ViewSonic VS13518-1W Manual de usuario

Model No. VS13518-1W/2W

24" Wide LCD Monitor

(VX2450W_WM-LED-1SM Rev.1aJul. 2010)

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

Service Manual

ViewSonic VX2450W/WM-LED-1

reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or

computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical,

manual or otherwise, without the prior written permission of ViewSonic Corporation.

Disclaimer

ViewSonic makes no representations or warranties, either expressed or implied, with respect to the contents

hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose. Further,

ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents

hereof without obligation of ViewSonic to notify any person of such revision or changes.

Trademarks

Optiquest is a registered trademark of ViewSonic Corporation.

ViewSonic is a registered trademark of ViewSonic Corporation.

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

Revision History

Revision SM Editing Date ECR Number Description of Changes Editor

1a GG07/21/10

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Initial Release Sophia Kao

TABLE OF CONTENTS

1. Precautions and Safety Notices ...................................................................................... 3

2. Specification .................................................................................................................... 6

3. Front Panel Function Control Description ................................................................... 22

4. Electronic Circuit Theory................................................................................................. 39

5. Adjusting Procedure........................................................................................................43

6. Troubleshooting Flow Chart ........................................................................................... 71

7. Block Diagrams .............................................................................................................. 77

8. Schematic Diagrams ...................................................................................................... 78

9. PCB Layout Diagrams .................................................................................................... 84

11. Recommended Spare Parts List .................................................................................. 92

10. Exploded Diagram And Spare Parts List...................................................................... 88

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1. Precautions and Safety Notices

1. SAFETY PRECAUTIONS

This monitor is manufactured and tested on a ground principle that a user’s safety comes

first. However, improper used or installation may cause damage to the monitor as well as

to the user.

WARNINGS:

This monitor should be operated only at the correct power sources indicated on the

label on the rear of the monitor. If you’re unsure of the power supply in you residence,

consult your local dealer or Power Company.

Use only the special power adapter that comes with this monitor for power input.

Do not try to repair the monitor by yourself, as it contains no user-serviceable parts.

Only the qualified technician can repair it.

Do not remove the monitor cabinet. There are high-voltage parts inside that may

cause electric shock to human bodies.

Stop using the monitor if the cabinet is damaged. Have it checked by a service

technician.

Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power

cable immediately and consult your closed dealer.

Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth.

Apply non-ammonia based cleaner onto the cloth, not directly onto the glass screen.

Do not place heavy objects on the monitor or power cord.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety visual inspections

and the protection afforded by them cannot necessarily be obtained by using replacement

components rated for higher voltage, wattage, etc. Before replacing any of these

components read the parts list in this manual carefully. The use of substitute replacement

parts, which do not have the same safety characteristics as specified in the parts list, may

create shock, fire, or other hazards.

3. SERVICE NOTES

When replacing parts or circuit boards, clamp the lead wires around terminals before

soldering.

Keep wires away from high voltage, high temperature components and sharp edges.

Keep wires in their original position so as to reduce interference.

Adjustment of this product please refers to the user’ manual.

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4 HANDLING AND PLACING METHODS

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2. Specification

2.1 Introduction

1 LCD

PANEL

(1st

source)

Pane

Display Area

Optimum

Resolution

Pixel Pitch

Glass

Treatment

Contrast Ratio

Dynamic

Contrast

Viewing

ngle

LR,UD

Colors

Luminance

Response

Time

Backlight

Backlight Life

Mercury

(CR>=

10)

CMO M236H3-LA2

521.28mm(H)x293.22mm(V) 23.547” diagonal

color active matrix TFT LCD

1920x1080

0.2715 mm (H) x 0.2715mm (V)

Anti-Glare type, Hard-coating (3H)

1000 :1 (Typ.) 700:1(min)

10,000,000:1

170 Deg H and 160 Deg V (Typ.)

16.7 M (6-bits + Hi FRC)

300 cd/m2 (Typ.) / 250 cd/m2 (min)

Tr+Tf: 5ms (Typ.) / 8ms (Max.)

One light bar with White-LED

15000 Hrs (Min)

N/A (Typ.)

2 INPUT

SIGNAL

Video

Sync

RGB Analog (0.7 / 1.0 Vp-p , 75 ohms),

DVI-D (TMDS, 100ohms)

Separate Sync / Composite Sync / SOG

Fh = 24 – 83 kHz ; Fv = 50 – 75 Hz

3 COMPATIB

ILITY

Mac

PC Compatibles (from VGA up to 1920x1080

Non Interlaced)

Power Mac (up to 1920x1080 )

RESOLUTI

Recommende

Supported

1920x1080 @ 60Hz

640 x 350 @ 70Hz

640 x 400 @ 60, 70Hz

640 x 480 @ 50, 60, 67, 72, 75Hz

720 x 400 @ 70Hz

720 x 480 @ p60, i60Hz

720 x 576 @ p50, i50Hz

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800 x 600 @ 56, 60, 72, 75Hz

832 x 624 @ 75Hz

1024 x 768 @ 50, 60, 70, 72, 75,

75Hz

1152 x 864 @ 75Hz

1152 x 870 @ 75Hz

1152 x 900 @ 67Hz

1280 x 720 @ p50, p60Hz

1280 x 768 @ 50, 60, 75Hz

1280 x 960 @ 50, 60, 75Hz

1280 x 1024 @ 50, 60, 75Hz

1360 x 768 @ 60Hz

1440 x 900 @ 60, 75Hz

1400 x 1050 @ 60Hz

1600 x 1200 @ 60Hz

1680 x 1050 @ 60Hz

1920x1080 @ i50, p50, i60,

p60Hz

5 CONNECT

ORS

Video

Audio

Power

Analog

Digital

Audio In

D-sub

DVI ( Supported HDMI ver. 1.3 /Display port 1.1

spec)

3.5 mm jack (green ) for VX2450wm-LED

Internal Power Adapter, 3-pin plug (CEE22)

6 AUDIO Speaker 2.5Wx2 for VX2450wm-LED only

7 POWER Voltage

AC 100-240V (Universal); 50/60 Hz

8 ERGONO

MICS

Tilt

Swivel

Rotation

Height Adjust

20 ~ -5 degrees

N/A

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9 CONTROL

Physical

OSD Function

Key

buttons

on the

front

panel

Main

Short cut

key

[ Power ]

[ 1 ], [Up], [Dn], [ 2 ]

Auto Image Adjust

Contrast/Brightness

Input Select

D-SUB, DVI

Color Adjust

sRGB, 9300K, 7500K, 6500K, 5000K, User

Color [R, G, B]

Information

Manual Image Adjust

H/V Position, Horizontal Size, Fine Tune,

Sharpness,

Dynamic Contrast, Response Time, Aspect

Ratio , ECO Mode

Setup Menu

Language, Resolution Notice, OSD Position,

OSD Timeout,

OSD Background, Auto Power Off

Memory Recall

[ 1 ] : Main Menu

[ 2 ] : Input Select

[Up] or [Dn] : To immediately activate Contrast

and Brightness OSD Menu.

[Up] + [Dn] : Recall Contrast and Brightness to

default in its menu without OSD

message.

[ 1 ] + [ 2 ] : Toggle 720x400 and 640x400 mode

[ 1 ] + [Up] + [Dn] : Auto White Balance

[ 1 ] + [Dn] : Power Button Lock

[ 1 ] + [Up] : OSD Lock

[ 2 ] + [Dn] : Toggle DDC/CI and DDC/2B

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10BANDWID

Analog : 185 MHz

Digital : 165 MHz

11OPERATIN

CONDITIO

Temperature

Humidity

32°F to 104°F (0°C to 40°C)

20% to 90% (no condensation)

12STORAGE

SHIPPING

CONDITIO

Temperature

Humidity

-4°F to 140°F (-20°C to 60°C)°

5% to 90% (no condensation)

13DIMENSIO

Physical:

(W x H x D)

Packing (W x

H x D)

Display

w/ Stand

Wall

Mount

521.21 mm (W) x 403.71 mm (H) x

189.98mm (D)

20.52" (W) x 15.89" (H) x 7.48" (D)

521.21 mm (W) x 339.44 mm (H) x 49mm (D)

20.52" (W) x 13.36" (H) x 2.63" (D)

569 mm (W) x 495 mm (H)x126 mm (D)

22.4" (W) x19.5" (H) x4.9" (D)

14WEIGHT Net

Net (w/o

stand)

Gross

4.5 kg

4.05 kg

6.2 kg

REGULATI

ONS

UL, CUL, FCC-B (ICES), CB, CE, CES-003B,

ISO13406-2, TUV/GS, ERGO, TUV-S, NOM,

GOST-R, HYGIENIC (20 copies), CCC, BSMI,

PSB, C-TICK, MIC(KCC), SASO, WEEE, RoHS,

SASO, Ukraine

16RELIABILI

MTBF 100,000 Hr (Excluding Panel).

17POWER

SAVING

FUNCTION

"On"

"Active Off"

“Off”

Blue

AMBER

Normal

≦0.1 W

18LOGISTIC

Container

Load

(20' / 40')

Standard

20’: 560 pieces 40’: 1176 pieces for VSA only

20’: 656 pieces 40’: 1344 pieces for WW.

56 sets

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