TEK 1201-N Compact Presentation Switcher
TEKVOX, INC. 43 www.tekvox.com
512.808.0845
7. Troubleshooting & Maintenance
1) When the output image is looks like noise or snowflakes, common problems
include but are not limited to:
Poor quality cable. Please try another higher quality cable.
The video cables are loose. 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
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 front panel buttons, but
able through RS232 commands, the front panel buttons are probably locked.
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. Send it to the dealer
for repairs.
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