Related Manuals for Elenco Electronics DT-100K
Summary of Contents for Elenco Electronics DT-100K
- Page 1 DIODE / TRANSISTOR TESTER KIT MODEL DT-100K Assembly and Instruction Manual Elenco Electronics, Inc. Copyright © 1988 Elenco Electronics, Inc. Revised 2002 REV-K 753110...
- Page 2 DT-100 PARTS LIST If you are a student, and any parts are missing or damaged, please see instructor or bookstore. If you purchased this diode/transistor tester kit from a distributor, catalog, etc., please contact Elenco Electronics (address/phone/e-mail is at the back of this manual) for additional assistance, if needed. Qty.
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Page 3: Safety Procedures
CONSTRUCTION Introduction The most important factor in assembling your Diode / Transistor Tester is good soldering techniques. Using the proper soldering iron is of prime importance. recommended. The tip of the iron must be kept clean at all times and well tinned. Safety Procedures •... - Page 4 ASSEMBLE THE FOLLOWING COMPONENTS TO THE PC BOARD R4 - 330kW Resistor (org-org-yel-gold) R1 - 330W Resistor (org-org-brn-gold) R3 - 33kW Resistor R2 - 33kW Resistor (org-org-org-gold) R13 - 1kW Resistor (brn-blk-red-gold) R12 - 10kW Resistor (brn-blk-org-gold) R11 - 100kW Resistor (brn-blk-yel-gold) R14 - 100W Resistor (brn-blk-brn-gold)
- Page 5 ASSEMBLE THE FOLLOWING COMPONENTS TO THE PC BOARD Q1 - 2N3904 Transistor (see Figure B) C1 - 10mF Electrolytic (see Figure C) Q5 - MPS A70 Transistor (see Figure B) C3 - .01mF Capacitor C2 - .01mF Capacitor (may be marked 103) Q2 - 2N3904 Transistor Q3 - 2N3904 Transistor (see Figure B)
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Page 6: Final Assembly
FINAL ASSEMBLY Install the push button switch to the front panel in the hole marked “TEST”. Fasten switch in place with the 1/4” nut. Tighten the nut with pliers (be careful not to scratch the panel). Strip the insulation off both ends of the blue wire to expose 1/4”... - Page 7 Mount the front panel to the switches on the PC board, using four #4 screws or 4-40 x 1/4” screws and four 4-40 nuts, see Figure K. Remove the colored boots from the four alligator clips (to remove the boots, clip the alligator clip onto a pencil and slide the boot off).
- Page 8 CHECKING OUT YOUR TRANSISTOR/DIODE TESTER The following is a simple procedure for testing your DT-100. If the tests fail, refer to the trouble shooting guide for help. Diode Operation: 1.) Place the switch in the diode position. Short the black and red leads together and push in the test button.
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Page 9: Transistor Testing
Transistor Testing The DT-100 can measure transistors in or out of circuit. It will identify NPN or PNP by a simple adjustment. Transistor testing - Out of Circuit 1. Place switch in transistor position. 2. Place transistor in socket or attach to C,B,E leads. If collector C, base B and emitter E are not known, assume B is the center lead on small plastic transistors and C the metal case or tab on power transistors. -
Page 10: Troubleshooting Guide
TROUBLESHOOTING GUIDE If any problems occur, first check your wiring and soldering. Keep in mind that most problems are due to poor soldering or wiring errors. Be sure that there are no solder shorts, poor connections or wiring errors. Check that the battery is connected. Be sure that the transistors are in correctly. Check the LEDs. - Page 11 -10-...
- Page 12 Elenco Electronics, Inc. 150 W. Carpenter Avenue Wheeling, IL 60090 (847) 541-3800 http://www.elenco.com e-mail: elenco@elenco.com...