www.tekvox.com
1201-N+
79033-N+ User Manual
7. Troubleshooting & Maintenance
1)
When the output image looks like noise or snowflakes, common problems can include but are
not limited to:
Poor quality cable. If this appears to be the problem, try using a different cable.
Loose video cables. If this appears to be the problem, try reconnecting them.
2)
When it is not able to manage EDID, the HDMI cable may be broken or loose.
3)
When a user cannot control the switcher by computer through its COM port, check the COM port
number in the software and make sure the COM port is in good condition.
4)
If the POWER indicator doesn’t work or respond to any operation, ensure that the power cord’s
connection is secure.
5)
No output image when switching:
Use an oscilloscope or multi-meter to determine if there is a signal at the input and output
end. If there is no signal, the connection cord may be broken or have loose connections. Use
a new cable and/or attempt to reconnect them.
If none of these methods have worked, there may be something wrong with the switcher.
Contact your dealer if this is the case.
6)
If the static becomes stronger when connecting the video/audio connectors, the grounding may
be incorrect. If it is incorrect, the connection may damage the switcher.
7)
If it is not able to control the scaler-switcher from the front panel buttons, but is able through
RS232 commands, the front panel buttons are might be locked. If so, send command “
50605%”
to unlock.
8)
If the scaler-switcher cannot be controlled by the buttons on the front panel, RS232 port, or IR
remote, the switcher may be broken.
If your problem persists after following the above troubleshooting steps, seek further help from
authorized dealer or our technical support at
.
