ViewSonic VG910S - 19" LCD Monitor Bedienungsanleitung

Model No. VLCDS27944-3W/-4W

19” Color TFT LCD Display

Service Manual

ViewSonic VG910s/b-1

ViewSonic

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

(VG910s/b_SM_721 Rev. 1aMar.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 03/03/04 Initial Release DCN-3605 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: FLC48SXC11V/M190EN02V2

LCD

Fujitsu

FLC48SXC11V

M190EN02V2

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

19.0 inches diagonal

376.32mm (H) × 301.056mm (V)

0.294mm (H) × 0.294mm(V)

1280×1024 (SXGA )

250cd/m2(Typ. )

600:1 (Typ.)

16,777,216 colors

Up 85° Down 85°(type)

Left 85° Right 85°(type)

4 CCFL

Input Signals Analog RGB 0.7Vp-p / 75Ω

Digital RGB DVI Ver1.0 (TMDS Single Link)

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

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

376.32 mm (typical, panel depends)

301.056 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

Net

Gross

Depth(head only)

422.4(W) x 382.1(H) x62.0 (D) mm

422.4(W) x 438.48(H) x 180.56(D) mm(With stand base)

180.56mm

Weight

Net

Gross

7.5 Kg

10.2Kg

Environmental

Conditions

Operating Temperature

Operating Humidity

Storage Temperature

Storage Humidity

0 to 40°C

20 to 85%

-20 to 60°C

5 to 85% (non-condensation)

Accessories AC cable

User Guide

CD Rom

Warranty Card

HD15 - HD15 cable

DVI(D) - DVI(D) cable

1.8m

English

2. Specification

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Regulatory StandardsUL, 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(VG910b),

TCO'03(VG910s), Energy, Energy Star, PCT, Taiwan Green Mark

Others Tilt Angle 20° up / 5° down

VESA DDC 2B compatible

2.2 Electrical Characteristics

2.2.1 Power Supply

AC Input Voltage AC 100~240V / 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 220 VAC

Power cord：detachable, 3P, 1.8m

2.2.2 LCD

LCD Active matrix thin-film-transistor (TFT)

Active screen size 19.0 inches (376.32mm × 301.056mm) diagonal

Pixel Format 1280 x 1024 (SXGA )

R.G.B. stripe arrangement

Display method TFT, normally Black

Pixel pitch 0.294 (H) x 0.294 (V) mm

Dot number 1280 x 1024 x 3 dots

Backlight Edge-lighting type with 4 CCFL

(Cold Cathode Fluorescent Lamp)

Brightness 250 cd/m2 (Typ.)

Contrast ratio600:1 (Typ.)

Display color 16,777,216 colors

viewing angle typical Up 85° / down 85° / right 85° / left 85°

(Contrast ratio≧10 at Ta=25°C / 77°F)

Response time Rise time 15mS, Fall time 10mS (Typ. at Ta=25°C)

2.2.3 Power Management

VG910 will enter power saving mode under the following conditions:

Power Management condition and status in AC 240V

Signals

State Horizontal Vertical Video

Power

Supply LED

On Pulses Pulses Active <60W Green

Pulse No Pulse

Active off No Pulse Pulse

Blank

<1W

Amber

No Pulses No Pulses

Out off scan range <30KHz ,

>82KHz

<50Hz ,

>85Hz

<60W Green

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AC power Off - - - Off Off

DC power Off - - - <1W Off

2.3 Video alignment

2.3.1 COLOR TEMPERATURE ALLIGMENT

a. APPLY VESA 1280x1024 / 60Hz , FULL WHITE PATTERN.( INPUT SIGNAL LEVEL

=0.7Vp-p )

b. AUTO WHITE BANLANCE MUST BE FINISH AT 32 GRAY PATTERN BEFORE AUTO

ALIGNMENT,

c. SET DEFAULT ÆCONTRAST TO 70% , BRIGHTNESS TO 100%

9300°K, 6500°K,：R G B SUB-BRIGHTNESS SET AS BELOW

9300°K 6500°K 5400°K 5000°K

R SUB-BRIGHTNESS 128 128 128 128

G SUB-BRIGHTNESS 128 128 128 128

B SUB-BRIGHTNESS 128 128 128 128

SET BRIGHTNESS = 255, BLACKLEVEL = 255 AT FACTORY DEFAULT.

2.3.2 DIGITAL ALIGNMENT

2.3.2.1 APPLY VESA 1280x1024 / 60Hz , FULL WHITE PATTERN ,

2.3.2.2 ADJUST R, G, B SUB-CONTRAST 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 SUB-CONTRAST TO MEET FOLLOWING

CHROMATICITY SPEC.

9300°K →x = 0.283 ±0.003, y = 0.298 ±0.003 , Y > 155 cd/m2

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 SUB-CONTRAST TO MEET FOLLOWING

CHROMATICITY SPEC.

6500°K →x = 0.313±0.003, y = 0.329 ±0.003 , Y > 190 cd/m2

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 SUB-CONTRAST TO MEET FOLLOWING

CHROMATICITY SPEC.

5400°K →x = 0.335 ±0.003, y = 0.350 ±0.003 , Y > 180cd/m2

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 SUB-CONTRAST TO MEET FOLLOWING

CHROMATICITY SPEC.

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5000°K →x = 0.346 ±0.003, y = 0.359 ±0.003 , Y > 180cd/m2

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 155cd/m2

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 190cd/m2

2. SET BRIGHTNESS =100% , CONTRAST=100% ,THE LUMINANCE

MEASURE SHOULD BE OVER 220cd/m2

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 180cd/m2

2.3.4.4 SET COLOR Temperature TO5000°K

APPLY VESA 1280x1024 / 60Hz , APPLY FULL WHITE PATTERN, ADJUST

OSD BRIGHTNESS = 100%, CONTRAST = 70%

1. THE BRIGHTNESS MEASURE SHOULD BE OVER 180 cd/m2

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 0.298 ±0.010 OVER 155 cd/m2

6500°K 0.313 ±0.010 0.329 ±0.010 OVER190 cd/m2

5400°K 0.335 ±0.010 0.350 ±0.010 OVER 180 cd/m2

5000°K 0.346 ±0.010 0.359 ±0.010 OVER 180 cd/m2

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○○

○Read EDID

2.4 Key function define

Key

“Vol -”

Key

“Vol +” 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

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2.5 EDID SERIAL NO. FORMAT

2.5.1 EDID for VG910s

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 DA 01 01 01 01 01 0D 01 03

20 0E 26 1E 78 2E 5E 35 A4 59 4A

30 98 25 10 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 78 2D 11 00

70 00 1E 00 00 00 FF 00 41 33 31

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 39 31 30 73 0A

120 20 20 20 20 20 20 00 7B

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 DA 01 01 01 01 01 0D 01 03

20 80 26 1E 78 2E 5E 35 A4 59 4A

30 98 25 10 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 78 2D 11 00

70 00 1E 00 00 00 FF 00 41 33 31

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 39 31 30 73 0A

120 20 20 20 20 20 20 00 D0

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