VANCO 280711 (3x1) - Manual (Page 9)

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9
TROUBLE-SHOOTING
1. Best results are usually achieved when the source and display resolutions are the same. If resolutions
differ, then the source and the display will try to adjust the signal to match the resolution of the HD TV
with that of the source. This could result in a picture with a lower resolution on the other HD TV sets.
2. If you do not get audio and video see if you can use the “set-up” menu on the TV to adjust the audio
settings and the video settings. If the HDMI control circuit can’t establish a hand-shake, then there usually
will be no audio or video and a blue or black screen with a statement like “this protocol not supported” or
“weak signal”.
3. If you get the above messages, re-set the Selector Switch by disconnecting the power supply. Alternately,
you can disconnect all of the HDMI and power cables, wait 10 or 15 minutes for any voltages to decay and
then connect all of the cables from the source to the display.
4. If you still have trouble, then try the “hot-plug concept. Turn-on the source and plug the HDMI cable to
it and then power-up the Selector Switch and plug the cable into it, then plug the output cable into the
display and turn-on the display and plug the HDMII cable from the Selector Switch into it. This activates
all of the devices in order and results into a signal being plugged-in to a device that is on and will try to
connect to the signal.
5. Most of the major player and display manufacturers employ a proprietary control channel to communicate
between devices from the same manufacturer. Sometimes this can interfere with the HDMI control circuit
or the authentication of the signal. Call the manufacturer if you experience this problem. Sometimes a
player, an audio/video receiver, or a cable/satellite box may not have the latest software update and needs
to have this downloaded from the manufacturer’s web site.
6. If you have problems with the IR control circuit, make sure that the IR RX pigtail is plugged into the IR
Adapter and the toggle is set at “IR”. Check the batteries in the remote control that was supplied.