H
H
H
R
R
R
M
M
M
-
-
-
6
6
6
0
0
0
2
2
2
P
P
P
38
CHAPTER 8 TROUBLESHOOTING
1. What to do if LCD is fail in display?
Answer:
Check the connection of power cord is not loosening and the power cord is in a
good status having no any damage. Check the power source is normally.
2. What to do if the HDMI Switcher front panel keys switching not responsive?
Answer:
The HDMI Switcher front panel keys employ scanning testing and require
longer response time. Press the keys for 2 seconds and then release. This
way, key switching will be responsive in operation.
3. What to do if the serial port (usually refer to the computer serial port) fails to control the
HDMI switcher?
Answer: 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
6.5.4 Device ID
Settings
.
4. What to do if the corresponding audio signal fails to output during HDMI Switcher
switching?
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.
