The 1059IR is powered by either J4 or J3 of the 1059A.  The unit contains a Wratten IR filter that block virtually all visible light. Insert the plug into jack J4 on the amplifier.   Place the J4 VOLTS ON (RED) switch in the up position to supply power to the probe.   Insert the 2,000 ohm headset into J6 and adjust the 1059A for normal operation. At a distance of 3 feet the probe "sees" an area roughly 1 foot in diameter.   Any fluorescent lamp (since they emit much more IR than an incandescent bulb) in the area should be turned off by removing the bulbs.   Point the probe in the desired direction and slowly scan the area with one foot overlapping sweeps. Pay particular attention to the level of background noise heard through the headset.   If the ambient light level in the search area is too high or an IR transmitter operating at frequencies above the normal hearing range is detected, the amplifier will fall silent.   If possible, lower the ambient light level or shade the search area.   Make sure that a slight background noise is always heard.  The unit may be tested with a TV remote control.  Point both the control and 1059IR at any shinny object to hear the controller signal. If, for reasons decided by the user, more amplification is needed remove the bottom cover of the 1059A.  Note that an orange wire connects J4 to the TONE-ON (BLUE) switch.   Disconnect this wire at the J4 end and connect it to the same jack terminal on J3.   This will make the J4 VOLTS ON switch a J3 VOLTS ON switch.   Bear in mind that this increase gain may cause the 1059A to saturate more easily. Again... Always pay attention to the background noise to determine if the system is saturated. ©  2008 5/08