ViewSonic VG712b Manuel de service

Model No. VLCDS23719-6W/7W17” Color TFT LCD DisplayService ManualViewSonic VG712s/b-1ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (

6. LCD Panel Panel Characteristics Source panel AU panel (M170EG01 V0) Size 17”diagonal screen size Type MVA type with LVDS interface Pixel 1280*1

Appendix E: Analog EDID VG712s/b Analog EDID Time: 13:10:50 Date: Wed Jan 14, 2004 ______________________________

(21) Maximum Horizontal Image Size = 340 mm (22) Maximum Vertical Image Size = 270 mm (23) Display Gamma = 2.20 (24)

______________________________________________________________________ (54-71) Detailed Timing / Descriptor Block 1: 1280x1024 Pi

Appendix F: Digital EDID VG712s/b Digital EDID Time: 08:14:47 Date: Fri Jan 30, 2004 _________________________________

(21) Maximum Horizontal Image Size = 340 mm (22) Maximum Vertical Image Size = 270 mm (23) Display Gamma = 2.20 (24)

______________________________________________________________________ (54-71) Detailed Timing / Descriptor Block 1: 1280x1024 Pi

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

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

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

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

User Color— Individual adjustments for red (R), green (G), and blue (B).1To select color (R, G or B) press button [2].2To adjust selected color, press

Fine Tune sharpens the focus by aligning the text and/or graphic characters.NOTE: Try Auto Image Adjust first.Sharpness adjusts the clarity and focus

OSD Positionallows you to move the on-screen display menus and control screens. OSD Timeoutsets the length of time the on-screen display screen is dis

Hot Keys for Function Controls Buttons: Functions: [Up] + [Down] arrows Recall Contrast or Brightness while in the Contrast or Brightness adjustmen

1. Power supply (DC/DC Converter) The AP1501 is monolithic IC designed for M/B DC/DC converter, and owns the ability of driving a 3A load without any

2. Flash Memory The Pm39LV010R is a 1 Megabit, 3.3 Volt-only Flash Memory organized as 131,072 bytes of 8 bits each. This device is designed to use a

4. LVDS (THC63LVDM83A) The THC63LVDM83A transmitter converts 28 bits of CMOS/TTL data into LVDS (Low Voltage Differential Signaling) data stream

1. Function Test 1.1 Product - 17” LCD Monitor 1.2 Test Equipment - Color Video Signal & Pattern (or PC with SXGA resolution and a sound car

16. 832 x 624 @ 75Hz, 49.7KHz 17. 1024 x 768 @ 60Hz, 48.4KHz 18. 1024 x 768 @ 70Hz, 56.5KHz 19. 1024 x 768 @ 72Hz, 58.1KHz 20. 1024 x 768 @ 75Hz,

Horizontal & Vertical Thickness Pattern (Figure 3) R. Color Pattern (Figure 4) G. Color Pattern (Figure5) B. Color Pattern

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

Black-White Pattern (Figure 9) 1.5 Function Test and Alignment Procedure 1.5.1 All Modes Reset You should do “All Mode Reset” (Refer to Chapter

1.5.5 Fine Tune and Sharpness Test Signal: 1280*1024@60Hz Test Pattern: Line Moire Pattern - Check and see if the image has noise and focus perform

1.5.10 Dead Pixel and Line Test Signal: 1280*1024@60Hz Test Pattern: Dark and White Screen Pattern - Check and see if there are dead pixels on LCD

1.5.14 All Modes Reset After final QC step, we have to erase all saved changes again and restore the factory defaults. You should do "All Mode R

2.2 Setup Procedure 2.2.1 Connect P2 of Fixture with printer port of PC by LPT Cable. 2.2.2 Connect P1 of Fixture with VG712

2.2.6 Install GProbe Program by selecting and clicking Gprobe icon. Press “Yes” or “Next” buttons until the installation is complete. 32ViewS

33ViewSonic Corporation Confidential - Do Not Copy VG712s/b

34ViewSonic Corporation Confidential - Do Not Copy VG712s/b

35ViewSonic Corporation Confidential - Do Not Copy VG712s/b

2.3 Firmware Upgrade Procedure Step 1. Let VG712 enter Burn In Mode. (Refer to Chapter III-3. Hot Keys for Function Controls). Step 2. Save these thr

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

Step 4. Execute Gprobe program. Step 5. Click Connection Setup icon. Select Protocol: DDC 2Bi3, Port: LPT1 (0x378), Speed: 70000. 37ViewSonic Co

Step 6. Before executing the firmware program, please test the connection between the monitor and fixtures. Key in “test” after “Gprobe,” and then pr

Step 7. Key in “batch C:\VG712\bdisp.txt” after “Gprobe:”, and then press “Enter” key to begin programming. Step 8. The successful picture is as fo

Step 9. Unplug and replug power cord of VG712s/b and then enter “Burn In Mode” (Refer to Chapter III-3. Hot Keys for Function Controls). Check if the

Troubleshooting: 1. If the firmware upgrade fails at the last step, don’t unplug the power cord of the monitor. Just try the upgrade procedure aga

Test passed. Test passed. Test passed. Erasing FLASH... Done. Writing FLASH... Writing FLASH... FAILED. Error executing batch file at line 16. Ex

2. If the firmware upgrade still fails, reboot the PC, or simply use another PC to upgrade. 3. If the above procedures don’t work, unplug and re-plu

- PC (Personal Computer) with Win 98 - Power Adapter (P/N: 47.56001.501) *1 for Fixture - DDC Key In Program - One additional monitor for checking

3.2 Setup Procedure 3.2.1 Connect P2 of Fixture with VGA port of VG712s/b by VGA Cable. 3.2.2 Connect P3 of Fixture with DVI port of VG712s/b by DVI-

3.3 DDC Key In Procedure Step 1. Select and execute DDC Key In program. Step 2. Select “W/w - writing mode.” 46ViewSonic Corporation Confidentia

5. LCD Module Handling Precautions 5.1 Handling Precautions (1) Since front polarizer is easily damaged, pay attention not to scratch it. (2) Be s

Step 3. Key in the serial number or use the barcode reader to scan the barcode of the monitor, and then press “Enter” key. Notice: The English of th

Step 5. Let VG712 enter “Burn In Mode” (Refer to Chapter III-3. Hot Keys for Function Contro ls). Unplug and re-plug the power cord of the monitor. Th

This chapter provides technicians and people who have an electronic background a primary description about maintaining the product. Moreover, you can

2.1 A. Power Circuit Troubleshooting 2.2 B. Performance Troubleshooting 50ViewSonic Corporation Confidential - Do Not Copy VG712s/b

51ViewSonic Corporation Confidential - Do Not Copy VG712s/b

Notice: 1. Make sure VGA cable connected to PC directly, not via anything like “Data transfer” or “Distribution” ……After this action if Ghost image di

Rev: 1aItem ViewSonic P/N Ref. P/N Location Universal number# Q'ty1Accessories:ADAPTER IN100-240V 12V/3.33A;"LSE" A-AD-0114-0204 47.627

Rev: 1bItem ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Q'ty1Accessories:ADAPTER IN100-240V 12V/3.33A;"LSE" A-AD-0114-020

ViewSonic Model Number: VLCDS23719Rev: 1aItem ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty1 M-LB-0813-1016 35.00010.002 LAB

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty59 #N/A 01.33116.501 RES RP 330 1% 1/16W CHIP #0603 R28,R29,R3,R4,R8 560 #

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

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty105 #N/A 20.SI230.4D1 IC NMOS SI2304DS VISHAY SOT-23 Q1 1106 #N/A 20.THC63

ViewSonic Model Number: VLCDS23719Rev: 1b Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty1 M-LB-0813-1016 35.00010.002 LA

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty58 #N/A 01.33036.502 RES RP 33 5% 1/16W CHIP #0603;"TA-I TECHNOLR124,

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty94 #N/A 11.102M2.303 CNNT 10P 2.0mm TU2001WNR-10 RT/DIP;"TYU" JP

8. Exploded Diagram And Spare Parts List 61ViewSonic Corporation Confidential - Do Not Copy VG712s/b

Rev: 1aItem ViewSonic P/N Ref. P/N Description Q'ty1 M-MS-0808-8973 51.62705.001 LED LENS PMMA VG710s 12 M-MS-0808-8948 35.62704.001 ViewSonic AL

5 E-SK-0412-0080 49.62701.001 SPEAKER 3W FOR VG710 16 M-SCW-0824-6756 85.TA123.080 SCREW CAP TAP M3*8 Ni 47 M-MS-0808-8946 35.62702.001 BIRD LOGO AL

VG712s-1 PPL Packing for shipping 64ViewSonic Corporation Confidential - Do Not Copy VG712s/bItem ViewSonic P/N Ref. P/N Description Q'ty

GM512 0LG 17"OUTPUT14.318MH zEEPROMEEPROM(50-60Hz)INPUTINPUTTMDSPm39LV010RA/D BUS24LC16BLVDS SingalRB/GB/BB[0~7]RA/GA/BA[0~7]AUO 17"JackGM51

5V_MAIN=2.5A3.3V_MAIN MAX 5A(GM5120)(GM5120)(GM5120)LESREGM512016Thursday, July 10, 2003POWERTitleSize Document Number RevDate: SheetofBRIONVolume-BLO

Place the monitor on a clean and soft foam pad. Place the monitor on foreign objects. That will probably scratch the surface of the panel or cause “M

(KEYPAD)EGM512026Thursday, July 10, 2003INPUT CONNECTORTitleSize Document Number RevDate: SheetofDDCSDA1DDCSCL1VS_DSUBHS_DSUBSCL_IN2SDA_IN2HOT_PLUGSDA

100pF on pin-196EGM512036Thursday, July 10, 2003Gensis Chip (Scaler) ASICTitleSize Document Number RevDate: SheetofRMDATA6RMDATA5RMDATA2RMDATA4RMDATA3

AUGND AUGND AUGNDAUGNDAUGNDNCEGM512046Thursday, July 10, 2003AUDIOTitleSize Document Number RevDate: SheetofAAINR1OUT_L+VOLADOLINOUT_L-ADORI NOUT_R-O

Select LVDS MAPPIN GEX:RP5~RP16 for 0,1,2,3,4,5,6,7EX:RP18~RP29 for 2,3,4,5,6,7,0,1AUO 17",19" Samsung 17",19" CHI MEI 19"Fuj

For Fujitst Panel select Lvds mappin gEGM512066Thursday, July 10, 2003LVDS & OUTPUT CONNECTORTitleSize Document Number RevDate: SheetofVcontRxEIN1

11. PCB Layout Diagrams 72ViewSonic Corporation Confidential - Do Not Copy VG712s/b

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

1. General Requirements Test Resolution & Frequency 1280x1024 @ 60Hz Test Image Size Full Size Contrast and Brightness Controls Factory Default

<<Analog>> 640 x 350 @ 70Hz, 31.5KHz 640 x 400 @ 60Hz, 31.5KHz 640 x 400 @ 70Hz, 31.5KHz 640 x 480 @ 50Hz, 24.7KHz 640 x 480 @ 60Hz, 31.5K