ViewSonic VX922-1 Service Manual
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ViewSonic VX922-1 Service Manual

ViewSonic VX922-1 Service Manual

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Service Manual

ViewSonic VX922-1
Model No. VS10162
19" Color TFT LCD Display
(VX922-1_SM Rev. 1c Nov. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA – (800) 888-8583

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  • Page 1: Service Manual

    Service Manual ViewSonic VX922-1 Model No. VS10162 19” Color TFT LCD Display (VX922-1_SM Rev. 1c Nov. 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 VX922-1...

  • 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • 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." VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 8: Specification

    Resolution Compatibility x 960, 1280 x 1024 * 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 VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 9 On Mode < 40 W (Max) / 38W (Typ) Power Consumption Saving Mode < 2 W, Off Mode < 1 W Recovery Time On Mode = N/A, Active Off < 3 sec VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 10 Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory ● setting when execute “Auto Image Adjust” The monitor needs to do “Auto Adjust” the first time when a new mode is detected ● (See section “0 -Touch™ Function Actions”) VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 11 Tr = ms,Tf = ms Total = ms (typ) T.B.D T.B.D T.B.D With OD Function (gray –gray) One-way (Average of Tr and Tf) = ms (typ) Panel Defects Please see Panel Quality Specifications. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 12 135º MINIMUM: 115º Without OD Function (on/off) Tr+Tf =5 ms (typ) Response Time 10%-90% @ Ta=25°C With OD Function (Gray –Gray Average) = ms (typ) Panel Defects Please see Panel Quality Specifications. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 13 Full Screen Saturation Contrast = Default Brightness = Default No visible saturation Test Pattern = 64-Gray Contrast = 100% Brightness = 100% 6 – 8 level saturation (Max) Test Pattern = 64-Gray VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 14 370 mm (14.6 inch) Depth 66 mm (2.6 inch) Monitor Weight 5.3 Kg (11.7 lbs) Ergonomics Tilt Up From 0º up to ≧20º Tilt Down From 0º down to -3º ~ -5º VX922-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 15: 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 VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 16 • 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.) VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 17 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). VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 18 Preset Timing Mode, colors return to the 6500K factory preset. Information displays the timing mode (video signal input) coming from the graphics card in your computer, the LCD model number, the serial number, and the ViewSonic website URL. See your graphics card’s user guide for ®...
  • Page 19 Language allows you to choose the language used in the menus and control screens. Resolution Notice displays the Resolution Notice menu shown below. Resolution Notice advises the optimal resolution to use. OSD Position allows you to move the on-screen display menus and control screens. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 20 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 21: 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 VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 22 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 VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 23 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 24 640 X 480 @ 60Hz (IBM,VGA) 640 X 480 @ 67Hz (Apple,Mac II) 640 X 480 @ 72Hz (VESA) 640 X 480 @ 75Hz (VESA) 800 X 600 @ 56Hz (VESA) 800 X 600 @ 60Hz (VESA) VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 25 Max Horiz. Freq - 82 KHz Pixel Clock - 140 MHz Secondary GTF - Not Supported ______________________________________________________________________ (108-125) Detailed Timing / Descriptor Block 4: Monitor Name: VX924 (126) No Extension EDID Block(s) (127) CheckSum OK VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 26 640 X 480 @ 60Hz (IBM,VGA) 640 X 480 @ 67Hz (Apple,Mac II) 640 X 480 @ 72Hz (VESA) 640 X 480 @ 75Hz (VESA) 800 X 600 @ 56Hz (VESA) 800 X 600 @ 60Hz (VESA) VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 27 Max Horiz. Freq - 82 KHz Pixel Clock - 140 MHz Secondary GTF - Not Supported ______________________________________________________________________ (108-125) Detailed Timing / Descriptor Block 4: Monitor Name: VX924 (126) No Extension EDID Block(s) (127) CheckSum OK VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 28 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 29 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 30 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 VX922-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 31: 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 32 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 33 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 34 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 35 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 36 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. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 37 [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” VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 38 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) VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 39 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 VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 40 Pattern 5 Pattern 6 Pattern 7 Pattern 8 Pattern 9 VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 41 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 : VX924 PC ( Personal computer ) LPT cable Fixture (LM5ISP) Firmware upgrade program VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 42 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 VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 43 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 VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 44 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 VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 45 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 VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 46 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 VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 47 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 VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 48 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 VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 49 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 VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 50 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 VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 51 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 VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 52 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 VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 53 Please must set the monitor in USER mode, not factory mode Open DDC file After installation , we could find the shortcut in the setting path or the program bar ( default setting ) . VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 54 Please press Select Analog DDC file to be loaded Step 1 : Software will pop out a message. Select the Analog DDC file to load. Step 2 : Press “Open” icon VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 55 Check DDC data Check whether the DDC data is loaded in the “TVI_Tool” table. VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 56 Write DDC to IC Step 1 : Select “512M” Step 3: Key in the S/N Select “Detailed Timeings” / Select “Block 2” Key in the S/N on the monitor VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 57 Step 2 : Press “Write to IC” icon VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 58 Step 4: Check the result Write Success : you will see “Compare OK” message in yellow column. VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 59 : Check the power cable is plug on b.2 : Check the signal cable is correct b.3 : Check you are in USER mode, not in Factory mode b.4 : Check whether you load correct DDC file VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 60 Please must set monitor in USER mode , not factory mode Open DDC file After installation , we could find the shortcut in the setting path or the program bar ( default setting ) . VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 61 Please press VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 62 Select DVI DDC file to be loaded Step 1 : Software will pop out a message. Select the Digital DDC file to load. Step 2 : Press “Open” icon VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 63 Check DDC data Check whether the DDC data is loaded in the “TVI_Tool” table. VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 64 Write DDC to IC Step 1 : Select “24C02” VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 65 Step 2: Key in the S/N: a) Select “Detailed Timeings” b) Select “Block 2” Key in the S/N on the monitor VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 66 Step 2 : Press “Write to IC” icon VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 67 Step 3: Check the result Write Success : you will see “Compare OK” message in yellow column. VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 68 : Check the power cable is plug on b.2 : Check the signal cable is correct b.3 : Check you are in USER mode, not in Factory mode b.4 : Check whether you load correct DDC file VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 69 Please use VGA cable as bellowing picture. Please must plug off power cable first and then plug on power cable again Read Analog DDC from IC Step 1 : Press to read Analog DDC from IC VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 70 Step 2: Check the result a) Read success : you will seed “Read OK” message VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 71 Please recheck following settings is correct: b.1: Check the power cable is Re-plug on b.2: Check the signal cable is correct and well-plugged b.3: Check you are in USER mode , not in Factory mode VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 72 Please conntect VGA-DVI cable as bellowing picture. Please must plug off power cable first and then plug on power cable again Read DVI DDC from IC Step 1 : Press to read DVI DDC from IC VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 73 Please recheck following settings is correct: b.1: Check the power cable is Re-plug on b.2: Check the signal cable is correct and well-plugged b.3: Check you are in USER mode , not in Factory mode VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 74 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. VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 75 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. VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 76 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. VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 77 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 VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 78 9. Remove the MB-LCD connector and loosen the four screws on the PCB holder. Screws 10. Separate the PCB holder from the panel. VX922-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 79 11. Loosen the four screws on the sides of the panel. 12. Remove the front bezel and panel. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 80 13. Remove the four hexagon screws beside the DVI & D-SUB connectors. 14. Remove the screws that fix the power board and main board. VX922-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 81: Troubleshooting Flow Chart

    6. Troubleshooting Flow Chart 1. Display color abnormal: VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 82 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 VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 83 3. Monitor white screen VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 84 4. Monitor black screen VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 85 5. Analog input: always shows NO SIGNAL: VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 86 6. Digital input: always shows NO SIGNAL VX922-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 87: 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 VX922-1...
  • Page 88 BOM LIST (VX922-1) ViewSonic Model Number: VS10162 Rev: 1c Serial No. Prefix: PXU Item ViewSonic P/N Ref. P/N Description Universal number# Q'ty Location 1L9VZHVS002 L9V M(L9VD-H2,VX922,RTD2363)USA GP 21L9ZAMB036 L9ZA M/B ASSY(FOR L9TA-D4U,RTD2363) GP 31L9ZASS031 L9ZA M/B S/S ASSY(L9TA-D4U,RTD2363) GP CC62204MD23...

  • Page 89: Exploded Diagram And Exploded Parts List

    8. Exploded Diagram and Spare Parts List ViewSonic Corporation Confidential - Do Not Copy VX922-1...
  • Page 90 EXPLODED PARTS LIST (VX922-1) ViewSonic Model Number: VS10162 Rev: 1b Serial No. Prefix: PXU Item ViewSonic P/N Ref. P/N Description Q'ty M-MS-0808-9402 FEL7V007014 BIRD LOGO L7VD(FEL7V007,REV3A) EAL9V006010 LCD MASK L9VDQ-4(EAL9V006,REV3A) GP M-MS-0808-9243 FEL7V003019 LOGO FRONT-VSC-38MM L7VC(FEL7V003,REV3A) M-SCW-0824-6802 MM30040IBJ9 SCREW M3.0*4.0-I(NI) GP...
  • Page 91 Packing for shipping PACKING PART LIST (VX922-1) ViewSonic Model Number: VS10162 Rev: 1a Serial No Prefix: PXU Item ViewSonic P/N Ref. P/N Location Q'ty #N/A 1L9VDZCVS00 VX922 LCD MONITOR P-FM-0602-0896 HBL9V001019 END CAP(L) P-FM-0602-0897 HBL9V002015 END CAP(R) DC-00003995 HGL9V019010 CD+QSG...

  • Page 92: Block Diagram

    9. Block Diagram VX922-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 93 VX922-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 94: Schematic Diagrams

    LCDVCC LVDS) POWER +3.3V EEPROM +3.3V +3.3V 24LC16 MICRO-CONTROLLER MTV312 POWER INVERTER AIC1739 AC 90-264V +12V +5.0V +2.5V AND AUDIO BOARD 1563 AIC1739 +3.3V ViewSonic Corporation BLOCK DIAGRAM Model Title Date Rev: ViewSonic Corporation Confidential - Do N Copy VX922-1...
  • Page 95 RX1+ RX3- RX3+ Bus_Power Z5.6/NC Z5.6/NC 10K/6NC 100/6NC Hot_plug R159 TX0- RX0- R160 TX0+ RX0+ RX5- RX5+ R161 ViewSonic Corporation TXC+ RXC+ R162 TXC- RXC- VGA AND DVI INPUT Model 0.1U/6/NC Z5.6/NC 1U/6NC Z5.6/NC Z5.6/NC Z5.6/NC Z5.6/NC 10K/6NC Title DVI-D/NC...
  • Page 96 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 DDC_SDA DDC_SCL ViewSonic Corporation RTD_2523 Model Title Date Rev: ViewSonic Corporation Confidential - Do N Copy VX922-1...
  • Page 97 R124 100/6 P6.6 P3.1/TXD DDC_SDA STBY PWR_SEL R125 100/6 P6.7 P3.0/RXD DDC_SCL MTV312M64 R109 4.7K/6 5DVCC VCC12 R108 4.7K/6 HEADER 4 6.8K/6 ViewSonic Corporation 2K/6 MCU & BUTTON Model Title Date Rev: ViewSonic Corporation Confidential - Do N Copy VX922-1...
  • Page 98 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 RSDS_CON50/NC ViewSonic Corporation PANEL INTERFACE Model Title Date Rev: ViewSonic Corporation Confidential - Do N Copy VX922-1...
  • Page 99 SPKOUTR MUTE OUTR AGND 330U/16V/NC AGND MUTE MUTE TDA7496L/NC DTC144EUA/NC AGND L23 BEAD/1206/NC VCC12 AGND AGND AGND R140 10K/6/NC R141 10K/6/NC STBY STBY DTC143EUA/NC AGND ViewSonic Corporation AUDIO Model Title Date Rev: ViewSonic Corporation Confidential - Do N Copy VX922-1...
  • Page 100 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 LVDS_GND LVDS_GND ViewSonic Corporation OVER DRIVER Model Title Date Rev: ViewSonic Corporation Confidential - Do Not Copy VX922-1...
  • Page 101 5 6 7 8 5 6 7 8 5 6 7 8 CX00080 0000/8 DRAM_16M DRAM_16M DGND DGND DGND SDRAM2_3.3V 3.3V CX00080 0000/8 DGND ViewSonic Corporation BLOCK DIAGRAM Model Title Date Rev: ViewSonic Corporation Confidential - Do Not Copy VX922-1...
  • Page 102 3DVCC 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 ViewSonic Corporation 1U/8 4.7K/6 SN7002E VBRI 3DVCC MMBT3906 POWER Model R144 4.7K/6 Title DGND Date Rev: ViewSonic Corporation Confidential - Do N Copy...

  • Page 103: Pcb Layout Diagrams

    Control Board 11. PCB Layout Diagrams Main Board Confidential - Do Not Copy ViewSonic Corporation VX922-1...

  • Page 104: Viewsonic Corporation

    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) ViewSonic Corporation Confidential - Do N...

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