trunk/src/mess/machine/victor9kb.c
| r242328 | r242329 | |
|---|
| 16 | 16 | |
| 17 | 17 | Marking on PCB back: A65-02307-201D 007 |
| 18 | 18 | |
| 19 | | |------------------------------------------------------------------------------------= |
| 20 | | | 22-908-03 22-950-3B . XTAL 8021 74LS14 [804x] [EPROM] [???] CN1=___ |
| 19 | |------------------------------------------------------------------------------------| |
| 20 | | 22-908-03 22-950-3B XTAL 8021 74LS14 [804x] [EPROM] [???] L CN1=___ |
| 21 | 21 | | X X X X X X X X X X X | |
| 22 | 22 | | X X X X X X X X X X X X X X X X X X X X X | |
| 23 | 23 | | X X X X X X X X X X X X X X X X X X X X X | |
| r242328 | r242329 | |
|---|
| 29 | 29 | |
| 30 | 30 | Notes: |
| 31 | 31 | All IC's shown. |
| 32 | | XTAL - 3.579545Mhz Crystal, marked "48-300-010" (front) and "3.579545Mhz" (back) |
| 33 | | 8021 - Intel 8021 MCU, marked: "iP8021 2137 // 8227 // 20-8021-139 // (C) INTEL 77" |
| 34 | | 22-908-03 - Exar Semiconductor XR22-008-03 keyboard matrix capacitive readout latch |
| 35 | | 22-950-3B - Exar Semiconductor XR22-050-3B keyboard matrix row driver with 4 to 12 decoder/demultiplexer |
| 36 | | CN1 - keyboard data connector (SIP, 7 pins, right angle) |
| 32 | XTAL - 3.579545Mhz Crystal, marked "48-300-010" (front of xtal) and "3.579545Mhz" (back of xtal) |
| 33 | 74LS14 - Z4 - 74LS14 Hex inverter with Schmitt-trigger inputs (0.8v hysteresis) |
| 34 | 8021 - Z3 - Intel 8021 MCU, marked: "P8021 2137 // 8227 // 20-8021-139 // (C) INTEL 77" |
| 35 | 22-908-03 - Z2 - Exar Semiconductor XR22-008-03 keyboard matrix capacitive readout latch |
| 36 | 22-950-3B - Z1 - Exar Semiconductor XR22-050-3B keyboard matrix row driver with 4 to 12 decoder/demultiplexer |
| 37 | CN1 or J1 - J1 - keyboard data connector (SIP, 7 pins, right angle) |
| 38 | L - L1 & L2 - mil-spec 22uH 10% inductors (double wide silver band(mil spec), red(2) red(2) black(x1uH) silver(10%)) |
| 37 | 39 | |
| 38 | 40 | [804x] - unpopulated space for a 40 pin 804x or 803x MCU |
| 39 | 41 | [EPROM] - unpopulated space for an EPROM, if a ROMless 803x MCU was used |
| r242328 | r242329 | |
|---|
| 41 | 43 | X - capacitive sensor pad for one key |
| 42 | 44 | marking - PCB trace marking: "KTC // A65-02307-007 // PCB 201 D" |
| 43 | 45 | |
| 46 | 74LS14 (Hex inverter with Schmitt-trigger inputs (0.8v hysteresis)) |
| 47 | ------------------ |
| 48 | __ __ |
| 49 | 1A 1 |* \_/ | 14 VCC |
| 50 | /1Y 2 | | 13 6A |
| 51 | 2A 3 | | 12 /6Y |
| 52 | /2Y 4 | | 11 5A |
| 53 | 3A 5 | 74LS14| 10 /5Y |
| 54 | /3Y 6 | | 9 4A |
| 55 | GND 7 |_______| 8 /4Y |
| 44 | 56 | |
| 57 | |
| 58 | P8021 Pinout |
| 59 | ------------------ |
| 60 | _____ _____ |
| 61 | P22 1 |* \_/ | 28 VCC |
| 62 | P23 2 | | 27 P21 |
| 63 | PROG 3 | | 26 P20 |
| 64 | P00 4 | | 25 P17 |
| 65 | P01 5 | P8021 | 24 P16 |
| 66 | P02 6 | | 23 P15 |
| 67 | P03 7 | | 22 P14 |
| 68 | P04 8 | | 21 P13 |
| 69 | P05 9 | | 20 P12 |
| 70 | P06 10 | | 19 P11 |
| 71 | P07 11 | | 18 P10 |
| 72 | ALE 12 | | 17 RESET |
| 73 | T1 13 | | 16 XTAL 2 |
| 74 | VSS 14 |_____________| 15 XTAL 1 |
| 75 | |
| 76 | |
| 77 | XR22-008-03 Pinout (AKA XR22-908-03) |
| 78 | ------------------ |
| 79 | _____ _____ |
| 80 | D0 1 |* \_/ | 20 Vcc |
| 81 | D1 2 | | 19 _CLR |
| 82 | D2 3 | | 18 Q0 |
| 83 | D3 4 | | 17 Q1 |
| 84 | HYS 5 | 22-008-03 | 16 Q2 |
| 85 | D4 6 | | 15 Q3 |
| 86 | D5 7 | | 14 Q4 |
| 87 | D6 8 | | 13 Q5 |
| 88 | D7 9 | | 12 Q6 |
| 89 | GND 10 |_____________| 11 Q7 |
| 90 | |
| 91 | |
| 92 | XR22-050-3B Pinout (AKA XR22-950-3B) |
| 93 | ------------------ |
| 94 | _____ _____ |
| 95 | Y8 1 |* \_/ | 20 Vcc |
| 96 | Y9 2 | | 19 Y7 |
| 97 | Y10 3 | | 18 Y6 |
| 98 | Y11 4 | | 17 Y5 |
| 99 | _STB 5 | 22-050-3B | 16 Y4 |
| 100 | A0 6 | | 15 Y3 |
| 101 | A1 7 | | 14 Y2 |
| 102 | A2 8 | | 13 Y1 |
| 103 | A3 9 | | 12 Y0 |
| 104 | GND 10 |_____________| 11 OE? |
| 105 | |
| 106 | i8021 to elsewhere connections |
| 107 | ------------------------------ |
| 108 | 8021 pin - 22-xxx pin |
| 109 | P22 1 - 74LS14 pin 5 (3A) AND (804x chip pin 37, P26) |
| 110 | P23 2 - 74LS14 pin 11 (5A) AND (804x chip pin 38, P27) |
| 111 | PROG 3 - (804x chip pin 25, PROG) |
| 112 | P00 4 - N/C |
| 113 | P01 5 - N/C |
| 114 | P02 6 - N/C |
| 115 | P03 7 - N/C |
| 116 | P04 8 - N/C |
| 117 | P05 9 - N/C |
| 118 | P06 10 - N/C |
| 119 | P07 11 - N/C |
| 120 | ALE 12 - N/C |
| 121 | T1 13 - 74LS14 pin 2 (/1Y) AND (804x chip pin 39, T1) |
| 122 | VSS 14 - GND |
| 123 | XTAL1 15 - XTAL |
| 124 | XTAL2 16 - XTAL |
| 125 | RESET 17 - 10uf capacitor - VCC |
| 126 | P10 18 - 22-908 pin 18 (Q0) AND 22-950 pin 6 (A0) AND (804x chip pin 27, P10) |
| 127 | P11 19 - 22-908 pin 17 (Q1) AND 22-950 pin 7 (A1) AND (804x chip pin 28, P11) |
| 128 | P12 20 - 22-908 pin 16 (Q2) AND 22-950 pin 8 (A2) AND (804x chip pin 29, P12) |
| 129 | P13 21 - 22-908 pin 15 (Q3) AND 22-950 pin 9 (A3) AND (804x chip pin 30, P13) |
| 130 | P14 22 - 22-908 pin 14 (Q4) AND (804x chip pin 31, P14) |
| 131 | P15 23 - 22-908 pin 13 (Q5) AND (804x chip pin 32, P15) |
| 132 | P16 24 - 22-908 pin 12 (Q6) AND (804x chip pin 33, P16) |
| 133 | P17 25 - 22-908 pin 11 (Q7) AND (804x chip pin 34, P17) |
| 134 | P20 26 - 22-908 pin 19 (/CLR) AND 22-950 pin 5 (/STB) AND (804x chip pin 35, P24) |
| 135 | P21 27 - 74LS14 pin 9 (4A) AND (804x chip pin 36, P25) |
| 136 | VCC 28 - VCC |
| 137 | |
| 138 | 74LS14 to elsewhere connections |
| 139 | ------------------------------- |
| 140 | 1A 1 - 100 Ohm resistor - J1 pin 4 |
| 141 | /1Y 2 - 8021 pin 13 (T1) |
| 142 | 2A 3 - 74LS14 pin 8 |
| 143 | /2Y 4 - 22uH 10% inductor 'L1' - J1 pin 5 |
| 144 | 3A 5 - 8021 pin 1 (P22) |
| 145 | /3Y 6 - many keyboard contact pads (!) |
| 146 | GND 7 - GND |
| 147 | /4Y 8 - 74LS14 pin 3 |
| 148 | 4A 9 - 8021 pin 27 (P21) |
| 149 | /5Y 10 - 74LS14 pin 13 |
| 150 | 5A 11 - 8021 pin 2 (P23) |
| 151 | /6Y 12 - 22uH 10% inductor 'L2' - J1 pin 6 |
| 152 | 6A 13 - 74LS14 pin 10 |
| 153 | VCC 14 - VCC |
| 154 | |
| 155 | |
| 156 | J1 (aka CN1) connections: |
| 157 | ------------------------- |
| 158 | 1 - VCC |
| 159 | 2 - GND |
| 160 | 3 - GND |
| 161 | 4 - 100 Ohm 5% resistor -> 74LS14 pin 1 -> inverted 74LS14 pin 2 -> inverted 8021 pin 13 (T1) |
| 162 | 5 - 22uH 10% inductor 'L1' <- 74LS14 pin 4 <- inverted 74LS14 pin 3 <- inverted 74LS14 pin 8 <- 74LS14 pin 9 <- 8021 pin 27 (P21) |
| 163 | 6 - 22uH 10% inductor 'L2' <- 74LS14 pin 12 <- inverted 74LS14 pin 13 <- inverted 74LS14 pin 10 <- 74LS14 pin 11 <- 8021 pin 2 (P23) |
| 164 | 7 - VCC |
| 165 | |
| 166 | Pins 5,and 6 also have a .0047uF capacitor to GND (forming some sort of LC filter) |
| 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 | |
| 169 | |
| 170 | 22-950 pin 11 (OE?) - 68KOhm 5% resistor - 22-908 pin 5 (HYS) |
| 171 | |
| 45 | 172 | Key Layout (USA Variant): (the S0x markings appear on the back of the PCB) |
| 46 | | |------------------------------------------------------------------------------------= |
| 47 | | | 22-908-03 22-950-3B . XTAL 8021 74LS14 [804x] [EPROM] [???] CN1=___ |
| 48 | | | 01 02 03 04 05 06 07 08 09 10 11 | <- the leftmost X is S01 |
| 173 | |------------------------------------------------------------------------------------| |
| 174 | | 22-908-03 22-950-3B XTAL 8021 74LS14 [804x] [EPROM] [???] L CN1=___ |
| 175 | | 01 02 03 04 05 06 07 08 09 10 11 | |
| 49 | 176 | | 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | |
| 50 | 177 | | 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | |
| 51 | 178 | | 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | |
| 52 | 179 | | 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | |
| 53 | | | 95 96 marking 97 98 99 100 101 102 103 104| <- the rightmost X is S104 |
| 180 | | 95 96 marking 97 98 99 100 101 102 103 104| |
| 54 | 181 | |----------------------------------------------------------------------------------------| |
| 55 | 182 | |
| 56 | 183 | key - Shifted(top)/Unshifted(bottom)/Alt(front) (if no slashes in description assume key has just one symbol on it) |