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GOOD TEST:

top jack

GOOD TEST for PIN 2 HOT

GOOD TEST for PIN 3 HOT

GOOD TEST for PIN 2 HOT

GOOD TEST for PIN 2 HOT

GOOD TEST for PIN 3 HOT

GOOD TEST for PIN 3 HOT

XLR (M) to TS 1/4” (UNBALANCED)

TS 1/4” (UNBALANCED) TO XLR (F)

XLR (M) to RCA (UNBALANCED)

In a properly wired unbalanced cable such as this one, Pin 1 and Pin 3 of the XLR (representing Shield and Cold,
respectively) are bridged. The red LEDs under “C” (Cold) and “S” (Shield) will illuminate to show this condition. 

In a properly wired unbalanced cable such as this one, Pin 1 and Pin 3 of the XLR (representing Shield and Cold,
respectively) are bridged. The red LEDs under “C” (Cold) and “S” (Shield) will illuminate to show this condition. 

In this tester, the RCA jacks are referenced to the (Hot) and (Shield) LEDs. In a properly wired, Pin 2 Hot unbal-
anced cable such as this one, Pin 1 and Pin 3 of the XLR (representing Shield and Cold, respectively) are bridged.
The red LED under “S” (Shield) illuminates to show this condition. Since the LEDs are referenced to the jacks on
the right, and since the RCA jack has only two contacts (Hot and Shield) the red (Cold) LED does not illuminate.

top jack

Exception: Use the top
1/4” Jack for this test.

Exception: Use the top
1/4” Jack for this test.

Summary of Contents for CBT-375

Page 1: ...n the lower position Improperly wired banana cables or banana cables plugged into the tester upside down will light Red LEDs If you re testing speaker cables that use Speakon and or dual banana connec...

Page 2: ...have Speakon plugs the LED lights refer to the 1 1 2 2 contacts of the Speakon plug connected to the RIGHT SIDE Why is this distinction important The reason is that many cable assemblies use three or...

Page 3: ...we ve used the balanced jack for the unbalanced 1 4 plug in this test only But if the red H LED illuminates that would indi cate that cable repair is needed due to a bridged short condition in the cab...

Page 4: ...s one Pin 1 and Pin 3 of the XLR representing Shield and Cold respectively are bridged The red LEDs under C Cold and S Shield will illuminate to show this condition In this tester the RCA jacks are re...

Page 5: ...old respectively are bridged The red LEDs under C and S will therefore illuminate Only the H and S green LEDs will light showing good through connections to both contacts of the RCA This cable Hosa s...

Page 6: ...ST 2 Conductor Cable For Testing Speakon cables be sure to first switch the MODE Switch to the SPEAKER position LEFT SIDE RIGHT SIDE 3 5mm STEREO 3 5mm STEREO to 1 4 STEREO Speakon to Speakon GOOD TES...

Page 7: ...n 1 4 to Speakon 1 4 to Banana bottom jack bottom jack ground tab For Speakon to one Banana the test is straightforward and yields results shown above right For Speakon to TWO Bananas test first one b...

Page 8: ...sed for normal full range speaker applications as well as in applications where biamping is employed Its four inner contacts or poles allow it to be connected not only to a standard two con ductor ful...

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