Notifier AFC-600 User Manual

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Audio Amplifiers
66 AFC-600 Operations PN 51033:A 3/8/99
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Figure 70 shows the layout of the AA-30 circuit board and identifies AA-30
components:
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Table 31 lists the conditions that cause each AA-30 LED to light:
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Notes:
1. The amplifier does not indicate a trouble condition until 40 seconds after these
faults occur.
2. To calibrate audio amplifiers, install a 470-ohm resistor at the end of the low-level
audio circuit. If the low-level audio circuit is configured as four-wire looped
circuit, install a 470-ohm resistor at the point furthest from the AMG-1 or ATG-2.
LED Lights when
NORMAL LEVEL
The audio amplifier is adjusted properly and operating correctly
during normal (non-alarm) conditions.
INCORRECT LEVEL
The audio amplifier is out of adjustment during normal (non-alarm)
conditions.
SPEAKER TROUBLE
An open circuit condition occurs in the four-wire, high-level output.
AMPLIFIER TROUBLE
A loss of the low-level audio input signal, or an amplifier failure.
BATTERY TROUBLE
The battery voltage is below a sufficient level.
BROWNOUT
The AC power source is below a sufficient level. During a complete
loss of AC power, no LEDs will light on the AA-30.
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Notifier AFC-600 Specifications

General

Brand	Notifier
Model	AFC-600
Category	Fire Alarms
Language	English