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Sonic Corporation

Confidential - Do Not Copy

VA902-2_VA902b-2

27

Step 4: Load file

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.

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Содержание VA902-2

Страница 1: ...VA902 2_VA902b 2_SM Rev 1b Apr 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 ViewSonic VA902 2 Model No VS10715 19 Color TFT LCD Display Service Manual VA902b 2...

Страница 2: ...f merchantability or fitness for any particular purpose Further ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation...

Страница 3: ...y Notices 1 2 Specification 4 3 Front Panel Function Control Description 7 4 Circuit Description 14 5 Adjustment Procedure 21 6 Troubleshooting Flow Chart 40 7 Recommended Spare Parts List 43 8 Explod...

Страница 4: ...ed pay attention not to scratch it 2 Be sure to turn off power supply when inserting or disconnecting from input connector 3 Wipe off water drop immediately Long contact with water may cause discolora...

Страница 5: ...he CFL in Hazardous Voltage Circuit 5 2 Handling and Placing Methods Correct Methods Incorrect Methods Only touch the metal frame of the LCD panel or the front cover of the monitor Do not touch the su...

Страница 6: ...ft 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 Confident...

Страница 7: ...l Refresh Rate 50 85 Hz For resolution 1280 x 1024 the vertical Refresh rate up to 75 Hz for there rest Resolutions the vertical refresh rate up To 85Hz Maximum Pixel Clock 135 MHz Sync Polarity Indep...

Страница 8: ...gement RGB Vertical Stripe Pixel Pitch 0 294 mm of Backlights 4 CCFL edge light 2 top 2 bottom Backlight Life 40 000 Hours minimum Panel Performance Luminance Condition CT 6500K Contrast Max Brightnes...

Страница 9: ...orage 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...

Страница 10: ...trol screen Power On Off Displays the control screen for the highlighted control Also toggles between two controls on some screens Also a shortcut to Auto Image Adjust Power light Green ON Orange Powe...

Страница 11: ...ze your display Adjust your computer s graphic card so that it outputs a video signal 1280 x 1024 60 Hz to the LCDdislay Look for instructions on changing the refresh rate in your graphic card s user...

Страница 12: ...rovides several color options preset color temperatures and User which allows you to adjust red R green G and blue B The factory setting for this product is 6500K 6500 Kelvin 6500K Adds red to the scr...

Страница 13: ...dislay H V Position adjusts horizontal and vertical position of the screen image You can toggle between Horizontal and Vertical by pressing button 2 Horizontal moves the screen image to the left or to...

Страница 14: ...Setup Menu controls are explained below OSD Position allows you to move the on screen display menus and control screens OSD Timeout sets the length of time an on screen display screen is displayed For...

Страница 15: ...sted in this user guide Control Explanation OSD Background allows you to turn the On Screen display background on or off This means that while making adjustments from the OSD control screens you can a...

Страница 16: ...ush button 2 recall Contrast or Brightness while in the Contrast or Brightness adjustment or recall both of Contrast and Brightness when the OSD is not open 1 2 toggle 720x400 and 640x400 mode when in...

Страница 17: ...interrupt 4mA driving strength 27 AD3 I O w 5V tolerant DDR direct bus AD3 4mA driving strength 4 AD2 I O w 5V tolerant DDR direct bus AD2 4mA driving strength 1 AD1 I O w 5V tolerant DDR direct bus A...

Страница 18: ...tial Clock Output 46 LVBCKP Output B Link Positive LVDS Differential Clock Output 45 GPO Interface Pin Name Pin Type Function Pin PWM1 Output PWM1 4mA driving strength 29 PWM0 Output PWM0 4mA driving...

Страница 19: ...TBD C W Note Stress above those listed under Absolute Maximum Rating may cause permanent damage to those indicated in the stress rating only functional operation of the device at these or any other co...

Страница 20: ...device There is an internal pull up resistance on each CMOS PAD and an internal pull down resistance on each input Low Power Reset LVR Watchdog Timer When the voltage level of power supply is below 2...

Страница 21: ...tem Timing 1 640 x 350 70Hz 31 5kHz 2 640 x 400 60Hz 31 5kHz 3 640 x 400 70Hz 31 5kHz 4 640 x 480 50Hz 24 7kHz 5 640 x 480 60Hz 31 5kHz 6 640 x 480 67Hz 35 0kHz 7 640 x 480 72Hz 37 9kHz 8 640 x 480 75...

Страница 22: ...rformance RGB Color Intensities Contrast of each R G B color should be normal Figure 4 5 6 5 Screen Uniformity Flicker Full White Should be compliant with the spec Figure 7 6 Dead Pixel Line White Scr...

Страница 23: ...r Function Controls first This action will allow you to erase all end user s settings and restore the factory defaults 1 5 2 Auto Image Adjust Please select and enter Auto Image Adjust function on Mai...

Страница 24: ...024 60Hz Test Pattern Horizontal Vertical Line Thickness Pattern Check and see if the image boundary is within the screen frame If not readjust by the following steps a Select and enter Manual Image A...

Страница 25: ...ess move cursor to 5400K press key x 0 332 0 02 2 y 0 348 0 02 7 Press key go back to Fig 2 Then press key return to Fig 1 Power key OFF ON quit factory mode 1 1 G Color Temperature Luminance Verify B...

Страница 26: ...00 600 60HZ 70HZ 75HZ 832 624 75Hz 1024 768 60HZ 70HZ 75HZ 1280 1024 60 75Hz Normally when the primary mode 1280 1024 60Hz is well adjusted and compliant with the specification the secondary display m...

Страница 27: ...procedures to upgrade it to the latest version 2 1 Equipment Needed VA902 b 2 Monitor Fixture for Firmware Upgrade VGA Cable PC Personal Computer LPT Cable Firmware Upgrade Program One additional mon...

Страница 28: ...ture with printer port of PC by LPT Cable 2 2 2 Connect P1 of Fixture with VA902 b 2 Monitor by VGA Cable 2 2 4 Connect Power Cord to VA902 b 2 Monitor 2 2 5 Connect PC to the additional monitor 2 3 I...

Страница 29: ...elect MCU type Pressing the Comb box to select the type of the MCU It need to be selected the MTV512M64 for this project Then press the Create Security File Button to enter step 3 Step 3 Creat Securit...

Страница 30: ...nfidential Do Not Copy VA902 2_VA902b 2 27 Step 4 Load file 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...

Страница 31: ...ng status between PC and ISP board b The connecting status between ISP status and Monitor Turn off the power of monitor AC plug off and disconnect the D Sub connector To connect the D Sub connector an...

Страница 32: ...n 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 2 Monitor DDC Card PC RS232 cable Barcode Reader VGA Cable VA902 b 2 DDC Card PC RS 2...

Страница 33: ...3 2 3 Connect RS 232 Cable and VA902 2 with VGA Cable when key in DVI DDC information use VGA transform to DVI port 3 2 4 Connect Power Cord to VA902 2 Monitor 3 3 DDC Key In Procedure 3 3 1 Run DDC e...

Страница 34: ...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 2 DAT press ENTER key ViewSonic Corporation Confidential Do Not Copy...

Страница 35: ...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 Confidential Do Not Copy VA902 2_...

Страница 36: ...picture is as follows Compare EDID OK Press any key to continue 3 3 8 Let VA902 2 active then see the information in OSD it shows Serial NO PPZ0517A3178 ViewSonic Corporation Confidential Do Not Copy...

Страница 37: ...onic EDID Editor Connect the VA902 2 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 Confidential Do No...

Страница 38: ...the bag with tape Figure 2 Figure 1 Figure 2 1 3 Put the cushions on the monitor Figure 3 1 4 Place the monitor into the carton and then put all the accessories into the carton At last close the carto...

Страница 39: ...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 Confidential Do Not Cop...

Страница 40: ...bly 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 Confidential Do Not Copy VA902 2_V...

Страница 41: ...ge Hinge 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...

Страница 42: ...nel Unit facedown and unscrew 4 screws on its right and left sides to remove Panel Unit and Keypad Board Keypad Board Panel Unit Panel Bracket ViewSonic Corporation Confidential Do Not Copy VA902 2_VA...

Страница 43: ...3V OK 1 8V OK Y Y CHECK POWER OARD OK CHECK I102 AND ROUND CAP OK N CHECK I104 SUROUND CAP BEAD OK CHECK I104 3 3V UROUND CAP OK N CHECK I103 SUROUND CAP BEAD OK CHECK I103 1 8V UROUND CAP OK N ViewSo...

Страница 44: ...12V 6 2 MCU NO FUNCTION CHECK VCC5V OK CHECK PIN40 D807 I801 I801 3 3 V N CHECK OK CHECK PIN18 OK D807 I801 I801 CHECK PIN14 PIN15 CLOCK OK Y CHECK D109 D110 D112 Y CHECK X101 C126 C127 OK Y CHECK TR...

Страница 45: ...L SDA Check N Check N N I105 SCL SDA I102 SCL SDA HWRESET Check BACKLITE Check Q102 Check N Check N N PANEL P102 WIRE I101 6 4 LOSE COLOR Some bits lost Check Pin102 128 Y I108 or R pack soldering N I...

Страница 46: ...ARD VS10715 AUO DC 00004501 2438501231P 6P80 1 12 LCD PANEL M190EN03 V3 N GRADE AUO E 00004502 2212009400P V901 RB 1 13 LCD PANEL M190EN03 V3 A GRADE AUO E 00004503 2212009401P V901 RA 1 14 CARTON BOX...

Страница 47: ...WIZARD VS10715 AUO DC 00004501 2438501231P 6P80 1 11 LCD PANEL M190EN03 V3 N GRADE AUO E 00004502 2212009400P V901 RB 1 12 LCD PANEL M190EN03 V3 A GRADE AUO E 00004503 2212009401P V901 RA 1 13 CARTON...

Страница 48: ...ING LABEL 6P14 1 40 P 00003014 2012179800P POLYFOAM VE910 EPS L 6P20 1 41 P 00003015 2012179900P POLYFOAM VE910 EPS R 6P21 1 42 N A 2055134107P LABEL VA902 VS10715 AUO TCO99 6P50 1 43 M LB 0813 0528 2...

Страница 49: ...IC AIC1117A 18PY SOT223 AIC I103 RA 1 113 N A 2365335076P LINEAR IC CM1117GDCM223 SOT223 CHAMPION I103 RB 1 114 N A 2365813696P IC LINEAR SMD AP1117E18LA SOT 223 AnaChip I103 RC 1 115 N A 2365335010P...

Страница 50: ...5410903P RES MTL 1 RS 1W 1 ohm J P 15 0 R139 1 183 E TH 0416 0042 2229201212P THERMISTOR PTH SCK 103 THINKING R802 1 184 N A 2233491495P RES CBN 1 4 S RD 1 4WS 910Kohm J T52 R803 R812 2 185 N A 223923...

Страница 51: ...T902 2 225 E 00003308 2202130701P PC BOARD JT178QP4D M B FR1 228 145 2 01 U101 1 226 N A 2202131400P PC BOARD VE910 K B FR1 120 23 5 V1 00 U701 1 227 E 00004502 2212009400P LCD PANEL M190EN03 V3 N GRA...

Страница 52: ...6P14 1 42 P 00003014 2012179800P POLYFOAM VE910 EPS L 6P20 1 43 P 00003015 2012179900P POLYFOAM VE910 EPS R 6P21 1 44 N A 2055134109P LABEL VA902B VS10715 AUO TCO99 6P50 1 45 M LB 0813 0528 205510340...

Страница 53: ...N A 2365813696P IC LINEAR SMD AP1117E18LA SOT 223 AnaChip I103 RC 1 117 N A 2365335010P LINEAR IC AP1084T33L TO 220 Anachip I104 RA 1 118 N A 2365335020P LINEAR IC AP1117T33L TO 220 Anachip I104 RB 1...

Страница 54: ...S PRE 1 4 S RN 1 4WS 619Kohm F T52 R805 R839 R844 3 189 N A 2233439095P RES CBN 1 4 S RD 1 4WS 39 ohm J T52 R807 1 190 N A 2239211035P RES PRE 1 4 S RN 1 4WS 110Kohm F T52 R808 R923 2 191 E 00003249 2...

Страница 55: ...03 2212009401P LCD PANEL M190EN03 V3 A GRADE AUO V901 RB 1 231 E X 0415 0119 2369103601P XTAL OSC 12 0000MHZ 49US 0 1mW 30pF X101 1 232 N A 2363516895P DIODE ZENER HZ6B 2 5 6 5 9V DO 35 HITACHI Z101 Z...

Страница 56: ...8 Exploded View And Exploded Parts List Model Title Date Rev ViewSonic Corporation ViewSonic Corporation Confidential Do Not Copy VA902 2_VA902b 2 53...

Страница 57: ...Model Title Date Rev ViewSonic Corporation ViewSonic Corporation Confidential Do Not Copy VA902 2_VA902b 2 54...

Страница 58: ...Y 1 13 HW 00003031 2071872900P BRACKET FIX JT198QP SECC 0 8T WALL MOUNT 1 14 HW 00003032 2106657000P HINGE VE910 5 20 90 1 15 M SCW 0824 0851 2082340072P SCREW CSK SCREW CSK M4 7 4 16 M SCW 0824 0123...

Страница 59: ...LCD Q102 3 3V I104 SCALAR 1 8V I101 Y VGA D SUB R G B INPUT P101 MCU 3 3VMCU D109 D110 D11 2 H V SYNC I103 D919 D910 Q901 SCL SDA SYNC R111 R113 I102 DDC VGA5V OSC X101 EEPROM I105 INPUT SW power supp...

Страница 60: ...VI VO GND R139 1w1ohm C148 NC C145 NC C141 100uF 16V C144 100uF 16V I104 AP1084T33 3 2 1 VI VO GND VCC_3v3 3 4 6 VCC_1v8 4 10 Schematic Diagrams VA902 b 2 10 1 DC DC Model Title Date Rev ViewSonic Co...

Страница 61: ...05 1N4148 R102 75 R110 2 2K R107 47 C105 0 047uF R109 47 R111 75 D101 1N4148 P101 JST PH13P 2 0 90 1 2 3 4 5 6 7 8 9 10 11 12 13 DDC SCL DDC SDA VGA VS VGA HS GND 5V B GND B G GND G R GND R GND D104 1...

Страница 62: ...52 3 4 20 35 34 33 2 1 54 32 RINP GINP SOGIN0 BINP RINM GINM BINM HSYNC VSYNC REXT REFP REFM ALE WRZ RDZ HWRESET INT PWM0 PWM1 LVACKM AVDD VDDP VDDP VDDC GND GND GND GND XIN XOUT LVA2P LVA2M LVA1P LV...

Страница 63: ...B1M PB7 LVA1M PA7 PA 0 9 4 PB 0 9 4 onPANEL 6 VCC5V VLCD VLCD Q102 AP2305 C136 1u 50V D111 NC P102 BL106 30RL A 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 0...

Страница 64: ...5 6 7 8 C131 NC C132 NC RP06 2K7 1 2 3 4 5 6 7 8 I102 CS8954 PDIP40 1 2 3 4 5 6 7 8 17 18 19 20 21 22 23 24 25 26 27 28 32 33 34 35 36 9 10 11 12 13 14 15 16 37 38 39 40 30 29 31 P5 0 DA0 P5 1 DA1 P5...

Страница 65: ...2 0 180 8 7 6 5 4 3 2 1 LCD_ONOFF LED_AMBER LED_GREEN GND MENU UP DOWN 2_SELECT S702 SW 1 2 D701 LED 2 3 1 S704 SW 1 2 10 6 KEY PAD Model Title Date Rev ViewSonic Corporation KEY PAD ViewSonic Corpora...

Страница 66: ...01 BEAD C811 1000P DIP D808 27V 3 3V 22 2V 5V R825 11 8K 1 R821 10 1 2W C815 4 7U 50V L808 0 5X3T C809 10uF 50V R809 47R 1206 R823 1K DIP D821 SRF10120 R834 100K 1 4WS C807 0 1UF R833 100K 1 4WS C803...

Страница 67: ...09 SB140 L901 BEAD R929 51 1K 1 D919 1N4148 AP9977GM Q911 1 2 3 4 5 6 7 8 D902 1N4148 R903 NC D906 1N4148 D901 1N4148 C911 68nF C915 33uF 25V R918 1M R914 681 1 C910 0 1uF C928 0 1uF D910 1N4148 I902...

Страница 68: ...11 1 MAIN PCB TOP VIEW 11 PCB Layout Diagrams ViewSonic Corporation Confidential Do Not Copy VA902 2_VA902b 2 65...

Страница 69: ...11 2 MAIN PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy VA902 2_VA902b 2 66...

Страница 70: ...11 3 KEYPAD PCB TOP VIEW 11 4 KEYPAD PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy VA902 2_VA902b 2 67...

Страница 71: ...y Systems Processes marc maupin viewsonic com d o o G t n e l l e c x E Precautions and Safety Notices 1 8 Exploded Diagram and Exploded Parts List 7 Recommended Spare Parts List Adjustment Procedure...

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