Specifications subject to change without notice
© Digital View Ltd – Doc Ver 1.00 : 13 Jan, 2021 (SP-1920-DUAL-HDMI_manual.doc)
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ASSEMBLY NOTES
This controller is designed for monitor and custom display projects using 1920x1200 or 1920x1080 or 1600x1200 or 1600x900
or 1680x1050 or 1440x900 or 1366x768 or 1280 x 1024 or 1280x800 or 1024 x 768 or or 1024x600 or 800x600 or 800x480 or
640x480 resolution TFT panels with a VGA, SVGA, WXGA, XGA, SXGA, UXGA or 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 interfaced panels with panel voltage 3.3V, 5V or 12V. Due to the
variation between manufacturers of panels 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)
2.
Controller
: Handle the controller with care as static charge may damage electronic components. Make sure correct
jumper and dip switches settings to match the target LCD panel.
3.
LCD signal cable (LVDS panel)
: In order to provide a clean signal it is recommended that LVDS signal cables are no
longer than 46cm (18 inches). If those 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 cable to minimize signal noise.
5.
Inverter
: This will be required for the backlight of an LCD, some LCD panels have an inverter built in. As LCD panels
may have 1 or more backlight tubes and the power requirements for different panel backlights may vary it is important to
match the inverter in order to obtain optimum performance. See Application notes page 20 for more information on
connection.
6.
Inverter Cables
: Different inverter models require different cables and different pin assignment. Make sure correct cable
pin out to match inverter. Using wrong cable pin out may damage the inverter.
7.
Function 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.
8.
Function 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 meter (3 feet) should be acceptable.
9.
Status LED
: The pin direction of the LED should be corrected for right colour indication. Red colour stands for standby.
Green colours stands for signal on. The status LED is an optional part only, can be unconnected.
10.
IR sensor
: It is an optional part only, can be unconnected if not using IR remote control. See Appendix IV in details.
11. RS-232 control interface :
Serial control via CN8 interface port.
13. HDMI 1 input :
Support HDMI 1.4 standard.
Plug the HDMI cable to the connector CN3 on the controller board.
14. HDMI 2 input :
Support HDMI 1.4 standard.
Plug the HDMI cable to the connector CN4 on the controller board.
15. Audio Line out (Stereo) output from HDMI :
The CN14 port supports Stereo audio line out from the HDMI audio source
inputted. The audio output will follow the HDMI audio source.
16. Power Input
: 12VDC is required, this should be a regulated supply. The power rating is depending on the panel and
inverter used. Normally, power supply with 3.5Amp current output should enough for most of 4x CCFT panels. 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.
17. Ambient light sensor connection :
Support for connection using light sensor cable P/N 426305900-3 (1250mm) and light
sensor board P/N 416021310-3 via CN6 connector. See Appendix VI in details.
18. Temperature Sensor :
This controller has the on-board temperature sensor which allow to read the temperature on board
via RS-232 query command. See Appendix VII in details.
19. Backlight status input :
2 ways connector provides interface for connection with panel which support the panel with
backlight status monitoring function.
20. USB input connector :
For media file playback (h.264) for failover function or firmware upgrade purpose via P5 connector.
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Power output
: Note the controller has an overall 3Amp current limit and the current available from the auxiliary power
output will be dependent on the power input and other system requirements.
