Kopul CBT-8 User manual

8-in-1
CABLE TESTER
User Manual
CBT-8

1
Thank you for choosing Kopul.
The Kopul CBT-8 is a professional-quality cable tester that
allows users to test the continuity of a wide variety of cables
with a single device. It quickly identies connectivity and ground
problems in some of the most frequently-used cables, and makes
troubleshooting audio and studio setups fast and effortless.
A six-way selection knob provides easy selection of the pins to
be tested. LED indicators illuminate to show that each pin on the
cable is properly connected. The CBT-8 can test cables with any
combination of Speakon, XLR, RCA, 3-pin and 5-pin DIN, TRS,
and 3.5 mm mini plugs. Two removable leads are included for
testing any kind of wire or cable with jacks that are not included on
this model. They also allow for testing connections when building
or repairing cables.
The CBT-8 is ideal for home, project, and professional studio use.
Constructed with a rugged all-metal case, the CBT-8 is a road-
ready addition to the gig bag of musicians, engineers, and mobile
DJs alike.

2
Battery
Check
Ground
TRS-Jack
3.5 mm
TRS-Jack
3.5 mm
51 32 4
Speakon - 4P XLR/F RCA/Phono DIN 3P/5P TS/TRS
Speakon - 4P XLR/M RCA/Phono DIN 3P/5P TS/TRS
• Illuminated LED pair indicates continuity of
corresponding pins
• Illuminated Ground LED indicates short circuit
(connection between pin and shell)
• Battery Check: bright LED indicates charged battery
• Manual leads: continuity indicated by tone and LED
Jack
1 = sleeve
2 = tip
3 = ring
Speakon
1 = -1
2 = +1
3 = -2
4 = +2
RCA (Phono)
1 = screen
2 = hot
CBT-8
Cable Tester
Precautions
• Please read and follow these instructions,
and keep this manual in a safe place.
• Make sure that this product is intact and that
there are no missing parts.
• Keep this unit away from water and any
ammable gases or liquids.
• Remove the battery during long periods of
non-use.
• Do not attempt to disassemble or repair the
equipment—doing so will void the warranty,
and Kopul will not be responsible for any
damage.
• Clean the unit with a soft dry cloth.
• Use only parts provided by the manufacturer.
• All photos are for illustrative purposes only.
Overview
Selection knob
Ground LED
Battery Check LED
Banana plug jacks
Battery compartment
Pin indicator and
continuity LEDs
Cable testing jacks

3
Installing the battery
1. Lift the cover of the battery compartment in the direction of the arrow. A click indicates that it is
unlocked.
2. Slide the battery compartment out of the cable tester.
3. Insert a 9-volt battery into the compartment with the orientation indicated by the diagram on the
inside of the compartment.
4. Slide the battery compartment back into the cable tester. Push it in rmly and press down until it
clicks, locking it into place.
It is recommended to check the battery prior to testing cables. To test the battery, do the following:
1. Turn the selection knob all the way to the right to Battery Check
2. The LED should glow a bright green indicating that the battery is fully charged.
Note: a dim LED indicates that the battery is not fully changed. Recharge the battery or replace a disposable
battery with a fresh one.

4
Operating the cable tester
Testing cables:
1. Plug the connectors of the cable into the corresponding jacks on either side or the top of the
cable tester.
2. Switch the selection knob to “1.”
3. Turn the knob one click at a time to test each pin on the cable (see table on pages 5-6).
Reading the LED indicators
• Yellow and green LEDs light up: There is good continuity on that pin.
• Yellow, green or both LEDs do not light up: There is a faulty connection or possibly a broken
or damaged wire.
• Ground LED lights up: There is a short circuit in the cable caused by a connection between
the pin and the shell.
Use the tables on pages 5-6 to verify proper pin connections

5
Manually testing cables
1. Plug the banana plugs of the leads into the corresponding red and black jacks on the front
panel of the cable tester.
2. Touch each lead to the corresponding pin on either end of the cable.
3. A lit LED accompanied by a tone indicates good connectivity and continuity.
1 Sleeve
2 Tip
3 Ring
Jack
1 = sleeve
2 = tip
3 = ring
1 Sleeve
2 Tip
3 Ring
1 Sleeve, 3 Ring
2 Tip
1 Sleeve, 3 Ring (shorted with sleeve)
Speakon
1 = -1
2 = +1
3 = -2
4 = +2
Phono
1 = screen
2 = hot
1 Sleeve, 3 Ring
2 Tip
3 Ring
1/4˝ TS Mono to 1/4˝ Mono
1/4˝ TRS to 1/4˝ TRS

6
Specications
Dimensions (H × W × L)
Weight
Material
Connectors
Power
1.4˝ × 3.5˝ × 5.5˝
(3.5 × 8.9 × 14 cm)
1.4 lb. (0.6 kg)
All-metal construction
Speakon – 4 pin
XLR M/F
RCA (Phono)
DIN – 3 pin/5 pin
TS/TRS
3.5 mm mini plug
Banana plugs
One 9-volt battery
(not included)
Pin 1
Pin 2
Pin 3
1 Sleeve
2 Tip
3 Ring
Pin 1
Pin 2
Pin 3
1 Sleeve
2 Tip
3 Ring
Pin 1
Pin 2
Pin 3
Pin 1, Pin 3
Pin 2
Pin 1, Pin 3 (shorted with sleeve)
Pin 1, Pin 3
Pin 2
Pin 1, Pin 3
Pin 1
Pin 2
Pin 3
XLR balanced to XLR balanced
1/4˝ TS Mono to XLR unbalanced
XLR unbalanced to XLR balanced
1/4˝ TRS to XLR balanced

One-Year Limited Warranty
This KOPUL product is warranted to the original purchaser to be free from defects in materials and workmanship under normal
consumer use for a period of one (1) year from the original purchase date or thirty (30) days after replacement, whichever occurs
later. The warranty provider’s responsibility with respect to this limited warranty shall be limited solely to repair or replacement, at the
provider’s discretion, of any product that fails during normal use of this product in its intended manner and in its intended environment.
Inoperability of the product or part(s) shall be determined by the warranty provider. If the product has been discontinued, the warranty
provider reserves the right to replace it with a model of equivalent quality and function.
This warranty does not cover damage or defect caused by misuse, neglect, accident, alteration, abuse, improper installation or
maintenance. EXCEPT AS PROVIDED HEREIN, THE WARRANTY PROVIDER MAKES NEITHER ANY EXPRESS WARRANTIES NOR
ANY IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE. This warranty provides you with specic legal rights, and you may also have additional rights that
vary from state to state.
To obtain warranty coverage, contact the Kopul Customer Service Department to obtain a return merchandise authorization (“RMA”)
number, and return the defective product to Kopul along with the RMA number and proof of purchase. Shipment of the defective
product is at the purchaser’s own risk and expense.
For more information or to arrange service, visit www.kopulcables.com or call Customer Service at 212-594-2353.
Product warranty provided by the Gradus Group.
www.gradusgroup.com
KOPUL is a registered trademark of the Gradus Group. © 2016 Gradus Group LLC. All Rights Reserved.
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