ViewSonic VS11419 Service Manual

ViewSonic VG1930wm-3 Model No. VS11419 19” Color TFT LCD Display (VG1930wm-3_SM Rev. 1a Jan. 2007) Service Manual

7 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 2.2 GENERAL specification Test Resolution & Frequency “1440 X900” @ 60Hz Test

8 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Power Supply Cold Start Shall start and function properly when under full load, wi

9 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 2.5 ELECTRICAL REQUIREMENT Horizontal / Vertical Frequency Horizontal Frequency 30

10 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 29 1280 x 1024 @ 60 Hz, 64 KHz 　 　 　 　 DMT 30 1280 x 1024 @ 75 Hz, 80

11 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 2.6 FRONT PANEL CONTROLS AND INDICATORS Front Panel Hardware Controls Power Switc

12 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 "(1), & (▲)" again for 10 seconds. Note1: When the OSD is locked wi

13 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 0-Touch™ Function Actions 1. Execute Auto Image Adjust when new mode detected, an

14 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 TFT LCD PANEL 1st Source Panel Model number CMO M190A1-L02 Type Active Matri

3. Front Panel Function Control Description 15 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Adjusting the Screen ImageMain Menuwi

16 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Do the following to adjust the display setting:1. To display the Main Menu, pre

Copyright Copyright © 2007 by ViewSonic Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, s

17 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Main Menu ControlsAdjust the menu items shown below by using the up S and down T

18 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Control Explanation9300K-Adds blue to the screen image for cooler white (used

19 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Control ExplanationH. Size (Horizontal Size) adjusts the width of the screen i

20 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Control ExplanationResolution Notice allows the user to enable or disable this

4. Circuit Description The TSUM56AL is total solution graphics processing IC for LCD monitors with panel resolutions up to SXGA. It is configured with

Analog EDID Time: 15:51:56 Date: Mon Oct 23, 2006 _____________________________________________

(23) Display Gamma ________________________________ = 2.20 (24) Power Management and Supported Feature(s): Active Off/Very Low Po

Active Time: 1440 pixels Blanking Time: 464 pixels Sync Offset: 80 pixels Sync Pulse Width: 152 pixels

Digital EDID Time: 15:52:31 Date: Mon Oct 23, 2006 VIEWSONIC CORPORATIO

Active Off/Very Low Power, Standard Default Color Space, Preferred Timing Mode Display Type = R/G/B Color (25-34) CHROMA

TABLE OF CONTENTS 1. Precautions and Safety Notices 1 2. Specification 5 3. Front Panel Function Control Description 15 4. Circuit Descripti

Sync Offset: 80 pixels Sync Pulse Width: 152 pixels Border: 0 pixels Frequency: 55.93 KHz Vertical:

5. Adjustment Procedure Function Test and Alignment Procedure 1. All Modes Reset You should do “All Model Reset” (Refer to Chap 3. Hot Keys for Functi

9. White Box Test Signal: 1400*900@60HzTest Pattern: Window standard pattern Inspection Item: Particle, Line Defect, Power, Image Remain & Mura

15. Function Test Display pattern Item Pattern Description Remark 1 Gray_Scale_0-100_V Vertical 64 (256) Gray Scale (右→左，From 0 to 100% White) Figu

Figure 5 Figure 6 Figure 7 Figure 8 31 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

BIOS update procedure 1. To setup ISP environment Hardware: PC or Notebook , Parallel(Printer) cable , ISP tool( Fig 1) Software: ISP driver . If

2. Install ISP 2.1 User could download ISP driver and PORT95NT install file from Myson Century website (http://www.myson.com.tw/) 2.2 After extracti

2.4 Keep default setting or press “Change＂ button for selecting the path that you want , and then press“Next＂button to continue, see Fig 2.4. Fig

2.6 The Installer Information shows package warning, press “Ignore＂ button to continue, see Fig 2.6. Fig 2.6 2.7 Installation has finished, press

3. ISP security code 3.1 After installation, we could find the shortcut in the setting path or the program bar (default setting), see Fig 3.1. Fig

1. Precautions and Safety Notices 1. Appropriate Operation (1) Turn off the product before cleaning. (2) Use only a dry soft cloth when cleaning

3.3 The warning is used to remind user of that different CPU rate may cause ISP function fail(it is limited by IIC protocol), press “確定＂ button, see

3.5 At least 2 Command No of security code, see Fig 3.5, and different security code between hardware ISP and software ISP. The security code of softw

3.6 Fig 3.6 shows the setting for security code of hardware ISP, it needs 4 Command No, and key in command sequentially for 94, 94, AC, CA, 53. Fig

3.7 Fig 3.7 shows the setting for security code of software ISP, it needs 2 Command No, and key in command sequentially for 7C, 4C, 77. The Command

4. Use ISP to program MCU 4.1 Select MTV type first, load the binary or Intel hex file that you want to program into the MCU, and select “Auto＂ item,

5 Use ISP to read MCU content 5.1 Only software ISP could read the MCU content, it is according to program the boot code while coding. The limitation

5.2 If user uses hardware ISP to read MCU content, it shows as Fig 5.2. Fig 5.2 43 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

6 Re-entry the ISP Mode When you could not select or click ｀Reset MCU＇ button and enter ISP mode again, you refer the message as below: 44 Vie

Note: (1)Disable the ｀Enter ISP Mode＇ option to avoid the error message display. (2)If you using the MTV312M64 or before MCU serials, the MCU will

7. Boot code of ISP 7.1 Hardware ISP (1) Without boot code (2) Fixed security code: 94, 94, AC, CA, 53 (3) Attention to the pin of HSCL (1) and HSDA

bending/twisting forces may be applied to the TFT Module from outside. Otherwise the TFT Module may be damaged. (12) The cold cathode fluorescent lam

7.4 The followings show the relationship between the code and the security code. 47 ViewSonic Corporation Confidential - Do Not Copy VG1930wm

8. ISP Adaptor Schematic 9. Adaptor Linking The Monitor Set Connect with Printer Cable 25Pins to 25Pins PC/HOST Connect with VGA Cable 15Pins to 15P

Packing For Shipping And Disassembly Procedure Packing For Shipping 1. Packing Procedure 1.1 Paste protection film to protect the monitor. (Figure

1.5 Fold the right side PE bag to the back of monitor, and pull the PE bag’s opening mouse to the back of the monitor.(Figure5) 1.6 Take the left s

Monitor Assembly and Disassembly 1 Separate Stand Assy Step 1 : Separate the Stand Cover. Step 2 : Loose the Stand 4 Screws Step 3 : Completed.

2 Separate Bezel Step 1 : Loose Rear Cover 2 Screws. Step 2 : Separate the front Bezel hooks to take Bezel and Panel apart. Step 3: Separate the si

3 Remove Panel Step 1 : Disassemble 2 screws of bottom of panel and lift up Panel from Rear cover Step 2 : Remove 2 pieces Backlight Wires and A/D

4 Remove Power key Board and function key Board Step 1 :` Remove 2 pieces Wires of Power Key Board Step 2 :` Remove connect wire of Power Key

5 Separate Metal Cover Step1:` Loose all Screws of support plate and Metal Cover Step2:` Remove Support plate Step3:` Separate Metal Cover S

6 Remove Lips Board And A/D Board Step 1 : Loose 4 Screws of Lips Board Step 2 : Loose 3 Screws of A/D Board Step 3 : Completed 56 ViewSonic Corpo

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

7 Change Lips Board and A/D Board ` Step 1 : Place new A/D Board and fasten 4 screws (wihte-Left,red-Right) Step 2 : Assemble Lips Board Step 3 :

8 Assemble Metal Cover and Support plate Step 1 : Assemble Metal Cover Step 2 : Assemble Support plate Step 3 : Completed 58 ViewSonic Corporation

9 Assemble Power key Board and function key Board Step 2: Insert the wire of Power key Board Step 2: Place new Power key Board on Bezel hooks St

Step5: Insert the connect wire of Key Board Step6: Assemble Key Board of Bezel hooks Step7: Completed 60 ViewSonic Corporation Confidential - D

10 Assemble Panel Step 1 : Insert 1 piece of Backlight wires Step 4 : Completed. Insert another piece backlight wire of Lips Board Step 3 : Step 2

11 Assemble Bezel Step 1 : Place the rear cover and Assembly the right hooks of the Bezel first . Step 2 : Assemble Bezel hooks Bezel and Panel ap

Step2 : Assemble Hinge Cover Step 3: Completed. 63 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

6. Troubleshooting Flow Chart 64 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Defect Mode Failure Analysis Repair Testing F

65 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Defect Mode Failure Analysis Repair Testing Check PCBAPower on Display Abnor

66 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Failure Analysis Repair Testing Gray Scale Display Abnormal R.G.B Display

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

67 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Defect Mode Failure Analysis Repair Testing Horizontal Line Defect Vertical W

68 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Defect Mode Failure Analysis Repair Testing LED Off No PowerLED Dark LED Abno

69 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Defect Mode Failure Analysis Repair Testing Abnormal BIOS &OSD Check PCB

70 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Defect Mode Failure Analysis Repair Testing Display Shut Down Check PCBAChec

71 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Trouble Shooting Analysis Check the information in this section to see if the pro

7. Block Diagram 72 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 VSC VG1930wm-3 A/D Board BLOCK DIAGRAMINVERTERLVDS OUTPUTAC TO D

8. Schematic Diagrams 73 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 L0603 --> L0805Connect the net +5Vau & +5VAdd the ca

74 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 ModelTitleDate Rev:ViewSonic CorporationINPUTHDCP FUNCTION5GRHSIDVI5VVSIDATA2+DC

75 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 ModelTitleDate Rev:ViewSonic CorporationPANEL INTERFACEFOR 19" FSC PANELVCC_

76 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 ModelTitleDate Rev:ViewSonic CorporationPOWER (DC TO DC)Recommond to used "B

5 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 2. Specification Introductions FEATURES VG1930wm-3 Size 19 “W Luminance (Typ) 300

77 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 ModelTitleDate Rev:ViewSonic CorporationSCALER-Swap the pinHDCP Key (288Bytes)HDC

78 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 9. PCB Layout Diagrams

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10. Exploded Diagram and Exploded Parts List 84 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 ViewSonic Model Number: VS11419R

85V iewSonic Corporation Confidential - Do Not Copy VG1930wm-3 ViewSonic Model Number: VS11419Rev: 1aItem ViewSonic P/N Ref. P/N Location Q&apos

11. Recommended Spare Parts List 86 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 ViewSonic Model Number: VS11419Rev: 1aSerial

6 ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3 Product definition and specification Product Name ViewSonic VG1930wm Oracle P/N

ViewSonic Model Number: VS11419Rev: 1aSerial No. Prefix: QC6ItemViewSonic P/N Ref. P/N Description Location Universal number#Q'ty1 DC-00008223 00

ItemViewSonic P/N Ref. P/N Description Location Universal number#Q'ty85 N/A 381-330-032554H NPO 33PF/25V +-5% 0603 SMD RoHS

89V iewSonic Corporation Confidential - Do Not Copy VG1930wm-3 * Reader’s Response* Dear Readers: Thank you in advance for your feedback on our