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ViewSonic VG930M - 19" LCD Monitor Service Manual

19” color tft lcd display
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Service Manual

ViewSonic VG930m-3
VA930m-1
Model No. VS11369
19" Color TFT LCD Display
(VG930m-3_VA930m-1_SM Rev. 1a Oct. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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  Summary of Contents for ViewSonic VG930M - 19" LCD Monitor

  • Page 1: Service Manual

    Service Manual ViewSonic VG930m-3 VA930m-1 Model No. VS11369 19” Color TFT LCD Display (VG930m-3_VA930m-1_SM Rev. 1a Oct. 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 ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 4: Precautions And Safety Notices

    In case parts need to be replaced, you must use identical parts or those supplied by our certified manufacturers. Any other parts used without our authorization may result in electrical shock or fire risk. ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 5 DO not touch the surface of the POL may cause”mura” Taking out the monitor by grasping the LCD panel, that Take out the monitor with cushions May cause”mura” ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 6 Place the monitor on a clean and soft foam pad Placing the monitor on a foreign objects, that could scratch The surface of the "Panel" or cause "mura" The panel is placed facedown the lap,that may cause "mura" ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 7: Specification

    N/A (degrees; typ) 16.2 million colors (6+2 bit panel) Colors CR >= 5 300 cd/m2 Luminance 8 ms Response Time On/Off 4 CCFL Backlight 40000 Hrs (Min) Backlight Life 3 mg per lamp Mercury ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 8 Digital 8 POWER Voltage AC 100-240V (Universal); 50-60 Hz Consumption Typ/Max 35 W / 40 W 9 ERGONOMICS Tilt 20 ~ -5 degrees Swivel 360 degrees Height Adjust 0 ~ 80 mm ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 9 Energy Star, CCC, BSMI, PSB, C-TICK, SASO, WEEE, RoHS 17 RELIABILITY MTBF 100,000 Hr (Excluding Panel). 18 POWER "On" Blue Normal ≦1 W SAVING " Active Off" Amber FUNCTION “Off” ≦1 W ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 10 LCD Display Contents Power Cable Video Cable Audio Cable Quick Start Guide ViewSonic Wizard CD-ROM 23 Packaging Carton -- One piece construction with signal wall, 0.65 Kg Information Plastic Handle -- PE-LD, 12g Poly Foam -- EPS, 207g, 2 pices...
  • Page 11: Front Panel Function Control Description

    Scrolls through menu options and adjusts the displayed control. Also a shortcut to display the Contrast adjustment control screen. Displays the control screen for the highlighted control. Also toggles between two controls on some screens. ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • 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.) ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 13: Main Menu Controls

    7500K-Adds blue to the screen image for cooler white (used in most office settings with fluorescent lighting). 6500K-Adds red to the screen image for warmer white and richer red. 5400K-Adds green to the screen image for a darker color. ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 14 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 15 OSD Timeout sets the length of time the OSD screen is displayed. For example, with a “30 second” setting, if a control is not pushed within 30 seconds, the display screen disappears. ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 16 OSD Background allows the user to turn the OSD background On or Off. Memory Recall returns the adjustments back to factory settings if the display is operating in a factory Preset Timing Mode listed in the Specifications of this manual. ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 17: Circuit Description

    ON/OFF ON : 3.3Vdc or 5.0Vdc ; OFF : 0V 4. 5 3. 4 DC-Output 5.0±5%Vdc / 2500mA 2. 3 1. 2 DC-Output -8±10%Vdc / 100mA(Optional) High Voltage CON901~CON904 Return Return Pin ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 18 – Measurement Time : 3sec – Temperature : 25℃± 5℃ 2) A method of measurement : Injection current between Utility F.G. (inlet socket F.G.) and output ground (heat sink) 3) Criterion for Judging : ≦Resistor 100mΩ ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 19 50±5KHz 7.5±0.5mA 22~28Vdc 3.3Vdc 5.0Vdc PANEL / 50±5KHz MEET L NEED Jumper 3.3Vdc or 17'' or 19'' 22~28Vdc 0Vdc 3.5±0.5mA 5.0Vdc PANEL 0Vdc or 17'' or 19'' 22~28Vdc 0Vdc NO Output 3.3Vdc PANEL ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 20: Viewsonic Corporation

    WAITTING 5V Load=50~80mA , 7V ~ 12V 4.75V ~ 5.25V 11.5V ~ 16V 22.6V~30V Ripple & Noise 200mVp-p 100mVp-p 300mVp-p 300mVp-p WAITTING MERIT : AC INPUT 240Vac , NO Load (L=80mm) INTRODUCTION : ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 21 AC INPUT 90 Vac ~264Vac, <100mS . AC ELECTRICITY TIME DELAY WHEN AC INPUT , OUTPUT VOLTAGE SHOULD WITHIN 1.5S . SURGE ELECTRI CURRENT AC INPUT 240Vac . PROTECT FOR SHORT CIRCUIT PROTECT FOR OVER-CURRENT ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 22 On/Off Control Vin=24V, On/Off=0V Shunt-down (Lamp off) Dim Adjust (Lamp BL-ADJ = 3.3V, Max Current BL-ADJ 0V ~ 3.3V Current Control) BL-ADJ = 0V, Min Current Kick-Off Vk-off Kick-Off More than 1500 Voltage(Vrms) ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 23 Ground +5V (for cable detect) V-Sync Ground Connector detector Clock line (SCL)* *Compliant to VESA DDC. 4.5.2Audio Input (line-in) Item Specifications Input Voltage 1 Vrms Output Power 1 W dual channel output ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 24: Adjusting Procedure

    5. Adjusting Procedure Setup Procedure. ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 25 ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 26 Installation will create a icon for ISP application in “START MENU”\PROGRAM Press “finish” button exit setup ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 27: Firmware Update Procedure

    Main board, refer to MCU-RSIC type and choose the method. Below form appear the relation between the method and the MCU-RSIC type METHOD ASIC JUMPER MYSON M-STAR & NOVATEK PIN2-3 CLOSED OTHER REALTEK PIN1-2 CLOSED ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 28 LPT PORT TEST PC Fixture ISP_CORD Fixture POWER_ADAPTER AC power Cable LPT Cable VGA Cable ISP3.0 SOFT USB FOR PRINT ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 29 Step17.2.4.1 connect all kinds of cable with PC ok, turn on the computer and open the ISP.EXE Isp.exe Step17.2.4.2 The “ISP.EXE” application is running as the below picture. Press the “create security file” Button to create a security file ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 30 4. second, key “94,94,AC,CA,53”in the ISP slave add. Slave b add. Command1.Command2. command3.table, the below form showed the data list Setp17.2.4.4 Select MTV Type in the “MTV type” list . VG930 monitor must be choose the “MTV512M64”option ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 31 2. Entry to interface of selecting file 4.Check the BIOS checksum 3. Open file and load file ok Step17.2.4.6 Select the program upgrade made must be select “autorun” mode at this . ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 32 Step17.2.4.7 click the “run” button to upgrade monitor’s firmware. Step17.2.4.8 Firmware is upgraded ok .please check the data of “S/W CRC” “H/W CRC”“CHECKSUM” “MAX ADDR” . ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 33 DYNACOLOR DDC Tester System software Barcode Scanner *1 AC POWER Source one additional monitor for Test System displaying DDC CORD Barcode Scanner D8330 CORD RS232-VGA Cable AC POWER Cable RS232-DVI Cable DDC TESTER SOFT ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 34 Before install DDC Tester System Soft , please checking the D8330 CORD is plugged Or the DDC Tester application could’t be run . 17.3.2.3.1 Install DDC Tester System by selecting and checking setup.exe icon. Press “YES” or “NEXT” Buttons until the installation is completed. ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 35 ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 36 ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 37 DDC Key In Procedure Step 1 select and execute DDC Key In program ( winDDC.exe icon on desktop ) ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 38 Step 2 Load DDC source file Step2.1 Choose “File “menu, click “Model Edit “and entry” model edit “ialog box Step2.2 Press “Brower” button , set current DDC_LOAD_FILE working path ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 39 Step2.3 click “working Model”, select Model in list box Step2.4 Return to main windows of “ WinDDC.exe”. And choose DDC file in “work Model” down-list box ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 40 “enter” key . Step 4 The successful picture is as follows. The EDID data Description will appear the bottom of windows The EDID Data will appear the top of windows. ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 41 Step5.2 open up the “my computer” attribute dialog box, select the “hardware” option, open up “drive management”. Below the monitor catalog, uninstall the monitor. Step5.3 Scan the hardware change ,until system find the new monitor driver ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 42 Step5.4 Select and click the “EDIDW2K.EXE “file, the EDID information will show on the screen Setp5.5 Ckeck the DDC ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 43 Packing For Shipping And Disassembly Procedure ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 44: Disassembly Procedure

    Disassembly Procedure 1. (Take down the cover of bracket) 2. (4PCS)(Take down fixed screws on hinge) ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 45 3 (3PCS)(Take down the rear cover screws) 4. (Take apart the rear cover) ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 46 5. (Take down the speaker for right & left) 6. (Take down fixed wire of speaker; Unplug the wire of speaker) 7. (Take down fixed ALT of wire on key-board; then, Unplug wire of main board) ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 47 8. (Take down the screws on key-board) 9.((Take down the ALT of wire on lamp) ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 48 10.(Take down the screws on screen cover) 11. ( Take down the ALT of wire with main board & power board) 12. ( Take down fixed the FFC ALT ) (Take down the FFC) ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 49 13 (Take down the FFC) ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 50 14. ( Unplug the linked wire with main board & lamp) 15.Take down the screws of power board & then take down the power board) ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 51 ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 52 16. ( Take down the screws of main board & then take down the main board) ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 53 17. Tear down the around hook outside, and then take down the Bezel. ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 54 18.Take down the main hob around the sides of screws, and then take down the main hob. ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 55 ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 56: Troubleshooting Flow Chart

    6. Troubleshooting Flow Chart Main Procedure Start Connect all of devices to the LCD monitor Power On A. Power Circuit Is indicator LED Troubleshooting light? ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 57 B. Backlight Is backlight on? Troubleshooting C. Performance Display Performance Troubleshooting O.K.? D. Function Function Adjustment Troubleshooting O.K.? E. Audio Audio Function O.K.? Troubleshooting No Trouble Found ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 58 A. Power Circuit Troubleshooting Start Change AC/ DC Adapter Retry Power Change Main Board & Retry No Trouble Found ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 59 B. Backlight Troubleshooting Start Change Inverter and Retry Change Main Board& Retry Backlight Change Module No Trouble Found ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 60 Board Screen is Change Change Main Change LCD flickering? Inverter Board Board Module Change LCD LCD Line Defect? Module Change LCD Bad Uniformity? Module Check Change Main Is screen white? Connector Board ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 61 Screen with noise or line Prss Reset Button from bar? front panel control Change Main Board Make sure relution is set Screen is smaller? at default Reset O.K.? Change Main Board No Trouble Found ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 62 D. Function Troubleshooting Start Change Control Menu not Control Board Functioning? and Retry? Change Main Board No Trouble Found ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 63 Audio Troubleshooting Start Make sure sound output, Audio cable is OK. Change No Sound Speaker Change Sound is broken? Speaker Volume Change Main Unadjustable? Board No Trouble Found ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 64: 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 65 (10mm*14mm) Bird logo E015-016-1-W VIEWSONIC AL 38MM E-00005792 E34862190H303 LCD MODULE HSD190ME13-A16 1280×1024 [SX] 19" LVDSHANNSTAR F000417VAK001 Quick Install Manual LM/MR17V-AAAD L190*W127mm for viewsonic VG730m REV:0 F001217043001 USER'S GUIDE LM/LM1704 ENGLISH L210*W148mm for ViewsonicREV:0 F101415170401 MARK LM/LM1704 L11*W11mm energy star DC-00008064 F10250619VA01 Safety Label LM/MR19V-AAAD L150.5*W29.5mm for viewsonic VG930m...
  • Page 66 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty J4509100306H1 FFC CONN ,30 PIN,1.0,DIP 180°,1 ROW,Cvilux 16301V0T0 or compatible BEAD Chip Beads DDY160808U011MB 10Ω 200mA 0603(1608) TAPING MAGIC LEAD L004100201101 FREE (SMD) L012121201113 BEAD CHOKE Ferrite(generalcircuit) DDY160808U121MB120Ω 200mA 0603(SMD) CHIP BEAD Ferrite Chip Beads (high current) WB201209B601QLT02 120Ω...
  • Page 67 E015-016-1-W VIEWSONIC AL38MM LCD MODULE HSD190ME13-A16 1280×1024 [SX] 19" LVDS E34862190H303-A E-00005792 HANNSTAR(8B0/G0/A0"A" FOR VA/VG Quick Install Manual LM/MR17V-AAAD L190*W127mm for viewsonic VG730m F000417VAK001 REV:0 F001217043001 USER'S GUIDE LM/LM1704 ENGLISH L210*W148mm for ViewsonicREV:0 Explanation card LM/MR17V-AAAD ENGLISH L210*W148mm for viewsonic...
  • Page 68 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty C4022204M2322 CAP EC -40~105℃ 22UF/16V ±20%(M) ∮5*H5MM P=2.0MM (DIP) C4022296M2122 CAP EC -40℃~105℃ 2.2uF/25V ±20%(M) ψ4*H5mm P=2.0mm (DIP) C4024704M2422 CAP EC -40∘~105℃ 47UF/16V ±20% (M) ∮5*H7MM P=2.0MM (DIP) C4026813M5341 CAP EC -40~105°c 680uF 10V ±20%(M) Φ8*H11.5mm P=3.5mm LEAD FREE (DIP)
  • Page 69: Exploded Diagram And Exploded Parts List

    8. Exploded Diagram and Exploded Parts List ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 70 EXPLODED PARTS LIST (VA930m-1) ViewSonic Model Number: VS11369 Rev: 1a Serial No. Prefix: QEW Item ViewSonic P/N Ref. P/N Description Q'ty P791P500LM060-A LENS PMMA LM/MR19V-AAAD P761A998LM010-B POWER BUTTON ABS HB SILVER LM/MR19V-AAAD REV:0 P763A99BLM130-B FUNCTION BUTTON ABS HB SILVER LM/MR19V-AAAD REV.0...
  • Page 71 ViewSonic Model Number: VS11369 Rev: 1a Item ViewSonic P/N Ref. P/N Location Q'ty P-00008057 F40071619VA01 CARTON K4K (C)LM/MR19V- AAAD L486*W278*H590mm for viewsonic VG930m P-00008056 F2014319VA001 POLYETHYLENE -R EPS LM/MR19V-AAAD L155*W270*H565mm P-00008055 F2013319VA001 POLYETHYLENE -L EPSLM/MR19V-AAADL155*W270*H565mm A-00008026 W402091809531 AC POWER CORD US RVV300/500V 3G S0.75mm2 L180cm BLACK...
  • Page 72: Block Diagram

    9. Block Diagram Backlight LVDS Transmitter ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 73: Schematic Diagrams

    100nF R126 1K VBRI MCU_VCC KST3904 DGND LED2 5DVCC 2N3906 LED-2 2N3906 4.7K LED1 R15 NC BKLT-EN LED-1 ViewSonic Corporation R127 1K INVON 100nF 47uF_16V/NC 10K/NC KST3904 Model DGND Title Date Rev: ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 74 MENU MUTE EXIT DOWN DOWN EXIT MUTE MENU DGND POWER LED-2 HEADER 13/SM HEADER 13/SM LED-1 HEADER 13/SM LED1 ViewSonic Corporation Model Title Date Rev: ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 75 CA16 FBA5 BED/6 NC/0.1uF PHONEJACK 5P APA2065 CA10 FBA4 NC/180PF NC/180PF BED/6 NC/1R2 CNA3 AGND AGND AGND AGND AGND FBA10 BED/6 2PIN 2.0mm180" CA12 2.2uF_16V AGND ViewSonic Corporation Model Title Date Rev: ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 76 R148 100 DDC1_SDA HDA1/TX/P3.1 P6.0/AD0 R149 100 DDC1_SCL HCL1/RX/P3.0 MTV512 24MHz 472_4 R150 R151 R152 6.8K 472_4 MCU_VCC C125 C126 10pF 10pF 5DVCC MCU_VCC Closed to MCU ViewSonic Corporation Model Title Date Rev: ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 77 ADC_VDD BG2P / TXE3+ AHS0 RTD_SCLK AHS0 AHS1 / V0 AVS0 AVS0 NC/1K AVS1 / VCLK R3.3DVCC R1.8DVCC 2N3906 DDC1_SCL DDCSCL1 DDC1_SDA DDCSDA1 2N3906 100nF 100uF_16V ViewSonic Corporation Model Title Date Rev: ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
  • Page 78: Pcb Layout Diagrams

    11. PCB Layout Diagrams ViewSonic Corporation VG930m-3_VA930m-1 Confidential - Do Not Copy...
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  • Page 86: Adjustment Procedure

    Company: 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 VG930m-3_VA930m-1 Confidential - Do Not Copy...

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