- |
| 175 | RJ45 when looking at end of plug (not socket!) |
| 176 | .||||||||. |
| 177 | |87654321| |
| 178 | |__----__| |
| 179 | |__| |
| 180 | |
| 181 | RJ45 pins Wire Color Connection |
| 182 | 1 White J1 pin 1 (VCC) |
| 183 | 2 Yellow J1 pin 2 (GND) |
| 184 | 3 Green J1 pin 3 (GND) |
| 185 | 4 Orange J1 pin 4 (?KBACK?) |
| 186 | 5 Blue J1 pin 5 (?KBRDY?) |
| 187 | 6 Red J1 pin 6 (?KBDATA?) |
| 188 | 7 Black J1 pin 7 (VCC) |
| 189 | 8 shield/bare Keyboard Frame Ground |
| 190 | |
| 191 | |
| 172 | 192 | Key Layout (USA Variant): (the S0x markings appear on the back of the PCB) |
| 173 | 193 | |------------------------------------------------------------------------------------| |
| 174 | 194 | | 22-908-03 22-950-3B XTAL 8021 74LS14 [804x] [EPROM] [???] L CN1=___ |