Inter-m SC-6224 - Front Panel Controls and Indicators; Test Time Adjustment Volume

SPEAKER LINE CHECKER
6
SC-6224
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Depending on positions of volume, automatic test time can be adjusted from 5 to 200minutes. Turn the nob
to clockwise, then set time will be increased.
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It is the power ON/OFF switch.
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It is the LED displaying the status of power ON/OFF.