OmniSistem Beta 3 – EC-2600U - Manual (Page 22)

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10> FREQUENTLY QUESTIONS SOLVING
Disconnect
Panel button
operation error
No Sound output
Overload indicator
is flashing often
Sound default
Noise
Check the power cord is connected well or not? And the power button on the
front panel is turn on or not?
10.1 Audio relevant question
Check whether the setting of input signal and plus is limited. And will get
more plus from output. So do not try to adjust much the plus of the
equipment and filter. That will caused the output noise being strong.
Check the crossover setting if want output full range signal.
Whether the input signal is over strong? (The max input signal is over
20dBu or not?). Whether the plus of Input/output increased much?
Check the plus of parameter increased much.
Check the input/output is silent or not? The plus of input/output is weak
or not? Check the selection sound source of each output channel. And
confirm whether have signal to relevant input channel. If finished setting the
crossover, confirm the closed frequency of high filter is lower than the
closed frequency of low filter.
Check the lock button on the panel is flashing or not. And unit is locked
status or not.
10.2 RS-232/RS-485 connecting problem
1). Check all the connecting wires, and make sure these are standard wires. Please check the back plate
connecting terminal definition for the reference of connecting standard.
2). While many machines are connected with the head line(485), Please check the address pins of the machines,
and make sure no conflict.
3). Check the USB port, Keep the hardware and software are in the same port.
10.3 BGM switch problem
1). Make sure BGM switch controlling terminal is connected well.
2). Make sure BGM switch controlling signal(difference between two lines) are between +5VDC--+48VDC.
DIGITAL SPEAKER PROCESSOR