Toa FS-7000 SERIES Manual - Manual (Page 17)

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1. Power Switch
Press this switch to turn on the power. To turn off
the power, press this switch again.
2. Power Indicator
Lights when power is supplied and the FS-
7006PA/7012PA is ready for operation.
3. Volume Control
Adjusts the input signal level. This volume control
cannot be used while the Bypass Indicator (8)
continuously lights.
4. Fill-In Space
Write uses of the main and standby amplifiers in
this space.
5. Fault Indicator
Lights when an output muting function* is
operated or when a failure is detected.
If the YA-7000 is used, this indicator lights when
the YA-7000 detects a failure and the power
amplifier is switched over to a standby amplifier.
(See page 30.)
* This function prevents noise from being
generated when power is switched on and off.
6. Signal Indicator
Lights when a signal that exceeds a level 24 dB
below the rated output is sent to the Speaker
Output on the rear panel.
7. Peak Indicator
Lights when a signal that exceeds a level of 3 dB
below the rated output is sent to Speaker Output
on the rear panel.
8. Bypass Indicator
Lights when the Volume Bypass Control Input on
the rear panel is enabled and indicates that the
Volume Control (3) has been bypassed and
disabled.
5.11. FS-7006PA/7012PA Power Amplifiers
These power amplifiers are used in conjunction with FS-7000 Series Voice Evacuation Systems. The FS-
7006PA's output is rated at 600 W and the FS-7012PA is rated to deliver 1,200 W. By mounting the YA-7000
module in a power amplifier and connecting a standby amplifier to it, the power amplifier can be automatically
switched over to the standby amplifier if the power amplifier fails. When initiating emergency broadcasts, the
volume control on the front panel is bypassed by closing the Volume Bypass Control terminals on the rear
panel, allowing broadcasts of emergency message at maximum volume.
[Front]
Figure shows the FS-7012PA.
2
1
3
4
7 8 6 5
5.12. YA-7000 Amplifier Auto Switching Module
The YA-7000 module is designed to be mounted in the power amplifier of FS-7000 Series Voice Evacuation
Systems. Connecting a standby amplifier to the YA-7000 module installed in the main amplifier (FS-7006PA or
FS-7012PA) permits the main amplifier to be switched over to the standby amplifier if the main amplifier fails.
[Front]