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Troubleshooting – StarTech.com SV431DVIUA User Manual

Page 10

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Instruction Manual

7

Troubleshooting

Symptom

Causes

Solution

Keyboard or mouse does

not work

In Auto Scan mode, the

keyboard and mouse

are not operable.

Press any front panel

button to select a

computer, then use the

keyboard and mouse.

Newly installed USB device

does not work

Improper device driver

Device consumes too

much power.

Improper device

initialization

Re-install device driver.

The device should be

self-powered; add a

power adapter to the

device.

Be sure the USB cable

is well seated to ensure

communication

Computer hangs while

switching computers

Device initialization

takes too much time

Wait at least 5

seconds before

computer switching

to ensure proper USB

communication.

Turn off device

driver (not keyboard

nor mouse) before

switching.

Auto Scan does not switch

PC automatically and

SV431DVIUA beeps

All PCs are off or only

one PC is turned on.

Scan mode works for

power-on computers

only.

Turn computers on.

Poor video resolution

Improper video settings

To adjust the optimal

video signal strength

corresponding to the

length or quality of DVI

cable, press the FUNC

button combined with

the other buttons.