ViewSonic VS11201 Service Manual
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ViewSonic VS11201 Service Manual

ViewSonic VS11201 Service Manual

19” color tft lcd display
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Service Manual

ViewSonic Q9b-2
Model No. VS11201
19" Color TFT LCD Display
(Q9b-2_SM Rev. 1b Aug. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA – (800) 888-8583

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  • Page 1: Service Manual

    Service Manual ViewSonic Q9b-2 Model No. VS11201 19” Color TFT LCD Display (Q9b-2_SM Rev. 1b Aug. 2006) ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA – (800) 888-8583...
  • Page 2 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 Q9b-2 Confidential - Do Not Copy...

  • 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. ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • 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. ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 6 DO not touch the surfaceof may cause”mura” the POL Take out the monitor with cushions Taking out the monitor by grasping the LCD panel, that May cause”mura” ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 7 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 Q9b-2 Confidential - Do Not Copy...

  • Page 8: Specification

    Shall be compatible with all PC type computers, Video Compatibility Macintosh computers, and after market video cards 640x350, 720x400, 640x480, 800x600, 832x624, Resolution Compatibility 1024x768, 1152x864, 1152x870, 1280x960, 1280x1024 Exclusions Not compatible with interlaced video USB INTERFACE ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 9 On Mode < 36W(Typ) / 40W (max) Power Consumption Active Off < 1 W @ 120 Vac / < 1.5W @ 220Vac Recovery Time On Mode = N/A, Active Off < 3 sec ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 10 ¡´ The monitor needs to do “Auto Adjust” the first time a new mode is detected (see section “0-Touch™ Function Actions”) ¡´ While running Change Mode, Auto Adjust or Memory Recall, the image shall blank ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 11 Volume OSD Button 4 + Button 5 Factory Mode + Button 3 (The Burning mode is build in Factory mode) Remark : All the short cuts function are only available while OSD off ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 12 The OSD shall save new settings when it is turned off by the user or when it times out. There shall not be a separate save Factory Defaults Item Defaults Contrast Brightness Color Setting NATIVE ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 13 Speakers should be off when the rest of Audio DPMS the monitor is in power saving. Under following conditions, there should be no sympathetic heard Sympathetic 1. input <=0.7Vrms 2. Volume OSD <=80 Distance =30cm ¡Ó 5 cm ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 14 Typical = 8 ms 10%-90% @ Ta=25°C Maximun = 12 ms 3.0 mg per lamp Mercury Panel Defects Please see Panel Quality Specifications. *Over 50% units per shipment shall meet the Typical value above. ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 15 ¡´ 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 ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 16 MPR II Front Bezel Color The reference for the Front Bezel is the Black color chip provided by ViewSonic The color difference between any two cabinet components shall be less than 0.80 “Delta E”, in the 1976 CIE L*a*b Colorspace.

  • Page 17: Front Panel Function Control Description

    LED should have enough luminance for clear viewable. Some monitor status area indicated by using this LED, as follows: Power LED Normal On Green Suspend Amber Active Off Out of Range Amber No Input Signal Amber (OSD ON) ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 18 User Adjustment Mode ¡Ð Users can adjust each R or G or B color individually. Native: x=0.313¡Ó 0 .015;y=0.329¡Ó 0 .015 Cool :x=0.283¡Ó 0 .015;y=0.297¡Ó 0 .015 Warm : x=0.346¡Ó 0 .015;y=0.359¡Ó 0 .015 ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 19 | AB- CD| = Tilt on top ¡Ø | EF - GH| = Tilt on bottom ¡Ø 1mm video | BB’-EE’| ¡Ø 1mm (at left side) G’ E’ | DD’-GG’| ¡Ø 1mm (at right side) ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 20 ¡Ù 200 cd / ¢T Native 3.9 Maximum / Minimum Luminance a. Condition Input signal : Full white pattern (Primary mode) Measurement point : Center of LCD screen Color Analyzer : CA-210 Maximum : BRT¡÷Max. CONT¡÷Max. ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 21 : Input signal – Gray scale signal Specification: Following electrical defects shall not be so conspicuous. (ITU-R 4.5 or better in primary mode, and ITU-R 4.0 or better in other modes) (1) Oscillation, noise, beat, shading, etc. ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 22 NOTE 1 Panel Specification (HSD190ME13) Color characteristics R: x=0.6475 y=0.3271 Store in EDID data= G: x=0.2920 y=0.6143 FD 56 A5 53 4A 9D 24 14 4F 54 B: x=0.1416 y=0.0791 W: x=0.3096 y=0.3301 ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...

  • Page 23: Circuit Description

    Supports data swap to fit any panel data alignment for PCB Layout Built in LVDS transmitter Supports spectrum of output clock 4. Hot interface Support serial 2-wire IIC bus Provides 2 channel PMW 5. Power Power supply Less than 1.3W ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 24 Supports data swap to fit any panel data alignment for PCD layout Sync Processor Supports separate, composite and TTL-level sync-on-Green (SOG) sync input Polarity detection for HSYNCI and VSYNCI Fast mode change detection function ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...

  • Page 25: Pin Description

    Pin description ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 26 ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 27 The NT68521 also has a built-in spread spectrum feature to provide low EMI solutions ,SRGB for video color space convert ,post pattern for manufacturing test ,de-interlace feature receives interlace video input and display on TFT panels ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...

  • Page 28: Adjustment Procedure

    At Brightness=50, Contrast=50 Full White Pattern 6500°K: x=0.313±0.015;y=0.329±0.015 9300°K: x=0.283±0.015;y=0.297±0.015 S RGBK : x=0.313±0.015;y=0.329±0.015 Brightness=50¡AContrast=50 Full White ¡Ù 180 CD/M (5). Applicable program exercitation (use the color temperature adjust program to adjust color temperature) ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 29 ( 5-3 ).pls choose” (Set)”à”Communication”, should alter the communication setup,the patter is As follow: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 30 ( 5-4 ). Pls select” Set”à”Range”, ADC setup range, pattern is as follow: LM1901XXND: Gain 0 ~ 255 Offset 0 ~ 255 ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 31 7500K of the program is”SRGB”color temperature ,pattern as follow: advise the adjust tolerance will be ±3 ( 5-6 ). Pls select” Set”à”Color Analyzer” setup color analysis fixture Type,at present we can Use CA-110 and BM-7. Chroma7120,the pattern as follow: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 32 ( 5-7 ). Pls select” Set”à”Video Generator” to set the signal generator’ s Type and Timing/Pattern, refer to the pattern as follow: ( 5-8 ) pls select ”Set”à”Default RGB Gain ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 33 The gray scale should be evidently, on the contrary, when it died down and the pattern will be darker and darker¡C (9).DDC LOAD: pls select corresponding Model’ s DDC document as the loading ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 34 (1).one PC (Windows system),one Print PORT: connect withIIC/RS-232 Adapter Board (2). IIC/RS-232 Adapter Board(Set IIC Port) 2-2. applicable program operate: (1).execute Writer.exe to enter the pattern as follow (2). Then pls press Load Hex document as follow ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 35 2-2. I/P1280x1024 @75Hz 32 Gray pattern (PATTERN48) CHECK the pattern can’ t lack of color or Have too much color¡D 2-3 TIMING CHECK 640x480@60/66/72/75Hz 800x600@56/60/72/75Hz 1024x768@60/70/75Hz 1280x1024@60/75Hz 832x624@75Hz 1152x864@75Hz 1280x960@60Hz 720x400@70Hz ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 36 3 Disassembly Procedure 1.Remove the hinge cover 2.Unscrew 8 pcs screws 3.Unscrew 2 pcs screws ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 37 4. Insert plastic flake to hole ,and pull the flake along the gap between the bezel and housing, to separate the housing from bezel. 5. Pull out the speaker waire from the main board ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 38 Take out housing part; 7 Remove 4pcs screw,take out ; shield cover ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 39 8 . Remove the earth screw,push up the signal cable from the frame, pull up signal cable connecter from the main board ; 9 Pull out the 4pcs lamp wire from power board; ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 40 Unscrew 4pcs screw; 11 Take the power board up from the frame; ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 41 12. Tear off the aluminum foil where cover the FFC cable,push the connert hook forward ,pull out FFC cable from the main board; push the connert hook forward ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 42 2pcs hook forward ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 43 15. Unscrew 2 pcs screws ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 44 Frame 16. Release all hooks around the Panel for remove the bezel; ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 45 17. Remove bezel from the panel; 18. Unscrew 2pcs screw with at the panel side ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 46 1.1 Paste production film to protect the monitor screen.(Figure 1) tape Production film 1.2 Put the monitor in the PE bag and seal bag with type (Figure 2) tape 1.3 Put the cushions on the monitor.(Figure 4) ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 47 1.4 Put the base in the EPE bag. and then,place the base on the cushions ,as figure 1.5 Place the monitor into the carton and then put all accessories into carton .At last, close the carton. Use ‘s Guide Power cord Base Audio cord ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...

  • Page 48: 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 Q9b-2 Confidential - Do Not Copy...
  • Page 49 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 Q9b-2 Confidential - Do Not Copy...
  • Page 50 A. Power Circuit Troubleshooting Start Change AC/ DC Adapter Retry Power Change Main Board & Retry No Trouble Found ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 51 B. Backlight Troubleshooting Start Change Inverter and Retry Change Main Board& Retry Backlight Change Module No Trouble Found ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 52 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 Q9b-2 Confidential - Do Not Copy...
  • Page 53 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 Q9b-2 Confidential - Do Not Copy...
  • Page 54 D. Function Troubleshooting Start Change Control Menu not Control Board Functioning? and Retry? Change Main Board No Trouble Found ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 55 E. 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 Q9b-2 Confidential - Do Not Copy...

  • Page 56: 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 57 ADHESIVE RUBBER CUSHION L90*W16*T3mm P44AL20300001 RUBBER CUSHION(UP) L395*W20*T3.0mm RUBBER C-00005768 P70EAJ26LM010 COVER(HINGE)/ ABSHB BLACK C LM/F199 L125*W31*H27mm P727AF26LM031-C BEZEL ABS PA757 BLACK C printing LM/LM1904 FOR ViewSonic REV:1 PL-00005770 P763A926LM070 FUNCTION-KEY F1704 ABS HB BLACK-C P791P500LM030-A LENS PMMA NATURAL INJECTION LM/LM1704&1904 REV:0 V300800000001 GLUE 50g/BOTTLE 0.01...
  • Page 58 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty R070220J30111 05: RESISTOR.RES CHIP 22Ω ±5%(J) 1/16W 0603 TAPPING (SMD)..R53 R55 R070330J30111 RES CHIP 33Ω ±5%(J) 1/16W 0603 TAPPING(SMD) R070470J10111 RESISTOR.RES CHIP 47Ω ±5%(J) 1/10W.0603 TAPPING (SMD) R16 R22 R25 R070750F30111 05: RESISTOR.CHIP RES 75Ω...
  • Page 59 ADHESIVE RUBBER CUSHION L90*W16*T3mm P44AL20300001 RUBBER CUSHION(UP) L395*W20*T3.0mm RUBBER C-00005768 P70EAJ26LM010 COVER(HINGE)/ ABSHB BLACK C LM/F199 L125*W31*H27mm P727AF26LM031-C BEZEL ABS PA757 BLACK C printing LM/LM1904 FOR ViewSonic REV:1 PL-00005770 P763A926LM070 FUNCTION-KEY F1704 ABS HB BLACK-C P791P500LM030-A LENS PMMA NATURAL INJECTION LM/LM1704&1904 REV:0 V300800000001 0.01...
  • Page 60 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty C4022296M2122 CAP EC -40℃~105℃ 2.2uF/25V ±20%(M) ψ4*H5mm P=2.0mm (DIP) C4024704M2242 CAP EC -40℃ -+105℃ 47uF/16V Φ5*11mm M DIP D00BAV9905G01 DIODE BAV99 SOT-23 GTM (SMD) D1 D2 D3 D00L414803Y11 DIODE LL4148 SOD-123 YING (SMD)

  • Page 61: Exploded Diagram And Exploded Parts List

    8. Exploded Diagram and Exploded Parts List ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 62 EXPLODED PARTS LIST (Q9b-2) ViewSonic Model Number: VS11201 Rev: 1a Serial No. Prefix: Q5W Item ViewSonic P/N Ref. P/N Description Q'ty P727AF26LM030-A BEZEL PL-00005770 P763A926LM070 FUNCTON BUTTON P791P500LM030-A LENS B-00005756 XLMF179050006 KEY BOARD ASSY P44AL16300001 RUBBER CUSHION(BOTTOM) P44A120300001 RUBBER CUSHION(TOP)
  • Page 63 Packing Exploded chart PACKING PART LIST ( Q9b-2 ) ViewSonic Model Number: VS11201 Rev: 1a Item ViewSonic P/N Ref. P/N Location Q'ty P-00005767 F400722190402 CARTON LM/LM1904 L443*W124*H498mm for Vosunis P-00005771 F20133F199001 POLYETHYLENE-L /EPS LM/F199 L470*W110*H150mm P-00005772 F20143F199001 POLYETHYLENE-R/EPS LM/F199 L470*W110*H150mm...

  • Page 64: Block Diagram

    9. Block Diagram MUTE MUTE AMP_STBY AMP_STBY VOLUME VOLUME 3.3V 1.8V PANEL_VCC ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...

  • Page 65: Schematic Diagrams

    ADC_GND BAV99 5.6V 5.6V 2.7k 2.7k DB_R+ R_IN+ B0805/80 DGND 22pF DGND DGND 3.3V R_IN- 0.1u ADC_GND DGND 74LCX14 DGND ViewSonic Corporation 22pF 22pF Model DGND DGND Title VGA IN Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 66 DDC_SCL AT24C16 MCU_VDD DDC_SDA ADJUST+ 12MHz SCLK ADJUST- DGND DGND POWER AUTO/UP MENU/DOWN ADJUST+ ADJUST- DGND DGND LEDA LEDG ViewSonic Corporation HI_BRIGHTNESS 9PIN/2.0mm Model 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u DGND Title DGND Date Rev: ViewSonic Corporation Q9b-2...
  • Page 67 BRSRN[0] BRSRP[0] BRSGN[3] BRSGP[3] BRSGN[2] BRSGP[2] VSYNCI BRSGN[1] HSYNCI BRSGP[1] BRSGN[0] BRSGP[0] TESTP BRSBN[3] BRSBP[3] BRSBN[2] BRSBP[2] BRSBN[1] BRSBP[1] BRSBN[0] BRSBP[0] DGND ViewSonic Corporation ADC_GND PLL_GNDA DGND Model Title NT68521AEF Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 68 T6P/ARSRN2 T5P/ARSRN1 TCLK2M/ARSRP3 TCLK2P/ARSRN3 T6M/ARSRP2 T7M/ARSCLK_P T7P/ARSCLK_N T6M/ARSRP2 T6P/ARSRN2 T6P/ARSRN2 TCLK2M/ARSRP3 PANEL_VCC TCLK2M/ARSRP3 TCLK2P/ARSRN3 TCLK2P/ARSRN3 T7M/ARSCLK_P T7M/ARSCLK_P T7P/ARSCLK_N 15*2PIN/2.0mm T7P/ARSCLK_N PANEL_VCC DGND DGND DGND ViewSonic Corporation Model Title PANEL CONNECTOR Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 69 3PIN/2.0mm 100pF JST 4Pin PH=2.0mm B0805/600 VOLUME CN12 TO SPEAKERS 470u/16V VAROUT_R OUTR PHONEJACK 3.5D AMP_MUTE MUTE AMP_STBY STBY C102 VOLUME 100pF 470u/16V C103 ViewSonic Corporation Model Title AUDIO IN Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 70 100u/16V 0.1u RH3.5X6X1.0W DGND DGND 47uH/1.5A Output 100uF/16V 0.1u 0.1u DGND SS14 0.1u 100uF/16V 470uF/16V DGND DGND DGND DGND DGND DGND DGND DGND DGND PWR_EN ViewSonic Corporation Model Title Power Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 71 Menu/Down Auto/Up POWER Right/+ Left/- TOUCH SWITCH 4P JST 8Pin PH=2.0 H 90 TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P Amber Green LED Dual ViewSonic Corporation Model Title Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...

  • Page 72: Pcb Layout Diagrams

    11. PCB Layout Diagrams ViewSonic Corporation Model Title COMPONENT SIDE Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 73 ViewSonic Corporation Model Title COPPER BOTTOM Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 74 ViewSonic Corporation Model Title DRILL DRAWING Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 75 ViewSonic Corporation Model Title SOLDER MASK TOP Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 76 ViewSonic Corporation Model Title Solder Mask Bottom Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 77 ViewSonic Corporation Model Title PASTE MASK TOP Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...
  • Page 78 ViewSonic Corporation Model Title SILKSCREEN TOP Date Rev: ViewSonic Corporation Q9b-2 Confidential - Do Not Copy...

  • Page 79: Viewsonic Corporation

    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 Q9b-2 Confidential - Do Not Copy...

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