C2G 22391 One-Console KVM Switches - Manual (Page 15)

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Troubleshooting:
Ensure that all cables are well seated. Check that keyboard/mouse
cables are not swapped. Label and bundle the cables for each
computer to avoid confusion when connected to the KVM Switch.
Symptom Possible causes Recommended solutions
No OSD screen .No power to KVM Switch
.Loose monitor
connection
Monitor not multi-sync
.Establish power by turning on
computers, wait, press left CTRL
keys several times.
.Reconnect monitor
.Use multi-sync monitor
Keyboard error
on boot .Loose keyboard
connection .Make sure keyboard cables are
Well seated
Master/slave
does not work .Improper installation
procedures
.Make sure slave’s CONSOLE is
connected to Master’s PC 1~ PC
8 port
.Press and hold the 1 and 2
push buttons to initiate K/M reset
.Remove any possible power
supply to the slave (unplug all
cables), before connecting it to
the Master
Keyboard
strokes shifted .The computer was in
shifted state when last
switched .Press both SHIFT keys
The ↑ ↑ ↑ ↑ and ↓ ↓ ↓ ↓
keys do not
work in Manual
Scan
.All PCs are off or only
one PC is turned on.
Scan mode works for
power-on computers only
.Scan type is eye mark
selected but no PC is eye
mark selected in OSD. .Turn computers on.
.Press any other key to abort
Manual Scan mode.
.Set proper Scan type in OSD
and determine which PCs are
eye mark selected, do it in OSD.
Auto Scan does
not switch PC
and KVM
Switch beeps
from time to
time and red
indicator
flashes .All PCs are off or only
one PC is turned on.
Scan mode works for
power-on computers only
.Scan type is eye mark
selected but no power-up
PC is eye mark selected
in OSD. .Turn on computers
.Set proper Scan Type in OSD
and determine which PCs are
eye mark selected, do it in OSD.
.Press left CTRL key twice to
abort Auto Scan mode.
.Press any front button to select
a PC, and Auto Scan stops.
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Double OSD
images at
cascade
configuration .Improper slave
connection procedure. .Press push buttons 1 and 2
down for 2 seconds to activate
K/M RESET.
. Remove any possible power
supply to the Slave (unplug all
cables), before connecting it to
the Master.
OSD menu is
not at the
proper position .OSD menu has fixed
resolution and its size
varies due to computer
VGA resolution changes. .Use <F4>:More\Position to
select UL or UR. OSD menu
may appear near the middle of
the screen when LL or LR is
selected.
Computer can
not use serial
mouse
.Loose mouse adapter
.Incorrect mouse adapter
.Secure the mouse adapter to
computer’s COM port
.Use only the mouse adapter
comes with the unit
Can not select a
computer
connected to a
slave .Improper Master unit
connection
.Improper slave unit
connection
.Too many levels of
slaves
.Only Master ports PC1~PC8 can
be connected to slaves.
.Connect slave CONSOLE port to
PC1~PC8 ports of the Master
.Only one level of slave units is
allowed. Pop up OSD again to
check if Master recognizes the
slave connection. Look for
triangle mark and the number
before it.
The KVM
Switch fails to
function
occasionally. .Computers do not supply
enough power. .Make sure a power adapter with
minimum of 9V 500mA output
rating is firmly connected to the
power jack.