Rolls Universal Remote CT 1 Folheto

LED 1/GND: Indicates continuity be-

tween pins 1 of an XLR cable or MIDI 

cable, or ground on an RCA or 1/4" 

cable.

LED 2/TIP: Indicates continuity between 

pins 2 of an XLR cable, or the tip on an 

RCA or 1/4" cable.

LED 3/RING: Indicates continuity be-

tween pins 3 of an XLR cable or MIDI 

cable, or the ring of a 1/4" cable.

Insert one end of the cable to be tested 

on the left side of the line, located in the 

middle of the CT 

1, and the other 

side of the cable 

on the right side 

of the line. See 

example here.

CT 1  

CABLE DETECTIVE

Cable Tester

Owners Manual

SLC, Utah

10/01

CT 1 CABLE DE-

TECTIVE

• Tests 1/4", RCA, XLR and MIDI  

  cables

• Tests combinations of the above

• Easy-to-read LED indication

Any musician or sound person knows how 

difficult it is to maintain cables. The CT 1 

provides an efficient way to detect shorted 

or open cables. The unit tests 1/4" TS, 

1/4" TRS, RCA, and XLR cables. It tests 

MIDI cables, plus, it will test combinations 

of the above. 

1

22-Apr-1999

Document Number:

Date:

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Thank you for your purchase of the CT 

1 CABLE DETECTIVE cable tester. This 

unit was designed with the working musi-

cian and sound person in mind. Read the 

following manual carefully to ensure proper 

operation and a full understanding of all the 

CT 1 functions. The unit tests for: opens, 

shorts, intermittents, and crossed wires

For information on the Rolls One Year Lim-

ited Warranty, and to register this product, 

visit our website at www.rolls.com

The CT 1 consists of two RCA jacks, two 

1/4" jacks, two female XLR, two male XLR 

jacks, and two MIDI jacks.

To test RCA and 1/4" TS cables, plug each end of the cable into the proper jack and 

wiggle the cable around at different points on the cable. Watch the 1 and 2 LEDs, if 

either LED is off, or goes on and off - the cable is bad.
The testing procedure for 1/4" TRS (stereo) and XLR cables is identical to the above, 

except watch the 1, 2 and 3 LEDs. Adapter type cables, such as 1/4" to XLR cables, 

may also be tested by plugging each end into it's proper jack on either side of the line. 

Test as indicated above.
To test a MIDI cable, plug each end 

of the cable into the MIDI jacks and 

test as described above. Watch the 

1 and 2 LEDs, if either LED is off, or 

goes on and off - the cable is bad.
NOTE: WHEN TESTING A 1/4" 

MONO TO RCA CABLE, CON-

NECT THE 1/4" PLUG TO THE 

LEFT 1/4" JACK AND THE RCA 

TO THE RIGHT RCA JACK. DUE 

TO A PARTICULAR CIRCUIT 

CONSIDERATION, TESTING VICE 

VERSA (WITH THE 1/4" ON THE 

RIGHT AND THE RCA ON THE 

LEFT) WILL BE INACCURATE.
TEST INDICATORS
NO LEDS = BAD CORD OR DEAD 

BATTERY
1 LED = SHORTED WIRES
2 LEDS = RCA, MIDI OR MONO 

CORD GOOD, OR CROSSED 

WIRES IN STEREO & XLR CORDS
3 LED = GOOD STEREO 1/4" TRS, 

OR XLR CORD