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7. Troubleshooting and Maintenance
1)
When there is no output audio:
Check if there is any signal at the input.
Check if there is any signal at the output.
We can check these by using an oscilloscope or a multimeter. If there is no signal input/output, maybe the input/output cables
broken or the connectors loosen, please change for another cable.
Check if the output port number is the same with the controlled one.
If not the problem mentioned above, probably there is something broken inside the unit; please contact technical support
2)
If the
POWER
indicator doesn’t work or no respond to any operation, please make sure the power cord connection is good.
3)
If the output sound is interfered, please make sure the system is grounded well.
4)
If the static becomes stronger when connecting the audio connectors, it probably due to bad grounding, please check the
grounding and make sure it connected well, otherwise it would damage the amplifier.
5)
If the keys on the front panel, RS232 port or the IR remote, cannot control the AP3DBL amplifier the unit could be defective
please contact technical support.
8. Safety Operation Guide
In order to guarantee the reliable operation of the equipment and safety of the staff, please abide by the following proceeding in
installation, using and maintenance:
1)
The system must be earthed properly. Please do not use two blades plugs and ensure the alternating power supply ranged from
100v to 240v and from 50Hz to 60Hz.
2)
Do not put the switcher in a place of too hot or too cold.
3)
As the power generating heat when running, the working environment should be maintained fine ventilation, in case of damage
caused by overheat.
4)
Please cut off the general power switch in humid weather or left unused for long time.
5)
Before following operation, ensure that the alternating current wire is pull out of the power supply:
Take off or reship any components of the equipment.
Take off or rejoin any pin or other link of the equipment.
6)
As to non-professional or without permission, please DO NOT try to open the casing of the equipment, DO NOT repair it on your
own, in case of accident or increasing the damage of the equipment.
7)
DO NOT splash any chemical substance or liquid on the equipment or around.
