ViewSonic E71F Manuel de service

Model No. VS1016219” Color TFT LCD DisplayService ManualViewSonic VX912-1ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-858

l TFT LCD PANEL 1st Source Panel Model number LPL LM190E03 B4N2/B4N4 Type TN type with LVDS interface Active Size 376.3 (H) x 301.1

l MECHANICAL Dimension (Desktop) Width 431 mm (17 inch) Height 468 mm (18.4 inch) Depth 201 mm (7.9 inch) Monitor Weight 6.7 Kg (14.8 lbs) Dimens

Adjusting the Screen ImageUse the buttons on the front control panel to display and adjust the OnView® controls which display on the screen. The OnVie

Do the following to adjust the screen image:1To display the Main Menu, press button [1]. NOTE: All OnView menus and adjustment screens disappear autom

Main Menu ControlsAdjust the menu items shown below by using the up ▲ and down ▼ buttons. Control ExplanationAuto Image Adjust automatically sizes,

Color Adjust provides several color adjustment modes: preset color temperatures and RGB which allows you to adjust red (R), green (G), and blue (B) se

Information displays the timing mode (video signal input) coming from the graphics card in your computer. See your graphic card’s user guide for instr

Setup Menu displays the menu shown below.The Setup Menu controls are explained below:Language allows you to choose the language used in the menus and

1. Outline 1.1 POWER On/Off , LED, Button"2" , Up arrow- button , Down arrow button , Button"1" , button , Down arrow button , Bu

3. ELECTRICAL SPECIFICATIONS 3.1 Standard conditions Display Area 338 x 270 mm Video Signal 0.7 Vpp Contrast 70% Brightness Max. Ambient 20 +/

CopyrightCopyright¤ 2004 by ViewSonic Corporation. All rights reserved. No part of this publication may bereproduced, transmitted, transcribed, stor

5. EDID data Analog EDID ______________________________________________________________________

(25 -34) CHROMA INFO: Red X - 0.639 Green X - 0.297 Blue X - 0.146 White X - 0.313 Red Y - 0.342 Green Y - 0.615 Blue Y - 0.068

______________________________________________________________________ (72-89) Detailed Timing / Descriptor Block 2: Monitor Serial Number

Digital EDID Time: 08:18:48 Date: Tue Jun 29, 2004 __________________________________________

(25-34) CHROMA INFO: Red X - 0.639 Green X - 0.297 Blue X - 0.146 White X - 0.313 Red Y - 0.342 Green Y - 0.615 Blue Y - 0.068 W

______________________________________________________________________ (72-89) Detailed Timing / Descriptor Block 2: Monitor Serial Numbe

6. THEORY OF OPERATION This section describes the function of the LCD monitor per functional block. This monitor includes MB board, power board and

3 P5.0 LCD panel power2 on / off control 36 P4.0 Backlight on / off control e) Panel Power Sequencing ( VDDCTRL1, 2) ( Pin 32, 3) : The MTV31

OSD Function Menu 1. Main Menu Press “1” Button (Menu Button) to enter Main Menu: Press Up Button to the previous page or Down Botton to the next

(5) Manual Image Adjust Page: Press “2” Button to enter Manual Image Adjust page. Press “1” Button t

TABLE OF CONTENTS 2. Specification3. Front Panel Function Control Description4. Circuit Description6. Trouble Shooting Flow Chart9. Block Diagram10.

2) Resolution Notice Item Press “2” Button to enter Resolution Notice item. Press “1”

3. Function test (1) Test equipment Color video Signal & pattern generator (or PC with SXGV resolution ) (2) Test condition Warm-up at least

5. Test pattern Item Test condition Pattern Specification Remark 1 Frequency & performance Cross-hatch pattern No noise is allow & al

Pattern 5 Pattern 6 Pattern 7 Pattern 8 Pattern 9 30ViewSonic Corporation Confidential - Do Not Copy VX912

6. Firmware update procedure : When you received a received monitor , please check whether the firmware version. If not , please 1. Equipment need

2. Connection : To PCTo Monitor Appendix A : How to install the software for ISP : 1. To setup ISP environment : Hardware: PC or note

2. Double-click the “ PORT95NT.exe” in Windows & install the program. , see Fig 0.1

4. Choose “ Typical “ then press “ Next “ , see Fig. 0.3 Fig. 0.3 5. Keep on press “ Next “

6. Install completed , restart the PC or notebook. See Fig 0.5 Fig. 0.5 Install ISP 1. User could download ISP driver and PORT95NT insta

3. Press “ Next “ button to continue., see Fig 1.1 Fig 1.1 4. Keep default setting or press “ Change “ button for selecting the pa

1. Appropriate Operation (1) Turn off the product before cleaning. (2) Use only a dry soft cloth when cleaning the LCD panel surface. (3) Use a so

5. Press “ Install “ button to continue , see Fig 1.3 Fig. 1.3 6. Installation has finished , press “ Finish “ button , see Fig 1.

Appendix B : How to use software to upgrade the BIOS : 1. After installation , we could find the shortcut in the setting path or the program b

4. Press “ Create Security File “ button to key in Security code . Adjusting bar to decrease speed of IIC bus , See Fig. 2.4 . F

5. Fig 2.5 shows the setting for security code of software ISP . it needs 2 command No. and key in command sequentially for 7C , 4C , 77. The comman

Appendix C : Use ISP to program MCU 1. Select MTV type first , load the binary or intel hex file that you want to program into the MCU , and select

2. If user change the MTV type , it must load file again , or the buffer of load file will be cleared . 3. CRC ( cyclic redundancy check ) : the h

1. No Power 6. Trouble Shooting Flow Chart 43ViewSonic Corporation Confidential - Do Not Copy VX912

2. No Characters , Missing Color 3 Always show NO SIGNEL 44ViewSonic Corporation Confidential - Do Not Copy

Rev: 1bItem ECR/ECN ViewSonic P/N Ref. P/N Location Q'ty1 Power board B-PS-0204-0076 AS02B012D24 Adaptor/Inveter board 12 main board B-MB-0201-27

ViewSonic Model Number: VX10162Rev: 1aLevel Part Number Part Description Qty Location0 VX912 1L9VDZLVS12 L9V LCD MONITOR(L9VD,LG VX912)USA1 #N/A 29L7V

(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist nor bend the TFT Module even momentary.

47ViewSonic Corporation Confidential - Do Not Copy VX9128. Exploded Diagram And Spare Parts List

ViewSonic Model Number: VX10162Rev: 1aItem ViewSonic P/N Ref. P/N DESCRIPTION UNIT1 C-FP-0301-1048 EBL9V001018 BEZEL L9V(EAL9V001,REV3A) 12 C-FP-0301-

49ViewSonic Corporation Confidential - Do Not Copy VX912 Rev: 1aItem Viewsonic P/N Ref. P/N Description1 M-00000265 1L9VDZLVS12 VX912 LCD moni

Packing procedure 1. Paste protection film to protect the monitor. 2. Put the monitor in EPE bag & seal the with tape 3

4. Put the monitor into carton & put all the accessories into the carton . QSGPower cord Then close the carton.Disassemble monitor 1.

3. Remove the 4pcs of black hinge screw & separate the stand & head part 4. Face-down & put the monitor on soft surface of desktop 5.

6. Remove 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

9. Remove the MB-LCD connector & loosen the 4 screws on PCB holder Screws 10. Separate the PCB holder & panel 54Vie

11. Loosen the 4 screws on the sides of panel 12. Remove the front bezel & panel 55ViewSonic Corporation Confidential - Do N

13. Remove the 4 hexagon screws beside the DVI & D-sub connector 14. Remove the screws which fixed the power board & Main board

Correct methods : Incorrect Methods : Only touch the metal-frame of the panel or the front cover of the monitor . Do not touch the surface of the pol

9.1 Video 9. Block Diagram 57ViewSonic Corporation Confidential - Do Not Copy VX912

9.2 Power 58ViewSonic Corporation Confidential - Do Not Copy VX912

AUDIO_MUTEPOWER INVERTER AND AUDIO BOARDAUDIO_VOLUMEPCVGAMICRO-CONTROLLERMTV312ANALOG RGBDDCEEPROM24LC16+3.3VLCDPWR_ON3.3VPOWER LCDVCC+5.0V+3.3V+2.5V

PAGE1 VGAINPUT132SOT23DISPLAYVGA AND DVI INPUT38Thursday, February 19, 2004BTitleSize Document NumberRevDate:Sheet ofHSYNCRED+INGREEN-INGREEN+IN BLUE+

Dual InputDISPLAYMST8131A48Thursday, February 19, 2004BTitleSize Document NumberRevDate:SheetofOSPPA11GPO4PB23PA2PB24PB15PB10PB25PB19ESPPB13PA23PA5PA2

DTO BUTTON BOARDDEBUG PORTPARAMETEREEPROM2.0mm pitch 90° E&Tmodify debug portDISPLAYMCU & BUTTON58Thursday, February 19, 2004BTitleSize Docum

1DE21S1323BGCCE2B2G33DS1DISPLAYPANEL INTERFACEThursday, February 19, 2004BTitleSize Document NumberRevDate:SheetofLCDVCCFCLKNBCLKPLCDVCCLCDVDDLVB2PPOL

PCAUDIO-INDISPLAYAudio78Thursday, February 19, 2004BTitleSize Document NumberRevDate:SheetofR_LINEZ0415VOLUSPKOUTRSPKOUTLL_LINELIN_PCZ0416 RIN_PCVOLUM

0.8A Max0.8A MaxDISPLAYPOWER88Thursday, February 19, 2004BSCHEMATIC1TitleSize Document NumberRevDate:Sheetof+5V+5VVDD2V5+5VVDD3V3VCC1212VinL34CX000800

11. PCB Layout Diagrams 66ViewSonic Corporation Confidential - Do Not Copy VX912

Correct Methods : Incorrect Methods : Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects . That could scratch

*Readers Response*Dear Readers:Thank you in advance for your feedback on our Service Manual,which allows continuous improvementof our products. We wo

l GENERAL specification Test Resolution & Frequency 1280x1024 @ 60Hz Test Image Size Full Size Contrast and Brightness Controls Factory Defaul

l ELECTRICAL REQUIREMENT Horizontal / Vertical Frequency Horizontal Frequency 24 – 82 KHZ Vertical Refresh Rate 50 – 85* HZ. * FOR RESOLUTION