3M ET 350 Car Video System User Manual


 
Appendix B: Installing monitor with KVM extender
59
If the length of cable between the local and remote units is near the
high end of one of the ranges and you are using high-resolution video
(1024 x 768), try setting jumpers for the next higher cable length.
This might help improve video compensation.
5. To fine-tune the display image after setting the jumpers, adjust the
Brightness and Focus rotary controls. The controls are on the KVM
remote unit inside the hatch of the ET 350 monitor (see Figure 23 on
page 61).
Keyboard and mouse control
The ET 350 monitor DIP-Switch SW1 on the KVM extender board is set
to off (see Figure 22). With this setting, the monitor user can take control
by pressing a key on the keyboard or by moving the mouse.
If you prefer that users not be able to take control simply by typing on the
keyboard, the DIP-Switch will need to be switched to the on position.
To change the DIP-Switch setting:
1. Put on an electrostatic discharge (ESD) grounding wrist strap.
2. Make sure that the monitor and host computer are powered off.
3. Open the monitor enclosure.
If your unit has security screws on the back of the bezel, remove
them with a security screwdriver (the locations of the security
screws are shown in Figure 13 on page 38).
Apply a 5/32-inch (4 mm) Allen key to the latch screw on the top
of the enclosure. Turn the key counterclockwise ¼ turn, or until
you feel the unit opening.
4. Find the bracket covering the main circuit board of the remote KVM
extender unit (see Figure 22 on page 57).
5. Remove the three screws holding the bracket.
Important
The DIP-Switch default setting for the ET 350 is off. This is different from the
default setting that appears in the KVM extender manufacturer’s manual.
Important
To prevent damage from electrostatic discharge (ESD), wear a grounding wrist
strap when working with electronic components inside the enclosure. Follow
the instructions that come with the wrist strap. If a grounding wrist strap is not
available, touch a grounded metal object to discharge any static from your
body.