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17. Audio Jack (Stereo) output from HDMI / Display Port / SDI input :
This port support Stereo audio output from the HDMI
/ Display Port / SDI audio source inputted. The audio handling is same as HD-3000 where 2 channels (stereo) of
audio converted to HDMI output. Then the same HDMI audio handling as on the standard ALR-1920. It requires to select the
appropriate input source and select the audio port “SPEAKERS” via OSD menu under “Sound” > “Output” OSD menu page.
18. Audio output (Stereo) with amplication from HDMI / Display Port / SDI input :
This port support Stereo audio output
from the HDMI / Display Port / SDI audio source inputted. The audio handling is same as HD-3000 where 2 channels (stereo) of
audio converted to HDMI output. Then the same HDMI audio handling as on the standard ALR-1920. It requires to select the
appropriate input source and select the audio port “SPEAKERS” via OSD menu under “Sound” > “Output” OSD menu page.
This audio output will disable when audio jack (J1) being plugged.
19. SPDIF Audio output :
This port support SPDIF audio output from the HDMI / Display Port / SDI audio source inputted.
The audio handling is same as HD-3000 where 2 channels (stereo) of audio converted to HDMI output. Then the same HDMI
audio handling as on the standard ALR-1920. It requires to select the appropriate input source and select the audio port
“SPDIF” via OSD menu under “Sound” > “Output” OSD menu page.
20. Backlight status input :
It only functions when connecting with the panel which support backlight status detection pin.
21. Power Input
: 12VDC is required, this should be a regulated supply. Although the controller provides power regulation for
the LCD power this does not relate to the power supplied to the backlight inverter. If an unregulated power supply is provided to
an inverter any fluctuations in power may affect operation, performance and lifetime of the inverter and or backlight tubes.
•
Power
Safety
: Note that although only 12VDC is supplied as ‘power-in’ a backlight inverter for panel backlighting
produces significantly higher voltages (the inverter does not connect to the ground plane). We strongly advise appropriate
insulation for all circuitry.
•
EMI
: Shielding will be required for passing certain regulatory emissions tests. Also the choice of external Controller to PC
signal cable can affect the result.
•
Ground
: The various PCB mounting holes are connected to the ground plane.
•
Servicing
: The board is not user serviceable or repairable. Warranty does not cover user error in connecting up to the
controller and is invalidated by unauthorized modification or repairs.
•
Controller
Mounting
: It is recommended that a clearance of at least 10mm is provided above and 5mm below the
controller when mounted. Additionally consideration should be given to:
•
Electrical
insulation.
•
Grounding.
•
EMI
shielding.
•
Cable management. Note: It is important to keep panel signal cables apart from the inverter & backlight cables to
prevent signal interference.
•
Heat & Ventilation: Heat generated from other sources, for example the backlight of a very high brightness panel may
generate significant heat which could adversely affect the controller.
•
Other issues that may affect safety or performance.
•
PC Graphics Output
: A few guidelines:
•
Signal quality is very important, if there is noise or instability in the PC graphics output this may result in visible noise
on the display.
•
Refer to graphics modes table in specifications section for supported modes.
•
Non-interlaced & interlaced video input is acceptable.
IMPORTANT: Please read the Application Notes section for more information.
