DVI /Audio Matrix Switcher 4x4
PTN Electronics Limited
12
www.PTN-electronics.com
9. Troubleshooting and Maintenance
1)
When the output image in the destination device connected to MDV44A has ghost,
such as the projector output with ghost, please check the projector’s setting or try
another high quality connection cord.
2)
When there is a color losing or no video signal output, maybe the DVI cables
haven’t been connected well.
3)
When user cannot control MDV44A by computer through its COM port, please
check the COM port number in the software and make sure the COM port is in
good condition.
4)
When switching , there is no any output image:
A. Check with oscilloscope or multimeter if there is any signal at the input/output
end. If there is no signal input/output, it may be the input/output connection
cord broken or the connectors loosen.
B. Make sure the destination device is exactly on the controlled output channel.
C. If it is still the same after the above checking, it may be something wrong in the
switcher. Please send it to the dealer for fixing.
5)
If the
POWER
indicator doesn’t work or no respond to any operation, please make
sure the power cord connection is good.
6)
If the output image is interfered, please make sure the system is earthed well.
7)
If the static becomes stronger when connecting the DVI connectors, it may be due
to the incorrect earthling of the power supply, Please earth it again correctly, and
otherwise it would bring damage to the switcher or shorten its natural life.
8)
If the Matrix cannot be controlled by the keys on the front panel, RS232 port or
remote controller, the host may has already been broken. Please send it to the
dealer for fixing.
