SWTPC MP-B2 Assembly Instructions Manual Download | Manualshive

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Resistors

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R1

470 ohm 1/4 watt resistor

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R7

6.8K ohm 1/4 watt resistor

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R2

470 ohm 1/4 watt resistor

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R8

6.8K ohm 1/4 watt resistor

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R3

470 ohm 1/4 watt resistor

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R9

1K ohm 1/4 watt resistor

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R4

470 ohm 1/4 watt resistor

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R10

470 ohm 1/4 watt resistor

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R5

470 ohm 1/4 watt resistor

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R11

1K ohm 1/4 watt resistor

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R6

470 ohm 1/4 watt resistor

Capacitors

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C4

0.1 mfd disk capacitor

Integrated Circuits

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IC1

DM8097 / 74367 / 74LS367

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IC5

7402 Quad NOR Gate

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IC2

7805 +5VDC Voltage Regulator

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IC6

74S138 1 of 8 decoder

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IC3

74S138 1 of 8 decoder

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IC7

DM8835 / DS8835

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IC4

7400 Quad NAND Gate

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IC8

DM8835 / DS8835

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Summary of Contents for MP-B2

Page 1: ...x We will not guarantee or repair any kit on which either product has been used Use only the solder supplied with the kit or a 60 40 alloy resin core equivalent Remember all of the connections are soldered on the bottom side of the board only The plated thru holes provide the electrical connection to the top foil Before installing any parts on the circuit board check both sides of the board over c...

Page 2: ... main board GND bus and perpendicular to the mother board as indicated in the component layout drawing It should be oriented with its copper edges against the BOTTOM side of the mother board extending from the first to the seventh main board connection rows Solder the as yet unsoldered connector pins adjacent the strip making sure the strip is soldered in place as well Make sure the strip remains ...

Page 3: ...n dependent regulators on the various boards within the system 12 12 The 12 and 12 points are lines to which an isolated ground 12 200 Ma and 12 200 Ma power supply should be connected The voltages are necessary for generating the currents required by 20 Ma current loop and RS 232 equipment on the serial interfaces INDEX The INDEX is an unused bus and is provided so the pin on each of the male con...

Page 4: ...rial two four addresses are provided for each of the interface positions They are assigned as shown in the memory map figure 1 Interface position 1 8004 8007 is reserved for the terminal control interface The signals carried on the interface information bus are almost identical to those on the system bus UD3 and UD4 are here again User Defined data lines and RS0 and RS1 are Register select lines w...

Page 5: ...the first MP B2 board Modify the second MP B2 mother board by cutting the foil trace going to pin 4 of IC6 right at IC6 Now run a jumper from pin 4 of IC6 to pin 4 of IC5 The MP B2 mother boards themselves are interconnected by paralleling the 50 pin buses together using 18 gauge or heavier stranded wire The wire length should be kept as short as possible and preferably no more than 24 inches in l...

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Page 8: ...watt resistor ___ R10 470 ohm 1 4 watt resistor ___ R5 470 ohm 1 4 watt resistor ___ R11 1K ohm 1 4 watt resistor ___ R6 470 ohm 1 4 watt resistor Capacitors ___ C4 0 1 mfd disk capacitor Integrated Circuits ___ IC1 DM8097 74367 74LS367 ___ IC5 7402 Quad NOR Gate ___ IC2 7805 5VDC Voltage Regulator ___ IC6 74S138 1 of 8 decoder ___ IC3 74S138 1 of 8 decoder ___ IC7 DM8835 DS8835 ___ IC4 7400 Quad ...

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