ViewSonic VG810S Manual de usuario

Marca: ViewSonic

Modelo: VG810S

Categoría: Televisores

Tipo: Manual de usuario

Model No. VLCDS27944-1W/-2W

18” Color TFT LCD Display

Service Manual

ViewSonic VG810s/b-1

ViewSonic



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

(VG810s/b_SM_720 Rev. 1a Mar. 2004)

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

1a 03/02/04 Initial Release DCN-3603 Angela Luh

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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

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Prior to using this manual, please ensure that you have carefully followed all the procedures outlined in the

user manual for this product.

• Read all of these instructions.

• Save these instructions for later use.

• Follow all warnings and instructions marked on the product.

• Do not use this product near water.

• This display should be installed on a solid horizontal base.

• When cleaning, use only a neutral detergent cleaner with a soft damp cloth. Do not spray with liquid or

aerosol cleaners.

• Do not expose this display to direct sunlight or heat. Hot air may cause damage to the cabinet and other

parts.

• Adequate ventilation must be maintained to ensure reliable and continued operation and to protect the

display from overheating. Do not block ventilation slots and openings with objects or install the display in

a place where ventilation may be hindered.

• Do not install this display near a motor or transformer where strong magnetism is generated. Images on the

display will become distorted and the color irregular.

• Do not allow metal pieces or objects of any kind fall into the display from ventilation holes.

Slots and openings in the cabinet and the back or bottom are provided for ventilation, to ensure reliable

operation of the product and to protect it from overheating, those openings must not be blocked or covered.

The openings should never be blocked by placing the product on a bed, sofa, rug, or other similar surface.

This product should never be placed near or over a radiator or heat register. This product should not be placed

in a built-in installation unless proper ventilation is provided.

1. Precautions and Safety Notices

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2.1 General Description

Active matrix thin-film-transistor (TFT) Type No: LM181E06-A4M5

LCD

LM181E06-A4M5

Active screen Size

Effective Display Size

Pixel Pitch

Pixel Format

Brightness

Contrast Ratio

Color (8 bits)

Viewing Angle range

(CR 10, at Ta=25°C)

Backlight

18.1 inches diagonal

359.04mm (H) × 287.232mm ( V )

0.280mm (H) × 0.280mm(V)

1280×1024 (SXGA )

250cd/m

( Typ. & panel depends )

350:1 ( Typ. & panel depends)

16,777,216 colors

Up 80° Down 80°(type)

Left 80° Right 80°(type)

6 CCFL

Input Signals

Analog RGB 0.7Vp-p / 75

Digital RGB DVI Ver1.0 (TMDS Single Link)

H/V Separate sync. Sync 2.0~5.0Vp-p, Positive/Negative, 2.2K

Input connector Analog D-sub 15 pin *1

Digital DVI-D 24pin *1

Synchronization Horizontal

Vertical

Non-interlaced

30 kHz to 82 kHz

50 Hz to 85 Hz

Maximum Pixel

Rated 135MHz

(automatically)

Resolution Horizontal

Vertical

1280 dots

1024 lines

Active Display Area Horizontal

Vertical

359.04 mm (typical , panel depends)

287.232 mm (typical , panel depends)

Power Supply

Voltage Rating

AC input

DC 12V

AC 100V~240V / 2A , 47.5~63Hz

5A.

AC Power

Consumption

less than 60W

less than 1W

On mode.

Active OFF mode.

DC Power OFF.

Current Rating AC input 2A @AC 100~240V.

Dimensions

408(W)*370.2(H)*65.4(D)mm (without stand base)

408(W)*433.1(H)*180.27(D)mm (with stand base)

Weight (net) 7Kg (net weight)

Environmental

Conditions

Operating Temperature

Operating Humidity

Storage Temperature

Storage Humidity

0 to 40°C

20 to 90%

-20 to 60°C

5 to 90% (non-condensation)

Accessories AC cable

User Guide

CD Rom

Warranty Card

HD15 - HD15 cable

1.8m

English

Regulatory Standard

UL, cUL, FCC-B, CB, CE, EPA, NOM, TUV/GS, TUV ERGO (covers ISO13406-2 &

MPRII), NEMKO, SEMKO, DEMKO, FIMKO, GOST-R + 20 ORIGINAL COPIES

HYGIENIC, PCBC, VCCI, BSMI, CCEE, PSB, C-TICK, TUV-S, TCO 99(VG810b),

TCO'03(VG810s), Energy, Energy Star, PCT, Taiwan Green Mark

Others Tilt Angle 20° up / 5° down

VESA DDC 2B compatible

2. Specification

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2.2 Electrical Characteristics

2.2.1 Power Supply

AC Input Voltage AC 100~240 V / 47.5~63Hz

Power Consumption:

Less than 60W On mode

Less than 1W Active Off mode

Less than 1W DC power Off

Current Rating 2A @ AC 100~240V

Inrush Current

Less than 50 Amp(peak) for 120 Vac

Less than 100 Amp(peak) for 230 Vac

Power cord detachable, 3P, 1.8m

2.2.2 LCD

LCD Active matrix thin-film-transistor (TFT)

Active screen size 18.1 inches (359.04mm × 287.232mm) diagonal

Pixel Format 1280 x 1024 (SXGA )

R.G.B. stripe arrangement

Display method TFT, normally Black

Pixel pitch 0.280 (H) x 0.280 (V) mm

Dot number 1280 x 1024 x 3 dots

Backlight Edge-lighting type with 6 CCFL

(Cold Cathode Fluorescent Lamp)

Brightness 250 cd/m

( Typ. & panel depends )

Contrast ratio 350:1 ( Typ. & panel depends )

Display color 16,777,216 colors

viewing angle typical Up 80° / down 80° / right 80° / left 80°

(Contrast ratio10 at Ta=25°C / 77°F)

Response time Rise time 15mS, Fall time 15mS

2.2.3 Luminance Control

100IRE , 6500K, Center of screen, Full white pattern, 50cm, 90°

OVER 200 cd / m

(x = 0.313 +/- 0.03 , y = 0.329 +/- 0.03)

(@ Contrast / Brightness max)

2.2.4 Synchronization

Horizontal 30 to 82 kHz

Vertical 50 to 85 Hz Non-interlaced

Recommended 1280 x 1024 @60Hz mode

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2.2.5 Power Management

VG810 will enter power saving mode under the following conditions:

Power Management condition and status

Signals

State

Horizontal Vertical Video

Power

Supply

LED

On Pulses Pulses Active <60W Green

Pulses No Pulse

No Pulse Pulses

Active off

No Pulse No Pulse

Blank <1W Amber

Out off scan

range

<30KHz ,

>82KHz

<50Hz ,

>85Hz

- <60W Green

AC power Off - - - Off Off

DC power Off - - - <1W Off

2.3 Video alignment

2.3.1 Color temperature alignment

a. Apply VESA 1280x1024 / 60Hz, full white pattern.( Input signal level =0.7Vp-p )

b. Auto white balance must be finish at 32 gray pattern before auto alignment.

c. Set default Æ Contrast to 70%, Brightness to 100%.

9300°K, 6500°K RGB Offset set as below

9300°K 6500°K 5400°K 5000°K

R Offset 128 128 128 128

G Offset 128 128 128 128

B Offset 128 128 128 128

2.3.2 Digital alignment

2.3.2.1 Apply VESA 1280x1024 / 60Hz , full white pattern.

2.3.2.2 Adjust R, G, B Gain to meet following chromaticity spec.

x = 0.313 ± 0.003, y = 0.329 ± 0.003

2.3.3 Analog alignment

2.3.3.1 9300°K High luminance alignment

2.3.3.1.1 Apply VESA 1280x1024 / 60Hz, full white pattern.

2.3.3.1.2 Adjust R, G, B Gain to meet following chromaticity spec.

9300°K x = 0.283 ± 0.003, y = 0.298 ± 0.003 , Y > 150 cd/m

2.3.3.2 6500°K High luminance alignment

2.3.3.2.1 Apply VESA 1280x1024 / 60Hz , full white pattern.

2.3.3.2.2 Adjust R, G, B Gain to meet following chromaticity spec.

6500°K x = 0.313 ± 0.003, y = 0.329 ± 0.003 , Y > 190 cd/m

2.3.3.3 5400°K High luminance alignment

2.3.3.3.1 Apply VESA 1280x1024 / 60Hz , full white pattern .

2.3.3.3.2 Adjust R, G, B Gain to meet following chromaticity spec.

5400°K x = 0.335 ± 0.003, y = 0.350 ± 0.003 , Y > 180 cd/m

2.3.3.4 5000°K High luminance alignment

2.3.3.4.1 Apply VESA 1280x1024 / 60Hz , full white pattern .

2.3.3.4.2 Adjust R, G, B Gain to meet following chromaticity spec.

5000°K x = 0.346 ± 0.003, y = 0.359 ± 0.003 , Y > 180 cd/m

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2.3.4 Luminance test

2.3.4.1 Set color temperature to 9300°K

Apply VESA 1280x1024/60Hz , apply full white pattern, adjust

OSD Brightness = 100%, Contrast = 70%.

1. The luminance measure should be over 150 cd/m

2.3.4.2 Set color temperature to 6500°K

Apply VESA 1280x1024 / 60Hz, apply full white pattern, adjust

OSD Brightness = 100%, Contrast = 70%

1. The brightness measure should be over 190 cd/m

2. OSD Brightness = 100%, Contrast = 100%, The brightness measure should be over

200cd/m

2.3.4.3 Set color temperature to 5400°K

Apply VESA 1280x1024 / 60Hz , apply full white pattern, adjust

OSD Brightness = 100%, Contrast = 70%

1. The brightness measure should be over 180 cd/m

2.3.4.4 Set color temperature to 5000°K

Apply VESA 1280x1024 / 60Hz , apply full white pattern, adjust

OSD Brightness = 100%, Contrast = 70%

1. The brightness measure should be over 180 cd/m

2.3.4.5 Apply VESA 1280x1024/60Hz, apply full white pattern, adjust

OSD Brightness 100%, Contrast 70% ,

Measurement at center of screen

Mode X y Y

9300°K

0.283 0.010

(Default)

0.298 0.010

(Default)

OVER 150 cd/m

(Brightness 100%, Contrast 70%)

6500°K

0.313 0.010

(Default)

0.329 0.010

(Default)

OVER 190 cd/m

(Brightness 100%, Contrast 70%)

5400°K

0.335 0.010

(Default)

0.350 0.010

(Default)

OVER 180 cd/m

(Brightness 100%, Contrast 70%)

5000°K

0.346 0.010

(Default)

0.359 0.010

(Default)

OVER 180 cd/m

(Brightness 100%, Contrast 70%)

User mode

(R, G, B

Max.)

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2.4. Key function define

Hot Key

Key

“Volume –“

Key

“Volume +” Key “1”

Key

“DOWN

”

Key

“UP”

Key “2” power functions

Factory mode

Burn in off

Burn in on

All mode recall

Lock(Unlock)

Power Key

Lock(Unlock)

Osd Key

Read EDID

ISP

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2.5 EDID Serial No. format

2.5.1 EDID for VG810s

2.5.1.1 Analog EDID

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 18 BF 01 01 01 01 01 0D 01 03

20 0E 24 1D 78 2E 0A 25 A2 57 4B

30 99 24 18 50 54 BF EF 80 81 80

40 81 40 71 4F 01 01 01 01 01 01

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

60 2A 40 30 70 13 00 67 1F 11 00

70 00 1E 00 00 00 FF 00 41 32 5A

80 30 33 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 38 31 30 73 0A

120 20 20 20 20 20 20 00 F0

2.5.1.2 Digital EDID:

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 18 BF 01 01 01 01 01 0D 01 03

20 80 24 1D 78 2E 0A 25 A2 57 4B

30 99 24 18 50 54 BF EF 80 81 80

40 81 40 71 4F 31 0A 01 01 01 01

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

60 2A 40 30 70 13 00 67 1F 11 00

70 00 1E 00 00 00 FF 00 41 32 5A

80 30 33 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 38 31 30 73 0A

120 20 20 20 20 20 20 00 45

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2.5.2 EDID for VG810b

2.5.2.1 Analog EDID

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 18 C0 01 01 01 01 01 0D 01 03

20 0E 24 1D 78 2E 0A 25 A2 57 4B

30 99 24 18 50 54 BF EF 80 81 80

40 81 40 71 4F 01 01 01 01 01 01

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

60 2A 40 30 70 13 00 67 1F 11 00

70 00 1E 00 00 00 FF 00 41 33 30

80 30 33 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 38 31 30 62 0A

120 20 20 20 20 20 20 00 29

2.5.2.2 Digital EDID

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 18 C0 01 01 01 01 01 0D 01 03

20 80 24 1D 78 2E 0A 25 A2 57 4B

30 99 24 18 50 54 BF EF 80 81 80

40 81 40 71 4F 31 0A 01 01 01 01

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

60 2A 40 30 70 13 00 67 1F 11 00

70 00 1E 00 00 00 FF 00 41 33 30

80 30 33 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 38 31 30 62 0A

120 20 20 20 20 20 20 00 7E

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Appendix A Preset timing chart

Analog mode

1 2 3 4 5 6 7

Signal name symbol TEXT

mode

TEXT

mode

VGA MAC-II VESA-VGA VESA-VGA VESA-VGA

H-frequency (kHz) 31.468 31.469 31.468 35.001 37.5 37.862 43.269

V-frequency (Hz) 70.087 70.087 59.941 66.667 75 72.807 85.005

Pixel rate (MHz) 25.175 28.322 25.175 30.240 31.5 31.501 36.000

H-sync Ths 96 108 96 64 64 40 56

H-back porch Thb 48 54 48 96 120 128 80

Count num (H-total) Thd 800 900 800 864 840 832 832

H- front porch Thf 16 18 16 64 16 24 56

V-sync Tvs 2 2 2 3 3 3 3

V-back porch Tvb 60 35 33 39 16 28 25

Count num (V-total) Tvd 449 449 525 525 500 520 509

V-front porch Tvf 37 12 10 3 1 9 1

H-sync. Polarity Positive Negative Negative Negative Negative Negative Negative

V-sync Polarity Negative Positive Negative Negative Negative Negative Negative

H-resolution (dots) 640 720 640 640 640 640 640

V-resolution (lines) 350 400 480 480 480 480 480

8 9 10 11 12 13 14

Signal name Symbol IBM-851

SVGA SVGA SVGA SVGA MAC 16" XGA

H-frequency (kHz) 35.156 37.879 48.077 46.875 53.674 49.725 48.363

V-frequency (Hz) 56.250 60.317 72.188 75.000 85.061 74.5 60.004

Pixel rate (MHz) 36.000 40.000 50.000 49.500 56.250 57.283 65.000

H-sync Ths 72 128 120 80 64 64 136

H-back porch Thb 128 88 64 160 152 224 160

Count num (H-total) Thd 1024 1056 1040 1056 1048 1152 1344

H- front porch Thf 24 40 56 16 32 32 24

V-sync Tvs 2 4 6 3 3 3 6

V-back porch Tvb 22 23 23 21 27 39 29

Count num (V-total) Tvd 625 628 666 625 631 667 806

V-front porch Tvf 1 1 37 1 1 1 3

H-sync. Polarity Positive Positive Positive Positive Positive Negative Negative

V-sync Polarity Positive Positive Positive Positive Positive Negative Negative

H-resolution (dots) 800 800 800 800 800 832 1024

V-resolution (lines) 600 600 600 600 600 624 768

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15 16 17 18 19 20

Signal name Symbol XGA XGA XGA XGA SXGA 720P

H-frequency (kHz) 56.476 58.099 60.023 68.677 63.981 45.000

V-frequency (Hz) 70.069 72.082 75.029 84.997 60.02 60.00

Pixel rate (MHz) 75.000 78.084 78.750 94.500 108 74.250

H-sync Ths 136 136 96 96 112 40

H-back porch Thb 144 160 176 208 248 270

Count num (H-total) Thd 1328 1344 1312 1376 1688 1658

H- front porch Thf 24 24 16 48 48 60

V-sync Tvs 6 6 3 3 3 5

V-back porch Tvb 29 29 28 36 38 20

Count num (V-total) Tvd 806 806 800 808 1066 750

V-front porch Tvf 3 3 1 1 1 5

H-sync. Polarity Negative Negative Positive Positive Positive Negative

V-sync Polarity Negative Negative Positive Positive Positive Negative

H-resolution (dots) 1024 1024 1024 1024 1280 1280

V-resolution (lines) 768 768 768 768 1024 720

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Digital Mode

1 2 3 4 5 6 7

Signal name symbol

TEXT

mode

TEXT

mode

VGA VGA VESA-VGA VESA-VGA VESA-VGA

H-frequency (kHz) 31.468 31.469 31.468 31.468 37.5 37.862 43.269

V-frequency (Hz) 70.087 70.087 70.087 59.941 75 72.807 85.005

Pixel rate (MHz) 25.175 28.322 25.175 25.175 31.5 31.501 36.000

H-sync Ths 96 108

96 64 40 56

H-back porch Thb 48 54

48 120 128 80

Count num (H-total) Thd 800 900

800

800 840 832 832

H- front porch Thf 16 18

16 16 24 56

V-sync Tvs 2 2

2 3 3 3

V-back porch Tvb 60 35

33 16 28 25

Count num (V-total) Tvd 449 449

449

525 500 520 509

V-front porch Tvf 37 12

10 1 9 1

H-sync. Polarity Positive Negative Negative Negative Negative Negative Negative

V-sync Polarity Negative Positive Positive Negative Negative Negative Negative

H-resolution (dots) 640 720 640 640 640 640 640

V-resolution (lines) 350 400 400 480 480 480 480

8 9 10 11 12 13 14

Signal name Symbol IBM-8514

SVGA SVGA SVGA SVGA XGA XGA

H-frequency (kHz) 35.156 37.879 48.077 46.875 53.674 48.363 56.476

V-frequency (Hz) 56.250 60.317 72.188 75.000 85.061 60.004 70.069

Pixel rate (MHz) 36.000 40.000 50.000 49.500 56.250 65.000 75.000

H-sync Ths 72 128 120 80 64 136 136

H-back porch Thb 128 88 64 160 152 160 144

Count num (H-total) Thd 1024 1056 1040 1056 1048 1344 1328

H- front porch Thf 24 40 56 16 32 24 24

V-sync Tvs 2 4 6 3 3 6 6

V-back porch Tvb 22 23 23 21 27 29 29

Count num (V-total) Tvd 625 628 666 625 631 806 806

V-front porch Tvf 1 1 37 1 1 3 3

H-sync. Polarity Positive Positive Positive Positive Positive Negative Negative

V-sync Polarity Positive Positive Positive Positive Positive Negative Negative

H-resolution (dots) 800 800 800 800 800 1024 1024

V-resolution (lines) 600 600 600 600 600 768 768

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15 16 17 18 19

Signal name Symbol XGA XGA XGA SXGA HD-720P

H-frequency (kHz) 58.099 60.023 68.677 63.981 45.000

V-frequency (Hz) 72.082 75.029 84.997 60.02 60.00

Pixel rate (MHz) 78.084 78.750 94.500 108 74.250

H-sync Ths 136 96 96 112 40

H-back porch Thb 160 176 208 248 270

Count num (H-total) Thd 1344 1312 1376 1688 1658

H- front porch Thf 24 16 48 48 60

V-sync Tvs 6 3 3 3 5

V-back porch Tvb 29 28 36 38 20

Count num (V-total) Tvd 806 800 808 1066 750

V-front porch Tvf 3 1 1 1 5

H-sync. Polarity Negative Positive Positive Positive Negative

V-sync Polarity Negative Positive Positive Positive Negative

H-resolution (dots) 1024 1024 1024 1280 1280

V-resolution (lines) 768 768 768 1024 720

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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 and are defined in “Main Menu Controls” on page 9.

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

3. Front Panel Function Control Description

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Do the following to adjust the screen image:

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

NOTE:

All OnView menus and adjustment screens disappear automatically

after about 30 seconds.

To select a control you want to adjust, press

▲

▼

to scroll up or down the

Main Menu.

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

shown below appears.

To adjust the control, press the up

▲

or down

▼

buttons.

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 @ 60 Hz 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

▼

down

arrow decreases,

▲

up arrow

increases

The line at the

bottom of the

screen tells you

what you can do

next: Exit or select

the Brightness

control.

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Main Menu Controls

Adjust the menu items shown below by using the up

▲

and down

▼

buttons.

ControlExplanation

Auto Image Adjust

automatically sizes, centers, and fine tunes

the video signal to eliminate waviness and distortion.

Press the [2] button to obtain a sharper image.

NOTE: Auto Image Adjust works with most common video

cards. If this function does not work on your LCD display, then

lower the video refresh rate to 60 Hz and set the resolution to its

pre-set value.

Contrast

adjusts the difference between the image background

(black level) and the foreground (white level).

Brightness

adjusts background black level of the screen image.

Audio Adjust

Volume

increases the volume, decreases the volume, and mutes

the audio.

Balance

adjusts the proportion of sound coming from each

speaker.

Bass

adjusts the low (bass) frequency audio output.

Treble

adjusts the high (treble) frequency audio output.

Mute

temporarily silences audio output.

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Color Adjust

provides several color adjustment modes: preset

color temperatures and

RGB

which allows you to adjust red (

green (

), and blue (

) 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.

User Color

— Individual adjustments for red (R), green (G),

and blue (B)

To select color (R, G or B) press button [2].

To adjust selected color, press

▲

▼

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.

ControlExplanation

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.

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Information

displays the timing mode (video signal input)

coming from the graphics card in your computer. See your

graphic card’s user guide for instructions on changing the

resolution and refresh rate (vertical frequency).

NOTE:

VESA 1280 x 1024 @ 60 Hz (recommended) means

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

Hertz.

Manual Image Adjust

displays the Manual Image Adjust menu.

The

Manual Image Adjust

controls are explained below:

Horizontal Size

adjusts the width of the screen image.

Horizontal Position

moves the screen image left or right.

Vertical Position

moves the screen image up or down.

Fine Tune

sharpens focus by aligning the illuminated text and/

or graphic characters.

Sharpness

adjusts the clarity and focus of the screen image.

ControlExplanation

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Setup Menu

displays the menu shown below.

The

Setup Menu

controls are explained below:

Language

allows you to choose the language used in the menus

and control screens.

Resolution Notice

displays the Resolution Notice menu shown

below.

Resolution Notice

advises the optimal resolution to use.

OSD Position

allows you to move the on-screen display menus

and control screens.

OSD Timeout

sets the length of time an on-screen display

screen is displayed. For example, with a “15 second” setting, if

a control is not pushed within 15 seconds, the display screen

disappears.

OSD Background

allows you to turn the On-Screen-Display

background on or off.

ControlExplanation

Memory Recall

returns adjustments to the original factory

settings if the display is operating in a factory Preset Timing

Mode listed in this user guide.

Exception:

This control does not affect changes made with the

User Color control.

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D252, D253 are 3.3V convert 2.5V.

4.2 DDC data select:

4.2.1 IC601(AT24C02) saves D-SUB DDC data.

4.2.2 IC602(AT24C02) saves DVI, DDC data.

4.3 MCU

The MTV312M micro-controller is an 8051 CPU core embedded device especially tailored for CRT/LCD Monitor

application. It includes an 8051 CPU core, 1024-byte SRAM, 14 built-in PWM DACs, VESA DDC interface,

4-channel A/D converter, and a 64K-byte internal program Flash-ROM.

The MCU controls the keyboard signal and audio signal.

4.4 Scalar

The MST9131A is a high performance, and fully intergrated graphics processing IC solution for LCD monitors with

resolutions up to SXGA. It is configured with an integrated triple-ADC/PLL, a high quality scaling engine, an

on-screen display controller, a built-in output clock generator, an integrated DVI receiver, and LVDS display interface.

To further reduce system costs, the MST9131A also integrates intelligent power management control capability for

green-mode requirements and spread-spectrum support for EMI management.

The analog input (CN602) signal and DVI-D input(CN601) signal are designed to be connected directly to scalar IC,

The MST9131A built-in LVDS transmitter, is designed to be connected directly to panel.

4.5 Audio processor

IC802(PT2313L) is a four-channel digital control audio processor utilizing CMOS Technology. Volume, Bass, Treble

and Balance, Front/Rear Fader Processor are incorporated into a single chip. Loudness function and Selectable input

gain are also provided to build a highly effective electronic Audio processor having the highest performance and

reliability with the least external components. All functions are programmable using the I

C Bus.

Volume signal through IC802 pin34(right) pin25(left) into audio amplifier.

4.6 Audio amplifier

IC803(TDA1517) is an integrated class-B dual output amplifier, It contains two identical amplifier differential input

stages. The gain of each amplifier is fixed at 20dB.

Pins 1 and 9 are right and left channel inputs respectively. Pins 4 and 6 are right and left channel outputs which

connect to two 4OHM speakers.

Pin 8 is the mute/stand-by.

4.1 Power supply (DC/DC Converter):

4.1.1 IC251 MP1410 is a switching regulator controller that uses PWM method. That can be used for DC to

DC conversion for step-down. It converts a 12V DC into regulated and stable output voltage of 5V.

4.1.2 Regulator:

IC253(AIC1084-33) function is to convert a 5V into regulated and stable O/P 3.3V.

4. Circuit Description

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5.1 General.

1. All specification must be met over line voltage range of 90V

to 264V

50Hz / 60Hz, unless otherwise

specified.

2. Operating temperature range is 0

C to 40

C with a relative humidity of 10% or less to 80%.

3. The monitor must be operational in a usable state within 30 minutes after turn-on.

4. All signal levels are measured assuming termination at the monitor’s input jacks or in its characteristic impedance.

5. All controls must have excess range (no control may be left at an end stop when proper alignment is completed).

6. The monitor is not required to meet specs during the following but must tolerate, without damage to the LCD or

circuits, any sequence or combination of power on and off, signal on and off, erratic, wrong frequency or noisy

inputs while at any possible unplugging of power or signal, settings of user accessible controls likewise, the

monitor should survive extended periods of operation with line voltage reduced below the specified minimum.

7. An isolation transformer should be used when performing alignment and tests, Portions of the power supply board

are hot ground, The remaining boards are cold ground.

8. Ambient condition:

8.1 Illumination: In usual inspection of electric performance and mechanical performance, it shall be 150 ~

260lux.

8.2 Environmental noise: Less than 60dB.

8.3 Interference of EMI: The inspection shall be carried out in the place where a set is not disturbed by external

unnecessary electric wave and magnetic field.

8.4 Temperature: 24 ± 2

8.5 Humidity: 65 ± 20%.

5. Adjusting Procedure

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Input

D-SUB

Input

D-SUB

Input

1280x1024 / 60Hz

16 Grays pattern

Push

"DOWN + 2 + DC power"

3 second

Push

"1 + DC power"

3 second

Select

"RGB Reset"

function

Input

1280x1024 / 60Hz

Full white pattern

Push

"1 + DC power"

3 second

Select "Color Adjust"

to adjust

"9300K" , "6500K"

"5400K" , "5000K"

Push

Exit adjust OSD

Push

"1 + DC power"

3 second

Select "Color Adjust"

to adjust

"9300K" , "6500K"

"5400K" , "5000K"

Push "1"

Exit adjust OSD

Push "2" + DC power

to close factory mode

Push "2"

5.2 Instrument alignment.

5.2.1 Adjustment procedure.

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5.2.2

Video alignment.

5.2.1.1 Preset condition.

5.2.1.1.1 Setting the contrast to 70%

brightness to 100%.

5.2.1.1.2 Input 1280x1024 / 60Hz, 16 gray pattern (input level 100IRE 0.7Vp-p), then press “RGB

RESET”.9300K / 6500K / 5400K / 5000K, R G B offset preset as below:

9300K 6500K 5400K 5000K

Analog DVI Analog DVI Analog DVI Analog DVI

R sub-contrast 128 128 128 128 128 128 128 128

G sub-contrast 128 128 128 128 128 128 128 128

B sub-contrast 128 128 128 128 128 128 128 128

5.2.1.2 9300K alignment:

5.2.1.2.1 Input 1280x1024 / 60Hz & full white pattern at 100IRE.

5.2.1.2.2 Adjust R, G, and B sub-contrast to meet following chromaticity spec:

9300K → x = 0.283 ± 0.005, y = 0.298 ± 0.005, Y > 150cd/m

(Both analog & DVI).

5.2.1.3 6500K alignment:

5.2.1.3.1 Input 1280x1024 / 60Hz & full white pattern at 100IRE.

5.2.1.3.2 Adjust R, G and B sub-contrast to meet following chromaticity spec:

6500°K → x = 0.313 ±0.005, y = 0.329 ± 0.005, Y > 190cd/m

(Both analog & DVI).

5.2.1.4 5400K alignment:

5.2.1.4.1 Input 1280x1024 / 60Hz & full white pattern at 100IRE.

5.2.1.4.2 Adjust R, G, and B sub-brightness to meet following chromaticity spec:

5400K → x = 0.335 ± 0.005, y = 0.350 ± 0.005, Y > 180cd/m

(Both analog & DVI).

5.2.1.5 5000K alignment:

5.2.1.5.1 Input 1280x1024 / 60Hz & full white pattern at 100IRE.

5.2.1.5.2 Adjust R, G and B sub-contrast to meet following chromaticity spec:

5000°K → x = 0.346 ±0.005, y = 0.359 ± 0.005, Y > 180cd/m

(Both analog & DVI).

5.2.1.6 64grays & 16grays pattern check:

5.2.1.6.1 Input 1280x1024 / 60Hz & 64 grays pattern at 100IRE, adjust brightness 100%, and

contrast 70%.

5.2.1.6.2 9300K / 6500K / 5400K / 5000K, the 64 grays can 2steps saturation.

5.2.1.6.3 Input 1280x1024 / 60Hz & 16 grays pattern at 100IRE, adjust brightness 100%, and

contrast 100%.

5.2.1.6.4 9300K / 6500K / 5400K / 5000K, the 16 grays only had 4 grays can saturation.

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Check that CN251 pin1, 2 are approximately 12V

Check that FB251, FB252, F251 are 12V

Failure point

1. Power board failure.

2. Disconnected between CN251 and power board.

Check that C255 positive is at 5V.

Failure point

FB251, FB251, F251 failure

Failure point

P251, IC251, L251 failure

Check:

1. C262 is O/P 2.5V.

2. IC253 is O/P 3.3V.

Yes

6.1 No power.

6. Trouble Shooting Flow Chart

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6.2 No display on screen (Screen is black, LED is off).

AC power on and DC power on

no picture

LED is off

Check that C255 positive is at 5V

Check that the voltage level of

CN251 is approximately 12V

Power board failure

IC251 failure

Check CN302 pin8 is

12V, pin3 is 5V

1. Check Q309, Q310 pin.

2. Check FB315, FB316

Inverter failure

Yes

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6.3 No display on screen (LED is green).

Is the backlight lit?

Check that the cable is

fully connected to CN401

Check:

1. C262 is O/P 2.V.

2. IC253 is O/P 3.3V.

Check C255 is O/P 5V.

IC251. D251 failure

Failure point

The cable is disconnected

Failure point

1. D252, D253 failure.

2. IC253 failure.

Check that the cable is fully

connected between the inverter

and interface board.

Check CN302 pin8 is 12V,

pin3 is 5V

Inverter failure

Failure point

The cable is disconnected

1. Check Q309, Q310.

2. Check FB315, FB316

Yes

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6.4 Show “No signal” on screen.

Check that signal level of R612, R613, R614, R641, R642, R643, R644, R645, R646, R647, R648

Check the Hsync and Vsync

Failure point

1. IC401 failure.

2. Signal cable is disconnected.

Yes

6.5 Keypad cannot work.

Check the the cable is fully conneted between the interface

board and key board

1. D305, D306 ~ D311, D312 failure.

2. TACT switch failure.

Failure point

The cable is disconnected.

Yes

Failure point

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6.6 Figure of Waveform

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Item ViewSonic P/N Ref. P/N Description Location Q'ty

1 A-PC-0106-0193 3070000501 AC POWER CORD L1800 BLACK EURO 1

2 A-AU-0120-0033 3080005100 CABLE AUDIO L=1800 BLK PC99 1

3 A-VC-0101-0359 3080426400 CABLE D-SUB/D-SUB L1800 BLK 20276 1

4 A-PC-0106-0150 3090107600 AC POWER CORD L=1800 BLACK UL/CSA 1

5 M-SCW-0824-0410 3100300600 SCREW M M3*0.5*6 PAN C S+P S20C ZN

Panel BKT+BKT Hinge, I/F+PANEL

BKT,POWER BD+Panel BKT

6 M-SCW-0824-0734 3102710800 SCREW M M4*0.7*8 PAN C S S18C ZN YEL AC SOCKET GND 1

7 M-SCW-0824-0690 3105051501 SCREW M #4-40*7 HEXH #4-40*3 S18C NI CONN. D-SUB 4

8 M-SCW-0814-0691 3105120100 SCREW M M4*0.7*12 PAN C S+P S10C ZN YEL STAND ASSY+cabinet back 6

9 M-SCW-0814-0692 3105124000 SCREW M M4*0.7*6 PAN C S18C NI HINGE R&L+BKT ARM 6

10 M-SCW-0824-6793 3105125300 SCREW M M4*0.7*6 FF C S18C ZN BLK NYLCOK Cabinet Back+Panel BKT 2

11 M-SCW-0824-6793 3105125300 SCREW M M4*0.7*6 FF C S18C ZN BLK NYLCOK BKT ATM+BKT BASE 7

12 M-SCW-0824-0776 3105221000 SCREW M M3*0.5*6 FF C S18C ZN PANEL+Panel BKT 4

13 M-SCW-0824-0778 3105229400 SCREW M M3*0.5*10 FF C S18C ZN 2

14 M-SCW-0824-0007 3109010100 SCREW T f3*0.5*8 BIND C S18C ZN I/F BD+IC803 1

15 M-SCW-0824-0413 3109011400 SCREW T M3*0.5*6 BIND C S18C ZN YEL D-SUB BKT+Panel BKT 3

16 M-SCW-0824-0413 3109011400 SCREW T M3*0.5*6 BIND C S18C ZN YEL ARM REAR+BKT ARM 1

17 M-SCW-0814-0694 3109015000 SCREW T f3*1.27*8 PAN C S20C NI F/B+K/B 3

18 M-SCW-0824-0620 3109020500 SCREW T f4*1.6*10 PAN C S18C ZN YEL Cabinet Back+BKT Hinge 4

19 M-SCW-0824-0620 3109020500 SCREW T f4*1.6*10 PAN C S18C ZN YEL ARM FRONT+BKT ARM 4

20 M-SCW-0824-6795 3109023700 SCREW T M4*1.6*8 FPH C S18C ZN YEL Speaker R&L+F/B 4

21 M-MS-0808-9125 3110110900 NUT M3*0.5 AISI1018 2

22 M-MS-0808-8040 3110250000 WASHER SPRING SWRT CONN DVI-D 4

23 M-LB-0813-0785 3200158900 LABEL STICKER OD10 WHT HI-POT 1

24 M-LB-0813-0712 3200449700 LABEL WARING 0.125

25 M-MS-0808-9126 3200655300 NAME PLATE VSC 3-BIRD LOGO AL 14.5*10.0 FOR F/B ,REV:00 1

26 M-MS-0808-9127 3200655500 NAME PLATE AL VIEWSONIC L38 T1.2 FOR F/B ,REV:00 1

27 M-LB-0813-0384 3200712700 LABEL CONTROL 100*90 Stick on pallet 0.063

28 M-LB-0813-0551 3200744000 LABEL BAR CODE 55*15 VSC-G Stick on flow card ,REV:00 1

29 M-LB-0813-0696 3200753101 LABEL BAR CODE 76*121 VIEWSONIC 1

30 M-LB-0813-0759 3200930800 LABEL VER. CONTROL 20*20 VIEWSONIC Stick on Carton 0.167

31 M-LB-0813-0912 3201961301 LABEL ID 166*43 VSC VG810B REV:00 1

32 M-LB-0813-0913 3202005900 LABEL SERIAL 42*11 SONY 1

33 M-LB-0813-0914 3202009100 LABEL REISTRATION 40*16 1

35 M-LB-0813-0915 3202215900 LABEL MCU 11*11 POLYESTER 50# 0.13

36 M-LB-0813-0714 3202310700 LABEL HV WARNING 100*25 FOR I/V SHIELD CAN,REV:00 1

37 M-MS-0808-8303 3211024500 MYLAR 435*350 T.1 F/B ,REV:03 1

38 M-MS-0808-9128 3240216601 INSULATOR PP T.43 60.86*129 1

39 M-MS-0808-8608 3240956400 RUBBER HOLD PLUG OD4.9 H3.2 BLK CABINET BACK 4

40 PL-PD-0714-0067 3240956800 RUBBER FOOT 81*13*3T BLK BKT BSAE 2

41 M-MS-0808-8157 3240957400 SPONGE EVA 100*7 T1 BLACK BASE COVER 1

42 PL-PD-0714-0068 3240957500 RUBBER FOOT 75*10 T3 BKT BASE 2

43 M-MS-0808-8304 3240964900 RUBBER HOLD PLUG OD5.2 H3.8 GRAY ARM REAR 1

44 M-MS-0808-9129 3241132800 INSULATOR PC T.4 204*40 VG810 CABINET BACK&BK 1

45 C-BC-0302-0562 3360248500 CABINET BACK ABS MIDNIGHT GRAY1 S8LRC1LS 1

46 M-CV-0830-2397 3360916700 ARM FRONT ABS MIDNIGHT GRAY VG800B 1

47 M-CV-0830-2508 3360919301 ARM REAR ABS MIDNIGHT GRAY S8LBA2LS 1

48 M-CV-0830-2400 3361205800 COVER BASE ABS MIDNIGHT GRAY VG800B 1

49 C-BC-0302-0563 3368208501 R/C ASSY L18FMW05AAB S8LRC1LS 1

50 C-FP-0301-9917 3368302801 F/B ASSY L18FMW05ABB S8LFC1LS 1

51 M-MS-0808-8162 3421024500 CABLE CLAMP GROUNDING SPCC T.3mm K/B WIRE 1

52 PL-CL-0710-0034 3421095601 CLIP SUS301 T=0.4 1

53 M-BK-0805-0061 3460144800 BRACKET CONN SECC 41.7*30 T0.6 PANEL BKT+LVDS CABLE 1

54 M-MS-0808-8561 3460146100 BRACKET VESA SECC 110*20 T1 CABINET BACK 2

55 M-MS-0808-8563 3460146300 BRACKET KEYLOCK SECC 20.4*16.45*4.9 T.6 CABINET BACK 1

56 M-BK-0805-0038 3460163101 BRACKET D-SUB SECC 278.8*23.8 T.8 1

57 M-BK-0805-0039 3460163402 BRACKET PANEL SECC 394.8*324.4 T.8 LG 1

58 M-BK-0805-0040 3460163502 BRACKET HINGE SECC 204*63.5 T1.2 1

59 M-BK-0805-0041 3461234204 SHIELD CAN IF SPTE 296.3*198.7 T.3 1

VG810b Recommended Spare Parts List

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7. Recommended Spare Parts List

Item ViewSonic P/N Ref. P/N Description Location Q'ty

VG810b Recommended Spare Parts List

60 M-BK-0805-0042 3461234301 SHIELD CAN SPTE 226*62.8*18 T.3 1

61 M-MS-0808-9130 3461752700 HINGE-R SUS304 62*20 T2 1

62 M-MS-0808-9131 3461752800 HINGE-L SUS304 62*20 T2 1

63 M-BK-0805-0043 3461753201 BRACKET ARM SECC 156*126.1*153.6 T2 1

64 M-BK-0805-0044 3461753301 BRACKET BASE SECC 266.6*161.4 T2 1

65 M-MS-0808-8643 3472851200 CONDUCTIVE SPONGE 30*8.5*10 I/F DVI VOTTOM SIDE(EMI) 1

66 P-FM-0602-0836 3500116101 END BLOCK-BOTTOM L18FMW05AAB 704/40' 1

67 P-FM-0602-0837 3500116201 END BLOCK-TOP L18FMW05AAB 704/40' 1

68 M-MS-0808-9132 3500932402 PE BAG 640*580*.06T CLEAR 1

69 M-MS-0808-8762 3500937501 PE BAG 300*200*0.06T PACKING CABLE*4 1

70 M-MS-0808-9133 3510878400 CAP PAPER 1140*1050*120 BY SEA FOR 32 S 0.032

71 M-MS-0808-9134 3511208400 ANGLE PAPER 2190*55*55 T5 0.125

72 P-BX-0601-0923 3512252000 CARTON 556*252*522 VSC VG810B 3% FOR SPARE PA 1

73 M-MS-0808-8396 3520094201 PE BAG 260*155*0.1T 1

74 A-CD-VG810B 3532078200 CD-ROM VSC A-CD-VG810B-1 PUT IN MANUAL P 1

75 M-MS-0808-9135 3610171802 AC SOCKET ASSY VG810S 1

76 M-WR-0828-6619 3670479600 WIRE WITH HOUSING 2547 #28 L500 4P I/F TO SPEAKER 1

77 M-WR-0828-6620 3679007300 WIRE WITH HOUSING 20276 #30 L100 30P PANEL TO I/F 1

78 M-WR-0828-6621 3679007400 WIRE WITH HOUSING 20276 #30 L380 12P I/F TO K/B 1

79 E-SK-0412-0086 3790182900 SPEAKER ASSY L18FMR05AAB 2

80 M-WR-0828-0402 4010670000 WIRE CU 0.6 TNC 0.131

81 M-MS-0808-9136 3532076701 MANUAL PACKING ASSY VSC VG810B 1

82 M-LCD-0826-0161 5051801050 LCD 18.1" TFT PANEL XGA(LM181E06-A4M5) 1

83 B-IF-0222-0052 5600110123 LCD I/F BD ASSY L18FMR 05AAB 1

84 B-KB-0207-0045 5600110124 LCD FUN KEY BD ASSY L18FMR 05AAB 1

85 B-PS-0204-0058 5600110125 LCD POWER BD ASSY L18FMR 05AAB 1

86 B-SB-0221-0589 5600110126 LCD INVERTER BD ASSY L18FMR 05AAB 1

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