Service Manual ViewSonic VG1930wm-3 Model No. VS11419 19” Color TFT LCD Display (VG1930wm-3_SM Rev. 1a Jan.
Copyright Copyright © 2007 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.
TABLE OF CONTENTS 1. Precautions and Safety Notices 1 2. Specification 5 3. Front Panel Function Control Description 15 4. Circuit Description 21 5. Adjusting Procedure 28 6. Trouble Shooting Flow Chart 64 7. Block Diagrams 72 8. Schematic Diagrams 73 9. PCB Layout Diagrams 78 10. Exploded Diagram And Spare Parts List 84 11.
1. Precautions and Safety Notices 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 soft cloth soaked with mild detergent to clean the display housing. (4) Use only a high quality, safety approved AC/DC power cord. (5) Disconnect the power plug from the AC outlet if the product will not be used for a long period of time.
bending/twisting forces may be applied to the TFT Module from outside. Otherwise the TFT Module may be damaged. (12) The cold cathode fluorescent lamp in the LCD contains a small amount of mercury. Please follow local ordinances or regulations for disposal. (13) The LCD module contains a small amount of materials having no flammability grade. The LCD module should be supplied with power that complies with the requirements of Limited Power Source (IEC60950 or UL1950), or an exemption should be applied for.
Correct methods : Incorrect Methods : Only touch the metal-frame of the panel or the front Surface of the panel is pressed by fingers & this may cover of the monitor. cause “ MURA “ Do not touch the surface of the polarizer . Take out the monitor by grasping the LCD panel. Take out the monitor form carton. ViewSonic Corporation That may cause “ MURA“.
Correct methods : Incorrect Methods : Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects .
2. Specification Introductions FEATURES TFTLCD PANEL Input Signal Sync Compatibility Compatibility Power Voltage Power Consumption Audio Ergonomics OSD Control VG1930wm-3 Size 19 “W Luminance (Typ) 300 cd/㎡ Contrast Ratio (Typ) 700:1 Colors 16.2 M colors Response Time (Typ) 5 ms Viewing Angle (H/V) 150/130(degrees;type)@CR>10 Recommend resolution 1440 X 900 @60Hz Analog (75ohms, 0.7/1.
Product definition and specification Product Name ViewSonic VG1930wm Oracle P/N VG1930WM-3 Model Number OSD Languages VS11419 English, French, German, Italian, Spanish, Finnish, Japanese, Traditional Chinese, Simplified Chinese TFT LCD Panel and Model # CMO M190A1-L02 Scalar MST TSUM56AL-LF-1 Input Signal Analog x1 / Digital x1 Sync Compatibility Separate Sync / Composite Sync / SOG Adapter Internal Power Board Yes, refer to APPENDIX B: Power Cable Power Cable Analog Cable (1.
2.2 GENERAL specification Test Resolution & Frequency “1440 X900” @ 60Hz Test Image Size Full Size Contrast and Brightness Controls Factory Default: Contrast = 70%, Brightness = 100% 2.
Power Supply Cold Start Power Supply Transient Immunity Shall start and function properly when under full load, with all combinations of input voltage, input frequency, and operating temperature. Shall be able to withstand an ANSI/IEEE C62.41-1980 6000V 200 ampere ring wave transient test with no damage. Power Supply Line Surge Immunity Shall be able to withstand 1.5 times nominal line voltage for one cycle with no damage.
2.5 ELECTRICAL REQUIREMENT Horizontal / Vertical Frequency Horizontal Frequency 30 – 82 kHz Vertical Refresh Rate 56– 76 Hz. Maximum Pixel Clock 135 MHz Sync Polarity Independent of sync polarity Timing Table SOG Timing Composite Separated Item Digital - TMDS Analog Remark 1 640 x 350 @ 70 Hz, 31.5 KHz 2 640 x 400 @ 60 Hz, 31.5 KHz 3 640 x 400 @ 70 Hz, 31.5 KHz 4 640 x 480 @ 50 Hz, 24.7 KHz 5 640 x 480 @ 60 Hz, 31.
29 1280 x 1024 @ 60 Hz, 64 KHz DMT 30 1280 x 1024 @ 75 Hz, 80 KHz DMT 31 1440 x 900 @ 60 Hz 55.9 KHz DMT *1. Tolerance ≧ ±2KHz (if no overlapping issue) *2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message without blanking. *3. The image quality of 50Hz mode might be worse than 60Hz.
2.6 FRONT PANEL CONTROLS AND INDICATORS Front Panel Hardware Controls Power Switch (Front Head) Power Control, soft Power Switch. Power LED (Front Head) Blue – ON Orange – Power Saving Mode Dark = Soft Power Switch OFF Front Panel Controls (Head) ;X] Mute [ ] Power [ 1 ] BUTTON 1 [ 2 ] Button 2 [▲] UP ARROW BUTTON [▼] DOWN ARROW BUTTON [;X] [ 1 ] [▲] [▼] [ 2 ] [ ] Note: Power Button, Button 1 and Button 2 must be one-shot logic operation. (i.e.
"(1), & (▲)" again for 10 seconds. Note1: When the OSD is locked will lock all functions, including “Volume” and “Mute” Note 2: Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate “OSD Locked” Note 3: OSD Lock should not lock Power Button and Power Lock function Power Lock short cuts function for the buttons The power button lock will be activated by pressing the front panel control buttons "(1), & (▼)" for 10 seconds.
0-Touch™ Function Actions 1. Execute Auto Image Adjust when new mode detected, and save the settings to buffer for further use 2. It should be reset by Memory Recall function (Should not reset by power off, power unplug and others) OSD Auto Save The OSD shall save new settings when it is turned off by the user or when it times out.
TFT LCD PANEL 1st Source Panel Model number CMO M190A1-L02 Type Active Matrix TFT, TN technology Active Size 19” Wide (410.4mm x 256.5mm) Pixel Arrangement RGB Vertical Stripe Pixel Pitch 0.
3. Front Panel Function Control Description Adjusting the Screen Image Main Menu with OSD controls Front Control Panel shown below in detail Standby Power On/Off Power light Blue = ON Orange = Power Saving Audio Mute button turns the sound off Displays the Main Menu or exits the control screen and saves adjustments. Scrolls through menu options and adjusts the displayed control. Also a shortcut to display the Contrast adjustment control screen. Displays the control screen for the highlighted control.
Do the following to adjust the display setting: 1. To display the Main Menu, press button [1]. NOTE: All OSD menus and adjustment screens disappear automatically after about 15 seconds. This is adjustable through the OSD timeout setting in the setup menu. 2. To select a control to adjust, pressSorTto scroll up or down in the Main Menu. 3. After the desired control is selected, press button [2]. A control screen like the one shown below appears.
Main Menu Controls Adjust the menu items shown below by using the up S and down T buttons. Control Explanation Auto Image Adjust sizes and centers the screen image automatically. 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 toggles between inputs if you have more than one computer connected to the VG1930wm.
Control Explanation 9300K-Adds blue to the screen image for cooler white (used in most office settings with fluorescent lighting). 6500K-Adds red to the screen image for warmer white and richer red. 5400K-Adds green to the screen image for a darker color. 5000K-Adds blue and green to the screen image for a darker color. User Color Individual adjustments for red (R), green (G), and blue (B). 1. To select color (R, G or B) press button [2]. 2. To adjust selected color, pressSandT.
Control Explanation H. Size (Horizontal Size) adjusts the width of the screen image. H./V. Position (Horizontal/Vertical Position) moves the screen image left or right and up or down. Fine Tune sharpens the focus by aligning text and/or graphics with pixel boundaries. NOTE: Try Auto Image Adjust first. Sharpness adjusts the clarity and focus of the screen image. Setup Menu displays the menu shown below: Language Select allows the user to choose the language used in the menus and control screens.
Control Explanation Resolution Notice allows the user to enable or disable this notice. If you enable the Resolution Notice shown above and your computer is set at a resolution other than 1440 x 900, the following screen appears. OSD Position allows the user to move the OSD menus and control screens. OSD Timeout sets the length of time the OSD screen is displayed. For example, with a “30 second” setting, if a control is not pushed within 30 seconds, the display screen disappears.
4. Circuit Description The TSUM56AL is total solution graphics processing IC for LCD monitors with panel resolutions up to SXGA. It is configured with a high-speed integrated triple-ADC/PLL, an integrated DVI receiver, a high quality display processing engine, and an integrated output display interface that can support LVDS panel interface format.
Analog EDID Time: 15:51:56 Date: Mon Oct 23, 2006 ______________________________________________________________________ ______________________________________________________________________ VIEWSONIC CORPORATION EDID Version # 1, Revision # 3 DDCTest For: ViewSonic VG1930wm ______________________________________________________________________ ______________________________________________________________________ EDID Block 0, Bytes 0-127 128 BYTES OF EDID CODE: 0 1 2 3 4 5 6 7 8 9 ___________
(23) Display Gamma ________________________________ (24) Power Management and Supported Feature(s): = 2.20 Active Off/Very Low Power, Standard Default Color Space, Preferred Timing Mode Display Type = R/G/B Color (25-34) CHROMA INFO: Red X - 0.640 Green X - 0.286 Blue X - 0.154 White X - 0.313 Red Y - 0.334 Green Y - 0.599 Blue Y - 0.077 White Y - 0.
Active Time: 1440 pixels Blanking Time: 464 pixels Sync Offset: 80 pixels Sync Pulse Width: 152 pixels Border: 0 pixels Frequency: 55.93 KHz Vertical: Active Time: 900 lines Blanking Time: 34 lines Sync Offset: 3 lines Sync Pulse Width: 6 lines Border: 0 lines Frequency: 59.
Digital EDID Time: 15:52:31 Date: Mon Oct 23, 2006 VIEWSONIC CORPORATION EDID Version # 1, Revision # 3 DDCTest For: ViewSonic VG1930wm EDID Block 0, Bytes 0-127 128 BYTES OF EDID CODE: 0 1 2 3 4 5 6 7 8 9 ________________________________________ 0 | 00 FF FF FF FF FF FF 00 5A 63 10 | 1E 9D 01 01 01 01 01 10 01 03 20 | 80 29 1A 78 2E E5 B5 A3 55 49 30 | 99 27 13 50 54 BF EF 80 95 00 40 | 95 0F 81 80 81 40 71 4F 31 0A 50 | 01 01 01 01 9A 29 A0 D0 51 84 60 | 22 30 50 98 36 00 9A 00 11
Active Off/Very Low Power, Standard Default Color Space, Preferred Timing Mode Display Type = R/G/B Color (25-34) CHROMA INFO: Red X - 0.640 Green X - 0.286 Blue X - 0.154 White X - 0.313 Red Y - 0.334 Green Y - 0.599 Blue Y - 0.077 White Y - 0.
Sync Offset: 80 pixels Border: 0 pixels Sync Pulse Width: 152 pixels Frequency: 55.93 KHz Vertical: Active Time: 900 lines Blanking Time: 34 lines Sync Offset: 3 lines Sync Pulse Width: 6 lines Border: 0 lines Frequency: 59.
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 Function Controls) first. This action will allow you to erase all end-user’s settings and restore the factory defaults. 2. Auto Image Adjust The Auto Adjust is aimed to offer a best screen quality by built-in ASIC. For optimum screen quality, the user has to adjust each function manually. A.Turn the computer and LCD monitor on. B.
9. White Box Test Signal: 1400*900@60Hz Test Pattern: Window standard pattern Inspection Item: Particle, Line Defect, Power, Image Remain & Mura 10. Black Box Test Signal: 1400*900@60Hz Test Pattern: Window standard pattern Inspection Item: Bright Dot, Line Defect & Power 11. RED Test Signal: 1400*900@60Hz Test Pattern: Full Screen Red Inspection Item: Bright Dot, Partial & Line Defect 12.
15.
Figure 5 Figure 6 Figure 7 Figure 8 ViewSonic Corporation 31 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 the O.S. was Win2000 or Win XP please have to install PORT95NT.
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 extracting the zip file, the total files list as Fig 2.2, and double click the file of setup.exe to install. Fig 2.2 2.3 Press “Next＂ button to continue., see Fig 2.3 Fig 2.
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 2.4 2.5 Press “Install＂ button to continue, see Fig 2.5 Fig 2.
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 “Finish＂ button, see Fig 2.7. Fig 2.
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 3.1 2.2 Security file is a key to use ISP function, press “確定＂ button, see Fig 3.2. Fig 3.
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 Fig 3.3. Fig 3.3 2.4 Press“Create Security File＂ button to key in security code. Adjusting bar to decrease speed of IIC bus, see Fig 3.4. Fig 3.
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 software ISP is set by user while coding, but the security code of hardware ISP is set by Myson Century. Fig 3.
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.
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 No and command must be set by user while coding. About the detail of setting, please refer to Section 6 Boot code of ISP. Fig 3.
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, then press “RUN＂ button, see Fig 4.1. 4.2 If user changes the MTV type, it must load file again, or the buffer of load file will be cleared. 4.3 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.
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 is used for the security of customer＇s code. Select “Read Target＂ item, and press“RUN＂ button, the MCU content will show as Fig 5.1. Fig 5.
5.2 If user uses hardware ISP to read MCU content, it shows as Fig 5.2. Fig 5.
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: ViewSonic Corporation 44 Confidential - Do Not Copy VG1930wm-3
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 always in ｀ISP Mode＇even programming fail or erase MCU that instead of select or press ｀Reset MCU＇.
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 (1) should keep in enable (4) MTV412M, MTV512M, CS8954 support hardware ISP 7.2 Software ISP (1) With boot code (2) User define the security code (3) Attention to the pin of HSCL (1) and HSDA (1) should keep in enable (4) Only software ISP could read the MCU content (5) MTV212M, MTV312M, MTV230M, MTV412M, MTV512M, CS8954 support software ISP 7.
7.4 The followings show the relationship between the code and the security code.
8. ISP Adaptor Schematic 9.
Packing For Shipping And Disassembly Procedure Packing For Shipping 1. Packing Procedure 1.1 Paste protection film to protect the monitor. (Figure 1) 1.2 Put the monitor in the PE bag and cover the small PE bag on the stand. (Figure 2) Figure 1 Figure 2 1.3 Fold the left bottom of PE bag’s opening mouth to the back of the monitor. (Figure 3) 1.4 Take the left side cushion and fix it onto the left side of the monitor.
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 side cushion and fix it onto the left side of the monitor.( Figure 6) Figure 5 Figure6 1.7 Put the monitor into the carton, panel screen should face to carton handle side, as last, close the carton.
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 side hooks of Bezel to take Bezel and Rear Cover apart. Step 4 : Completed.
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 Board connect Wire. Step3 : Completed.
4 Remove Power key Board and function key Board Step 1 :` Remove 2 pieces Wires of Board Step 2 :` Remove connect wire of Step 3 :` Remove Wire of Power Key Power Key Board Power Key Board Step4: Completed.
5 Separate Metal Cover Step1:` Loose all Screws of support plate and Metal Cover Step2:` Remove Support plate Step3:` Separate Metal Cover Step4:` Completed.
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 ViewSonic Corporation 56 Confidential - Do Not Copy VG1930wm-3
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 : Completed ViewSonic Corporation 57 Confidential - Do Not Copy VG1930wm-3
8 Assemble Metal Cover and Support plate Step 1 : Assemble Metal Cover Step 2 : Assemble Support plate Step 3 : Completed ViewSonic Corporation 58 Confidential - Do Not Copy VG1930wm-3
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 Step 3: Insert 2 pieces Audio wires of Power Key Board Step 4: Insert connect wire of Power Key Board ViewSonic Corporation 59 Confidential - Do Not Copy VG1930wm-3
Step5: Insert the connect wire of Key Board Step6: Assemble Key Board of Bezel hooks Step7: Completed ViewSonic Corporation 60 Confidential - Do Not Copy VG1930wm-3
10 Assemble Panel Step 1 : Insert 1 piece of Backlight wires Step 2 : Insert Wires of A/D Board Step 3 : Insert another piece backlight wire of Lips Board Step 4 : Completed.
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 apart. Step 3 : Completed.
Step2 : Assemble Hinge Cover Step 3: Completed.
6.
Defect Mode Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair A Display Noise Power on Check PCBA Display AD/B Change LIPS Change Abnormal Flicker CNT/B Change Beat Display Flicker Check Panel Panel Change Beat Display Shut Down AD/B Change Display Wave Check PCBA LIPS Change CNT/B Change No Backlight Check Panel Panel Change Check LIPS LIPS Change Next Step NG B ViewSonic Corporation TEST Completed 65 Confidential - Do Not Copy VG1930wm-3
Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair B Display White Out Check PCBA AD/B Change LIPS Change Booting Delay Check PCBA Brightness AD/B Change Even Abnormal LIPS Change Check PCBA Beat Display No Backlight Check Panel Check LIPS Panel Change LIPS Change No signal AD/B Change R.G.
Defect Mode Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair C Horizontal Line Defect Vertical Weak Line Check PCBA AD/B Change Check Panel Panel Change Horizontal Weak Line Vertical Band Defect Horizontal Band Defect Power Saving Display Check PCBA AD/B Change Abnormal AD/B Change Peculiar Smell Check PCBA LIPS Change Next Step NG TEST Complete ViewSonic Corporation 67 Confidential - Do Not Copy VG1930wm-3
Defect Mode Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair AD/B Change LIPS Change Power ON/OFF No Power Abnormal Turn Off Check PCBA CNT/B Change Check PCBA LED/B Change Abnormal Check Wire Check LIPS CNT/B Cable LIPS Change AD/B Change LED Display Abnormal LED Off Check PCBA LIPS Change LED Dark LED/B Change LED Abnormal LED Loss Check Wire CNT/B Cable LED Flicker LIPS Change Next Step NG TEST Completed ViewSonic Corporation 68 Confidenti
Defect Mode Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair Abnormal BIOS OSD Key &OSD AD/B Change Unavailable CNT/B Change OSD Can’t Input Check PCB LIPS Change OSD Can’t Read OSD No CNT/B cable Display Check Wire OSD Jiggle VGA cable DVI cable OSD Display Abnormal Abnormal LVDS cable Check BIOS BIOS Update AD/B Change Voice Loss Loudspeaker CNT/B Change Abnormal Loud LIPS Change Check PCBA L/R Abnormal Check Wire No Voice L/R Same C/B Cable
Defect Mode Failure Analysis Repair Testing ※ “ Panel Change” Should be Performed to Level 3 Repair Other Abnormal Display Display Shut Check PCBA Down AD/B Change LIPS Change CNT/B Change Check Panel Display Flicker Check PCBA ((tapping ) AD/B Change CNT/B Change Check Panel DVI Signal Panel Change Check PCB Panel Change AD/B Change Display Abnormal Check EDID Code Next Step EDID Update NG TEST Complete ViewSonic Corporation 70 Confidential - Do Not Copy VG1930wm-3
Trouble Shooting Analysis Check the information in this section to see if the problems can be solved before requesting repair. Note： The consumers are only allowed to solve the problems described as below. Any unauthorized product modification, or failure to follow instructions supplied with the product will end the warranty immediately. z No image Make sure power button is ON. Check whether the LCD monitor and computer power cords are plugged and whether there is a supply of power.
ViewSonic Corporation VCC3.3 VLCD VCC1.8 +5V +12V DVI5V DVI5V VGA5V VGA5V 3.INPUT VCTRL INVERTER 5.POWER VLCD VCC1.8 VCC3.3 +12V on_Panel VGA5V Adj_BACKLIGHT on_BACKLIGHT +5V DVI5V B02 VGA5V DVI5V B03 B+ BG+ GR+ RCLK+ CLK- B+ BG+ GR+ RCLK+ CLK- BACKLIGHT CONTROL 6.
8. Schematic Diagrams CN2 SCJ-0356M5(B) CN13 1 2 3 4 5 U_GND 3 2 1 +5Vau +5Vau +12V 6 PITCH 2.0 180度 +5V FB10 1 220uF/16V/NC Vau 120 OHM BEAD I O U11 2 U_GND G 3 + TC23 Connect the net +5Vau & +5V C1 UTC7805/NC 0.
0.047uF C7 0.047uF R R21 56Ω 1/16W C8 0.047uF R22 470Ω 1/16W C9 1000pF CN6 DB15 R25 R_GND R28 100Ω 1/16W C12 0.047uF B_GND VGA5V VGA5V HPDVGA D2 BAV99 3 B D3 BAV99 D1 BAV99 R29 C13 0.1uF 0.1uF C14 C15 GIN 7 RIN 7 GNDB 7 GNDG 7 GNDR 7 +5V VGA5V 6 0.1uF 0/1K D4 16 17 R24 G 2 15 G_GND 1 14 SCL_A 0.047uF 2 VSI 0.
VLCD JP1 R60 VCC_TEST&ODCTRL 7 PA[0..9] 7 PB[0..9] PA[0..9] PB[0..
VCC1.8 VCC1.8 7 +5V CN10 +5V R67 10 9 8 7 6 5 4 3 2 1 10K BL_ON BL_ADJ +5V BL_ON R68 C38 MLB-201209-0220P-N2 C85 + TC20 220uF/16V Q5 MMBT3904L R70 1 0.1uF/NC 0.1uF 0/NC VCTRL 7 R69 10K 3 L10 L1206 2 2 1 R71 50 4K7 on_BACKLIGHT 7 + TC9 HEADER5X2 4.7uF/50V +5V +5V C F1 24V/5A/NC B +12V L11 L1206 1 2 DIP MLB-201209-0220P-N2/NC +12V 3 TC21 220uF/16V/NC R73 R72 C86 + 1N4148 1K D26 10K Q6 R76 CHT2907 2K E F2 24V/5A/DIP/NC D25 1N4148 0.
VDDC VCC3.3 VCC5V R90 R91 4 SDA_D 4 SCL_D R88 R89 10K 10K 3 4 6 7 9 10 12 13 100 1 4 B+ 4 B4 G+ 4 G4 R+ 4 R4 CLK+ 4 CLK- 100 100 R92 AVDD 390 1% 15 C58 1uF REFP 25 REFM 8 7 3 4 0.1uF TC19 VDD HOLD# WP# VSS SDO CE# SCK SDI 2 1 6 5 37 38 39 40 84 R107 SDO SCZ SCK SDI PM25LV010 10uF/16V RST C63 0.22uF 10K C64 22pF C65 22pF 96 X1 14.
9.
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10. Exploded Diagram and Exploded Parts List EXPLODED PARTS LIST (VG1930WM-3) ViewSonic Model Number: VS11419 Rev: 1a Serial No. Prefix: QC6 ViewSonic Corporation Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 84 Confidential - Do Not Copy VG1930wm-3 ViewSonic P/N C-00008270 N/A CB-00008111 HW-00008085 N/A B-00008270 N/A C-00008271 PL-00008091 CB-00008115 N/A B-00008269 HW-00008084 HW-00008086 B-00008272 N/A B-00008271 N/A N/A C-00008272 PL-00008090 N/A Ref.
PACKING PART LIST ( VG1930WM-3 ) ViewSonic Model Number: VS11419 Rev: 1a Item ViewSonic P/N Ref.
11. Recommended Spare Parts List RECOMMENDED SPARE PARTS LIST (VG1930WM-3) Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 19 20 21 22 23 24 25 26 27 28 29 30 ViewSonic Model Number: VS11419 Rev: 1a Serial No. Prefix: QC6 Description Power Cord (U.
Item 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 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 ViewSonic Model Number: VS11419 Rev: 1a Serial No.
Item 85 86 87 ViewSonic P/N N/A N/A N/A Ref.
* Reader’s Response* Dear Readers: Thank you in advance for your feedback on our Service Manual, which allows continuous improvement of our products. We would appreciate your completion of the Assessment Matrix below, for return to ViewSonic Corporation. Assessment A. What do you think about the content of this Service Manual? Unit Excellent Good Fair Bad 1. Precautions and Safety Notices 2. Specification 3. Front Panel Function Control Description 4. Circuit Description 5. Adjustment Procedure 6.
