ViewSonic VS10715 VA902-3 Service Manual
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ViewSonic VS10715 VA902-3 Service Manual

ViewSonic VS10715 VA902-3 Service Manual

19” color tft lcd display
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Service Manual

ViewSonic VA902-3
VA902b-3
Model No. VS10715
19" Color TFT LCD Display
(VA902-3_VA902b-3_SM Rev. 1a Jun. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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Summary of Contents for ViewSonic VS10715 VA902-3

  • Page 1: Service Manual

    Service Manual ViewSonic VA902-3 VA902b-3 Model No. VS10715 19” Color TFT LCD Display (VA902-3_VA902b-3_SM Rev. 1a Jun. 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 VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 4: Precautions And Safety Notices

    (12) Cold cathode fluorescent lamp in LCD contains a small amount of mercury. Please follow local ordinances or regulations for disposal. (13) Small amount of materials having no flammability grade is used in the LCD module. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 5: Viewsonic Corporation

    Do not touch and that may cause “Mura” the surface of the polarizer. the monitor with cushions Taking out the monitor by grasping the LCD panel. That may cause “Mura” ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 6 Place the monitor on a clean and soft foam pad. Placing the monitor on foreign objects. That could scratch the surface of the panel or cause “Mura” The panel is placed facedown on the lap. That may cause “Mura” ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 7: Specification

    1024 x 768 @ 60Hz, 48.4kHz 1024 x 768 @ 70Hz, 56.5kHz 1024 x 768 @ 72Hz, 58.1kHz 1024 x 768 @ 75Hz, 60.0kHz 1024 x 768 @ 85Hz, 68.67kHz 1152 x 864 @ 75Hz, 67.5kHz ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 8 700:1 (typ.), 450:1 (minimum) Color Depth 16.2million colors (6 bits+2bits data) Viewing Angle (Horizontal) 150 degrees @ CR>10 Viewing Angle (Vertical) 135 degrees @ CR>10 Response Time 8ms (Typ.) 10%-90% @ Ta=25°C ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 9 Storage Temperature -20°C to +60°C Operating Relative Humidity 10% to 90% RH Non-Condensing Storage Relative Humidity 5% to 90% RH Non-Condensing Operating Altitude 0 to +3,000 meters Storage Altitude 0 to +12,000 meters ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 10: Front Panel Function Control Description

    Green = ON Contrast adjustment control Orange = Power Saving screen. Also a shortcut to Auto Image Adjust. Displays the Main Menu Power or exits the control screen On/Off and saves adjustments. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 11 • 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 dislay.) ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 12: Main Menu Controls

    — Adds red to the screen image for warmer white and 6500K richer red. Default setting. — Adds green to the screen image for a darker color. 5400K ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 13 Vertical moves the screen image up and down. (Horizontal Size) adjusts the width of the screen image. H. Size Vertical size is automatic with your LCD dislay. NOTE: ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 14 OSD Timeout screen is displayed. For example, with a “15 second” setting, if a control is not pushed within 15 seconds, the display screen disappears. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 15 OSD control screens you can also view open software applications, or the Windows desktop. returns adjustments to the original factory Memory Recall settings if the display is operating in a factory Preset Timing Mode listed in this user guide. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 16: Main Menu

    [1] + [▼ ▼ ▼ ▼ ] + [▲ ▲ ▲ ▲ ] White Balance. (Keep pushing 5 sec) [1] + [▼ ▼ ▼ ▼ ] Power Lock [1] + [▲ ▲ ▲ ▲ ] OSD Lock ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 17: Circuit Description

    LVA0P Output A-Link Positive LVDS Differential Data Output 41 LVA1M Output A-Link Negative LVDS Differential Data Output 40 TSU16AS SXGA LCD Controller with Analog Interface and Dual LVDS Transmitter Preliminary Data Sheet Version 0.2 Version 0.2 - 5 - 10/1/2004 ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 18 PLL Clock Rate 12 220 MHz PLL Jitter 500 ps p-p Sampling Phase Tempco TBD ps/ C 　 DIGITAL INPUTS Input Voltage, High (VIH) 2.5 V Input Voltage, Low (VIL) 0.8 V ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 19 • Maximum 6 channels of PWM DAC • Compliant with VESA DDC1/2B/2Bi/2B+/CI standard • Watchdog timer with programmable interval • Support external counters/timers, T0, T1, and ET2 • Single/double frequency clock output ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 20 There are two signal to control the inverter which come from system. Logic “high” level which send to I901 is turn on the inverter. BRI signal control brightness by DC level which was integral from PWM signal. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 21: Adjustment Procedure

    1024 x 768 @ 85Hz, 68.67kHz 1152 x 864 @ 75Hz, 67.5kHz 1152 x 870 @ 75Hz, 68.7kHz 1280 x 1024 @ 60Hz, 63.4kHz 1280 x 1024 @ 75Hz, 79.97kHz 1280x 720 @ 60Hz, 45kHz (HDTV) ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 22 Figure 9 Pattern pure white and black pattern, no other color. Fine Line Morie Pattern (Figure1) Gray Scale Pattern (Figure2) Horizontal & Vertical Thickness Pattern (Figure 3) R. Color Pattern (Figure 4) ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 23 Please select and enter “Auto Image Adjust” function on Main Menu to see if it is workable. The “Auto Image Adjust” function is aimed to offer a better screen quality by built-in ASIC. For optimum screen quality, the user has to adjust each function manually. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 24 E. Power turn off, Press and turn on power at the same time after “▲” and “ ” power LED is on, release key, Then press “ ” key go to factory mode. (Fig.1) (Fig.1) ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 25 - If not, please return the unit to repair area. 1.5.9 Screen Uniformity and Flicker Test Signal: 1280*1024@60Hz Test Pattern: Full White Pattern - Check and see if it is in normal condition. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 26 After final QC step, we have to erase all saved changes again and restore the factory defaults. You should do “All Mode Reset” again. 1.5.15 Power Off Monitor Turn off the monitor by pressing “Power” button. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 27 - Fixture for Firmware Upgrade - VGA Cable - PC (Personal Computer) - LPT Cable - Firmware Upgrade Program - One additional monitor for checking the program execution Printer Port VA902/b-3 VGA Cable LPT Cable ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 28 2.2.4 Connect Power Cord to VA902/b-3 Monitor. 2.2.5 Connect PC to the additional monitor. 2.3. ISP Download program procedure 2.3.1 Hardware Connect status: 2.3.2 Down load isp program Step 1: Execute ISP.exe ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 29 MTV512GM64 for this project. Then press the Create Security File Button to enter step 3. Step 3: Create Security File Enter the three string into the blank like fig 2. Then press OK Button. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 30 Press the Load MCU File button to select the file will be download. (*.hex) Step 5: Run Pressing the Run Button to start download program. Press OK button to Enter ISP mode. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 31 If the test result shows “passed,” it means the connection is well. If not (failed), it means the connection has problems.Then you need to check the setup procedure or reboot the PC, or simply use another PC to do the firmware upgrade. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 32 2. If you find the DDC does not conform to the monitor, you have to do the DDC key in. 3.1. Equipment Needed VA902/b-3 Monitor DDC Card RS232 cable Barcode Reader VGA Cable VA902/b-3 DDC Card RS-232 Cable VGA Cable Barcode Reader ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 33 (when key in DVI DDC information, use VGA transform to DVI port ) 3.2.4 Connect Power Cord to VA902(3) Monitor. 3.3. DDC Key In Procedure 3.3.1 Run DDC.exe 3.3.2 Choose model number and conform the Time then Press “ENTER” key. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 34 3.3.3 When appear the PIC “ choose DDC Card”, Press ALT+2 Enter DDC 2B test interface. Choose DDC Card 3.3.4 Press F8 to choose corresponding model.DAT (VA902(3).DAT press “ENTER” key) ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 35 3.3.5 Press F9 enter the download interface 3.3.6 Key in the serial number or use the barcode reader to scan the barcode of the monitor, and press “ENTER” key. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 36 3.3.7 The successful picture is as follows. ”Compare EDID ：OK! Press any key to continue”. 3.3.8 Let VA902(3) active then see the information in OSD, it shows ”Serial NO : PPZ0517A3178” ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 37 3.4. Check Method Use ViewSonic EDID Editor Connect the VA902(3) to PC with VGA Cable. Excute the EDID Editor, then Press Ctrl+F5. If the DDC is correct, you can see the information as follow: ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 38 1.4 Place the monitor into the carton and then put all the accessories into the carton. At last, close the carton and seal it with tape. (Figure 4) Power Cord Figure 4 Figure 3 User’s Guide ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 39 Disassembly Procedure 1. Disassembly of Stand unit from Monitor 1.1 Remove two Hinge Cover. 1.2 Unscrew four screws that secure Stand Unit. 1.3 Detach Stand Unit from the monitor. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 40 2. Disassembly of Front Cover and Rear Cover 2.1 Unscrew two screws that secure Rear Cover to remove Front Cover. 2.2 Unscrew 2 screws to remove Rear Cover. ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 41 3.2. Unscrew 2 screws to remove Shielding Plate. Shielding Plate 3.3. Unscrew 2 screws and disconnect the connector to remove VGA Cable. VGA Cable 3.4. Unscrew 7 screws and disconnect the wires to remove Main Board. Main Board ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 42 3.5. Lay Panel Unit facedown and unscrew 4 screws on its right and left sides to remove Panel Unit and Keypad Board. Panel Unit Panel Bracket Keypad Board ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 43: Troubleshooting Flow Chart

    CHECK I102 AND 5V OK? OARD ROUND CAP OK? CHECK I104 3.3V CHECK I104, 3.3V UROUND CAP SUROUND CAP BEAD OK? CHECK I103, CHECK I103 1.8V 1.8V SUROUND CAP UROUND CAP BEAD OK? ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 44 3.3 V ? CHECK 12 MHZ CHECK D807,I801,I801 PIN18, X101, C126 C127 OK? CHECK Y CHECK TRACE D807,I801,I801 PIN14,PIN15 RP04 RP05 CLOCK OK? CHECK CHECK D807,I801,I801 I102,EVERY TWO PIN KEYPAD SHORT? P103 OK? ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 45 I108 or Check Check Check R-pack P102 Pin102~128 Sign Cable soldering Pin 8,10,12 Check Check I106 poor I107 poor L101,102,103 C115,118,122 soldering soldering R112,115,119 C117,121,124 I108 P105 poor fail or soldering Poor soldering ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 46: Recommended Spare Parts List

    Remark 1: Above listed items are examples, supplier can expand the rows to add more necessary items. 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 47 BOM LIST (VA902-3) ViewSonic Model Number: VS10715 Rev: 1a Serial No. Prefix: QAK P Model Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2603307892P BEZEL ASS'Y ABS 94HB PS-7604B VA902 2603207094P STAND ASSY VE910 ABS 94HB BLACK 4001...
  • Page 48 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-C-0404-1834 2333647591P CAP ELE 105'C EC 4.7u/ 50V 5*11 P=5.0 T C815 2284122291P CAP CER CC 2200pF/1KV P=5.0 C820 2284122291P CAP CER CC 2200pF/1KV P=5.0 C821 E-00003250 2330006601P CAP ELE SPECIAL (3000HR) EC 1500u/ 16V 13*16 P=5.0 C...
  • Page 49 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty M-WR-0828-0455 2428106050P JUMPER 6¡í*5.0mm J123 M-WR-0828-0451 2428106150P JUMPER 0.6¡í*15.0mm J124 M-WR-0828-0450 2428106075P JUMPER 0.6¡í*7.5mm J125 M-WR-0828-0478 2428106100P JUMPER 0.6¡í*10.0mm J126 M-WR-0828-0450 2428106075P JUMPER 0.6¡í*7.5mm J127 M-WR-0828-0450 2428106075P JUMPER 0.6¡í*7.5mm J801...
  • Page 50 Universal number# Q'ty A-PC-0106-0277 2427130097P AC POWER CORD CHINA WALL 1.83M BLACK P951 DC-00003461 2002310402P GUARANT CARD VIEWSONIC WARRANTY CARD-C 2004 6P07 M-LB-0813-0862 2056606025P SERIAL LABEL VS CN WARRANTY CARD SN STICKER 6P08 M-LB-0813-0863 2056606010P SERIAL LABEL VIEWSONIC BOX STICKER-G...
  • Page 51 BOM LIST (VA902b-3) ViewSonic Model Number: VS10715 Rev: 1a Serial No. Prefix: M model Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2024268704P FRONT BEZEL ABS 94HB MIDNIGHT GRAY VA902B 1F01 PL-00003024 2053754700P LED INDIC.-PWR VE910 PMMA 94HB COLOR CLEAR...
  • Page 52 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-C-0404-1855 2287247212P CAP CER Y2 4700p/250V Y5V P=10.0 M K C803 2357510708P EC HI-RIPPLE 105C 400V EC 100u/400V 18*32 P=7.5 S C805 E-C-0404-2262 2285110291P CAP CER CC 1000P/1KV Y5P P=5.0 K T...
  • Page 53 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty M-WR-0828-0460 2428106125P JUMPER 6¡í*12.5mm J106 M-WR-0828-0450 2428106075P JUMPER 0.6¡í*7.5mm J107 M-MS-0808-0856 2428106200P JUMPER 0.6¡í*20mm J108 M-WR-0828-0460 2428106125P JUMPER 6¡í*12.5mm J109 M-WR-0828-0478 2428106100P JUMPER 0.6¡í*10.0mm J110 M-WR-0828-0478 2428106100P JUMPER 0.6¡í*10.0mm J111...
  • Page 54 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-R-0405-3211 2233447295P RES,CBN 1/4 S RD 1/4WS 4.7Kohm J T52 R122 E-R-0405-3211 2233447295P RES,CBN 1/4 S RD 1/4WS 4.7Kohm J T52 R123 E-R-0405-0645 2233420195P RES,CBN 1/4 S RD 1/4WS 200 ohm J T52...
  • Page 55 Universal number# Q'ty A-PC-0106-0277 2427130097P AC POWER CORD CHINA WALL 1.83M BLACK P951 DC-00003461 2002310402P GUARANT CARD VIEWSONIC WARRANTY CARD-C 2004 6P07 M-LB-0813-0862 2056606025P SERIAL LABEL VS CN WARRANTY CARD SN STICKER 6P08 M-LB-0813-0863 2056606010P SERIAL LABEL VIEWSONIC BOX STICKER-G...
  • Page 56 8. Exploded Diagram and Exploded Parts List ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 57 ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 58: Exploded Diagram And Exploded Parts List

    8. Exploded Diagram and Exploded Parts List EXPLODED PARTS LIST (VA902-3) ViewSonic Model Number: VS10715 Rev: 1a Serial No. Prefix: QAK Item ViewSonic P/N Ref. P/N Description Q'ty 2024268704P FRONT BEZEL ABS 94HB MIDNIGHT GRAY VA902B 2024268703P FRONT BEZEL ABS 94HB PS-7604B VA902 PL-00003024 2053754700P LED INDIC.-PWR...
  • Page 59 EXPLODED PARTS LIST (VA902b-3) ViewSonic Model Number: VS10715 Rev: 1a Serial No. Prefix: Item ViewSonic P/N Ref. P/N Description Q'ty 2024268704P FRONT BEZEL ABS 94HB MIDNIGHT GRAY VA902B 2024268703P FRONT BEZEL ABS 94HB PS-7604B VA902 PL-00003024 2053754700P LED INDIC.-PWR VE910 PMMA 94HB COLOR CLEAR...
  • Page 60 PACKING PART LIST ( VA902-3 ) ViewSonic Model Number: VS10715 Rev: 1a Item ViewSonic P/N Ref. P/N Location Q'ty VA902(3) monitor M-MS-0808-1317 2013053000P POLYETHY BAG P-00003014 2012179800P POLYFOAM (L) P-00003015 2012179900P POLYFOAM (R) DC-00005835 2438570017P CD-OWNER GUIDE DC-00005834 2002370022P GUARANT CARD(QSG)

  • Page 61: Block Diagram

    I901 DISPLAY Q102 D919,D910 3.3V Q901 I104 SCALAR I101 1.8V X101 I103 SYNC 3.3V MCU R,G,B INPUT R111 R113 I102,DDC D109,D110,D112 H,V SYNC VGA D-SUB EEPROM P101 I105 X101 SCL,SDA VGA 5V ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 62 10.1. DC - DC SOT-223 I103 VCC_1v8 AP1117T18 VCC_1v8 ( 4 ) C141 100uF/16V add heat piece VCC5V--(5,6) TO-263 VCC_3v3 I104 R139 AP1084T33 VCC_3v3 (3, 4,6 ) 1w1ohm C148 C144 C145 100uF/16V ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 63 VSYNC ( 4 ) R110 C107 Z102 R112 C108 Z101 2.2K 5.6V 5.6V 33pF 2.2K 220pF DDC-SDA R114 DDC_DAT ( 6 ) DDC-SCL R115 DDC_CLK ( 6 ) Z103 Z104 5.6V 5.6V ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 64 0.1uF ( 6 ) TCLK AD2 ( 6 ) AD1 ( 6 ) AD0 ( 6 ) XOUT AD3 ( 6 ) VCC_3v3 R162 R163 AdjBACKLIGHT ( 2 ) BRIGHT C189 10uF/50V ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 65 RXE1- LVB0P LVB0P RXE0+ RXE0+ LVB0M LVB0M RXE0- REX0- BL106-30RL-A VCC5V VLCD Q102 AP2305 ( 2,3,6 ) VCC5V R122 R124 D111 Q101 ( 6 ) onPANEL 2SC945 R123 4.7K R127 C136 1u/50V ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 66 R137 R135 RP04 P103 POWER R133 R136 LCD_ONOFF LED_AMBER LED_A LED_G LED_GREEN MENU Q103 Q104 MENU PLUS 2N3906 2N3906 MINUS DOWN EXIT SELECT C129 C130 C131 C132 C133 C134 C135 RP05 JST-PH8P-2.0-90 ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 67 10.6. KEY PAD P701 2_SELECT DOWN MENU LED_GREEN LED_AMBER LCD_ONOFF JST-PH8P-2.0-180 D701 S701 S702 S704 S703 S705 P/N : Key_pad 2202131400 ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 68 5.6K 4700PF/DIP R825 D814 0.5X3T 11.8K 1% F801 I802 R831 T2.5A/250V TLP621 I803 91K 1% C815 TL431D D810 C803 4.7U/50V 4700pF C802 R837 1K 4700pF R851 JUMPER WIRE S801 AC IN 100~240V ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 69 C921 470U/16V 1N4148 0.1uF D916 C923 R934 R929 R926 R923 SB140 0.1uF Brightness 51.1K/1% 110K/1% 91K/1% C917 Q911 R930 D914 C924 R937 R936 0.1uF AP9977GM 5.1K 1N4148 68nF 698/1% 698/1% D910 1N4148 ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 70 11. PCB Layout Diagrams 11.1. MAIN PCB TOP VIEW ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 71 11.2. MAIN PCB BOTTOM VIEW ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 72 11.3. CON PCB TOP VIEW ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...
  • Page 73 11.4. CON PCB BOTTOM VIEW ViewSonic Corporation VA902-3_VA902b-3 Confidential - Do Not Copy...

  • Page 74: 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 VA902-3_VA902b-3 Confidential - Do Not Copy...

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