Support VGA input up to 1080p/WUXGA input resolution
Ordering information :
Controller
DD-1920-VGA
Part number
P/N 41743000X-3
Ordering part number
P/N 4174300XX-3
HOW TO PROCEED
Ensure you have all parts & that they are correct, refer to:
Connection diagram (separate document for each panel)
Connector reference (in following section)
Assembly notes
Check controller switch & jumper settings (errors may damage the panel)
Prepare the PC
Connect the parts
Understand the operation and functions (in following section)
IMPORTANT USAGE NOTE
This product is for use by system developers and integrators, the manufacturer accepts no liability for damage or injury caused by the use
of this product. It is the responsibility of the developer, integrators or other user of this product to:
Ensure that all necessary and appropriate safety measures are taken.
Obtain suitable regulatory approvals as may be required.
Check power settings to all component parts before connection.
Understand the operation and connectivity requirements of this controller.
DISCLAIMER
There is no implied or expressed warranty regarding this material.
Page 2 of 32
SYSTEM DESIGN
A typical LCD based display system utilising this controller is likely to comprise the following:
Summary:
1. LCD panel
2. Inverter for LCD backlight (if not built into LCD)
3. Inverter cable
4. Power input (12VDC)
5. RS-232 control interface
6. IR sensor (Optional)
7. Function controls cable
8. VGAI signal source
9. Function controls
10. LVDS cable (for connection with LVDS panel)
11. LCD controller card, DD-1920-VGA
Digital View offers a range of accessories such as listed above, to make up complete display solution.
Page 3 of 31
ASSEMBLY NOTES
This controller is designed for monitor and custom display projects using 1920 x 1200, 1920 x 1080, 1920 x 480, 1680x1050, 1600x1200, 1400x1050,
1440x900, 1366x768, 1280x1024, 1280x800, 1280x768, 1024x768, 1024x600, 800x600, 800x480, 640x480, 480x640 resolution TFT panels with a
VGA, SVGA, XGA, SXGA, UXGA, WUXGA signal input. The following provides some guidelines for installation and preparation of a finished display
solution.
Preparation:
Before proceeding it is important to familiarize yourself with the parts making up the system and the various connectors, mounting holes
and general layout of the controller. As much as possible connectors have been labeled. Guides to connectors and mounting holes are shown in the
following relevant sections.
1.
LCD Panel:
This controller is designed for typical LVDS interface TFT panels with panel voltage 3.3V or 5V or 12V LVDS interface. Due to
the variation between manufacturers of signal timing and other panel characteristics factory setup and confirmation should be obtained
before connecting to a panel.
(NOTE: Check panel power jumper settings before connection)
Inverter:
This will be required for the backlight of an LCD, some LCD panels have an inverter built in. As panels may have 1 or more
backlight tubes and the power requirements for different panel models backlights may vary it is important to match the inverter in order to
obtain optimum performance. See page 15 for the Application notes “Inverter connection section for more informations.
Inverter Cables:
Different inverter models require different cables and different pin assignment. Make sure correct cable pin out to match
the inverter. Using wrong cable pin out may damage the inverter.
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.
S-232 control interface:
Firmware upgrade and serial control via this interface port.
It is an optional part only, can be unconnected if not using IR remote control. See Appendix V for button definition.
OSD switch mount controls cable:
The cables to the function switches should be of suitable quality and length so that impedance does
not affect performance. Generally lengths up to 1 metre (3 feet) should be acceptable.
VGA INPUT:
Support VGA input up to 1080p/WUXGA resolution.
OSD switch mount controls:
The following section discusses the controls required and the section on connectors provides the detail. The
controls are minimal: On/Off, Backlight Brightness (depends on inverter), OSD (5 momentary buttons) analog VR type or (8 momentary
buttons) digital type.
2.
3.
4.
5.
6.
7.
8.
9.
10.
LVDS signal cable:
In order to provide a clean signal it is recommended that LVDS signal cables are no longer than 46cm (18 inches). If
loose wire cabling is utilized these can be made into a harness with cable ties. Care should be taken when placing the cables to avoid
signal interference. Additionally it may be necessary in some systems to add ferrite cores to the cables to minimize signal noise.
11.
Controller card:
Handle the controller card with care as static charge may damage electronic components.
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.
IMPORTANT: Please read the Application Notes section for more information
Page 4 of 32
CONNECTION & OPERATION
CAUTION:
Never connect or disconnect parts of the display system when the system is powered up as this may cause serious damage.
CONNECTION
Connection and usage is quite straight forward (it is useful to have the relevant connection diagram available at this time):
LCD panel & Inverter:
Connect the inverter (if it is not built-in the panel) to the CCFT lead connector of the LCD panel.
LVDS type panels:
Plug the LVDS signal cable direct to J3. Insert the panel end of the cable to the LCD panel connector.
Inverter & Controller:
Plug the inverter cable to CNB1 and CNA1 (if necessary). Plug another end to the connector on the inverter.
Function switch & Controller:
Plug the OSD switch mount cable to CNC1 on the controller board and another end to the OSD switch mount.
IR & Controller:
Plug in a 3-way with IR sensor to connector IR1 on the controller board.
Jumpers :
Check all jumpers are set correctly. Details referring the connection diagram.
Jumpers & Inverter & Panel voltage:
Particularly pay attention to the settings of JA3, JB1, JB2, JB3. JB2 & JB3 are used for inverter control (read
inverter specification and information on the jumper table to define the correct settings). JA3 is used for panel voltage input (read panel specification
and information on the jumper table to define the correct settings).
VGA cable :
Plug the VGA cable to the connector P1 on the controller board.
Power supply & Controller:
Plug the DC 12V power in to the connector PP2. You can consider to use DigitalView mating power cable P/N
426013800-3, 160mm.
Power on:
Switch on the controller board and panel by using the OSD switch mount.
CAUTION:
Never connect or disconnect parts of the display system when the system is powered up as this may cause serious damage.
General:
If you are using supplied cables & accessories, ensure they are correct for the model of panel and controller.
If you are making your own cables & connectors refer carefully to both the panel & inverter specifications and the section in this manual,
“Connectors, Pinouts & Jumpers” to ensure the correct pin to pin wiring.
OPERATION
Once the system has been connected and switched on there are a number of functions available to adjust the display image as summarized in
the following sections. The settings chosen will be saved for each mode independently.
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