Black Box ServSwitch SW721AE-R2, Руководство пользователя

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37
E. If no cable connectors are loose, begin swapping your cable, one at a time. If
the problem goes away when you substitute a cable, the old cable is probably
defective.
F. If swapping cables doesn’t solve the problem, try plugging the CPU into a
different CPU port on the ServSwitch. If the problem goes away when the
CPU is connected to a different port, the old port is probably defective.
5.3.10 Y
OUR
V
IDEO IS
OK
IN
L
OW
-R
ESOLUTION
M
ODE
, B
UT
Y
OU
C
AN
’
T
G
ET
I
NTO
H
IGH
-
R
ESOLUTION
M
ODE
A. If you’re using XGA, you must use coaxial cables (see Section 4.1.3 and
Appendix B ).
B. Check your video driver. It might not be set up correctly for your desired
resolution.
5.3.11 Y
OU
C
AN
’
T
S
EEM TO
S
CAN OR
S
WITCH TO
O
NE OR
M
ORE OF
Y
OUR
CPU
S
A. The Units value might not be set correctly. (If any of the CPUs you can access
are receiving garbage characters, this is a good indicator.) Try setting it now
(see
Section 4.3.10 ).
B. If issuing the command doesn’t help, the SCAN button of a ServSwitch might
have been in the wrong (“in”) position when the unit was powered up. Try
turning OFF the attached CPUs, turning OFF the ServSwitch, putting the
button(s) in the “out” position, turning ON the ServSwitch, and rebooting
the attached CPUs.
5.3.12 T
HE
S
ERV
S
WITCH
D
OESN
’
T
W
ORK WITH
Y
OUR
D
OCKING
S
TATION
At the time of this writing, the ServSwitch does not support docking stations for
portable computers.
5.3.13 T
HE
S
ERV
S
WITCH
D
OESN
’
T
W
ORK WITH
Y
OUR
D
ONGLE
-P
ROTECTED
S
OFTWARE
At the time of this writing, the ServSwitch does not support dongles (the devices
required to be inserted into the keyboard line by some software for copy
protection).
5.4 Calling Black Box
If you determine that your ServSwitch is malfunctioning, do not attempt to alter or
repair the unit. It contains no user-serviceable parts. Contact Black Box at 724-746-
5500.
CHAPTER 5: Troubleshooting