ViewSonic VLCDS25973-4W Service Manual
  1. Manuals
  2. Brands
  3. ViewSonic Manuals
  4. Monitor
  5. VLCDS25973-4W
  6. Service manual
ViewSonic VLCDS25973-4W Service Manual

ViewSonic VLCDS25973-4W Service Manual

Vp912s/b 19” color tft lcd display
Hide thumbs Also See for VLCDS25973-4W:
Table of Contents

Advertisement

Quick Links

Download this manual See also: User Manual

Service Manual

ViewSonic VP912s/b1
Model No. VLCDS25973-4W/5W
19" Color TFT LCD Display
(VP912s/b_SM_902 Rev. 1b Mar. 2005)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the VLCDS25973-4W and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for ViewSonic VLCDS25973-4W

Summary of Contents for ViewSonic VLCDS25973-4W

  • Page 1: Service Manual

    Service Manual ViewSonic VP912s/b1 Model No. VLCDS25973-4W/5W 19” Color TFT LCD Display (VP912s/b_SM_902 Rev. 1b Mar. 2005) ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583...

  • Page 2: Revision History

    Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes.

  • Page 3: Table Of Contents

    4. Circuit Description 5. Adjustment Procedure 6. Troubleshooting Flow Chart 7. Recommended Spare Parts List 8. Exploded Diagram and Spare Parts List 9. Block Diagram 10. Schematic Diagrams 11. PCB Layout Diagrams Confidential - Do Not Copy ViewSonic Corporation VP912s/b...

  • Page 4: Precautions And Safety Notices

    CFL Reflector edge softly. Otherwise the TFT Module may be damaged. (10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate or tilt the Interface Connector of the TFT Module. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 5 (14) The LCD module is designed so that the CCFL in it is supplied by a Limited Current Circuit (IEC60950 or UL1950). Do not connect the CCFL to a Hazardous Voltage Circuit. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 6 "MURA." not touch the surface of the polarizer. If the monitor is removed by grasping the Take out the monitor by grasping the cushions. LCD panel, that may cause "MURA." Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 7 Place the monitor on a clean and soft that could scratch the surface of the panel foam pad. or cause "MURA." If the panel is placed facedown on the lap, that may cause "MURA." Confidential - Do Not Copy ViewSonic Corporation VP912s/b...

  • Page 8: Specification

    Internal Power Supply Primary : LSE0204A1250 source: Tiger power TOF 5001 Input Voltage Range 90 to 264 VAC Over Current Protection 7.0 A typical at 12.0 VDC Power Dissipation 50 Watts (typ.) Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 9 Under DOS mode (640 x 350, 720 x 400 & While running Change Mode, Auto Adjust or 640 x 400), it should recall factory setting Memory Recall, the image shall blank when execute “Auto Adjust” by “0-Touch™” Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 10 Storage Temperature -20°C to +60°C Operating Relative Humidity 20% to 90% RH Non-Condensing Storage Relative Humidity 5% to 90% RH Non-Condensing Operating Altitude 0 to +3,000 meters Storage Altitude 0 to +12,000 meters Confidential - Do Not Copy ViewSonic Corporation VP912s/b...

  • Page 11: Front Panel Function Control Description

    Also a shortcut to toggle analog and digital connection. Displays the Main Menu or exits the control screen and saves adjustments. Power light Green = ON Orange = Power Saving Power On/Off Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 12 • If necessary, make small adjustments using H POSITION and V POSITION until the screen image is completely visible. (The black border around the edge of the screen should barely touch the illuminated "active area" of the LCD display.) Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 13 6500K — Adds red to the screen image for warmer white and richer red. 5400K — Adds green to the screen image for a darker color. 5000K — Adds blue and green to the screen image for a darker color. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 14 (video signal input) Information coming from the graphics card in your computer, the LCD model number, the serial number, and the ViewSonic website URL. See your graphic card’s user guide for instructions on changing the resolution and refresh rate (vertical frequency).
  • Page 15 Resolution Notice If you enable the Resolution Notice shown above and your computer is set at a resolution other than 1280 x 1024, the following screen appears. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 16 Landscape to Portrait mode. returns the adjustments back to factory settings Memory Recall if the display is operating in a factory Preset Timing Mode listed in the Specifications of this manual. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 17 [1] button, you can find the information about this Without signal (Hold for 3 seconds. Release “Power” button first monitor. and then “Up” & ”Down” buttons.) Remark: All the shortcut functions are only available while OSD is off. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...

  • Page 18: Circuit Description

    The AP1501 is monolithic IC designed for M/B DC/DC converter, and owns the ability of driving a 3A load without any additional transistor component. The AP1501 operates at a switching frequency of 150KHz and thus allows smaller-sized filter components than what would be needed with lower frequency switch regulator. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 19 (OSD) controller, digital color controls and an on-chip microcontroller (OCM). With this level of integration, he gm5110/20 devices simplify and reduce the cost of LCD monitors while maintaining a high-degree of flexibility and quality. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 20 At a transmit clock frequency of 85MHz, 24 bits of RGB data and 4 bits of LCD timing and control data (HSYNC, VSYNC, CNTL1, CNTL2) are transmitted at a rate of 595 Mbps per LVDS data channel. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...

  • Page 21: Adjustment Procedure

    800 x 600 @ 75Hz, 46.9kHz 800 x 600 @ 75Hz, 46.9kHz 800 x 600 @ 72Hz, 48.1kHz 800 x 600 @ 72Hz, 48.1kHz 800 x 600 @ 85Hz, 53.7kHz 800 x 600 @ 85Hz, 53.7kHz Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 22 White Balance White & Black Pattern The screen must have the pure Figure 9 white and black pattern, no other color. Fine Line Morie Pattern (Figure1) Gray Scale Pattern (Figure2) Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 23 Horizontal & Vertical Thickness Pattern (Figure 3) R. Color Pattern (Figure 4) G. Color Pattern (Figure5) B. Color Pattern (Figure 6) Full White Patter (Figure 7) Dark Screen Pattern (Figure 8) Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 24 (a) Select and enter “Fine Tune” function on “Manual Image Adjust” to adjust the image to eliminate visual wavy noise. (b) Then, select and enter “Sharpness” function to adjust the clarity and focus of the screen image. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 25 - The total numbers and distance of dead pixels should be compliant with the spec. 1.5.11 Mura Test Pattern: White, RGB, Black, & Grey Test Tool: 8% ND Filter - Use 8% ND Filter to check if any Mura on the screen. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 26 After final QC step, we have to erase all saved changes again and restore the factory defaults. You should do "All Mode Reset" again. 1.5.14 Power Off Monitor Turn off the monitor by pressing “Power” button, and turn off the power switch on the back of the monitor. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 27 - Printer Cable (P/N: 42.59906.001) *1 - Firmware Upgrade Program - One additional monitor for checking the program execution Printer Port VP912 Fixture Power Adapter for Fixture Printer Cable VGA Cable (P/N: 47.58201.001) (P/N: 42.59906.001) (P/N: 42.59901.003) Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 28 Connect Power Cord to VP912 Monitor, and turn on the Power Switch. Connect PC to the additional monitor. JP1: to Power Adapter P1: to VGA Cable P2: to Printer Cable Switch on Power Switch Connect to Power Cord Connect to VGA Cable Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 29 Install GProbe Program by selecting and clicking Gprobe icon. Press “Yes” or “Next” buttons until the installation is complete. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 30 Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 31 Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 32 Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 33 2.3 Firmware Upgrade Procedure Save these three files <bdisp.txt>, <p204_205.bin> and <vp912_AU_V2_001_04611.bin> in the computer. Open <bdisp.txt> file. Key in the path where you save the driver <p204_205.bin> and firmware <vp912_AU_V2_001_040611.bin>. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 34 Execute Gprobe program. Click Connection Setup icon. Select Protocol: DDC 2Bi3, Port: Printer1 (0x378), Speed: 70000. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 35 Message”, please check your Hardware set up procedure is correct or not. Key in “batch c:\VP912\bdisp.txt” after “Probe :>”, and then press “Enter” key to begin programming automatically. The path is where you save <bdisp.txt> file Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 36 Turn off the power switch of VP912, and turn it on again. Then enter “Burn In Mode”, and Serial Number will appear. Check if the version of BIOS is correct. Power Switch Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 37 “Error executing batch file at line 16” (see the following picture). Then you have to copy line 16 “FLASHWRITE C:\VP912b\VP912_AU_V2_001_040611.bin” in the “bdisp.txt” file to “Gprobe:>” in the Gprobe program, and then press “Enter” (see the picture next page). Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 38 Test passed. Test passed. Test passed. Erasing FLASH... Done. Writing FLASH... Writing FLASH... FAILED. Error executing batch file at line 16. Execution time: 9.61s GProbe:> Line 16 Line 16 Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 39 3.1 Equipment Needed - VP912 Series Monitor - Fixture (V3) for DDC Key in (JP3 must be closed) - RS232 Cable (P/N: 42.55907.001) *1 - VGA Cable (P/N: 42.59901.008) *2 - DVI-DVI Cable *1 Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 40 - One additional monitor for checking the program execution JP3 must be closed COM1: RS232 Cable V3 Fixture VP912 RS-232 Cable DVI-DVI Cable Power Adapter for Fixture (P/N: 42.55907.001) (P/N: 47.56001.402) Barcode Reader VGA Cable (P/N: 42.59901.008) Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 41 P3: to DVI-DVI Cable P2:&P4: to VGA Cable JP3 must be closed P1: to RS232 Cable JP1: to Power Adapter Turn on Power Switch VGA Port DVI Port Connect to Power Cord Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 42 The Method to check if Factory Mode is enabled: Press “1” and “Up” buttons simultaneously, if the message of “DMT XXX” appears, that means Factory Mode is enabled. Select and execute DDC Key In program. Type “W” to enter the writing mode. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 43 Notice: The English of the serial number should be capital letters. The successful picture is as follows. “The checksum values will appear after DDC is upgraded successfully in both VGA and DFP (DVI) modes.” Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 44 DDC CheckSum is correct or not. ¡ N Enter “Burn In Mode.” Turn off the power switch of the rear cover of VP912, and turn it on again. Check if the serial number is correct. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...

  • Page 45: Troubleshooting Flow Chart

    Is display performance ok? Troubleshooting Ye s Is function adjustment OK ? C. Function Troubleshooting Ye s Note: Before troubleshooting, first execute "All Mode Reset" to restore the monitor's settings to the factory defaults. Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 46 Replug or Change Is screen white? Main Board LCD Panel FPC Cable Ye s Ye s Ye s Change Change Ye s Abnormal Color ? Main Board LCD Panel Ye s Ye s Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 47 After this action if the ghost image disappears, go to "Yes"; otherwise go to "No." 2. Check the compatibility of the computer. If it is a compatibility problem, feedback the information to ViewSonic and go to "Yes"; otherwise go to "No." Confidential - Do Not Copy...
  • Page 48 2.3 C. Control Function Troubleshooting Start Change Change Main Board Control Board Ye s Ye s Confidential - Do Not Copy ViewSonic Corporation VP912s/b...

  • Page 49: Recommended Spare Parts List

    W.A. 4P UL1007 #24 250mm VP191(Power) M-WR-0828-0717 42.61203.001 Power Wire Documentation: Hi-Pot Test Label F 10mm VP191/191b M-LB-0830-0726 35.61205.001 HI-Pot Label Bar Code 40*14 ViewSonic M-LB-0813-0736 35.58304.001 Label Label Bar Code 50*25mm VP191 M-LB-0813-0781 35.61203.001 Label Label Carton 76*76mm M-LB-0813-0706 35.58203.001 Label...
  • Page 50 Ref. P/N Location Universal number# Q'ty Accessories: Power Cord 1.8M+0.1M Color CS-VS08 China A-PC-0106-0187 42.50126.001 POWER CORD Warrnaty Card S. Chinese Second Version ViewSonic M-MS-0808-8773 36.58307.002 WARRANTY Documentation: Warranty Sticker S. Chinese M-LB-0813-0737 36.58308.001 WARRANTY Shipping Warranty Sticker S. Chinese ViewSonic M-LB-0813-0739 36.58309.001 WARRANTY...
  • Page 51 Ref. P/N Location Universal number# Q'ty Accessories: Power Cord 1.8M+0.1M Color CS-VS08 China A-PC-0106-0187 42.50126.001 POWER CORD Warrnaty Card S. Chinese Second Version ViewSonic M-MS-0808-8773 36.58307.002 WARRANTY Documentation: Warranty Sticker S. Chinese M-LB-0813-0737 36.58308.001 WARRANTY Shipping Warranty Sticker S. Chinese ViewSonic M-LB-0813-0739 36.58309.001 WARRANTY...
  • Page 52 ASSY DISPLAY AUO M190EN04 V4 W/GM5321 CS-VS08 VP912b M-LB-0813-1016 35.00010.002 LABEL CAUTION HIGH VOLTAGE 25.4*19mm M-LB-0813-0736 35.58304.001 LABEL BARCODE 40*14 ViewSonic M-MS-0808-7800 35.61202.001 BIRD LOGO AL E015-004 "ViewSonic" M-00000685 35.61204.002 COSMETIC STRIP ADHESIVE 180*10*0.3(t)mm P M-LB-0830-0726 35.61205.001 HI-POT TEST LABLE F 10mm VP191/191b #N/A 39.61205.003...
  • Page 53 Item ViewSonic P/N Ref. P/N Description Location Q'ty R100,R162,R163,R1 76,R177,R181,R182, R271,R278,R28,R28 #N/A 01.22036.501 RES RP 22 5% 1/16W CHIP #0603 4,R29,R306,R307,R3 3,R34,R39,R40,R41, R42, #N/A 01.22136.501 RES RP 220 5% 1/16W CHIP #0603;"TA-I TECHNOLOGY" R302,R304. R178,R179,R269,R2 70,R276,R277,R282, #N/A 01.22236.501 RES RP 2.2K 5% 1/16W CHIP #0603...
  • Page 54 FW BIOS SOURCE CODE VP912 FOR GM5321 #N/A 35.00017.001 LABEL BIOS 13*11mm BLANK #N/A 35.00018.001 LABEL BARCODE 13*26.5mm BLANK #N/A 35.59907.001 LABEL SPEC ASIC 13*11mm BLANK For VIEWSONIC #N/A 75.55104.002 ASSY BALL SWITCH TFT5010"PC940" JP4. M-MS-0808-6287 85.005AG.075 SCREW HEX I/O #4-40*H5*L7.5 Ni NYLOK VGA*4, M-SCW-0824-6827 85.1C124.060...
  • Page 55 PACKING STRAP 12MM*2000M*0.6MM 0.00072 #N/A 51.00070.001 PE STRETCH FILM 500MM*1500M*0.02MM 0.0013 #N/A 51.00080.001 3 INCH TRANSPARENT ADHESIVE TAPE (600M) 0.0021 #N/A 51.59912.001 ViewSonic security tape 50t*100000mm 0.01 #N/A 55.55103.001 CORNER BOARD 40*40*5*1050mm 0.0625 #N/A 55.57202.001 CORNER BOARD 40*40*5*960mm 0.0625 #N/A 55.61205.001 CORNER BOARD 40*40*5*2040mm VP191 0.125...
  • Page 56 ASSY DISPLAY AUO M190EN04 V4 W/GM5321 VP9 M-LB-0813-1016 35.00010.002 LABEL CAUTION HIGH VOLTAGE 25.4*19mm M-LB-0813-0736 35.58304.001 LABEL BARCODE 40*14 ViewSonic M-MS-0808-7800 35.61202.001 BIRD LOGO AL E015-004 "ViewSonic" M-00000174 35.61204.003 COSMETIC STRIP ADHESIVE 180*10*0.3(t)mm P M-LB-0830-0726 35.61205.001 HI-POT TEST LABLE F 10mm VP191/191b #N/A 39.61205.004...
  • Page 57 Item ViewSonic P/N Ref. P/N Description Location Q'ty R178,R179,R269,R270,R276,R 277,R282,R283,R31,R32,R37,R #N/A 01.22236.501 RES RP 2.2K 5% 1/16W CHIP #0603 #N/A 01.22236.502 RES RP 2.2K 5% 1/16W X4 V8V 8P SMD RP2,RP3. #N/A 01.24116.501 RES RP 249 1% 1/16W CHIP #0603 R64.
  • Page 58 FW BIOS SOURCE CODE VP912 FOR GM5321 #N/A 35.00017.001 LABEL BIOS 13*11mm BLANK #N/A 35.00018.001 LABEL BARCODE 13*26.5mm BLANK #N/A 35.59907.001 LABEL SPEC ASIC 13*11mm BLANK For VIEWSONIC #N/A 75.55104.002 ASSY BALL SWITCH TFT5010"PC940" JP4. M-MS-0808-6287 85.005AG.075 SCREW HEX I/O #4-40*H5*L7.5 Ni NYLOK B.L-DVI*2.B.L-VGA*4, M-SCW-0824-6827 85.1C124.060...

  • Page 59: Exploded Diagram And Spare Parts List

    8. Exploded Diagram And Spare Parts List Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 60 85.005AG.075 SCREW HEX I/O #4-40*H5*L7.5 Ni NYLOK M-SCW-0824-0868 85.4A623.080 SCREW FLAT MECH M3*8 BLACK NYLOK M-SCW-0824-6827 85.1C124.060 SCREW PAN MECH W/T M4*6 Ni M-MS-0808-7800 35.61202.001 BIRD LOGO AL E015-004 "ViewSonic" M-LB-0813-0781 35.61203.001 LABEL BAR CODE 50*25mm VP191 M-LB-0813-0736 35.58304.001 LABEL BARCODE 40*14 ViewSonic M-LB-0813-0783 35.61201.002 LABEL SPEC 120*50mm VP191b...
  • Page 61 PACKING FOR SHIPPING PACKING PART LIST (VP912s-1) ViewSonic Model Number: VLCDS25973 Rev: 1b Item ViewSonic P/N Ref. P/N Description Q'ty M-LB-0813-0706 35.58203.001 LABEL CARTON 76*76mm A-CD-VP912B 36.61202.005 USER GUIDE+CD VP912b (AU EN04V1) A-PC-0106-0272 42.50115.001 CABLE POWER CORD 1830mm SP30+IS14 M-MS-0808-9911 51.61220.001...
  • Page 62 1.4 Put the monitor in the PE bag and seal the bag with tape. (Figure 4) Switch 25mm Figure 1 Figure 2 Position of tape PE BAG Protection Film Figure 3 Figure 4 Protection film Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 63 1.6 Place the monitor into the carton and then put all the accessories (1.VGA cable. 2.DVI-D cable. 3.user guide +CD. 4. power cord) into the carton. At last, close the carton and seal it with tape. (Figure 6) Figure 5 Figure 6 Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 64 B. Disassembly Procedure The Front View The Rear View 1. Disassembly of Stand unit from Monitor Put the monitor facedown. Take off Oval Cap and pry Hinge Cap off. Oval Cap Hinge Cap Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 65 1.3 Unscrew five screws of Base Plate to remove Base Plate from Hinge. Base Plate Hinge 1.4 Unscrew three screws that secure Base Plate to separate Base Plate from Base Cover. Base Cover Base Plate Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 66 Unscrew two screws that secure Rear Arm to separate Rear Arm from Hinge. Rear Arm Hinge 1.6 Turn Hinge and unscrew two screws that secure Front Arm to detach Front Arm from Hinge. Front Arm Hinge Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 67 C. Disassembly of Rear Cover Unscrew four screws of Rear Cover, and then detach LCD Panel module from Rear Cover. LCD Panel Module Rear Cover LCD Panel Module Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 68 EMI Tape Shielding Plate Note: EMI tape cannot be reused; please apply new EMI tape in the original position. Unscrew two screws and uplug five wires to remove Inverter Board. Inverter Board Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 69 Unscrew six hex screws and four screws that secure Main Board, unplug three wires and disconnect the Control Board wire to remove Main Board. Control Board wire Wire Main Board Screw Hex Screw Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 70 Unscrew four screws that secure Power Board and unplug one wire to remove Power Board. Power Board with Mylar Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 71 1. Disconnect two wires that are connected to Switch Wire and press four tenons that secure Switch wire and Inlet Wire and use flat screw driver to pull and press out Inlet and Switch Wires. Switch Wire Tenon Inlet Wire Switch Wire Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 72 Tear off Control Board wire and press four tenons to remove Front Cover from LCD Panel. Tenon Control Board wire Front Cover Unscrew four screws beside LCD Bracket to detach LCD Panel from LCD Bracket. Screw LCD Bracket LCD Panel Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 73 3. Tear off two pieces of tape to remove one cable. Tape Cable Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 74 24LC16B D_SUB HS/VS INPUT DDC_IIC EEPROM XTAL 14.318MHz +12V +12VIN +12V AC (110-240V) ADAPTER DPMS Title +3.3VD (50-60Hz) BLOCK DIAGRAM +3.3VA Size Document Number VP912 +2.5V Date: Thursday, June 24, 2004 Sheet Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 75 0.1uF 2.5V_AVDD BEAD /0805 100K 750R 0.1uF 0.1uF 0805 0805 1000uF/10V 0.1uF 0.1uF Close to GM5120 0.1uF PNL_EN 2N3904 2N3904 Title POWER Size Document Number VP912 Date: Thursday, June 24, 2004 Sheet Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 76 BLUE- 3 GIN2 BIN2 DSUB2_5V DSUB2 AGND AGND SDA_IN2 SDA_IN2 HS_DSUB2 HS_DSUB2 VS_DSUB2 VS_DSUB2 SCL_IN2 SCL_IN2 R136 Title 2-Input Connector R137 0 Size Document Number VP912 Date: Thursday, June 24, 2004 Sheet Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 77 C129 C131 C132 +5V 1 UART_D0 5.6K 0.1UF 0.1UF 0.1uF RXD 2 UART_D1 TXD 3 GND 4 C133 C134 10uF/16V Title GM5120 Size Document Number VP912 Date: Thursday, June 24, 2004 Sheet Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 78 RP13 DGO3 DRE3 DBE3 DGO2 DRE2 DBE2 DGO1 DRE1 DBE1 DGO0 DRE0 DBE0 100X4 100X4 100X4 CP11 CP12 CP13 Title OUTPUT INTERFACE Size Document Number VP912 Date: Thursday, June 24, 2004 Sheet Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 79 TxIN23 /PWRDWN SELLVDS +3.3VL DCLK TxCLKIN TxIN24 TxIN26 +3.3VL TxIN25 DS90CF383 +3.3VL LVDSON +3.3VL 4.7k C157 C158 100pF 100pF Title LVDS CONNECTOR Size Document Number VP912 Date: Thursday, June 24, 2004 Sheet Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 80 C168 C169 R125 R126 0.1uF 0.1uF 0.1uF 510R 510R CP14 (KEYPAD) Title KEYPAD & DDC Size Document Number JP11 VP912 KMENU KSELECT Date: Thursday, June 24, 2004 Sheet KDOWN KLEDG KLEDR KPWR Confidential - Do Not Copy ViewSonic Corporation VP912s/b...
  • Page 81 11. PCB Layout Diagrams Confidential - Do Not Copy ViewSonic Corporation VP912s/b...

  • Page 82: Block Diagram

    Add.: Fax: Tel: E-mail: After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile 1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes (marc.maupin@viewsonic.com) Confidential - Do Not Copy...

This manual is also suitable for:

Vlcds25973-4w5w

Table of Contents