background image

r

Install  the  power  cord  as  shown  in  Figure  9.  Solder  the  red  wire  to  hole
marked “+” and the green wire to the hole marked “–” (see Figure 9).

r

Install the probe tip as shown in Figure 10. Using the 1 1/2” wire, strip 1/4”
of insulation off of both ends. Solder one end to point P on the PC board.
Solder the other end of the wire to the probe tip groove.

r

Install the two labels to the case, as shown in Figure 11. Be careful to place
the labels on neatly and correctly. Peel the backing off to expose the glue.

r

Place the PC board assembly into the case as shown in Figure 11. Use two
#4 screws to hold the case together. 

Do not over-tighten

or the holes may

strip out.

r

Cut a 13/16” piece of red shrink tubing and slide it over the probe tip until
it  touches  the  plastic  case.  Shrink  the  tubing  by  heating  it  with  your
soldering  iron.  Be  sure  the  soldering  iron  does  not  contact  the  tubing  or
plastic case.

This completes the assembly procedure. Your Logic Probe is now ready for
testing.

-8-

Figure 11

Top label

Top case

Assembled

PC board

Bottom case

Bottom label

#4 x 5/8” Screw

#4 x 5/8” Screw

Figure 9

Figure 10

Green wire

(to – hole)

Red wire

(to + hole)

Red shrink tubing

Summary of Contents for LP-525K

Page 1: ...ction Manual Copyright 2013 1994 by Elenco Electronics Inc All rights reserved Revised 2013 REV J 753241 No part of this book shall be reproduced by any means electronic photocopying or otherwise with...

Page 2: ...R24 200 5 1 4W red black brown gold 132000 r 1 R16 2k 5 1 4W red black red gold 142000 r 1 R4 4 7k 5 1 4W yellow violet red gold 144700 r 1 R14 5 1k 5 1 4W green brown red gold 145100 r 1 R11 15k 5 1...

Page 3: ...gative lead is indicated on the packaging by a stripe with minus signs and possibly arrowheads Also the negative lead of a radial electrolytic is shorter than the positive one Polarity marking BAND 1...

Page 4: ...ted by pulses as short as 25 nanoseconds a negative pulse is applied to the input pin 11 of the pulse stretcher comparator The comparator then turns on and is held by the feedback resistor R8 The grou...

Page 5: ...t it is now being replaced by lead free solder for health reasons This kit contains lead free solder which contains 99 3 tin 0 7 copper and has a rosin flux core Lead free solder is different from lea...

Page 6: ...ack orange gold R16 2k Resistor red black red gold R23 200 Resistor red black brown gold see Figure 1 R1 100k Resistor brown black yellow gold R24 200 Resistor red black brown gold R14 5 1k Resistor g...

Page 7: ...apacitor May be marked 201 D3 1N4148 Diode see Figure 4 D4 1N4148 Diode see Figure 4 C1 001 F Capacitor May be marked 102 J Jumper Wire see Figure 3 D5 1N4148 Diode see Figure 4 J Jumper Wire see Figu...

Page 8: ...itch see Figure 6 Q2 2N3904 Transistor see Figure 7 Q1 2N3906 Transistor see Figure 7 SW2 Switch see Figure 6 Q4 2N3904 Transistor see Figure 7 Flat Side Tubing Before installing snip off the tabs Mou...

Page 9: ...off to expose the glue r Place the PC board assembly into the case as shown in Figure 11 Use two 4 screws to hold the case together Do not over tighten or the holes may strip out r Cut a 13 16 piece o...

Page 10: ...of the memory switch set the PULSE MEM switch to the MEM position and set the TTL CMOS switch to the TTL position Now touch the probe tip to the positive side of the battery The PULSE LED should come...

Page 11: ...obstructs resists the flow of electricity Speaker Component that converts electrical energy into sound energy Troubleshoot To find and fix the problem with something TTL Transistor Transistor Logic A...

Page 12: ...ELENCO 150 Carpenter Avenue Wheeling IL 60090 847 541 3800 www elenco com e mail elenco elenco com SCHEMATIC DIAGRAM REV C...

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