ViewSonic VP181b-2, VP181s-2, VLCDS26063-2W, VLCDS26063-3W Service manual

Service Manual

ViewSonic VP181b/s-2

Model No.VLCDS26063-2W

VLCDS26063-3W

18” Color TFT LCD Display

ViewSonic

(VP181b/s-2_SM_682 - Rev. 1a – 05 2003)



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

Copyright

Copyright
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.

2003 by ViewSonic Corporation. All rights reserved. No part of this publication may be

¤

Revision History

Revision Date Description Of Changes Approval

1a 28/05/03 Initial Release DCN- 3385 F. Fan

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TABLE OF CONTENT

1. Precautions and Safety Notices........................................................................................... 1

2. Specifications........................................................................................................................ 2

3. Front Panel Function Control Description .........................................................................19

4. Circuit Description............................................................................................................... 27

5. Adjusting Procedure............................................................................................................31

6. Troubleshooting Flow Chart................................................................................................ 34

7. Mechanical Assembly...........................................................................................................41

8. Schematic Diagram................................................................................................................ 47

9. PCB Layout.............................................................................................................................57

10. Recommended Spare Parts List..............................................................................................59

11. Electrical Parts List............................................................................................................. 62

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1. Precautions and Safety Notices

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.

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2. Specifications

2.1. Scope

The following specifications are applicable to the VP181b/s-2 18.1inch color LCD monitor.

General Description (Quick Reference)

LCD LG 18.1” SXGA TFT MVA

Size

Effective Display Size

Pixel Pitch

Resolution

Brightness

Contrast Ratio

Color

Viewing Angle

Surface treatment

Input Signals RGB

Digital

Input connector Video input

USB up stream port x 1

USB down stream port x 4

Main IC GM5020

Display colors 16,777,216

Preset Timings SXGA/60Hz, 75Hz, 85Hz

XGA/60Hz, 70Hz, 75Hz, 85Hz

SVGA/56Hz, 60Hz, 72Hz, 75Hz, 85Hz

VGA/60Hz, 72Hz, 75Hz, 85Hz

Dos-text/70Hz

Synchronization Horizontal

Vertical

Non-interlaced

Resolution Horizontal

Vertical

Active Display

Area

Horizontal

Vertical

(Active display area is dependent upon signal timings)

18.1 inches diagonal

359.04mm x 287.232mm (typical)

0.280mm x 0.280mm

1280 x 1024 dot (SXGA)

2

250cd/m

(typ.), 200min

350:1(typ.), 200min

16,777,216

Up 80° Down 80° (type)

Left 80° Right 80° (type)

Anti-Glare /3H
Analog 0.7Vp-p/75Ω Positive Polarity

Separate sync TTL level

Composite sync

Sync-On-Green

TMDS.

mini D-sub 15pin x 1 ( analog )

DVI-I x 1 (analog + digital)

30KHz to 92KHz (Automatically)

50Hz to 85Hz (Automatically)

Max Pixel Rated 165MHz

1280 dots

1024 lines

359.04 mm (typical)

287.232 mm (typical)

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Power supply

rating

AC adapter input AC 90V~264V 50/60Hz

AC Power

Consumption

Current Rating AC input

Dimensions 399.4(W) x 327.6(H) x 70.2(D) mm

Weight(net) 5.0Kg (Without stand base)

Environmental

Conditions

Accessories AC power cord-UL

Regulatory

Standards

OSD Language English, French, German, Spanish, Finnish, Italian, Japanese, Traditional Chinese,

Others Tilt Angle 20° up /5° down

70W(Max.)

Less than 5W

DC input

Operation Temperature

Operating Humidity

Storage Temperature

Storage Humidity

AC power cord-Schuko

Analog VGA cable

DVI-D cable

USB cable

Viewsonic CD-Wizard

VS User Guide

Portrait Software on CDROM

UL, CSA or cUL, CB Report, CE, FCC-B, TUV/Ergo

(which covers ISO13406-2 and MPRIII), TUV/GS, CCC, GOST-R

PCBC (B Mark), SEMKO, DEMKO, FIMKO, NEMKO, BSMI, VCCI, PSB (Singapore

Safety), TCO’03 (for VP181s-2), TCO’99 (for VP181b-2), NOM and Argentina IRAM

(thru TUV).

Simplified Chinese

Height Adjust 110 mm

Swivel +

Rotate 0° ~ 90°

Power Saving System

VESA DDC2B compatible

45°

On mode

Active Off mode

1.5A @AC 100~240V

5.0A @DC 12.0V

410(W) x 453.8(H) x 250.2(D) mm (with stand base)

8.0Kg (With stand base)
0 to 50℃ (panel surface)

10 to 90% (no condensation)

-20 to 60℃

5 to 90% (no condensation)

1.8m

1.8m

1.8m

1.8m

1.8m

1

English

1

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2.2. Electrical Characteristics

2.2.1 Power Supply

2.2.1.1 AC Input (AC Adapter)

Input Voltage AC 90~264V

Frequency 47/63Hz

Power Consumption:

70W (max) on mode

less than 5W power save mode

Current Rating 1.5A @ AC100~240V

2.2.2 LCD

LCD LG panel (TFT-IPS)

Effective display size 359.04(H) x 287.232(V) mm (typ)

Pixel number 1280 x 1024 pixels

Color filter arrangement R.G.B. vertical stripe

Display method TFT, normally black

Drive method Active matrix (TFT) – IPS

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

Dot number 1280 x 1024 x 3dots

Backlight Edge-lighting type with 6 CCFLs

Brightness 200cd/m

Contrast ratio 200 : 1 (min)

Display color 16,777,216

Typical viewing angle Up 80° / down 80° / right 80° / left 80° (min)

Response time 30msec

18.1” / 46cm diagonal

(Cold Cathode Fluorescent Tube)

2

(min: center / all white)

2.2.3 Interface Signals

2.2.3.1 RGB Video Signals

2.2.3.1.1 Separate Sync. Signals

2.2.3.1.2 Sync on Green, Composite Sync

2.2.3.2 TMDS digital Signals

2.2.3.2.1 Video type

DVI 1.0 compliant

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Analog R,G,B 0 – 0.7Vp-p
Signal Level 75Ω± 5%

Sync Level TTL level

Sync Polarity independent

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2.2.3.3 Input Signal Connectors

2.2.3.3.1 Analog RGB Video Input: 15pin mini D-sub

PIN No. Separate Sync

1 RED

2 GREEN

3 BLUE

4 GROUND

5 GROUND

6 GROUND

7 GROUND

8 GROUND

9 +5V

10 GROUND

11 N.C

12 SDA

13 H. Sync

14 V. Sync

15 SCL

5 1

10

15

2.2.3.3.2 Digital TMDS DVI-D Connector

24 pins DVI-D connector pin assignment

Pin No. Signal Name Description

1 RX2- TMDS negative differential input, channel 2

2 RX2+ TMDS positive differential input, channel 2

3 GND Logic Ground

4 Reserved 4 Reserved. No connection

5 Reserved 5 Reserved. No connection

6 DDC-CLK DDC2B Clock

7 DDC-DAT DDC2B Data

8 Reserved 8 Reserved. No connection

9 RX1 TMDS negative differential input, channel 1

10 RX1+ TMDS positive differential input, channel 1

11 GND Logic Ground

12 Reserved 12 Reserved. No connection

6

11

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13 Reserved 13 Reserved. No connection

14 VCCX Power

15 GND Logic Ground

16 SENS SENSE Pin, Pull High

17 RX0- TMDS negative differential input, channel 0

18 RX0+ TMDS positive differential input, channel 0

19 GND Logic Ground

20 Reserved 20 Reserved. No connection

21 Reserved 21 Reserved. No connection

22 GND Logic Ground

23 RXC+ TMDS positive differential input, reference clock

24 RXC- TMDS negative differential input, reference clock

C1 Analog Red Analog Red signal

C2 Analog Green Analog Green signal

C3 Analog Blue Analog Blue signal

C4 Analog Horizontal sync Horizontal sync. Signal for analog interface

C5 Analog Ground Common ground for analog signals.

2.2.3.3.3 USB up stream port x 1 USB down stream port x 4

2.2.3.4 Signal Timing

2.2.3.4.1 User Timing mode memory.

Always do auto image adjust after timing mode change.

2.2.3.4.2 Timing mode change

Maximum time for mode change with auto image adjust 7 sec.

2.2.3.4.3 Signal timing t able

The factory test input video signal is defined as the following table:

Preset No. H. Sync

Frequency

MOD [1]

MOD [2]

MOD [3]

MOD [4]

MOD [5]

MOD [6]

MOD [7]

MOD [8]

MOD [9]

MOD [10]

MOD [11]

MOD [12]

MOD [13]

31.468±1.0KHz 70.0±1.0Hz

31.468±1.0KHz 70.0±1.0Hz

31.468±1.0KHz 59.94±1.0Hz

35.01±1.0KHz 66.67±1.0Hz

37.86±1.0KHz 72.81±1.0Hz

37.5±1.0KHz 75.0±1.0Hz

43.27±1.0KHz 85.0±1.0Hz

35.16±1.0KHz 56.25±1.0Hz

37.88±1.0KHz 60.32±1.0Hz

38.077±1.0KHz 72.19±1.0Hz

46.875±1.0KHz 75.0±1.0Hz

53.67±1.0KHz 85.0±1.0Hz

49.72±1.0KHz 74.5±1.0Hz

V. S yn c

Frequency

SYNC. POL.

H-Sync. V-Sync.

+ - 640 x 350(70) Text mode

- + 720 x 400(70) Dos test

- - 640 x 480(60) VESA STANDARD

- - 640 x 480(66) MAC

- - 640 x 480(72) VESA STANDARD

- - 640 x 480(75) VESA STANDARD

- - 640 x 480(85) VESA STANDARD

+ + 800 x 600(56) VESA STANDARD

+ + 800 x 600(60) VESA STANDARD

+ + 800 x 600(72) VESA STANDARD

+ + 800 x 600(75) VESA STANDARD

+ + 800 x 600(85) VESA STANDARD

- - 832 x 624(75) MAC

Video Mode Description

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MOD [14]

B

MOD [15]

MOD [16]

MOD [17]

MOD [18]

MOD [19]

MOD [20]

MOD [21]

MOD [22]

48.363±1.0KHz 60.0±1.0Hz

58.09±1.0KHz 72.08±1.0Hz

60.023±1.0KHz 75.0±1.0Hz

68.67±1.0KHz 85.0±1.0Hz

63.981±1.0KHz 60.02±1.0Hz

79.976±1.0KHz 75.0±1.0Hz

56.478±1.0KHz 70.07±1.0Hz

45.0±1.0KHz 60.00±1.0Hz

91.146±1.0KHz 85.02±1.0Hz

2.2.4 Luminance Control

Analog signal (6500K)

2

Over 200cd/m

(@ Cont/Bright max)

Digital signal (6500K)

2

Over 200cd m

(@ Cont/Bright max)

2.2.5 Synchronization

Horizontal 30 to 92KHz

Vertical 50 to 85Hz Non-interlaced

Maximum 85Hz @ 1280 x 1024 mode

Recommended 60Hz @ 1280 x 1024 mode

- - 1024 x 768(60) VESA STANDARD

- - 1024 x 768(72) VESA STANDARD

+ + 1024 x 768(75) VESA STANDARD

+ + 1024 x 768(85) VESA STANDARD

+ + 1280 x 1024(60) VESA STANDARD

+ + 1280 x 1024(75) VESA STANDARD

- - 1024 x 768(70) VESA STANDARD

- - 1280 x 720(60) 720P

+ + 1280 x 1024(85) VESA STANDARD

2.2.6 Display Characteristics

2.2.6.1 Picture size

Horizontal width 359.04 mm (typical)

Vertical width 287.232 mm (typical)

2.2.6.2 Optical Characteristics

General qualities: The following data was measured by BM7 of TOPCON data are panel optical data, for

analog signal there are +/- 5% tolerance.

Item Code Conditions Min. Typ. Max. Unit

Contrast CR White/Black at Image Center 200 350

White Brightness L VMAX Whole White 200 250

min

Uniformity of

Brightness

Response at 25

degree

Viewing Angle

Right

Left

Up

Down

Tpd

All white → All Black

All Black →All white

ΘR

ΘL

ΦH

ΦL

B

max

Center CR > 10

Luminance control All White (digital signal or analog 6500K)

Brightness at center of display surface

70

15

60 80

60 80

60 80

60 80

≧ 200 (cont / bright backlight

max)

――

15

――

―

―

―

―

―

―

Cd/m

%

ms

ms

Degree

Degree

Degree

Degree

cd / m

2

2

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These characteristics were measured under the following conditions:

k

Temperature ：77 ± 6°F, 25 ± 5°C

Viewing angle ：AU = 0° , AR =0°

Warm Up time ：minimum 30 minutes

Measuring instrument ：TOPCON BM-7 Luminance Meter

Measuring distance ：500mmn

Measuring angle ：2°

500mm

BM-7

2 Degree

Note 1: Contrast ratio is defined as the following formula.

Contrast ratio =

Note 2: Viewing angle is measured as follows:

Normal

=0=0

 L=90

X

6 o'clock

Y

 L=90

L

L

’

H

R

black""atpixelsall withBrightness

2 o'cloc

 H=90

Y

’

X

 R=90

white""atpixelsall with)(LuminanceBrightness

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Note 3: Definition of response time is as follows:

B

Response time is measured when the display data is changed from white to black.

White(TFT OFF )

Whit e

Optical
Response

Note 4: Judge points for brightness uniformity

Brightness uniformity is judged at nine (9) points on display area:

128 512 896

98

(9)

(8)

(7)

Black(TFT ON) White(TFT OFF )

100
90



10



0



T

R

T

F



B

(6)

(3)

min

384

670

BUNI =

max

Bmax：Maximum Brightness
Bmin：Minimum Brightness

2.2.6.3 LCD Panel

Mechanical

Active Area (mm) 359.04 x 287.232

Pixel pitch (mm) 0.280

Mass typical (g) 3100

Panel dimensions (W x D x H) mm 389 x 317 x 27mm (typ)

Resolution 1280 x 1024

Surface Treatment with Haze value Anti-glare, 3H

Panel Model number LM181E06-A4M5

Panel Interfaces Dual LVDS

(5)

(2)

(4)

(1)

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Optical performance

Contrast ratio

Luminance of white (center) 250 nits Typical

White Uniformity 70% (9 points measurement)

Chromaticity values (red, green, blue) center Red : Rx = 0.633, Ry =0.340

Color temperature CCT = 6500 K => Wx = 0.313, Wy = 0.329

Colors True 8 bits (16.7M)

Viewing Angle H, V (CR > 10) 160(typ)

Film Not used wide viewing film

Response time ms

Number of Back Light (CCFL) 6 – Edge type back light

Backlight (hrs) 40,000 hours minimum, 50,000 hours typical

2.2.7 Power Management

Unit will enter power saving mode under the following conditions:

Power Management condition and status

350：1 Typical
200：1 Minimum

200 nits Minimum

Green : Gx = 0.295, Gy = 0.600

Blue : Bx = 0.141, By = 0.096

Typical Tr = 15ms；Tf = 15ms
Maximum Tr = 25ms；Tf = 25ms

State

On Pulses Pulses Active On On Green

Stand-by No Pulses Pulses

Suspend Pulses No Pulses

Off No Pulses No Pulses

Complete N/A N/A N/A Off

2.2.8 Full Scan Capability

When the input display mode is not 1280 x 1024, the image area is changed as follows:

Flex Scan Mode

Expansion 1 640 x 350 2 2.93 1280 x 1024

Expansion 2 640 x 400 2 2.56 1280 x 1024

Expansion 3 640 x 480 2 2.13 1280 x 1024

Expansion 4 720 x 400 1.78 2.56 1280 x 1024

Expansion 5 800 x600 1.6 1.71 1280 x 1024

Expansion 6 832 x 624 1.54 1.64 1280 x 1024

Expansion 7 1024 x 768 1.25 1.33 1280 x 1024

Expansion 8 1152 x 864 1.11 1.19 1280 x 1024

Standard 1280 x1024 1 1 1280 x 1024

Horizontal Vertical Video

Input display Expanded Rate

Mode Resolution Horizontal Vertical

Signals

Blanking

Power

Supply

On

Vid eo

Circuit

Off Off

Expanded

Resolution

LCD LED

Amber

Off

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2.3. Mechanical Characteristics

2.3.1 Dimensions

339.4(W) x 327.6(H) x 70.2(D) mm

410(W) x 453.8(H) x 250.2 (D) mm (with stand base)

2.3.2 Weight (with stand base)

Net：8.0Kg

2.4. Packaging

2.4.1 Carton Box (with stand base)

Dimensions：523(W) x 455(H) x 298(D) mm
Color ：4-Color printing box
Material ：BC-FLUTE or Equivalent, double wall

2.5. Environmental Characteristics

2.5.1 Operating Conditions

Tem perature ：0Through+40℃
Humidity ：20% to 90% (39 degree welt bulb)
Altitude ：0- 3,000 meter

2.5.2 Non-operating Conditions

Tem perature ：-20 Through +60℃
Humidity ：21% to 90% (39 degree welt bulb)
Altitude ：0- 12,000 meter

2.6. Factory setting

2.6.1 OSD

Brightness 100% (based on 0-100%)

Contrast 70% (based on 0-100%)

Auto Tune Executed

Color Temperature 6500K

OSD Timeout 15 sec

Language English

OSD position Center

2.6.2 Power Switch

ON

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Appendix I Preset Signal Timings

H-Video

Horizontal

V-Video

Vertical

H active

H front H back

H pulse

H total

V active

V front

V pulse

V total

V back

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Analog timing mode table

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-8514A 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 21 22

Signal name Symbol XGA XGA XGA XGA SXGA 720P SXGA VESA

H-frequency (kHz) 56.476 58.099 60.023 68.677 63.981 45.000 79.976 91.146

V-frequency (Hz) 70.069 72.082 75.029 84.997 60.02 60.00 75.025 85.024

Pixel rate (MHz) 75.000 78.084 78.750 94.500 108 74.250 135 157.5

H-sync Ths 136 136 96 96 112 144 40 160

H-back porch Thb 144 160 176 208 248 248 270 224

Count num

(H-total)

H- front porch Thf 24 24 16 48 48 16 60 64

V-sync Tvs 6 6 3 3 3 3 5 3

V-back porch Tvb 29 29 28 36 38 38 20 44

Count num

(V-total)

V-front porch Tvf 3 3 1 1 1 1 5 1

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

V-sync Polarity Negative Negative Positive Positive Positive Negative Positive Positive

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

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

Thd 1328 1344 1312 1376 1688 1688 1658 1728

Tvd 806 806 800 808 1066 1066 750 1072

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Digital Timing mode table

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 96 64 40 56

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

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

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

V-sync Tvs 2 2 2 2 3 3 3

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

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

V-front porch Tvf 37 12 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-8514A 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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Appendix II EDID Code

VP181b-2

Analog

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 11 67 01 01 01 01 01 0c 01 03

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

30 99 24 18 50 54 BF EF 80 81 80

40 81 99 81 59 81 40 71 4F 61 59

50 45 59 31 59 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 31 5A

80 30 32 30 31 30 30 30 30 31 0A

90 00 00 00 FD 00 32 55 1E 5C 10

100 00 0A 20 20 20 20 20 20 00 00

110 00 FC 00 56 50 31 38 31 62 2D

120 32 0A 20 20 20 20 00 5C

Digital

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 11 67 01 01 01 01 01 0C 01 03

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

30 99 24 18 50 54 BF EF 80 81 80

40 81 99 81 59 81 40 71 4F 61 59

50 31 59 31 0A 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 31 5A

80 30 32 30 31 30 30 30 30 31 0A

90 00 00 00 FD 00 32 55 1E 5C 10

100 00 0A 20 20 20 20 20 20 00 00

110 00 FC 00 56 50 31 38 31 62 2D

120 32 0A 20 20 20 20 00 4D

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VP181S-2

Analog

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 16 B8 01 01 01 01 01 0D 01 03

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

30 99 24 18 50 54 BF EF 80 81 80

40 81 99 81 59 81 40 71 4F 61 59

50 45 59 31 59 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 52

80 30 33 30 31 30 30 30 30 31 0A

90 00 00 00 FD 00 32 55 1E 5C 10

100 00 0A 20 20 20 20 20 20 00 00

110 00 FC 00 56 50 31 38 31 73 0A

120 20 20 20 20 20 20 00 19

Digital

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 16 B8 01 01 01 01 01 0D 01 03

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

30 99 24 18 50 54 BF EF 80 81 80

40 81 99 81 59 81 40 71 4F 61 59

50 31 59 31 0A 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 52

80 30 33 30 31 30 30 30 30 31 0A

90 00 00 00 FD 00 32 55 1E 5C 10

100 00 0A 20 20 20 20 20 20 00 00

110 00 FC 00 56 50 31 38 31 73 0A

120 20 20 20 20 20 20 00 0A

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3. Front Panel Function Control Description

3.1. User control functions

Control buttons:

1. Press power button to power on whole LCD monitor set. Led on the power button will turn to green.

2. Press “2” button while no OSD will toggle the digital input port and analog input port to display.

3. Press “up” and “down” button simultaneously will reset the contrast and brightness to default value.

4. Press “1” button will enter OSD main menu.

3.2 Short Cuts Function from the button(s)

[ 1 ] Main Menu

[ 2 ] Select next input

(Sequence: D-SUBĺDVI-AĺDVI-D)

[ Down ] or [ Up ] arrow To immediately activate Contrast menu. It

should be change to Brightness OSD by push

button [ 2 ].

[ Down ] or [ Up ] arrow Recall Contrast or Brightness while in the

Contrast or Brightness adjustment, or recall

both of Contrast and Brightness when the OSD

is not open.

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

720x400 or 640x400 mode.

[ 1 ] + [ Down ] + [ Up ] White Balance.

[ 1 ] + [ Down ]

[ 1 ] + [ Up ]

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* Execute the function after the key buttons

been pushed by 5 sec.

* Color Adjust icon show on the center of

screen when adjusting white balance.

* Not show on user’s guide

Press for 10 sec to lock Power Button.

Press for 10 sec to lock OSD.

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3.3 OSD operation flow

The following steps show how to access the Main Menu, Submenus, and controls within each Submenu. Details on the

controls follow the steps listed below.

Note: Any OSD setting will only save after user totally exits the OSD menu.

1. Press the [1] button to display the Main Menu shown below.

2. Press the [▼] or [▲] button to scroll to the desired menu option.

3. Press the [2] button to select the menu option.

4. Press the [▼] or [▲] button to select submenu option.

5. After making adjustments, press the [1] button to exit the screen. You must exit the OSD to save the settings.

Auto Image Adjust

Press the [2] button to perform the autoadjust .

Note: Auto Image Adjust works with most common video card. If using the function does not work properly on the display,

Lower the video refresh rate to 60 Hz and try again. (See computer or graphic card user guide to adjust refresh rate.)

The panel may be manually tuned using the horizontal and vertical phase controls shown below.

Contrast

[▲] increase contrast, [▼] decrease contrast.

Shortcut: Before displaying the OnView menu, press the [▼] or [▲] button to adjust. Press button [2] to toggle between

brightness and contrast.

adjust foreground white level of screen image.

automatically sizes, centers, and fine tunes the video signal to eliminate waviness and distortion.

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Brightness

[▲] increase brightness, [▼] decrease brightness.

adjusts backlight brightness level of screen image.

Input Select

Color Adjust

Color Adust

saturation. Press button [2] to select the preset color. Press button [▼] or [▲] to fine tune the color response.

9300K—Adds blue to screen image for cooler white (used in most office settings with fluorescent lighting).

6500K—Adds red to screen image for warmer white and richer red.

5400K—Adds green to screen image for a darker color.

5000K—Adds blue and green to screen image for a darker color.

press [▼] or [▲] button to select Input Source.

provides four preset color adjustment: 9300K, 6500K, 5400K, 5000K for improved brightness and color

User color

1

2. Press button [2] to set adjustment and select next color to adjust.

—Individual adjustments for red (R), green (G), blue(B).

. To adjust selected color, press [▼] or [▲].

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Information

Manual Image Adjust

H/V Position Press the [2] button to select H-Position or V-Position.

H-Position

[▼] move screen image to left, [▲] moves screen image to right.

Press the [2] button to toggle between H. or V. Position.

moves screen image left or right.

V-Po sitio n

[▼] move screen image down, [▲] moves screen image up.

moves screen image up or down.

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H-Size adjusts the width of screen image. [▼] decreases

Width of screen image, [▲] increases width of image.

Fine tune

Sharpness adjusts the clarity of a non-SXGA (1280 x 1024) RGB signal Press [▼]or [▲]toadjust.

Scaling

Setup Menu

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Language Select allows the user to choose from available languages.

Resolution Notice press the [2] button to select the Enable or Disable the Resolution Notice.

Input Priority

OSD Position press the [2] button to select the OSD H-Position or OSD V-Position.

OSD H-Position

[▼] moves OSD left, [▲] moves the OSD right.

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OSD V-Position [▼] moves OSD down, [▲] moves the OSD up.

OSD Timeout

OSD Background

OSD pivot

sets the length of time the OnScreen Display screen is displayed before exiting.

Memory Recall

Returns the adjustments back to factory settings (only if the display is operating in a factory preset mode).

Press the [2] button to select the Memory Recall menu option.

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