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page 1 of 31 dual dvi interface controller for tft panel model: DD-1920-DUAL-DVI part number : 41739000x-3 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 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 is essential that these instructions are read and understood before connecting or powering up this controller.
page 2 of 30 introduction designed for lcd monitor and other flat panel display applications, the DD-1920-DUAL-DVI controller provides easy to use dvi in terface controller for: ? tft (active matrix) lcds with lvds interface of 1920x1200, 1920x1080, 1920x480, 1680x1050, 1600x1200, 1600x900, 1440x900, 1400x1050, 1366x768, 1280x1024, 1280x800, 1280x768, 1024x768, 1024x600, 960x960, 800x600, 800x480 resolution ? support dual dvi input up to 1920x1080 60hz resolution ordering information : controller part number ordering part number DD-1920-DUAL-DVI p/n 41739000x-3 p/n 4173900xx-3 how to proceed ? ensure you have all parts & that they are correct, refer to: ? connection diagram (separat e 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 devel oper, 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 3 of 31 system design a typical lcd based display system utilizing this controller is likely to comprise the following: summary: 1. lcd panel 2. lcd controller card, DD-1920-DUAL-DVI 3. lvds cable (for c onnection 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.
page 4 of 30 assembly notes this controller is designed for monitor and custom display projects using 1920x1200, 1920x1080, 1920x480, 1680x1050, 1600x1200, 1600x900, 1440x900, 1400x1050, 1366x768, 1280x1024, 1280x800, 1280 x768, 1024x768, 1024x600, 960x960, 800x600, 800x480 resolution tft panels with a vga, svga, xga, sxga, uxga, wuxga signal input. the following provides some guideli nes for installation and preparation of a f inished display solution. preparation : before proceeding it is important to familiarize yourself with the parts making up the system and the various connectors, mou nting holes and general layout of the controller. as much as possible c onnectors have been labeled. gui des to connectors and mounting hol es 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 t o the variation between manufacturers of signal timing and other panel characteristics factory setup and confirmation should be obtai ned before connecting to a panel. (note: check panel power jumper settings before connection) 2. controller card: handle the controller card with care as static charge may damage electronic components. 3. lvds signal cable : in order to provide a clean signal it is recommended that lvds signal cables are no longer th an 46cm (18 inches). if loose wire cabling is utilized these can be made into a harness with cabl e ties. care should be taken w hen placing the cables to avo id signal interference. additionally it may be necessary in some systems to add ferrite cores to the c ables to minimize signal noise. 4. 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 b acklight tubes and the power requirements for different panel models backlight s may vary it is important to match the inverter in order to obtain optimum performance. see page 15 for the application notes ?i nverter connection section for more informations. 5. inverter cables : different inverter models require different cables and different pin assignment. make sure correct cable pin out to match th e 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 inve rter), osd (5 momentary buttons) analog vr type or (8 moment ary buttons) digital type. 7. osd switch mount controls cable : the cables to the function swit ches 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. 8. controller status led (optional) : this led indicates the controller st atus. 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 le d is an optional part only, can be unconnected. controller led status (led1) : state led color no signal & backlight off red no signal & backlight on orange with signal & backlight on green 9. ir sensor : it is an optional part only, can be unconnec ted if not using ir remote control. see appendix v for button definition. 10. rs-232 control interface : firmware upgrade and serial control via this interface port. 11. dvi input port 1 and 2 : plug the dvi cable to the connector dvi port 1 and 2 on the controller board. 12. power input : 12vdc is required, this should be a regul ated supply. although the controller provides power regulation for the lcd power th is does not relate to the power supplied to the backlight invert er. 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. ? power safety : note that although only 12vdc is suppli ed as ?power-in? a backlight inverter fo r panel backlighting produc es significantly hi gher 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 certai n regulatory emissions tests. also the c hoice of external controller to pc signa l 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.
page 5 of 31 ? controller mounting : it is recommended that a clearance of at least 10mm is provided above and 5mm below the controller when mounted. additionally considerat ion should be given to: ? electrical insulation. ? grounding. ? emi shielding. ? cable management. note: it is important to k eep panel signal cables apart from the inve rter & backlight cables to prevent sign al 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 6 of 30 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 conn ection 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. led 1 : plug in a 3-way with dual colour led to connector led1 on the controller board for indicating the controller status. 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 inpu t (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 connector pp2. you c an consider to use digitalv iew 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. controller led status (led1 & led1a) : state led color no signal & backlight off red no signal & backlight on orange with signal & backlight on green 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 & connec tors refer carefully to both the panel & in verter 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 sum marized in the following sections. the settings chos en will be saved for each mode independently.
page 7 of 31 lcd display system settings note: by way of explanation the following refers to a set of sa mple buttons that may be obtained as an option. in addition to p ower 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 analog vr type digital type on/off ? turns controller board power on vr toggle switch on/off button brightness ? controls backlight brightne ss 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 setting / moves the selector to the previous function (under osd menu on state) - - reset to factory defaults press and hold sel dn button, then power on the controller press and hold sel dn button, then power on the controller switch to next input source (under osd menu off state) + + on/off/brightness sel up sel dn + - menu analog vr type digital type
page 8 of 30 osd functions image brightness increase/decrease brightness level. press ? or + (- + ) total : 100 steps contrast increase/decrease contrast level. press ? or + (- + ) total : 100 steps sharpness increase/decrease sharpness level. press ? or + (- + ) total : 8 steps color color temp 4 (adjust the warmness of the image displayed. the higher temperature the coolest image looks like. the lower temperature the warmest image looks like.) 4200k 5000k 6500k 7500k 9300k user 4 r press ? or + (- + ) total : 100 steps g press ? or + (- + ) total : 100 steps b press ? or + (- + ) total : 100 steps reset gamma (0.4/0.6/1.0/1.6/2.2) display backlight 4 invert b/l invert : invert for the backlight 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] system 4 input : select the input video signal dvi 1 dvi 2 autoscan : enable the au to source seek function timer : osd timeout in seconds press ? or + (- + ) from on, 5 to 60 (total : 13 steps, on standard for alwa y s on ) 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 for smart isp firmware upgrade remark : items marked 4 have sub menus. exit the osd menu to save the setting chosen
page 9 of 31 connectors, pinouts & jumpers the various connectors are: summary: connectors ref purpose description cn8 serial control molex 53261-0671, 6 ways 1.25mm pitch (mating type : molex 51021-0600) (matching connection cable p/n 426171800-3 ) cna1 auxiliary power output jst 4-way, s4b-xh-a (mating type : xhp-4) (matching cable p/n 426040200-3 ) cnb1 backlight inverter jst 5-way, s5b-xh-a (mating type : xhp-5) (matching cable p/n 426058300-3 ) cnc1 osd controls hirose df13a-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-zr-sm4a (mating type : zhr-3) (matching connection cable p/n 426031400-3 ) j3 lvds panel signal jae fi-re51s-hf (mating type : jae fi-re51hl) pp2 power input molex 43650-0200 compatible (mating type : molex 43645-0200 compatible) (matching power cable : p/n 426013800-3 , 160mm)
page 10 of 30 summary: jumpers setting ref purpose note ja3 panel power voltage select see panel voltage setting table 1 caution: incorrect setting will cause panel damage jb1 backlight brightness voltage range 1-2 closed = 3.3v max 2-3 closed = 5v max jb2 backlight inverter on/off control ? signal le vel 1-2 = on/off control signal ?high? = +12v 2-3 = on/off control signal ?high? = +5v open = on/off control signal ?high? = open collector caution : incorrect setting can damage inverter. jb3 backlight inverter on/off control ? polar ity 1-2 = control signal ?high? = ccft on 2-3 = control signal ?low? = ccft on 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 programming use (always 1-2 closed) jp6 input power control short = external switch control open = switch mount control sw1 panel selection see table below sw2 panel selection see table below table 1 : panel voltage setting table : input voltage via pp2 panel voltage ja3 jumper on board 3.3v 3-4 closed 5v 1-2 closed 12vdc 12v open caution: incorrect setting can damage panel & controller ! ja3
page 11 of 31 dip switch selection ? sw2 pos #1 pos #2 pos #3 pos.#4 description panel resolution for wuxga panel off off off off samsung ltm220cs01 1920x1200 au optronics b170uw02 v0 1920x1200 on off off off au optronics m215hw01 1920x1080 samsung ltm230ht01 1920x1080 off on off off samsung lti400ha01 1920x1080 on on off off lg lp156wf4 1920x1080 off off on off au optronics g173hw01 v0 1920x1080 for uxga panel on off off off nec nl160120bc27-14 1600x1200 for wxga panel on off off off samsung lta260w2-l01 1366x768 on on off off samsung lta460ws-l03 1366x768 off off on off sharp lq315t3lz24 / au optronics m156xw01 v0 1366x768 on off on off lg lc420w02-a4 1366x768 off on on off nec nl12880bc20-02d 1280x800 off on off off nec nl12876bc26-21 1280x768 on on on off au optronics m220ew01 1680x1050 for sxga panels on off off on nec nl128102bc29-01b 1280x1024 on on on off fujitsu flc48sxc8v 1280x1024 off on off on sharp lq181e1lw31 1280x1024 on on off on samsung ltm170et01 1280x1024 off off on on au optronics m190eg01 1280x1024 for xga panel off off on on auo m150xn07 v2 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 800x600 on off on off toshiba ltm12c289 800x600 off on on off sharp lq084s3dg01 800x600 on on off off sharp lq121s1lg41 800x600 nec nl8060bc21-02 800x600 on on on off sharp lq104s1dg21 800x600 off off off on primeview pd104sl5 800x600 on off off on nec nl8060bh18-02 800x600 for wvga panel on off on off nec nl8048bc19-02 800x480 on off off on sharp lq070y3lg4a 800x480 others on off off on samsung lti430la01 1920x480 off off off on au optronics m220ew01 1680x1050 on on on off au optronics m200rw01 v1 1600x900 on off off off sharp lq150f1lh22 1400x1050 on on off off samsung ltm190m2-l31 1440x900 on off on off lg lm171wx3-tla1 1440x900 off on on off lg lm171wx3 1440x900 on on off on shanghai avic tm070jdhp01 1280x800 off off on off cpt claa102na0acw 1024x600 off on off on samsung lti216xm01 960x960 for additional and recent added panel s, please contact us to support.
page 12 of 30 pos #5 pos #6 pos #7 description off off off wuxga on off off uxga off on off sxga on on off wxga off off on xga on off on svga off on on vga / wvga on on on others sw1 pos 8 = reserved. dip switch selection ? sw1 pos. # function description 1 panel pixel format 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 pictur e. see as appendix iii for details 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 off - changed the ir key from "display" key to "osd next" key for menu function - extend longer delay time approx. (4 secs) to detect signal for "no signal" state - only dvi 1 input and disabled all other "source" sele ctions in osd, ir hotkeys & rs-232 for rm-dn5 mode
page 13 of 31 cn8 ? rs-232 serial control: molex 53261-0671, 6 ways 1.25mm pitch (matching type : molex 51021-0600) pin symbol description 1 sdata reserved 2 sclk reserved 3 vcc +5v 4 txd rs-232 tx data 5 gnd ground 6 rxd rs-232 rx data cna1 - auxiliary power output: jst s4b-xh-a (matching type : xhp-4) pin symbol description 1 aux power +12v dc, 500ma max 2 gnd ground 3 gnd ground 4 aux 5v +5v dc, 500ma max cnb1 ? backlight inverter connector: jst s5b-xh-a (matching type : 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 brightness vr pin a 4 bvr_wip backlight brightness r pin wip 5 bvr_b backlight brightness vr pin b (470 ohm resistor to +5v vcc) 6 gnd ground 7 menu osd menu 8 -/left osd -/left 9 +/right osd +/right 10 sel_dn osd select down 11 sel_up osd select up 12 nc no connection
page 14 of 30 dvi 1 & dvi 2 ? dvi-d in pin symbol description 1 /rx2 tmds data 2- 2 rx2 tmds data 2+ 3 gnd digital ground 4 nc no connection 5 nc no connection 6 ddc_clk ddc clock 7 ddc_dat ddc data 8 nc no connection 9 /rx1 tmds data 1- 10 rx1 tmds data 1+ 11 gnd digital ground 12 nc no connection 13 nc no connection 14 ddc_5v +5v power supply 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 53261-0371, 3 way 1.25mm pitch (matching type : molex 51021-0300) pin symbol description 1 gnd ground 2 stdby_vcc stand by voltage 3 ir data ir data
page 15 of 31 j3 ? lvds output connector: jae fi-re51s-hf (matching type : jae fi-re51hl) pin symbol description 1 vdd (+12v) panel power supply (+12v) (selected by ja3) 2 vdd (+12v) panel power supply (+12v) (selected by ja3) 3 vdd (+12v) panel power supply (+12v) (selected by ja3) 4 vdd (+12v) panel power supply (+12v) (selected by ja3) 5 vdd (+12v) panel power supply (+12v) (selected by ja3) 6 vdd (3,3v/5v) panel power supply (3,3v/5v) (selected by ja3) 7 vdd (3,3v/5v) panel power supply (3,3v/5v) (selected by ja3) 8 vdd (3,3v/5v) panel power supply (3,3v/5v) (selected by ja3) 9 vdd (3,3v/5v) panel power supply (3,3v/5v) (selected by ja3) 10 vdd (3,3v/5v) panel power supply (3,3v/5v) (selected by ja3) 11 gnd ground 12 gnd ground 13 gnd ground 14 gnd ground 15 gnd ground 16 nc no connection 17 nc no connection 18 nc no connection 19 nc no connection 20 gnd ground 21 gnd ground 22 nc no connection 23 nc no connection 24 txa3+ positive differential lvds data bit a3 25 txa3- negative differential lvds data bit a3 26 gnd ground 27 txac+ positive lvds clock 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 connection 39 txb3+ positive differential lvds data bit b3 40 txb3- negative differential lvds data bit b3 41 gnd ground 42 txbc+ positive lvds clock for b channel 43 txbc- negative lvds clock for b channel 44 gnd ground 45 txb2+ positive differential lvds data bit b2 46 txb2- negative differential lvds data bit b2 47 txb1+ positive differential lvds data bit b1 48 txb1- negative differential lvds data bit b1 49 txb0+ positive differential lvds data bit b0 50 txb0- negative differential lvds data bit b0 51 gnd ground led1 ? dual color led connector for controller status, jst 3-way, s3 b-zr-sm4a (mating type : jst zhr-3) pin description 1 green led pin (anode) 2 led pin common (cathode) 3 red led pin (anode) pp2 - power supply (mating type : molex 43645-0200 compatible) pin description 1 +12vdc 5a max 2 ground
page 16 of 30 controller dimensions the maximum thickness of the controller is 13.55mm (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 th e mounting plate surface. ? 10mm above the components ? 3~5mm around the edges any of the holes shown above can be used for mount ing 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 as t he inverter.
page 17 of 31 application notes using the controller wi thout 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 setti ngs for colour and image position as required t hen switch everything off. ? use a jumper to close jp6 jumper, this will fix the board on. ? refer to inverter specifications for det ails as to fixing brightness to a desired level, this may require a resistor, an open circuit or closed circuit depending on inverter. inverter connection there are potentially 3 issues to c onsider with inverter connection: ? power ? enable ? brightness please read the following sections for a guide to these issues. inverter power : as per the table for cnb1 pin 1 is ground and pin 2 provides 12vdc. th is should be matched with the inverter specification: s ee table. cnb1 pin description 1 ground 2 +12vdc remark: for higher power inverter, more current for 12v can be taken from cna1 pin 1. maximum current drawn on cna1 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. i f the inverter does not have an enable pin or the enable pin is not used then dpms will not be operati onal. pin 3 should be matched to the inv erters specification for the ?enable? or ?disable? pin. cnb1 pin description 3 enable further, jumpers jb2 & jb3 should be set to match the invert ers specification for the enable pin power and high or low setting: see table. ref purpose note jb2 inverter enable voltage 1-2 h = 12v, 2-3 h = 5v (vcc), open h = open collector jb3 inverter control 1-2 h = on, 2-3 l = on brightness : there are various methods for brightness control and it is import ant to consider the specificat ions for the inverter to be us ed. generally the situation is: ? brightness can controlled by using a re sistor or vr (variable resistor). ? brightness controlled by adding a circuit such as pwm (pulse width modulation). ? no adjustment of brightness is possible. cnb1 pins 4 & 5 are available for c onnecting to an inverter or circuit where vr control is supported. cnb1 pin description 4 vr wip 5 vr a this can then be matched with function controls (osd switch mount) pins 3 & 4: see cable design below .
page 18 of 30 design guideline for making vr circuitry : cnb1 ? backlight inverter connector: jst b5b-xh-a (matching type : xhp-5) pin symbol description 1 gnd ground 2 vbkl +12vdc, backlight power supply (selected by ja3 & ja6) 3 blctrl on/off control (enable) ? see jb2 & jb3 4 bvr_wip brightness vr - wip 5 bvr_a brightness vr a cnc1 ? control switch, jst b12b-xh-a (matching type : xhp-12) pin symbol description 1 pswin power button a 2 sw_on power button b 3 bvr_a backlight brightness vr pin a 4 bvr_wip backlight brightness r pin wip 5 bvr_b backlight brightness vr pin b (470 ohm resistor to +5v vcc) 6 gnd ground 7 menu osd menu 8 -/left osd -/left 9 +/right osd +/right 10 sel_dn osd select down 11 sel_up osd select up 12 nc no connection the vr for brightness depends on the inverter. the main power load for on/off 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 tapped from ?bottom? of rpot. note : bvr_a voltage is left floating on the controller board. to use this circuit, you need to tie this point to a potential (usually gnd, available at cnc1 pin 6). 1.)choose rpot = 10k 2.) tie bvr_a to gnd 3.) circuit analysis gives bvr_wip as the following (see figure 1) bvr_wip = 5 x (rbc/10.47) where bvr_wip is in volts. and rbc is the resistance from the wiper arm to bottom of pot in kohms. to evaluate, plug in different values of rbc : rbc bvr_wip 0 0 v 2.5 k 1.2 v 5 k 2.4 v 7.5 k 3.6 v 10 k 4.8 v so this circuit could provide brightness adjust voltage ranging from 0v to 5v.
page 19 of 31 troubleshooting general a general guide to troubleshooting a flat panel display system it is worth considering the system as separate elements, such as : ? controller (jumpers, pc settings) ? panel (controller, cabling, connection, panel, pc settings) ? backlight (inverter, c abling, backlight tubes) ? cabling ? computer system (display settings, operating system) through step by step cross checking with instruction manuals and a pr ocess of elimination to isolate the problem it is usually possible to clearly identify the problem area. no image: ? if the panel backlight is not working it may still be possible to just see some image on the display. ? a lack of image is most likely to be caused by incorrect connec tion, lack of power, failure to provide a signal or incorrect g raphic card settings. image appearance: ? a faulty panel can have blank lines, failed sections, flickeri ng or flashing display ? incorrect graphics card refresh rate, resolution or interl aced mode will probably cause the image to be the wrong size, to scr oll, 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 th e panel power input incorrectly. ? sparkling on the displa y: faulty panel signal cable. backlight: items to check include: power input, controls, in verter and tubes generally in this order. if half the screen is dimmer than the other half: ? check cabling for the inverter. ? for a specific backlight tube check the ac pins orientation (caution : never reverse any dc power pins). also: ? if adjusting brightness control has no effect the chances are t hat the vr rating or method of adjusting brightness is not comp atible or correctly connected to the inverter. ? if system does not power down when there is a loss of signal continued failure: if unit after unit keeps failing consider and investigate whether you are short circui ting the equipment or doing something els e seriously wrong. generally after common sense issues have been resolved we recommend step by step substitu tion of known working parts to isolate the problem.
page 20 of 30 specifications panel compatibility 1920x1200, 1920x1080, 1920x480, 1680x1050, 1600x1200, 1600x900, 1440x900, 1400x1050, 1366x768, 1280x1024, 1280x800, 1280x768, 1024x768, 1024x600, 960x960, 800x600, 800x480 resolution tft lvds lcd?s support. no. of colours up to 3 x 8 bit providing 16.7 million colours. vertical refresh rate wuxga, uxga, wxga, sxga, xga, svga, vga resolution up to 60hz. dot clock (pixel clock) maximum 165 mhz graphics formats standard wuxga, uxga, sxga, xga, svga, vga standard input at source - dvi 1 / dvi 2 controls available - on/off - brightness (inverter) - osd menu - osd select - osd setting + - osd 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 (controlle r logic only, no panel and inverter are involved) controller dimensions 107.4mm x 73.6mm x 13.55mm storage temperature limits -40 o c to +70 o c operating temperature limits 0 o c to +60 o c notes please note the following: ? for specific panel setup a sample of an lcd may be required (t his will be returned) and a copy of the full technical specifica tions for the panel from the manufacturer. ? re-layout and custom development services are available.
page 21 of 31 appendix i ? mode support table dvi port : video 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 60hz - vesa std 1024 x 768p at 60hz - vesa std 1280 x 1024p at 60hz - vesa std 1600 x 1200p at 60hz - vesa std 1920 x 1080p at 60hz - vesa std 1920 x 1200p at 60hz - vesa std detailed timing #1....... 1360x768p at 60hz (15:9) detailed timing #2....... 1280x768p at 60hz (15:9) detailed timing #3....... 1920x1080p at 50hz (16:9) ce video identifiers (vics) - timing/formats supported 1920 x 1080p at 50hz - hdtv (16:9, 1:1) 1920 x 1080p at 60hz - hdtv (16:9, 1:1) 1920 x 1080i at 50hz - hdtv (16:9, 1:1) 1920 x 1080i at 60hz - hdtv (16:9, 1:1) 1280 x 720p at 50hz - hdtv (16:9, 1:1) 1280 x 720p at 60hz - hdtv (16:9, 1:1) 720 x 576p at 50hz - edtv (16:9, 64:45) 720 x 576p at 50hz - edtv (4:3, 16:15) 720 x 576i at 50hz - doublescan (16:9, 64:45) 720 x 576i at 50hz - doublescan (4:3, 16:15) 720 x 480p at 60hz - edtv (16:9, 32:27) 720 x 480p at 60hz - edtv (4:3, 8:9) 720 x 480i at 60hz - doublescan (16:9, 32:27) 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 60hz - vesa std 1024 x 768p at 60hz - vesa std 1280 x 1024p at 60hz - vesa std 1600 x 1200p at 60hz - vesa std 1920 x 1080p at 60hz - vesa std 1920 x 1200p at 60hz - vesa std detailed timing #1....... 800x480p at 59hz (15:9) detailed timing #2....... 1280x800p at 60hz (15:9) detailed timing #3....... 1366x768p at 60hz (16:9) detailed timing #4....... 1440x900p at 60hz (16:9) ce video identifiers (vics) - timing/formats supported 1920 x 1080p at 50hz - hdtv (16:9, 1:1) 1920 x 1080p at 60hz - hdtv (16:9, 1:1) 1920 x 1080i at 50hz - hdtv (16:9, 1:1) 1920 x 1080i at 60hz - hdtv (16:9, 1:1) 1280 x 720p at 50hz - hdtv (16:9, 1:1) 1280 x 720p at 60hz - hdtv (16:9, 1:1) 720 x 576p at 50hz - edtv (16:9, 64:45) 720 x 576p at 50hz - edtv (4:3, 16:15) 720 x 576i at 50hz - doublescan (16:9, 64:45) 720 x 576i at 50hz - doublescan (4:3, 16:15) 720 x 480p at 60hz - edtv (16:9, 32:27) 720 x 480p at 60hz - edtv (4:3, 8:9) 720 x 480i at 60hz - doublescan (16:9, 32:27) 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)
page 22 of 30 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 computer side connector interface : cn8 connector interface : serial port mating connector : molex 51021-0600 mating connector : db9 female pin# description pin# description 4 rs-232 tx data 2 rs-232 rx data 5 ground 3 rs-232 tx data 6 rs-232 rx data 5 ground software connection : the osd function can be controlled through sending the rs-232 protocol. the rs-232 program can be custom-made to fit for application or it can be used the program prov ided by digitalview on request. please contact your local sales for informations. 1. commands to implement switch mount control buttons function command description acknowledge (if enabled) menu 0xf7 menu button pressed button equivalent select-down button 0xfa select down button pressed button equivalent select-up button 0xfb select up button pressed button equivalent right/+ button 0xfc right/+bu tton pressed button equivalent left/- button 0xfd left/- button pressed button equivalent 2. parameter setting - immediat e, relative, reset and query function command description acknowledge (if enabled) brightness control 0x81, nn | ?+? | ?-? | ?r? | ?r? | ??? set brightness = value/increment/decrement reset query brightness. range: ?0??0?-?6??4? default: ?3??2? contrast control 0x82, ?a? | ?a?, nn | ?+? | ?-? | ?r? | ?r? | ??? set all contrast = value/increment/decrement reset query contrast. range: ?4??0?-?6??4? default: ?3??2? sharpness 0x8a, nn | ?+? | ?-? |?r? | ?r? | ??? set sharpness= value/increment/decrement reset query sharpness range: ?f??c?-?0??4? default: ?0??0? osd h position 0x90, nnn | ?+? | ?-? | ?r? | ?r? | ??? set osd_hpos = value/increment/decrement reset query osd horizontal position range: ?0??0??0?-?3??e??8? default: ?1??f??4? osd v position 0x91, nnn | ?+? | ?-? | ?r? | ?r? | ??? set osd_vpos = value/increment/decrement reset query osd vertical position range: ?0??0??0?-?3??e??8? default: ?1??f??4? select menu 0x93, select menu tim eout = osd menu timeout value. 5 4 6 3 1 5 4 6 3 1 7 8 9 mating face of rs-232 db9 male mating face of cn8
page 23 of 31 timeout nn | ?+? | ?-? | ?r? | ?r? | ??? value/increment/decrement reset query ?00? ? continuous. value ? round up to nearest available step. if value > max available step, set it to the max available step. ?0? ?0? ? always on. ?0? ?c? ? 12 seconds (default) ?0? ?6? ? 6 seconds ?0? ?3? ? 3 seconds input main select * function in valid mode only 0x98, nn | ?+? | ?-? | ?r? | ?r? | ??? select input main = pc or video or next available reset query main selected. ?0x46,0x31? dvi1 (default) ?0x46,0x32? dvi2 gamma value select 0x9d, n | ?r? | ?r? | ??? select gamma value = value reset query gamma value: ?0? ? 0.4, ?1? ? 0.6 ?2? ? 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?-?6??4? default: ?6??4? green level for selected colour temperature 0xb5, nn | ?+? | ?-? | ?r? | ?r? | ??? set the level of the green channel for the selected colour temp. = value/increment/decrement reset query green level for selected colour temperature. range: ?0??0?-?6??4? default: ?6??4? blue level for selected colour temperature 0xb6, nn | ?+? | ?-? | ?r? | ?r? | ??? set the level of the blue channel for the selected colour temp. = value/increment/decrement reset query blue level for selected colour temperature. range: ?0??0?-?6??4? default: ?6??4? backlight 0xe0, set backlight br ightness = backlight brightness.
page 24 of 30 brightness control nn | ?+? | ?-? | ?r? | ?r? | ??? value/increment/decrement reset query range: ?0??0?-?6??4? default: ?6??4? e.g ?1??0? ? 0xe0 0x31 0x30 * this control can only function when jb5 sets 3-4 closed * apply for inverter control voltage in range of 0~5v. each step interval is in 1 backlight on/off control 0xe1, ?0? | ?1? | ?r? | ?r? | ??? set backlight brightness = disable backlight enable backlight reset query backlight on/off. backlight pwm** 0xe5, ?0? | ?1? | ?r? | ?r? | ??? set backlight type d/a or pwm reset query ?1? ? pwm ?0? ? d/a backlight pwm frequency** 0xe6, nnn | ?+? | ?-? | ?r? | ?r? | ??? set backlight pwm frequency = value/ increment/ decrement reset 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? 260hz : ?1?, ?0?, ?4? 280hz : ?1?, ?1?, ?8? 300hz : ?1?, ?2?, ?c? 320hz : ?1?, ?4?, ?0? 340hz : ?1?, ?5?, ?4? 360hz : ?1?, ?6?, ?8? 380hz : ?1?, ?7?, ?c? 400hz : ?1?, ?9?, ?0? 420hz : ?1?, ?a?, ?4? 440hz : ?1?, ?b?, ?8? backlight invert** 0xe7, 0? | ?1? | ?r? | ?r? | ??? set backlight invert normal or invert reset query ?1? ? invert ?0? ? normal osd menu lock 0xf6, n | ?0? | ?1? | ?r? | ?r? | ??? osd menu lock off/ on reset query ?0? ? osd menu lock off ?1? ? osd menu lock on
page 25 of 31 3. other control function command description acknowledge (if enabled) select rs-232 acknowledge 0xc1, ?0? | ?1? disable/enable command acknowledge. ?0? ? acknowledge disabled. ?1? ? acknowledge enabled. command availability 0xc4, n check whether a command is available. ?0? ? not available. ?1? ? available. soft power on/off** 0xc8, ?0? | ?1? | ??? soft power on/off query ?0? ? soft power off. ?1? ?soft power on. query bios version 0xcb, ?0? read bios version ?nnnn? = bios ver. ?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 a scii 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 0x67 g 0x37 7 0x48 h 0x68 h 0x38 8 0x49 i 0x69 i 0x39 9 0x4a j 0x6a j 0x4b k 0x6b k 0x4c l 0x6c l 0x4d m 0x6d m 0x4e n 0x6e n 0x4f o 0x6f o 0x50 p 0x70 p 0x51 q 0x71 q 0x52 r 0x72 r 0x53 s 0x73 s 0x54 t 0x74 t 0x55 u 0x75 u 0x56 v 0x76 v 0x57 w 0x77 w 0x58 x 0x78 x 0x59 y 0x79 y 0x5a z 0x7a z
page 26 of 30 appendix iii ? mapping definition ? definition of mapping a :
page 27 of 31 ? definition of mapping b :
page 28 of 30 appendix iv ? dv remote control unit work for DD-1920-DUAL-DVI button function power button soft power on/off button. attention button use combined with digit keys to enable/disable the ir function. DD-1920-DUAL-DVI : ?attention? + ?1? sel up ( ) / sel dn ( ) press this button to select the 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 559000105-3 : digitalview remote control unit (with digitalview logo silk screen printing)
page 29 of 31 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 in cludes but is not limited to ca ses where electrical short cir cuit is caused. ? product that has been altered or repaired except by t he manufacturer (or with the manufacturer?s consent). ? product that has subjected to misuse, accidents, abuse, negligence or unusual stre ss whether physical or electrical. ? ordinary wear and tear. except for the above express warranties, the manufacturer discl aims all warranties on products furnished hereunder, including a ll implied warranties of merchantability and fitness for a particular application or purpos e. the stated express warranties are in lieu of all obliga tions or liabilities on the part of the manufacturer for damages, including but not limited to spec ial, indirect consequential damages arising out of or in conn ection with the use of or performance of the products. caution whilst care has been taken to provide as much detail as possibl e for use of this product it cannot be relied upon as an exhaust ive source of information. this product is for use by suitably qualified pers ons who understand the nature of the work they are doing and are able to take suitable precautions and design and produce a product that is safe and meets regulatory requirements. limitation of liability the manufacturer?s liability for damages to customer or others resulting from the use of any product supplied hereunder shall i n no event exceed the purchase price of said product. trademarks the following are trademarks of digital view ltd: ? digital view ? DD-1920-DUAL-DVI
page 30 of 30 contact details usa: digital view inc. 18440 technology drive building 130 morgan hill, ca 95037 usa 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 uk tel: +44-(0)20-7631-2150 fax: +44-(0)20-7631-2156 sales: uksales@digitalview.com asia: digital view ltd 16 th floor millennium city 3 370 kwun tong road 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 2nd issue: 23 august, 2013 (DD-1920-DUAL-DVI manual.doc) ? digital view ltd 2013

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