PUBLIC ADDRESS AMPLIFIER
4
PAM-120A/340A/480A
Front Panel
Front Panel
1. TUNER MODULE BAY
This panel provides for installation of optional PAM-T (AM/FM Tuner) Module, via the unit’s internal connectors.
2. CASSETTE DECK AND CD MODULE BAY
This panel provides for installation of optional PAM-CDA (CD Player) or PAM-D (Cassette Deck) Modules, via
the unit’s internal connectors.
3. OUTPUT LEVEL DISPLAY
This seven-segment LED meter indicates the amplifier’s output level in RMS.
4. CHANNEL 1-6 VOLUME
Controls the individual volume levels of Channels 1-6.
5. TONE CONTROL
Individual Bass and Treble controls are used to cut (decrease) or boost (increase) the lower and higher
frequencies ±12dB.
6. MASTER VOLUME
This rotary switch controls the overall output volume of the amplifier’s output signal.
7. CHIME BUTTON
Pressing this switch activates the chime circuitry.
8. SPEAKER SELECTOR SWITCHES
These switches are used to select output to any combination of up to five individual speakers.
9. POWER SWITCH
Pressing this switch turns the unit on, as indicated by the Power LED above the switch. Pressing it again turns the unit off.
10. PROTECTION INDICATOR
This LED indicates the state of the amplifier’s protection circuitry. When the Protection LED is on (illuminated),
the protection circuitry is active, indicating that the unit is not operating normally. This is typically due to
overheating or power limiting. Please check the Input and Output condition of the amplifier.
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