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SYSTEM DESIGN

A typical LCD based display system utilizing this controller is likely to comprise the following:

Summary:

LCD panel

LCD controller card, DD-1920-DUAL-DVI

LVDS cable (for connection with LVDS panel)

Inverter for LCD backlight (if not built into LCD)

Inverter cable

Function controls

Function controls cable

Status LED (Optional)

IR sensor (Optional)

10.  RS-232 control interface
11.  DVI 1/ DVI 2 signal source
12.  Power input (12VDC)

Digital View offers a range of accessories such as listed above, to make up complete display solution.

Содержание DD-1920-DUAL-DVI

Страница 1: ...roller 9 Connectors pinouts jumpers Essential connection information 16 Controller dimensions 17 Application notes 19 Troubleshooting 20 Specifications 21 Appendix I Mode Support Table 22 Appendix II RS 232 control protocols 26 Appendix III Mapping definition 28 Appendix IV DV remote control unit work for DD 1920 DUAL DVI 29 Warranty Caution Limitation of Liability Trademarks 30 Contact details It...

Страница 2: ... 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 b...

Страница 3: ...VI 3 LVDS cable for connection with LVDS panel 4 Inverter for LCD backlight if not built into LCD 5 Inverter cable 6 Function controls 7 Function controls cable 8 Status LED Optional 9 IR sensor Optional 10 RS 232 control interface 11 DVI 1 DVI 2 signal source 12 Power input 12VDC Digital View offers a range of accessories such as listed above to make up complete display solution ...

Страница 4: ...h the inverter Using wrong cable pin out may damage the inverter 6 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 7 OSD switch mount controls cable The cables to the fun...

Страница 5: ...le 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 Appli...

Страница 6: ...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 DVI cable Plug the DVI cable to the connector DVI port 1 and 2 on the controller board Power supply Controller Plug the DC 12V power in to the conn...

Страница 7: ...ess Rotary VR Brightness buttons Menu turns OSD menu On or Off it will auto time off Function with signal input only Menu button Menu button Select Select function Confirm under OSD menu on state SEL DN SEL DN Move up to select individual RGB color level OSD page under OSD menu on state SEL UP SEL UP increase the setting moves the selector to the next function under OSD menu on state decrease the ...

Страница 8: ...ht brightness Control D A PWM Selection for voltage level dimming control PWM dimming control Frequency Backlight frequency 100 440Hz in a step of 20 B L Backlight brightness adjustment Wide Screen mode DDC programming Video timing CVT timing Refer to Appendix V for the details timings support System4 4 4 4 Input Select the input video signal DVI 1 DVI 2 Autoscan Enable the Auto source seek functi...

Страница 9: ...12P 1 25H Mating type DF13 12S 1 25C Matching OSD switch mount cable P N 426122200 3 150mm or P N 426122210 3 250mm DVI 1 DVI D 1 signal input DVI D connector DVI 2 DVI D 2 signal input DVI D connector IR1 Infra Red sensor connector Molex 53261 0371 3 way 1 25mm pitch Mating type 51021 0300 Matching connection cable P N 426031500 3 LED1 Dual color LED connector for controller status JST 3 way S3B ...

Страница 10: ... JB5 Backlight control type selection 1 2 VR Digital switch mount control 3 4 Analog backlight brightness control via RS 232 command 0xe0 voltage range 0 5V 5 6 PWM Pulse Width Modulation brightness JB7 Backlight control voltage on CNB1 pin 4 Function when JB5 sets 1 2 closed Open For OSD switch mount control Default 1 2 0V 2 3 3 3V 5V controlled by JB1 JP1 Reserved Reserved for internal programmi...

Страница 11: ... 1024x768 OFF ON ON OFF LG LM151X2 1024x768 ON ON OFF ON Sharp LQ150X1LGB1 1024x768 Sharp LQ150X1LGN2A 1024x768 ON OFF ON ON NEC NL10276BC12 02 1024x768 OFF ON ON ON NEC NL10276BC13 01C 1024x768 ON ON ON ON NEC NL10276BC30 18 30 18C 1024x768 NEC NL10276BC20 08 1024x768 For SVGA panel OFF OFF ON OFF PrimeView PD104SL5H2 800x600 Sharp LQ121S1DG11 800x600 Sharp LQ104S1DG21 800x600 Sharp LQ121S1DG41 8...

Страница 12: ... of mapping A and B 3 Reserved Reserved 4 Operating mode selection OFF General application ON Work with RM DN5 firmware version E1 12 10a from HDMI port Remark Assign SW1 position 4 to ON for connection to RM DN5 Firmware version E1 12 10a from HDMI port with the following changes Add Loading message on screen while startup and stay until the valid signal Changed the default Auto Source Seek to Of...

Страница 13: ...pe XHP 5 PIN SYMBOL DESCRIPTION 1 GND Ground 2 VBKL Backlight power supply 12VDC 3A max 3 BLCTRL Backlight On Off control signal refer to JB2 JB3 4 BVR_WIP Backlight brightness VR pin WIP 5 BVR_A Backlight brightness VR pin A CNC1 OSD switch mount control Hirose DF13A 12P 1 25H Mating type DF13 12S 1 25C PIN SYMBOL DESCRIPTION 1 PSWIN Power button A 2 SW_ON Power button B 3 BVR_A Backlight Brightn...

Страница 14: ... for DDC optional 15 GND Ground 5 Analog H V Sync 16 HPD Hot plug detect 17 RX0 TMDS Data 0 18 RX0 TMDS Data 0 19 GND Digital Ground 20 NC No connection 21 NC No connection 22 GND Digital Ground 23 RXC TMDS Clock 24 RXC TMDS Clock C1 NC No connection C2 NC No connection C3 NC No connection C4 HS_IN Analog horizontal sync C5 GND Ground C6 NC No connection IR1 Infra Red sensor connector Molex 53261 ...

Страница 15: ...lock for A channel 28 TXAC Negative LVDS clock for A channel 29 GND Ground 30 TXA2 Positive differential LVDS data bit A2 31 TXA2 Negative differential LVDS data bit A2 32 TXA1 Positive differential LVDS data bit A1 33 TXA1 Negative differential LVDS data bit A1 34 TXA0 Positive differential LVDS data bit A0 35 TXA0 Negative differential LVDS data bit A0 36 GND Ground 37 NC No connection 38 NC No ...

Страница 16: ...bottom of PCB if mounting on a metal plate we also recommend a layer of suitable insulation material is added to the mounting plate surface 10mm above the components 3 5mm around the edges Any of the holes shown above can be used for mounting the PCB they are 3 2mm in diameter CAUTION Ensure adequate insulation is provided for all areas of the PCB with special attention to high voltage parts such ...

Страница 17: ...NA1 pin 1 and CNB1 pin 2 is 3A 12V Enable This is a pin provided on some inverters for On Off function and is used by this panel controller for VESA DPMS compliance If the inverter does not have an enable pin or the enable pin is not used then DPMS will not be operational Pin 3 should be matched to the inverters specification for the enable or disable pin CNB1 PIN DESCRIPTION 3 Enable Further jump...

Страница 18: ...ff is handled by a relay on the controller Example for circuit design Signal description Notes 1 R1 470ohm on board 2 RPOT is an external potentiometer in line dip style that can be plugged directly into CNC1 pins 3 4 5 RPOT must be supplied installed by user 3 BVR_B Voltage tapped from top of potentiometer the node of R1 and RPOT 4 BVR_WIP Voltage tapped from wiper arm of RPOT 5 BVR_A Voltage tap...

Страница 19: ...laced mode will probably cause the image to be the wrong size to scroll flicker badly or possibly even no image Incorrect jumper settings on the controller may cause everything from total failure to incorrect image CAUTION Do not set the panel power input incorrectly Sparkling on the display faulty panel signal cable Backlight Items to check include Power input Controls Inverter and Tubes generall...

Страница 20: ...D setting Control interface Buttons RS 232 IR remote control Settings memory Settings are stored in non volatile memory Language OSD support Graphics OSD icons Voltage output for LCD 3 3V 5V 12V The current drawn for 3 3V 5V or 12V panel from 12VDC power input is limited to 3A Input voltage 12VDC 5A max 5 Controller power consumption Approx 4W controller logic only no panel and inverter are involv...

Страница 21: ... 720 x 480i at 60Hz Doublescan 4 3 8 9 640 x 480p at 60Hz Default 4 3 1 1 640 x 480p at 60Hz Default 4 3 1 1 CVT timing Native preferred timing 1920x1080p at 60Hz 15 9 Detailed timing 1 1920x1200p at 60Hz 15 9 Detailed timing 2 1600x1200p at 60Hz 15 9 Standard timings supported 640 x 480p at 60Hz IBM VGA 800 x 600p at 60Hz VESA 1024 x 768p at 60Hz VESA 640 x 480p at 60Hz VESA STD 800 x 600p at 60H...

Страница 22: ... pressed Button equivalent Select up button 0xfb Select up button pressed Button equivalent Right button 0xfc Right button pressed Button equivalent Left button 0xfd Left button pressed Button equivalent 2 Parameter setting immediate relative reset and query Function Command Description Acknowledge if enabled Brightness control 0x81 nn r R Set brightness value increment decrement Reset Query Brigh...

Страница 23: ... 1 0 Default 3 1 6 4 2 2 Colour temperature select 0xb3 n r R Select colour temperature value Reset Query Main selected 0 user defined RGB values 1 4200K 2 5000K 3 6500K 4 7500K Default 5 9300K Red level for selected colour temperature 0xb4 nn r R Set the level of the red channel for the selected colour temp value increment decrement Reset Query Red level for selected colour temperature Range 0 0 ...

Страница 24: ...f control 0xe1 0 1 r R Set backlight brightness Disable backlight Enable backlight Reset Query Backlight on 1 off 0 Default 1 On Backlight PWM 0xe5 0 1 Set backlight type D A or PWM Query 1 PWM 0 D A Backlight PWM Frequency 0xe6 nnn Set Backlight PWM Frequency Value increment decrement Query 20Hz Value 100Hz 0 6 4 120Hz 0 7 8 140Hz 0 8 C 160Hz 0 A 0 180Hz 0 B 4 200Hz 0 C 8 220Hz 0 D C 240Hz 0 F 0 ...

Страница 25: ... nn nn Query PCBA number 0xcb 1 Read PCBA number nnnn PCBA number DD 1920 DUAL DVI 41739 Load factory defaults 0xce Reset all parameters to factory default value 1 successful Hex to ASCII conversion table Hex ASCII Hex ASCII Hex ASCII Hex ASCII 0x30 0 0x41 A 0x61 a 0x2B 0x31 1 0x42 B 0x62 b 0x2D 0x32 2 0x43 C 0x63 c 0x3F 0x33 3 0x44 D 0x64 d 0x34 4 0x45 E 0x65 e 0x35 5 0x46 F 0x66 f 0x36 6 0x47 G ...

Страница 26: ...Page 26 of 30 Appendix III Mapping definition Definition of Mapping A ...

Страница 27: ...Page 27 of 31 Definition of Mapping B ...

Страница 28: ... items in the OSD menu BUTTON Use button to direct control the hotkey function for switching to next input source In OSD menu pressing this button to adjust the settings DISPLAY BUTTON Activate the OSD menu display on screen DVI BUTTON Press this button in the non OSD menu display mode to select DVI 1 source P N 559000106 3 DigitalView remote control unit without DV logo silk screen printing P N 5...

Страница 29: ...rranties of merchantability and fitness for a particular application or purpose The stated express warranties are in lieu of all obligations or liabilities on the part of the manufacturer for damages including but not limited to special indirect consequential damages arising out of or in connection with the use of or performance of the products CAUTION Whilst care has been taken to provide as much...

Страница 30: ... House Knebworth Park Herts SG3 6PY UK Tel 44 0 20 7631 2150 Fax Fax 44 0 20 7631 2156 Sales uksales digitalview com ASIA Digital View Ltd Unit 705 708 7 F Texwood Plaza 6 How Hing Street Kwun Tong Hong Kong Tel 852 2861 3615 Fax 852 2520 2987 Sales hksales digitalview com WEBSITE www digitalview com Specifications subject to change without notice 4th issue 17 June 2019 DD 1920 DUAL DVI manual doc...

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