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5

CT3

Example 1

A. Connect an XLR cable to the Send side of the CT3.
B. Switch ON the Sender (E). If any of the YELLOW LEDs light, it indicates a short in the cable. Now, connect the other end of 

the cable to the Receiver side. You should see the first 3 YELLOW LEDs on the Sender and the first 3 GREEN LEDs on 
the Receiver lighting in sequence and the other 5 LEDs not being lit at all. 

C. Switch the Receiver (G) to Cable Test. If a battery is installed you will now hear a BEEP sound when PIN 1 is detected. (As 

long as the cable is not faulty). Please note, the cable MUST have at least PIN 1 connected for the CT3 to operate properly. 
You will immediately know that PIN 1 is faulty if no sound or lights are working on the CT3 during cable testing.

In this way, you are now able to split the CT3 in half (Sender and Receiver) and still see if a cable is working properly by 
only looking at one side of the tester (the Receiver side).
The order in which PINs are shown in the receiver side (the GREEN LEDs) is the order in which the PINs (or wires) are 
being tested and connected.) 

If for example the XLR cable is wired 1, 3, 2 instead of 1, 2, 3 you would first hear the BEEP when PIN 1 is connected and 
then you would see PIN 3 and then PIN 2. You would then know that the cable is not wired properly.

If for example the XLR cable is faulty with PIN 2 not connected. You would hear the BEEP for PIN 1 (and see the GREEN 
PIN 1 LED lit) you would then not see LED 2 light up and then LED 3 would light up. 

Warning: Do not connect cables with PHANTOM POWER already present or any kind of power passing through them� 
The unit could be damaged and will not be covered by Warranty�

Summary of Contents for DBX CT3

Page 1: ...OWNER S MANUAL CT3 ADVANCED CABLE TESTER ...

Page 2: ...with the sale of this product In no event shall dbx or its dealers be liable for special or consequential damages or from any delay in the performance of this warranty due to causes beyond their control Technical Support Service If you require technical support contact dbx Technical Support Be prepared to accurately describe the problem Know the serial number of your device this is printed on a st...

Page 3: ...1 CT3 Table of Contents Overview 2 Introduction 2 Features 2 Connections 3 Using The CT3 4 Example 1 5 Specifications 6 ...

Page 4: ... BNC connectors for testing of 2 pin to pin connections 2 RCA Phono connectors for testing of 2 pin to pin connections 2 XLR connectors 1 x Male 1 x Female for testing of 3 pin to pin connections 2 MIDI 5 pin DIN connectors for testing of 5 pin to pin connections 2 Speaker Twist connectors for testing of 4 pin to pin connections 2 Banana connectors for testing of 1 pin to pin connections 2 1 4 6 3...

Page 5: ...ll see the LEDs on the receiver unit dim in intensity as the Ring and Sleeve are shorted by the jack being used A B C D E F G H A Receiver side B Adjusts the level of the test tone C Sender side voltage goes OUT from here to a cable for testing D The speed at which the testing of cables occurs E ON OFF switch for the sender F Battery compartments for 2 x 9V DC batteries G Test Tone OFF Cable Test ...

Page 6: ...m the Tone Generator is sent out the jacks on the left hand side of the unit This is a balanced signal and as indicated the positive signal is on pins 2 and 4 and the negative signal is on pins 3 Pin 1 is grounded If you are testing an unbalanced device the output level indicated by the Tone Level Knob is exactly half of that shown The Test Tone generator is strong enough to drive certain devices ...

Page 7: ...g cable testing In this way you are now able to split the CT3 in half Sender and Receiver and still see if a cable is working properly by only looking at one side of the tester the Receiver side The order in which PINs are shown in the receiver side the GREEN LEDs is the order in which the PINs or wires are being tested and connected If for example the XLR cable is wired 1 3 2 instead of 1 2 3 you...

Page 8: ...tice Specifications and appearance may differ from those listed or shown Important Note Every effort has been made to ensure all information provided in this manual is accurate at the time of writing dbx is not liable for any incorrect information contained in this manual and extends no liabilities in regard to this manual other than those required by local law dbx may update the contents of this ...

Page 9: ...7 CT3 THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 10: ...Phone 801 566 8800 Website dbxpro com Support dbxpro com en US support dbx Professional Products is a registered trademark of Harman CT3 Owner s Manual 2015 Harman All rights reserved ...

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