Extron Electronics VKM01_02_03 - Manual (Page 13)

9
VKM01 Video / Keyboard / Mouse Extender System Operation Manual - Preliminary 02/18/00 ©2000 - INLINE, INC.
Solution 1: Check the LEDs on the front of the unit. If they are off, make sure the power button on
the back of the VKM03 is on. If the LEDs do not engage, see Problem 5.
Solution 2: Make sure that the keyboard / mouse / VGA cable is securely seated in the proper
VKM03 output port.
Solution 3: Make sure that the CAT5 cable is securely seated in the CAT5 LINK receptacle at both
modules.
Solution 4: (Keyboard and mouse only) See Problem 4.
If keyboard / mouse / monitor problems persist, test the peripheral by
plugging it directly into the CPU or another computer. If the unit(s)
continues to malfunction it is probably defective and should be replaced.
Note: Before unplugging / replacing the component in question, make sure
that the computer, monitor(s) and VKM03 are turned off.
Problem 3: The video quality of the monitor connected to the VKM03 Remote Module is very
poor.
Solution 1: Make sure that the VGA cable is securely seated in the VKM03 video output port.
Solution 2: Make sure that the CAT5 cable is securely seated in the CAT5 LINK receptacle at both
modules.
Solution 3: Adjust the VGC on the back of the VKM03 to increase / decrease the cable
compensation until an acceptable video image appears.
Solution 4: Although CAT5 cable significantly reduces signal loss associated with long cable runs, it
does have its limits. The table on page 2 provides the maximum recommended cable
lengths for the VKM01 system using CAT5 cable.
Problem 4: The VKM02 local module was plugged into the CPU while it was already powered
up, the mouse / keyboard was accidentally unplugged, or power to the VKM03 has
been turned off. The mouse / keyboard is either not responding or the mouse is
responding erratically.
Solution: All components in the VKM01 system must be OFF during installation. In the event that
components are connected / disconnected while the computer is ON (or the peripherals are
powered-up in the wrong sequence), the mouse / keyboard may have to be re-enabled / re-
synchronized. See the KEY CONCEPT at the bottom of page 3 for the correct power-up
sequence.
If the mouse is not responding:
•
Press and release the Ctrl key, and type the letter R. This will initialize the mouse.
•
Press and release the Shift key, and type the letter R. This will enable the mouse.
•
If the problem persists, refer to Problems 2 or 5.
If the mouse responds erratically:
•
Press and release the Ctrl key, and type the letter N. This will re-synchronize the mouse.
If the mouse is two bytes out of sync, the procedure must be repeated.
Note: Issuing this command while the mouse is in sync will throw it off track.
Issuing the Ctrl N command twice will re-synchronize the mouse.
If the keyboard is not responding:
(In order to rectify this problem, the keyboard must first be disabled)
•
Press and release the Shift key, and type the letter Z. This will disable the keyboard.
•
Press and release the Shift key, and type the letter Y. This will re-enable the keyboard.
Problem 5: The VKM03 power switch is on but there is no response from the keyboard, mouse
or local monitor, and the LEDs are dark.