Knoll Systems HD290 user manual Computer connections, RS-232 connections HD108 and HD178 only

11

Computer connections

You can connect a computer’s VGA connector to the M1-DA/DVIinput on the projector using an M1-A cable.

RS-232 connections (HD108 and HD178 only)

You can control the projector from an LCD control panel or computer by connecting an RS-232 cable to the projector’s Serial control connector.

Displaying an image

Connect the power cord to the Power connector	plug in power cord
on the back plug in Power cord of the projector
and to your electrical outlet.
NOTE: Always use the power cord that shipped with the projector.
Press the Power button on the remote or keypad.
The LED flashes green and the fans start to run.	press power button
When the lamp comes on, the start-up screen is displayed

and the LED is steady green. It can take a minute for the image to achieve full brightness.

?No start up screen? Get help on page 13 Plug in, connect, and turn on your video device.

The video device’s image should appear on the turn on video device

projection screen. If it doesn’t, press the Source button on the keypad until the image appears.

?No image? Try pressing the Auto Image button on the remote. Get help on page 13.

Adjusting the image

Adjust the height of the image by tilting the projector	adjust height
up or down.

Position the projector the desired distance from the screen at a 90-degree angle to the screen.

See page 8 for a table listing screen sizes and distances		adjust distance
to the screen.
Adjust the zoom and focus.	adjust zoom (outer ring and focus
If the image is not square, adjust the keystone		adjust keystone
using the Picture menu. See page 17 for details.
Adjust the volume on your stereo receiver.		adjust volume