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by ViewSonic Corporation. All rights reserved. No part of this publication may be

reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or
computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical,
manual or otherwise, without the prior written permission of ViewSonic Corporation.

Disclaimer

ViewSonic makes no representations or warranties, either expressed or implied, with respect to the
contents hereof and specifically disclaims any warranty of 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 of ViewSonic to notify any person of such revision or
changes.

Trademarks

ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.

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registered trademark of ViewSonic Corporation.

Revision History

DCN Number

ECR Number

Documents Number

Description of Changes Editor

Revision

SM Editing Date

1a

10/15/04 4460 Initial Release A. Lu

1b

11/11/04 4869

Scalar change: From Mstar MST 8131A(P/N: AJ08131CC06)

A. Lu

4807

To RealTek 2523 (P/N: AJ02523CF02)

i

ViewSonic

Corporation

Co

nfidential

-

Do

Not

Copy

VX912

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Содержание VX912

Страница 1: ...Model No VS10162 19 Color TFT LCD Display Service Manual ViewSonic VX912 1 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 VX912_SM_836 Rev 1b Nov 2004 ...

Страница 2: ...ss 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 of ViewSonic to notify any person of such revision or changes Trademarks ViewSonic is a registered trademark of ViewSonic Corporation All other trademarks used within this document are the property of their respective owners O...

Страница 3: ... Trouble Shooting Flow Chart 9 Block Diagram 10 Schematic Diagrams 7 Recommended Spare Parts List 1 Precautions and Safety Notices 5 Adjusting Procedure 8 Exploded Diagram And Spare Parts List 11 PCB Layout Diagrams 1 5 9 15 26 48 54 57 67 69 75 ii ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 4: ...ause of the high voltage used in the inverter circuit the voltage is exposed in such areas as the associated transformer circuits 4 LCD Module Handling Precautions 4 1 Handling Precautions 1 Since front polarizer is easily damaged 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 wi...

Страница 5: ...cent 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 The LCD module should be supplied by power complied with requirements of Limited Power Source IEC60950 or UL1950 or be applied exemption 14 The LCD module is designed so that the CFL in it is supplied by L...

Страница 6: ...ont cover of the monitor Do not touch the surface of the polarizer Surface of the panel is pressed by fingers this may cause MURA Take out the monitor with cushion Take out the monitor by grasping the LCD panel That may cause MURA 3 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 7: ...rect Methods Incorrect Methods Place the monitor on a clean soft foam pad Place the monitor on foreign objects That could scratch the surfaceof panel 4 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 8: ...c Compatibility Separate Sync Composite Sync SOG Video Compatibility Shall be compatible with all PC type computers Macintosh computers and after market video cards Resolution Compatibility 640 x 350 640 x 480 720 x 400 640 x 400 800 x 600 832 x 624 1024 x 768 1152 x 864 1152 x 870 1280 x 720 1280 x 1024 The image vertical size might not be full screen But the image vertical position should be at ...

Страница 9: ... Yes 7 640 x 480 72Hz 37 9kHz Yes Yes 8 640 x 480 75Hz 37 5kHz Yes Yes 9 640 x 480 85Hz 43 27kHz Yes Yes 10 720 x 400 70Hz 31 5kHz Yes Yes 11 800 x 600 56Hz 35 1kHz Yes Yes 12 800 x 600 60Hz 37 9kHz Yes Yes 13 800 x 600 75Hz 46 9kHz Yes Yes 14 800 x 600 72Hz 48 1kHz Yes Yes 15 800 x 600 85Hz 53 7kHz Yes Yes 16 832 x 624 75Hz 49 7kHz Yes Yes 17 1024 x 768 60Hz 48 4kHz Yes Yes 18 1024 x 768 70Hz 56 ...

Страница 10: ...0 cd m2 Typ after 30 minute warm up 200 cd m2 Min after 30 minute warm up Brightness Uniformity 77 Entire Area Contrast Ratio 500 1 typ 300 1 min Color Depth 16 2 million colors 6 bits 2 bits FRC Viewing Angle Horizontal CR 10 Typical 140º 70º Minimum 120º 60º CR 5 Typical 160º 80º Minimum 140º 70º VIEWING ANGLE VERTICAL CR 10 Typical 140º 70º Minimum 120º 60º CR 5 Typical 160º 80º MINIMUN 140º 70...

Страница 11: ... inch Monitor Weight 5 3 Kg 11 7 lbs Ergonomics Tilt Up From 0ºup to 20º Tilt Down From 0ºdown to 3º 5 º l ENVIRONMENTAL Operating Temperature 0 C to 40 C Storage Temperature 20 C to 60 C Operating Relative Humidity 20 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 8 ViewSonic Corporation Confiden...

Страница 12: ...ns and adjusts the displayed control Also a shortcut to display the Contrast adjustment control screen Power On Off Displays the control screen for the highlighted control Also toggles between two controls on some screens Also a shortcut to toggle between analog and digital connections Power light Green ON Orange Power Saving Displays the Main Menu or exits the control screen and saves adjustments...

Страница 13: ...1 twice The following tips may help you optimize your display Adjust your computer s graphic card so that it outputs a video signal 1280 x 1024 60 Hz to the LCD display Look for instructions on changing the refresh rate in your graphic card s user guide If necessary make small adjustments using H POSITION and V POSITION until the screen image is completely visible The black border around the edge ...

Страница 14: ...r the video refresh rate to 60 Hz and set the resolution to its Contrast adjusts the difference between the image background black level and the foreground white level Brightness adjusts background black level of the screen image Input Select allows you to toggle between an analog and a digital signal pre set value functions are not available for DVI input NOTE 1 Auto Image Adjust works with most ...

Страница 15: ...d blue B 1 To select color R G or B press button 2 2 To adjust selected color press or 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 Control Explanation SRGB 9300K 6500K 5400K User Color Color Adjust sRGB sRGB is quickly becoming the industry standard for color management with support being included in ma...

Страница 16: ...s are explained below Horizontal Size adjusts the width of the screen image Horizontal Position moves the screen image left or right Vertical Position moves the screen image up or down Fine Tune sharpens focus by aligning the illuminated text and or graphic characters Sharpness adjusts the clarity and focus of the screen image Control Explanation H V Position Manual Image Adjust 1 Exit 2 Select H ...

Страница 17: ...s displayed For example with a 15 second setting if a control is not pushed within 15 seconds the display screen disappears OSD Background allows you to turn the On Screen Display background on or off Control Explanation Memory Recall returns adjustments to the original factory settings if the display is operating in a factory Preset Timing Mode listed in this user guide Exception This control doe...

Страница 18: ...ust Setup Menu Memory Recall 1 4 Contrast and Brightness can be directly controlled with UP DOWN key 2 Connectors 2 1 AC inlet CEE22 typed connector 2 2 Video signal connector for analog input 15P Mini D Sub PIN MNEMONI SIGNAL 1 RV Red Video 2 GV Green Video 3 BV Blue Video 4 NC None 5 GND Ground DDC return 6 RG Red GND 7 GG Green GND 8 BG Blue GND 9 5V 5V for DDC 10 SG Sync GND 11 NC None 12 SDA ...

Страница 19: ... 1 10 RX1 TMDS positive differential input channel 1 11 GND Logic Ground 12 RX3 Reserved No connection 13 RX3 Reserved No connection 14 5V Power 15 GND Logic Ground 16 HP SENSE Pin Pull High 17 RX0 TMDS negative differential input channel 0 18 RX0 TMDS positive differential input channel 0 19 GND Logic Ground 20 RX5 Reserved No connection 21 RX5 Reserved No connection 22 GND Logic Ground 23 RXC TM...

Страница 20: ...n following specification this LCD display can automatically function with a certain position Horizontal Sync frequency 30 82 kHz Vertical Sync frequency 56 75Hz 3 4 Signal level and input impedance 3 4 1 Video Signal level 0 7Vp p Video signal 3 4 2 Sync Signal level H V Separate TTL level 3 4 3 Input impedance Analog video input 75 ohm Digital video input 100 ohm Sync input 1 k ohm Audio input 1...

Страница 21: ... 20 20 20 20 20 20 00 00 110 00 FC 00 56 58 39 31 32 0A 20 120 20 20 20 20 20 20 00 28 ______________________________________________________________________ 08 09 ID Manufacturer Name VSC 11 10 Product ID Code 8D1A 12 15 Last 5 Digits of Serial Number Not Used 16 Week of Manufacture 01 17 Year of Manufacture 2004 10 17 Complete Serial Number See Descriptor Block 18 EDID Version Number 1 19 EDID R...

Страница 22: ...2 X 864 75Hz 1024 X 768 85Hz 800 X 600 85Hz 640 X 480 85Hz Not Used Not Used Not Used ______________________________________________________________________ 54 71 Detailed Timing Descriptor Block 1 1280x1024 Pixel Clock 108 00 MHz ______________________________________________________________________ Horizontal Image Size 376 mm Vertical Image Size 301 mm Refreshed Mode Non Interlaced Normal Displ...

Страница 23: ...tailed Timing Descriptor Block 3 Monitor Range Limits Min Vertical Freq 50 Hz Max Vertical Freq 85 Hz Min Horiz Freq 30 KHz Max Horiz Freq 82 KHz Pixel Clock 140 MHz Secondary GTF Not Supported ______________________________________________________________________ 108 125 Detailed Timing Descriptor Block 4 Monitor Name VX912 126 No Extension EDID Block s 127 CheckSum OK 20 ViewSonic Corporation Co...

Страница 24: ...30 31 0A 90 00 00 00 FD 00 32 55 1E 52 0E 100 00 0A 20 20 20 20 20 20 00 00 110 00 FC 00 56 58 39 31 32 0A 20 120 20 20 20 20 20 20 00 7D ______________________________________________________________________ 08 09 ID Manufacturer Name VSC 11 10 Product ID Code 8D1A 12 15 Last 5 Digits of Serial Number Not Used 16 Week of Manufacture 01 17 Year of Manufacture 2004 10 17 Complete Serial Number See ...

Страница 25: ... 864 75Hz 1024 X 768 85Hz 800 X 600 85Hz 640 X 480 85Hz 640 X 400 70Hz Not Used Not Used ______________________________________________________________________ 54 71 Detailed Timing Descriptor Block 1 1280x1024 Pixel Clock 108 00 MHz ______________________________________________________________________ Horizontal Image Size 376 mm Vertical Image Size 301 mm Refreshed Mode Non Interlaced Normal Di...

Страница 26: ...tailed Timing Descriptor Block 3 Monitor Range Limits Min Vertical Freq 50 Hz Max Vertical Freq 85 Hz Min Horiz Freq 30 KHz Max Horiz Freq 82 KHz Pixel Clock 140 MHz Secondary GTF Not Supported ______________________________________________________________________ 108 125 Detailed Timing Descriptor Block 4 Monitor Name VX912 126 No Extension EDID Block s 127 CheckSum OK 23 ViewSonic Corporation Co...

Страница 27: ...o an internal crystal oscillator and corresponding logic A 24 576 MHz crystal is recommended b Analog to Digital Converter The RTD2523 chip has three ADC s analog to digital converters one for each color red green and blue The analog RGB signals are connected to RTD2523 as described below Pin Name Pin Number Red 37 Red 38 Green 34 Green 35 Blue 30 Blue 31 c OSD The RTD2523 has a fully programmable...

Страница 28: ...ature compensated reference comparator controlled duty cycle Oscillator with an active current sense circuit Desired output voltage are determined by the equation Volt 1 25 1 R17 R15 In this case the output voltage are 2 5 Volts for panel power 6 2 Power Inverter Board This is a specific power inverter power board for VE710 monitor 40W 12V 3 5A output power and backlight which converters 12 Vdc to...

Страница 29: ...rightness high Press Button to make brightness low Press 2 Button to enter Contrast Item Press 1 Button to exit the item 3 Input Select Page Press 2 Button to change Digital mode 4 Color Adjust Page Press 2 Button to enter Color Adjust page Press 1 Button to exit the page Press Button to the previous item or Bottom to the next item 1 sRGB Item 2 9300K Item 3 6500K Item 4 5400K Item Press 2 Button ...

Страница 30: ... Horizontal Size Item Press 2 Button to enter Horizontal Size item Press 1 Button to exit Horizontal Size item Press Button to make current item high Press Button to make current item low 3 Fine tune Item Press 2 Button to enter Fine tune item Press 1 Button to exit Fine tune item Press Button to make current item high Press Button to make current item low 4 Sharpness Item Press 2 Button to enter ...

Страница 31: ...n Press Button to make current option high Press Button to make current option low 4 OSD Time Out Item Press 2 Button to enter OSD Time Out item Press 1 Button to exit OSD Time Out item Press Button to make OSD time out long Press Button to make OSD time out short 5 OSD Background Item Press 2 Button to enter OSD Background item Press 1 Button to exit OSD Background item Enable Disable Option Pres...

Страница 32: ... 1 Button to exit the page 1 Contrast Item Press Button to make contrast high Press Button to make contrast low Press 2 Button to enter Brightness Item Press 1 Button to exit the item 2 Brightness Item Press Button to make brightness high Press Button to make brightness low Press 2 Button to enter Contrast Item Press 1 Button to exit the item 2 Input Select Page Press 2 Button to change Analog mod...

Страница 33: ...ress Button to make current item low 6 Setup Menu Page Press 2 Button to enter Setup Menu page Press 1 Button to exit Setup Menu page Press Button to the previous item or Bottom to the next item 1 Language Select Item Press 2 Button to enter Language Select item Press 1 Button to exit Language Select item Press Button to the previous option or Bottom to the next option English French Option Press ...

Страница 34: ...e Out item Press 1 Button to exit OSD Time Out item Press Button to make OSD time out long Press Button to make OSD time out short 5 OSD Background Item Press 2 Button to enter OSD Background item Press 1 Button to exit OSD Background item Enable Disable Option Press 2 Button to select the option Press 1 Button to exit the option Press Button to the previous option or Bottom to the next option a M...

Страница 35: ...l or out of Range If not have any signal it will show No signal information in center of the Screen If the V Sync more than 85Hz or its solution more than SXGA it will show Out of Range information in Center of the Screen How to enter factory mode and Burning Mode If you Press 2 then Power on it will enter Factory Mode Then it will add one Menu page named Factory Menu Press 2 Button Enter Factory ...

Страница 36: ...80 67Hz 35 0kHz Yes 7 640 x 480 72Hz 37 9kHz Yes 8 640 x 480 75Hz 37 5kHz Yes 9 640 x 480 85Hz 43 27kHz Yes 10 720 x 400 70Hz 31 5kHz Yes 11 800 x 600 56Hz 35 1kHz Yes 12 800 x 600 60Hz 37 9kHz Yes 13 800 x 600 75Hz 46 9kHz Yes 14 800 x 600 72Hz 48 1kHz Yes 15 800 x 600 85Hz 53 7kHz Yes 16 832 x 624 75Hz 49 7kHz Yes 17 1024 x 768 60Hz 48 4kHz Yes 18 1024 x 768 70Hz 56 5kHz Yes 19 1024 x 768 72Hz 5...

Страница 37: ...r performance RGB color Check the color temperature of RGB signal color Pattern 3 4 5 4 Sub pixel defect RGB color Check the sub pixel defect Pattern 3 4 5 5 Full white Full white Check the brightness CR bright pixel defect Pattern 6 6 Full black Full black Pattern 7 7 5 cycle pattern 5 cycle pattern Check the BU Pattern 8 8 1 dot pattern 1 dot pattern Check the flicker Pattern 9 Pattern 1 Pattern...

Страница 38: ...Pattern 5 Pattern6 Pattern 7 Pattern 8 Pattern 9 35 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 39: ...or please check whether the firmware version If not please 1 Equipment needed VX912 PC Personal computer LPT cable Fixture LM5ISP Firmware upgrade program following procedure to upgrade to the latest version 36 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 40: ...ISP environment Hardware PC or notebook parallel printer cable ISP tooling Software If OS was Win2000 or WinXP please install PORT95NT exe In order to ensure can execute ISP program please set BIOS in PC or Notebook as Fig 0 0 Fig 0 0 37 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 41: ...k the PORT95NT exe in Windows install the program see Fig 0 1 Fig 0 1 3 Keep on press Next 4 times to go through the installation processes see Fig 0 2 Fig 0 2 38 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 42: ...4 Choose Typical then press Next see Fig 0 3 Fig 0 3 5 Keep on press Next 4 times to go through the installation processes see Fig 0 4 Fig 0 4 39 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 43: ...SP 1 User could download ISP driver and PORT95NT install from Myson Century website www myson com tw 2 After extracting the ZIP file the total files list as Fig 1 0 and double click the file of setup exe to install Fig 1 0 40 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 44: ...ontinue see Fig 1 1 Fig 1 1 4 Keep default setting or press Change button for selecting the path that you want and then press Next button to continue see Fig 1 2 Fig 1 2 41 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 45: ...5 Press Install button to continue see Fig 1 3 Fig 1 3 6 Installation has finished press Finish button see Fig 1 4 Fig 1 4 42 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 46: ... bar default setting see Fig 2 1 Fig 2 1 2 Security file is a key to use ISP function press OK button see Fig 2 2 Fig 2 2 3 The warning is used to remind user of that different CPU rate may cause ISP function fail Fig 2 3 it s limited by IIC protocol press OK button see Fig 2 3 43 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 47: ...ess Create Security File button to key in Security code Adjusting bar to decrease speed of IIC bus See Fig 2 4 Fig 2 4 Speed of IIC bus Security code 44 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 48: ...it needs 2 command No and key in command sequentially for 7C 4C 77 The command No and command must be set by user while coding About the detailed of setting please refer to section 6 boot code of ISP Fig 2 5 45 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 49: ...elect MTV type first load the binary or intel hex file that you want to program into the MCU and select AUTO item then press RUN button see fig3 1 Fig 3 1 Step 3 Step 1 Step 2 Step 4 46 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 50: ... be cleared 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 see Fig 3 2 Fig 3 2 47 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 51: ...1 Display color abnormal 6 Trouble Shooting Flow Chart 48 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 52: ...2 Monitor can not power on 49 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 53: ...3 Monitor white screen 50 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 54: ...4 Monitor black screen 51 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 55: ...5 Analog input always shows NO SIGNAL 52 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 56: ...6 Digital input always shows NO SIGNAL 53 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 57: ... MB LCD cable 1 9 Documentation User manual CD wizard DC 00000264 HGL9V002010 user s manual 1 10 Electronic 19 LGL TFT LCD panel M LCD 0826 0252 AA190E03018 LCD panel 1 11 Screw M SCW 0824 6859 MM40060IL69 screw 4 12 Screw M SCW 0824 6802 MM30040IBJ9 screw 14 13 Miscellaneous LCD film L9V M MS 0808 9682 JXL9V001010 LCD panel film 1 14 Carton P BX 0601 0997 HFL9V001012 carton 1 15 End cap L P FM 06...

Страница 58: ... B4N4 SXGA 1 2 M BK 0805 0079 FAL7V014017 PCB BKT L7VD FAL7V014 REV3A 1 2 M MS 0808 9405 FAL7V015013 PCB SHIELDING L7VD FAL7V015 REV3A 1 2 M BK 0805 0109 FBL9V004018 LCD BKT L9V FBL9V004 REV3A 2 2 M LCD 0826 0241 FBL9V007017 LCD PANEL LOCK METAL L9V FBL9V007 REV3A 2 2 M SCW 0824 0726 MF30080BBJ5 SCREW F3 0 8L B NI 2 2 M SCW 0824 6802 MM30040IBJ9 SCREW M3 0 4 0 I NI 14 2 M SCW 0824 6800 MM30060IBJ8...

Страница 59: ...LCD FILM M L9VC JXL9V002 REV3A 1 2 M LB 0813 1043 HCL70021011 HI POT LABEL L70L HCL70021 REV3A 1 2 M MS 0808 9819 HCL7V014019 POP STICKER L7VD HCL7V014 REV3A 1 2 M MS 0808 9820 HCL7V027013 NO 1 STICKER L7VD HCL7V027 REV3A 1 2 N A HFL9V002019 SPACE PLATE L9V HFL9V002 REV3A 0 1 2 DC 00000427 HCL9V002016 WARNING LABEL L9VD HCL9V002 REV3A 1 56 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 60: ...57 ViewSonic Corporation Confidential Do Not Copy VX912 8 Exploded Diagram And Spare Parts List ...

Страница 61: ...21 M SCW 0824 6802 MM30040IBJ9 SCREW M3 0 4 0 I NI 10 22 M MS 0808 9811 GAL5M002011 RUBBER FOOT L5M GAL5M002 REV3B 4 23 M SCW 0824 0813 MF30060BBJ6 SCREW F3 0 6 B NI 1 24 M CV 0830 2589 EAL9V005013 STAND BKT COVER L9V EAL9V005 REV3A 1 25 M MS 0808 9812 EBL9V001019 STAND COVER F L9V EBL9V001 REV3A 1 26 M BK 0805 0110 FBL9V005014 STAND BKT L9V FBL9V005 REV3A 4 27 C BS 0303 0553 EAL9V004017 STAND BAS...

Страница 62: ... 0602 0897 HBL9V002015 END CAP R 1 4 DC 00000264 HGL9V002010 User manual CD 1 5 A PC 0106 0224 DM333181G97 Power cord 3P 1 8M 1 6 P BX 0601 1085 HFL9V003015 Carton 1 7 M LB 0813 1042 HCL7V019011 Carton label 1 8 M MS 0808 9817 HAL9V002014 EPE bag 1 ViewSonic Model Number VS10162 PACKING PARTS LIST VX912 1 59 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 63: ...Packing procedure 1 Paste protection film to protect the monitor 2 Put the monitor in EPE bag seal the with tape 3 Put the cushion on the monitor 60 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 64: ...ll the accessories into the carton QSG Power cord Then close the carton Disassemble monitor 1 Turn the monitor face to back side take the I O cover off 2 Remove the stand back cover 61 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 65: ...e the 4pcs of black hinge screw separate the stand head part 4 Face down put the monitor on soft surface of desktop 5 Separate the back cover front bezel 62 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 66: ...ove the screws which for fixed the B B pull the cable out from the 7 Remove the B B 8 Remove the screws on PCB shield remove it Screws connector on M B 63 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 67: ...9 Remove the MB LCD connector loosen the 4 screws on PCB holder Screws 10 Separate the PCB holder panel 64 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 68: ...11 Loosen the 4 screws on the sides of panel 12 Remove the front bezel panel 65 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 69: ...13 Remove the 4 hexagon screws beside the DVI D sub connector 14 Remove the screws which fixed the power board Main board 66 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 70: ... POWER 12V ANALOG RGB 17 Panel Backlight ADAPTOR Backight Control Inverter CPU MTV312V64 RST Keypad SCL SCL SDA SDA BRIGHTNESS 5V Switch Si2301DS RTD2523 Triple ADC Interface Clock GEN Host Interface Panel Interface EEPROM 24C16 Crystal 24 576MHz IRQ AR AG AB HSYNC VSYNC ON OFF CSZ DDC 24C02 DVI LVDS LVDS CLK CLK Panel Inverter control ISP 12V Crystal 11 059MHz ...

Страница 71: ...D PANEL 17 19 RSDS AND LVDS AC 90 264V BRIGHTNESS ANALOG RGB LCDPWR_ON3 3V DDC MICRO CONTROLLER MTV312 5 0V DVI AIC 1563 POWER INVERTER AND AUDIO BOARD 3 3V AUDIO_VOLUME 3 3V AIC1739 3 3V BLOCK DIAGRAM Doc Title C 2 8 Friday October 15 2004 Title Size Document Number Rev Date Sheet of 68 ViewSonic Corporation Confidential Do Not Copy VX912 ...

Страница 72: ...D27 Z5 6 NC 1 3 C26 22P 6 R34 100 6 C18 0 047u 6 C30 0 1U 6 NC D9 DAN217K NC 2 1 3 R31 100 6 D24 Z5 6 NC 1 3 R33 100 6 L9 0 6 D28 Z5 6 NC 1 3 R45 2K 6 NC R46 100 6 NC C19 0 047u 6 R50 10K 6NC R26 100 6 L8 0 6 C31 1U 6NC CN4 DVI D NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 RX2 RX2 GND RX4 RX4 SCL SDA VS RX1 RX1 GND RX3 RX3 5V GND HP RX0 RX0 GND RX5 RX5 GND RXC RXC 26 25 D25 Z...

Страница 73: ... 25 24 21 22 23 20 19 18 17 16 78 79 80 81 82 85 86 87 88 89 90 106 107 91 51 52 53 55 59 60 61 62 63 64 65 66 67 68 73 74 75 76 77 104 93 102 103 101 100 94 99 92 36 34 105 46 44 45 70 48 AR1N 2 5V Ground SDIO 0 SCLK SCSB RESET AHS AVS TCON 0 VCLK TMDS_TST PWM1 TMDS_GND TMDS_VDD EXT_RES TMDS_VDD RX2P RX2N TCON 1 V 7 TCON 7 V 4 ADC_GND ADC_VDD B B SOG ADC_TEST G R ADC_GND R ADC_VDD ADC_GND ADC_REF...

Страница 74: ...K 6 R115 4 7K 6 R81 2K 6 R100 1K 6 R89 33K 6 R165 NC 100K 6 U8 24LC16 1 2 3 4 5 6 7 8 A0 A1 A2 VSS SI SCK WP VCC Q12 2N3906 2 1 3 R101 1K 6 R90 33K 6 C103 NC 1U 16V R102 220 6 R91 33K 6 D32 NC 1N4148 R114 4 7K 6 R103 220 6 R110 4 7K 6 R106 NC 82K 6 C76 0 1U 6 R112 NC C85 0 1u 6 C75 0 1U 6 1 2 C81 0 1U 6 Y2 11 0592MHz C82 0 1U 6 R96 1K 6 R111 4 7K 6 D33 NC DAN202U 3 2 1 R95 1K 6 R116 4 7K 6 R142 NC...

Страница 75: ...U 16V Q8 SI2301DS 3 1 2 C69 0 1U 6 R70 82K 6 C67 2200P 6 L21 NC R68 10K 6 Q9 DTC144EUA 2 3 1 R67 82K 6 C74 NC 100U 16V Q11 NC DTC144EUA 2 3 1 R75 NC 82K 6 C73 NC 0 1U 6 R77 NC 10K 6 C72 NC 2200P 6 C71 NC 2200P 6 R76 NC 10K 6 Q10 NC SI2301DS 3 1 2 L17 FEB_0805 NC L18 FEB_0805 NC J1 RSDS_CON30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12...

Страница 76: ... 16 1 2 3 19 20 18 INL INR VAROUT_L VOLUME VAROUR_R OUTL OUTR MUTE STBY SVR GND VS VS GND GND GND GND GND GND C92 0 47U 8 NC C95 220P 6 NC R139 10K 6 NC R141 10K 6 NC L25 600 CX601T02001 NC 1 2 C97 330U 16V NC C89 1U 8 NC R140 10K 6 NC C91 330U 16V C96 220P 6 NC C98 0 1U 8 NC R130 10K 6 NC JP2 4606 04 04P R NC 1 2 3 4 R134 CX201209805 8 NC C99 330U 16V R132 100 6 NC Q16 DTC144EUA NC 2 3 1 L24 BEAD...

Страница 77: ...6 NC EC1 10uF 16V R2 0 1206 U2 AIC1563 1 2 3 4 5 6 7 8 DC DE CF GND FB VCC IS BOOST C11 0 1U 6 R144 4 7K 6 Q3 MMST3906 Q4 SN7002E 3 2 1 C7 0 1u 6 C9 120p 6 EC4 330u 16V D3 RB081L 20 1 3 R6 330 6 1 D1 1SS355 R16 1K 6 C3 0 1u 6 C100 0 1u 6 R8 0 6 R9 1K 6 R4 47 6 U1 AIC1117CY 3 1 2 VIN GND VOUT L28 CX201209805 8 C5 0 1u 6 C102 1U 6 R18 4 7K 6 L29 FEB 1206 NC EC3 10uF 16V R13 1K 6 EC2 10uF 16V FUSE1 0...

Страница 78: ...11 PCB Layout Diagrams 75 ViewSonic Corporation Confidential Do Not Copy VX912 Main Board Control Board ...

Страница 79: ...ng VX912 Service Manual m e t I t n e l l e c x E d o o G r i a F d a B 1 2 3 t i n U r i a F d a B 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 d o o G t n e l l e c x E Precautions And Safety Notices 1 8 Exploded Diagram and Spare Parts List 7 Recommended Spare Parts List Adjusting Procedure 2 Speci...

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