Viewsonic VG1930wm-3 Service Manual

Service Manual

ViewSonic VG1930wm-3

Model No. VS11419

19” Color TFT LCD Display

(VG1930wm-3_SM Rev. 1a Jan. 2007)

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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.

Disclaimer

ViewSonic makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose. Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes.

Trademarks

Optiquest is a registered trademark of ViewSonic Corporation. ViewSonic is a registered trademark of ViewSonic Corporation. All other trademarks used within this document are the property of their respective owners.

Revision History

Revision SM Editing Date ECR Number Description of Changes Editor

1a 1/12/2007 Initial Release Jamie Chang

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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. Recommended Spare Parts List 86

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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.

(6) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off.

(7) Do not touch the LCD panel surface with sharp or hard objects.

(8) Do not place heavy objects on the LCD display, video cable, or power cord.

(9) Do not use abrasive cleaners, waxes or solvents for your cleaning.

(10) Do not operate the product under the following conditions:

- Extremely hot, cold or humid environment.

- Areas containing excessive dust and dirt.

- Near any appliance generating a strong magnetic field.

- In direct sunlight.

2. Caution

No modification of any circuit should be attempted. Service work should only be performed after you are thoroughly

familiar with all of the following safety checks and servicing guidelines.

3. Safety Check

Care should be taken while servicing this LCD display. Because of the high voltage used in the inverter circuit, the voltage is

exposed in such areas as the associated transformer circuits.

4. LCD Module Handling Precautions

4.1 Handling Precautions

(1) Since front polarizer is easily damaged, pay attention not to scratch it.

(2) Be sure to turn off power supply when connecting or disconnecting input connector.

(3) Wipe off water drops immediately. Long contact with water may cause discoloration or spots.

(4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.

(5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard surface.

(6) Since CMOS LSI is used in this module, take care of static electricity and ensure human earth when handling.

(7) Do not open or modify the Module Assembly.

(8) Do not press the reflector sheet at the back of the module in any direction.

(9) In the event that a Module must be put back into the packing container slot after it was taken out of the container, do

not press the center of the CCFL Reflector edge. Instead, press at the far ends of the CFL Reflector edge softly.

Otherwise the TFT Module may be damaged.

(10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate or tilt the Interface Connector of

the TFT Module.

(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist or bend the

TFT Module even momentarily. When designing the enclosure, it should be taken into consideration that no

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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.

(14) The LCD module is designed so that the CCFL in it is supplied by a Limited Current Circuit (IEC60950 or

UL1950). Do not connect the CCFL to a Hazardous Voltage Circuit

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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 polarizer .

Surface of the panel is pressed by fingers & this may

cause “ MURA “

Take out the monitor form carton.

Take out the monitor by grasping the LCD panel.

That may cause “ MURA“.

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Correct methods : Incorrect Methods :

Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects .

That could scratch the surface of panel

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2. Specification

Introductions

FEATURES VG1930wm-3

Size 19 “W

Luminance (Typ)

Contrast Ratio (Typ) 700:1

TFTLCD PANEL

Input Signal

Sync Compatibility

Compatibility

Power Voltage AC 100-240V, 50/60Hz Yes

Power Consumption

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, 0.7/1.0 Vp-p) Yes

Digital Yes

Separate Sync Yes

Composite Sync Yes

Sync on Green Yes

PC Yes

Power Mac Yes

TV Box (NextVision 6) No

On Mode(Max / Typ) 36 W

Active Off Mode (Max)

300 cd/㎡

＜2 W

Audio W 1.5w X 2

Tilt -5 ° ~ 20 °

Ergonomics

OSD Control [ ] [ 1 ] [ 2 ] [▲] [▼] [; X] Yes

Dimension

Weight

Operating Condition

Storage Condition

Swivel ( -xx ° - xx °) 360

Pivot ( XX ° - XX °) No

Height Adjust ( XX-XX mm) 0-80mm

Physical (W x H x D)

Package (W x H x D)

Physical (lbs / Kg) 5.5 Kg (12.13 lbs)

Package (lbs / Kg) 7.3 Kg (16.10 lbs)

Temperature (℉/℃)

Humidity (%) 10% to 90% (no condensation)

Temperature (℉/℃)

Humidity (%) 10% to 90% (no condensation)

460 mm (W) x 434 mm (H) x 230 mm (D)

18.1" (W) x 17.1" (H) x 9.1" (D)

560 mm (W) x 525 mm (H) x 282 mm (D)

22" (W) x 20.7" (H) x 11.1" (D)

32°F to 104°F (0°C to 40°C)

-4°F to 140°F (-20°C to 60°C)　

UL, CUL, FCC-B (ICES), CB, CE, TCO'03, ICES-003B, ISO13406-2, TUV/GS, TUV ERGO(covers ISO13406-2 &

Regulation

MPRII), TUV-S, VCCI, NOM, GOST-R, HYGIENIC (20 copies), ENERGY, Energy Star, CCC, BSMI, PSB,

C-TICK, KTL/MIC, SASO, WEEE, RoHS

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Product definition and specification

Product Name ViewSonic VG1930wm

Oracle P/N VG1930WM-3

Model Number VS11419

English, French, German, Italian, Spanish,

OSD Languages

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

Power Cable

nalog Cable (1.8 m, black), with PC 2001 and

refer to APPENDIX B: Power Cable

Yes ,

Yes

Hot Plug Detect &DDC

(Detached cable; refer the Appendix A)

DVI-D Cable(1.8m, black) with PC 2001 For Region code = P/A/J/K/S units only

Audio Cable(1.8m, black) with PC 2001 Yes

MIC Cable(1.8m, black) with PC 2001 No

USB Cable (V2.0) No

ViewSonic CD Wizard

Arabic, English, Finnish, Spanish,

German, Italian, Japanese, Swedish,

Polish, Korean, Portuguese, Russian,

ViewSonic Quick Start Guide

Turkish , French, Czech, Hungarian,

Simplified Chinese, Traditional Chinese

PerfectSuite CD No

Screen Protector Mylar Yes

Foot Protector plastic No

Service Insert For Region code = M units only

Warranty Sticker For Region code = G units only

Warranty Card For Region code = G units only Carton Sticker For Region code = G units only PE bag of Carton For Region code = G units only

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2.2 GENERAL specification

Test Resolution & Frequency “1440 X900” @ 60Hz

Test Image Size Full Size

Contrast and Brightness Controls

Contrast = 70%, Brightness = 100%

Factory Default:

2.3 VIDEO INTERFACE

Input Connector(refer the appendix A) Analog : D-sub 15 ,

Digital: DVI-D

Default Input Connector

Defaults to the first detected input

Equal to twice the weight of the monitor for five

Video Cable Strain Relief

minutes

Video Cable Connector DB-15 Pin out

Refer to Appendix A; Compliant DDC/CI

Video RGB (Analog)

Video Signals

Separate Sync / Composite Sync / SOG

TMDS (Digital)

Video Impedance

Maximum PC Video Signal

Maximum Mac Video Signal

75 Ohms (Analog), 100 Ohms (Digital)

950 mV with no damage to monitor

1250 mV with no damage to monitor

Sync Signals TTL

DDC 1/2B

Sync Compatibility

Compliant with version 1.1

Separate Sync / Composite Sync / SOG

Shall be compatible with all PC type computers,

Video Compatibility

Macintosh computers, and after market video cards

Resolution Compatibility

Exclusions

Refer to Segment 4-5

Not compatible with interlaced video

2.4 POWER SUPPLY

Internal Power Supply

Input Voltage Range

Input Frequency Range

Short Circuit Protection

Over Current Protection

Leakage Current

Efficiency(at 115VAC Full Load)

Fuse

Power Dissipation

Max Input AC Current

Inrush Current (Cold Start)

Mirage 860-AB0-190DTLB-PVH

90 to 264 VAC

47 to 63 Hertz

Output can be shorted without damage

5A typical at 14.0 VDC

3.5mA (Max) at 254VAC / 60Hz

Typical: 80%

Minimum: 75% Internal and not user replaceable

39 Watts (typ) / 49.2W (max)

1.5 Arms @ 90VAC, 0.75 Arms @180VAC

50 A (max) @ 115VAC 90 A (max) @ 230VAC

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Power Supply Cold Start

Power Supply Transient Immunity

Power Supply Line Surge 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.

Shall be able to withstand 1.5 times nominal line

voltage for one cycle with no damage.

Shall be able to function properly, without reset or

Power Supply Missing Cycle Immunity

Power Supply Acoustics

Power Saving Operation(Method)

Power Consumption

Recovery Time

visible screen artifacts, when ½ cycle of AC power is

randomly missing at nominal input.

The power supply shall not produce audible noise that

would be detectable by the user. Audible shall

defined to be in compliance with ISO 7779 (DIN

EN27779:1991) Noise measurements of machines

acoustics. Power Switch noise shall not be

considered.

VESA DPMS Signaling

Power

Mode LED

Consumption

On Blue 34W (typ)

36W (max)

Active off Amber <2W

Off Off <1W

ON Mode = N/A, ACTIVE OFF < 3 sec

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2.5 ELECTRICAL REQUIREMENT

Horizontal / Vertical Frequency

Horizontal Frequency

Vertical Refresh Rate

30 – 82 kHz

56– 76 Hz.

Maximum Pixel Clock

Sync Polarity

135 MHz

Independent of sync polarity

Timing Table

Analog

Composite

Separated

Item Timing

1 640 x 350 @ 70 Hz, 31.5 KHz 　　　　 DMT

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, 31.5 KHz 　　　　 DMT

6 640 x 480 @ 67 Hz, 35 KHz 　　　　 For MAC

7 640 x 480 @ 72 Hz, 37.9 KHz 　　　　 DMT

8 640 x 480 @ 75 Hz, 37.5 KHz 　　　　 DMT

Digital - TMDS

SOG

Remark

9 720 x 400 @ 70 Hz, 31.5 KHz 　　　　

10 720 x 480 @ 60 Hz, 31.5 KHz 　 DTV

11 720 x 576 @ 50 Hz, 31.3 KHz 　 DTV

12 800 x 600 @ 56 Hz, 35.1 KHz 　　　　 DMT

13 800 x 600 @ 60 Hz, 37.9 KHz 　　　　 DMT

14 800 x 600 @ 72 Hz, 48.1 KHz 　　　　 DMT

15 800 x 600 @ 75 Hz, 46.9 KHz 　　　　 DMT

16 832 x 624 @ 75 Hz, 49.7 KHz 　　　　 MAC

17 1024 x 768 @ 60 Hz, 48.4 KHz 　　　　 DMT

18 1024 x 768 @ 70 Hz, 56.5 KHz 　　　　 DMT

19 1024 x 768 @ 75 Hz, 60 KHz 　　　　 DMT

20 1152 x 864 @ 75 Hz, 67.5 KHz 　　　　 DMT

21 1152 x 870 @ 75 Hz, 68.7 KHz 　　　　 For MAC

22 1152 x 900 @ 67 Hz, 62.5 KHz 　　　　 For SUN

23 1280 x 720 @ 50 Hz, 37.5 KHz 　 DTV

24 1280 x 720 @ 60 Hz, 45 KHz 　 DTV

25 1280 x 768 @ 60 Hz, 47.8 KHz 　　　　 DMT;

26 1280 x 768 @ 75 Hz, 60.3 KHz 　　　　 DMT;

27 1280 x 960 @ 60 Hz, 59.7 KHz 　　　　 DMT

28 1280 x 960 @ 75 Hz, 75.2 KHz 　　　　

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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.

Primary Presets

1440x900 @ 60Hz

User Presets

Number of User Presets (recognized timings) Available: 10 presets total in FIFO configuration

Changing Modes

● Maximum Mode Change Blank Time for image stability : 5 seconds (Max), excluding “Auto

Adjust” time

● Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory setting when

execute “Auto Adjust”

● The monitor needs to do “Auto Adjust” the first time a new mode is detected

(see section “0-Touch™ Function Actions”)

● While running Change Mode, Auto Adjust or Memory Recall, the image shall blank

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2.6 FRONT PANEL CONTROLS AND INDICATORS

Front Panel Hardware Controls

Power Switch (Front Head)

Power LED (Front Head)

Front Panel Controls (Head)

[;X] [ 1 ] [▲] [▼] [ 2 ] [

Reaction Time

]

Power Control, soft Power Switch.

Blue – ON

Orange – Power Saving Mode

Dark = Soft Power Switch OFF

;X] Mute

[ ] Power [ 1 ] BUTTON 1 [ 2 ] Button 2 [▲] UP ARROW BUTTON

[▼] DOWN ARROW BUTTON

Note: Power Button, Button 1 and Button 2 must be

one-shot logic operation. (i.e. there should be no

cycling)

OSD must fully appear within 0.5s after pushing Button

Short Cuts Function from the button(s)

[2] Input toggle (Analog or Digital; refer to Appendix D)

[▼] or [▲] Brightness/Contrast adjust

[▼]+ [▲] recall both of Contrast and Brightness to default

[1] + [2] toggle 720x400 and 640x400 mode when input 720x400 or

640x400 mode (70Hz only)

[1] + [▼] + [▲] White Balance. (Not shown on user’s guide)

[1] + [▼] Power Lock

[1] + [▲] OSD Lock

No signal + [2] + [ ] Burning mode

Signal + [2] + [ ] Factory Mode

Remark : All the short cuts function are only available while OSD off

Function descriptions

Main Menu Controls

The Main Menu OSD includes most of control functions.

Please refer to APPENDIX C (Main Menu OSD Table) for the detail.

OSD Lock short cuts function for the buttons

The OSD lock will be activated by pressing the front panel control buttons "(1), & (▲)"

for 10 seconds. If the user then tries to access the OSD by pressing any of the buttons

"1", "▼", "▲", "2" a message will appear on the screen for 3 seconds showing "OSD

Locked". The OSD lock will be deactivated by pressing the front panel control buttons

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"(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. Locking the power button means that the user won't be able to

turn off the LCD while the power button is locked. If the user presses the power button

while it is locked, a message will appear on the screen for 3 seconds showing "Power

Button Locked". It also means that with the power button locked, the LCD would

automatically turn back "On" when power is restored after a power failure. If the power

button is not in the locked mode, then power should return to it's previous state when

power is restored after a power failure. The power button lock will be deactivated by

pressing the front panel control buttons "(1), & (▼)" again for 10 seconds.

Note 1: Status bar indicating Power Button lock or unlock is in progress and when

complete it will indicate “Power Button Locked”

Note 2: Power should only be lockable in the “On State”

Memory Recall Actions

Memory Recall action on the analog and digital mode as below

1. Recall white balance to factory setting

2. Set the factory defaults as shown in Section 4-8

3. Clean all the mode setting buffer

4. Execute Auto Image Adjust

Note: Memory Recall should have no effect for Language, Power Lock, User Color

Settings or Input Priority

Input Signal Notice Actions

1. The Input Signal Notice OSD appears 3 seconds when power turns on or change

input signal.

2. The Input Signal Notice OSD position is on the right-bottom side of image. And the

OSD background shall be transparent. (OSD Background = off).

Resolution Notice Actions

1. Resolution Notice OSD should show on screen after changing to non-native mode

for 30 sec

2. For auto input select function, it shall meet the requirement in Appendix D.

3. The OSD should disappear after 10 sec or by pushing button [1] or [2]

Resolution Notice function should be disabled when push button [2] under Resolution

Notice OSD

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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.

There shall not be a separate save

Factory Defaults

Item Defaults Item Defaults

Contrast 70% Input Priority N/A

Brightness 100% Resolution Notice On

Color Temperature 6500K Volume 50%

Sharpness 100% Balance N/A

OSD H. Position 50% Treble N/A

OSD V. Position 50% Bass N/A

OSD Time Out 15 720x400 / 640x400 720x400 OSD Background On

2.7 AUDIO INTERFACE (SPEAKER SPECIFICATION)

Line input connection 3.5 mm stereo jack

Line input signal 1.0 Vrms

Line input impedance 10 kOhm

Maximum power output (Electric) 1.5 W / ch

Signal to Noise Ratio 50 dB

Frequency response 100 Hz – 20 Khz

Distortion < 10 % THD (@1kHz)

Vibration

Screen image

There should be no audible vibration with volume at 100% and

treble / bass at default.

There should be no affect on the screen image stability under any

conditions.

Connector PC99 requirement Audio in Lime Green pantone # 577C

Cable type / length 3.5mm stereo cable / 1.8m length

Audio DPMS

Speakers should be off when the rest of the monitor is in power

saving.

* No any sympathetic or abnormal noise allowed.

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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 0.285 mm

Glass Treatment Anti-Glare, Hard coating (3H)

# of Backlights 4 CCFL

Backlight Life 40000 Hrs (Min)

300 cd/m2 (Typ after 30 minute warm up) Luminance (Center) –

CT = 6500K,

Contrast/ Brightness = Max

230 cd/m2 (Min after 30 minute warm up)

Brightness Uniformity (13 points) 77 % (Typ) / 67 % (Min)

Contrast Ratio 700 :1 (Typ) 500 : 1 (Min)

Color Depth 16.2 million colors (6+2 bit panel)

Horizontal Viewing Angle 150 degrees (Typ) / 130 degrees (Min) @ CR>10

Vertical Viewing Angle 130 degrees (Typ) / 120 degrees (Min) @ CR>10

Response Time

On-Off

10%-90% @ Ta=25°C 5ms (Typ) / 15ms (Max)

Mercury 3.0 mg per lamp

Panel Defects Please see Panel Quality Specifications.

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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. Also toggles between two controls on some screens. Also a shortcut to toggle analog and digital connection.

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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.

The command line at the bottom of the control screen tells what to do next from this screen. You can toggle between control screens, adjust the selected option, or exit the screen.

4. To adjust the setting, press the up S or down T buttons.

5. To save the adjustments and exit the menu, press button [1] twice.

The following tips may help you optimize your display:

• Adjust the computer's graphics card so that it outputs a 1440 x 900 @ 60Hz video signal to the LCD display. (Look for instructions on “changing the refresh rate” in the graphics card's user guide.)

• If necessary, make small adjustments using H. POSITION and V. POSITION until the screen image is completely visible. (The black border around the edge of the screen should barely touch the illuminated “active area” of the LCD display.)

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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.

Audio Adjust Vol ume increases the volume, decreases the volume, and mutes the audio. Mute temporarily silences audio output.

Color Adjust provides several color adjustment modes, including preset color

temperatures and a User Color mode which allows independent adjustment of red (R), green (G), and blue (B). The factory setting for this product is 6500K (6500 Kelvin).

sRGB-This is quickly becoming the industry standard for color management, with support being included in many of the latest applications. Enabling this setting allows the LCD display to more accurately display colors the way they were originally intended. Enabling the sRGB setting will cause the Contrast and Brightness adjustments to be disabled.

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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.

Important: If you select RECALL from the Main Menu when the product is

set to a Preset Timing Mode, colors return to the 6500K factory preset.

Information displays the timing mode (video signal input) coming from the graphics card in the computer, the LCD model number, the serial number, and the ViewSonic® website URL. See your graphics card’s user guide for instructions on changing the resolution and refresh rate (vertical frequency).

NOTE: VESA 1680 x 1050 @ 60Hz (recommended) means that the resolution is

1680 x 1050 and the refresh rate is 60 Hertz.

Manual Image Adjust Sub-menu

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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.

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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.

with a “30 second” setting, if a control is not pushed within 30 seconds, the

OSD Timeout sets the length of time the OSD screen is displayed. For example,

display screen disappears.

OSD Background allows the user to turn the OSD background On or Off.

Memory Recall returns the adjustments back to factory settings if the display is

operating in a factory Preset Timing Mode listed in the Specifications of this manual.

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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. To further reduce system costs, the

TSUM56AWHL-LF-1 also integrates intelligent power management control capability for green-mode requirements and

spread- spectrum support for EMI management.

The TSUM56AL incorporates the world’s first coherent oversampled RGB graphics ADC in a monitor controller system. The

oversampling ADC samples the input RGB signals at a frequency that is much higher than the signal source pixel rate. This

can preserve details in the video signal that ordinarily would be lost due to input signal jitter or bandwidth limitations in

non-oversampled systems. The TSUM56AL also incorporates a new Dynamic Frame Rate (DFR) generator

output video to the display panel that preserves the advantages of a fixed output clock rate, while eliminating the output end of

frame short-line.

for the digital

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

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 ________________________________________ 0 | 00 FF FF FF FF FF FF 00 5A 63 10 | 1E 9D 01 01 01 01 01 10 01 03 20 | 0E 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 01 01 50 | 01 01 01 01 9A 29 A0 D0 51 84 60 | 22 30 50 98 36 00 9A 00 11 00 70 | 00 1C 00 00 00 FF 00 51 43 36 80 | 30 36 30 31 30 30 30 30 31 0A 90 | 00 00 00 FD 00 32 4B 1E 52 0E 100 | 00 0A 20 20 20 20 20 20 00 00 110 | 00 FC 00 56 47 31 39 33 30 77 120 | 6D 0A 20 20 20 20 00 DD

(08-09) ID Manufacturer Name ________________ = VSC (11-10) Product ID Code _____________________ = 9D1E (12-15) Last 5 Digits of Serial Number ______ = Not Used (16) Week of Manufacture _________________ = 01 (17) Year of Manufacture _________________ = 2006 (10-17) Complete Serial Number ______________ = See Descriptor Block (18) EDID Version Number _________________ = 1 (19) EDID Revision Number ________________ = 3 (20) VIDEO INPUT DEFINITION: Analog Signal

0.700, 0.300 (1.000 Vp-p) Separate Syncs, Composite Sync, Sync on Green (21) Maximum Horizontal Image Size ________________ = 410 mm (22) Maximum Vertical Image Size __________________ = 260 mm

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

(23) Display Gamma ________________________________ = 2.20 (24) Power Management and Supported Feature(s): 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 - 0.329 (35) ESTABLISHED TIMING I: 720 X 400 @ 70Hz (IBM,VGA) 640 X 480 @ 60Hz (IBM,VGA) 640 X 480 @ 67Hz (Apple,Mac II) 640 X 480 @ 72Hz (VESA) 640 X 480 @ 75Hz (VESA) 800 X 600 @ 56Hz (VESA) 800 X 600 @ 60Hz (VESA) (36) ESTABLISHED TIMING II: 800 X 600 @ 72Hz (VESA) 800 X 600 @ 75Hz (VESA) 832 X 624 @ 75Hz (Apple,Mac II) 1024 X 768 @ 60Hz (VESA) 1024 X 768 @ 70Hz (VESA) 1024 X 768 @ 75Hz (VESA) 1280 X 1024 @ 75Hz (VESA) (37) Manufacturer's Reserved Timing: 1152 X 870 @ 75Hz (Apple,Mac II) (38-53) Standard Timing Identification: 1440 X 900 @60Hz 1440 X 900 @75Hz 1280 X 1024 @60Hz 1280 X 960 @60Hz 1152 X 864 @75Hz Not Used Not Used Not Used

(54-71) Detailed Timing / Descriptor Block 1: 1440x900 Pixel Clock: 106.50 MHz

Horizontal Image Size: 410 mm Vertical Image Size: 256 mm Refreshed Mode: Non-Interlaced Normal Display - No Stereo

Horizontal:

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

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: 59.89 Hz

Digital Separate, Horizontal Polarity (-) Vertical Polarity (+)

(72-89) Detailed Timing / Descriptor Block 2:

Monitor Serial Number: QC6060100001

(90-107) Detailed Timing / Descriptor Block 3:

Monitor Range Limits: Min Vertical Freq - 50 Hz Max Vertical Freq - 75 Hz Min Horiz. Freq - 30 KHz Max Horiz. Freq - 82 KHz Pixel Clock - 140 MHz Secondary GTF - Not Supported

(108-125) Detailed Timing / Descriptor Block 4:

Monitor Name: VG1930wm

(126) No Extension EDID Block(s) (127) CheckSum OK

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

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 00 70 | 00 1C 00 00 00 FF 00 51 43 36 80 | 30 36 30 31 30 30 30 30 31 0A 90 | 00 00 00 FD 00 32 4B 1E 52 0E 100 | 00 0A 20 20 20 20 20 20 00 00 110 | 00 FC 00 56 47 31 39 33 30 77 120 | 6D 0A 20 20 20 20 00 32

(21) Maximum Horizontal Image Size ________________ = 410 mm (22) Maximum Vertical Image Size __________________ = 260 mm (23) Display Gamma ________________________________ = 2.20 (24) Power Management and Supported Feature(s):

ViewSonic Corporation Confidential - Do Not Copy VG1930wm-3

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