ViewSonic VS11444 Service manual

Service Manual

ViewSonic VX1945wm-3

Model No. VS11444

19” Color TFT LCD Display

(VX1945wm-3_SM Rev. 1a Nov. 2006)

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

Copyright

Copyright © 2006 by ViewSonic Corporation. All rights reserved. No part of this publication may be 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 11/7/2006 Initial Release Jamie Chang

ViewSonic Corporation i

Confidential - Do Not Copy VX1945wm-3

TABLE OF CONTENTS

1. Precautions and Safety Notices

2. Specification

3. Front Panel Function Control Description

6. Troubleshooting Flow Chart

7. Recommended Spare Parts List

10. Schematic Diagrams

11. PCB Layout Diagrams

1

4

53

55

59

60

67

1 4

26

36

45

ViewSonic Corporation

ii



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.


1


5.2 Handling and Placing Methods


2



3



2.1. INTRODUCTION

FEATURES VX1945wm-3

TFTLCD PANEL

1 st

Innolux

MT190AW01 V.0

Size

Luminance (Typ)

Contrast Ratio (Typ)

Colors

Response Time

Viewing Angle (H/V)

Recommend resolution

19 " wide

300 cd/㎡

700:1

16.2 M (6 bits + 2 bits FRC)

5 ms(on/off)

160 ° / 160 °

1440x900@60Hz

Input Signal

Output Signal

Sync Compatibility

Compatibility

Power Voltage

Power

Consumption

USB

Card reader

Audio

Video

Analog (Head)

Digital (Head)

3.5 mm Audio in (Head)

Yes (75ohms, 0.7/1.0 Vp-p)

Yes

Yes

Audio

3.5mm 2 in 1 Audio in (Base)

3.5 Audio out (Base)

Yes

Yes

Audio

Headphone out (Base)

Separate Sync

Composite Sync

Yes

Yes

Yes

Sync on Green Yes

PC Yes

Power Mac

TV Box (NextVision 6)

AC 100-240V, 50/60Hz

On Mode(Typ)

Yes

Yes

Yes

< 48 W

LCD

Multimedia base

Off Mode (Max)

On Mode(Typ)

On Mode (Max)

Upstream port (B type) X 1

Downstream port (A type) X 4

8 in 1 Function

2.1 CH - THD 10% (Max)

≦ 1 W

< 24 W

≦ 30 W

Yes

Yes

SD/MMC/MS/MS PRO/CF I & II /MicroDrive/SM

Yes

(Sat.: 2.5w x2 ; subwoofer:3w x1)

Ergonomics

Tilt ( 20 ° - -5 °) Yes

Swivel No

Pivot No

Height Adjust No

OSD Control

Dimension

Weight

[ 1 ] [ 2 ] [ ][▼] [▲] Yes

Physical (W x H x D)

Package (W x H x D)

Physical (Net Weight)

450 x 434 x 209mm

545*515*162mm

5.2 Kg / 11.5 lbs


4


Operating

Condition

Storage Condition

Regulation

Package (Gross Weight) 6.7 Kg / 14.8 lbs

Temperature (℉/℃) 32℉-104℉ / 0℃-40℃

Humidity (%) 20 % - 80 %

Temperature (℉/℃) -4℉-140℉ / -20℃-60℃

Humidity (%) 10% - 90 %

Global: CB, MPR II, WEEE,ROHS , ISO13406-2

VSA:UL, cUL, FCC-B, TUV-S, NOM, Energy Star

VSE:TUV/ERGO,CE ,GOST-R+Hygienic ,SASO , ENERGY

VSI: BSMI, CCC, PSB, C-TICK, MIC

VSCN:CCC

ViewDock – Multimedia base Spec.

Device prococal USB 2.0/1.1

USB Standards OHCI (Open Host Controller Interface)

Compatible Operating

Systems

USB Hub

USB Supplied Current

Upstream

Downstream

EHCI (Enhanced Host Controller Interface)

USB 2.0 Speed

USB 1.x Speed

Mac OS X with USB 2.0 Support

Microsoft Windows XP/Me/2000/98SE with USB 2.0 Support

Mac OS 8.6 or above with USB 1.x Support and USB Card Support

1.4.1

Microsoft Windows XP/Me/2000/98SE with USB 1.x Support

1 Upstream USB Type B Receptacle

4 Downstream USB Type A Receptacles

Self-Powered Mode: 500mA /Port

Idle Mode : 5mA /Port

Operating Mode: 100mA/Port

Secure Digital (SD)

Multi Media Card (MMC)

Compact Flash (CF) Type I

Compact Flash (CF) Type II

Card Reader

Micro

(SM)

4 slots

Memory Stick (MS)

Memory Stick Pro (MS Pro)

Audio / Speaker

XD

Upper Slot SMC/XD and SD/MMC

Lower Slot

Subwoofer

CF Type I/II and MS/MS Dual/MS Pro

3.0W (typ) ; 5.0W (Max)

Nominal size

S/N

Φ46mm

>85dB


5


MIC

THD

S/N

Sensitivity:

< 10% (Vol. Max)

60dB (Built-in)

-38dB +- 3dB

Rotation stopper strength: 1.0Kgf.cm control

Total rotational angle: 220+ 5˚

Audio I/O iPOD connector

Input

Output

2-in-1 Audio-in x 1 (Audio-in / MIC-in)

Audio-out x1 , Headphone out x1

Compatible with iPOD video/iPOD photo/iPOD nano/iPOD Mini/iPOD

U2/iPOD

Power adapter External

Input Voltage Range: 100~240V

Input Frequency: 50/60Hz

Output Voltage: 12V

Full load: 2.0A

Peak load: 2.5A

Size

Connectivity

303mm (W) x 212mm (L)

Up to 127 Devices by Cascading Multiple Hubs

Power on Yellow-Green iPod connecting Amber

Diagnostic LEDs iPod connecting+Power Yellow-green+Amber on

Power consumption Typical 24W

Max.

Storage Temperature

Storage Humidity

Certifications

Operating Temperature

Opreating Humidity

-4ºF to 140ºF (-20ºC to 60ºC)

10% to 90% (Non-Condensing)

32ºF to 104ºF (0ºC to 40ºC)

20% to 90% (Non-Condensing)

WEEE,ROHS

VSA:UL, cUL, FCC-B, TUV-S, NOM

VSE:CE ,GOST-R+Hygienic ,SASO

VSI:BSMI, CCC, PSB, C-TICK, MIC

VSCN:CCC

Accessories

Package content

USB A-B Cable ; 2-in-1 Cable ; Power adaptor ; iPod adapter set

(default x 1; 4 in set)

Viewdock/Quick start guide/CD(for card reader windows 98 driver)/2-in-1 Aduio cable/USB cable/Power adapter/iPod adapter set


6


2.2. GENERAL specification

Test Resolution & Frequency

Test Image Size

Contrast and Brightness Controls

1440x900 @ 60Hz

Full Size

Factory Default:

Contrast = 70%, Brightness = 100%

2.3. VIDEO INTERFACE

Analog Input Connector

Digital Input Connector

Default Input Connector

DB-15 (Analog),

DVI-D (Digital),

Defaults to the first detected input

Video Cable Strain Relief

Equal to twice the weight of the monitor for five minutes

Video Cable Connector DB-15 Pin out Compliant DDC 1/2B

Video Signals

Video Impedance

Maximum PC Video Signal

Maximum Mac Video Signal

Sync Signals

DDC 1/2B

1. Video RGB (Analog)

Separate, Composite, and Sync on Green

2. TMDS (Digital)

75 Ohms (Analog), 100 Ohms (Digital)

950 mV with no damage to monitor

1250 mV with no damage to monitor

TTL

Compliant with Revision 1.3

Sync Compatibility

Video Compatibility

Resolution Compatibility

Separate Sync, Composite Sync, SOG

Shall be compatible with all PC type computers,

Macintosh computers, and after market video cards

640 x 350*, 640 x 480, 720 x 400* (640 x 400*), 800 x

600, 832 x 624, 1024 x 768, 1152 x 864, 1152 x 870,

1280 x 720, 1280 x 960, 1280 x 1024 , 1400 x 1050 ,

1440 x 900

* The image vertical size might not be full screen.

But the image vertical position should be at the center.

Exclusions

2.4. POWER SUPPLY

Internal Power Supply

Input Voltage Range

Input Frequency Range

Short Circuit Protection

Over Current Protection

Not compatible with interlaced video

Part Number:ILPI-024

90 to 264 VAC (100~240VAC ±10%)

47 to 63 Hertz

Output can be shorted without damage

5.0 A typical at 14.0 VDC


7


Leakage Current

Efficiency (at 115VAC Full Load)

Fuse

Power Output

Ripple and Noise

Max Input AC Current

Inrush Current (Cold Start)

Power Supply Cold Start

Power Supply Transient Immunity

Power Supply Line Surge Immunity

3.5mA (Max) at 254VAC / 60Hz

Typical: 80%

Minimum: 75%

Internal and not user replaceable

35 Watts (typ)

Ripple: <3%

1.2 Arms @ 100VAC, 0.6 Arms @240VAC

40 A (max) @ 120VAC

60 A (max) @ 220VAC

Shall start and function properly when under full load, with all combinations of input voltage, input frequency, and operating temperature.

Shall be able to withstand an ANSI/IEEE C62.41-1980

6000V 200 ampere ring wave transient test with no damage.

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

Power Saving Operation(Method)

Power Consumption

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.

VESA DPMS Signaling

Recovery Time

On Green

Stand By

Active Off

Amber

Off

35 W (Typ)

42 W (max)

< 2 W

< 1 W

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


8


2.5. ELECTRICAL REQUIREMENT

Horizontal / Vertical Frequency

Horizontal Frequency 24-83 khz

50 – 85* Hz Vertical Refresh Rate

Maximum Pixel Clock

Sync Polarity

140 MHz

Independent of sync polarity.

Timing Table

Analog

Timing Remark

1 640 x 350 @ 70 Hz, 31.5 KHz

2 640 x 400 @ 60 Hz, 31.5 KHz

3 640 x 400 @ 70 Hz, 31.5 KHz

4 640 x 480 @ 50 Hz, 24.7 KHz

5 640 x 480 @ 60 Hz, 31.5 KHz

6 640 x 480 @ 67 Hz, 35 KHz

7 640 x 480 @ 72 Hz, 37.9 KHz

8 640 x 480 @ 75 Hz, 37.5 KHz

9 640 x 480 @ 85 Hz, 43.3 KHz

10 720 x 400 @ 70 Hz, 31.5 KHz

11 720 x 480 @ 60 Hz, 31.5 KHz

12 720 x 576 @ 50 Hz, 31.3 KHz

13 800 x 600 @ 56 Hz, 35.1 KHz

14 800 x 600 @ 60 Hz, 37.9 KHz

15 800 x 600 @ 72 Hz, 48.1 KHz

16 800 x 600 @ 75 Hz, 46.9 KHz

17 800 x 600 @ 85 Hz, 53.7 KHz

18 832 x 624 @ 75 Hz, 49.7 KHz

19 1024 x 768 @ 50 Hz, 39.6 KHz

For Analog sync, the image vertical size image will be not full screen (Still at the center)

For Analog sync, the OSD will be

640x480@60Hz

For Analog sync, the image vertical size image will be not full screen (Still at the center), And the

OSD will be 640x400/720x400 (primary=

720x400).

For Analog sync, the image vertical size image will be not full screen (Still at the center), And the

OSD will be 640x400/720x400 (primary=

720x400).

For Analog sync, the information OSD shows

640x480

For Analog sync, Switch 1024x768@50Hz and


9


1280x768@50Hz by [1]+[2] short cut key

20 1024 x 768 @ 60 Hz, 48.4 KHz

21 1024 x 768 @ 70 Hz, 56.5 KHz

22 1024 x 768 @ 75 Hz, 60 KHz

23 1024 x 768 @ 75 Hz, 60.02 KHz

24 1024 x 768 @ 85 Hz, 68.7 KHz

25 1152 x 864 @ 75 Hz, 67.5 KHz

26 1152 x 870 @ 75 Hz, 68.7 KHz

27 1280 x 768 @ 50 Hz, 39.6 KHz

28 1280 x 768 @ 60 Hz,

29 1280 x 768 @ 60 Hz,

30 1280 x 768 @ 75 Hz,

47.4 KHz

47.8 KHz

60.3 KHz





31 1280 x 960 @ 50 Hz, 49.4 KHz

32 1280 x 960 @ 60 Hz, 60.0 KHz

33 1280 x 960 @ 75 Hz, 75.2 KHz

34 1280 x 1024 @ 50 Hz, 52.7 KHz

35 1280 x 1024 @ 60 Hz, 64 KHz

36 1280 x 1024 @ 70 Hz, 74.8 KHz

37 1280 x 1024 @ 72 Hz, 76.8 KHz

38 1280 x 1024 @ 75 Hz, 80 KHz

39 1360 x 768 @ 60 Hz, 47.7 KHz

40 1400 x 1050 @ 50 Hz, 54.1 KHz

41 1400 x 1050 @ 60 Hz, 64.7 KHz

42 1400 x 1050 @ 60 Hz, 65.3 KHz

43 1400 x 1050 @ 75 Hz, 82.3 KHz

44 1440 x 900 @ 60 Hz, 55.5 KHz

45 1440 x 900 @ 60 Hz, 55.9 KHz

46 1440 x 900 @ 75 Hz, 70.6 KHz

*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.

*3. The image quality of 85Hz mode might be worse than 75Hz.


10


2.6

TFT LCD PANEL

Panel Characteristics:

1 st

Source Panel

Model number

Type

Active Size

Pixel Arrangement

Pixel Pitch

GLASS TREATMENT

# OF BACKLIGHTS

BACKLIGHT LIFE

Luminance (5-point) –

Condition:

CT = 6500K, Contrast = Max,

Brightness = Max

Brightness Uniformity

Contrast Ratio

Color Depth

Viewing Angle (Horizontal)

Viewing Angle (Vertical)

Response Time

10%-90% @ Ta=25°C

Panel Defects

INNOLUX MT190AW01 V.0

TN type with LVDS interface

19” WIDE ; 410.4(H) X 256.5(V)

RGB Vertical Stripe

0.285(H) x 0.285(H) mm

Anti Glare (Hard coating 3H)

4 CCFL ; Top & Bottom edge side

40,000 Hours (Min)

300 cd/m2 (Typ after 30 minute warm up)

230 cd/m2 (Min after 30 minute warm up)

≧75% Entire Area (min)

700:1 (typ), 500:1 (min)

16.2 million colors (6 bits + 2 bits FRC)

@ CR>10

Typical: 160º

Minimum: 140º

@ CR>5

Typical: TBD

Minimum: TBD

@ CR>10

Typical: 160º

Minimum: 140º

@ CR>5

Typical: TBD

Minimum: TBD

Typical = 5ms (Tr = 1.5

ms,Tf = 3.5

ms)

Maxmum = 15ms (Tr = 6.5

ms,Tf = 8.5

ms)

Please see Panel Quality Specifications.


11


Function descriptions

OSD Lock short cuts function for the buttons

The OSD lock will be activated by pressing the front panel control buttons "(1), & (▲)" for 10 seconds. If the user then tries to access the OSD by pressing any of the buttons "1", "▼",

"▲", "2" a message will appear on the screen for 3 seconds showing "OSD Locked". The

OSD lock will be deactivated by pressing the front panel control buttons "(1), & (▲)" again for

10 seconds.

Note1: When the OSD is locked will lock all functions, including “Volume” and “Mute”

Note 2: Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate “OSD Locked”

Note 3: OSD Lock should not lock Power Button and Power Lock function

Power Lock short cuts function for the buttons

The power button lock will be activated by pressing the front panel control buttons "(1), & (▼)" for

10 seconds. Locking the power button means that the user won't be able to turn off the LCD while the power button is locked. If the user presses the power button while it is locked, a message will appear on the screen for 3 seconds showing "Power Button Locked". It also means that with the power button locked, the LCD would automatically turn back "On" when power is restored after a power failure. If the power button is not in the locked mode, then power should return to it's previous state when power is restored after a power failure. The power button lock will be deactivated by pressing the front panel control buttons "(1), & (▼)" again for 10 seconds.

Note 1: Status bar indicating Power Button lock or unlock is in progress and when complete it will indicate “Power Button Locked”

Note 2: Power should only be lockable in the “On State”

Memory Recall Actions

Memory Recall action on the analog and digital mode as below

1. Recall white balance to factory setting

2. Set the factory defaults as shown in Section 4-8

3. Clean all the mode setting buffer

4. Execute Auto Image Adjust

Note: Memory Recall should have no effect for Language, Power Lock, User Color Settings or

Input Priority

Resolution Notice Actions

Resolution Notice OSD should show on screen after changing to non-native mode for 30 sec

For auto input select function, it shall meet the requirement in Appendix D.

The OSD should disappear after 10 sec or by pushing button [1] or [2]

Resolution Notice function should be disabled when push button [2] under Resolution Notice

OSD

0-Touch™ Function Actions

1. Execute Auto Image Adjust when new mode detected, and save the settings to buffer for


12


further use

2. It should be reset by Memory Recall function(Should not reset by power off, power unplug and others)

OSD Auto Save

The OSD shall save new settings when it is turned off by the user or when it times out. There shall not be a separate save

Factory Defaults

Item Defaults Item Defaults

N/A

Color Temperature 6500K Volume N/A

OSD H. Position

OSD V. Position

OSD Time Out

50%

50%

15 Sec

Treble

Bass

OSD Background Enabled

2.7 AUDIO INTERFACE (SPEAKER SPECIFICATION)

Line input signal

Line input impedance

1 Vrms

10 kOhm

Maximum Amp power output (Watt) 2.0 W (RL=8Ω)

Speaker Power rating(Ω/Watt) 8Ω/2 W (typ.) ; 8Ω/ 3 W (max)

N/A

N/A

THD

Signal to Noise Ratio

Frequency response

SPL.

Line input connection

10% (Maxmum output @ 1KHZ)

75 dB

200 Hz – 20 Khz

82 ± 3 dB

3.5 mm stereo jacks

Vibration

There should be no audible vibration resonance at volume=100% & treble / bass in def. value

Screen image

There should be no affect on the screen image stability under any conditions

Connector PC99 requirement Audio in Lime Green pantone # 577C

Cable type / length

Audio DPMS

3.5mm stereo cable / 1.8m length

Speakers stay Off when the rest of the monitor is in power saving

Note: There is no guarantee <2 W at power consumption in Active Off mode, when the Audio

Cable is connected


13



Adjusting the Screen Image

Main Menu with OSD controls

Front Control Panel shown below in detail

Displays the control screen for the highlighted control.

Also toggles between two controls on some screens.

Also a shortcut to Auto Image

Adjust.

Displays the Main

Menu or exits the control screen and saves adjustments.

Standby Power On/Off

Power light

Blue = ON

Orange = Power Saving

Scrolls through menu options and adjusts the displayed control.

Also a shortcut to display the Contrast adjustment control screen.


14


Do the following to adjust the display setting:

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

NOTE: All OSD menus and adjustment screens disappear automatically after about 15 seconds. This is adjustable through the OSD timeout setting in the setup menu.

2. To select a control to adjust, pressSorTto scroll up or down in the Main Menu.

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

The command line at the bottom of the control screen tells what to do next from this screen. You can toggle between control screens, adjust the selected option, or exit the screen.

4. To adjust the setting, press the up S or down T buttons.

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

The following tips may help you optimize your display:

• Adjust the computer's graphics card so that it outputs a 1440 x 900 @ 60Hz video signal to the LCD display. (Look for instructions on “changing the refresh rate” in the graphics card's user guide.)

• If 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 the illuminated “active area” of the LCD display.)


15


Main Menu Controls

Adjust the menu items shown below by using the up S and down T buttons.

Control Explanation

Auto Image Adjust sizes and centers the screen image automatically.

Contrast adjusts the difference between the image background (black level) and the foreground (white level).

Brightness adjusts background black level of the screen image.

Input Select toggles between inputs if you have more than one computer connected to the VX1945wm.

Audio Adjust

Volume increases the volume, decreases the volume, and mutes the audio.

Mute temporarily silences audio output.

Color Adjust provides several color adjustment modes, including preset color temperatures and a User Color mode which allows independent adjustment of red (R), green (G), and blue (B). The factory setting for this product is 6500K

(6500 Kelvin).


16



sRGB-This 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 settings with fluorescent lighting).

7500K - Adds blue to the screen image for cooler white (used in most office settings with fluorescent lighting).

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

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

User Color Individual adjustments for red (R), green (G), and blue (B).

1. To select color (R, G or B) press button [2].

2. To adjust selected color, pressSandT.

Important: If you select RECALL from the Main Menu when the product is set to a Preset Timing Mode, colors return to the 6500K factory preset.

Information displays the timing mode (video signal input) coming from the graphics card in the computer, the LCD model number, the serial number, and the ViewSonic ® website URL. See your graphics card’s user guide for instructions on changing the resolution and refresh rate (vertical frequency).

NOTE: VESA 1440 x 900 @ 60Hz (recommended) means that the resolution is

1440 x 900 and the refresh rate is 60 Hertz.


17



Manual Image Adjust Sub-menu

H. Size (Horizontal Size) adjusts the width of the screen image.

H./V. Position (Horizontal/Vertical Position) moves the screen image left or right and up or down.

Fine Tune sharpens the focus by aligning text and/or graphics with pixel boundaries.

NOTE: Try Auto Image Adjust first.

Sharpness adjusts the clarity and focus of the screen image.

Setup Menu displays the menu shown below:

Language Select allows the user to choose the language used in the menus and control screens.


18



Resolution Notice allows the user to enable or disable this notice.

If you enable the Resolution Notice shown above and your computer is set at a resolution other than 1440 x 900, the following screen appears.

OSD Position allows the user to move the OSD menus and control screens.

OSD Timeout sets the length of time the OSD screen is displayed. For example, with a “30 second” setting, if a control is not pushed within 30 seconds, the display screen disappears.

OSD Background allows the user to turn the OSD background On or Off.

Memory Recall returns the adjustments back to factory settings if the display is operating in a factory Preset Timing Mode listed in the Specifications of this manual.


19


ViewDock

TM

Key Features

Features

The VX ViewDock comes with the following advanced features:

• 4-port USB 2.0 hub (USB 1.1 compatible)

• 8-in-1 card reader (SD, MMC, MS, MS Pro, CF I & II, MD, SMC)

• 3-watt subwoofer support

• iPod docking & charging

• Headphone jack and built-in microphone

System requirements

For optimal use with the ViewDock, the computer should have the following minimum system requirements:

Hardware requirements

• Pentium 200 CPU or higher

• CD-ROM for driver installation

• USB2.0/1.1 interface

• 32 MB memory

Software Requirements

• Microsoft Windows 98SE/2000/ME/XP

• MAC OS 8.5+ or higher version.


20


Physical Description

Please refer to the following illustrations to identify the components of the ViewDock.

Front View

Sub-Woofer iPod connector

Rear view

Volume Control Phone Jack

Power

MIC

USB Hub

USB Hub

Card Reader

Audio In

Power Jack

Audio Out

USB Connector


2 1


Card Reader Installation

Refer to the following information

After connecting the ViewDock to your PC, Windows File Manager will show 4 extra icons.

Step1. Please check your card socket

Step2. Insert your memory card. Each slot of the card reader will be recognized as a

Removable Disk and the icon will be shown in "My Computer" of Windows

You do not need to install any special drivers for the Card Reader if your OS is Windows 2000/

ME/XP.

Card reader Installation guide for Windows 98SE :

(Please do not connect the ViewDock to your PC's USB port before running the CD):

1. Insert the driver CD into the CD-ROM

2. Please launch the .exe file and the driver will be installed automatically.

3. After completing installation, connect the ViewDock to your PC's USB port. The card reader is now operational.

4. Each slot of the card reader will be recognized as a Removable Disk and the icon will be shown in "My Computer."


2 2


USB Hub Installation


Downstream port

Connect to device

Type A female

Connect any USB devices via the USB ports on the ViewDock.

Windows will auto detect and install the generic Windows USB driver for USB 1.1/2.0 device operation.

You do not need to install any special drivers for the USB Hub if your OS is Windows 2000/

ME/XP.

USB hub installation guide for Windows 98SE :

Insert the included CD into the CD-ROM drive. The Autorun feature will automatically begin the installation process. Follow the instructions on the screen to install the driver.

If the setup program does not start automatically, go to "My Computer" and double-click on the CD-ROM drive, and select "Setup.exe" from the CD.

Note: If USB device is not detected , does not work properly:

1. Double click the "System" icon in Control Panel.

2. Select the "Device Manager" tab from System Properties dialog window.

3. Select "Other devices" to see the contents.

4. Select "Unknown device" and click "Remove" button.

5. Click the "Refresh" button and system will find a new device.


2 3


ViewDock

TM

Connecting with iPod


1. Make sure the ViewDock power is ON.

2. Dock your iPod into the universal iPod docking station with the appropriate adapter insert.

3. The iPod LED indicator will turn on amber

4. Wait for a few seconds for the iTunes software to launch.

5. Play your favorite song with iTunes software (for all iPod models) or play music from iPod directly (excluding iPod shuffle.) iPod adapter insert description: iPod with video adaptor is a default setting for multimedia base.

2.

3.

Adapter No.

1.

4.

5.

Work with Ipod models iPod nano iPod mini (1st/ 2nd Generation) iPod Vedio iPod with color display (20G/U2) iPod with Click Wheel (20G/U2) iPod with color display (30G) iPod with dock connector (10/15/20G) iPod with color display (60G) iPod photo (40/60G) iPod with Click Wheel (40G) iPod with dock connector (30/40G)

Subwoofer Volume Control


1. Adjust subwoofer volume via volume control

2. "

3. "

" Turn right to increases the subwoofer volume.

" Turn left to decreases the subwoofer volume.

4. In order to obtain the optimum listening environment, please adjust the volume of stereo speakers in the monitor head via the monitor OSD menu to match and balance the subwoofer volume.


2 4


4. Circuit Description

4.1 Switching Mode Power Supply

4.1.1 AC Current Input Circuit

P801 is a connector for connecting AC Power. F801 is a fuse to protect all the circuit. AC input voltage is from 90v to 264V. R801 and R802 joined between two inputting main circuit to prevent man from shock. L801 is used to clear up low frequency wave. C801 and C802 are used to discharge the waves that L801 produced.

High frequency waves are damped by C801 and C802. D801 is a rectifier which composed of 4 build-in diodes, it inverts AC to DC.

4.1.2 High Voltage to Low Voltage Control Circuit

C804 is used to smooth the wave from rectifier. IC802 is a highly integrated PWM controller. When rectified

DC high voltage is applied to the HV pin during start-up, the MOSFET Q804 is initially off, and the Vcc pin capacitor is charged. When the Vcc pin voltage reaches approximately 10V, the control circuitry is activated and the soft-start begins. The soft-start circuit gradually increases the duty cycle of the MOSFET from zero to the maximum value over approximately 4ms. If no external feedback/supply current is fed into the FB pin by the end of the soft-start, the current Setpoint will be above the fault level, FAULT flag is raised, if the FAULT duration exceeds 80ms, the output controller disable

Resistor R808, R809, R810, R811 are for line over voltage shutdown(OVP)

When PWM is turned off, the main current flow will be consumed through R804 and D802, This will prevent MOSFET Q804 from being damaged under large current impulse and voltage spike.

D803 and C807 to provide internal Auxiliary voltage to Vcc pin during normal operation. Otherwise, error amplifier and feedback current input the FB pin for duty cycle control.

4.1.3 DC_5V and DC_14V Output Circuit

For DC 5V, D805 is used to rectify the inducted current. R828 and C814 are used to store energy when current is reversed. The parts including C818, C822, C820,L803 are used to smooth the current waves.

For DC 14V, D803 is used to rectify the inducted current. R827 and C813 are used to store energy when current is reversed. The parts including C815, C817 and L802 are used to smooth the current waves.

4.1.4 Feedback and OVP Protect Circuit

Pin R of IC803 is supplied 2.5-v stable voltage. It connects to 5V and 14V output through R822, R823 and R824. R822, R823 and R824 are output sampling resistor. When the sampling voltage more than 2.5V or less than 2.5V, current of FB IC802 will change, this can change the voltage from T801.

OVP Protect Circuit: When output is overvoltage, the auxiliary winding voltage will be increased, when it reaches about 14V. Q803 is triggered . It makes the IC802 Pin 1 exceed 5V, then the IC802 output will be disabled.

Q801, R816, R817 and ZD803 make up of dummy loading circuit. For start-up sequence, during 5V output take place high loading first, this dummy loading circuit operated to insure 14V not be increased.

4. 2 Inverter Circuit


2 5


1R503, ZD501, R502, Q501 components convert +14V voltage into +5.0V voltage, and the voltage supply to IC501. The extra PWM pulse signal (BRIGHTNESS signal)input to control IC through R512, R514,

C510, The LCT pin is set to a DC voltage of 0.7V by using a resistor divider(R507, R516), change the duty of

PWM pulse, will regulate the lamp current. The ON/OFF voltage connect to pin10 of IC501 through D501,

R501, A voltage of 2V to pin10 of IC501 enables the IC and activates the striking timer. The SSTCMP pin of

IC501 performs the soft function, the C511 set the time of SST. The operation frequency determined by external capacitor C512, C521 and resistor R508 connected at CT pin of IC501. C515 connect the TIMER pin of IC501, the capacitor to set striking time and shunt down delay time. DRV!, DRV2 output for power MOSFET

U501, U502.

2.OZ9938 provides two drive signals forU501, U502, and they work in push pull topology driving, two transformers are connected in parallel with each transformer driving two lamps in series.Turningeach

N-Channel MOSFET “on/off” complementarily, produces an alternating current through thetransformer primary and secondary. The “on” duration of the switches determines the amount of energy delivered to the CCFLs.

R504, C504, R505, C505, R532, C529, R530, C522 are snubber networks, they suppress Voltage transient spike in drain of power MOSFET.

3. R506, R510, C509, C513, C514, R525, R531, C528, C525, and C527 are connected betweenhigh voltage output connector and ground, the divided AC voltage is inverted DC voltage through D502, D503,

D508, and D509.The sense voltage feedback to VSEN (pin 6 of IC501) for an over voltage/over current condition during normal operation. R528, R533 are current sense resistor, current sense signal feed back to

Isense (pin 5 of IC501) for lamp “ON” detection.

4.3 I/F Board Circuit

4.2.1 Power Input

+5V is from the power board and supply for U101(LD1117AL-3.3V)､U105(TSUM56AL-1) and panel. +3.3V output is generated from +5V through C101 and C103 filtering, and U101 outputs. +3.3V is used for U105

(MCU & Scaler: TSUM16AL). +1.8V output is generated from +3.3V through U102 outputs. +1.8V is only used for U105.

4.2.2 MCU & Scaler(TSUM16AL)

The frequency of XTAL1 is 14.318MHz. U105 # 48 is defined as panel-enable. When the I/O port is high,

Q101 and Q103 are conducted. And then after C108 and C109 filtering, obtain the voltage of VLCD, which will be connected to CN104. U105 # 85 is defined as CCFL-enable. When the I/O port is low, Q106 is pulled up and the backlights are on; When the I/O port is high, Q106 is conducted and the backlights are off. U105 # 35 is defined as DET-VGA, connected with CN103 #5. U105 # 84 is a pin of hardware reset. U105 # 54-# 55,#

58-# 65, # 67-# 74, # 77-# 78 output LVDS digital data of 8 bit to panel control circuit through CN104. U105 #

86 generates a PWM waveform by regulating the duty to control the brightness of the backlights.

U103 is EEPROM used for saving EDID data, which is connected by SCL and SDA pins with # 31 and # 30 of TSUM56AL-1.

U106 is a flash memory, U106 # 2, # 1, # 6, # 5 are the communications with U105 # 37-# 40.

U108 is EEPROM used for saving user’s OSD setting. U108 is connected by SCL and SDA pin with # 44 and

# 43 of TSUM16AL.

4.2.3 VGA Input


2 6


Signal R, G, B input through CN103 #1, #2, #3, and C112, C113 and C114 filtering the high frequency noise. Signal HSYNC and VSYNC input through CN103 #13 and #14, and C125, R137, C126, R136 filtering.

Then the analog signal enters U105, and then U104 deals with it internally. In addition, TVS101, TVS102,

TVS103, TVS104 (the four are BAV99), ZD101, ZD105, ZD106, ZD107, ZD108(they are constant voltage diode of 5V6) are ESD protector. Signal DDC-SCL inputs via CN103 #15, and then passes through ZD101 for

ESD protection, goes into EDID EEPROM IC U103. Signal DDC-SDA inputs via CN103 #12, and then passes through ZD107 for ESD protection, goes into EDID EEPROM IC U103. CN103 #5 is defined as cable detect pin, this detector realizes via R124 and U105 # 35,The PC-5V of U103 is supplied by PC via CN103 #9 with

D103 for ESD protection, or supplied by Monitor self via D103.U103 is an EEPROM IC, which is a kind of memory and used for saving EDID data.

4.2.4 Button Control

Button “Key-Power” is defined as power on/off, which is connected to U105 # 90 through CN105 # 6.

Button “Key-2” is defined as two functions of selecting and adjustment, which is connected to U105 #94 through CN105 # 5.

Button “Key-Up” is defined as plus, which is connected to U105 # 95 through CN105 # 8.

Button “Key-Down” is defined as minus, which is connected to U105 # 99 through CN105 # 7.

Button “Key-1” is defined as two functions of menu and exit, which is connected to U105 # 89 through

CN105 # 4.

LED indicator on the front bezel is defined as follows: a. When press button “Key-Power”, U105 # 91 is pulled down and U105 # 92 is pulled high, so Q102 is conducted and the LED indicator is green. b. When in power-saving mode, U105 # 91 is pulled high and U105 # 92 is pulled down, so Q105 is conducted and the LED indicator is orange.

4.4 FACTORY PRESET TIMING TABLE

TIMING

640*350@70Hz

F

F

H

V

(KHz)

(Hz)

Sync

Polarity

Total

(Dot/Line)

Active

(Dot/Line)

Sync

Width

(Dot/Line)

Back Porch

(Dot/Line)

Pixel

Freq.(MHz)

31.469 +

70.086

800 640 96 48

25.175

350 2 60

IBM

640*400@70Hz

IBM

720*400@70Hz

640*480@50Hz

VESA

640*480@60Hz

640*480@67Hz

VESA

640*480@72Hz

VESA

640*480@75Hz

31.469

70.086 + 449 400 2 35

31.469

70.087 + 449 400 2 35

24.700

50.000

31.469

59.940

35.000

66.667

37.861

72.809

37.500

75.000


2 7


VESA

640*480@85Hz

VESA

800*600@56Hz

VESA

800*600@60Hz

VESA

800*600@72Hz

VESA

800*600@75Hz

VESA

800*600@85Hz

MAC

832*624@75Hz

43.269

85.008

35.156 + 1024 800 72 128

56.250 + 625 600 2 22

37.879 + 1056 800 128 88

60.317 + 628 600 4 23

48.077 + 1040 800 120 64

72.188 + 666 600 6 23

46.875 + 1056 800 80 160

75.000 + 625 600 3 21

53.674 + 1048 800 64 152

85.061 + 631 600 3 27

49.725 − 1152

74.550

36.000

40.000

50.000

49.500

56.250

VESA

1024*768@60Hz

48.363

60.004

−

−

1344 1024 136 160

806 768 6 29

VESA

1024*768@70Hz

VESA

1024*768@75Hz

56.476

70.069

− 1328

60.023 + 1312 1024 96 176

75.029 + 800 768 3 28

VESA

1024*768@85Hz

1024*768@72Hz

VESA

1152*864@75Hz

MAC

1152*870@75Hz

VESA

1280*960@60Hz

79.976 +

75.025 +

1688

1066

208

84.997 + 808 768 3 36

57.700 − 1360

75.000 + 900 864 3 32

1280*960@75Hz

75.000 + 1000

VESA 63.981 + 1688

1280*1024@60Hz 60.020 + 1066

VESA

1280*1024@75Hz

68.677 +

72.125

67.500 +

68.681

75.062

− 1456

60.000 +

1376

1600

1800

60.000 + 1000

75.000 + 1800

1024 96

1152 128 256

1280 112 312

960

1280 112 312

960 3 36

1280 112 248

1024

1280 144 248

1024

3

3

3

36

38

38

75.025 + 1066 1024 3 38

65.000

78.750

94.500

108.000

108.000

130.000

108.000

135.000


2 8


4.5.1 Hardware Power ON

When power cord is plugged into AC socket, SMPS starts work and provides U105 with VCC5V. When

VCC5V inputs, U105 resets circuit active, sets U105 all registers to preset modes, and then monitor goes into stand-by mode. That means hardware power on has been completed.

4.5.2 Software Power ON/OFF

When press power key, U105 # 90 recieves low pulse,and then U105 will do the power on/off.

- If Power ON, U105 # 91(LED_Green) will send out Low potential, and then LED green on.

- If Power OFF, U105 # 91(LED_Green) will send out High potential, and then LED Off.

The Panel_Vcc, Backlight_En, CLK/DATA output to panel will follow the following sequency.

T1 (ms) T2 (ms) T3 (ms) T4 (ms) T5 (ms) T6 (ms) T7 (ms)

0.1~10 0.5~10 >200 >100 0~50 0.1~25 >1000

4.6 AC Outlet Pin Assignment

1

P801

2

Pin Symbol

1 L

2 N

3 E

Description

Live

Neutral

GND

4.7 Inner Connector Pin Assignment

4.7.1 CN501, CN502, CN503, CN504 (Connect to Panel Backlight, SM02B-BHSS-1-TB or equivalent)

Pin Symbol Description

1

2

H.V.

L.V.

High voltage for lamp

Low voltage for lamp


2 9


4.7.2 CN101 (Power BD to Interface BD)

Pin No. Symbol Description

7

8

4

5

ON/OFF

BRIGHTNESS

CCFL on/off control

Panel luminance control (CCFL brightness)

VOL

MUTE

Volume control input

Mute control input

4.7.3 CN105 (Interface BD to Keypad)

Pin

No.

Symbol

1 LED_ GREEN

2 LED_ ORANGE

3 GND

4 KEY_POWER

Description

Orange LED lighting control

Green LED lighting control

Ground

DC power on/off control,

6 KEY_DOWN&2

7 GND

8 KEY_1 OSD menu and exit

4.7.4 CN104 (Connect I/F BD to panel, FI-X30S-H or Equivalent)

Pin No. Symbol Function

1 RXO0-

2 RXO0+

3 RXO1-

4 RXO1+

5 RXO2-

6 RXO2+

7 GND

8 RXOC-

9 RXOC+

10 RXO3- minus signal of odd channel 0(LVDS) plus signal of odd channel 0(LVDS) minus signal of odd channel 1(LVDS) plus signal of odd channel 1(LVDS) minus signal of odd channel 2(LVDS) plus signal of odd channel 2(LVDS)

Ground minus signal of odd clock channel (LVDS) plus signal of odd clock channel (LVDS) minus signal of odd channel 3(LVDS)


30


11 RXO3+

12 RXE0-

13 RXE0+

14 GND

15 RXE1-

16 RXE1+

17 GND

18 RXE2-

19 RXE2+

20 RXEC-

21 RXEC+

22 RXE3-

23 RXE3+

24 GND plus signal of odd channel 3(LVDS) minus signal of even channel 0(LVDS) plus signal of even channel 0(LVDS)

Ground minus signal of even channel 1(LVDS) plus signal of even channel 1(LVDS)

Ground minus signal of even channel 2(LVDS) plus signal of even channel 2(LVDS) minus signal of even clock channel (LVDS) plus signal of even clock channel (LVDS) minus signal of even channel 3(LVDS) plus signal of even channel 3(LVDS)

Ground

25 GND Ground

26 GND Ground or Open

27 GND Ground

28 VCC

29 VCC

30 VCC

Power supply (5.0 V)



4.7.5 CN103 (D-SUB Connector)

Pin Symbol Pin

1

2

Red video input

Green video input

3 Blue video input

4 GND

5 Cable Detect

6

7

8

10

Symbol

Red GND

Green GND

Blue GND

GND

Pin Symbol

11 GND

12 Serial data (SDA)

13 H / H+V SYNC

14 VSYNC

15 Data clock line (SCL)


31


4.8 Key Parts Pin Assignment

4.8.1 IC802 (NCP1337, Power Control IC)

Pin Symbol I/O Description

1 BO

2 FB

I Brown−out and external triggering

I Sets the peak current setpoint

3 CS I Current sense input and overpower compensation adjustment

4 GND IC

5 DRV O Output

6 Vcc I IC

7 NC

8 HV I High−voltage pin

4.8.2 IC501 (OZ9938GN, CCFL inverter controller IC)

Pin No. Symbol I/O Description

2 VDDA I Supply voltage input

3 TIMER I Timing capacitor to set striking time and shut down delay time

Analog dimming or Internal LPWM dimming or external PWM pulse input

4 DIM I for dimming function

5

6

ISEN

VSEN

I

I

Current sense feedback

Voltage sense feedback

7 OVPT I Over-voltage/over-current protection threshold setting pin

8 NC

9 NC

10 ENC I ON/OFF control of IC

Timing capacitor to set internal PWM dimming frequency and also a pin for

11 LCT I analog dimming selection

12 SSTCMP I Capacitor for soft start time and loop compensation

13

14

CT

GNDA

I Timing resistor and capacitor for operation and striking frequency

Ground for analog signals

16 PGND Ground for power paths

4.8.3 U105(TSUM56AL-1)

Pin Symbol

1 NC

2 GND

3 NC

4 NC

5 GND

6 NC

7 NC

I/O

Ground

Ground


32

Description


8 AVDD_DC

9 NC

10 NC

11 GND

12 NC

13 NC

14 AVDD_DC

15 REXT

16 AVDD_PLL

17 BIN0M

18 BIN0P

19 GIN0M

20 GIN0P

21 SOGIN0

22 RIN0M

23 RIN0P

Ground

I

I

I

I

External resistor 390 ohm to AVDD_ADC

Reference ground for analog blue input

Analog blue input

Reference ground for analog green input

Analog green input

I

I

Reference ground for analog red input

Analog red input

24 AVDD_ADC

25 REFM

26 REFP

27 HSYNC0

32 VDDP

33 GND

34 VDDC

I

Internal ADC bottom de-coupling pin

Internal ADC top de-coupling pin

Analog HSYNC input

28 VSYNC0

29 GND

I Analog VSYNC input

Ground

30 DDCA_SDA/RS232_TX I/O

DDC Data for Analog Interface; 4mA driving strength/UART

Transmitter/GPIO

31 DDCA_SCL/RS232_RX I/O DDC Clock for Analog Interface/UART Receiver/GPIO

I Digital Output Power

Ground

35 GPIO_P15/PWM0

General Purpose Input/Output; 4mA driving strength/Pulse Width

I/O

Modulation Output; 4mA driving strength

36 NC

37

38

39

SDO

SCZ

SCK

I SPI Flash Serial Data Output

O SPI Flash Chip Select

O SPI Flash Serial Clock

O SPI Flash Serial Data Input 40 SDI

41 NC

42 NC

43 GPIO_P11/I2C_MDA I/O

General Purpose Input/Output; 4mA driving strength/I2C Master

Data

44 GPIO_P10/I2C_MCL I/O

General Purpose Input/Output; 4mA driving strength/I2C Master

Clock

45 NC

Not Connected

46 NC

47 NC

48 GPIO_P27/PWM1 I/O

General Purpose Input/Output; 4mA driving strength/Pulse Width

Modulation Output; 4mA driving strength


Ground

49 VDDP

50 GND

51 VDDC

52 MODE[0]

53 MODE[1]

54 LVA3P

55 LVA3M

56

59

VDDP

57 GND

58 LVACKP

LVACKM

O

O

A-Link Positive LVDS Differential Data Output

A-Link Negative LVDS Differential Data Output


Ground

O A-Link Positive LVDS Differential Clock Output

O A-Link Negative LVDS Differential Clock Output


33


60 LVA2P

61 LVA2M

62 LVA1P

63 LVA1M

64 LVA0P

65 LVA0M

66 VDDC

67 LVB3P

68 LVB3M

69 LVBCKP

70 LVBCKM

71 LVB2P

72 LVB2M

73 LVB1P

74 LVB1M

75 VDDP

76 GND

77 LVB0P

78 LVB0M

79 GND

80 BYPASS

81 NC

82 VDDC

83 GND

84 RST

85 GPIO_P12

86 PWM1/GPIO_P25

87 RSTN

88 GPIO_P00/SAR1

89 GPIO_P01/SAR2

90 GPIO_P02/SAR3

91 GPIO_P06

92 GPIO_P07

93 PWM0/GPIO_P26

94 GPIO_P13

95 GPIO_P14

96 XIN

97 XOUT

98 AVDD_MPLL

99 GPIO_P16/PWM2

100 NC

O A-Link Positive LVDS Differential Data Output

O A-Link Negative LVDS Differential Data Output

O A-Link Positive LVDS Differential Data Output

O A-Link Negative LVDS Differential Data Output

O

O

O B-Link Positive LVDS Differential Data Output

O B-Link Negative LVDS Differential Data Output

O B-Link Positive LVDS Differential Clock Output

O B-Link Negative LVDS Differential Clock Output






Ground



Ground

Ground

I

I/O

I/O

A-Link Positive LVDS Differential Data Output

A-Link Negative LVDS Differential Data Output

For External Bypass Capacitor

Chip Reset; High Reset

General Purpose Input/Output; 4mA driving strength

Pulse Width Modulation Output; 4mA driving strength/General

Purpose Input/Output; 4mA driving strength

I Chip Reset; Low Reset

I/O

General Purpose Input/Output; 4mA driving strength/SAR ADC

Input

I/O


Input

I/O


Input

I/O

General Purpose Input/Output; 6/12mA programmable driving strength

I/O

General Purpose Input/Output; 6/12mA programmable driving strength

I/O

Pulse Width Modulation Output; 4mA driving strength/General

Purpose Input/Output; 4mA driving strength

I/O General Purpose Input/Output; 4mA driving strength

I/O General Purpose Input/Output; 4mA driving strength

I/O

General Purpose Input/Output; 4mA driving strength/

Pulse Width Modulation Output; 4mA driving strength


34


5. Adjustment Procedure

5.1 Key Function Description

CONTROL KEY

[AUTO] [2]

KEYS FUNCTION

By pressing [AUTO] key, “Auto Image Adjust” is performed

[MENU] [1] By pressing [MENU] key, Main menu display

[▼] [▲]

[POWER]

A. When “MENU OSD” display, press these keys to change the contents of an adjustment item, or change an adjustment value

B. When “MENU OSD” is un-display, press these keys to change brightness and contrast

Power on or power off the monitor

5.2 Hot Key Operation

Item

[▲] + [▼]

Hot Key Function

Function Detail

Recall Contrast or Brightness while in the Contrast or Brightness adjustment;

Recall both Contrast and Brightness when the OSD is not open

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

[1] + [▼] + [▲]

(keep pushing 5 sec)

[1] + [▼]

[1] + [▲]

[▼] + [▲]+ [ ]

White Balance (Not shown on user’s guide)

Power Lock

OSD Lock

Enter Factory Mode

Remark: All the function above are only available while OSD off

5.3.1 OSD table

Layer 1

Auto Image Adjust

Contrast/Brightness

Audio

Color Adjust


Contrast (+ / -)

Layer 2

Brightness (+ / -)

Volume

Mute sRGB

9300K

6500K

5400K

User Color

Volume (+ / -)

On/Off

Red (+ / -)

Green (+ / -)

Blue (+ / -)

Layer 3


3 5

Information

Manual Image Adjust

Setup Menu

H/V Position

H Size

Fine Tune

Sharpness

Language Select

Resolution Notice

OSD Position

H Position (+ / -)

V Position (+ / -)

+ / -

+ / -

+ / -

English

French

German

Italian

Spanish

Finnish

Japanese

Simplified Chinese

Traditional Chinese

On/Off

H Position (+ / -)

V Position (+ / -)

On/Off

OSD Time Out

OSD Background

Memory Recall

5.3.2 OSD lock Menu function

OSD Lock Menu Function Check

Item Method

Activate OSD lock [1] + [▲] 10S

Phenomenon

Press any of buttons"1", "▼",

"▲", "2" will appear "OSD Locked"

3s

Deactivate OSD lock: [1] + [▲] 10S(again)

NOTICE:

When the OSD is locked will lock all functions.

Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate “OSD

Locked”

OSD Lock should not lock Power Button and Power Lock function

5.3.3 Power lock Menu function

Power Lock Menu Function Check

Item Method Phenomenon


3 6


Activate Power Lock [1] + [▼] 10S

Can not turn off the LCD;

Press the power button will appear "Power Button Locked"

OSD 3s;

LCD would automatically turn back "On" when power is restored after a power failure

Deactivate Power Lock [1] + [▼] 10S(again)

NOTICE:

Status bar indicating Power Button lock or unlock is in progress and when complete it will indicate

“Power Button Locked”

Power should only be lockable in the “On State”

5.3.4 Resolution notice function

Resolution Notice Menu

Item Method

Resolution Notice OSD should show on screen after changing to

Activate Resolution non-native mode for 30 sec,

Notice Menu

And it should disappear after 10s or by pushing button [1] or [2]

Deactivate

Resolution Notice Menu

Push button [2] under Resolution

Notice OSD, select Disable

Phenomenon

------

-------

5.3.5 Factory Mode Introduction

When input the signal, press “power key” to turn off the monitor. Press” [▼] +[▲] +[ ] “at the same time so as to enter factory mode. After power on, press ‘’Menu[1]’’ key, you can see the Factory menu.

INL-V0

V3 060922

Auto Color

: Currently using panel model name

: Currently using firmware version information.

: Automatically calibrate chip ADC parameter by using chip internal DAC

Color Temperature : The R, G, B of 9300K and 6500K and 5400K and User Mode

Colors are all generated from scaling back end.

5.4 Burn-in pattern

If it is a new monitor, and in factory mode, if no VGA signal input, Burn-in pattern will self generate automatically. Burn in patterns are: full Red, Green, Blue, White and Black. You can not escape from

Burn-in pattern until plug in VGA Cable or press the power key to turn the monitor off and then turn it on.

5.5 Auto Color (Automatically calibrate chip ADC parameter by using chip


3 7


internal DAC)

If it is a new-built set and it is first time to do the “auto color”, please confirm the following steps:

-Connect the VGA cable with the standard video pattern generator and display 5-mosic pattern on the monitor.

- Press “Power” to power off the monitor.

- Press” [▼] +[▲] +[ ] “simultaneously to enter factory mode.

- Press ‘’Menu[1]’’, then press ‘’Auto[2]’’ to execute Auto color item.

- After the “Auto Color” process finished, please press “Power” to restart monitor.

5.6 EDID (Rewrite EDID data to EEPROM)

If we need to rewrite the EEPROM data, please confirm the following steps.

1. Plug in VGA Cable; we can rewrite the EDID data to EEPROM by using “EDID Rewrite” program.

2. If the “EDID Rewrite” process finished, please pull out VGA cable and press ‘’2’’+’’▲’’ at the same time.

3. Pull out AC power cable or press power key to restart.

5.7 Upload firmware to MCU via VGA Cable

5.7.1 Connect ISP board between monitor and PC as below configure

ISP Board

Service cable

LCD Monitor

D-Sub

Insert to Print

Port 25pin

5.7.2 Using mStar ISP Tool Update FW:

(1). Select “Read”, Choose the corresponding firmware, load to MCU.


3 8


(2). Select “Connect”, auto connect for ISP.

(3). Select “Run”, start ISP.

(4). When the picture show “Verify OK”, ISP finished.


3 9


5.7.3 After repair, to ensure the quality you should do the following test and adjustment

Item Content Equipment

Test OSD function

1.Signal is set as 1280x1024@60Hz

2. LCM button are from left to right, checking whether each single

Chroma

Signal Generator

Contrast Check function key and compound function key can be worked.

1. Set input mode to 1280x1024@60Hz

2. Set Pattern to 32 gray shades

3. Set contrast to the max. The brightest 6~8 shades brightness cannot

Chroma

Signal Generator be distinguished.

Color Temperature

1. Do “Auto color” at 640 x 480@60Hz, 5-Mosic pattern

2. Measure color temperature, check it complies with the following temperature:

5400K x=0.335 +/- 0.02, y=0.350 +/- 0.02

6500K x=0.313 +/- 0.02, y=0.329 +/- 0.02

9300K x=0.283 +/- 0.02, y=0.298 +/- 0.02

Chroma Signal

Generator and color analyzer

Modes switching check

Y measurement at default setting

Panel Flicker check

1. Use Chroma Pattern Generator to make sequence.

VESA (640x480 800x600 1024x768 1280x1024), MAC 832x624

DOS (640x350 720x400), the detail supported modes and power saving signal.

2. Confirm the above timing modes must be full screen and the picture must be normal.

3. LED is Orange at power saving mode.

1. Set brightness to default value 100 and contrast to default value

70 at 6500K

2. At full white patter, Measure Y, which should be ≥ 250cd/m²

1. Mode: 1280x1024@60Hz

2. Set Brightness& contrast to default value

3. Do “Auto Image Adjust”

4. Shut down PC to check whether there’s glitter on the center of the picture.

Chroma Signal

Generator

Chroma Signal

Generator and Color

Analyzer

Equipment::

Chroma Signal

Generator & PC

Power saving

1440x900@60Hz

2. Pattern: full white

Default

5. Check power consumption at each modes

State Power Consumption

Normal ≤ 42W Blue

LED color

Stand By

Power Key Off

< 2W

＜ 1Ｗ

Orange

No

Chroma signal generator and Power meter

AC input: 230V/50Hz


40


Packing For Shipping

1. Packing Procedure

1.1 Paste protection film to protect the monitor. (Figure 1)

1.2 Put the monitor in the PE bag and seal the bag with tape. (Figure 2)

Figure 1

1.3 Put the cushions on the monitor.

Figure 2

1.4 Place the monitor into the carton and then put all the accessories into the carton. At last, close the carton and seal it with tape. (Figure 3)

P ower adapter iP od adapter

AUDIO CABLE

P OWER CABLE

2 in 1 audio cable

USB cable

DVI cable

D-sub cable

MONITOR

HEAD

Figure 3


41


Disassembly Procedure

Hinge Cover iBox


42

Front Cover


BACK COVER


43

PANEL


CHASSIS

I/F BOARD P/I BOARD

KEYPAD BOARD

SPEAKER

LVDS


44

KEY-POWER CABLE



6.1. Common Acknowledge

If you change the interface board, be sure that the U103, U105, U106 and U108 these three components also changed to the new I/F board because there was program inside. If not, please re-write EDID and upload firmware into U106 via VGA Cable.

If you adjust clock and phase, please do it at the condition of Windows shut down pattern.

If you confirm the R.G.B. color is normal or not, please do it under 16-grey scalar pattern.

This LCM is analog interface. So if the entire screen is an abnormal color that means the problem happen in the analog circuit part, if only some scale appears abnormal color that stand the problem happen in the digital circuit part.

If you check the H/V position, please use the crosshatch pattern.

This LCM support more than 30 timing modes, if the input timing mode is out of specification, the picture may appears abnormally.

If brightness uneven, repairs Inverter circuit or change a new panel.

If you find the vertical line or horizontal line lost on the screen, please change panel.

If you find the speaker don’t working, please don’t plug in audio cable, unless change new speaker.


45


6.2. No Power & Power LED Off

No power

Check primary rectifier voltage

Check pin6 of IC802 voltage about 12V

Check circuit if short

Check F801, P801,

RT,801,D801

CheckC810,D803,C807,

Check IC802,

C804, T801,

Check pin2 of IC802 voltage about 2V

Check pin1 of IC802 voltage is below 1V

END

Check primary OVP, OLP and secondary feedback,

Check R811, R810,

R809, R808,R814


4 6


6.3. DC output voltage is unstable

Unstable power

Check sampling

Circuit

Check the R pin voltage of IC803 about 2.5V

Check pin2 of

IC802 voltage is 3V

Check R822, R823,

R824

Check the C pin voltage of IC803 if

3V

Change R822, R823,

R824

Change

IC803

Check R819, R820

Check R818, D804, C807 if short

Change R818,

D804, C807

Check pin1 of

IC802 voltage below 1V

Change R808, R 809,

R810, R 811, R815,

END


4 7


6.4. Output power is unstable

Unstable power

Check sampling

Circuit

Check the R pin voltage of IC803 about 2.5V

Check pin1 of

IC802 voltage is 5.8V

Check R810,

R811, R818

Check the C pin voltage of IC803 if 3V

Change R810, R811,

R818

Change

IC803

Check R809, R808, R814,

D809

Check D806, C815 if short

Change

D806, C815

Check pin3 of

IC802 voltage about 1V

Change R801, R805,

R822, R823, R817

END


4 8


6.5. Backlight can’t be turned on

Black screen

Check power supply:pin 1,2 of

CN101

YES

NG

NG

Check power supply for U105

YES

Check reset (pin84) of

U105

YES

Check crystal (pin 96,97) waveform of U105

YES

Check CCFL-

Enable(pin 85) of U105

NG

U105 FAIL

YES

NG

NG

NG

Check pin4 of

CN101

YES

Power fail

Check FB102,FB103,

FB105,FB106

Check C144,R172

Check

X101,C153,C154

Inverter Fail

Check R167,Q106,

R108,R110


4 9


6.6. Black Screen and backlight turn on

Black Screen

Check Power Supply:

Pin 1, 2 of CN101

OK

Check Power:

Pin 2 of U101 and Pin 2 of U102

OK

Check Reset Waveform

(Pin 84 of U105)

OK

Check Crystal Waveform

(Pin 96,97 of U105)

OK

U105

(TSUM16AL) Fail

NG

NG

NG

NG

Power Fail

U101, U102 Fail

Check C144 and

R172

Check X101,

C153, C154


50


6.7. White Screen

White screen

OK

LVDS Cable

Reinsert

NG

Change

LVDSCable

NG

Check VLCD

is 5V

NG

Check Panel-Enable of

U105(pin48)

OK

Check

Q101,Q103,Q110,

C108,

C109

OK

NG

OK

Check LVDS signal

NG

U105 Fail

OK

Workmanship

LVDS cable NG

Panel Fail

END


51


6.8. Bad Screen

Bad Screen

LVDS Cable

Reinsert

NG

Change LVDS

Cable

NG

Check Crystal: pin96,97 of U105

Check the pins of

U105

OK

OK

OK

NG

Workmanship

LVDS Cable NG

CheckX101, C153,

C154


52



30

31

32

33

26

27

28

29

34

35

36

37

22

23

24

25

18

19

20

21

10

11

12

13

7

8

9

14

15

16

17

Item

1

2

3

4

5

6

RECOMMENDED SPARE PARTS LIST (VX1945wm-3)

ViewSonic Model Number: VS11444

Serial No. Prefix: QCY

Accessories :

[Adapter, Remote

Control]

Description

Power Cord 10A/250V 6FT (Australia)

Power Cord 16A/250V 6FT (Europe)

Power Cord 5A/250V (Singapore)

Power Cord, 10A/250V BLK 6FT (China)

Power Cord 10A/125V BLK 6FT UL/CSA USA RoHS

Power Cord 7A/125V 6FT (Taiwan)

Power Cord 16A/250V 6FT (Korea)

Adapter, Kit Power for Base (CHINA)

Adapter, Kit Power for Base (US & TW)

Adapter, Kit Power for Base (EU)

Adapter, Kit ipod

Kit Accessory

Interface Board PC Board

Assembly:

PCBA]

[All Key Board

Sub Board - P/I Board

Front Panel

Back Cover Cabinets:

[Front Panel, Back

Cover, Base]

Cables: [All Cables]

Base Assembly + Stand

Cable, D-Sub , SZ40 RoHS

Audio Cable (1P 6FT)

Video Cable - DVI-D 18+1P MALE 6FT

Electronic

Components:

[CRT-

EEPROM, Fly Back

Hardware:

Packing Material:

[Box, Foam]

Flat Cable - LVDS FFC 30P 158mm, ROHS

Wire - 8P 200mm UL1571#28 ROHS

Audio Cable - 1P TO 2P 6FT,RoHS

USB Cable - 5FT BLACK, RoHS

LCD Panel 19"

LCD Panel 19" Substitute 1

LCD Panel 19" Substitute 2

Hinge - Cover-Left

Hinge - Cover Right

PE Bag - L620xW510xT0.6mm

Bag, Plastic W(575+300)xL1125xT0.05mm

Craft Box

Foam - EPS (Left)

Foam - EPS (Right)

Generic Foam Set

Generic Box

ECR/ECN

Updated VS Part # on 11/27/06

ViewSonic P/N Ref. P/N

A-00003671 453070800420R

A-00003674 453070800210R

A-00003675 453070800230R

A-00005255

A-00006679

453070800170R

453070800250R

A-00006733 453070800480R

A-00006734 453070800500R

A-00008068

A-00008069

704300000200R

704300000250R

A-00008070

A-00008071

A-00008072

B-00008169

B-00008170

B-00008171

C-00008190

C-00008191

C-00008193

704300000210R

704300000300R

703000004400R

790741300600R

790741500000R

790741400600R

714030007910R

714050007910R

C-00006106 714010008500R

CB-00005254 453010100100R

CB-00008002 453030300120R

CB-00008070 453030300180R

CB-00008071 430303000690R

CB-00008072 430300800800R

CB-00008074 453030300310R

CB-00008075 453030300320R

E-00008016

E-00008171

631102090600R

631102090610R

E-00008172 631102090720R

HW-00008055 501020210460R

HW-00008056 501020210560R

P-00008170 506120301700R

P-00008172

P-00008184

506120006300R

506020012510R

P-00008185

P-00008186

P-00001347

P-00002515

506040010120R

506040010130R

30833

20653

Location

Rev: 1b

Universal number#

Remark 1: Above listed items are examples, supplier can expand the rows to add more necessary items.

Remark 2: All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by ViewSonic Corporation. This is to eliminate repeated cross checks of each item between this version and prior versions.


53


BOM LIST (VX1945wm-3)


Rev: 1b


59

60

61

62

55

56

57

58

51

52

53

54

47

48

49

50

67

68

69

63

64

65

66

70

71

72

73

36

37

38

39

32

33

34

35

28

29

30

31

24

25

26

27

44

45

46

40

41

42

43

20

21

22

23

16

17

18

19

12

13

14

15

8

9

10

11

6

7

4

5

Item ViewSonic P/N

1 N/A

2

3

P-00008170

N/A

N/A

P-00008184

P-00008185

P-00008186

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

CB-00008002

CB-00008070

CB-00008009

A-00006679

CB-00008074

CB-00008075

A-00008069

A-00008071

N/A

N/A

N/A

N/A

N/A

N/A

N/A

HW-00008055

HW-00008056

E-00008137

C-00006106

C-00008190

C-00008191

N/A

C-00008190

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

C-00008191

N/A

N/A

N/A

HW-00005270

N/A

HW-00005269

N/A

E-00008016

E-00008171

E-00008172

B-00008169

B-00008170

B-00008171

CB-00008071

CB-00008072

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Ref. P/N Description

506380002100R TAPE,WRAPPING TYPE(VIEWSONIC),50mmx75M,L

506120301700R BAG,EPE+PE,L620xW510xT0.6mm, LE1925

506431003100R FILM,PROTECTION,UNPRINTED,430x280x0.1mm,

506431000300R FILM,PE 500mmx900M ROHS

506020012510R CARTON,VIEWSONIC(VX1945), LP1911

506040010120R CUSHION,EPS-L,(VX1945), LP1911

506040010130R CUSHION,EPS-R,(VX1945),LP1911

506150007700R PALLET,L1110xW1080xH120mm,LP1911

506039004500R CORNER PAPER,2060x50x50xT5mm,LE1708 ROHS

506039005000R CORNER PAPER,870x50x50xT5mm,ROHS LE1918

506038004700R CARDBOARD,L1110xW1080xT4mm ROHS LP1911

506391000040R LABEL,POP,FOR BELZE, LP1911

506440002400R LABEL,BLANK,50x25mm,LE1709(S/N)

506250011600R LABEL,AGENCY,ViewSonic(VX1945),LP1911

506390210400R LABEL,CARTON(5ms),L89xW58 LE1941

506440002300R LABEL,BLANK,76.2x76.2mm,LE1709(UPC)

506440002600R LABEL,BLANK,210x65mm,LE1709(PALLET)

506390000600R LABEL,HI-POT PASS, LE1709

453030300120R CABLE,AUDIO 1P 6FT BLACK/GREEN CP03B06P0

453030300180R CABLE,DVI-D 18+1P MALE 6FT PC99(BLACK)SA

453010100150R CABLE,D-SUB 15P MALE 6FT BLACK,SZ4120955

453070800250R PWR CORD 10A/125V BLK 6FT UL/CSA,SVT 18x

453030300310R CABLE,AUDIO 1P TO 2P 6FT,RoHS

453030300320R CABLE,USB 5FT BLACK, RoHS

704300000250R KIT,POWER ADAPTER FOR BASE LP1911(US&TW)

704300000300R KIT,IPOD ADAPTER FOR BASE LP1911

703000004410R KIT, ACCESSORY(US),LP1911(VX1945)

714078660010R ASSY,FINAL(B,V0/G1,2,3),W/SPK,LP1911-612

714078660010R ASSY,FINAL(B,V0/G1,2,3),W/SPK,LP1911-612

509112308100R SCREW,P,CROSS,T.T-3*8,Zn ROHS REV:A

509116608510R SCREW,P,CROSS,M4*8,BLACK,NL(NYLOK)

509112310100R SCREW,P,CROSS,T.T-3*10,Zn

503040000310R RUBBER,COVER(B), LE1534

501020210460R COVER,HINGE-L,VX1945, LP1911

501020210560R COVER,HINGE-R,VX1945, LP1911

618100200120R SPEAKER 2.0W 8Ω 370mm, R/G/B W/CASE

714010008500R ASSY,STAND VX1945 LP1911

714030007910R ASSY,BEZEL, LP1909

714050007910R ASSY,BACK COVER, LP1909

714078661000R ASSY,PANEL(V0/G1&2&3),W/SPK,LP1909-6I2

714030007910R ASSY,BEZEL, LP1909

501010208310R BEZEL, LP1909

501030205010R BUTTON,FUNCTION KEY, LP1909

501120104910R LENS, LP1909

506102000400R LOGO PLATE,VIEWSONIC, LE1709(THREE BIRDS

506102000300R LOGO PLATE,VIEWSONIC, LE1709

506431003400R FILM,PROTECTION,FOR BEZEL-TOP LP1909

506431003410R FILM,PROTECTION,FOR BEZEL-MIDDLE LP1909

506431003420R FILM,PROTECTION,FOR BEZEL-BOTTOM LP1909

506390500100R LABEL,ENERGY STAR, LE1709

714050007910R ASSY,BACK COVER, LP1909

501020210210R COVER,BACK, LP1909

506430300003R FILM,PET,L115xW30xT0.05mm, LE1741

714078661000R ASSY,PANEL(V0/G1&2&3),W/SPK,LP1909-6I2

509000000700R BOLT,#4-40x11.8,Ni FOR D-SUB/DVI CONN.RO

509146304200R SCREW,P,CROSS,W/WAS,M3*4,Zn-Cc,ROHS

509146305300R SCREW,PW,CROSS,W/WAS,M3*5,NI

509146306102R SCREW,P,CROSS W/W-SPR,M3*6,Zn,ROHS

631102090600R LCD PANEL 19" MT190AW01-V0,AM19000040

631102090610R LCD PANEL 19" Substitute 1

631102090720R LCD PANEL 19" Substitute 2

790741300600R PCBA,I/F BOARD, LP1909-612

790741500000R PCBA,KEYPAD BOARD, LP1909

790741400600R PCBA,P/I BOARD, LP1909-612

430303000690R HRN LVDS FFC 30P 158mm, ROHS

430300800800R HRN ASS'Y 8P 200mm UL1571#28 ROHS

701000002300R ASSY,CHASSIS, LP1909

701000002300R ASSY,CHASSIS, LP1909

502090304510R CHASSIS, LP1909

502080000110R SUPPORT,HINGE, LP1909

509116606510R SCREW,P,CROSS,M4*6,BLACK,NL ROHS (NYLOK)

505040503100R INSULATOR,PP,22x20x12X0.3mm,GLUE(3M), LE

505040503400R INSULATOR,PP,10x15x10X0.3mm,GLUE(3M), LE

Location Universal number#

1

1

1

1

4

1

4

4

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

3

1

2

1

1

1

1

1

1

1

4

2

4

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

0.031

0.125

0.125

0.063

Q'ty

0.01

1

1

0.002

1

1

1

1

1

1

1

1

0.063

1

1


54


8. Exploded Diagram and Exploded Parts List


55

Confidential - Do Not Copy

VX1945wm-3

14

15

16

17

10

11

12

13

A

B

C

F

G

D

E

H

Item

7

8

5

6

9

3

4

1

2

EXPLODED PARTS LIST (VX1945wm-3)


Rev: 1b


ViewSonic P/N

C-00008190

E-00008016

B-00008171

B-00008169

CB-00008071

N/A

N/A

N/A

E-00008137

C-00008191

N/A

HW-00008055

HW-00008056

B-00008170

CB-00008072

N/A

C-00006106

HW-00005269

HW-00005270

N/A

N/A

N/A

N/A

N/A

N/A

Ref. P/N

714030007910R

631102090600R

790741400600R

790741300600R

430303000690R

701000002300R

505040503100R

505040503400R

618100200120R

714050007910R

503040000310R

501020210460R

501020210560R

790741500000R

430300800800R

502080000110R

714010008500R

509146305300R

509000000700R

509146306102R

509146304200R

509116608510R

509112308100R

509112340100R

509116606510R

Description

ASSY, BEZEL,LP1909

LCD PANEL 19" MT190AW01-V0-G1,AM19000040

PCBA,P/I BOARD, LP1909-612

PCBA,I/F BOARD, LP1909-612

HRN LVDS FFC 30P 158mm, ROHS

ASSY, CHASSIS, LP1909

INSULATOR, PP, 22*20*0.3mm, GLUE(3M)

INSULATOR, PP, 10*15*10*0.3mm, GLUE(4M)

SPEAKER 2.0W 8Ω 370mm, R/G/B W/CASE

ASSY, BACK COVER, LP1909

RUBBER, COVER,(B),LE1534

COVER, HINGE-L,LP1911

COVER, HINGE-R,LP1911

PCBA,KEYPAD BOARD, LP1909

HRN ASS'Y 8P 200mm UL1571#28 ROHS

SUPPORT,HINGE,LP1909

ASSY,STAND VX1945 LP1911

SCREW,PW,CROSS,W/WAS,M3*5,NI

BOLT,#4-40*11.8,NI

SCREW,P,CROSS,W/W-SPR,,M3*6,Zn,ROHS

SCREW,P,CROSS,W/WAS,M3*4,Zn-Cc,ROHS

SCREW,P,CROSS,M4*8,BLACK,NL(NYLOK)

SCREW,P,CROSS,T3*8, Zn

SCREW,P,CROSS,T,T3*10,Zn,ROHS

SCREW,P,CROSS,M4*6,BLACK,NL ROHS

1

1

1

1

1

1

1

4

4

4

1

2

1

4

4

2

Q'ty

1

3

1

1

1

1

1

1

1


56



5 7

Confidential - Do Not Copy V X1935wm-3

PACKING PART LIST (VX1945wm-3)


Rev: 1a

10

11

12

13

7

8

9

14

15

16

17

18

Item ViewSonic P/N

1 N/A

2

3

4

5

6

N/A

N/A

P-00008186

A-00008068

A-00008071

CB-00008074

CB-00008075

CB-00008002

CB-00008070

CB-00005254

A-00005255

P-00008185

P-00008170

P-00008184

N/A

N/A

N/A

Ref. P/N

506431000300R FILM, PE500mm*900M ROHS

Location

506039004600R CORNER PAPER,2060*50*50*T5mm,LE1712

506039005000R CORNER PAPER,870*50*50*T5mm, LE1918

506040010130R CUSHION, EPS-R,VX1945,LP1911

704300000200R KIT,POWER ADAPTOR FOR BASE LP1911

704300000300R KIT,IPOD ADAPTOR FOR BASE LP1911

453030300310R CABLE,AUDIO 1P TO 2P 6FT,RoHS

453030300320R CABLE,USB 5FT BLACK, RoHS

453030300120R CABLE,AUDIO 1P 6FT BLACK/GREEN CP03B06P0

453030300180R CABLE,DVI-D 18+1P MALE 6FT PC99(BLACK)SA

453010100100R CABLE,D-SUB 15P MALE 6FT BLACK/BLUE,SZ40

453070800170R PWRCORD 10A/250V BLK 6FT CHINA.RVV 3Gx0.

506040010120R CUSHION,EPS-L,VX1945,LP1911

506120301700R EPE+PE BAG,L620*W510T0.6mm,LE1925

506020012510R CARTON,VIEWSONIC(VX1945),LP1911

506038004700R CARDBOARD,L1110*W1080*H120,LP1911

506150007700R PALLET,L1110*W1080*H120,LP1911

506380002100R TAPE,WRAPPING TYPE(VIEWSONIC),50mm*75M, LE1708

1

1

1

1

1

1

1

Q'ty

0.0018

4/32

4/32

1

1

1

1

1

2/32

1/32

0.03


58


9. Block Diagram


59



Layout guide :

1. Tie the I.C. pin 1,2,3,18,19,20 to ground with a

large copper pour (open mask layer)

P701

AUDIO IN

FB701 600Ω

+14V

4

5

2

3

1

+14V R706

47K

R705

27K R708

27K

2 MUTE 1

Line_L

Line_R

R704

10K

Q703

R702

R703

PMBT3904

1

Q701

PMBT3904

10K

10K

+14V

2 VOL_C

R713

R714

5K6

100 1 Q702

PMBT3904

C703

0.1/50V

+14V

+14V 2,3

+

C702

470u/25V

C704

0.47/16V

C706

0.47/16V

5

INL

1

8

10

9

3

INR

S_GND

MUTE

STBY

VOLUME

U701

TDA7496SA

OUTL

12

OUTR

SVR

VAROUT_R

VAROUT_L

2

4

14

7

+

GND GND

11 15

+

C705

470u/16V

C707

470u/16V

L

R

CN701

4P 2.0mm

4

3

2

1


Model

Title

Date

Audio

Rev:


60


VX1945wm-3

VCC5V

4

D101

SKS20-04AT

+

VCC5V

C103

0.1/50V

3

U101

FS8860-33PJ

VIN VOUT

2

VCC3.3

+

3

U102

FS8860-18PJ

VIN VOUT

2

C104

0.1/50V

VCC3.3

VCC1.8

VCC1.8

CN101

4500-06

7

8

5

6

3

4

1

2

VCC5V

VCC5V

ON/OFF

SBRI

VOL_C

MUTE_C

ON/OFF

R110 4K7

VCC3.3

R108

4K7

1

CCFL_ENABLE

Q106

PMBT3904

+

C106

0.1/50V

PANEL_ENABLE

R105 20K 1

+

R106

10K

2 3

Q101

AP2305GN

Q110

2N7002

1

Q103

PMBT3904

+

VLCD

C109

0.1/50V

VLCD 4

VCC3.3

LED_G//LED_O R107 390

2

3

R163

1

Q105

PMBT3906

VCC3.3

1K

R190

4K7

LED_G_C

LED_A//LED_B R101 390

2

R162

3

1

Q102

PMBT3906

1K

R191

4K7

LED_A_C

CN105

7

8

5

6

3

4

1

2

2x4P 2.0mm

From keypad

C161 C162

1000p/50V 1000p/50V

LED_A//LED_B

LED_G//LED_O

POWER

MENU_UP//Key_▲

DOWN_EXIT//Key_▼&2

KEY_1


Model

Title

Date

DC to DC

Rev:


61


VX1945wm-3

CN901

8

7

6

5

4

3

2

1

8P 1.5mm 90°

From IF BD

R901 2K2

SW901

1

2

4

3

TACT-4.3

1

SW902

1

2

4

3

TACT-4.3

2

SW903

1

2

4

3

TACT-4.3

POWER

SW904

1

2

4

3

TACT-4.3

▼

SW905

1

2

4

3

TACT-4.3

▼


62


VX1945wm-3

LED901

LED Y/B


Model

Title

Date

Keypad

Rev:

11

12

13

14

15

CN103

DZ11AA1-H5W6-4F

R

2

7

1

6

G

B

4

9

3

8

5

10

FB111

FB112

FB113

60Ω

60Ω

60Ω

DETECT

FB101

120Ω

R124

R125

R127

R129

R130

R131

R132

R113

R114

R116

R117

R119

R120

R121

1K

100

100

100

100

100

100

100

C112 0.047/25V

C113 0.047/25V

C114 0.047/25V

C115 0.047/25V

100

100

C116 0.047/25V

C117 0.047/25V

470/NC C118 0.047/25V/NC

VCC3.3

R122 4K7

100

100

100

RIN

GNDR

3

3

GIN

GNDG

BIN

GNDB

SOG

3

3

3

3

3

PC5V_VGA 3

DET_VGA 3

DDCA_SCL_I 3

DDCA_SCL

VSYNC 3

HSYNC 3

DDCA_SDA_I 3

DDCA_SDA

DVI-D_CON

RX0-

RX0+

GND

RX5-

RX5+

GND

RXC+

RXC-

RX1-

RX1+

GND

RX3-

RX3+

5V

GND

HP

RX2-

RX2+

GND

RX4-

RX4+

SCL

SDA

VS

9

10

11

12

13

14

15

16

6

7

8

3

4

1

2

5

21

22

23

24

17

18

19

20

DAT0+

DAT0-

DAT1+

DAT1-

DAT2+

DAT2-

DCLK+

DCLK-

R138

R139

R140

R141

R142

R143

R144

R145

VCC3.3

10

10

10

10

10

10

10

10

TVS105

BAV99

3

TVS106

BAV99

3

TVS107

BAV99

3

TVS108

BAV99

3

TVS109

BAV99

3

TVS110

BAV99

3

TVS111

BAV99

3

TVS112

BAV99

3

1

3

2

D102 BAV70

DVI5V

VCC3.3

3

4

1

2

C128

0.1/50V

U104

A0

A1

A2

GND

VCC

WP

SCL

SDA

CAT24WC02W

8

7

6

5

R151 100

SCL_DVI

SDA_DVI

WP 3

3

4

1

2

U103

A0

A1

A2

GND

VCC

WP

SCL

SDA

CAT24WC02W

8

7

6

5

B+

B-

G+

G-

R+

R-

CLK+

CLK-

3

D103

1

2

BAV70

3

3

3

3

3

3

3

3

PC5V_VGA

VCC3.3

DDCA_SCL

DDCA_SDA

VCC3.3

VCC3.3

TVS101

BAV99

2

TVS102

BAV99

TVS103

BAV99

TVS104

BAV99

2

2

2

1

1

1

1

R

G

B

DETECT


63


VX1945wm-3

DAT2-

DAT2+

R192

R193

R152

R153

DAT1-

DAT1+

100

100

100

100

SCL_DVI

SDA_DVI

R126

R128

SCL_DVI_I

SDA_DVI_I

3

3

DVI5V

100

4K7

VCC3.3

R123

4K7

DET_DVI 3

DAT0-

DAT0+

Q104

1 R103

PMBT3904/NC

4K7/NC

HP_CTRL

DCLK+

DCLK-


Model

Title

Date

Input

Rev:

VDVI VMPLLVPLL AVDD VDDP VDDC

32 49

2

2

2

2

2

2

2

2

2

2

2

AVDD

GNDB

BIN

GNDG

GIN

SOG

GNDR

RIN

HSYNC

VSYNC

DDCA_SDA_I

DDCA_SCL_I

2 DET_VGA

2

2

2

2

2

2

2

2

2

2

VCC3.3

R+

R-

G+

G-

B+

B-

2

CLK+

CLK-

2 WP

DET_DVI

SDA_DVI_I

SCL_DVI_I

U106

8

7

3

4

VCC

HOLD#

WP#

GND

SO

CS#

SCK

SI

SST25VF010A

R169 390 1%

6

5

2

1

95

99

100

1

9

10

12

13

6

7

3

4

17

18

19

20

21

22

23

27

28

30

31

35

37

38

39

40

15

81

VCC5V

VCC5V

C144 10u/25V

84

R172

10K

BIN0N

BIN0P

GIN0N

GIN0P

SOGIN0

RIN0N

RIN0P

HSYNC0

VSYNC0

DDCA_SDA/RS232_TX

DDCA_SCL/rs232_RX

GPIO_P15/PWM0

RX2P

RX2N

RX1P

RX1N

RX0P

RX0N

RXCKP

RXCKN

GPIO_P14

GPIO_P16/PWM2

DDCD_SDA

DDCD_SCL

SDO

SCZ

SCK

SDI

REXT

VCTRL

RST

GND GND GND GND GND GND GND GND GND GND

2 5 11 29 33 50 57 76 79 83

VDDP VDDP

TSUM56AL-1

GPIO_P07

GPIO_P06

GPIO_P02/SAR3

GPIO_P01/SAR2

GPIO_P00/SAR1

RSTN

GPIO_P22

GPIO_P23

GPIO_P10/I2C_MCL

GPIO_P11/I2C_MDA

GPIO_P13

PWM0/GPIO_P26

PWM1/GPIO_P25

GPIO_P12

GPIO_P27/PWM1

PWM2/GPIO_P24

LVB0M

LVB0P

LVB1M

LVB1P

LVB2M

LVB2P

LVBCKM

LVBCKP

LVB3M

LVB3P

LVA0M

LVA0P

LVA1M

LVA1P

LVA2M

LVA2P

LVACKM

LVACKP

LVA3M

LVA3P

NC NC NC

92

91

90

89

88

87

42

41

44

43

94

93

86

85

48

47

78

77

74

73

72

71

70

69

68

67

65

64

63

62

61

60

59

58

55

54

VLCD

1

2

3

4

R170

R171

36 45 46

X101

14.31818MHz

C140

1u/16V

R157

R158

R159

R160

R161

0

0

1K

1K

1K

1K

1K

RP101

4K7x4

4K7x4

RP102

4K7x4

RP103

VCC3.3

VCC3.3

FB104

60Ω

AVDD

+

26

25

24

23

22

21

20

19

30

29

28

27

18

17

16

15

14

13

12

11

8

7

6

10

9

5

4

3

2

1

CN104

FFC-CON

R164

R165

R166

R167

R168

R181

I2C_MCL

I2C_MDA

1K

1K

1K

4.7K

100

100

VCC1.8

VCC3.3

HP_CTRL

Key_1

POWER

MENU_UP//key_▲

DOWN_EXIT//Key_▼&2

LED_G_C

LED_A_C

VCC3.3

FB105

60Ω MUTE_C

VOL_C

SBRI

CCFL_ENABLE

PANEL_ENABLE

HDCP_WP

VMPLL VPLL

+

FB103

60Ω

FB106

60Ω

VDDC

+

VDDP

+

VDVI

1 2 3 4

I2C_MCL

I2C_MDA

R178 100

R179 100

VCC3.3

8

7

6

5

U108

VCC

WP

SCL

SDA

AT24C04N

A0

A1

A2

GND

3

4

1

2

HDCP_WP

8

7

6

5

U109

VCC

WP

SCL

SDA

A0

A1

A2

GND

AT24C04N/NC

3

4

1

2


Model

Title

Date

SCALER

Rev:


64


VX1945wm-3

3 +14V

3 VCC5V

R517 10/NC

3 BRIGHTNESS

R512

110K 1%

R514

47K 1%

R511

R509

NC

200K 1%/ NC

C510

1000p/50V

R513

10K 1%

C515

2.2u/25V

R515

NC

C507

2.2u/25V

R534 0

6

7

4

5

8

1

2

3

DRV1

VDDA

TIMER

PGND

DRV2

GNDA

DIM CT

ISSEN SSTCMP

VSEN

OVPT

NC

LCT

ENA

NC

16

15

14

13

12

11

10

9

IC501

OZ9938G

D501

SN4148

3 ON/OFF

R501

100K 1%

R518

470K 1% C518

0.1/50V


R503

1K5

R502

680

1

ZD501

5V6

Q501

PMBT3904

0.1/50V

C503

65


5V

C502

2.2u/25V

C501

470u/25V

U501

1

2

AP9971GM

R504

33

R505

33

C504

1000p/50V

8

7

6

5

C505

1000p/50V

6

4

C508

3

220pF/50V/NC

1

T501

SPW-068

7

C506

10p/3KV

8

C509

3p/3KV

R507

3M3 1%

R508

51K 1%

3

4

C513

2200p/50V

R535 0

C520

0.1/50V

R532

33

R530

33

5V

R526

1M

R520

100K 1%

3

4

1

2

U502

AP9971GM

C529

1000p/50V

8

7

C526

C522

1000p/50V

6

4

6

5 1

T502

SPW-068

7

C523

10p/3KV

8

C528

3p/3KV

D505

SN4148

D511 SN4148

D512 SN4148

D513 SN4148 op1 op2 op3

C525

2200p/50V

3

R506

3M 3KV

R510

3K3 1%

D503

BAV99

C514

2

1

2700p/50V

3

D502

BAV99

1 2

R525

3M 3KV

D508 BAV99

2

3

1

R531

3K3 1% op1

R524

470

1

2

H

L

CN501

2P

R521

470

3

D504

BAV99

C530

0.1/50V

1

2

1

2 op2

R523

590

H

L

CN502

2P op3

R527

470

1

2

H

L

CN503

2P

3

D509 BAV99

2

1

C527

2700p/50V

R529

470

3

D507

BAV99

1

2

1

2

H

L

CN504

2P

C524

0.068/50V

R528

390 1%

R533

15K 1%

C519

0.1/50V

R519

1M


Model

Title

Date

Interter

Rev:

VX1945wm-3

2

4

3

330K

R801

L801

BL4-06

20mH

R802

330K

C803

0.47/275V

D801

1

2

3

330K

R831

C801 C802

2200p/250V 2200p/250V

F801

2A/250V

+

R803

10K

R833

10K

5

6

7

8

IC802

10R

R806

DC 380V Max.

C805

2200p/400V

1

T801

SPW-055

R808

510K

R809

510K

AP2761I

Q804

1

R804

68K 2W

C806

4700p/400V

2

MUR1100ERL

D802

DC 700V Max.

C807

47u/25V

3

4

+

D804

A02-LF

5

R810

510K

R811

510K

DRV

Vcc

NC

HV

GND

CS

FB

BO

NCP1337

C810

0.1/50V

4

3

2

1

R815

12K 1%

11

10

7

6

10R

R827

1000p/500V

C813

1

2

3

D803

UFF80-015CT

10R

R828

1000p/500V

C814

9

8 1

2

3

D805

SRF5-04CT

1000u/10V

C818 +

5uH

L802

+ C815

1000u/25V

470u/25V

C817 +

5uH

L803

R812

10K

1K

R813

R807

1.2K

R832

1K2

R805

0R18 2W

2

Q803

PMBT3906

1

3

14V

ZD804

C823

2200p/400V

4

3

IC801

LTV817M

R814

1K R818

200

R819

1K

R830

10K 1K

R821

1

2

PMBT3904 NC

Q802

1

R820

1K

C824

0.1/50V NC

C821

0.1/100V

+

D806

1N4148 C

R

A IC803

TLV431ALP

C827

47u/25V

+

ZD803

9V1

R822

5K1 1%

R824

R817

200R

3K3 1%

R823

51K 1%

3

1 2 3

P801

AC_SKT

CN801

3

4

5

1

2

6

7

8

60mm 8P

TO SCALER BD CN101 C825

0.1/50V

VCC5V

ON/OFF 2

Volume 4

Audio_MUTE 4

R816

100R 1W

+14V

Q801

2PC1815GR

ZD801

5V6 NC

VCC5V

ZD802

16V NC

R825

1K NC

R826

200R NC


Model

Title

Date

POWER SUPPLY

Rev:


66


VX1945wm-3

11. PCB Layout Diagrams


67


VX1945wm-3


68


VX1945wm-3


69


VX1945wm-3


70


VX1945wm-3

* Reader’s Response*

Dear Readers:

Thank you in advance for your feedback on our Service Manual, which allows continuous improvement of our products. We would appreciate your completion of the Assessment Matrix below, for return to

ViewSonic Corporation.

Assessment

A. What do you think about the content of this Service Manual?

Unit Excellent Good Fair Bad




4. Circuit Description

5. Adjustment Procedure



8. Exploded Diagram and Exploded Parts List

9. Block Diagrams


11.PCB Layout Diagrams

B. Are you satisfied with this Service Manual?

Item

1. Service Manual Content

2. Service Manual Layout

3. The form and listing

Excellent Good Fair Bad

C. Do you have any other opinions or suggestions regarding this service manual?

Name:

Company:

Reader’s basic dada:

Title:

Add:

Tel: Fax:

E-mail:

After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile

1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes

([email protected])


71


ViewSonic VS11444 Service manual

Service Manual

Model No. VS11444

19” Color TFT LCD Display

Revision History

TABLE OF CONTENTS

1. Precautions and Safety Notices

5.2 Handling and Placing Methods

2. Specification

2.1. INTRODUCTION

2.2. GENERAL specification

2.3. VIDEO INTERFACE

2.4. POWER SUPPLY

2.5. ELECTRICAL REQUIREMENT

3. Front Panel Function Control Description

Adjusting the Screen Image

Main Menu Controls

ViewDock

Key Features

Physical Description

Card Reader Installation

USB Hub Installation

ViewDock

Connecting with iPod

Subwoofer Volume Control

4. Circuit Description

5. Adjustment Procedure

5.1 Key Function Description

5.2 Hot Key Operation

5.4 Burn-in pattern

5.5 Auto Color (Automatically calibrate chip ADC parameter by using chip

internal DAC)

5.6 EDID (Rewrite EDID data to EEPROM)

5.7 Upload firmware to MCU via VGA Cable

5.7.3 After repair, to ensure the quality you should do the following test and adjustment

Disassembly Procedure

6. Troubleshooting Flow Chart

7. Recommended Spare Parts List

8. Exploded Diagram and Exploded Parts List

PACKING PART LIST (VX1945wm-3)

9. Block Diagram

10. Schematic Diagrams

Layout guide :

1. Tie the I.C. pin 1,2,3,18,19,20 to ground with a

large copper pour (open mask layer)

From IF BD

11. PCB Layout Diagrams

* Reader’s Response*

Key Features

Related manuals

ViewSonic

VX1945wm

ViewSonic

VX1945wm-3

LogiLink

UA0181

Dell

E1709W

ViewSonic

VX1945wm

ViewSonic

VX1945wm