ViewSonic VS11422 Service Manual
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ViewSonic VS11422 Service Manual

ViewSonic VS11422 Service Manual

22” color tft lcd display
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Service Manual

ViewSonic VG2230wm-1
Model No. VS11422
22" Color TFT LCD Display
(VG2230wm-1_SM Rev. 1a Oct. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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  • Page 1: Service Manual

    Service Manual ViewSonic VG2230wm-1 Model No. VS11422 22” Color TFT LCD Display (VG2230wm-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 VG2230wm-1 Confidential - Do Not Copy...

  • Page 4: Precautions And Safety Notices

    (11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist or bend the TFT Module even momentarily. When designing the enclosure, it should be taken into consideration that no ViewSonic Corporation VG2230wm-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 ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 6 Take out the monitor by grasping the LCD panel. That may cause “ MURA“. Place the monitor on a clean & soft foam Place the monitor on foreign objects . pad . That could scratch the surface of panel ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...

  • Page 7: Specification

    1280 x 960 @ 50, 60, 75Hz 1280 x 1024 @ 50, 60, 75Hz AUDIO Speaker 2.5Wx2 Video Analog DB-15 CONNECTORS Digital DVI-D Power Internal Power Adapter, 3-pin plug (CEE22) POWER Voltage AC 100-240V (Universal); 50/60 Hz ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...

  • Page 8: Viewsonic Corporation

    (W x H x D) Stand 20.4" (W) x 17.2" (H) x 9.8" (D) DIMENSIONS Wall 519 mm (W) x 392 mm (H) x 60 mm (D) Mount 20.4" (W) x 15.4" (H) x 2.4" (D) ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 9 Package Video Cable Contents Audio Cable Quick Start Guide ViewSonic Wizard CD-ROM Carton -- One piece construction with double wall, 1.0 Kg Plastic Handle -- PE-LD, 13.2g Poly Foam -- EPS, 180g, 2 pices EU Packaging Accessory Plastic Bags -- PE-LD, 2g...

  • Page 10: General Specification

    3.5mA (Max) at 254VAC / 60Hz Efficiency (at 115VAC Full Load) Typical: 80% Minimum: 75% Fuse Internal and not user replaceable Power Output 38 Watts (typ) Ripple: <3% Ripple and Noise Noise: <1% ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 11 On Mode = N/A, Active Off < 3 sec 2.5 ELECTRICAL REQUIREMENT Horizontal / Vertical Frequency 24 – 82 kHz Horizontal Frequency 50 – 85 Hz Vertical Refresh Rate Maximum Pixel Clock 165 MHz Sync Polarity Independent of sync polarity ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 12 1280 x 768 @ 60 Hz, 47.4 KHz 1280 x 768 @ 60 Hz, 47.8 KHz 1280 x 768 @ 75 Hz, 60.3 KHz 1280 x 768 @ 85 Hz, 68.6 KHz ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 13 ● 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 VG2230wm-1 Confidential - Do Not Copy...

  • Page 14: Front Panel Controls And Indicators

    OSD by pressing any of the buttons "1", "▼", "▲", "2" a message will appear on the screen for 3 seconds showing "OSD Locked". The OSD lock will be deactivated by pressing the front panel control buttons "(1), & (▲)" again ViewSonic Corporation VG2230wm-1...
  • Page 15 (Should not reset by power off, power unplug and others) OSD Auto Save 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 ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 16 Cable type / length 3.5mm stereo cable / 1.8m length Audio DPMS Speakers should be off when the rest of the monitor is in power saving. * No any sympathetic or abnormal noise allowed. ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...

  • Page 17: 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 18 • 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 VG2230wm-1 Confidential - Do Not Copy...

  • Page 19: 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 20 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 21 Resolution Notice allows the user to enable or disable this notice. If you enable the Resolution Notice shown above and your computer is set at a resolution other than 1680 x 1050, the following screen appears. ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 22 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 VG2230wm-1 Confidential - Do Not Copy...

  • Page 23: Circuit Description

    Time: 15:53:11 Date: Tue Jul 11, 2006 ______________________________________________________________________ ______________________________________________________________________ VIEWSONIC CORPORATION EDID Version # 1, Revision # 3 DDCTest For: ViewSonic VG2230wm ______________________________________________________________________ ______________________________________________________________________ EDID Block 0, Bytes 0-127 128 BYTES OF EDID CODE: ________________________________________ 0 | 00 FF FF FF FF FF FF 00 5A 63...
  • Page 24 1024 X 768 @ 70Hz (VESA) 1024 X 768 @ 75Hz (VESA) 1280 X 1024 @ 75Hz (VESA) (37) Manufacturer's Reserved Timing: 1152 X 870 @ 75Hz (Apple,Mac II) (38-53) Standard Timing Identification: ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 25 Monitor Serial Number: QC9060100001 ______________________________________________________________________ (90-107) Detailed Timing / Descriptor Block 3: Monitor Range Limits: Min Vertical Freq - 50 Hz Max Vertical Freq - 75 Hz Min Horiz. Freq - 30 KHz ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 26 Max Horiz. Freq - 82 KHz Pixel Clock - 170 MHz Secondary GTF - Not Supported ______________________________________________________________________ (108-125) Detailed Timing / Descriptor Block 4: Monitor Name: VG2230wm (126) No Extension EDID Block(s) (127) CheckSum OK ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 27 Time: 15:53:51 Date: Tue Jul 11, 2006 ______________________________________________________________________ ______________________________________________________________________ VIEWSONIC CORPORATION EDID Version # 1, Revision # 3 DDCTest For: ViewSonic VG2230wm ______________________________________________________________________ ______________________________________________________________________ EDID Block 0, Bytes 0-127 128 BYTES OF EDID CODE: ________________________________________ 0 | 00 FF FF FF FF FF FF 00 5A 63...
  • Page 28 1680x1050 Pixel Clock: 146.25 MHz ______________________________________________________________________ Horizontal Image Size: 474 mm Vertical Image Size: 296 mm Refreshed Mode: Non-Interlaced Normal Display - No Stereo Horizontal: Active Time: 1680 pixels Blanking Time: 560 pixels ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 29 Max Horiz. Freq - 82 KHz Pixel Clock - 170 MHz Secondary GTF - Not Supported ______________________________________________________________________ (108-125) Detailed Timing / Descriptor Block 4: Monitor Name: VG2230wm (126) No Extension EDID Block(s) (127) CheckSum OK ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...

  • Page 30: Adjustment Procedure

    Test Pattern: Checkered Pattern Every One Pixel (50%Green & 50%Blue) Inspection Item: Flicker, Mura 6. Window BG Test Signal: 1280*1024@60Hz Test Pattern: Window standard pattern Inspection Item: Line Defect, Function Defect & Mura ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 31 Inspection Item: Particle, Line Defect, Power, Image Remain & Mura 10. Black Box Test Signal: 1280*1024@60Hz Test Pattern: Window standard pattern Inspection Item: Bright Dot, Line Defect & Power 11. RED Test Signal: 1280*1024@60Hz Test Pattern: ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 32 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 33 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 34 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 Fig 2 ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 35 2.3 Press “Next＂ button to continue., see Fig 2.3 Fig 2.3 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 ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 36 2.5 Press “Install＂ button to continue, see Fig 2.5 Fig 2.5 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 37 Fig 3.2 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 ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 38 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 39 ISP, it needs Fig 3.6 shows the setting for security code of Command No, and key in command sequentially 94, 94, AC, CA, Fig 3.6 ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 40 Command No, and key in command sequentially 7C, 4C, 77. The Command No and command must be set by user while coding. About the detail of setting, please refer to Section 6 Boot code of ISP. Fig 3.7 ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 41 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 42 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 43 5.2 If user uses hardware ISP to read MCU content, it shows as Fig 5.2. Fig 5.2 ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 44 6 Re-entry the ISP Mode MCU＇ button and enter ISP mode again, you refer the message as below: When you could not select or click ｀Reset ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 45 (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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 46 (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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 47 7.4 The followings show the relationship between the code and the security code ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 48 8. ISP Adaptor Schematic 9. Adaptor Linking ISP Adaptor Connect with The Monitor Set Printer Cable PC/HOST 25Pins to 25Pins Connect with VGA Cable ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 49 1.3 Put the cushion into the carton then place the monitor on the cushion. (Figure 3) 1.4 Put the cushion then place all the accessories into the carton. As last, close the carton and seal it with tape. (Figure 4) Figure 3 Figure 4 ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 50 2 Separate Rear Cover (Rear Case Assy) Separate Bezel hooks to take Bezel and Rear Cover apart. Step 1 : Loose and remove 3 screws. Step 2 : Separate Bezel hooks to take Bezel and Rear Cover apart. ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 51 Step 2 : Lift up LCD module and remove bezel. Step 3 : Remove 4 pieces of Backlight wires. (Attention red cable & blue cable) Step 4 : Loose and remove 4 screws. ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 52 Remove the PCBA Cover 3.2 Remove Power Board and AD Board Step 1 : Loose and remove 4 screws. Step 2 : Remove Lips Board Step 3 : Remove 2 pieces of FFCs. ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 53 Step 4 : Remove the FFC. Step 5 : Loose and remove 4 screws. Step 6 : Remove AD PCBA. Step7 : Completed. ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 54 And fasten 4 fixed screws. Step 2 : Fasten 4 fixed screws. Step 3 : Insert FFC. Step 4 : Insert 2 pieces of FFCs . Step 5 : Insert new Lips Board. ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 55 5. Remove OSD Board Step 1 : Separate both Audio Cable. Step 2 : Take OSD Board apart. Step 3: Completed. 6.Change New OSD Board Step 1 : Place New OSD Board. ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 56 7. Add Cover to AD PCB Heatsink Step 1 : Join the PCB Cover. Step 2 : Fasten 4 fixed screws. Step 3 : Fasten 2 fixed screws Step 4 : Fasten 4 fixed screws. ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 57 Join LCD module and remove bezel. Step 7 : Insert FFC. Step 8 : Completed. 8. Rear Assy & Stand Assembly Step 1 : Place Rear Cover. Step 2 : Fasten 3 fixed screws. ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 58 Step 3 : Place the Stand Assy. Step 4 : Fasten 4 fixed screws. Step 5 : Completed. ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...

  • Page 59: Troubleshooting Flow Chart

    Display Bright Dot 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 60 Check Panel Beat Display Shut Down AD/B Change Display Wave Check PCBA Power/B Change CNT/B Change Check Panel Panel Change No Backlight Check Adapter Adapter Change TEST Next Step Completed ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy P/B Change...
  • Page 61 Adapter Change No signal AD/B Change Check PCBA CNT/B Change R.G.B Display Abnormal VGA cable Change Check Wire DVI cable Change Gray Scale Display Panel Change Check Panel Abnormal TEST Next Step Completed ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 62 Vertical Check Panel Panel Change Band Defect Horizontal Band Defect Power Saving Display AD/B Change Check PCBA Abnormal AD/B Change Power/B Change Peculiar Smell Check PCBA Inverter/B Change TEST Next Step Completed ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 63 LED Off Check PCBA Abnormal Inverter/B Change LED Dark OSD/B Change LED Abnormal OSD Cable Change Check Wire LED Loss DC Power CNT Cable Change LED Flicker Adapter Change TEST Next Step Completed ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 64 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 65 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 Completed ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...

  • Page 66: No Signal Input

    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 VG2230wm-1 Confidential - Do Not Copy...

  • Page 67: 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 68 BOM LIST ( VG2230wm-1 ) ViewSonic Model Number: VS11422 Rev: 1a Serial No. Prefix: QC9 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty ACF,COG,AC-8405Z-23 1.5mmX100M,100000 mmx1.5 mm,Hitachi Chemical,COG- 73-C000047 0.0028 ACF,Green I Driver IC,COG,Scan,M170E5-L09,HX8653- 36-D006411 A000PD400,240/263/256Channel,Himax,(HX8633 shrank version),Green II L4M003XXXX 22"wide_TN, Photo Spacer ,Corning 0.7mm Glass , Resin/BM(Panel Base)
  • Page 69 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty Carton,A220Z1-H07,515 mmx293 mmx565 mm,Chen Yi Paper Yuen Foong Yu P-00008135 78-D013323 Suzhou Chen Yi Ningbo,VSC_VG2230wm,Green II Software (EDID_D-SUB),A220Z1,VSCA21EA00,VSC,Checksum(76),VG2230wm, 10-D013196 Analog Port,Green II Software (EDID_DVI),A220Z1,VSCA21ED00,VSC,Checksum(CB),VG2230wm, 10-D013195 Digital Port,Green II Software (BIOS),A220Z1,22Z1LR6000,ViewSonic,Checksum(Bank1:0x85,...

  • Page 70: Exploded Diagram And Exploded Parts List

    8. Exploded Diagram and Exploded Parts List ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 71 EXPLODED PARTS LIST ( VG2230wm-1 ) ViewSonic Model Number: VS11422 Rev: 1a Item ViewSonic P/N Ref. P/N Description Q'ty PM0ZFH0R00 ISM,A220Z1-H07 C-00008138 40-D013268 Bezel Assy,A220Z1-H07 CB-00005676 32-D007464 FCC,15 Pins,A220Z1-H07,ISM-Powerkey CB-00008042 32-D013272 FCC,6 Pins,A220Z1-H07,OSD-Powerkey 32-D013204 PCBA for ,A201P1-P01-H-K1 B-00005704 35-D007990 PCBA for ,A201P1-P01-H-K2...
  • Page 72 ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 73 PACKING PARTS LIST ( VG2230wm-1 ) ViewSonic Model Number: VS11422 Rev: 1a Item ViewSonic P/N Ref. P/N Description Q'ty VG2230wm LCD Monitior P-00008033 78-D009624 PE Foam Bag P-00008135 78-D013323 Carton P-00008134 78-D013275 EPS Foam (Bottom) P-00008133 78-D013271 EPS Foam(Top) A-00005071...

  • Page 74: 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 75 YOUT YOUT V33S RESET_MCU RESET_MCU RESET_MCU DDC_DAT DDC_DAT DDC_DAT DDC_CLK DDC_CLK DDC_CLK BUS_POEWR 02_DVI BUS_POEWR 01_VGA DDC2_SCL DDC2_SCL DDC2_SDA DDC2_SDA V18_ESD V33S CONNECT VGA_5V ViewSonic Corporation Model Block Diagram Title Date Rev: ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 76 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 77 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 GND_POWER ViewSonic Corporation Model Title Date Rev: ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 78 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 VG2230wm-1 Confidential - Do Not Copy...
  • Page 79 TCON12 B_B1N B_B0N FR2P B_B1P B_B0P TCON3 FR2N B_B2N B_B1N FR1P B_B1P FR1N B_B2P PWM:230~300Hz(PWM1) INV_ADJ B_B2N FR0P B_B2P FR0N PWM:47KHz(PWM2) VCM_PWM BJT_B BJT_B V18C ViewSonic Corporation Model SCALER Title Date Rev: ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...
  • Page 80 LED_GRN FG1N FG1P FG1P FG2N FG2N FG2P FG2P FB0N FB0N FB0P FB0P LED_G FB1N FB1N LED_O FB1P FB1P FB2N ViewSonic Corporation FB2N FB2P FB2P FSTHI FSTHI FSTHI Model Title GND_POWER Date Rev: ViewSonic Corporation VG2230wm-1 Confidential - Do Not Copy...

  • Page 89: Schematic Diagrams

    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 VG2230wm-1 Confidential - Do Not Copy...

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