
8
1. Power switch
Press this switch to turn on the power. To turn off
the power, press this switch again.
Note
The power switch is disabled while the priority
broadcast or the emergency broadcast is in progress.
2. Power indicator (Green)
Lights when the power is switched on and goes off
when it is switched off.
3. Reset key
Press this key for 1 second or more to reset the
unit.
Use a fine-tipped object to press in this switch.
Note
Perform the following steps before pressing the Reset
key.
• Turn all volume knobs fully counterclockwise to
minimize the volume value.
• Confirm that both the Priority broadcast indicator
(9) and the Emergency broadcast indicator (10) are
unlit.
• Press the Power switch (1) to turn it OFF.
4. LED level meter (Green x 3, Orange x 1, Red x 1)
Displays the output level.
Adjust each volume control knob for an appropriate
output sound so that the red indicator does not
light.
Operating the unit while the red indicator remains
lit causes the sound quality to degrade.
5. Error indicator (Red)
Lights when the unit’s internal abnormality has
occurred.
6. Overcurrent protection indicator (Red)
Lights while the overcurrent protection circuit is
operating if overcurrent flows through the speaker
output.
7. Thermal protection indicator (Red)
Lights while the thermal protection circuit is
operating.
8. Network connection confirmation indicator
(Green)
An indicator to identify the unit using a web
browser.
• Flashes for 5 seconds when the identification
confirmation is performed using a web browser.
• Flashes 3 times when the unit is started up.
• Lights when in the manual mode.
( See the separate setup manual, which can be
downloaded from the TOA DATA Library (https://
www.toa-products.com/international/).)
9. Emergency broadcast indicator (Red)
Lights while the emergency broadcast is in
progress.
( See "PRIORITY BROADCAST FUNCTION" on
10. Priority broadcast indicator (Green)
Lights while the priority broadcast is in progress.
( See "PRIORITY BROADCAST FUNCTION" on
11. CPU running indicator (Green)
Lights while the CPU is running.
12. Volume control knobs for Inputs 1 through 6
Adjust the volume values of the Inputs 1 through 6.
Rotate each knob clockwise to increase the
volume value and counterclockwise to decrease it.
(See "VOLUME ADJUSTMENT" on p. 20.)
1
2
3
4
14
15
12
13
16
7
11
8
9
10
5
6
8. NOMENCLATURE AND FUNCTIONS
[Front]
The figure represents the A-812D.