Elenco Electronics TCT-255K Assembly And Instruction Manual Download

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PARTS LIST - SECTION D

RESISTORS

Qty.

Symbol

Description

Color Code

Part #

R1-R8

200

5% 1/4W

red-black-brown-gold

132000

CAPACITORS

Qty.

Symbol

Value

Description

Part #

470

F 16V

Electrolytic Radial

284744

SEMICONDUCTORS

Qty.

Symbol

Value

Description

Part #

D1-D16

LED Red

350003

U2, U3

74HC4066

Integrated Circuit (IC) Quad Analog Switch

394066

MISCELLANEOUS

Qty.

Symbol

Description

Part #

F-Connector

590500

Modular Jack RJ-45

621028

Spacer

624006

U2, U3

IC Socket 14-pin

664014

SECTION D

Switches and LED Indicator

PARTS IDENTIFICATION

Resistor

Integrated Circuit (IC)

Electrolytic

IC Socket 14-pin

F-Connector

Modular Jack

LED

Spacer

Summary of Contents for TCT-255K

Page 2: ...ation cable with RJ 11 and RJ 45 connectors and coax cable This tester can be used for testing cables before and or after they are installed The tester offers easy operation by having to push only one...

Page 3: ...value printed in the following manner The maximum operating voltage may also be printed on the capacitor Second Digit First Digit Multiplier Tolerance The letter M indicates a tolerance of 20 The lett...

Page 4: ...mpleted Be sure to save the extra leads for use as jumper wires if needed Soldering The most important factor in assembling your cable tester kit is good soldering techniques Using the proper solderin...

Page 5: ...4 Solder bridges occur when solder runs between circuit paths and creates a short circuit This is usually caused by using too much solder To correct this simply drag your soldering iron across the sol...

Page 6: ...N5235 Zener Diode 6 8V 0 5W 315235 2 Q2 Q3 2N3904 Transistor NPN 323904 1 Q1 2N3906 Transistor PNP 323906 1 D19 LED Red 350003 1 U4 40106 Integrated Circuit IC Hex Inverter 330106 MISCELLANEOUS Qty Sy...

Page 7: ...black red gold see Figure A D18 1N5235 Zener Diode 0 5W see Figure D Battery Snap see Figure H Q1 2N3906 Transistor PNP see Figure C Figure A Mount the resistor flat against the PC board as shown Figu...

Page 8: ...e switch SW1 again The meter should indicate the same voltage as in step 2 If not a Check that the battery snap is connected with the the right polarity as shown in the assembly instructions b Check t...

Page 9: ...tic IC Socket 8 pin Figure I Insert the IC socket into the PC board with the notch in the direction shown on the top legend Solder the IC socket into place Insert the IC into the socket with the notch...

Page 10: ...in the assembly instructions b Check R13 and R14 are the correct values Remove the battery from the battery snap and the leads from the tester 9 SECTION B OSCILLATOR The oscillator section consists o...

Page 11: ...ue Description Part 1 U1 4017 Integrated Circuit IC Decade Counter 334017 MISCELLANEOUS Qty Symbol Description Part 1 U1 Socket IC 16 pin 664016 SECTION C Step Pulses with Counter PARTS IDENTIFICATION...

Page 12: ...r IC are used to control eight electronic switches A short positive pulse must be generated and applied to the clock input of the 4017 IC whenever switch SW1 is depressed This is done by wiring three...

Page 13: ...Qty Symbol Value Description Part 16 D1 D16 LED Red 350003 2 U2 U3 74HC4066 Integrated Circuit IC Quad Analog Switch 394066 MISCELLANEOUS Qty Symbol Description Part 1 J2 F Connector 590500 1 J1 Modul...

Page 14: ...tor red black brown gold see Figure A R2 200W 5 1 4W Resistor red black brown gold see Figure A R7 200W 5 1 4W Resistor red black brown gold see Figure A U2 14 pin IC Socket U2 74HC4066 IC see Figure...

Page 15: ...D15 LED D16 LED see Figure N Figure M Mount the spacer to the PC board as shown Figure N Mount the LEDs onto the spacer as shown Note the flat side of the LED in relation to the marking on the PC boar...

Page 16: ...e 8 shows the logic diagram for each switch Each switch contains an input output and a control pin The inputs are connected to the oscillator section and the outputs to two LEDs and connector The cont...

Page 17: ...oard ASSEMBLE THE FOLLOWING COMPONENTS TO THE PC BOARD In all of the following steps the components must be installed on the top legend side of the PC board The board is turned to solder the component...

Page 18: ...ignals The diodes are placed in series with wires 1 8 2 7 3 6 and 4 5 see Figure 11 Figure 11 PARTS LIST SECTION F MISCELLANEOUS Qty Symbol Description Part 4 Plug RJ 45 621032 2 Cable Flat 8 Wires 87...

Page 19: ...and HT 568 Cut the 2 telecom cable in half see Figure 12 Using the instructions for your tool make two cables straight and cross pinning as shown in Figures 13 15 Make sure that you make a clean cut o...

Page 20: ...x 10mm Machine Phillips Flat Head 643105 1 Screw 2 6 x 10mm Thread Cutting Phillips Flat Head 643107 1 Label Terminator 727050 1 Label Tester 727051 Used for the assembly of the terminator SECTION G F...

Page 21: ...d referring to Table 2 below The single LED should always be on the bottom row If not then a Check the cable using the master tester b Check diodes D1 D4 on the PC board of the terminator Be sure that...

Page 22: ...wires from the battery snap around the battery housing as shown in Figure Q Mount the bottom case to the front case as shown in Figure Q using four 3 x 12mm flat phillips screws Be sure that the batte...

Page 23: ...Figure U Figure T FINAL ASSEMBLY OF TESTER cont Before assembling check that the excess leads from the F connector are cut off see page 16 Assemble the terminator as shown in Figure U Insert the 2 6...

Page 24: ...ng Function to test individual wire pairs or coaxial cables Cable identification straight or cross pinning Pair identification straight or cross pinning Open short wiring test ENVIRONMENTAL CONDITIONS...

Page 25: ...linking two or more wires are shorted 3 Push the TEST button again and read the result for the next pair 4 For testing coax cable use the middle LEDs boxed in as coax on the unit 5 If you do not push...

Page 26: ...1 Y 2 G 3 R 4 BK 5 W 6 1 2 3 4 5 6 BL 1 OR 2 BK 3 R 4 G 5 Y 6 BN 7 S 8 1 2 3 4 5 6 7 8 BL 1 OR 2 BK 3 R 4 G 5 Y 6 BN 7 S 8 1 2 3 4 5 6 7 8 RJ 11 4 Wire Straight Pinning RJ 11 4 Wire Cross Pinning RJ...

Page 27: ...or alkaline 9V battery Use the following procedure to replace the battery 1 Disconnect the cables from the tester 2 Using a phillips screwdriver remove the battery cover screw and open the battery co...

Page 28: ...Elenco Electronics Inc 150 W Carpenter Avenue Wheeling IL 60090 847 541 3800 www elenco com e mail elenco elenco com...

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