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9
Troubleshooting
Ensure that all cables are well seated. Label the cable for each
computer to avoid confusion when connected to the SV431H.
Key Possible causes Solutions
Keyboard or mouse
does not work
• In Auto Scan,
computers using
USB keyboard and
mouse are not
operable.
• Too many
keyboard or mouse
drivers installed.
• Press any front button
to select a computer,
then use the keyboard
and mouse.
• Remove all
unnecessary keyboard
and mouse drivers.
Keyboard or mouse
does not work after
switching to a
different USB
computer.
The USB computer
does not support
plug-and-play as
specified by the
USB standard.
Update that computer’s
USB driver. Device hot
plug-and-play is one of
the basic USB
specifications.
Computer hangs
up while switching
computers.
USB computer
initialization take
too much time.
Wait at least 5 seconds
before switching from
one USB computer to
another to ensure
proper USB
communication.
Auto Scan does not
switch PCs
automatically and
the SV431H beeps.
All PCs are off or
only one PC is
turned on. Scan
mode works for
power-on
computers only.
Turn computers on.