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ViewSonic VX724-1 VS10049 Service Manual

17” color tft lcd display
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Service Manual

ViewSonic VX724-1
Model No. VS10049
17" Color TFT LCD Display
(VX724-1_SM Rev. 1b Jun. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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Summary of Contents for ViewSonic VX724-1 VS10049

  • Page 1: Service Manual

    Service Manual ViewSonic VX724-1 Model No. VS10049 17” Color TFT LCD Display (VX724-1_SM Rev. 1b Jun. 2006) 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

    Specification Front Panel Function Control Description Circuit Description Adjustment Procedure Troubleshooting Flow Chart Recommended Spare Parts List Exploded Diagram and Exploded Parts List Block Diagram 10. Schematic Diagrams 11. PCB Layout Diagrams Confidential - Do Not Copy ViewSonic Corporation VX724-1...

  • 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 VX724-1...
  • 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 VX724-1...
  • Page 6 "MURA." Do not touch the surface of the polarizer . Take out the monitor by grasping the cushion. If the monitor is removed by grasping the LCD panel, that may cause "MURA." Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 7 Correct Methods : Incorrect Methods : Place the monitor on a clean & soft foam pad . If the monitor is placed on foreign objects, that could scratch the surface of the panel. Confidential - Do Not Copy ViewSonic Corporation VX724-1...

  • Page 8: Specification

    1280 x 720, 1280 x 1024 Resolution Compatibility * The image vertical size might not be full screen, but the image vertical position should be at the center. Exclusions Not compatible with interlaced video Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 9 Power Saving Operation(Method) VESA DPMS Signaling ON Mode < 35 W (max) / 32 W (typ) Power Consumption Active Off < 1 W Recovery Time On Mode = N/A, Active Off < 3 sec Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 10 1024 x 768 @ 85Hz, 68.67kHz 1152 x 864 @ 75Hz, 67.5kHz 1152 x 870 @ 75Hz, 68.7kHz 1280 x 1024 @ 60Hz, 63.4kHz 1280 x 1024 @ 75Hz, 79.97kHz 1280x 720 @ 60Hz, 45kHz (HDTV) Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 11 Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory setting when execute “Auto I mage Adjust” The monitor needs to do “Auto Image Adjust” the first time a new mode is detected (see section “0-Touch™ Function Actions”) Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 12 With OD Board (on/ off) 10%-90% @ Ta=25°C Tr = 3.9ms,Tf = 1.5ms Total = 5.4ms (typ) With OD Board (gray –gray) Total = 4 ms Panel Defects Please see Panel Quality Specifications. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 13 With OD Board (on/ off) 10%-90% @ Ta=25°C Tr = 1.4ms,Tf = 5.3ms Total = 6.7ms (typ) With OD Board (gray –gray) Total = 4 ms Panel Defects Please see Panel Quality Specifications. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 14 With OD Board (on/ off) 10%-90% @ Ta=25°C Tr = 1.4ms,Tf = 5.3ms Total = 6.7ms (typ) With OD Board (gray –gray) Total = 4 ms Panel Defects Please see Panel Quality Specifications. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 15 Vertical Display Size, Primary Preset Full Screen Saturation Contrast = Default Brightness = Default No visible saturation TEST PATTERN = 32-GRAY Contrast = 100% Brightness = 100% 6~8 level saturation Test pattern = 32-gray Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 16 Power Supply, and Grounding Artifacts : No visible artifacts in any specified video mode within the horizontal or vertical frequency range of the monitor Temperature Drift : Image shall not drift or lose fine-tune adjustment Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 17 From 0º down to -3º ~ -5 º Mechanical Specifications Screen Printed Parts : Artwork shall be provided by ViewSonic. The ViewSonic Bezel Graphics Specification, VSC_S_299 v.1d (2003) controls logo position Bird Logo : The ViewSonic Bird Logo Plate Specification, VSC_S_286 v.1b controls bird logo position Molded Plastic : Workmanship shall be inspected according to the ViewSonic Molded Plastic Parts Specification, VSCMPPSPEC001 v.1b...
  • Page 18 PACKAGING Package Specifications ViewSonic Packaging Specification The “Top Level Assembly” shall meet the ViewSonic Corporation Packaging Specification, VSCPACSPEC003 The ink shall not rub off after a suitable drying time. The carton shall withstand 10 trips by any combination of air, rail, Multiple Trips land, or sea transportation.
  • Page 19 Sweep Time : 1 oct. / min Test Time : 60 min per axis, total 3 axis / 6 main face -Vibration Test Data shall be submitted for approval to ViewSonic before Mass Production Drop Test (100G) Weak Corner : 76.2 cm Six Faces : 76.2 cm...

  • Page 20: Front Panel Function Control Description

    Also toggles between two controls on and saves some screens. adjustments. Also a shortcut to toggle analog and digital connection. Power light Green = ON Orange = Power Saving Power On/Off Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 21 • 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 VX724-1...
  • Page 22 Enabling the sRGB setting will cause the Contrast and Brightness adjustments to be disabled. 9300K-Adds blue to the screen image for cooler white (used in most office settings with fluorescent lighting). Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 23 Preset Timing Mode, colors return to the 6500K factory preset. Information displays the timing mode (video signal input) coming from the graphics card in the computer, the LCD model number, the serial number, and the ViewSonic website URL. See your graphics card’s user guide for ®...
  • Page 24 Resolution Notice displays the Resolution Notice menu shown below. Resolution Notice advises the optimal resolution to use. OSD Position allows the user to move the on-screen display menus and control screens. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 25 Preset Timing Mode listed in the Specifications of this manual. Exception: This control does not affect changes made with the User Color control, Language or Power Lock setting. Confidential - Do Not Copy ViewSonic Corporation VX724-1...

  • Page 26: Circuit Description

    MNEMONIC SIGNAL DB15HD Red Video Green Video Blue Video None Ground(DDC return) Red GND Green GND Blue GND +5V (for DDC) Sync GND None DDC Data Horizontal Sync Vertical Sync DDC Clock Confidential - Do Not Copy ViewSonic Corporation VX724-1...

  • Page 27: Electrical Specifications

    3. Electrical Specifications 3.1 Standard conditions Display Area 404.2 x 330.0 mm Video Signal 0.7Vpp Contrast Max. Brightness Max. Ambient 20 +/- 5 °C Input Warming up > 30 min Display 1280 x 1024 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 28 Analog video input: 75 ohm Digital video input: 100 ohm Sync input: > 1 k ohm Audio input: 10K ohm 4. Signal Cable: Signal cable with Mini D-Sub 15P connectors at both ends. Length: 1.8 meter. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 29 Red X - 0.640 Green X - 0.290 Blue X - 0.140 White X - 0.313 Red Y - 0.340 Green Y - 0.610 Blue Y - 0.070 White Y - 0.329 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 30 Sync Offset: 1 lines Sync Pulse Width: 3 lines Border: 0 lines Frequency: 60.02 Hz Digital Separate, Horizontal Polarity (+) Vertical Polarity (+) ______________________________________________________________________ (72-89) Detailed Timing / Descriptor Block 2: Monitor Serial Number: PSN050100001 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 31 Max Horiz. Freq - 82 KHz Pixel Clock - 140 MHz Secondary GTF - Not Supported ______________________________________________________________________ (108-125) Detailed Timing / Descriptor Block 4: Monitor Name: VX724 (126) No Extension EDID Block(s) (127) CheckSum OK Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 32 Red X - 0.640 Green X - 0.290 Blue X - 0.140 White X - 0.313 Red Y - 0.340 Green Y - 0.610 Blue Y - 0.070 White Y - 0.329 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 33 Vertical: Active Time: 1024 lines Blanking Time: 42 lines Sync Offset: 1 lines Sync Pulse Width: 3 lines Border: 0 lines Frequency: 60.02 Hz Digital Separate, Horizontal Polarity (+) Vertical Polarity (+) Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 34 Max Horiz. Freq - 82 KHz Pixel Clock - 140 MHz Secondary GTF - Not Supported ______________________________________________________________________ (108-125) Detailed Timing / Descriptor Block 4: Monitor Name: VX724 (126) No Extension EDID Block(s) (127) CheckSum OK Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 35 Blue + Blue - c) OSD: The RTD2523 has a fully programmable, high-quality OSD controller. The on-chip static RAM (4096 words by 24 bits) stores the cell map and the cell definitions. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 36 The desired output voltage is determined by the equation, Volt = 1.25 (1 + R17 / R15). In this case, the output voltage is 2.5 Volts for panel power. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 37 Operation Input Voltage 90~260 Vac, 47 ~ 63Hz Input Current <1.5A Inrush Current <100A@120Vac Standby Input Voltage 12Vdc Output Voltage Regulation +/-5% Output Ripple & Noise 120mVp-p Rate Output Current <3.5A Turn-on delay <3secs Confidential - Do Not Copy ViewSonic Corporation VX724-1...

  • Page 38: Adjustment Procedure

    Press the [2] button to cycle among the colors. Press the [1] button to exit the page. Press the [▲] button to increase the selected color level. Press the [▼] button to decrease the selected color level. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 39 Press the [▲] button to highlight the previous item or the [▼] button to highlight the next item. 1) Language Select Item Press the [2] button to enter the language selection page. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 40 Press the [2] button to select the highlighted option. Press the [1] button to exit the page. (8) Memory Recall Page Press the [2] button to execute the memory recall function. Press the [1] button to exit the page. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 41 Press the [1] button to exit the page. (3) Input Select Page: Press the [2] button to switch to analog input mode. (4) Color Adjust Page: Press the [2] button to enter the color adjustment page. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 42 English, French… Option Press the [2] button to select the language. Press the [1] button to exit the page. 2) Resolution Notice Item Press the [2] button to enter the resolution notice page. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 43 Press the [1] button to exit the Contrast Dialog. Press the [2] button to enter the Brightness Dialog. Press the [▲] button to increase the contrast. Press the [▼] button to decrease the contrast. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 44 [2] button to enter Burn Mode. When Installing a New Main Board 1. Enter Factory Mode. 2. Use a PC or chrom to send a 32-tone gray scale signal to the monitor. 3. Select “Auto Color” Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 45 1024 x 768 @ 85Hz, 68.67kHz 1152 x 864 @ 75Hz, 67.5kHz 1152 x 870 @ 75Hz, 68.7kHz 1280 x 1024 @ 60Hz, 63.4kHz 1280 x 1024 @ 75Hz, 79.97kHz 1280x 720 @ 60Hz, 45kHz (HDTV) Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 46 Full black Full black Pattern 7 5-cycle pattern 5-cycle pattern Check the BU Pattern 8 1-dot pattern 1-dot pattern Check the flicker Pattern 9 Pattern 1 Pattern 2 Pattern 3 Pattern 4 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 47 Pattern 5 Pattern 6 Pattern 7 Pattern 8 Pattern 9 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 48 When examining a monitor, please check whether the firmware version is the latest. If not, please follow the procedure below to upgrade to the latest version. 1. Equipment needed : VX724 PC ( Personal computer ) LPT cable Fixture (LM5ISP) Firmware upgrade program Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 49 Software: If OS is Win2000 or WinXP, please install "PORT95NT.exe". In order to ensure that the system can execute the ISP program, please adjust the BIOS settings in the PC or notebook as shown in Fig 0.0. Fig 0.0 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 50 2. Double-click the "PORT95NT.exe" icon in Windows and install the program; see Fig 0.1. Fig 0.1 3. Continue through the installation process by pressing "Next" four times; see Fig. 0.2. Fig. 0.2 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 51 4. Choose "Typical" then press "Next;" see Fig. 0.3. Fig. 0.3 5. Continue through the installation process by pressing "Next" four times; see Fig. 0.4. Fig. 0.4 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 52 1. The user may download the ISP driver and PORT95NT installation package from the Myson Century website (www.myson.com.) 2. The files extracted from the ZIP file are listed in Fig 1.0. Double-click setup.exe to install. Fig 1.0 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 53 3. Press the "Next" button to continue; see Fig 1.1. Fig 1.1 4. Press the "Change" button to change the install path if desired, and then press the "Next" button to continue; see Fig 1.2. Fig 1.2 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 54 5. Press the "Install" button to continue; see Fig 1.3. Fig. 1.3 6. When installation has finished, press the "Finish" button; see Fig 1.4. Fig. 1.4 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 55 3. The warning shown in Fig. 2.3 is used to remind the user that a CPU rate that differs from IIC protocol may cause the ISP functions to fail; press the "OK" button. Fig. 2.3 Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 56 4. As shown in Fig. 2.4, press the "Create Security File" button to key in a security code, and use the slider bar to adjust the speed of the IIC bus. S p eed of IIC bus Securit y code Fig. 2.4 ViewSonic Corporation Confidential - Do Not Copy VX724-1...
  • Page 57 7C, 4C, 77. The command numbers and commands must be set by the user while coding. For more details, please refer to section 6 boot code of ISP. Fig. 2.5 ViewSonic Corporation Confidential - Do Not Copy VX724-1...
  • Page 58 1. As shown in Fig. 3.1, select the MTV type first, load the binary or intel hex file to be programmed into the MCU, click "OK," then press the "RUN" button. Ste p 2 Ste p 1 Ste p 3 Ste p 4 Fig. 3.1 ViewSonic Corporation Confidential - Do Not Copy VX724-1...
  • Page 59 3. CRC (cyclic redundancy check): the host can check the result in the CRC register instead of reading every byte in flash. The Check MCU CRC OK message indicates that the host has verified the program's CRC; see Fig.3.2. Fig. 3.2 ViewSonic Corporation Confidential - Do Not Copy VX724-1...

  • Page 60: Troubleshooting Flow Chart

    6. Troubleshooting Flow Chart 1. Display color abnormal: Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 61 Change X1 / X2 Check crystal X1 / X2? Check CN 6, R79 Change failed part Pin 40 of U6? Check power supply Fix power supply circuit (12V, 5V, 2.5V & 3.3V) Change M/B Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 62 3. Monitor white screen Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 63 4. Monitor black screen Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 64 5. Analog input: always shows NO SIGNAL: Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 65 6. Digital input: always shows NO SIGNAL Confidential - Do Not Copy ViewSonic Corporation VX724-1...

  • Page 66: Recommended Spare Parts List

    Remark 2: All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by ViewSonic Corporation. This is to eliminate repeated cross checks of each item between this version and prior versions.
  • Page 67 Remark 2: All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by ViewSonic Corporation. This is to eliminate repeated cross checks of each item between this version and prior versions...
  • Page 68 BOM LIST (VX724-1 for "AUO Panel") ViewSonic Model Number: VS10049-1W Rev: 1a Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A 1L7VDZAVS81 L7VD LCD M+OD((L7VDA-5,AU)US(VX724) B-00002839 29L9I0MB017 L9I M/B ASSY(FOR L7VDA-5 REALTEK,2523)AU #N/A 39L9IDP0056 L9I M/B DIP ASSY(L9VDA-5 REALTEK)2523...
  • Page 69 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty M-SCW-0824-0813 MF30060BBJ6 SCREW F3.0*6-B(NI) #N/A EBL7V030013 PCB SPACER L7VD(EBL7V030,REV3A) CB-00002522 DD0L9V0B000 CABLE MB-OVER DRIVER(30P,50MM)L9V-5 GP #N/A 24L7VDPK002 L7VDA-5 PACKING ASSY(USA) M-MS-0808-9399 DDL7VDPC005 CABLE MB-VGA (15/15P,1.8M)L7VD GP A-PC-0106-0224 DM333181G97 POWER CORD 3P 1.8M(USA)V04VS350012180...
  • Page 70 BOM LIST (VX724(QDI)) ViewSonic Model Number: VS10049 Rev: 1c Serial No. Prefix: Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 1L7VDZXVS49 L7VDQ-4 LCD MONITOR(USA) GP 21L9TAMB0C1 L9TA M/B ASSY(FOR L7TA-D)RTD2523 GP 31L9TASS0B8 L9TA M/B S/S ASSY(FOR L7TA-D)RTD2523 GP...
  • Page 71 8. Exploded Diagram and Spare Parts List VX724-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 72 EXPLODED PARTS LIST (VX724-1 for "AUO V.8 (4ms) Panel") ViewSonic Model Number: VS10049 Rev: 1a Item ViewSonic P/N Ref. P/N Description Q'ty C-FP-0301-0992 EAL7V019019 Bezel C-FP-0301-0994 EAL7V020017 Middle bezel PL-BT-0706-0165 EBL7V027012 CONTROL BUTTON L7VD(EBL7V027,REV3A) M-MS-0808-9401 EBL7V028019 LENS M-MS-0808-9243 FEL7V003019 Logo front -VSC...
  • Page 73 EXPLODED PARTS LIST (VX724-1 for "QDI (8ms) Panel") ViewSonic Model Number: VS10049 Rev: 1c Serial No. Prefix: PSN Item ViewSonic P/N Ref. P/N Description Q'ty C-FP-0301-0992 EAL7V019019 Bezel C-FP-0301-0994 EAL7V020017 Middle bezel PL-BT-0706-0165 EBL7V027012 CONTROL BUTTON L7VD(EBL7V027,REV3A) M-MS-0808-9401 EBL7V028019 LENS...
  • Page 74 Packing for shipping PACKING PART LIST (VX724-1) ViewSonic Model Number: VS10049 Rev: 1a Item ViewSonic P/N Ref. P/N Location Q'ty #N/A 1L7VDZAVS81 VX724 unit P-FM-0602-0875 HBL7V007011 END CAP(L) P-FM-0602-0876 HBL7V008018 END CAP(R) DC-00002835 HGL7V021019 User manual & CD A-PC-0106-0224 DM333181G97 Power cord 3P 1.8M...
  • Page 75 Packing procedure 1. Apply protective film to the display surface. 2. Put the monitor in EPE bag and seal the bag with tape. 3. Fit the cushions onto the monitor. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 76 4. Put the monitor into the carton and put all the accessories into the carton. Then close the carton. Q SG Power cord Disassembling the monitor 1. Turn the monitor to face the back and remove the I/O cover. 2. Remove the stand back cover. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 77 3. Remove the four black hinge screws and separate the stand and head pieces. 4. Place the monitor face-down on a soft, flat, stable surface. 5. Separate the back cover and the front bezel. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 78 6. Remove the screws that fix the button board (B/B) and pull the cable out from the connector on the main board (M/B). 7. Remove the B/B. 8. Remove the screws on the PCB shield; remove the PCB shield. Screws Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 79 9. Remove the MB-LCD connector and loosen the four screws on the PCB holder. Screws 10. Separate the PCB holder from the panel. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 80 11. Loosen the four screws on the sides of the panel. 12. Remove the front bezel and panel. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 81 13. Remove the four hexagon screws beside the DVI & D-SUB connectors. 14. Remove the screws that fix the power board and main board. Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 82 REALTEK RTD2523BLOCK DIAGRAM DDC-SCL;DDC-SDA POWER HSYNC ,VSYNC Triple ANALOG AR AG AB AIC1563 Interface 3.3V AIC117ADJ 2.5V AIC1117ADJ 24C02 RTD2523 Clock Crystal Panel GEN. 24.576MHz LVDS+ Interface 17” Panel LVDS- CLK+ CLK- EEPROM 24C16 Host Interface Panel Inverter Switch MTV312V64 control Si2301DS ADAPTOR...
  • Page 84 LCDVCC LVDS) POWER +3.3V EEPROM +3.3V +3.3V 24LC16 MICRO-CONTROLLER MTV312 AC 90-264V POWER INVERTER +12V +5.0V AIC1739 +2.5V AND AUDIO BOARD 1563 AIC1739 +3.3V ViewSonic Corporation Model BLOCK DIAGRAM Title Date Rev: Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 85 100/6NC Hot_plug R159 TX0- RX0- R160 TX0+ RX0+ RX5- RX5+ R161 TXC+ RXC+ R162 TXC- RXC- ViewSonic Corporation 0.1U/6/NC Z5.6/NC 1U/6NC Z5.6/NC Z5.6/NC Z5.6/NC Z5.6/NC 10K/6NC Model VGA AND DVI INPUT Title DVI-D/NC Date Rev: Confidential - Do Not Copy...
  • Page 86 TCON7 22/6 TCON8 22/6 BXDIO RTD_SCLK RTD_SDO/SDI TEST POINT SDIO1 TCON9 22/6 YCLK SDIO2 TCON10 22/6 YDIO SDIO3 TCON11 22/6 RTD_SCSB 100/6 RESET ViewSonic Corporation DDC_SDA DDC_SCL Model RTD_2523 Title Date Rev: Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 87 R124 100/6 DDC_SDA P6.6 P3.1/TXD STBY PWR_SEL R125 100/6 DDC_SCL P6.7 P3.0/RXD MTV312M64 R109 4.7K/6 5DVCC VCC12 R108 4.7K/6 HEADER 4 6.8K/6 ViewSonic Corporation 2K/6 Model MCU & BUTTON Title Date Rev: Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 88 PANEL_3VCC PANEL_5_12VCC YCLK NC/FEB_1206 YDIO If panel is 3.3V LVDS IF, L30 must add the part 2004/4/14 PANEL_3VCC FEB_0805/NV FEB_0805/NC FEB_0805/NC FEB_0805/NC PANEL_5_12VCC ViewSonic Corporation RSDS_CON50/NC Model PANEL INTERFACE Title Date Rev: Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 89 3.3V 0.8A Max VOUT CX000800000/8 ADJ/GND 200/6 1% AIC1084/TO252 330/6 1% LVDS_GND MTH276D126 MTH276D126 LVDS_GND LVDS_GND LVDS_GND LVDS_GND MTH276D126 ViewSonic Corporation LVDS_GND LVDS_GND Model Title Date Rev: Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 90 5 6 7 8 5 6 7 8 5 6 7 8 DRAM_16M DRAM_16M 3.3V SDRAM1_3.3V CX00080 0000/8 DGND DGND DGND SDRAM2_3.3V 3.3V CX00080 0000/8 DGND VTIO3601_16Mbx4 Ref. Circuit ViewSonic Corporation Model Title Date Rev: Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 91 VCPU 10K/6/NC NC/CX201209805/8 3DVCC MMBT3906 CX201209805/8 1K/6 DSUB_5V 1N4148 1N4148 4.7K/6 C100 C101 0.1u/6 NC/6 R143 1U/8 4.7K/6 SN7002E VBRI 3DVCC MMBT3906 ViewSonic Corporation R144 4.7K/6 Model POWER Title DGND Date Rev: Confidential - Do Not Copy ViewSonic Corporation VX724-1...
  • Page 92 Control Board 11. PCB Layout Diagrams Main Board Confidential - Do Not Copy ViewSonic Corporation VX724-1...

  • Page 93: Exploded Diagram And Exploded Parts List

    Add: Tel: Fax: 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...

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