ViewSonic VS11369 Service Manual

ViewSonic VG921m-4 Model No. VS11369 19” Color TFT LCD Display (VG921m-4_SM Rev. 1a Nov. 2006) ViewSonic 381 Brea

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 7 Product definition and specification Product Name ViewSonic VG921m Oracle item# VG

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 8 4-1 GENERAL specification Test Resolution & Frequency 1280x1024 @ 60Hz Test Ima

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 9 4-4 POWER SUPPLY Internal Power Supply Part Number:PI-SB03 Input Voltage Range 100

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 10 4-5 ELECTRICAL REQUIREMENT Horizontal / Vertical Frequency Horizontal Frequency 24

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 11 31 1280 x 960 @ 50 Hz, 49.4 KHz 32 1280 x 960 @ 60 Hz, 59.7 KHz  

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 12 4-6 FRONT PANEL CONTROLS AND INDICATORS Front Panel Hardware Controls Power Switc

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 13 Function descriptions Main Menu Controls The Main Menu OSD includes most of control

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 14 Resolution Notice Actions 1. Resolution Notice OSD should show on screen after cha

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 15 4-8 TFT LCD PANEL Panel Characteristics : 1st Source Panel Model number HSD190M

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 16 4-9 IMAGE PERFORMANCE Display Size Horizontal Display Size, Primary Preset Full Sc

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 i Copyright Copyright © 2006 by ViewSonic Corporation. All rights reserved. No part

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 17 Contrast Ratio CR(Max) –Condition: Contrast / Brightness = 100% CCT = USER COLOR (R

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 18 3. Front Panel Function Control Description Adjusting the Screen ImageUse the butt

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 19 Do the following to adjust the display setting:1. To display the Main Menu, press

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 20 Main Menu ControlsAdjust the menu items shown below by using the up S and down T b

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 21 Control ExplanationUser Color Individual adjustments for red (R), green (G), and b

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 22 Control ExplanationFine Tune sharpens the focus by aligning text and/or graphics w

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 23 Control ExplanationOSD Position allows the user to move the OSD menus and control

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 24 4. Circuit Description A. AC-DC CONVERTER The power supply with a high-integrated

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 25 GREEN+ AI 34 Analog input from GREEN channel GREEN- AI 35 Analog input grou

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 26  Display & TCON/VIDEO-8 Port: 54 pins :LVDS+RSDS+TTLO :RSDS+TTLO :RSDS+TT

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 ii TABLE OF CONTENTS 1. Precautions and Safety Notices 12. Specification 43.

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 27 88 AB2N NC TECLKN ABLU [4]/T17 ABLU [4] 89 AB1P NC TECP ABLU [3]/T18 ABLU

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 28  TMDS: 18 pins Name I/O Pin No Description Note TMDS_TST/ PWM1 AIO 9 T

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 29 DDCSDA / TCON [1] / PWM1 / BBLU [0] IO 47 DDC serial control I/F data input / out

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 30 • Support external counters/timers, 1 & 2 • Single/double frequency clock outpu

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 31 5. Adjustment Procedure 1. Function test 1.1 products: 19” LCD Monitor 1.2 test equ

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 32

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 33

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 34 1. DDC Key In Procedure Note: After having assembled the monitor, please do the DD

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 35 1.2 Setup Procedure 1.2.1 Open computer’s box cover, plug D8330 CORD in PCI slot, c

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 36

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 1 1. Precautions and Safety Notices 1. Please carefully read this manual before opera

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 37

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 38

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 39 1.4.0 DDC Key In Procedure Step 1 select and execute DDC Key In program (wi

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 40 Step 2 Load DDC source file Step2.1 Choose “File “menu, click “Model Edit “butto

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 41 Step2.2 Press “Brower” button set current DDC_LOAD_FILE working path

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 42 Step2.3 click “working Model”, select Model in list box Step3 Double cli

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 43 Step 4 Checking Methods Step5.1 exit “winddc.exe”, take RS232-VGA cable out of th

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 44 Step4.2Select and click the “EDIDW2K.EXE “file, the EDID information will show on t

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 45 Setp4.3 Check the DDC

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 46 Packing For Shipping and Disassembly Procedure 1. Take off the cover of the Bracke

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 2 Handing and Placing methods Correct methods Incorrect methods Only touch the metal

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 47 3.Take off the three screws from the housing 4. Remove the housing

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 48 5. Take off the Two Speakers 6.Pull off the cables which can fix up the speakers

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 49 8. Take out the screws from the key board 9.take off the AL foil (4pcs)from the

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 50 11 Take out the AL foil which connecter the power board and main board 11. Tear of

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 51 12 Take out the power board connector and lamp wire 13. Unscrew screws from the

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 52 14. Unscrew screws from the main board and take off the screws 15. Unscrew the si

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 53 16. Take off the bezel

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 54 17. Unscrew the screws(4pcs) from the frame and then take off the frame

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 55 6. Troubleshooting Flow Chart Main Procedure StartConnect all of devices tothe LCD

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 56 Is backlight on?Display PerformanceO.K.?Function AdjustmentO.K.?Audio Function O.K.

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 3 The panel is placed facedown the lap,that may cause "mura"

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 57 A. Power Circuit Troubleshooting StartChange AC/DC AdapterRetry PowerOnChange M

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 58 B. Backlight Troubleshooting StartChangeInverter andRetryNo Trouble FoundEndEndEn

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 59 C. Performance Troubleshooting StartScreen isflickering?Change VGACableChange M

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 60 2Screen with noise or linebar?Prss Reset Button fromfront panel controlEndChange Ma

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 61 D. Function Troubleshooting StartControl Menu notFunctioning?ChangeControl Boarda

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 62 E. Audio Troubleshooting StartMake sure sound output, Audiocable is OK.No SoundCh

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 63 7. Recommended Spare Parts List ViewSonic Model Number: VS11369Serial No. Prefix

ViewSonic Model Number: VS11369Rev: 1aSerial No. Prefix: QB9Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty1 N/A E015-0

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty80 N/AM155223008401SCREW STD 十/ P HEAD Φ3.0* L8mm NICKEL3 .81 N/AM1552230

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 66 8. Exploded Diagram and Exploded Parts List ViewSonic Model Number: VS11369Rev:

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 4 2. Specification Introduction 1 LCD PANEL (1st source) Panel: Size Pixe

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 67 ViewSonic Model Number: VS11369Rev: 1aItem ViewSonic P/N Ref. P/N Location Q&apo

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 68 9. Block Diagram AnalogRGBColockGENPanelInterfaceTripleADCInterfaceHostInterfaceE

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 69 10. Schematic Diagrams ModelTitleDate Rev:ViewSonic Corporation40mil 40milPANEL PO

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 70 ModelTitleDate Rev:ViewSonic CorporationLED-1LED-2UPDOWNMENUMUTEEXITPOWERMUTEUPDOW

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 71 ModelTitleDate Rev:ViewSonic CorporationEVOLUME3STBY35DVCC3DGNDAGND5VA5VAAGNDAGNDA

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 72 ModelTitleDate Rev:ViewSonic CorporationClosed to MCUDGNDMCU_RESETMCU_VCCMCU_VCCII

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 73 ModelTitleDate Rev:ViewSonic CorporationClosed to ScalerDDC1_SDADDC1_SCLXOXIRX2PRX

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 74 ModelTitleDate Rev:ViewSonic CorporationClosed to connectorClosed to connectorClos

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 75 11. PCB Layout Diagrams

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 76

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 5 Power 7 POWER Voltage Consumption Typ/Max AC 100-240V (Universal); 50-60 Hz 32

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 77

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 78

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 79

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 80

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 81

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 82 * Reader’s Response* Dear Readers: Thank you in advance for your feedback on our S

ViewSonic Corporation Confidential - Do Not Copy VG921m-4 6 Packing (W x H x D) 497 mm (W) x 516 mm (H) x 158 mm (D) 19.6" (W) x 20.3"