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ViewSonic VS11349 Service Manual

22” color tft lcd display
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Service Manual

ViewSonic VX2235wm-1
Model No. VS11349
22" Color TFT LCD Display
(VX2235wm-1_SM Rev. 1a 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 VX2235wm-1 Model No. VS11349 22” Color TFT LCD Display (VX2235wm-1_SM Rev. 1a Aug. 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 VX2235wm-1 Confidential - Do Not Copy...

  • Page 4: Precautions And Safety Notices

    (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 VX2235wm-1 Confidential - Do Not Copy...
  • Page 5 Take out the monitor by grasping the LCD panel. That may cause “ MURA“. Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects . That could scratch the surface of panel ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...

  • Page 6: Specification

    20 % - 85 % Global: CB, MPR II,WEEE,ROHS VSA:UL, cUL, FCC-B, TUV-S, NOM, Energy Star Regulation VSE:TUV/ERGO(covers ISO13406-2&MPR II),CE, GOST-R+Hygienic ,SASO , ENERGY VSI: BSMI, CCC, PSB, C-TICK, MIC, Green Mark VSCN:CCC ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 7 1024 , 1400 x 1050 , 1440 x 900 , 1600 x 1200, 1680 x 1050 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 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 8 Saving Mode < 2 W@230VAC 50HZ Power Consumption Off Mode < 1 W @230VAC 50Hz (DC Power Off; Meet to Energy Star Ver4.0 Tier2) Recovery Time On Mode = N/A, Active Off < 3 sec ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 9 640x480@60Hz by [1]+[2] short cut key (primary = 640x480@60Hz) KHz 　 　 　 　 640 x 480 @ 67 Hz, @ 72 Hz, 37.9 KHz 　 　 　 　 640 x 480 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 10 　 　 1280 x 768 1280x768@75Hz by [1]+[2] short cut key (primary = 1024x768@75Hz) @ 85 Hz, 68.6 KHz 　 　 　 　 For Analog sync, Switch 1024x768@85Hz and 1280 x 768 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 11 ● 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”) ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 12 Standard ->Text -> Cinema -> Game -> Portrait -> Scenery -> Vivid [2] + [▲] Skin tone switch Nature -> Reddish -> yellowish [▼] +[▲] + [ ] Factory Mode Remark : All the short cuts function are only available while OSD off ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 13 Volume* , Mute* Color Adjust SRGB, 9300K,7500K, 6500K(default), 5400,User Color [R, G, B] Information [H Frequency, V Frequency, Resolution, Pixel Clock, Serial Number, Model Number, [“www.ViewSonic.com” ] Manual Image Adjust Horizontal Size* , H/V. Position* , Fine Tune* , Sharpness*...
  • Page 14 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 Input Priority This function is defined the auto detect priority when the display has several inputs. Please refer to the detail flow chart as the appendix D ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 15 SPEAKERS STAY ON WHEN THE REST OF THE MONITOR IS IN POWER SAVING NOTE: THERE IS NO GUARANTEE <1 W AT POWER Audio DPMS CONSUMPTION IN ACTIVE OFF MODE, WHEN THE AUDIO CABLE IS CONNECTED ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...

  • Page 16: Front Panel Function Control Description

    Displays the Main Also a shortcut to display Menu or exits the the Contrast adjustment control screen and control screen ( ) / saves adjustments. OptiColor ( ) ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 17 • 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 VX2235wm-1 Confidential - Do Not Copy...

  • Page 18: Main Menu Controls

    Enabling this setting allows the LCD display to more accurately display colors the way they were originally intended. Enabling the sRGB setting will cause the Contrast and Brightness adjustments to be disabled. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 19 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 20 Scenery optimized for displaying outdoor scenery images. Vivid optimized for color luster and sharpness. These 7 presets are carefully chosen by Viewsonic, but may not suit all users' tastes. In that case, the user can either return to the Standard setting and manually adjust the brightness and contrast as desired.
  • Page 21 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 VX2235wm-1 Confidential - Do Not Copy...

  • Page 22: Circuit Description

    TSMC 0.18um e-FLASH process. Here we use the package of PLCC44/LQFP48 if we would like to have a discrete MCU controller or we make a multi-chip package with our LCD monitor controller to form one chip package to save the cost of package and PCB material. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...

  • Page 23: Adjustment Procedure

    Full Screen 50% White (Gray) Inspection Item: Bright Dot, Particle, Line Defect & Mura 9. White Box Test Signal: 1280*1024@60Hz Test Pattern: Window standard pattern Inspection Item: Particle, Line Defect, Power, Image Remain & Mura ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 24 Full Screen 50% Red Figure 4 Green Full Screen 50% Green Figure 5 Blue Full Screen 50% Blue Figure6 White Full Screen White Figure7 Black_Tile Black Tile Under White Background Figure 8 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 25 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 26 If the O.S. was Win2000 or Win XP please have to install PORT95NT.exe Fig1 In order to ensure can execute ISP program, please set BIOS in PC or Notebook as Fig 2 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 27 Fig 2 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 28 2.2 After extracting the zip file, the total files list as Fig 2.2, and double click the file of setup.exe to install. Fig 2.2 2.3 Press “Next＂ button to continue., see Fig 2.3 Fig 2.3 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 29 2.4 Keep default setting or press “Change＂ button for selecting the path that you want , and then press“Next＂button to continue, see Fig 2.4. Fig 2 4 2.5 Press “Install＂ button to continue, see Fig 2.5 Fig 2.5 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 30 2.6 The Installer Information shows package warning, press “Ignore＂ button to continue, see Fig 2.6. Fig 2.6 2.7 Installation has finished, press “Finish＂ button, see Fig 2.7. Fig 2.7 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 31 3.1 After installation, we could find the shortcut in the setting path or the program bar (default setting), see Fig 3.1 Fig 3.1 2.2 Security file is a key to use ISP function, press “確定＂ button, see Fig 3.2. Fig 3.2 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 32 3.3 The warning is used to remind user of that different CPU rate may cause ISP function fail(it is limited by IIC protocol), press “確定＂ button, see Fig 3.3. Fig 3.3 2.4 Press“Create Security File＂ button to key in code. Adjusting bar to decrease bus, see Fig 3.4. security speed of IIC Fig 3.4 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 33 Command No of security code, see Fig 3.5, and different security code between hardware ISP and software ISP. The security code of software ISP is set by user while coding, but the security code of hardware ISP is set by Myson Century. Fig 3.5 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 34 Fig 3.6 shows the setting for security code of ISP, it needs Command No, and key in command sequentially hardware 94, 94, AC, CA, Fig 3.6 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 35 77. The Command No and command must be set by user while coding. About the detail of setting, please refer to 7C, 4C, Section 6 Boot code of ISP. Fig 3.7 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 36 4.3 CRC (cyclic redundancy check): the host can check CRC register＇s result instead of reading every byte in flash. The message of Check MCU CRC OK means that the Host verify ok for the progress of program. Fig 4.1 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 37 5.1 Only software ISP could read the MCU content, it is according to program the boot code while coding. The limitation is used for the security of customer＇s code. Select “Read Target＂ item, and press“RUN＂ button, the MCU content will show as Fig 5.1. Fig 5.1 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 38 5.2 If user uses hardware ISP to read MCU content, it shows as Fig 5.2. Fig 5.2 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 39 6 Re-entry the ISP Mode When you could not select or click MCU＇ button and enter ISP mode again, you refer the message as below: ｀Reset ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 40 (1)Disable the ｀Enter ISP Mode＇ option to avoid the error message display. (2)If you using the MTV312M64 or before MCU serials, the MCU will always in ｀ISP Mode＇even programming fail or erase MCU that instead of select or press ｀Reset MCU＇. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 41 (a) Clear watchdog to prevent reset during ISP period (b) Disable all interrupt to prevent CPU wake-up (c) Write ISP slave address (d) Write 93h to ISP enable address to enable ISP (e) Enter 8051 idle mode ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 42 7.4 The followings show the relationship between the code and the security code ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 43 8. ISP Adaptor Schematic 9. Adaptor Linking ISP Adaptor Connect with The Monitor Set PC/HOST Printer Cable 25Pins to 25Pins Connect with VGA Cable ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 44 1.4 Put the cushion then place the seat assy and all the accessories into the carton. As last, close the carton and seal it with tape. (Figure 4) Figure 3 Figure 4 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 45 Step 1 : Remove the Seat Assy Step 2 : Remove the Stand Cover. Step 3 : Loose and remove 4 screws Step4 : Remove the Stand Assy Step 5 : Completed. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 46 Separate Bezel hooks to take Bezel and Rear Cover apart. Step 1 : Loose and remove 2 screws. Step 2 : Separate Bezel hooks to take Bezel and Rear Cover apart. Step 3 : Remove Rear Cover. Step 4 : Completed. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 47 Loose and remove 4 screws. Step 3 : Lift up LCD module and remove bezel. Step 4 : Remove 2 pieces of Backlight wires. Step 5 : Remove 2 pieces of Backlight wires. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 48 Step 6 : Loose and remove 2 screws. Step 7 : Loose and remove 2 screws. Step 8 : Loose and remove 4 screws. Step 9 : Remove the PCBA Cover ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 49 Loose and remove 4 screws. Step 2 : Remove Lips Board Step 3 : Remove 2 pieces of FFCs. Step 4 : Remove the FFC. Step 5 : Loose and remove 4 screws. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 50 Step 1 : Place new AD Board. And fasten 4 fixed screws. Step 2 : Fasten 4 fixed screws. Step 3 : Insert FFC. Step 4 : Insert 2 pieces of FFCs . ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 51 Step 5 : Insert new Lips Board. Step 6 : Fasten 4 fixed screws. Step 7 :Completed. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 52 5. Remove OSD Board Step 1 : Separate both Audio Cable. Step 2 : Take OSD Board apart. Step 3: Completed. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 53 Insert Audio cable to connectors of New OSD Board. Step 3: Completed. 7. Add Cover to AD PCB Heatsink Step 1 : Join the PCB Cover. Step 2 : Fasten 4 fixed screws. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 54 Step 4 : Fasten 2 fixed screws. Step 5 : Insert 2 pieces of Backlight wires. Step 6 : Insert 2 pieces of Backlight. wires. Step 7 : Join LCD module and remove bezel. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 55 Insert FFC. Step 10 : Completed. 8. Rear Assy & Stand Assembly Step 1 : Place Rear Cover. Step 2 : Fasten 2 fixed screws. Step 3 : Place the Stand Assy. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 56 Step 4 : Fasten 4 fixed screws. Step 5 : Join the Stand Cover. Step 6 : Join the Seat Assy Step 7 : Completed. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...

  • Page 57: Troubleshooting Flow Chart

    Bright Dot Display Dark Dot Backlight Light Leakage Mura Panel Change Check Panel Image Sticking Brightness spot Particle Dot Defect Image Remain Group Bright Dots Others Cosmetics Defect TEST Next Step Completed ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 58 Check Panel Panel Change Beat Display Shut Down AD/B Change Display Wave Check PCBA Power/B Change CNT/B Change Panel Change Check Panel No Backlight Check Adapter Adapter Change TEST Next Step Completed ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 59 Check Adapter Adapter Change No signal AD/B Change Check PCBA CNT/B Change R.G.B Display Abnormal VGA cable Check Wire Gray Scale DVI cable Display Check Panel Panel Change Abnormal TEST Next Step Completed ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 60 Vertical Check Panel Panel Change Band Defect Horizontal Band Defect Power Saving Display Check PCBA AD/B Change Abnormal AD/B Change Power/B Change Peculiar Smell Check PCBA Inverter/B Change TEST Next Step Complete ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 61 Power/B Change LED Off Check PCBA Abnormal Inverter/B LED Dark OSD/B Change LED Abnormal OSD Cable Check Wire LED Loss DC Power CNT Cable Change LED Flicker Adapter Change TEST Next Step Completed ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 62 CNT/B Change Abnormal Power/B Change Loud Check PCBA Inverter/B Change Abnormal OSD/B Change Check Wire No Voice OSD Cable Change Loudspeaker L/R Same Check Loudspeaker Change Volume Loudspeaker Next Step TEST Noise Completed ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 63 AD/B Change Display Abnormal EDID Update Check EDID Code Check PCBA TV /B Change TV Function Check Wire Display AV Cable Change Abnormal Remote controller Check Controller Change TEST Next Step Complete ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 64 Use OSD Color Menu to adjust color setting. Dark area distorted Use OSD Color Menu to adjust color setting. White color is not white Use OSD Color Menu to adjust color setting. ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...

  • Page 65: Recommended Spare Parts List

    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. ViewSonic Corporation...
  • Page 66 Dongguan_LIPS, Green II PCBA for , A220Z1-Z01-H, A170E2-E03-H-S6, 1101-02, Rev.04, ITC/USI, ODM, RTD2120S-LF, 35-D010627 Green II B-00008027 Software (EDID_DVI), A220Z1, VSC591ED01, ViewSonic, Checksum(6A), VX2235wm, Digital 10-D011770 Port, Green II Software (EDID_D-SUB), A220Z1, VSC591EA01, ViewSonic, Checksum(15), VX2235wm, Analog 10-D011769 Port, Green II...

  • Page 67: Exploded Diagram And Exploded Parts List

    8. Exploded Diagram and Exploded Parts List ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 68 EXPLODED PARTS LIST (VX2235wm-1) ViewS ViewSonic Model Number: VS11349 Rev: Rev: 1a SerialSerial No. Prefix: QA5 Item ViewSonic P/N Ref. P/N Description Q'ty C-00008040 40-D010960 COVER_HINGE_LEFT_22W15 C-00008039 40-D010946 COVER_HINGE_RIGHT_22W15 40-D010955 REAR_ASSY_22W15 PM0ZFH0R00 22" Wide,Monitor,D-Sub+DVI+Audio 40-D010955 BEZEL_ASSY_22W15 35-D0110238 PCBA_A220Z1-Z01-H-K2 CB-00008015 32-D011077...
  • Page 69 PACKING PART LIST ( VX2235wm-1 ) ViewSonic Model Number: VS11349 Rev: 1a Item ViewSonic P/N Ref. P/N Location Q'ty VX2235wm LCD Monitior P-00008033 78-D009624 PE Foam Bag P-00008036 78-D011103 Carton P-00008035 78-D011075 EPS Foam (Bottom) P-00008034 78-D011076 EPS Foam(Top) C-00008044...

  • Page 70: Block Diagram

    9. Block Diagram Speaker OSD Key Pad / Audio Out 3.3V DVI-D Digital Video Main Board LCD Module D-sub Analog Video Signal DC-12V DC-5V LIPS AC Power Backlight Audio In ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...

  • Page 71: Schematic Diagrams

    YOUT YOUT YOUT V33S RESET_MCU RESET_MCU RESET_MCU DDC_DAT DDC_DAT DDC_DAT DDC_CLK DDC_CLK DDC_CLK 02_DVI BUS_POEWR BUS_POEWR 01_VGA DDC2_SCL DDC2_SCL DDC2_SDA DDC2_SDA V18_ESD V33S CONNECT VGA_5V ViewSonic Corporation Model DIAGRAM Title Date Rev: ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 72 GND_POWER V18_ESD GND_POWER GND_POWER HSYNC VSYNC VSYNC HSYNC DDC_CLK TP10 TP10 DDC_DAT GND_POWER TP11 TP11 GND_POWER GND_POWER GND_POWER GND_POWER GND_POWER DDC_CLK DDC_DAT DDC_CLK DDC_DAT GND_POWER GND_POWER ViewSonic Corporation Model Title Date Rev: ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 73 DATA2+ DAT2+ DATA2- DAT2- DAT3+ DAT3- DAT4+ DAT4- DAT5+ DAT5- CLK+ clk+ CLK- clk- CLK+ RXCP CLK- RXCN RXCP RXCN GND_POWER BUS_POEWR GND_POWER GND_POWER V33S ViewSonic Corporation GND_POWER Model Title Date Rev: ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 74 DA2/P5.2 DA3/P5.3 DA4/P5.4 DA5/P5.5 P5.6/HSCL2 GND_POWER P5.7/HSDA2 HSCL1/RXD/P3.0 VSYNC HSDA1/TXD/P3.1 P6.7 P6.6/CLKO1 P3.2/INT0 P6.5 P3.3/INT1 P6.4 P3.4/T0 P6.3/AD3 P3.5/T1 P6.2/AD2 P7.6/CLKO2 P6.1/AD1 P7.7 P6.0/AD0 NC/MTV512/RoHS NC/MTV512/RoHS ViewSonic Corporation Model Title Date Rev: ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 75 TCON12 B_B1N B_B0N FR2P B_B1P B_B0P TCON3 FR2N B_B2N B_B1N FR1P B_B1P FR1N PWM:230~300Hz(PWM1) B_B2P INV_ADJ B_B2N FR0P B_B2P FR0N PWM:47KHz(PWM2) VCM_PWM ViewSonic Corporation BJT_B BJT_B V18C Model SCALER Title Date Rev: ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 76 LED_GRN FG1N FG1P FG1P FG2N FG2N FG2P FG2P FB0N FB0N FB0P FB0P LED_G FB1N FB1N LED_O FB1P ViewSonic Corporation FB1P FB2N FB2N FB2P FB2P FSTHI FSTHI FSTHI Model GND_POWER Title Date Rev: ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...

  • Page 77: Pcb Layout Diagrams

    11. PCB Layout Diagrams ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 78 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 79 ViewSonic Corporation VX2235wm-1 Confidential - Do Not Copy...
  • Page 80 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 VX2235wm-1 Confidential - Do Not Copy...

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