Avlink HDMI-E8 - Manual (Page 47)

Distribution Amplifier (DA)—User Manual
46
8.
Troubleshooting
1. What to do if the serial port (usually refer to the computer serial port) fails to control the
Distribution Amplifier (DA)?
Answer:
Check that the communication port set by the control software is correctly
connected to the corresponding serial port of the equipment. Also, check if the
computer communication port is in good order. Check the ID address and DIP
Switcher are configured correctly. Refer to
6.6.6 Device ID Settings and 6.6.5
DIP Switcher 2 Pins .
2. What to do if the corresponding audio signal fails to output during configurations?
Answer:
(1) Check if there is signal on the input end. If there is no input signal, it could be that the
input connection cable is broken or the connector gets loosen. You are advised to
replace the connection cable.
(2) Check if there is signal on the output end. If there is no output signal, it could be that
the cable is broken or the connector gets loosen. You are advised to replace the
connection cable.
(3) Check if the output port number is the same as the controlled port number.
(4) Check the connections of input and output ports are correctly.
(5) If none of the above circumstances happen, it could be internal failure of the product
itself. You must send for repair by qualified technical engineers.
3. What to do if you sense the power leakage during plugging or unplugging of the
input/output ports?
Answer:
It could be that the equipment power is not properly grounded. You must
properly ground your equipment; otherwise product life can easily be shortened.
4. What to do if the communication ports are out of order?
Answer:
Check if the equipment power input is in good contact and the computer
communication ports are in good order. If yes, it could be some internal failure of the
product, please send for repair by qualified technical engineer.
5. What to do if operation and function failure occurred?
Answer:
Check if the equipment and the system are in proper connection. If the problem
persists, send the product to the maintenance center for repair.