background image

commencing testing, you check battery status (See section “

Testing and Replacing 

Battery

 “). 

 
          

TEST PROCEDURE: 

          
             The MCT-7 Cable Tester is simple to operate. A schematic diagram of the 
connectors and their pin assignments is shown on the front panel of the unit. Light 
Emitting Diodes (LEDs) give a clear visual representation of the connections.  
         YELLOW LEDs 1-5 refer to the pins of connectors on the left side (INPUT) of the 
unit. Green LEDs 1-5 refer to the pins of connectors on the right side (OUTPUT) of the 
unit. 
          
             Checking the status of connections is made using the Pin Selector Switch. Until 
you become familiar with the connectors, pin wiring and switch selector positions, you 
may wish to refer to the data shown in Table 1.  
 

Table 1 

         

 

Connector        

 Pin 

Assigned  Position 

 

 

 

 

Speakon NL4 

 

 

-1 

 

 

 

 

-2 

Phono/RCA 

Center 

 

 

Ring 

BNC / Video  

Center 

 

  Ring 

MIDI 5 DIN 

 

 

 

 

 

 

 

 

Jack 3.5mm (1/8”) 

Tip 

 

 

Ring 

 

 

Sleeve 

Jack 6.3mm (1/4”) 

Tip 

 

 

Ring 

 

 

Sleeve 

Male or female XLR 

 

 

 

 

 
 
             1. Plug one end of the lead to be tested into the corresponding connector on the 
INPUT (left) side of the unit. 
          

Содержание MCT-7

Страница 1: ... for the following conditions Positive Continuity Cross Wiring Loose Contact Open Circuit Leakage Between Wires up to 10KΩ Short Between Wires Short to Ground female XLR MIDI Please read the following instructions carefully before using the MCT 7 Cable Tester Warning The leads to be tested must be fully disconnected from any other equipment or electrical source Failure to do so could result in ele...

Страница 2: ...ins of connectors on the right side OUTPUT of the unit Checking the status of connections is made using the Pin Selector Switch Until you become familiar with the connectors pin wiring and switch selector positions you may wish to refer to the data shown in Table 1 Table 1 Connector Pin Assigned Position A Speakon NL4 1 2 1 1 2 4 2 3 B Phono RCA Center 2 Ring 1 B BNC Video Center 2 Ring 1 C MIDI 5...

Страница 3: ...ermine which position of the Pin Selector Switch corresponds to the pins of the selected connector refer to Table 1 or the diagrams printed on the front panel of the MCT 7 Cable Tester 5 Rotate the Pin Selector Switch to position 2 3 and so on until all pins of the selected connectors have been tested Following are some examples of possible conditions that may arise while testing a lead all exampl...

Страница 4: ...er LEDs will light is proportional to the leakage between wires The MCT 7 Cable Tester will show leakage up to 10KΩ between wires See Fig le SHORT BETWEEN WIRES the LEDs of the pin being tested will light also other LEDs will light for the wires in short See Fig 1f SHORT TO GROUND the LEDs of the pin being tested will light as well as the Ground LED Red and indicated with a G If more than one LED ...

Страница 5: ...eo When testing mono plugs and the pin selector knob is in position 1 or 3 the LEDs 1 and 3 will light See Fig 1h Notice that in this case the Pin Selector Switch is in positions 1 and 3 respectively Testing and Replacing the Battery If you place the Pin Selector Switch to position number five the LED marked B will light this means the battery is good The intensity with which this LED lights is pr...

Страница 6: ...the unit upside down and carefully remove the base plate Remove the battery from the unit being careful not to strain the battery leads Disconnect the battery and connect a new one Position the newly connected battery back in the unit and reassemble with care We recommend that you use only alkaline type batteries to prevent any type of leakage that may damage the MCT 7 Cable Tester ...

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