ALTINEX DA1907SX User Manual

400-0045-005

Step 1. Connect the 9V 500mA AC adapter’s 

output plug to the DA1907SX’s power 
input connector - 2.5 mm DC Jack. Verify 
the LED in the top right corner of the unit 
on the front panel turn on and RED. 

Step 2. Remove the protective port covers. 

Connect the video output from the 
computer to the computer input connector 
on the DA1907SX using the provided 
input VGA cable. If a longer cable is 
required, please make sure that the cable 
has video signals through coaxial cables 
and this cable is not excessively long.

Step 3. Verify the LED on the face of the unit has

changes from RED to GREEN, indicating 
an active source is applied. If the LED is 
not green, the computer may not be 
sending video signals.  Check your 
Computer’s manual if you are using a 
laptop computer. You may have to send a 
command that instructs the laptop to 
output to the internal display and the 
external video port simultaneously.

Step 4. Connect your display device (monitor or 

projector) to the Main output. If needed, 
connect a monitor to the Local Monitor 
output port.

Step 5. Verify the picture quality on all displays is 

good. If you are not receiving a signal, 
make sure that the display is compatible 
with the resolution of the computer 
graphics card.  Note: High levels of static 
discharge under some conditions may 
shutdown the unit. To reset the unit 
simply, disconnect the input cable and 
reconnect it.

There are no adjustments necessary to operate the 
DA1907SX, the unit will operate successfully as 
long as cables are attached properly and other 
technical specifications are followed.

The  DA1907SX offers a special LED on the front 
panel that provides feedback to the user. When 
power is connected to the DA1907SX, the LED will 
turn RED. The LED will turn GREEN when an 
active computer source is connected. This indicates 
that it is receiving a proper signal by sensing the 
presence of the sync portion of that signal.

We have carefully tested and have found no 
problems in the supplied  DA1907SX; however, we 
would like to offer suggestions for the following:

The LED should be ON and RED when power is 
applied and there is no video signal present. If 
the LED is ON and GREEN, the unit is receiving 
power and a SYNC signal.

Verify the Altinex supplied adapter is 
plugged into a working AC outlet 
and that the outlet has power.

Verify the DC power plug coming 
from the AC adapter is plugged all 
the way into the DA1907SX.

If there is AC power to the adapter 
and the LED still does not turn on, 
the DA1907SX or the power adapter 
may require service. Call ALTINEX 
at (714) 990-2300.