ViewSonic Ve510b-3 Manuale utente

(VE510s-3_VE510b-3_SM Rev. 1a Jan. 2006)

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

ViewSonic VE510s-3

Model No. VS10040-3W

15” Color TFT LCD Display

Service Manual

VE510b-3

ViewSonicCorporation Confidential–DoNotCopyVE510s-3_VE510b-3

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 aregistered 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 01/16/2006 InitialreleaseJamie Chang

ViewSonicCorporation Confidential–DoNotCopyVE510s-3_VE510b-3

TABLE OF CONTENTS

1. Precautions and Safety Notices 1

2. Specification 4

3. Front Panel Function Control Description

4. Circuit Description 18

5. Adjustment Procedure 29

6. Troubleshooting Flow Chart 58

7. Block Diagram 60

8. Recommended Spare Parts List 68

9. Exploded Diagram and Exploded Parts List 74

10. Schematic Diagrams 76

11. PCB Layout Diagrams 81

1. Precaution & Safety Notice

1. 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 guide line

2. Safety Check :

Care should be taken while servicing this LCD display. Because of the high voltage used in the inverter circuit. These

voltage are exposed in such areas as the associated transformer circuits .

3. 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 problem on the display .

4. LEAKAGE CURRENT HOT CHECK

4-1 Plug the AC cord directly into the AC outlet. Do not use an isolation transformer during this check.

4-2 Connect a 1500 ohm , 10 watt resistor , paralleled by a 0.15uF capacitor between each metallic part and a good earth

ground

4-3 Use an AC voltmeter with 1000 ohm / volt or more sensitivity and measure the AC voltage across the combination

1500 ohm resistor and 0.15uF capacitor.

4-4 Move the resistor connection to each exposed metallic part and measure the voltage.

4-5 Reverse the polarity of the AC plug in the AC outlet and repeat the above measurement.

4-6 Voltage measured must not exceed 1.5 volt RMS, from any exposed metallic part to the ground. A leakage current

tester may be used in the above hot check, in which case any circuit measured must not exceed 1.0 milliamp. In

the case of a measurement exceeding the 1.0 milliamp value, a rework is required to eliminate the chance of a shock

hazard .

To Metal Parts

AC VOLTMETER

1500 10W

0.15u

Earth Ground

ViewSonicCorporation Confidential–DoNotCopyVE510s-3_VE510b-3

Handling and Placing Method

Correct methods : Incorrect Methods :

Only touch the metal-frame of the panel or the front

cover of the monitor .

Do not touch the surface of the polarizer .

Surface of the panel is pressed by fingers & this may

cause “MURA “

Take out the monitor with cushion Take out the monitor by grasping the LCD panel.

That may cause “MURA“.

ViewSonicCorporation Confidential–DoNotCopyVE510s-3_VE510b-3

Correct methods : Incorrect Methods :

Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects .

That could scratch the surface of panel

ViewSonicCorporation Confidential–DoNotCopyVE510s-3_VE510b-3

Test Resolution & Fre

uenc

1024X768

60Hz

Test Ima

e Size Full Size

Factor

Default:

Contrast = 70%, Bri

htness = 100%

ut Connector

(

refer the a

endix A

)

D-Sub-1 = DB-15

(

Analo

Default In

ut Connector Defaults to the first detected in

Video Cable Strain Relief Equal to twice the weight of the monitor for

five minutes

Video Cable Connector DB-15 Pin out Com

liant DDC/2B

Video RGB

(

Analo

arate S

Video Im

edance 75 Ohms

(

Analo

, 100 Ohms

(

ital

)

Maximum PC Video Si

nal 950 mV with no dama

e to monitor

Maximum Mac Video Si

nal 1250 mV with no dama

e to monitor

nc Si

nals TTL

DDC/2B Com

liant with Revision 1.0

nc Com

atibilit

arate S

Video Compatibility

Shall be compatible with all PC type

computers, Macintosh computers, and

after market video cards

Resolution Compatibility

640 x 350, 640 x 400, 640 x 480, 720 x

400, 800 x 600, 832 x 624, 1024 x 768

Exclusions Not com

atible with interlaced video

2-1. GENERAL SPECIFICATION

Contrast and Brightness Controls

Video Signals

2-2. VIDEO INTERFACE

2. Specification

ViewSonicCorporation Confidential–DoNotCopyVE510s-3_VE510b-3

2-3. POWER SUPPLY

Internal Power Supply LI SHIN SLS0326D12357

ut Volta

e Ran

e 90 to 264 VAC

ut Fre

uenc

Ran

e 47.5 to 63 Hertz

Short Circuit Protection Out

ut can be shorted without dama

Over Current Protection 5.0 A t

ical at 12.0 VDC

Leaka

e Current 3.5mA

(

Max

)

at 254VAC / 60Hz

Efficienc

80 % t

ical at 115VAC Full Load

Fuse Internal and not user re

laceable

Power Dissi

ation 35 Watts

(

yp)

Max In

ut AC Current 1.5 Arms

90VAC, 0.75 Arms

180VAC

Inrush Current (Cold Start) 50 A (max) @ 115VAC

90 A (max) @ 230VAC

Power Supply Cold Start

Shall start and function properly when

under full load, with all combinations of

input voltage, input frequency, and

operating temperature.

Power Supply Transient Immunity

Shall be able to withstand an ANSI/IEEE

C62.41-1980 6000V 200 ampere ring wave

transient test with no damage.

Power Supply Line Surge Immunity

Shall be able to withstand 1.5 times

nominal line voltage for one cycle with no

damage.

Power Supply Missing Cycle Immunity

Shall be able to function properly, without

reset or visible screen artifacts, when ½

cycle of AC power is randomly missing at

nominal input.

Power Supply Acoustics

The power supply shall not produce

audible noise that would be detectable by

the user. Audible shall defined to be in

compliance with ISO 7779 (DIN

EN27779:1991) Noise measurements of

machines acoustics. Power Switch noise

shall not be considered.

Power Savin

eration

(

Method

)

VESA DPMS Si

nalin

On Mode < 30 W

(

yp)

/ 35 W

(

max

)

Active Off < 1 W

Recover

Time On Mode = N/A, Active Off < 3 sec

Power Consumption

ViewSonicCorporation Confidential–DoNotCopyVE510s-3_VE510b-3

2-4. ELECTRICAL REQUIREMENT

Horizontal / Vertical Frequency

Timing Table

Item Analog Digital Remark

1 640 x 350 @ 70 Hz, 31.5 KHz Yes No It might be not full screen.

And the position should

be in the center of

2 640 x 400 @ 60 Hz, 31.5 KHz Yes No

3 640 x 400 @ 70 Hz, 31.5 KHz Yes No

4 640 x 480 @ 50 Hz, 24.7 KHz Yes No

5 640 x 480 @ 60 Hz, 31.5 KHz Yes No

6 640 x 480 @ 67 Hz, 35 KHz Yes No

7 640 x 480 @ 72 Hz, 37.9 KHz Yes No

8 640 x 480 @ 75 Hz, 37.5 KHz Yes No

9 640 x 480 @ 85 Hz, 43.27 KHz Yes No

10 720 x 400 @ 70 Hz, 31.5 KHz Yes No

11 800 x 600 @ 56 Hz, 35.1 KHz Yes No

12 800 x 600 @ 60 Hz, 37.9 KHz Yes No

13 800 x 600 @ 75 Hz, 46.9 KHz Yes No

14 800 x 600 @ 72 Hz, 48.1 KHz Yes No

15 800 x 600 @ 85 Hz, 53.7 KHz Yes No

16 832 x 624 @ 75 Hz, 49.7 KHz Yes No

17 1024 x 768 @ 60 Hz, 48.4 KHz Yes No

18 1024 x 768 @ 70 Hz, 56.5 KHz Yes No

19 1024 x 768 @ 72 Hz, 58.1 KHz Yes No

20 1024 x 768 @ 75 Hz, 60 KHz Yes No

21 1024 x 768 @ 85 Hz, 68.67 KHz No No

*1. Tolerance ≥±2KHz.

*2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message without blanking.

Primary Presets

1024X768 @ 60Hz

User Presets

Number of User Presets (recognized timings) Available: 10 presets total in FIFO configurati

Timing

Horizontal Frequency

Vertical Refresh Rate

Maximum Pixel Clock

Sync Polarity

24 – 62 kHz

50 – 85 Hz

80 MHz

Independent of sync polarity.

ViewSonicCorporation Confidential–DoNotCopyVE510s-3_VE510b-3

Changing Modes

●Maximum Mode Change Blank Time for image stability : 5 seconds (Max), excluding

"Auto Adjust" time

●Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory setting

execute "Auto Adjust" by "0-Touch™"

●The monitor needs to do “Auto Adjust” the first time a new mode is detected

(see section “0-Touch™ Function Actions”)

●While running Change Mode, Auto Adjust or Memory Recall, the image shall blank

Front Panel Hardware Controls

[PW] : Power

[ 2 ] : Button 2

[Up] : Up arrow

[Dn] : Down arrow

[ 1 ] : Button 1

Short Cuts Function from the button(s)

Function descriptions

To immediately activate Contrast menu. It should be change to

Brightness OSD by push button [2]

Recall both of Contrast and Brightness to default

Reaction Time

2-5. FRONT PANEL CONTROLS AND INDICATORS

[ 1 ] + [Up] OSD Lock

Remark : All the short cuts function are only available while OSD off

[ 1 ] + [ 2 ]

Factory Mode

The Main Menu OSD include most of control functions.

Please refer to APPENDIX B (Main Menu OSD Table) for the detail.

[ 1 ] + [PW]

Main Menu Controls

[ 1 ] + [Dn]

Toggle 720x400 and 640x400 mode when input 720x400 or

Auto White Balance. (Not shown on user’s guide)

Power Lock

Front Panel Tactile Switch Controls (Head)

Main Menu[ 1 ]

Note 1: Power Button, Button 1 and Button 2 must be

one-shot logic operation. (i.e. there should be no

cycling)

OSD must fully appear within 0.5s after

Power Control, soft Power Switch.

Green – ON

Power Switch (Front Head)

Power LED (Front Head)

Orange – Active Off

Dark = Soft Power Switch OFF

[ 2 ]

[Up] or [Dn]

[Up] + [Dn]

Auto Image Adjust

[ 1 ] + [Up] + [Dn]

ViewSonicCorporation Confidential–DoNotCopyVE510s-3_VE510b-3

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