Viewsonic VG712s Service Manual

Model No. VLCDS23719-6W

17” Color TFT LCD Display

Service Manual

ViewSonic VG712s-1

ViewSonic



381 Brea Canyon Road, Walnut, California 91789 USA - [phone]

(VG712_SM_835 Rev. 1a June 2004)

Copyright

Copyright

¤

2004 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

ViewSonic is a registered trademark of ViewSonic Corporation.

All other trademarks used within this document are the property of their respective owners.

Optiquest is a registered trademark of ViewSonic Corporation.

Revision History

Revision Date Description Of Changes Approval

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1a 06/108/04 Initial Release DCN-4475 Angela Lu

TABLE OF CONTENTS

2. Specification

3. Front Panel Function Control Description

4. Circuit Description

6. Trouble Shooting Flow Chart

9. Block Diagram

10. Schematic Diagrams

7. Recommended Spare Parts List

1. Precautions and Safety Notices

5. Adjusting Procedure

8. Exploded Diagram And Spare Parts List

11. PCB Layout Diagrams

1

5

15

22

25

50

54

57

60

61

67

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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 high quality and safety approved AC/DC power adapter.

(5) Disconnect the power plug from AC outlet if the product is not 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 susceptible to excessive dusts and dirt.

- Near any appliance generating a strong magnetic field.

- Place 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. Power Supply Requirements

The external power converter for this display utilizes AC and DC cords, AC cord is detachable, but DC cord is permanently

attached. Any attempt to replace another adapter could result in serious problems on the display.

1. Precautions and Safety Notices

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5. LCD Module Handling Precautions

5.1 Handling Precautions

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

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

(3) Wipe off water drop 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 insure human earth when

handling.

(7) Do not open nor modify the Module Assembly.

(8) Do not press the reflector sheet at the back of the module to any directions.

(9) In case if a Module has to be put back into the packing container slot after once it was taken out from 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 nor 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

nor bend the TFT Module even momentary. At designing the enclosure, it should be taken into

consideration that no bending/twisting forces are applied to the TFT Module from outside. Otherwise the

TFT Module may be damaged.

(12) Cold cathode fluorescent lamp in LCD contains a small amount of mercury. Please follow local ordinances

or regulations for disposal.

(13) Small amount of materials having no flammability grade is used in the LCD module. The LCD module

should be supplied by power complied with requirements of Limited Power Source (IEC60950 or UL1950),

or be applied exemption.

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

UL1950). Do not connect the CFL in Hazardous Voltage Circuit.

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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. Do not touch the surface of the

polarizer.

Surface of the LCD panel is pressed by fingers and that

will probably cause “Mura.”

Take out the monitor with cushions

Take out the monitor by grasping the LCD panel. That

will probably cause “Mura.”

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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 “Mura.”

The panel is placed facedown on the lap. That will

probably cause “Mura.”

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1. General Requirements

General Specifications

Test Resolution & Frequency 1280x1024 @ 60Hz

Test Image Size Full Size

Contrast and Brightness Controls

Factory Default:

Contrast = 70%, Brightness = 100%

2. Signal Interface

Video Interface

Analog Input Connector DB-15 (Analog)

Digital Input Connector DVI-I (Digital)

Default Input Connector Defaults to the first detected input

Video Cable Connector DB-15 Pin out Compliant DDC 2B

Video Signals 1. Video RGB (Analog)

Separate

2. TMDS (Digital)

Video Impedance 75 Ohms (Analog), 100 Ohms (Digital)

Exclusions Not compatible with interlaced video

3. Power

Power Supply

Power Supply (Adapter) Part Number: LSE 0107A1240

Input Voltage Range 90 to 264 VAC

Over Current Protection 12.7V ~ 18V full load

Power Dissipation 40 Watts (typ.)

2. Specification

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4. Electrical Requirements

Horizontal / Vertical Frequency

Horizontal Frequency 30 – 82 KHz

Vertical Refresh Rate 50 – 85* Hz.

1. Since 75Hz in panel spec, the image quality

might be worse than <= 75Hz

2. For resolution 1280 x 1024, the vertical refresh

rate up to 75 Hz; for the rest resolutions, the vertical

refresh rate up to 85Hz

Maximum Pixel Clock 135 MHz

Primary Preset 1280x1024@60Hz

Look up table timing

<<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, 31.5KHz

640 x 480 @ 67Hz, 35.0KHz

640 x 480 @ 72Hz, 37.9KHz

640 x 480 @ 75Hz, 37.5KHz

640 x 480 @ 85Hz, 43.27KHz

720 x 400 @ 70Hz, 31.5KHz

800 x 600 @ 56Hz, 35.1KHz

800 x 600 @ 60Hz, 37.9KHz

800 x 600 @ 75Hz, 46.9KHz

800 x 600 @ 72Hz, 48.1KHz

800 x 600 @ 85Hz, 53.7KHz

832 x 624 @ 75Hz, 49.7KHz

1024 x 768 @ 60Hz, 48.4KHz

1024 x 768 @ 70Hz, 56.5KHz

1024 x 768 @ 72Hz, 58.1KHz

1024 x 768 @ 75Hz, 60.0KHz

1024 x 768 @ 85Hz, 68.67KHz

1152 x 864 @ 75Hz, 67.5KHz

1152 x 870 @ 75Hz, 68.7KHz

1280 x 1024 @ 60Hz, 63.4KHz

1280 x 1024 @ 75Hz, 79.97KHz

1280x 720 @ 60Hz, 45KHz (HDTV)

<<Digital>>

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, 31.5KHz

640 x 480 @ 67Hz, 35.0KHz

640 x 480 @ 72Hz, 37.9KHz

640 x 480 @ 75Hz, 37.5KHz

640 x 480 @ 85Hz, 43.27KHz

720 x 400 @ 70Hz, 31.5KHz

800 x 600 @ 56Hz, 35.1KHz

800 x 600 @ 60Hz, 37.9KHz

800 x 600 @ 75Hz, 46.9KHz

800 x 600 @ 72Hz, 48.1KHz

800 x 600 @ 85Hz, 53.7KHz

832 x 624 @ 75Hz, 49.7KHz

1024 x 768 @ 60Hz, 48.4KHz

1024 x 768 @ 70Hz, 56.5KHz

1024 x 768 @ 72Hz, 58.1KHz

1024 x 768 @ 75Hz, 60.0KHz

1024 x 768 @ 85Hz, 68.67KHz

1152 x 864 @ 75Hz, 67.5KHz

1152 x 870 @ 75Hz, 68.7KHz

1280 x 1024 @ 60Hz, 63.4KHz

1280 x 1024 @ 75Hz, 79.97KHz

1280x 720 @ 60Hz, 45KHz (HDTV)

Changing Modes

Maximum Mode Change Blank Time for image

stability. Note:

1. 3 seconds (Max), excluding “Auto Adjust”

time

2. Under DOS mode (640 x 350, 720 x 400 &

640 x 400), it should recall factory setting

when execute “Auto Adjust”

3. The monitor needs to do “Auto Adjust” the

first time a new mode is detected

4. While running Change Mode, Auto Adjust or

Memory Recall, the image shall blank.

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5. 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) 3 W @ < 8% DISTORTION

Signal to Noise Ratio 72 dB

Frequency response 400 Hz – 20 KHz

Distortion < 8 % THD (@1KHz)

6. LCD Panel

Panel Characteristics

Model number AUO M170EN05 V08

Type TN type with LVDS interface

Active Size 337.9 (H) X 270.3 (V)

Pixel Arrangement RGB Vertical Stripe

Pixel Pitch 0.264 mm

GLASS TREATMENT Anti Glare (Hard coating 3H)

# OF BACKLIGHTS 4 CCFL edge-light (2 top / 2 bottom)

BACKLIGHT LIFE 50,000 Hours (min)

Luminance (Center) –

Condition:

CT = 6500K, Contrast = Max, Brightness = Max

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

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

Brightness Uniformity (9 Points) U = 80% (typ), 75% (min)

U = Min Luminance in 9 points / max

Luminance in 9 points

Contrast Ratio 500:1 (typ), 250:1 (min)

Color Depth 16 million colors (6 bit + 2 bit FRC)

Viewing Angle (Horizontal) @ CR>10

Typical: 140º

Minimum: 120º

@ CR>5

Typical: 160º

Minimum: 140º

VIEWING ANGLE (VERTICAL) @ CR>10

Typical: 140º

Minimum: 120º

@ CR>5

Typical: 160º

Minimum: 140º

Response Time

10%-90% @ Ta=25°C

12 ms (Tr= 3 ms, Tf = 9 ms) (typ)

20 ms (Tr= 4 ms, Tf = 16 ms) (max)

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7. Mechanical

Dimensions

Width 378 mm (14.9 inch)

Height 405 mm (16.0 inch)

Depth 177 mm ( 7.0 inch)

Monitor Weight 5.3 kg / 11.66 lbs

Ergonomics

Tilt Up

20 º +/- 20%

Tilt Down -5 º +/- 20%

8. Environmental

Environmental Conditions

Operating Temperature 0°C to +40°C

Storage Temperature -20°C to +60°C

Operating Relative Humidity 20% to 90% RH Non-Condensing

Storage Relative Humidity 5% to 90% RH Non-Condensing

Operating Altitude 0 to +3,000 meters

Storage Altitude 0 to +12,000 meters

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Appendix E: Analog EDID

VG712s Analog EDID

Time: 13:10:50

Date: Wed Jan 14, 2004

______________________________________________________________________

______________________________________________________________________

VIEWSONIC CORPORATION

EDID Version # 1, Revision # 3

DDCTest For: ViewSonic VG712s

______________________________________________________________________

______________________________________________________________________

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 | 1

9 7B 01 01 01 01 01 0E 01 03

20 | 08 22 1B 78 2E C5 C6 A3 57 4A

30 | 9C 23 12 4F 54 BF EF 80 81 80

40 | 61 59 45 59 31 59 01 01 01 01

50 | 01 01 01 01 30 2A 00 98 51 00

60 | 2A 40 30 70 13 00 52 0F 11 00

70 | 30 00 1E 00 00 00 FF 00 50 33 55

80 | 30 34 30 31 30 30 30 30 31 0A

90 | 00 00 00 FD 00 32 55 1E 52 0E

100 |

00 0A 20 20 20 20 20 20 00 00

110 | 00 FC 00 56 47 37 31 32 73 0A

120 |

20 20 20 20 20 20 00 94

______________________________________________________________________

(08-09) ID Manufacturer Name = VSC

(11-10) Product ID Code = 7B19

(12-15) Last 5 Digits of Serial Number = Not Used

(16) Week of Manufacture = 01

(17) Year of Manufacture = 2004

(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

9

. EDID

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(21) Maximum Horizontal Image Size = 340 mm

(22) Maximum Vertical Image Size = 270 mm

(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 - 0.290 Blue X - 0.140 White X - 0.310

Red Y - 0.340 Green Y - 0.610 Blue Y - 0.070 White Y - 0.330

(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:

1280 X 1024 @60Hz

1024 X 768 @85Hz

800 X 600 @85Hz

640 X 480 @85Hz

Not Used

Not Used

Not Used

Not Used

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______________________________________________________________________

(54-71) Detailed Timing / Descriptor Block 1:

1280x1024 Pixel Clock: 108.00 MHz

______________________________________________________________________

Horizontal Image Size: 338 mm Vertical Image Size: 271 mm

Refreshed Mode: Non-Interlaced Normal Display - No Stereo

Horizontal:

Active Time: 1280 pixels Blanking Time: 408 pixels

Sync Offset: 48 pixels Sync Pulse Width: 112 pixels

Border: 0 pixels Frequency: 63.98 KHz

Vertical:

Active Time: 1024 lines Blanking Time: 42 lines

Sync Offset: 1 lines Sync Pulse Width: 3 lines

Border: 0 lines Frequency: 60.02 Hz

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

______________________________________________________________________

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

Monitor Serial Number:

P3U040100001

______________________________________________________________________

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

Monitor Range Limits:

Min Vertical Freq - 50 Hz

Max Vertical Freq - 85 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:

VG712s

(126) No Extension EDID Block(s)

(127) CheckSum OK

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Appendix F: Digital EDID

VG712s Digital EDID

Time: 08:14:47

Date: Fri Jan 30, 2004

______________________________________________________________________

______________________________________________________________________

VIEWSONIC CORPORATION

EDID Version # 1, Revision # 3

DDCTest For: ViewSonic VG712s

______________________________________________________________________

______________________________________________________________________

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 |

19 7B 01 01 01 01 01 0E 01 03

20 | 80 22 1B 78 2E C5 C6 A3 57 4A

30 |

9C 23 12 4F 54 BF EF 80 81 80

40 |

61 59 45 59 31 59 31 0A 01 01

50 |

01 01 01 01 30 2A 00 98 51 00

60 |

2A 40 30 70 13 00 52 0F 11 00

70 | 0

0 1E 00 00 00 FF 00 50 33 55

80 |

30 34 30 31 30 30 30 30 31 0A

90 |

00 00 00 FD 00 32 55 1E 52 0E

100 |

00 0A 20 20 20 20 20 20 00 00

110 |

00 FC 00 56 47 37 31 32 73 0A

120 |

20 20 20 20 20 20 00 E3

______________________________________________________________________

(08-09) ID Manufacturer Name = VSC

(11-10) Product ID Code = 7B19

(12-15) Last 5 Digits of Serial Number = Not Used

(16) Week of Manufacture = 01

(17) Year of Manufacture = 2004

(10-17) Complete Serial Number = See Descriptor Block

(18) EDID Version Number = 1

(19) EDID Revision Number = 3

(20) VIDEO INPUT DEFINITION:

Digital Signal

Non - VESA DFP 1.x Compatible

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(21) Maximum Horizontal Image Size = 340 mm

(22) Maximum Vertical Image Size = 270 mm

(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 - 0.290 Blue X - 0.140 White X - 0.310

Red Y - 0.340 Green Y - 0.610 Blue Y - 0.070 White Y - 0.330

(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:

1280 X 1024 @60Hz

1024 X 768 @85Hz

800 X 600 @85Hz

640 X 480 @85Hz

640 X 400 @70Hz

Not Used

Not Used

Not Used

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______________________________________________________________________

(54-71) Detailed Timing / Descriptor Block 1:

1280x1024 Pixel Clock: 108.00 MHz

______________________________________________________________________

Horizontal Image Size: 338 mm Vertical Image Size: 271 mm

Refreshed Mode: Non-Interlaced Normal Display - No Stereo

Horizontal:

Active Time: 1280 pixels Blanking Time: 408 pixels

Sync Offset: 48 pixels Sync Pulse Width: 112 pixels

Border: 0 pixels Frequency: 63.98 KHz

Vertical:

Active Time: 1024 lines Blanking Time: 42 lines

Sync Offset: 1 lines Sync Pulse Width: 3 lines

Border: 0 lines Frequency: 60.02 Hz

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

______________________________________________________________________

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

Monitor Serial Number:

P3U040100001

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

Monitor Range Limits:

Min Vertical Freq - 50 Hz

Max Vertical Freq - 85 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:

VG712s

(126) No Extension EDID Block(s)

(127) CheckSum OK

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Adjusting the Screen Image

Use the buttons on the front control panel to display and adjust the OnView

®

controls which display on the screen. The OnView controls are explained at the

top of the next page.

Scrolls through menu options and

adjusts the displayed control.

Also a shortcut to display the

Contrast adjustment control

screen.

Power

On/Off

Displays the control

screen for the highlighted

control.

Also toggles between two

controls on some

screens.

Also a shortcut to toggle

between analog and

digital connections.

Power light

Green = ON

Orange = Power

Saving

Main Menu with OnView controls

Front Control Panel shown

below

Audio Mute button

turns the sound off.

Displays the Main Menu

or exits the control screen

and saves adjustments

Decreases or

increases volume

Speaker Speaker

MAIN

ř EXIT ř SELECT

MENU

AUTO IMAGE ADJUST

CONTRAST/BRIGHTNESS

INPUT SELECT

AUDIO MENU

COLOR ADJUST

INFORMATION

MANUAL IMAGE ADJUST

SETUP MENU

MEMORY RECALL

1

2

3. Front Panel Function Control Description

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Do the following to adjust the screen image:

1

To display the Main Menu, press button [1].

NOTE:

All OnView 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 you want to adjust, press

▲

or

▼

to scroll up or down the

Main Menu.

3

After the control is selected, press button [2]. A control screen like the one

shown below appears.

4

To adjust the control, press the up

▲

or down

▼

buttons.

5

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

twice

.

The following tips may help you optimize your display:

• Adjust your computer's graphic card so that it outputs a video signal 1280 x

1024 @ 60Hz to the LCD display. (Look for instructions on "changing the

refresh rate" in your graphic 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.)

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.

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Main Menu Controls

Adjust the menu items shown below by using the up

▲

and down

▼

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.

Color Adjust

provides several color adjustment modes: preset

color temperatures and

RGB

which allows you to adjust red (

R

),

green (

G

), and blue (

B

) separately. The factory setting for this

product is 6500K (6500 Kelvin).

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.

sRGB

— sRGB 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.

Color Adjust

sRGB

9300K

Ԧ6500K

5400K

5000K

User Color

1:EXIT 2:SELECT

Audio Adjust

Volume

increases the volume, decreases the volume, and

mutes the audio.

Mute

temporarily silences audio output.

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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, press

▲

or

▼

.

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.

Control Explanation

Information

displays the timing mode (video signal input)

coming from the graphics card in your computer, the LCD

model number, the serial number, and the ViewSonic website

URL. See your graphic card’s user guide for instructions on

changing the resolution and refresh rate (vertical frequency).

NOTE:

VESA 1280 x 1024 @ 60Hz (recommended) means

that the resolution is 1280 x 1024 and the refresh rate is 60

Hertz.

Manual Image Adjust Sub-menu

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.

Information:

H. Frequency: XX kHz

V. Frequency: XX Hz

Resolution XXXXXXXXX

Pixel Clock: XXX MHz

Serial Number: XXXXXXXXXXX

Model Number: XXXXXXXXXXX

www.ViewSonic.com 1: Exit

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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 of the screen image.

Setup menu displays the menu shown below:

Language

allows you to choose the language used in the menus

and control screens.

Control Explanation

Resolution Notice

allows you to enable or disable this notice.

If you enable the Resolution Notice shown above and your

computer is set at a resolution other than 1280 x 1024, the

following screen appears.

Resolution Notice

ԦOn ԦOff

1: Exit

Resolution Notice

Press "1" to Clear Message.

Press "2" to Disable Message.

For best picture quality, change the resolution to 1280 x 1024

Setup Menu

Language Select

Resolution Notice

OSD Position

OSD Time Out

OSD Background On/Off

1: Exit 2: Select

19

ViewSonic Corporation Confidential

-

Do Not Copy

VG712s