5-8 Live Tab Model 831 Manual
Preamp Display
The purpose of the Preamp Display is to validate proper
operation of the system. It shows information regarding the
preamplifier currently connected; specifically the
preamplifier type, the SPL and DC voltage at the input to the
Model 831 (for diagnostic purposes).
FIGURE 5-8 Live Tab: Preamp
Using 426A12
The information provided by the Preamp Display is
particularly important when used with the 831-INT System
Interface Unit and the 426A12 Outdoor Preamplifier and
Power Supply. It shows information regarding the control
signals of the control port that connects the 831-INT;
specifically the Overload logic input (indicates a hardware
detected overload condition in the 426A12), the logic input
state, the logic output state, the settings regarding the logic
in and out line, and the status of the Mains Power logic input
(indicates the status of mains power to the 831-INT).
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