QuickStepper

Parts List with Assembly Notes

Qty     Type        Part    Spec            Form
------- ----------- ------- --------------- -----------------------
1       uC          IC2     PIC '877        DIP
                              
1       socket      IC2s    40 PIN 0.6"     DIP
                              
12      transistor  Q1-Q12  MOSFET N 60V 5A 2-7B1B

Populate the FETs Q1 – 12 with the tab above the white bar.

                              
1       transistor  Q13     NPN BJT         TO-92
                            600ma 40V

Installed with the flat side as indicated on the PCB

                              
1       capacitor   C1      1000u 50V       5mm lead spacing
                              
1       capacitor   C2      10u 25V         2mm lead spacing

The polarized capacitors with the plus sign on the same side as the plus sign silkscreened on the board.

                              
2       capacitor   C3,C5   22p 100V        6.35mm lead spacing

Little dull brown disk

                              
1       capacitor   C4      0u1 50V         5mm lead spacing

Really little, shiny brown disk

 
                              
13      resistor    R1-12,  1k 5%           1/4W
                    R17     brown-black-red-gold
                              
1       resistor    R13     10k 5%          1/4W
                            brown-black-orange-gold
                              
2       resistor    R14,R15 330 5%          1/4W
                            orange-orange-brown-gold
                              
1       resistor    R16     5.1R 5%         5W

WIREWOUND Additional units included to tune certain stepper motors. Ignore extras.

                              
1       osc         XT1     4 MHz           HC-49

                              
14      diode       D1-12,  800V max        DO41
                    D13,D14

The diodes are installed with the band above the white band,

                              
1       LED         LED1    clear, 3mm      T1

Place the longer lead of LED1 in the hole marked with a plus sign.

                              
5       terminal    X1-3,   3pin terminal   0.2" SIP screw
                    Y1-3,   strip
                    Z1-3

The screw terminal blocks feature a dovtailed protrusion on one side and a dovetailed slot on the other; assemble five 3-terminal blocks together for the connections to the motor

                              
1       header      SV6     pin header      0.1" SIP

                              
1       connector   SV8     HD, M 4pin Pwr  0.2" SIP

The connectors SV9 and SV10 are for future expansion and for in-circuit programming; they are not necessary for normal assembly.+

file: /Techref/io/quickstep.htm, 3KB, , updated: 2004/7/11 21:40, local time: 2024/12/21 22:11, owner: JMN-EFP-786,

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