PC, HDMI, DISPLAY PORT INTERFACE CONTROLLER FOR TFT PANEL Model: ALR-1920 Part number : 41727001X/2X-3 or up INSTRUCTIONS 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 19. Controller dimensions 20. Application notes 22. Troubleshooting 23.
Introduction Designed for LCD monitor and other flat panel display applications, the ALR-1920 controller provides easy to use interface controller for: ¾ ¾ ¾ ¾ ¾ TFT (active matrix) LCDs with LVDS interface of 1920x1200, 1920x1080, 1920x480, 1680x1050, 1600x1200, 1400x1050, 1440x900, 1366x768, 1280x1024, 1280x800, 1280x768, 1024x768, 1024x600, 960x960, 800x600, 800x480, 640x480 resolution Computer video signals of WUXGA, UXGA, SXGA, XGA, SVGA, VGA standard Support HDMI, VGA, Display port input Support LVDS
SYSTEM DESIGN A typical LCD based display system utilising this controller is likely to comprise the following: Summary: 1. LCD panel 2. LCD controller card, ALR-1920 3. LVDS cable (for connection with LVDS panel) 4. Inverter for backlight (if not built into LCD) 5. Inverter cable 6. OSD switch mount control 7. OSD controls cable 8. Optional Controller status LED1 9. Optional Backlight status LED2 10. Optional IR sensor 11. RS-232 control port 12. Analog VGA input 13. HDMI input 14. Display Port Input 15.
ASSEMBLY NOTES This controller is designed for monitor and custom display projects using 1920 x 1200, 1920 x 1080, 1920x480, 1680x1050, 1600x1200, 1400x1050, 1440x900, 1366x768, 1280x1024, 1280x800, 1280x768, 1024x768, 1024x600, 800x600, 800x480, 640x480 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.
16. Audio output (Stereo) with amplication from HDMI / Display Port : This port support Stereo audio output from the HDMI / Display Port audio source inputted. This port has the same audio path output from J1. It requires to select the audio port “Speakers” via OSD menu under “Sound” > “Output” OSD menu page. Start from P/N 417270020-3 or up version, the board supports disable speaker out(CN1) while stereo jack(J1) being plugged. 17.
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): 1. LCD panel & Inverter: Connect the inverter (if it is not built-in the panel) to the CCFT lead connector of the LCD panel. 2. LVDS type panels: Plug the LVDS signal cable direct to J3 (if necessary).
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.
OSD Functions Image Brightness Contrast Sharpness Color Increase/decrease brightness level. Press – or + (- + ) Total : 100 steps Increase/decrease contrast level. Press – or + (+ ) Total : 100 steps Increase/decrease sharpness level. Press – or + (+ ) Total : 8 steps Auto : Auto RGB Calibration ([See appendix V] in details) (Function in ARGB mode only) Color temp4 (Adjust the warmness of the image displayed. The higher temperature the coolest image looks like.
Rotation : OSD menu rotation in degree 0 90 180 270 Position : Adjust OSD menu position Transparency : Set OSD transparency Press – or + (- + ) Total : 100 steps Reset : Load factory default settings. Press down on OSD keypad to factory reset [Firmware version : V1.16.00 or up] Remark : ** - Only effective on V1.10.00 or up version. Items marked 4 have sub menus.
CONNECTORS, PINOUTS & JUMPERS The various connectors are: Summary: Connectors Ref Purpose CN1 Audio output (Stereo) with amplication from HDMI / Display port CN8 Serial control CN11 SPDIF Audio Output CNA1 Auxiliary power output CNB1 Backlight inverter CNB2 Backlight status input CNC1 OSD controls IR1 LED1 LED2 J1 J3 P1 P3 P4 PP2 Infra-Red sensor connector Dual color LED connector for controller status Dual color LED connector for backlight status Audio jack (Stereo) output from HDMI / Display
Summary: Jumpers setting Ref Purpose JA1 On board +5V logic power enable JA3 Panel power voltage select JA6 Panel power voltage select JB1 Backlight brightness voltage range JB2 Backlight inverter on/off control – signal level JB3 Backlight inverter on/off control – polarity JB5 Backlight control type selection JB6 Backlight status JP1 Reserved JP6 Input power control SW1 SW2 Panel selection Panel selection Table 1 : Panel voltage setting table : Input voltage via PP2 Panel Voltage 12VDC
Input voltage via PP2 Panel Voltage JA3 JA6 3.3V 3V3 closed 1-3 & 2-4 5V 5V closed 1-3 & 2-4 12V 12V closed 3-5 & 4-6 18V 18V closed 3-5 & 4-6 Jumper on board 24VDC** ** Please make sure the backlight inverter must support 24V supply. Because CNA1 pin 1 and CNB1 pin 2 will output 24VDC if input 24VDC via PP2.
DIP Switch selection – SW1 Pos #1 Pos #2 Pos #3 Pos.
Pos #5 OFF ON OFF ON OFF ON OFF ON Pos #6 OFF OFF ON ON OFF OFF ON ON Pos #7 OFF OFF OFF OFF ON ON ON ON Description WUXGA UXGA SXGA WXGA XGA SVGA VGA / WVGA Others SW1 Pos 8 = Reserved. DIP switch selection – SW2 Pos. # Function 1 Panel pixel format Description OFF : Double Pixel ON : Single Pixel 2 LVDS data mapping select ON : Mapping A (LVDS panel) OFF : Mapping B (LVDS panel) Please adjust to get the correct picture. See as Appendix IV for details of mapping A and B.
CN1 – Audio output (Stereo) with amplication from HDMI / Display port : JST 4-way, S4B-ZR-SM4A (Mating type : ZHR-4) PIN SYMBOL DESCRIPTION 1 AMP LAudio Left channel (Negative) 2 AMP L+ Audio Left channel (Positive) 3 AMP RAudio Right channel (Negative) 4 AMP R+ Audio Right (Positive) CN8 – RS-232 serial control: Molex 53261-0671, 6 ways 1.
J3 – LVDS output connector: JAE FI-RE51S-HF (Matching type : JAE FI-RE51HL) PIN SYMBOL DESCRIPTION 1 VDD (+12V/18V) Panel power supply (+12V / 18V) (selected by JA3 & JA6) 2 VDD (+12V/18V) Panel power supply (+12V / 18V) (selected by JA3 & JA6) 3 VDD (+12V/18V) Panel power supply (+12V / 18V) (selected by JA3 & JA6) 4 VDD (+12V/18V) Panel power supply (+12V / 18V) (selected by JA3 & JA6) 5 VDD (+12V/18V) Panel power supply (+12V / 18V) (selected by JA3 & JA6) 6 VDD (3,3V/5V) Panel power supply (3,3V/5V) (se
LED1 – Dual color LED connector for controller status, JST 3-way, S3B-ZR-SM4A PIN DESCRIPTION 1 Green LED pin (anode) 2 LED pin common (cathode) 3 Red LED pin (anode) (Mating type : JST ZHR-3) LED2 – Dual color LED connector for backlight status, JST 3-way, S3B-ZR-SM4A PIN DESCRIPTION 1 Green LED pin (anode) 2 LED pin common (cathode) 3 Red LED pin (anode) (Mating type : JST ZHR-3) P1 - Analog VGA input – DB-15 way high density 3 row PIN SYMBOL 1 PCR 2 PCG 3 PCB 4 ID2 5 DGND 6 AGND 7 AGND 8 AGND 9 DDC_5
P4 – Display Port input PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 PP2 - Power supply PIN 1 2 SYMBOL ML_Lane 0 (p) GND ML_Lane 0 (n) ML_Lane 1 (p) GND ML_Lane 1 (n) ML_Lane 2 (p) GND ML_Lane 2 (n) ML_Lane 3 (p) GND ML_Lane 3 (n) CONFIG1 CONFIG2 AUX CH (p) GND AUX CH (n) Hot Plug GND DP_PWR DESCRIPTION Lane 0 (positive) Ground Lane 0 (negative) Lane 1 (positive) Ground Lane 1 (negative) Lane 2 (positive) Ground Lane 2 (negative) Lane 3 (positive) Ground Lane 3 (negative) 1) connected to Ground
CONTROLLER DIMENSIONS The maximum thickness of the controller is 15.8mm (measured from bottom of PCB to top of components, including any underside components & leads). We recommend clearances of: • 5mm from 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.
APPLICATION NOTES USING THE CONTROLLER WITHOUT BUTTONS ATTACHED This is very straightforward by following the steps below : • Firstly setup the controller/display system with the buttons. With controls attached and display system active make any settings for colour and image position as required then switch everything off. • Use a jumper to close JP6 jumper, this will fix the board On.
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” of potentiometer, the node of R1 and RPOT. 4) BVR_WIP : Voltage tapped from wiper arm of RPOT. 5) BVR_A : Voltage tapped from “bottom” of RPOT. Note : BVR_A voltage is left floating on the controller board.
TROUBLESHOOTING General A general guide to troubleshooting a flat panel display system it is worth considering the system as separate elements, such as: ¾ Controller (jumpers, PC settings) ¾ Panel (controller, cabling, connection, panel, PC settings) ¾ Backlight (inverter, cabling, backlight tubes) ¾ Cabling ¾ Computer system (display settings, operating system) Through step by step cross checking with instruction manuals and a process of elimination to isolate the problem it is usually possible to clearly
SPECIFICATIONS Panel compatibility No.
Appendix I – Mode Support Table ARGB (P1) port : Mode Resolution Vertical freq [Hz] Sync Mode T_70 720x400 70Hz 28.322 31.469 70.087 Digital Separate Sync T_70 720x400 70Hz 28.322 31.469 70.087 Sync On Green V_60 640x480 60Hz 25.175 31.469 59.940 Digital Separate Sync V_60 640x480 60Hz 25.175 31.469 59.940 Sync On Green V_60 640x480 60Hz 25.175 31.469 59.940 Composite Sync SV_60 800x600 60Hz 40.000 37.879 60.317 Digital Separate Sync SV_60 800x600 60Hz 40.000 37.
HDMI (P3) port : Mode Resolution Clk [MHz] Horizontal freq [KHz] Vertical freq [Hz] T_70 V_60 SV_60 X_60 SX_60 720x400 70Hz 640x480 60Hz 800x600 60Hz 1024x768 60Hz 1280x1024 60Hz 28.322 25.175 40.000 65.000 108 31.469 31.469 37.879 48.363 63.81 70.087 59.940 60.317 60.004 60.020 UX_60 WUX_60 WUX_60 1080p60 1080i60 1080i50 720p60 576p50 1600x1200 60Hz 1920x1080 60Hz 1920x1200 60Hz 1920x1080p 60Hz 1920x1080i 60Hz 1920x1080i 50Hz 1280x720P 60Hz 720x576P 50Hz 162 172.8 193.2 135 74.14 74.184 74.
Appendix II – RS-232 control protocols RS-232 Serial control (Baud rate 2400, 8 bits, 1 stop bit and no parity) Physical connection : Controller side Connector interface : CN8 Mating connector : Molex 51021-0600 6 5 PIN# 4 5 6 4 1 3 Mating face of CN8 Description RS-232 Tx Data Ground RS-232 Rx Data Computer side Connector interface : Serial port Mating connector : DB9 Female 1 4 3 6 7 8 PIN# 2 3 5 5 9 Mating face of RS-232 DB9 Male Description RS-232 Rx Data RS-232 Tx Data Ground Software
Sharpness Frequency # OSD Rotation OSD H position OSD V position 0x8a, nn | “+” | “-” |”r” | ”R” | “?” 0x8b, nnnn | “+” | “-“ | “?” 0x8f, “0” | “1” | “2” | “3“ | “r” | “R” | “?” Set sharpness= value/increment/decrement Reset Query Frequency = value/increment/decrement Query Set OSD rotate= 0/90/180/270 Reset Query 0x90, nnn | “+” | “-“ | “r” | “R” | “?” Set osd_hpos = value/increment/decrement Reset Query Set osd_vpos = value/increment/decrement Reset Query Select menu timeout = value/increment/decr
OSD status enquiry Backlight brightness control “?” 0xbb Query Status of OSD 0xe0, nn | “+” | “-” | “r” | “R” | “?” Set backlight brightness = value/increment/decrement Reset Query Default: “6””4” “0” – OSD turned off “1” – OSD turned on Backlight brightness. Range: “0””0”-“6””4” Default: “6””4” e.
3. Other control Function Select RS-232 acknowledge Auto-setup # Command 0xc1, “0” | “1” 0xc3 Command availability Auto-calibration # 0xc4, n Soft Power On/Off 0xc8, “0” | “1” | “?” 0xcb, “0” 0xc5 Query BIOS version Query PCBA 0xcb, “1” number Load factory 0xce defaults # - Function in ARGB mode only Description Disable/enable command acknowledge. Start auto-setup of current vmode. Check whether a command is available. Start auto-calibration of gain of the RGB amplifier.
Hex to ASCII conversion table Hex ASCII Hex 0x30 0 0x41 0x31 1 0x42 0x32 2 0x43 0x33 3 0x44 0x34 4 0x45 0x35 5 0x46 0x36 6 0x47 0x37 7 0x48 0x38 8 0x49 0x39 9 0x4A 0x4B 0x4C 0x4D 0x4E 0x4F 0x50 0x51 0x52 0x53 0x54 0x55 0x56 0x57 0x58 0x59 0x5A ASCII A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Hex 0x61 0x62 0x63 0x64 0x65 0x66 0x67 0x68 0x69 0x6A 0x6B 0x6C 0x6D 0x6E 0x6F 0x70 0x71 0x72 0x73 0x74 0x75 0x76 0x77 0x78 0x79 0x7A ASCII a b c d e f g h i j k l m n o p q r s t u v w x y z Hex 0x2B 0x2D
Appendix IV – Mapping definition • Definition of Mapping A : Page 31 of 36
• Definition of Mapping B : Page 32 of 36
Appendix V – Auto Color Gain The Auto Color Gain function is supported in the ARGB mode only and is designed to calibrate the controller to the incoming video signal. In order to calibrate correctly, the display must be displaying an image containing both black and white data (see illustration below) when the function is used. The internal processor of the video controller chip will then execute a process to adjust the relative values of the RGB signals to achieve the best performance.
Appendix VI – DV remote control unit work for ALR-1920 P/N 559000106-3 : DigitalView remote control unit (without DV logo silk screen printing) P/N 559000105-3 : DigitalView remote control unit (with DigitalView logo silk screen printing) BUTTON POWER BUTTON FUNCTION Soft power ON/OFF button. Use combined with digit keys to enable/disable the IR function. ALR-1920 : “Attention” + “1” ATTENTION BUTTON MUTE BUTTON ( + / - BUTTON DISPLAY BUTTON STOP (VGA) BUTTON HDMI BUTTON Switch to mute on/off mode.
WARRANTY The products are warranted against defects in workmanship and material for a period of three (3) year from the date of purchase provided no modifications are made to it and it is operated under normal conditions and in compliance with the instruction manual. The warranty does not apply to: • Product that has been installed incorrectly, this specifically includes but is not limited to cases where electrical short circuit is caused.
CONTACT DETAILS Digital View has offices in Asia, Europe and USA also an internet site: ASIA Digital View Ltd th 16 Floor Millennium City 3 370 Kwun Tong Road Kwun Tong Hong Kong Tel: (852) 2861 3615 Fax: (852) 2520 2987 Sales: hksales@digitalview.com EUROPE Digital View Ltd. The Lake House Knebworth Park Herts, SG3 6PY UK Tel: +44-(0)20-7631-2150 Fax: +44-(0)20-7631-2156 Sales: uksales@digitalview.com USA Digital View Inc.
