Toa YA-7000 - Manual (Page 14)

14
7.3.3. Checking Amplifier Operation
Step 1. Shift the YA-7000's Operation mode selector switch to the "TEST" position while making a broadcast.
Confirm that even with the switch in this Test position, the broadcast continues and the main
amplifier's Fault indicator lights.
YA-7000
Operation Mode Selector Switch
TEST
MODE
NORMAL
Fault Indicator
(lights)
Main Amplifier Front Panel
Step 2. Shift the YA-7000's Operation mode selector switch back to the "NORMAL" position.
Confirm that the main amplifier's Fault indicator extinguishes.
Note
If the main amplifier's Operation mode selector switch stays set to the "TEST" position, all broadcasts
will be made via the standby amplifier but will not be able to continue if the standby amplifier happens
to fail.
YA-7000
Operation Mode Selector Switch
Fault Indicator
(extinguishes)
Main Amplifier Front Panel
TEST
MODE
NORMAL