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digitalview ALC-1920 Instructions Manual

Hdmi, display port, usb-c interface controller for tft panel
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HDMI, DISPLAY PORT, USB-C INTERFACE CONTROLLER
CONTENTS
Page: 2. Introduction, How to Proceed, Usage Note, Disclaimer
3. System design - Diagram of a suggested system
4. Assembly notes - Important information about system elements
6. Connection & Operation - How to use the controller
10. Connectors, pinouts & jumpers - Essential connection information
24. Appendix I - Supported graphics modes table
38. Warranty, Caution & Limitation of Liability, Trademarks
It is essential that these instructions are read and understood before connecting or
powering up this controller.
Specifications subject to change without notice
© Digital View Ltd - Rev 1.00 (ALC-1920_manual.doc)
FOR TFT PANEL
Model: ALC-1920
Part number : 41787003X-5 or up
INSTRUCTIONS
Page 1 of 40

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Summary of Contents for digitalview ALC-1920

  • Page 1: Table Of Contents

    26. Appendix II – RS-232 control protocols 35. Appendix III – DDC/CI support at HDMI & Display port 36. Appendix IV – DV remote control unit work for ALC-1920 37. Appendix V – Light Sensor Function work for ALC-1920 38. Warranty, Caution & Limitation of Liability, Trademarks 39.
  • Page 2 Introduction Designed for LCD monitor and other flat panel display applications, the ALC-1920 is a feature rich interface controller for :  TFT (active matrix) LCD panels with LVDS interface of up to 1920x1200 resolutions  Support true 10 bits panel ...

  • Page 3: System Design

    SYSTEM DESIGN A typical LCD based display system utilizing this controller is likely to comprise the following: Specifications subject to change without notice © Digital View Ltd – Rev 1.00 (ALC-1920_manual.doc) Page 3 of 40...

  • Page 4: Assembly Notes

    ASSEMBLY NOTES This controller is designed for monitor and custom display projects using up to 1920x1200 resolution with LVDS interface TFT panels. 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.
  • Page 5  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. ...

  • Page 6: Connection And Operation

    Power supply & Controller: Plug the DC 12V/24V power into the PP5 connector. You can consider to use DigitalView mating power cable P/N 426013710-3, 1000mm for PP5 connection. 10. Power on: Switch on the controller board and panel by using the OSD switch mount.
  • Page 7 LCD DISPLAY SYSTEM SETTINGS NOTE: By way of explanation the following refers to a set of sample buttons that may be obtained as an option. In addition to power on/off and connection for backlight brightness the controller provides an On Screen Display of certain functions which are controlled by 5 momentary type buttons (analog VR type) or 8 momentary type buttons (digital type): Controls Digital type...
  • Page 8 OSD functions Input Source Source Select HDMI DisplayPort USB-C Auto Seek OFF :Disable the Auto source seek function ON : Enable the Auto source seek function Color Settings Gamma 1.8 / 2.0 / 2.2 / 2.4 / 2.6 [Default 2.2] Color 9300K 7500K...
  • Page 9 Other Settings Language OSD menu language selection : English French Spanish Transparency : Set OSD transparency OSD Transparency Press – or + (- + ) 0~100 [Default : 0] OSD H.Position Move the OSD menu position to the left/right position, total: 100 steps Press –...

  • Page 10: Connectors, Pinouts & Jumpers

    CONNECTORS, PINOUTS & JUMPERS The various connectors are: Summary: Connectors Purpose Description Ambient light sensor connector Hirose DF13-2P-1.25DSA (Mating type : DF13-2S-1.25C) RS-232 serial control JST 6-way, B6B-XH-A compatible (Matching type : XHP-6) CN11 SPDIF Audio output JST B2B-ZR compatible (Matching type : ZHR-2) (Matching extend cable P/N 426007400-3) CN14 Analog (Stereo) audio out with...
  • Page 11 USB-C input USB-C connector 12V/24VDC input power Molex 43045-0400 compatible (Matching connector type : Molex 43025-0400 compatible) (Matching power cable : P/N 426013710-3) All connectors used may use the compatible type. Summary: Jumpers setting Purpose Note Panel power voltage select See panel voltage setting table 1 CAUTION: Incorrect setting can damage panel...
  • Page 12 Table 1 : Panel voltage setting table : Input voltage via Panel Voltage Jumper on board 3.3V 3V3 closed 1-3 & 2-4 12VDC 5V closed 1-3 & 2-4 OPEN 5-7 & 6-8 CAUTION: Incorrect setting can damage panel & controller * Maximum current for 3.3V, 5V = 4A, Specifications subject to change without notice ©...
  • Page 13 Input voltage via Panel Voltage Jumper on board 3.3V 3V3 closed 1-3 & 2-4 5V closed 1-3 & 2-4 24VDC** 10V closed 3-5 & 4-6 12V closed 3-5 & 4-6 18V closed 3-5 & 4-6 CAUTION: Incorrect setting can damage panel & controller * Please make sure the backlight inverter must support 24V supply.
  • Page 14 JA3 & JA6 location on board : (Please pay attention to the jumper settings on JA3 & JA6 which are red in color on board) Specifications subject to change without notice © Digital View Ltd – Rev 1.00 (ALC-1920_manual.doc) Page 14 of 40...
  • Page 15 SVGA NEC NL8060BC26-35F 800x600 VGA/WVGA Mitsubishi AA104VJ02 640x480 NEC NL8048BC19-02 800x480 Others HannStar HSD190MGW1-A00 1440x900 For additional and recent added panels, see ALC-1920 panel support table at http://www.digitalview.com/controllers/csg.php Pos #5 Pos #6 Pos #7 Description WUXGA UXGA SXGA WXGA SVGA...
  • Page 16 CN6 – Ambient light sensor connector : Hirose DF13-2P-1.25DSA compatible (Mating type : DF13-2S-1.25C) SYMBOL DESCRIPTION Ambient light sensing 3.3V 3.3V CN8 – RS-232 serial control: Molex 53261-0671 compatible (Mating type : Molex 51021-0600) SYMBOL DESCRIPTION EXT_MSTR2_SCL Reserved EXT_MSTR2_SDA Reserved RS-232 Tx data Ground RS-232 Rx data...
  • Page 17 IR1 – Infra-Red sensor connector: Molex 53261-0371 or compatible (Mating type : 51021-0300) SYMBOL DESCRIPTION Ground +3.3V IR Data IR data J3 – LVDS output connector: JAE FI-RE51S-HF compatible (Matching type : JAE FI-RE51HL) SYMBOL DESCRIPTION VLCD_HV Panel power supply (+10V / 12V / 18V) (selected by JA3, JA5 & JA6) VLCD_HV Panel power supply (+10V / 12V / 18V) (selected by JA3, JA5 &...
  • Page 18 P1 – HDMI1 (HDMI 1.4) connector : HDMI connector (Type A) SYMBOL DESCRIPTION DATA2+ TMDS Data2+ DATA2S TMDS Data2 Shield DATA2- TMDS Data2– DATA1+ TMDS Data1+ DATA1S TMDS Data1 Shield DATA1- TMDS Data1– DATA0+ TMDS Data0+ DATA0S TMDS Data0 Shield DATA0- TMDS Data0–...

  • Page 19: Controller Dimensions

    Ready-made 3D Pro-E (SLDPRT) drawing files - Save time and effort for your system volumetric analysis design. Includes jpg file previews. Please go to download at https://www.digitalview.com/controllers/alc-1920-lcd-controller.html The maximum thickness of the controller is 14.65mm with or without video add-on board (measured from bottom of PCB to top of components, including any underside components &...

  • Page 20: Application Notes

    APPLICATION NOTES USING THE CONTROLLER WITHOUT BUTTONS ATTACHED This is very straightforward:  Firstly setup the controller/display system with the buttons. With controls attached and display system active make any settings for colour, tint and image position as required then switch everything off. ...
  • Page 21 Design Guideline for making VR circuitry : 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”...

  • Page 22: Troubleshooting

    TROUBLESHOOTING General A general guide to troubleshooting a flat panel display system it is worth considering the system as separate elements, such  Controller (jumpers, PC settings)  Panel (controller, cabling, connection, panel, PC settings)  Backlight (inverter, cabling, backlight tubes) ...

  • Page 23: Specifications

    SPECIFICATIONS Panel compatibility Compatible with up to 1920x1200 resolutions of TFT LCD panels with LVDS panel interface. A specified BIOS and some factory adjustment is required for individual panel timings. No. of colors Up to 3 x 10 bit providing 1.06 billion colors. Panel power DC 3.3V, 5V, 10V, 12V, 18V Panel signal...

  • Page 24: Appendix I - Signal Support Mode Table

    APPENDIX I – SIGNAL SUPPORT MODE TABLE HDMI input port (HDMI 1.4): Resolution Resolution 480p59.94 640x480 60Hz 576p50 640x480 72Hz 720p60 640x480 75Hz 720p59.94 800x600 56Hz 720p50 800x600 60Hz 720p30 800x600 72Hz 720p29.97 800x600 75Hz 720p25 1024x768 60Hz 720p24 1024x768 70Hz 720p23.976 1024x768 75Hz 1280x768 60Hz...
  • Page 25 Display port input port (DP 1.4) & USB-C : Resolution Resolution 720x480 60Hz 480p59.94 720x576 50Hz 576p50 800x600 56Hz 720p60 800x600 60Hz 720p59.94 800x600 72Hz 720p50 800x600 75Hz 720p30 1024x768 60Hz 720p29.97 1024x768 70Hz 720p25 1024x768 75Hz 720p24 1280x768 60Hz 720p23.976 1280x800 60Hz 1080p60...

  • Page 26: Appendix Ii - Rs-232 Control Protocols

    The RS-232 program can be custom-made to fit for application or it can be used the serial control program, like Accessport, Telix or Serial Utility program developed by DigitalView. Please contact your local support for information. Specifications subject to change without notice ©...
  • Page 27 1. Commands to implement switch mount control buttons Function Command Description Remark Menu button 0xf7 Menu button pressed Button equivalent Select-down 0xfa Select-down button pressed Button equivalent button Select-up button 0xfb Select-up button pressed Button equivalent Right/+ button 0xfc Right/+ button pressed Button equivalent Left/- button 0xfd...
  • Page 28 Sharpness 0x8a, Set sharpness = Sharpness. nn | “+” | “-” | nn = 0x00~ 0x64 (3 each step) “m”| value/increment/decreme “n”| “r” | “R” | Reset “?” Maximum query *1 Minimum query *1 Query Scaling Mode 0x8c, Set graphic image scaling Image expansion on/off.
  • Page 29 available "0x50,0x31" Display Port 1 “r” | “R” | “0x55,0x31” USB-C 1” “?” (Default – HDMI) Reset Query “0” – Off. Source Priority 0x99, Set exclusive or priority = “0” | “1” | “1” – On (Auto Seek) Off/On “r” | “R” | (Default –...
  • Page 30 Query Maximum query *1 Minimum query *1 “nnn” = horizontal resolution Graphic horizontal 0xb7 Horizontal resolution (in resolution enquiry pixels) in 3 digit hex number “nnn” = vertical resolution Graphic vertical 0xb8 Vertical resolution (in resolution enquiry lines) in 3 digit hex number “nnn”...
  • Page 31 340Hz : “1”,”5”,”4” 360Hz : “1”,”6”,”8” 380Hz : “1”,”7”,”C” 400Hz : “1”,”9”,”0” 420Hz : “1”,”A”,”4” 440Hz : “1”,”B”,”8” “0”– Off Backlight Invert 0xe7 Set On or Off “0” | “1” | “1”– On “R” | “r” (Default – “0”) Reset ”?”...
  • Page 32 ''0xee'', ''0x74'', Panel timing setting Set panel timing to SRAM of setting ALC-1920. If cmd 2 parameter is n = 0x3F, it dumps the values of SRAM Please note “n” is BCD decimal value in ASCII. e.g. 610 is set as 0x36 0x31...
  • Page 33 Light Sensor 0xee,0x78 Light Sensor Settings Setting “0x30”, “n” | n = “0x30”: Disable, 0x30 = Light Sensor Mode “0x31”: Enable, “0x31”, “nnn” | 0x31 = Level 1 value nnn = 0 ~ 1800 : 0x30,0x30,0x30 “0x32”, “nnn” | 0x32 = Level 2 value ~ 0x37,0x30,0x38 “0x33”, “nnn”...
  • Page 34 Color Temperature value and default value Function Command Description Acknowledge (if enabled) CopyRight 0xf8, Command "C" | Read CopyRight return "DIGITALVIEW LTD." Specifications subject to change without notice © Digital View Ltd – Rev 1.00 (ALC-1920_manual.doc) Page 34 of 40...

  • Page 35: Appendix Iii - Ddc/Ci Support At Hdmi & Display Port

    n = 1-byte ascii-coded hex number, e.g., parameter value of 0x1 is represented by “1” (0x31). mn or nn = 2-byte ascii-coded hex number, e.g., parameter value of 0x1e is represented by “1”, “e” | “E” (0x31, 0x6e|0x4e). The RS-232 command strings sent in one time can support up to 380 bytes via the CN8 port The RS-232 command string sent in one time can support up to 50 bytes via J1 port.

  • Page 36: Appendix Iv - Dv Remote Control Unit Work For Alc-1920

    Appendix IV – DV remote control unit work for ALC-1920 P/N 5590001xx-3 : DigitalView remote control unit (without DV logo silk screen printing) BUTTON FUNCTION POWER BUTTON Soft power ON/OFF button. 1. In OSD menu, pressing "SEL UP" button to move previous level of selection.

  • Page 37: Appendix V - Light Sensor Function Work For Alc-1920

    Use of the light sensor board P/N 416021310/416021330-3 and light sensor cable P/N 426305900-3 connect to the ALC-1920 via CN6 connector or use the light sensor cable P/N 426321940-3 as shown below : Digital View provides a user-friendly software program (TCP-IP Serial Utility V1.14 or later...

  • Page 38: Warranty

    TRADEMARKS The following are trademarks of Digital View Ltd:  Digital View  ALC-1920 Specifications subject to change without notice © Digital View Ltd – Rev 1.00 (ALC-1920_manual.doc) Page 38 of 40...

  • Page 39: Contact Details

    Digital View Inc. 18440 Technology Drive Building 130 Morgan Hill, California, 95037 Tel: (1) 408-782 7773 Fax: (1) 408-782 7883 Sales: ussales@digitalview.com EUROPE Digital View Ltd. The Lake House Knebworth Park Herts, SG3 6PY Tel: +44-(0)20-7631-2150 Fax: Fax: +44-(0)20-7631-2156 Sales: uksales@digitalview.com...

  • Page 40: Revision History

    Revision History Date Rev No. Page Summary 14 March 2025 1.00 First issued Specifications subject to change without notice © Digital View Ltd – Rev 1.00 (ALC-1920_manual.doc) Page 40 of 40...

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