EPICtm Plus Pocket PICmicro Programmer Parts List and Construction Instructions
                        Version 3.1

                EPIC Plus Programmer Parts List

Most of the following parts are available from Radio Shack.  Any additional
parts may be acquired from Jameco Electronics or JDR Microdevices.  The
Radio Shack part number is listed for reference.


Label           Description                     Radio Shack Part No.

R1              240 (270) ohm 1/4W resistor             271-1314
R2*             2.2K 1/4W resistor                      271-1325
R3,4,6,7,12     1K 1/4W resistor                        271-1321
R5,8,10         10K resistor 1/4W resistor              271-1335
R9,11           100 ohm 1/4W resistor                   271-1311
VR1*            5K (4.7K) PCB mount trimmer             271-281
C1**            100uf 50V radial electrolytic capacitor 272-1044
C2              10uf 25V radial electrolytic capacitor  272-1025
C3              .1uf 50V monolythic capacitor           272-109
BR1**           1A 100PIV diode bridge                  276-1152
LED1            red LED                                 276-041
Q1,2            2N3906 (MPS2907) PNP transistor         276-2023
REG1            7805T 5-volt regulator                  276-1770
REG2            LM317T variable regulator               276-1778
U1              7407 open collector buffer IC
J1              25-pin MALE DB25 connector
J2**            DC power jack 2.1mm
J3              10-pin header
B1,2            9-volt battery snaps                    270-325
                14-pin IC socket                        276-1999
                18-pin IC (or ZIF) socket               276-1992
S1              2-pin Battery ON header
                2-pin shorting jumper


* Install R2 or VR1 (recommended), not both.
** C1, BR1 and J2 are not necessary for battery only operation.



                EPIC Plus Programmer Assembly Instructions

1.   Solder in resistors R1 and R3-R12.  It is recommended that trimmer
     VR1 be installed later instead of resistor R2.

2.   Solder in sockets for U1 and U2 if U2 is not a ZIF socket.

3.   Solder in trimmer VR1 if R2 was not used.

4.   Solder in transistors Q1 and Q2.

5.   Solder in capacitors C1-3.  Note the polarity of C1 and C2.  C1
     is not necessary for battery only operation.

6.   Solder in bridge BR1 and J2 if AC operation is desired.

7.   Solder in DB25 connector J1.

8.   Solder in LED1.  Be sure the flat side of the LED is away from
     connector J1.

9.   Solder in the 10-pin header J3.

10.  Solder in Battery ON 2-pin header.  Place the shorting jumper
     across the header before soldering to prevent the pins from
     moving when heated.  A piece of wire may be soldered into the
     header holes if the Battery ON jumper is not desired.  In that
     case the batteries may be connected and disconnected to turn
     the programmer on and off.

11.  Solder in the 9-volt battery snaps B1 and B2.  Make sure the
     polarity noted on the board matches the polarity of the 9-volt
     battery terminals.  Double check this operation as getting one
     or both backwards is not a good thing.

12.  If U2 is a ZIF socket, solder it in now.

13.  Solder REG1 and REG2 into place.  Be sure the larger heat
     sink side is away from connector J1.

Before proceeding, check the almost completed board for the proper voltages.

Adjust trimmer VR1 to about the middle of its range.

Connect an AC adapter or the two 9-volt batteries and Battery ON jumper.  At
this point neither regulator should get hot.  If either one does, immediately
disconnect power and check for improper battery connector polarity or
regulators in backwards.

Measure the output of the variable regulator REG2 and adjust trimmer VR1 to
give about 13.5 volts.  The easiest place to measure the voltage is between
the heatsink tab of the 7805T REG1 (ground) and the end of R1 furthest from
the battery connectors.

Measure the output of the 7805T REG1 for 5 volts.  The best place to measure
is between pin 7 (ground) and pin 14 of the 7407 U1.

If the voltages are not correct, check the polarity of the battery
connections and the regulators.  Also check to see that all of the other
components are properly soldered in place.

14.  Once all of the voltages check out, install U1 7407 in the 14-
     pin socket.  Make sure the end with the notch (pin 1) is away
     from the battery connectors.
