7
USB
If your USB stops functioning correctly, you can manually re-initialize the USB hub in
the switch by pushing twice on the channel select button, that corresponds with the
channel that the switcher is pointed at, on the front of the unit. This will cause the
channel selected LED to blink once letting you know the USB hub has been
re-initialized.
To have the USB re-initialize automatically every time you switch, look under the 4x1
DVI Switcher and locate the blank sticker. Peel it off to reveal a bank of four dip switch-
es. Find the dip switch labeled “4” and fl ip it to the ON position. Now every time you
switch the hub will re-initialize itself.
Video
When turning on or rebooting your computers, the 4x1 DVI DL Switcher must be se-
lected to the computer that is booting until the computer completes the boot cycle. This
step can be eliminated using the Gefen DVI Detective.
If you loose your picture when you switch between sources you will need a DVI
Detective.
To switch between Dual Link and Single Link sources, a Single Link cable (sold
separately) must be used for each Single Link source connected to the switcher.
OPERATION NOTES & TROUBLESHOOTING
