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below 7.25 volts and the battery should be replaced or
recharged (nicad only).
If the battery is tested periodically, the failure of the
LED to light indicates approximately one hour-of battery
life left (alkaline only).
Polarity
With the Shure WL83 or a Shure low- or high-
impedance XLR-connector microphone connected
through a WA310 cable, positive pressure on the
microphone diaphragm results in positive voltage on pin
2 with respect to pin 3 of the receiver OUTPUT connec-
tor. Negative voltage applied to the tip of a WA300 cable
will result in the same output polarity.
TRANSMITTER CONNECTIONS AND
ACCESSORY WIRING
FIGURE 2
9