ViewSonic VS10696 Service Manual
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ViewSonic VS10696 Service Manual

ViewSonic VS10696 Service Manual

19” color tft lcd display
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Service Manual

ViewSonic VA912/b-1
Model No. VS10696
19" Color TFT LCD Display
(VA912/b_SM Rev. 1a Apr. 2005)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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  • Page 1: Service Manual

    Service Manual ViewSonic VA912/b-1 Model No. VS10696 19” Color TFT LCD Display (VA912/b_SM Rev. 1a Apr. 2005) 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

    4. Circuit Description 5. Adjustment Procedure 6. Troubleshooting Flow Chart 7. Recommended Spare Parts List 8. Exploded Diagram and Spare Parts List 9. Block Diagram 10. Schematic Diagrams 11. PCB Layout Diagrams Confidential - Do Not Copy ViewSonic Corporation VA912/b...

  • 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. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • 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. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 6 “ MURA “ Do not touch the surface of the polarizer . Take out the monitor with cushion Take out the monitor by grasping the LCD panel. That may cause “ MURA“. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 7 Correct Methods : Incorrect Methods : Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects . That could scratch the surface of panel Confidential - Do Not Copy ViewSonic Corporation VA912/b...

  • Page 8: Specification

    Chapter 2 Product definition and specification Region VSA / VSAP(M) VSE(E) VSCN(G) VSJ(J) Product Name VA912 Model Number VS10696 English, French, German, Italian, Spanish, Finnish, OSD Languages Japanese, Traditional Chinese, Simplified Chinese Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 9 DVI Cable(1.8m, color: black) with PC 2001 Arabic, English, Finnish, Spanish, German, ViewSonic CD Wizard Italian, Japanese, Swedish, Polish, Korean Portuguese, Russian, French, Simplified ViewSonic Quick Start Guide Chinese, Traditional Chinese, Hungary, Czech Screen Protector Mylar Warranty Sticker (Chinese) (Japanese)
  • Page 10 1280 x 960, 1280 x 1024 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 Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 11 Chapter 6 ELECTRICAL REQUIREMENT Horizontal / Vertical Frequency Horizontal Frequency 30 – 82 KHZ Vertical Refresh Rate 50 – 85* HZ. Maximum Pixel Clock 135 MHz Sync Polarity Independent of sync polarity. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 12 1280x 720 @ 60Hz, 45kHz (HDTV) Note 1:When Vertical frequency at 85Hz or resolution, the vertical image size might not be full screen. But the vertical image position should be at the center. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 13 VSA / VSAP(M) VSE(E) VSCN(G) VSJ(J) Product Name VA912/b Model Number VS10696 English, French, German, Italian, Spanish, Finnish, OSD Languages Japanese, Traditional Chinese, Simplified Chinese TFT LCD Panel and Model # Vendor : CMO, Model # : A190E2-xx6 Scalar Model # : Genesis 5126...
  • Page 14 DVI Cable(1.8m, color: black) with PC 2001 Arabic, English, Finnish, Spanish, German, ViewSonic CD Wizard Italian, Japanese, Swedish, Polish, Korean Portuguese, Russian, French, Simplified ViewSonic Quick Start Guide Chinese, Traditional Chinese, Hungary, Czech Screen Protector Mylar Warranty Sticker (Chinese) (Japanese)
  • Page 15 1280 x 960, 1280 x 1024 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 Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 16 Chapter 6 ELECTRICAL REQUIREMENT Horizontal / Vertical Frequency Horizontal Frequency 30 – 82 KHZ Vertical Refresh Rate 50 – 85* HZ. Maximum Pixel Clock 135 MHz Sync Polarity Independent of sync polarity. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 17 Note 1:When Vertical frequency at 85Hz or resolution, the vertical image size might not be full screen. But the vertical image position should be at the center. Note 2: Out of scalar chip (gm5126) limit. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 18 1280 x 960, 1280 x 1024 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 Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 19 Chapter 6 ELECTRICAL REQUIREMENT Horizontal / Vertical Frequency Horizontal Frequency 30 – 82 KHZ Vertical Refresh Rate 50 – 85* HZ. Maximum Pixel Clock 135 MHz Sync Polarity Independent of sync polarity. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 20 Note 1:When Vertical frequency at 85Hz or resolution, the vertical image size might not be full screen. But the vertical image position should be at the center. Note 2: Out of scalar chip (gm5126) limit. Confidential - Do Not Copy ViewSonic Corporation VA912/b...

  • Page 21: Front Panel Function Control Description

    Displays the control screen for the highlighted control. Also toggles between two controls on some screens. Power light Audio Mute button turns Green = ON the sound off Orange = Power Saving Standby Power On/Off Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 22 • 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.) Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 23 2. To adjust selected color, press and . Important: If you select RECALL from the Main Menu when the product is set to a Preset Timing Mode, colors return to the 6500K factory preset. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 24 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 graphic cards user guide for instructions on changing the resolution and refresh rate (vertical frequency).
  • Page 25 OSD Background On/Off allows you to turn the On-Screen Display 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. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 26 3. Turn off [Power on/off] button. 4. Press [▲] + [▼] + [Power on/off] at same time 5. Press [1] Then you will see the BIOS update picture show in the screen as below. Confidential - Do Not Copy ViewSonic Corporation VA912/b...

  • Page 27: Circuit Description

    The AT1741 is 2-channel PWM switching regulator controllers that contains an on-chip 2.5V reference, two error amplifier, an adjustable oscillator, two dead-time comparators, under voltage lockout circuitry and 2 common-emitter output. It is idea for step-up, step-down, and inverting converter. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 28 After the device performs chip erase or block erase operation, it can be reprogrammed on a byte-by-byte basis. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 29 28 bits of CMOS/TTL data with falling edge clock. At a transmit clock frequency of 85MHz, 24 bits of RGB data and 4 bits of LCD timing and control data (HSYNC, VSYNC, CNTL1, CNTL2) are transmitted at a rate of 595 Mbps per LVDS data channel. Confidential - Do Not Copy ViewSonic Corporation VA912/b...

  • 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 Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 31 Window standard pattern 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 Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 32 Inspection Item: Bright Dot, Partial & Line Defect 14. Gray_Scale_0-100_V256 Test Signal: 1280*1024@60Hz Test Pattern: Vertical 64 (256) Gray Scale (Right → Left，From 0 to 100% White) Inspection Item: Line Defect & Function Defect Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 33 Test Pattern: Black block at the center Inspection Item: Cross Talk & Optical Character 17. Black_Tile Test Signal: 1280*1024@60Hz Test Pattern: Black tile under white background Inspection Item: Function Defect & Image Remain Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 34 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 Figure 1 Figure 2 Figure 3 Figure 4 Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 35 Figure 5 Figure 5 Figure 6 Figure 7 Figure 8 Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 36 4. DCC Test Patten: EDID program -Make sure it can pass test program. 5. Window Shut Down Test Signal: 1280*1024@60Hz Test Pattern: 6. BIOS update procedure BIOS Update User Guide For ViewSonic Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 37 ISPACK.EXE: Main program GProbe4.2.0.3.exe b) Ancillary .ISPACK.EXE ：Description program GProbe4.2.0.3_gm5126.exe 1.1. 2.Hardware •RS232 cable（9 Pin） •D_Sub cable（15Pin） •12V Power supply •RS232 to D_Sub transfer BD Monitor Set PC optional RS232 to PC Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 38 1.1.3 Join R232, monitor cable, and adapter. Detail, see the example picture as below. Connect PC Connect to adapter +12v Cable Connect monitor Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 39 This system is applied to Win 95/98/NT/2000. ISP.GProbe 1.3 ISP Execution ISP exe. Main program Gprobe.exe Drive write file. Pre.txt Drive read file. Readme.txt : Ancillary file. 5126bc14.dev Please copy all the files above to the same directory Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 40 1. Open ISP.Gprobe while parameters set up have been completed. ISP.GProbe 2. You will see the picture as below. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 41 3. Execute the main program (Grope). Choose the item for parameter link while program execution 4. Please follow up the parameter set up shown as below ： SERIAL1 COM1 115200 Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 42 5. Select “gm5126AA_AB” Select “ gm5126AA_AB” Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 43 6. Execute Pre.txt：Input BATCH PRE.TXT Input “ BATCH The system can PRE.TXT” execute ISP while the words show up If appear line 3 is OK, Appear line 2 is Error. Please check wiring. Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 44 ※ If failed, Please don’t turn off power. Repeat do it again, from step 6 to step 7. 8. When everything is done. Please turn off the power and restart it again. Check Factory Mode and make sure it already be updated. 17E1HG3004 Confidential - Do Not Copy ViewSonic Corporation VA912/b...

  • Page 45: Troubleshooting Flow Chart

    AD/B Change Check PCB No display P/B Change CNT/B Change Check Panel Panel Change D-sub cable Check Wire change AD/B Change Check PCB Noise Panel Change Check Panel TEST Next Step Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 46 Panel Change Check Panel AD/B Change No signal Check PCB CNT/B Change Check Wire D-sub cable change Power on AD/B Change Check PCB Display Panel Change abnormal Check Panel TEST Next Step Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 47 LED Abnormal OSD cable Change LED Flicker Check Wire Power wire connector Cable change Abnormal AD/B Change Check PCB Keyboard Unavailable P/B Change OSD cable Change Check Wire TEST Next Step Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 48 Display Shut Check PCB Display Down P/B Change CNT/B Change Check Panel Panel Change AD/B Change Check PCB Display flicker (tapping ) CNT/B Change Check Panel P/B Change TEST Next Step Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 49 - 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. Confidential - Do Not Copy ViewSonic Corporation VA912/b...

  • Page 50: Recommended Spare Parts List

    7. Recommended Spare Parts List RECOMMENDED SPARE PARTS LIST (VA912-1) ViewSonic Model Number: VS10696 Rev: 1a Item Description ECR/ECN ViewSonic P/N Ref.P/N Location Universal number# Q'ty Accessories: Adapter, UP06511190-08B, 19 V, 3.42 A, 65 W, Black, A-00000570 271906519H ADAPTOR Potrans, Two BC Power Cord, BSI, H05VV-F, 0.75mm2, 3C, LP-60L+LS-...
  • Page 51 RECOMMENDED SPARE PARTS LIST (VA912-2) ViewSonic Model Number: VS10696 Rev: 1a Item Description ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Q'ty Accessories: Adapter, UP06511190-08B, 19 V, 3.42 A, 65 W, A-00000570 271906519H ADAPTER Black, Potrans, Two BC Power Cord, BSI, H05VV-F, 0.75mm2, 3C, LP-...
  • Page 52 RECOMMENDED SPARE PARTS LIST (VA912b-1) ViewSonic Model Number: VS10696 Rev: 1a Item Description ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Q'ty Accessories: Adapter, UP06511190-08B, 19 V, 3.42 A, 65 A-00000570 271906519H ADAPTER W, Black, Potrans, Two BC Power Cord, BSI, H05VV-F, 0.75mm2, 3C,...
  • Page 53 BOM LIST (VA912-1) ViewSonicModelNumber:VS10696 Rev:1a Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty #N/A MJ0E301K01 19" common BOM,19E3 cell,COF,normal A/C grade #N/A L3J003XXXX LCD Panel , For 19.0" LCM, SXGA Driver #N/A 36X8607401 IC,COG,Scan,HX8607APD400,263Channel,HIMAX #N/A 7344191016 COG_CF,AC-8405Z-23,1.5mm,50M/RL #N/A...
  • Page 54 Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty #N/A 2502532021 CONNECTOR,W-B,A150X2,MOLEX,53261-0290,2Pin CN3,CN2 SW1,SW2,SW3,SW4,SW5, #N/A 2704020004 Switch,Forward,SFKHHMW,4Pin,12V,DC 5mA Software (EDID_D- #N/A 10E1900017 SUB),A190E2,Ver.VSCCF1BA00,ViewSonic,Checksum(E A),Analog Port Software #N/A 10E1900018 (EDID_DVI),A190E2,Ver.VSCCF1BD00,ViewSonic,Chec DIGITAL ksum(9A),DVI Port Software(BIOS),A190E2,Ver.NR19E2TGxx08,CMC,Analo #N/A 10B1900030 g+Audio,Taiwan,CheckSum(0008) #N/A 3241900003 FFC-OSD,A190E2-H01,15Pin,90mm*14mm,Pitch=1.0mm...
  • Page 55 Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty Power Cord,CCC,300/500V,0.75mm2,3C,PC-323+COC- A-00002058 32E1818013 AJ0E2H1C26 01,L=1830+/-50mm,Black,Linetek,18AWG,,No Bag Power Code,CEE,SP-023+IS-14,H05VV- A-00002059 32E1818018 AJ0E2H1E26 F,3G,0.75mm2,CT-12,L=1800+/-50mm,I- SHENG,18AWG,Black,No Bag Power Code,JIS,VCTF,0.75mm2,3C,LP54+LS- A-00002060 32E1818014 AJ0E2H1J26 13J,L=1830+/-50mm,Black,Linetek,18AWG,No Bag Power Cord,BSI,H05VV-F,0.75mm2,3C,LP-60L+LS- A-00002057 32E1818060 AJ0E2H1K26 60,L=1830+/-50mm,Black,18AWG,PSB Mark,Linetek,No Adaptor(AC/DC),65W/19V/3.42A,UP06511190-...
  • Page 56 BOM LIST (VA912-2) ViewSonicModelNumber:VS10696 Rev:1a Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty 19" common BOM,19E3 cell,COF,normal #N/A MJ0E301K01 A/C grade #N/A L3J003XXXX LCD Panel , For 19.0" LCM, SXGA Driver IC,COG,Scan,HX8607APD400,263Channel, #N/A 36X8607401 HIMAX #N/A 7344191016 COG_CF,AC-8405Z-23,1.5mm,50M/RL...
  • Page 57 Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty Chip Resistor,SMD,+-1%,0603,1/16W,357 #N/A 01016F3611 Chip Resistor,SMD,+-1%,0603,1/16W,39K #N/A 01016F3931 RP35,RP34 Chip Resistor,SMD,+-1%,0603,1/16W,412 #N/A 01016F4211 Chip Resistor,SMD,+-1%,0603,1/16W,422 #N/A 01016F4312 Chip Resistor,SMD,+-1%,0603,1/16W,1.05K #N/A 01016F1123 Chip Resistor,SMD,+-1%,0603,1/16W,4.7K #N/A 01016F4721 RP24 Chip Resistor,SMD,+-1%,0603,1/16W,5.6 #N/A 01016F5R61 Chip Resistor,SMD,+-1%,0603,1/16W,5.6K...
  • Page 58 Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty Chip Capacitor,MLCC,X5R,1210,4.7uF,25V,+- #N/A 050K4755D2 CP13,CP19,CP20 10%,RoHS C2,C7~C9,CP8,CP9,CP11,CP1 4,CP16,C18,CP23,CP26,CP28, Chip C41~C44,C48,C53,C56,C58,C6 #N/A 050K015561 Capacitor,MLCC,X7R,0603,100nF,25V,+- 0,C62,C65,C67,C69,C71,C76,C 10%,RoHS 79,C80,C84~C90,C92~C103,C 105~C118,C122,C123,C125,C1 Chip Capacitor,MLCC,X7R,0603,1nF,50V,+- #N/A 050K102762 10%,RoHS Chip CP15,CP21,C25,C26,CP27,C27 #N/A 050K103561 Capacitor,MLCC,X7R,0603,10nF,25V,+- ,C28,C29,C30,C124 10%,RoHS Chip Capacitor MLCC,X7R,0603,+-...
  • Page 59 Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty Switching Diode(Dual),BAV99W,SOT- #N/A 14099W0171 D1,D2 323(SC-70),Philip,RoHS Diode(Zener),BZT52C3V6S,SOD- #N/A 1403V6B511 ZDP2 323,DIODES Diode(Zener),BZT52C5V1S,SOD- #N/A 1405V1B512 ZDP3,ZDP4,ZDP5,ZDP6,ZD12 323,DIODES ZD3,ZD4,ZD8,ZD9,ZD10,ZD1 #N/A 14052C5512 Diode(Zener),BZT52-C5V6S,SOD-323,Panjit #N/A 140BAV7171 Diode(Dual),BAV70W,SOT-323,Panjit #N/A 1500084111 Transistor,P-MOS,SOT-23,BSS84,Diodes Q3,Q5,Q7 Transistor(NPN/PNP,Built-in #N/A 1500200161...
  • Page 60 Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty Olympic,19",ID BOM,D- sub+Audio,USA+Taiwan,Silver Black,For #N/A PJ0EI26200 AJ0E2T2A26 HW-00000557 42A9930017 Screw,3*P1.27*8,5.5*2,Steel Rear Assy,A190E2-H06,ASSY,J91A11B5 C-00002368 40-D000249 Black,Fuking HW-00000556 42A9990005 Screw,M3*P1.27*12,5.5*2,Steel HW-00000555 42A9930014 Screw,M3*P0.5*6,Steel FFC-OSD,A190E2- #N/A 3241900003 H01,15Pin,90mm*14mm,Pitch=1.0mm Stand Seat Assy,A190E2- C-00002369 40-D000242...
  • Page 61 Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty Pallet,A150X1-T01,Wooden,1150 mmx970 #N/A 7841599191 0.029 mmx135 mm #N/A 7841595111 Corner Protector,50*50*1850(mm) 0.118 Label,Pallet Barcode Label,75x40,A190E2- #N/A 7741999141 0.029 H03,VSC Carton Label Label,A190E2-H06,76.2 DC-00002370 77-D000121 mm,76.2 mm #N/A 7841995111 Separator,(AA), 1130x955x11,A190E1-H01 0.029...
  • Page 62 BOM LIST (VA912b-1) ViewSonicModelNumber:VS10696 Rev:1a Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty 19" common BOM,19E3 cell,COF,normal A/C #N/A MJ0E301K01 grade #N/A L3J003XXXX LCD Panel , For 19.0" LCM, SXGA Driver #N/A 36X8607401 IC,COG,Scan,HX8607APD400,263Channel,HIMA #N/A 7344191016 COG_CF,AC-8405Z-23,1.5mm,50M/RL #N/A...
  • Page 63 Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty SCREW,M4,P=0.7 mm,L=15 mm,Special Thin Head,Phillips Cross #N/A 42-D000314 Recess,Screw_with_Washer,SHYE CHING SCREW PCBA For A190E2-T,A190E2-H- B-00000575 35A19K0202 K,Rev.02,Rigid,203-01(ODM) PCB,A190E2-H-K,Rev.02,YANG #N/A 34A19K2301 AN,(A19112607A) LED Lamp(SMD;Orange),19-21UYOC/S530- #N/A 2304112001 A2/TR8,605nm,H=0.8mm,Everlight,RoHS LED Lamp(SMD;Green),19- #N/A 2304114001 21VGC/TR8,571nm,H=0.8mm,Everlight,RoHS...
  • Page 64 Item ViewSonic P/N Ref.P/N Model Description Location Universal number# Q'ty Tape,Security #N/A 7345511002 0.07 Tape,OPP,L900xW50x0.045mm,VSC Cushion,A190E2-H06,PE_LD,White,500 mmx213 P-00002377 78-D000383 mmx50 mm,Hwa Chang,PE_Foam(Right) Cushion,A190E2-H06,PE_LD,White,500 mmx213 P-00002376 78-D000385 mmx50 mm,Hwa Chang,PE_Foam(Left) Inner Box,A170E1-H0G,454 mmx160 mmx43 P-00002070 78-D000337 mm,Yuen Foong Yu,Inner Box Warranty Card,A170E1-H0G,143 mmx210...

  • Page 65: Exploded Diagram And Spare Parts List

    8. Exploded Diagram and Spare Parts List EXPLODED PARTS LIST (VA912/b-1 & VA912-2) ViewSonic Model Number: VS10696 Rev: 1a Item ViewSonic P/N Ref. P/N Description C-00002365 40-D000246 BEZEL ASSY (Silver) C-00002419 40-D000251 BEZEL ASSY (Gray) HW-00000555 42A9930014 SCREW M3 * 6L...
  • Page 66 Monitor Assembly and Disassembly 1. Separate Stand Assy Remove Stand Cover Step 1 : Remove Cover Hinge Step 2 : Loose and Remove 4 screws Step 3: Remove Stand Assy Step 4: Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 67 Separate Bezel hooks to take Bezel and Rear Cover apart. Step 1 : Loose and remove screw. Step 2 : Separate Bezel hooks to take Bezel and Rear Cover apart. Step 3 : Remove Rear Cover Step 4 : Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 68 3. Remove Power Board 3.1 Remove FFC 3.2 Remove Metal Cover Step 1 : Loose and remove 4 screws Step 2 : Loose and remove 3 screws Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 69 Step 3 : Remove the cover hooks of X-PCB Step 4 : Completed 3.3 Remove Power PCBA Step 1 : Loose and remove 3 screws Step 2 : Remove Power PCBA Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 70 Step 3 : Completed 3.4 Change New Power Board Step 1 : Insert New Power PCBA Step 2 : Fasten 3 fixed screws of Power PCBA Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 71 Remove 2 FFC from AD PCBA Step 2 : Complete 4.2 Remove AD PCBA Step 1 : Loose and remove 4 screws Step 2 : Remove AD PCBA Step 3 : Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 72 5. Change New AD PCBA Step 1 : Place New AD PCBA Step 2 : Fasten and fixed 4 screws of AD PCBA Step 3 : Insert 2 FFC Step 4 : Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 73 6. Metal Cover Assembly Step 1 : Join the cover hooks of X-PCB Step 2 : Fasten 3 screws Step 3 : Loose and remove 4 screws Step 4 : Insert FFC Step 5: Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 74 7. Separate Bezel Assy Step 1 : Loose and remove screws Step 2 : Lift up LCD module and remove Bezel Step 3 : Completed 8. Remove OSD PCBA Step 1 : Remove FFC Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 75 Step 2 : Separate both Audio Cable Step 3 : Loose and remove 2 screws Step 4 : Take OSD PCBA apart Step 5 : Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 76 9. Change New OSD PCBA Step 1 : Place New OSD PCBA Step 2 : Fasten 2 screws Step 3 : Insert Audit Cable to connectors of OSD PCBA Step 4 : Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 77 10. Rear Cover Assy Assembly Step 1 : Place Rear Cover Step 2 : Join Rear Cover with Bezel Step 3 : Fasten screw Step 4 : Place Stand Assy Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 78 Step 5 : Fasten 4 screws to fixed Stand Assy Step 6 : Insert Cover Hinge Step 7 : Completed Confidential - Do Not Copy ViewSonic Corporation VA912/b...

  • Page 79: Block Diagram

    9. Block Diagram Block Diagram (Analog only) OSD Key Pad Speaker Audio Out Audio In 3.3V Main Board LCD Module D-sub Signal Analog Video DC/DC DC-19V Inverter DC -19V Backlight Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 80 Block Diagram (Analog + Digital) OSD Key Pad Speaker Audio Out Audio In 3.3V DVI-D Digital Video Main Board LCD Module D-sub Signal Analog Video DC/DC DC-19V Inverter DC -19V Backlight Confidential - Do Not Copy ViewSonic Corporation VA912/b...

  • Page 81: Schematic Diagrams

    GMA4 GMA5 INVERTER I/F DC/DC POWER GMA6 GMA7 GMA8 GMA9 GMA10 Title Title Title Main INVERTER I/F Size Size Size Document Number Document Number Document Number Date: Date: Date: Sheet Sheet Sheet Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 82 RP42 RP43 RP43 QP18 QP18 RP44 RP44 PANEL_ON/OFF Title Title Title DC/DC (High --> Enable) RP45 RP45 Size Size Size Document Number Document Number Document Number Date: Date: Date: Sheet Sheet Sheet Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 83 SHUTDOWN : Nomally Low VOL_MUTE: MCU CONTROL Size Size Size Document Number Document Number Document Number Add new circuit to reduce DC plug out pop noise Date: Date: Date: Sheet Sheet Sheet Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 84 OR0P OR0P OR1N OR1N OR1P OR1P OR2N OR2N OR2P OR2P OSTH OSTH Title Title Title PANEL INTERFACE Size Size Size Document Number Document Number Document Number Date: Date: Date: Sheet Sheet Sheet Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 85 R100 R100 R101 R101 U10A U10A VSCM VSCM_ADJ R102 R102 Title Title Title POWER 27KHz VCM_PWM Size Size Size Document Number Document Number Document Number VCM_PWM Date: Date: Date: Sheet Sheet Sheet Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 86 Default Jumper settings are shown above R147 R147 Solid/White = 10K IN/OUT Title Title Title SCALER C125 C125 C126 C126 Size Size Size Document Number Document Number Document Number Date: Date: Date: Sheet Sheet Sheet Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 87 RX0- RX0+ DATA0+ DATA0/5_SHLD DATA5- DATA5+ CLK_SHLD RXC+ CLK+ CLK- RXC- SHELL2 Title Title Title DVI INPUT Size Size Size Document Number Document Number Document Number Date: Date: Date: Sheet Sheet Sheet Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 88 DDC_SDA V33C V33C V33C G_HSYNC HSYNC HSYNC G_VSYNC VSYNC VSYNC [Schmitt Trigger] Title Title Title D_Sub INPUT Size Size Size Document Number Document Number Document Number Date: Date: Date: Sheet Sheet Sheet Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 89 INV_ADJ INV_ADJ INV_ON/OFF INV_ON/OFF VIN_19V VIN_19V 3273-008-10 3273-008-10 GND_INV Title Title Title INVERTOR INPUT Size Size Size Document Number Document Number Document Number Date: Date: Date: Sheet Sheet Sheet...
  • Page 90 AUDIO/L+ AUDIO/L+ AUDIO/L- AUDIO/L- CP33 CP33 CP34 CP34 LED_GI LED_GI LED_OI LED_OI Title Title Title OSD INTERFACE Size Size Size Document Number Document Number Document Number Date: Date: Date: Sheet Sheet Sheet Confidential - Do Not Copy ViewSonic Corporation VA912/b...

  • Page 91: Pcb Layout Diagrams

    11. PCB Layout Diagrams Confidential - Do Not Copy ViewSonic Corporation VA912/b...
  • Page 92 Add.: Fax: Tel: 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) Confidential - Do Not Copy...

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