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ASSEMBLE COMPONENTS TO THE PC BOARD

Refer to the top legend on the PC board, install and solder the following diodes and capacitors.

D5 - 1N4001 Diode

(see Figure 2)

C8 - 10

m

F Lytic Capacitor

(see Figure 3A)

C6 - 100pF Discap

(may be marked 101)

C7 - 100pF Discap

(may be marked 101)

D3 - 1N4148 Diode

(see Figure 2)

C5 - 1

m

F Tantalum

(May marked 105)

(see Figure 3B)

C3 - .01

m

F Mylar Capacitor

(May be marked 103)

C4 - .001

m

F Mylar Capacitor

(May be marked 102)

D4 - 1N4001 Diode

(see Figure 2)

D2 - 1N5246 Zener Diode

(see Figure 2)

C2 - 22

m

F Lytic Capacitor

(see Figure 3A)

D1 - 1N4001 Diode

(see Figure 2)

C1 - .1

m

F Discap

(may be marked 104)

When mounting diodes
horizontally, mount as
indicated by the band
(diodes have polarity).

Figure 2

Some capacitors have
polarity markings indicating
the positive (+) or negative
(–) lead. The PC board is
marked to show the lead
positions.

Figure 3A

Band

Polarity Mark

(–)        (+)

(–)            (+)

Figure 3B

Summary of Contents for LP-425K

Page 1: ...LOGIC PULSER KIT MODEL LP 425K Assembly and Instruction Manual Elenco Electronics Inc Copyright 1995 Elenco Electronics Inc REV D Revised 2002 753262...

Page 2: ...or damaged please see instructor or bookstore If you purchased this kit from a distributor catalog etc please contact Elenco Electronics address phone e mail is at the back of this manual for additio...

Page 3: ...ient current for a short period of time This will not harm the components under test since the average current is very small The injected voltage is produced by the transient current flowing through t...

Page 4: ...Drag Foil 1 Solder all components from the copper foil side only Push the soldering iron tip against both the lead and the circuit board foil 2 Apply a small amount of solder to the iron tip This allo...

Page 5: ...10 100kW Resistor brown black yellow gold R6 1 8MW Resistor brown gray green gold R13 2kW Resistor red black red gold R3 1 8MW Resistor brown gray green gold R12 20kW Resistor red black orange gold se...

Page 6: ...5 see Figure 3B C3 01mF Mylar Capacitor May be marked 103 C4 001mF Mylar Capacitor May be marked 102 D4 1N4001 Diode see Figure 2 D2 1N5246 Zener Diode see Figure 2 C2 22mF Lytic Capacitor see Figure...

Page 7: ...e direction shown on the top legend Figure 8 Insert the tabs and terminals into the PC board Solder terminals only Figure 6 6 Flat Tubing 3 8 Q3 2N3906 Transistor see Figure 7 Q4 2N3904 Transistor see...

Page 8: ...case as shown in Figure 11 The front label should be placed toward the back of the indent toward the 3 pins so that the LED and switch holes align with the case holes Insert the 3 pins P1 P2 and P3 i...

Page 9: ...orrect type and is mounted with the flat side as shown on the PC board e Check the soldering and the values of capacitors C1 through C5 f Check the soldering and the values of resistors R1 through R5...

Page 10: ...9 SCHEMATIC DIAGRAM Note All resistors are 5 1 4W IC 74C04 or 4069 Schematic Diagram LP 425...

Page 11: ...and ground for the remaining _________ A 50 50 B 20 80 C 90 10 D 60 40 9 The Sync Input Terminal SYNC Logic Pulser can be used to produce an externally synchronized signal at the ____________ A outpu...

Page 12: ...Elenco Electronics Inc 150 W Carpenter Avenue Wheeling IL 60090 847 541 3800 http www elenco com e mail elenco elenco com...

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