ViewSonic VX715 - 17" LCD Monitor Bedienungsanleitung

Service Manual

ViewSonic VX715

Model No VS10057

17” Color TFT LCD Display

Manufacture Date: Jan-10-05

ViewSonic Corporation

transmitted, transcribed, stored in a retrieval system, or translated into any language or manual or otherwise, without the

prior written permission of ViewSonic Corporation.

Disclaimer

ViewSonic makes no representation or warranties, either expressed or implied, with respect to the contents hereof and

specifically disclaims any warranty of merchantability of 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 trademark used within this document is the property of their respective owners.

Revision History

Revision Date Description of changes Approval

A00 Jan-10-05 Initial Release

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TABLE OF CONTENTS

1. Precautions and Safety Notices 4

2. Specification 5

3. Front Panel Function Control Description 8

4. Function Module Description 14

5. Adjusting Produce 20

6. Trouble Shooting Flow Chart 28

7. Recommended Spare Parts List 34

8. Exploded Diagram and Spare Parts List 45

9. Block Diagram 47

10. Schematic Diagram 48

11. PCB Layout Diagram 53

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1.Precautions and Safety Notices

1.1 SAFETY PRECAUTIONS

This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper use

or installation may cause damage to the monitor as well as the user. Carefully go over the following WARNINGS

before installing and keep this guide handy.

WARNINGS

zThis monitor should be operated only at the correct power sources indicated on the label on the rear end of the

monitor. If you’re unsure of the power supply in your residence, consult you local dealer or power company.

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

zDo not try to repair the monitor yourself as it contains no user-serviceable parts. This monitor should only be

repaired by a qualified technician.

zDo not remove the monitor cabinet. There is a high-voltage part inside that may cause electric shock to human

bodies, even when the power cord is unplugged.

zStop using the monitor if the cabinet is damaged. Have it checked by a service technician.

zPut your monitor only in a clean, dry environment. If it gets wet, unplug the power cable immediately and consult

your service technician.

zAlways 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.

zKeep the monitor away from magnetic objects, motors, TV sets, and transformer.

zDo not place heavy objects on the monitor or power cord.

1.2 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 voltages, 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.

1.3 SERVICE NOTES

1. When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.

2. When replacing a high wattage resistor (more than 1W of metal oxide film resistor) in circuit board, keep the

resistor about 5mm away from circuit board.

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

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

5. Usage of this product please refers to also user’s manual.

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2. Specification

2.1 PRODUCT SPECIFICATIONS

LCDPanel 17.0”TFT

PowerManagement EnergyStarcompliantVESA

DPMScompatible

<1W

Recommend Resolution 1280 x1024@60Hz

PixelDimension 0.264(H)x0.264(V)mm

LCDDisplayColor 16.2MColors(6+2FRCbit)

ViewingAngle Horizontal:140deg

Vertical:130deg

ContrastRatio 450：1 (Typ.)

Brightness 300cd/㎡(Typ.)

ResponseTime Tr:6ms Tf:10ms(Typ.)

Active Display Area 337.920(H) x 270.336(V)

Temperature Operating:0°Cto+40°C

Storage:-20°Cto+60°C

Power InputVoltage:90V~264V

Consumption:35Watts(Max.) 32Watts(Typ.)

2.2 FACTORY SUPPORTING MODES

Primary Preset: VESA: 1280 x1024@60Hz

Timing Table: 1. 640 x 350 @ 70Hz, 31.5kHz

2. 640 x 400 @ 60Hz, 31.5kHz

3. 640 x 400 @ 70Hz, 31.5kHz

4. 640 x 480 @ 50Hz, 24.7kHz

5. 640 x 480 @ 60Hz, 31.5kHz

6. 640 x 480 @ 67Hz, 35.0kHz

7. 640 x 480 @ 72Hz, 37.9kHz

8. 640 x 480 @ 75Hz, 37.5kHz

9. 640 x 480 @ 85Hz, 43.27kHz

10. 720 x 400 @ 70Hz, 31.5kHz

11. 800 x 600 @ 56Hz, 35.1kHz

12. 800 x 600 @ 60Hz, 37.9kHz

13. 800 x 600 @ 75Hz, 46.9kHz

14. 800 x 600 @ 72Hz, 48.1kHz

15. 800 x 600 @ 85Hz, 53.7kHz

16. 832 x 624 @ 75Hz, 49.7kHz

17. 1024 x 768 @ 60Hz, 48.4kHz

18. 1024 x 768 @ 70Hz, 56.5kHz

19. 1024 x 768 @ 72Hz, 58.1kHz

20. 1024 x 768 @ 75Hz, 60.0kHz

21. 1024 x 768 @ 85Hz, 68.67kHz

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22. 1152 x 864 @ 75Hz, 67.5kHz

23. 1152 x 870 @ 75Hz, 68.7kHz

24. 1280 x 1024 @ 60Hz, 63.4kHz

25. 1280 x 1024 @ 75Hz, 79.97kHz

26. 1280x 720 @ 60Hz, 45kHz (HDTV)

2.3D-SUBCONNECTOR

610

11 15

D-SUB 15 PIN CONNECTOR

Pin Number Pin Function

1 Red video input

2 Green video input

3 Blue video input

4 No Connection

5 Ground

6 Red video ground

7 Green video ground

8 Blue video ground

9 +5V

10 H/V sync ground

11 No connection

12 (SDA)

13 Horizontal sync (Composite sync)

14 Vertical sync

15 (SCL)

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DVI 24 PIN CONNECTOR

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

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

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3. Front Panel Function Control Descriptions

Main Menu

With On View controls

Front Control Panel

Shown below in detail

Display the Main Menu.

or exits the control screen

and saves adjustments

1.Scrolls through menu options

and adjusts displayed control.

2.Also a shortcut to display the

contrast adjustment control screen

1. Display the control screen

for the highlighted control.

2. Also toggles between two

control on some screens

3. Also a shortcut to toggle

between analog and digital

connections.

Power light

Green = ON

Orange = Power Saving

Power

On/Off

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Do the following to adjust the screen image:

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

NOTE: All On View menus and adjustment screens disappear automatically after about 30 seconds.

2. To select a control you want to adjust, press ▲or ▼to scroll up or down the Main Menu.

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

4. To adjust the control press the up ▲or down ▼buttons.

5. To save the adjustments and exit the menu, press button [1] twice.

The following tips may help you optimize your display:

zAdjust your computer’s graphic card so that is outputs a video signal 1280×1024@60Hz to the LCD display.

zIf 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 is illuminated “active area” of the LCD

display.)

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Main Menu Control

Adjust the menu items shown below by using up ▲or down ▼buttons.

Control explanation:

Auto Image Adjust automatically sizes, centers, and fine tunes the video signal to eliminate waviness

and distortion.

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

Note: 1. Auto Image Adjust works with most common video card. 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.

2.The Auto Image Adjust and most Manual image Adjust functions are not available for DVI input

Contrast adjusts the different between the image background (black level) and the

fore

round

(

white level

)

Brightness adjusts background black level of the screen image.

Input Select allow you to toggle between an analog and a digital signal.

Color Adjust provides several color adjustment modes: preset color temperature and RGB which

allow you to adjust red (R), green (G), blue (B) separately. The factory setting for this product is

6500K (6500 Kelvin).

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.

9300K — Adds blue to the screen image for cooler white (used in most office setting with

fluorescent lighting).

6500K — Adds red to the screen image for warmer white (used in most office setting with

fluorescent li

htin

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