TURN THE OPERATION MODE SWITCH TO �SEPARATE� Make sure the power is switched off. If the power is on, the warning circuit will be activated, the mode illumination light and mode indicator will flash, and there will be no sound. TURN THE POWER ON Check to see that the word SEPARATE on the mode indicator has lit up. Note that it will not light up if the illumination button is switched off. ADJUST THE VOLUME ON THE CONTROL AMPLIFIER You should refer to the Directions for Use which came with the control amplifier.
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USE THE ATTENUATOR DIAL TO ADJUST THE HIGHFREQUENCY CHANNEL VOLUME (0 to -15.0 dB) If you are not using the attenuator circuit, you should press the ATT THROUGH button for at least two seconds. The ATT THROUGH button will light up, and the sound will emerge after a delay of five seconds. SWITCH THE ATT HOLD BUTTON ON The ATT HOLD indicator will light up, and the adjusted attenuation will be held. If you wish to switch from ATT HOLD to ATT THROUGH, you should first switch the ATT HOLD button off, then press the ATT THROUGH button for at least two seconds.
