Toa PA-3640VB - Manual (Page 5)

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8 9 10 11 12 13 14
15 16 17 18
[Rear]
8. AC inlet
Connects to the supplied AC power cable.
9. Priority-activated control output terminal
Provides relay contact outputs.
The relay contact transfers from NC (normally
closed) contact to NO (normally open) contact
when the priority control input (12) is activated.
10. Speaker output terminal
Connect speakers to the COM terminal and 50 V
or 100 V terminal.
Never use both 50 V and 100 V terminals at the
same time for connection.
11. Port for YA-1000A
Provided for installing the optional YA-1000A
Fault Detection Circuit Module.
To install the YA-1000A, remove the knockout
plate with nippers.
For details, refer to the instruction manual
attached to the YA-1000A.
Note
Refer servicing to qualified service personnel.
Contact your TOA dealer.
12. Priority control input terminal
When shorted, the Priority input takes
precedence over the Program input and the
Priority-activated control output (9) is activated.
13. Priority input/output terminals
0 dB*, 100 kΩ, balanced, phone jacks.
Both input and output terminals are internally
connected in parallel.
The Priority input overrides the Program input
when the Priority control is activated. The Priority
output terminal can be connected to the next
power amplifier's Priority input terminal, feeding
the same Priority input sources to the amplifier.
14. Program input/output terminals
0 dB*, 100 kΩ, balanced, phone jacks.
Both input and output terminals are internally
connected in parallel.
The Program input is muted by the Priority input
when the Priority control is activated. The
Program output terminal can be connected to the
next power amplifier's Program input terminal,
feeding the same Program input sources to the
amplifier.
15. Signal/chassis ground terminals
A ground lift jumper is pre-mounted at the
factory.
Removing the jumper disconnects the chassis
ground from the signal ground, thereby
eliminating a ground loop.
16. DC power input terminals
Considering the allowable current capacity for
each input terminal, be sure to use the dual DC
power input when connecting a DC power supply
unit.
17. Functional ground terminal (Signal ground)
Hum noise may be generated when external
equipment is connected to the unit. Connecting
this terminal to the functional ground terminal of
the external equipment may reduce the hum
noise.
Note: This terminal is not for protective ground.
18. 24 V DC output terminal
Supplies DC power of 24 V, 500 mA max. to
external devices.
* 0 dB = 1 V