Viewsonic VA2012W-1, VA2012WB-1 Service Manual

Service Manual

ViewSonic VA2012w

VA2012wb

Model No. VS10859

20” Color TFT LCD Display

ViewSonic

(VA2012w_VA2012wb_SM Rev. 1a Nov. 2005)



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

Copyright

¤

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.

ECR Number

1a 11/29/05

Revision History

Description of Changes

Initial Release

EditorRevision SM Editing Date

BonnieT.

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TABLE OF CONTENTS

1. Precautions and Safety Notices

2. Specification

3. Front Panel Function Control Description

4. Circuit Description

5. Adjustment Procedure

6. Troubleshooting Flow Chart

7. Recommended Spare Parts List

8. Exploded Diagram and Exploded Parts List

9. Block Diagram

10. Schematic Diagrams

11. PCB Layout Diagrams

1

5

12 14

25 51

54

60 64 65

72

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1. Precautions and Safety Notices

1. Appropriate Operation

(1) Turn off the product before cleaning. (2) Use only a dry soft cloth when cleaning the LCD panel surface. (3) Use a soft cloth soaked with mild detergent to clean the display housing. (4) Use only a high quality, safety approved AC/DC power cord. (5) Disconnect the power plug from the AC outlet if the product will not be used for a long period of time. (6) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off. (7) Do not touch the LCD panel surface with sharp or hard objects. (8) Do not place heavy objects on the LCD display, video cable, or power cord. (9) Do not use abrasive cleaners, waxes or solvents for your cleaning. (10) Do not operate the product under the following conditions:

- Extremely hot, cold or humid environment.

- Areas containing excessive dust and dirt.

- Near any appliance generating a strong magnetic field.

- In direct sunlight.

2. 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 guidelines.

3. Safety Check

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

exposed in such areas as the associated transformer circuits.

4. LCD Module Handling Precautions

4.1 Handling Precautions

(1) Since front polarizer is easily damaged, pay attention not to scratch it. (2) Be sure to turn off power supply when connecting or disconnecting input connector. (3) Wipe off water drops immediately. Long contact with water may cause discoloration or spots. (4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth. (5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard surface. (6) Since CMOS LSI is used in this module, take care of static electricity and ensure human earth when handling. (7) Do not open or modify the Module Assembly. (8) Do not press the reflector sheet at the back of the module in any direction. (9) In the event that a Module must be put back into the packing container slot after it was taken out of the

container, do not press the center of the CCFL Reflector edge. Instead, press at the far ends of the CFL Reflector edge softly. Otherwise the TFT Module may be damaged.

(10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate or tilt the Interface

Connector of the TFT Module.

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(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist or

bend the TFT Module even momentarily. When designing the enclosure, it should be taken into consideration that no bending/twisting forces may be applied to the TFT Module from outside. Otherwise the TFT Module may be damaged.

(12) The cold cathode fluorescent lamp in the LCD contains a small amount of mercury. Please follow local

ordinances or regulations for disposal.

(13) The LCD module contains a small amount of materials having no flammability grade. The LCD module

should be supplied with power that complies with the requirements of Limited Power Source (IEC60950 or UL1950), or an exemption should be applied for.

(14) The LCD module is designed so that the CCFL in it is supplied by a Limited Current Circuit (IEC60950

or UL1950). Do not connect the CCFL to a Hazardous Voltage Circuit.

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VA2012w series handling Notice

Correct Method Incorrect method

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Correct Method Incorrect method

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2. Specificationtion

GENERAL specification

Test Resolution & Frequency “1680 X 1050” @ 60Hz

Test Image Size Full Size

Contrast and Brightness Controls

Factory Default:

Contrast = 70%, Brightness = 100%

VIDEO INTERFACE

Analog Input Connector DB-15 (Analog), refer the appendix A

Digital Input Connector DVI-D (Digital), refer the appendix B

Default Input Connector Defaults to the first detected input

Equal to twice the weight of the monitor for

Video Cable Strain Relief

five minutes

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

1. Video RGB (Analog)

Video Signals

Separate

2. TMDS (Digital)

Video Impedance 75 Ohms (Analog), 100 Ohms (Digital)

Maximum PC Video Signal 950 mV with no damage to monitor

Maximum Mac Video Signal 1250 mV with no damage to monitor

Sync Signals TTL

DDC 1/2B Compliant with Revision 1.3

Sync Compatibility Separate Sync

Shall be compatible with all PC type

Video Compatibility

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,

Resolution Compatibility

1280 x 720, 1280 x 1024, 1600 x 1200,

1680 x 1050

Exclusions Not compatible with interlaced video

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POWER SUPPLY

Internal Power Supply Part Number: EADP-64CF

Input Voltage Range 90 TO 264 VAC

Input Frequency Range 47.5 TO 63 HERTZ

Short Circuit Protection Output can be shorted without damage

Over Current Protection Output current <10A

Leakage Current 3.5mA (Max) at 254VAC / 60Hz

EFFICIENCY 80 % typical at 115VAC Full Load

Fuse Internal and not user replaceable

Power Dissipation 64 Watts (typ)

Max Input AC Current 1.5 Arms @ 90VAC

INRUSH CURRENT (COLD START) 80 A(max) @230VAC

Shall start and function properly when under

Power Supply Cold Start

Power Supply Transient Immunity

Power Supply Line Surge Immunity

Power Supply Missing Cycle Immunity

Power Supply Acoustics

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

Shall be able to function properly, without

reset or visible screen artifacts, when ½

cycle of AC power is randomly missing at

nominal input

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

Separate 3-prong NEMA 5-15P type plug.

US Type Power Cable

Length = 1.8m. Connects to AC/DC Power

Adapter. Color = Black

Schuko CEE7-7. Length = 1.8m, Connects

European Type Power Cable

to AC outlet. Color = Black

Power Saving Operation(Method) VESA DPMS Signaling

ON Mode < 50 W (max) / 47 W (typ)

Power Consumption

ACTIVE OFF < 2W

Recovery Time ON MODE = N/A, ACTIVE OFF < 3 SEC

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ELECTRICAL REQUIREMENT

Horizontal / Vertical Frequency

Horizontal Frequency ANALOG: 30 – 94 KHZ

DIGITAL : 30-82 KHZ

Vertical Refresh Rate 50 – 75 HZ.

Maximum Pixel Clock Analog: 205 Mhz

Digital: 165 MHz

Sync Polarity Independent of sync polarity.

Timing Table

Item Timing Analog Digital

1. 640 x 350 @ 70Hz, 31.5kHz Yes Yes

2. 640 x 400 @ 70Hz, 31.5kHz Yes Yes

3. 640 x 480 @ 60Hz, 31.5kHz Yes Yes

4. 640 x 480 @ 67Hz, 35.0kHz Yes Yes

5. 640 x 480 @ 72Hz, 37.9kHz Yes Yes

6. 640 x 480 @ 75Hz, 37.5kHz Yes Yes

7. 720 x 400 @ 70Hz, 31.5kHz Yes Yes

8.

9.

10.

720 x 480i 59.94/60Hz @ 15.7 kHz

720 x 576p 50Hz @ 31.25kHz

720 x 576i 50Hz @ 15.62kHz

Yes Yes

11. 800 x 600 @ 56Hz, 35.1kHz Yes Yes

12. 800 x 600 @ 60Hz, 37.9kHz Yes Yes

13. 800 x 600 @ 75Hz, 46.9kHz Yes Yes

14. 800 x 600 @ 72Hz, 48.1kHz Yes Yes

15. 832 x 624 @ 75Hz, 49.7kHz Yes Yes

16. 1024 x 768 @ 60Hz, 48.4kHz Yes Yes

17. 1024 x 768 @ 70Hz, 56.5kHz Yes Yes

18. 1024 x 768 @ 72Hz, 58.1kHz Yes Yes

19. 1024 x 768 @ 75Hz, 60.0kHz Yes Yes

20.

1280x720p 50Hz @ 37.5kHz

Yes Yes

21. 1280x 720 @ 60Hz, 45kHz Yes Yes

22. 1280 x 1024 @ 60Hz, 63.4kHz Yes Yes

23. 1280 x 1024 @ 75Hz, 79.97kHz Yes Yes

24. 1600 x 1200 @ 60Hz, 75kHz Yes Yes

25. 1600 x 1200 @ 70Hz, 87.5kkHz Yes No

26. 1600 x 1200 @ 75Hz, 93.8kHz Yes No

27. 1680 x 1050 @ 60Hz, 65.3 kHz Yes Yes

28. 1680 x 1050 @ 75Hz, 82.3 kHz Yes No

29. 1920 x 1080i @ 50Hz, 56.5kHz Yes Yes

30. 1920 x 1080p @ 50Hz, 62.5kHz Yes Yes

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Primary Presets

“1680 x 1050” @ 60Hz

User Presets

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

configuration

Changing Modes

● Maximum Mode Change Blank Time for image stability : 3 seconds (Max), excluding

“Auto Adjust” time

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

when execute “Auto Adjust”

● 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

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TFT LCD PANEL

Panel Source Identify

(1) ID label - The panel code “Q” for QDI panel and “T” for Hannstar panel should be

shown on the lower right side of ID label.

(2) UPC label - The panel code “Q” for QDI panel and “T” for Hannstar panel should be

shown on the lower right side of UPC label.

(3) Main board - The panel code “Q” for QDI panel and “T” for Hannstar panel should be

shown on the main board by F/W version sticker or silkscreen.

Panel Characteristics :

1st Source Panel e

QDI QD20AL01

Type TN Technology”

Active Size 433.44 (H) x 270.9 (V)

Pixel Arrangement RGB Vertical Stripe

Pixel Pitch 0.258 mm

GLASS TREATMENT Anti Glare (Hard coating 3H)

# OF BACKLIGHTS 6 CCFL edge-light (3 top / 3 bottom)

BACKLIGHT LIFE 40,000 Hours (Min)

Luminance –

Condition:

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

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

CT = 6500K, Contrast = Max,

Brightness = Max

Brightness Uniformity 77 % Entire Area (typ)

Contrast Ratio 600:1 (Typ), 400:1 (Min)

Color Depth 16.2 million colors (6 bit panel)

Viewing Angle (Horizontal) 140 deg @ CR>10, ??? deg @ CR>5

VIEWING ANGLE (VERTICAL) 125 deg @ CR>10, ??? deg @ CR>5

Response Time

10%-90% @ Ta=25°C

8 ms (Tr= 2 ms, Tf = 6 ms) (Typ)

16 ms (Tr= XXX ms, Tf = XXX ms) (Max)

Panel Defects Please see Panel Quality Specifications.

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IMAGE PERFORMANCE

Factory Defaults

Item Defaults Item Defaults

Contrast 70% Sharpness 1

Brightness 100% OSD H. Position 50%

Volume 50% OSD V. Position 50%

Balance 50% OSD Time Out 15 Sec

Bass 50% OSD Background On

Treble 50% OSD PIVOT Off

Color Temperature 6500K Resolution Notice Enabled

720x400/640x400 720x400

Display Size

Horizontal Display Size, Primary Preset Full Screen

Vertical Display Size, Primary Preset Full Screen

Preset Color Temperatures

SRGB It should meet IEC 61966-2-1 (1999-10) standard

Preset 1 9300K

CCT (Max) = 10250K.

CCT (Min) = 8500K

Preset 2 6500K (Primary)

CCT (Max) = 6950K

CCT (Min) = 6100K

Preset 3 5400K

CCT (Max) = 5915K

CCT (Min) = 4935K

Preset Color Temperature

Adjustability

Wx= 0.283 +/- 0.02,

Wy= 0.298 +/- 0.02

Wx= 0.313 +/- 0.02

Wy= 0.329 +/- 0.02

Wx= 0.335 +/- 0.02

Wy= 0.350 +/- 0.02

Each color preset shall be adjustable. Red, Green,

and Blue shall be individually controlled.

Video Cards Compatibility

Peaking Performance : Peaking is not adjustable

Raster Artifacts

● Video Artifacts : No visible streaking, sag, or smearing artifacts when driven by the

specified video cards in the primary mode and after user adjustment to best condition

● Power Supply, and Grounding Artifacts : No visible artifacts in any specified video

mode within the horizontal or vertical frequency range of the monitor

● Temperature Drift : Image shall not drift or lose fine-tune adjustment

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MECHANICAL

Dimension (Desktop)

Width 479 mm

Height 423 mm

Depth 216 mm

Monitor Weight 5.5 kg / 12.1 lbs

Dimension (Head Only / Wall Mount)

Width 479 mm

Height 350.5 mm

Depth 62.7 mm

Monitor Weight 4.9 kg / 10.78 lbs

Ergonomics

Tilt Up 20 degrees minimum

Tilt Down -5 degrees

Swivel Right N/A

Swivel Left N/A

Vibration Test

● Vibration Frequency : 1 – 200 Hz

● Acceleration : 1.14 G RMS

● Sweep Time : 1 oct. / min

● Test Time : 60 min per axis, total 3 axis / 6 main face

● Vibration Test Data shall be submitted for approval to ViewSonic before Mass

Production

Drop Test (100G)

● Weak Corner : 76.2 cm

● Six Faces : 76.2 cm

● 3 Edges Radiating From Weak Corner : 76.2 cm

● Drop Test Data shall be submitted for approval to ViewSonic before Mass Production

4-11 ENVIRONMENTAL

● Operating Temperature : 0°C to +40°C

● Storage Temperature : -20°C to +60°C

● Operating Relative Humidity : 20% to 90% RH Non-Condensing

● Storage Relative Humidity : 5% to 90% RH Non-Condensing

● Operating Altitude : 0 to +3,000 meters

● Storage Altitude : 0 to +12,000 meters

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3. Front Panel Function Control Description

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Main Menu Controls

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

A. Auto Image Adjust automatically sizes, centers, and fine tunes the video signal to eliminate waviness and distortion. Press the [2]

button to obtain a sharper image.

NOTE: Auto Image Adjust works with most common video cards. 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.

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

C. Brightness adjusts the lamps current to control the screen brightness.

D. Input adjusts the Analogue or the Digital input source

E. Audio Adjust the volume increase or decrease and mute function

F. Color Adjust

green (G), and blue (B). The factory setting for this product is 6500K (6500° Kelvin).

9300K — Adds blue to the screen image for cooler white (used in most office settings with fluorescent lighting).

5400K — Adds red to the screen image for warmer white and richer red.

Custom User Color — Individual adjustments for red, green, and blue.

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

2 To adjust selected color, press or .

3 When you are finished making all color adjustments, press button [1] twice.

provides several color options: preset color temperatures and Custom User Color which allows you to adjust red (R),

G. Information displays the timing mode (video signal input) coming from the graphics card in your computer. See your graphic

card’s user guide for instructions on changing the resolution and refresh rate (vertical frequency). VESA 1280 x 1024 @ 60 Hz

(recommended) means that the resolution is 1280 x 1024 and the refresh rate is 60 Hertz.

H. Manual Image Adjust

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

NOTE: Vertical size is automatic with your LCD display.

H./V. Position adjusts horizontal and vertical position of the screen image. You can toggle between Horizontal and Vertical by

pressing button [2]. Horizontal moves the screen image to the left or to the right. Vertical moves the screen image up and down.

Fine Tune sharpens focus by aligning the illuminated text and/or graphic characters.

Sharpness adjusts the clarity and focus of the screen image.

Setup Menu controls are explained below:

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

Resolution Notice displays the recommended resolution for this LCD display.

Enable allows the Resolution Notice to appear on-screen.

Disable will not allow the Resolution Notice to appear on-screen.

OSD Timeout sets the length of time an on-screen display screen is displayed. For example, with a“15 second” setting, if a

I. OSD Position allows you to move the on-screen display menus and control screens.

J. Memory Recall

in this user guide.

controls are explained below:

control is not pushed within 15 seconds, the display OSD disappears.

returns adjustments to the original factory settings if the display is operating in a factory Preset Timing Mode listed

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4. Circuit Description

1. Outline

1.1 Power On/Off, (2) Enter button, up arrow button, down arrow button, (1) MENU button, Volume “+” button,

Volume “-“button and Mute button on the front panel.

1.2 D-sub 15pin connector, DVI-D connector, audio line-in receptacle, and AC-IN are located on the back side

of the cabinet.

1.3 OSD menu includes the following function;

Auto Image Adjust (only active under analog input)

Contrast/Brightness

Input Select

Audio Adjust

Color Adjust

Information

Manual Image Adjust

Setup Menu

Memory Recall

1.4 Contrast and Brightness can be directly controlled with UP / DOWN key.

1.5 Audio volume can be controlled with Volume “+” key ,Volume “-“ key and UP/DN key when Audio Adjust

1

11

1

5

4

3

2

6

2

7

3

8

4

9

12

13

14

5

15

10

CN6

DB15HD

17

PIN MNEMONI SIGNAL

1 RV Red Video

2 GV Green Video

3 BV Blue Video

4 NC None

5 GND Ground (DDC

return)

6 RG Red GND

7 GG Green GND

8 BG Blue GND

9 +5V +5V (for DDC)

10 SG Sync GND

11 NC None

12 SDA DDC Data

13 HS Horizontal Sync

14 VS Vertical Sync

15 SCL DDC Clock

menu is active.

Pushing Mute key can disable audio output.

1.6

2. CONNECTORS

2.1 AC inlet : CEE22 typed connector

2.2 Audio : Line-in,

CN9

Line-in receptacle

(Line-in receptacle is green)

2.3 Video signal connector for analog input: 15P Mini D-Sub

16

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Video signal connector for digital input: 24pin DVI-D connector

2.4

CN9

Pin No. Signal Name Description

1 RX2- TMDS negative differential input, channel 2

1

RX2-

RX2+

GND

RX4-

RX4+

SCL

SDA

VS

RX1-

RX1+

GND

RX3-

RX3+

5V

GND

HP

RX0-

RX0+

GND

RX5-

RX5+

GND

RXC+

RXC-

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

2 RX2+ TMDS positive differential input, channel 2

3 GND Logic Ground

4 RX4- Reserved. No connection

5 RX4+ Reserved. No connection

6 SCL DDC2B Clock

7 SDA DDC2B Data

8 VS Reserved. No connection

9 RX1- TMDS negative differential input, channel 1

10 RX1+ TMDS positive differential input, channel 1

11 GND Logic Ground

12 RX3- Reserved. No connection

13 RX3+ Reserved. No connection

14 +5V Power

15 GND Logic Ground

16 HP SENSE Pin, Pull High

17 RX0- TMDS negative differential input, channel 0

DVI-D

18 RX0+ TMDS positive differential input, channel 0

19 GND Logic Ground

20 RX5- Reserved. No connection

21 RX5+ Reserved. No connection

22 GND Logic Ground

23 RXC+ TMDS positive differential input, reference clock

24 RXC- TMDS negative differential input, reference clock

3. ELECTRICAL SPECIFICATIONS

3.1 Standard conditions

Display Area

Video Signal

Contrast

Brightness

Ambient

Input

Warming up

Display

433.44 x 270.9 mm

0.7Vpp

Default

20 +/- 5 °C

AC

> 30 min

1680 x 1050

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3.2 POWER

3.2.1 Power supply

Input voltage 100~240Vac

Power frequency 50~60Hz

Input current

Inrush current

Power consumption 47W(typical);50Watts(Max)

3.2.2 Power Management

State Power Indicator

On 47Watts Blue

Standby < 2Watts Amber

Off <2Watts Off

<1.5Arms@90Vac

80A(Max) at 230Vac(cold start)

3.3 Acceptable timing

If the timing is within following specification, this LCD display can automatically function with a certain

position.

Horizontal: Sync frequency: 30~94 KHz (Analog), 30~82KHz (Digital)

Vertical: Sync frequency: 50~75*Hz

3.4 Signal level and input impedance

3.4.1 Video Signal level: 0.7Vp-p Video signal.

3.4.2 Sync Signal level

H/V Separate: TTL level

3.4.3 Input impedance

Analog video input: 75 ohm

Digital video input: 100 ohm

Sync input: > 1 k ohm

Audio input: 10K ohm

4. SIGNAL CABLE: Signal cable with Mini D-Sub 15P connectors at both ends. Length: 1.8 meter.

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5. EDID data

5.1. Analog EDID: Analog EDID is stored in IC4

VA2012wb Analog:

Time: 08:44:23

Date: Wed Sep 07, 2005

______________________________________________________________________

VIEWSONIC CORPORATION

EDID Version # 1, Revision # 3

DDCTest For: ViewSonic VA2012wSERIES

______________________________________________________________________

EDID Block 0, Bytes 0-127

128 BYTES OF EDID CODE:

0 1 2 3 4 5 6 7 8 9

________________________________________

0 | 00 FF FF FF FF FF FF 00 5A 63

10 | 1C 6A 01 01 01 01 01 0F 01 03

20 | 08 2B 1B 78 2E C3 15 A6 56 4A

30 | 9B 24 16 50 54 BF EF 80 B3 0F

40 | A9 40 90 40 90 4F 81 80 81 40

50 | 71 4F A9 4F 21 39 90 30 62 1A

60 | 27 40 68 B0 36 00 B1 0F 11 00

70 | 00 1C 00 00 00 FF 00 50 56 57

80 | 30 35 30 31 30 30 30 30 31 0A

90 | 00 00 00 FD 00 32 4B 1E 5E 15

100 | 00 0A 20 20 20 20 20 20 00 00

110 | 00 FC 00 56 41 32 30 31 32 77

120 | 53 45 52 49 45 53 00 BA

______________________________________________________________________

(08-09) ID Manufacturer Name ________________ = VSC

(11-10) Product ID Code _____________________ = 6A1C

(12-15) Last 5 Digits of Serial Number ______ = Not Used

(16) Week of Manufacture _________________ = 01

(17) Year of Manufacture _________________ = 2005

(10-17) Complete Serial Number ______________ = See Descriptor Block

(18) EDID Version Number _________________ = 1

(19) EDID Revision Number ________________ = 3

(20) VIDEO INPUT DEFINITION:

Analog Signal

0.700, 0.300 (1.000 Vp-p)

Separate Syncs

(21) Maximum Horizontal Image Size ________________ = 430 mm

(22) Maximum Vertical Image Size __________________ = 270 mm

(23) Display Gamma ________________________________ = 2.20

(24) Power Management and Supported Feature(s):

Active Off/Very Low Power, Standard Default Color Space,

Preferred Timing Mode

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Display Type = R/G/B Color

(25-34) CHROMA INFO:

Red X - 0.651 Green X - 0.289 Blue X - 0.141 White X - 0.313

Red Y - 0.336 Green Y - 0.608 Blue Y - 0.087 White Y - 0.329

(35) ESTABLISHED TIMING I:

720 X 400 @ 70Hz (IBM,VGA)

640 X 480 @ 60Hz (IBM,VGA)

640 X 480 @ 67Hz (Apple,Mac II)

640 X 480 @ 72Hz (VESA)

640 X 480 @ 75Hz (VESA)

800 X 600 @ 56Hz (VESA)

800 X 600 @ 60Hz (VESA)

(36) ESTABLISHED TIMING II:

800 X 600 @ 72Hz (VESA)

800 X 600 @ 75Hz (VESA)

832 X 624 @ 75Hz (Apple,Mac II)

1024 X 768 @ 60Hz (VESA)

1024 X 768 @ 70Hz (VESA)

1024 X 768 @ 75Hz (VESA)

1280 X 1024 @ 75Hz (VESA)

(37) Manufacturer's Reserved Timing:

1152 X 870 @ 75Hz (Apple,Mac II)

(38-53) Standard Timing Identification:

1680 X 1050 @75Hz

1600 X 1200 @60Hz

1400 X 1050 @60Hz

1400 X 1050 @75Hz

1280 X 1024 @60Hz

1280 X 960 @60Hz

1152 X 864 @75Hz

1600 X 1200 @75Hz

______________________________________________________________________

(54-71) Detailed Timing / Descriptor Block 1:

1680x1050 Pixel Clock: 146.25 MHz

______________________________________________________________________

Horizontal Image Size: 433 mm Vertical Image Size: 271 mm

Refreshed Mode: Non-Interlaced Normal Display - No Stereo

Horizontal:

Active Time: 1680 pixels Blanking Time: 560 pixels

Sync Offset: 104 pixels Sync Pulse Width: 176 pixels

Border: 0 pixels Frequency: 65.29 KHz

Vertical:

Active Time: 1050 lines Blanking Time: 39 lines

Sync Offset: 3 lines Sync Pulse Width: 6 lines

Border: 0 lines Frequency: 59.95 Hz

Digital Separate, Horizontal Polarity (-) Vertical Polarity (+)

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______________________________________________________________________

(72-89) Detailed Timing / Descriptor Block 2:

Monitor Serial Number:

PVW050100001

______________________________________________________________________

(90-107) Detailed Timing / Descriptor Block 3:

Monitor Range Limits:

Min Vertical Freq - 50 Hz

Max Vertical Freq - 75 Hz

Min Horiz. Freq - 30 KHz

Max Horiz. Freq - 94 KHz

Pixel Clock - 210 MHz

Secondary GTF - Not Supported

______________________________________________________________________

(108-125) Detailed Timing / Descriptor Block 4:

Monitor Name:

VA2012wSERIES

(126) No Extension EDID Block(s)

(127) CheckSum OK

5.2. Digital EDID: Digital EDID is stored in IC4.

Appendix F : Digital EDID

VA2012wb

Time: 08:45:59

Date: Wed Sep 07, 2005

______________________________________________________________________

VIEWSONIC CORPORATION

EDID Version # 1, Revision # 3

DDCTest For: ViewSonic VA2012wSERIES

______________________________________________________________________

EDID Block 0, Bytes 0-127

128 BYTES OF EDID CODE:

0 1 2 3 4 5 6 7 8 9

________________________________________

0 | 00 FF FF FF FF FF FF 00 5A 63

10 | 1C 6A 01 01 01 01 01 0F 01 03

20 | 80 2B 1B 78 2E C3 15 A6 56 4A

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30 | 9B 24 16 50 54 BF EF 80 B3 0F

40 | A9 40 90 4F 90 40 81 80 81 40

50 | 71 4F 31 0A 21 39 90 30 62 1A

60 | 27 40 68 B0 36 00 B1 0F 11 00

70 | 00 1C 00 00 00 FF 00 50 56 57

80 | 30 35 30 31 30 30 30 30 31 0A

90 | 00 00 00 FD 00 32 4B 1E 52 11

100 | 00 0A 20 20 20 20 20 20 00 00

110 | 00 FC 00 56 41 32 30 31 32 77

120 | 53 45 52 49 45 53 01 0E

______________________________________________________________________

(08-09) ID Manufacturer Name ________________ = VSC

(11-10) Product ID Code _____________________ = 6A1C

(12-15) Last 5 Digits of Serial Number ______ = Not Used

(16) Week of Manufacture _________________ = 01

(17) Year of Manufacture _________________ = 2005

(10-17) Complete Serial Number ______________ = See Descriptor Block

(18) EDID Version Number _________________ = 1

(19) EDID Revision Number ________________ = 3

(20) VIDEO INPUT DEFINITION:

Digital Signal

Non - VESA DFP 1.x Compatible

(21) Maximum Horizontal Image Size ________________ = 430 mm

(22) Maximum Vertical Image Size __________________ = 270 mm

(23) Display Gamma ________________________________ = 2.20

(24) Power Management and Supported Feature(s):

Active Off/Very Low Power, Standard Default Color Space,

Preferred Timing Mode

Display Type = R/G/B Color

(25-34) CHROMA INFO:

Red X - 0.651 Green X - 0.289 Blue X - 0.141 White X - 0.313

Red Y - 0.336 Green Y - 0.608 Blue Y - 0.087 White Y - 0.329

(35) ESTABLISHED TIMING I:

720 X 400 @ 70Hz (IBM,VGA)

640 X 480 @ 60Hz (IBM,VGA)

640 X 480 @ 67Hz (Apple,Mac II)

640 X 480 @ 72Hz (VESA)

640 X 480 @ 75Hz (VESA)

800 X 600 @ 56Hz (VESA)

800 X 600 @ 60Hz (VESA)

(36) ESTABLISHED TIMING II:

800 X 600 @ 72Hz (VESA)

800 X 600 @ 75Hz (VESA)

832 X 624 @ 75Hz (Apple,Mac II)

1024 X 768 @ 60Hz (VESA)

1024 X 768 @ 70Hz (VESA)

1024 X 768 @ 75Hz (VESA)

1280 X 1024 @ 75Hz (VESA)

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(37) Manufacturer's Reserved Timing:

1152 X 870 @ 75Hz (Apple,Mac II)

(38-53) Standard Timing Identification:

1680 X 1050 @75Hz

1600 X 1200 @60Hz

1400 X 1050 @75Hz

1400 X 1050 @60Hz

1280 X 1024 @60Hz

1280 X 960 @60Hz

1152 X 864 @75Hz

640 X 400 @70Hz

______________________________________________________________________

(54-71) Detailed Timing / Descriptor Block 1:

1680x1050 Pixel Clock: 146.25 MHz

______________________________________________________________________

Horizontal Image Size: 433 mm Vertical Image Size: 271 mm

Refreshed Mode: Non-Interlaced Normal Display - No Stereo

Horizontal:

Active Time: 1680 pixels Blanking Time: 560 pixels

Sync Offset: 104 pixels Sync Pulse Width: 176 pixels

Border: 0 pixels Frequency: 65.29 KHz

Vertical:

Active Time: 1050 lines Blanking Time: 39 lines

Sync Offset: 3 lines Sync Pulse Width: 6 lines

Border: 0 lines Frequency: 59.95 Hz

Digital Separate, Horizontal Polarity (-) Vertical Polarity (+)

______________________________________________________________________

(72-89) Detailed Timing / Descriptor Block 2:

Monitor Serial Number:

PVW050100001

______________________________________________________________________

(90-107) Detailed Timing / Descriptor Block 3:

Monitor Range Limits:

Min Vertical Freq - 50 Hz

Max Vertical Freq - 75 Hz

Min Horiz. Freq - 30 KHz

Max Horiz. Freq - 82 KHz

Pixel Clock - 170 MHz

Secondary GTF - Not Supported

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______________________________________________________________________

(108-125) Detailed Timing / Descriptor Block 4:

Monitor Name:

VA2012wSERIES

(126) Extension EDID Block(s): 1

(127) CheckSum OK

Time: 08:45:59

Date: Wed Sep 07, 2005

6. THEORY OF OPERATION

This section describes the function of the LCD monitor per functional block.

This monitor includes MB board, power board, Inverter board and button board.

6.1 MB BOARD

The MB board is a two-layer, single-landed. 12V DC power from the power adapter enters the board through

connector CN6. Other connectors on the board are for audio speaker and button board .The VGA cable is a signal

cable that contains video signal, sync signal and DDC signal from PC VGA adapter. This system board consists of

4 functional areas: flat panel controller, flash ROM, power regulator and Audio amplifier

6.1.1 Flat panel controller… NT68563HF (IC2)

The heart of the system board is the scalar chip of NT68563HF. The scaler is a highly integrated flat panel display

controller that interfaces analog, digital, and video inputs. It combines a triple ADC, a DVI compliant TMDS

receiver, a multi-color on screen display (OSD) controller and many other functions in a single chip. It provides

user a simple, flexible and cost-effective solution for various flat panel display products.

The NT68563HF operates at frequencies up to 205MHz (analog only), suitable for LCD monitor up to UXGA

resolution. The NT68563HF also build-in noise reduction function to provide more stable video quality, spread

spectrum to provide low EMI solution, sRGB for video color space convert, post pattern for manufacture test.

a) Clock Generation:

This is the input pair to an internal crystal oscillator and corresponding logic. A 12.000 MHz crystal is

recommended.

b) Hardware Reset (Pin127):

Hardware Reset signal is provided by MCU (IC3), it is active high.

c) Analog to Digital Converter:

The NT68563HF chip has triple ADC's (analog-to-digital converters), one for each color (red, green and

blue) .The analog RGB and synchronous signals are connected to NT68563 as described below:

Pin Name Pin Number

Red + 25

Red - 26

Green + 23

Green - 24

Blue + 20

Blue - 21

H sync 39

V sync 40

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d) Internal OSD: Internal SRAM allows up to 2048 characters, with programmable OSD frame size. Width is

64 columns, and Height is 32 row.

e) On chip TMDS receiver: The NT68563HF integrated TMDS receiver, which operates up to 165MHz and

can directly connect to all DVI compliant TMDS transmitters. The TMDS signals are connected to

NT68563HF as described bellow:

Pin Name Pin NO.

TX0+ 9

TX0- 8

TX1+ 6

TX1- 5

TX2+ 3

TX2- 2

TXC+ 11

TXC- 12

6.1.2 Mcu flash ROM

This is an 8031 CPU core embedded micro-controller, which is design for high-performance low-cost LCD

monitor control application. It contains an 8-bit 8031 micro-controller, on-chip 64 K bytes flash-type program

ROM, 1,280-bytes internal data memory, four 7-bit resolution A/D Converter, 10-channel 8-bit resolution PWM

DAC, two 16-bit timer/counters, and a UART.

a) PWM controlling function (Pin 8, Pin 9): The MCU 68F633 has two GPIO to control audio volume and

back light brightness.

b) Serial interface ports pin 25~26(DVI) and pin 27~28(VGA): This serial interface ports communicate with

MCU and support up to 400Kbit per second transmit rate.

6.1.2 Power Regulator AIC1563 (U1), AIC1117 (U3, U4, U5): The AIC1563 is a monolithic control IC

containing the primary functions required for DC-to-DC converters. The device consists of an internal

temperature compensated reference, comparator, controlled duty cycle.

Oscillator with an active current sense circuit, desired output voltage are determined by the equation,

Volt = 1.25 *(1 + R121 / R122), in this case, the output voltage are 5 Volts

AIC1117 (U3, U4, U5): The AIC1117 is a low dropout positive adjustable regulator with minimum of 800mA

output current capability.

So it is well suited for 3.3 V and 2.5 V Regulator.

U5 as a 1.8V regulator, desired output voltage are determined by the equation

Volt=1.25 x (1 + R90/R88) = 1.8

U3 as a 3.3V regulator, desired output voltage are determined by the equation

Volt=1.255 x (1+ R86/R85) = 3.3

U4 as a 3.3V regulator, desired output voltage are determined by the equation

Volt=1.255 x (1+ R89/R87) = 3.3

6.2 Audio Amplifier UTC TDA7496L (U9)

The TDA7496L is a stereo 2W+2W class AB power amplifier; Features of the TDA7496L include linear volume

control, Stand-by and mute functions.

6.3 Inverter Board

This is a specific inverter for VA2012 monitor 40W backlight which converters 20Vdc to drive 6 tubes cold

cathode fluorescent tubes. Electrical specification described as below.

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6.3.1 Inverter Electrical specification described as below.

INPUT

Rated Input Voltage 20Vdc

Input Voltage Range 18.5~21.5Vdc

Input Current <2A

Off state Input Power <0.1W

On / off control Voltage 2~5.25 for on, 0~0.2 for off

OUTPUT

Rated Output Strike-on Voltage 1500~2000Vrms

Rated Output Voltage 710Vrms at 6mA

Rated Output Frequency 40~50KHz

Rated Output Current 6~7mA

6.4 This is a general purpose AC / DC adapter which converter 90~240 Vac to a stabilized DC voltage 20V for

inverter and 12V for system board with rated output current of 4.16A

6.4.1 Power Electrical specification described as below.

INPUT

Rated Input Voltage 90~264Vac, 47~63Hz

Operation Input Voltage 100~240Vac, 50~60Hz

Input Current <1.5A@90Vac

Inrush Current <80A @ 230Vac(Cold start)

OUTPUT

Output Voltage Regulation +/-5%

Output Ripple and Noise 300 mVp-p

Rated Output Current <4.16A

Turn-on Delay <3 seconds

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5. Adjusting Procedure

1. Function test

(1) Test equipment

Color video signal and pattern generator (or PC with SXGV resolution)

(2) Test condition

Before function testing and alignment, the unit must warm up for at least 30 minutes under the following conditions:

1. Room temperature

2. With full-white screen , RGB , black pattern

3. with cycled display modes.

2. Test display modes

Item Timing Analog Digital

1. 640 x 350 @ 70Hz, 31.5kHz Yes Yes

2. 640 x 400 @ 70Hz, 31.5kHz Yes Yes

3. 640 x 480 @ 60Hz, 31.5kHz Yes Yes

4. 640 x 480 @ 67Hz, 35.0kHz Yes Yes

5. 640 x 480 @ 72Hz, 37.9kHz Yes Yes

6. 640 x 480 @ 75Hz, 37.5kHz Yes Yes

7. 720 x 400 @ 70Hz, 31.5kHz Yes Yes

8. 720 x 480i 59.94/60Hz @ 15.7 kHz Yes Yes

9. 720 x 576p 50Hz @ 31.25kHz Yes Yes

10. 720 x 576i 50Hz @ 15.62kHz Yes Yes

11. 800 x 600 @ 56Hz, 35.1kHz Yes Yes

12. 800 x 600 @ 60Hz, 37.9kHz Yes Yes

13. 800 x 600 @ 75Hz, 46.9kHz Yes Yes

14. 800 x 600 @ 72Hz, 48.1kHz Yes Yes

15. 832 x 624 @ 75Hz, 49.7kHz Yes Yes

16. 1024 x 768 @ 60Hz, 48.4kHz Yes Yes

17. 1024 x 768 @ 70Hz, 56.5kHz Yes Yes

18. 1024 x 768 @ 72Hz, 58.1kHz Yes Yes

19. 1024 x 768 @ 75Hz, 60.0kHz Yes Yes

20. 1280x720p 50Hz @ 37.5kHz Yes Yes

21. 1280x 720 @ 60Hz, 45kHz Yes Yes

22. 1280 x 1024 @ 60Hz, 63.4kHz Yes Yes

23. 1280 x 1024 @ 75Hz, 79.97kHz Yes Yes

24. 1600 x 1200 @ 60Hz, 75kHz Yes Yes

25. 1600 x 1200 @ 70Hz, 87.5kkHz Yes No

26. 1600 x 1200 @ 75Hz, 93.8kHz Yes No

27. 1680 x 1050 @ 60Hz, 65.3 kHz Yes Yes

28. 1680 x 1050 @ 75Hz, 82.3 kHz Yes No

29. 1920 x 1080i @ 50Hz, 56.5kHz Yes Yes

30. 1920 x 1080p @ 50Hz, 62.5kHz Yes Yes

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3. Test pattern

Item Test condition Pattern Specification Remark

1 Frequency & performance Cross-hatch pattern No noise is allowed, all colors must

be clear

2 Monitor saturation 16-gray scale pattern 3 to 4 levels must be saturated when

brightness and contrast are set to 100%

3 RGB color performance RGB color Check the color temperature of

RGB signal color

4 Sub-pixel defect RGB color Check the sub-pixel defect Pattern 3,

5 Full white Full white Check the brightness and contrast

ratio, and check for bright pixel defects

6 Full black Full black Pattern 7

7. 5-cycle pattern 5-cycle pattern Check the BU Pattern 8

8. 1-dot pattern 1-dot pattern Check the flicker Pattern 9

Pattern 1

Pattern 2

Pattern 3, 4, 5

4 , 5 Pattern 6

Pattern 1 Pattern2

Pattern 3 Pattern4

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Pattern 5 Pattern6

Pattern 7 Pattern 8

Pattern 9

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Firmware update procedure :

When you received a received monitor , please check whether the firmware version. If not , please following procedure to upgrade to the latest version .

1. Equipment needed :

- VA2012w/b

- PC ( Personal computer )

- LPT cable

- Fixture (LM5ISP)

- Firmware upgrade program

-

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2. Connection :

To PC

To Monitor

Appendix A : How to install the software for ISP :

0. To setup ISP environment :

Hardware: PC or notebook, parallel(printer) cable, ISP tooling. Software: If OS was Win2000 or WinXP , please install “PORT95NT.exe”

In order to ensure can execute ISP program, please set BIOS in PC or Notebook as Fig 0.0

Fig 0.0

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0.1 Double-click the “ PORT95NT.exe” in Windows & install the program. , see Fig 0.1

Fig 0.1

0.2 Keep on press “ Next “ 4 times to go through the installation processes, see Fig. 0.2

Fig. 0.2

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0.3 Choose “ Typical “ then press “ Next “ , see Fig. 0.3

Fig. 0.3

0.4 Keep on press “ Next “ 4 times to go through the installation processes, see Fig. 0.4

Fig. 0.4

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0.5 Install completed , restart the PC or notebook. See Fig 0.5

Fig. 0.5

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1. Install ISP

1.1 User could download ISP driver and PORT95NT install from Myson Century website (www.myson.com.tw )

1.2 After extracting the ZIP file , the total files list as Fig 1.0 , and double click the file of setup.exe to install.

Fig 1.0

1.3 Press “ Next “ button to continue., see Fig 1.1

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1.4 Keep default setting or press “ Change “ button for selecting the path that you want , and then press “ Next “ button to continue , see Fig 1.2

1.5 Press “ Install “ button to continue , see Fig 1.3

Fig 1.2

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1.6 Installation has finished , press “ Finish “ button , see Fig 1.4

Fig. 1.4

Appendix B : How to use software to upgrade the BIOS :

2.1 After installation , we could find the shortcut in the setting path or the program bar ( default setting ) , see Fig 2.1

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2.2 Security file is a key to use ISP function , press “ OK “ button , see Fig 2.2

Fig. 2.2

2.3 The warning is used to remind user of that different CPU rate may cause ISP function fail. (it’s limited by IIC protocol ) , press “ OK “ button , see Fig 2.3

Fig. 2.3

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2.4 Press “ Create Security File “ button to key in Security code . Adjusting bar to decrease speed of IIC bus , See Fig.

2.4 .

Fig. 2.4

2.5 Fig 2.5 shows the setting for security code of software ISP . it needs 2 command No. and key in command sequentially

for 7C , 4C , 77. The command No. and command must be set by user while coding. About the detailed of setting , please refer to section 6 boot code of ISP .

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Appendix C : Use ISP to program MCU

3.1 Select MTV type first , load the binary or intel hex file that you want to program into the MCU , and select “ AUTO”

item , then press “ RUN “ button , see fig3.1

Fig. 3.1

3.2 If user change the MTV type , it must load file again , or the buffer of load file will be cleared .

3.3 CRC ( cyclic redundancy check ) : the host can check CRC register’s result instead of reading every byte in flash . The message of Check MCU CRC OK means that the host verify OK for the progress of program , see Fig.3.2

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OSD Function Menu

A. When in Analog Input Mode

1. Main Menu

Press the [1] (Menu) button to enter the Main Menu: Press the [▲] button to highlight the previous item or the [▼] button to highlight the next item. Press the [1] (Menu) button to exit the Main Menu.

(1) Auto Image Adjust Page:

Press the [2] button to execute the auto image adjust function.

Press the [1] button to exit the page.

(2) Contrast/Brightness Page:

Press the [2] button to enter the contrast adjustment page.

Press the [1] button to exit the page.

1) Contrast Item

Press the [▲] button to increase the contrast. Press the [▼] button to decrease the contrast. Press the [2] button to enter the brightness adjustment page. Press the [1] button to exit the page.

2) Brightness Item

Press the [▲] button to increase the brightness. Press the [▼] button to decrease the brightness. Press the [2] button to enter the contrast adjustment page.

Press the [1] button to exit the page.

(3) Input Select Page:

Press the [2] button to switch to digital input mode.

(4) Audio Adjust Page:

Press the [▲] button to increase the volume. Press the [▼] button to decrease the volume. Press the [2] button to enable or disable mute function .

Press the [1] button to exit the page.

(5) Color Adjust Page:

Press the [2] button to enter the color adjustment page. Press the [1] button to exit the page. Press the [▲] button to highlight the previous item or the [▼] button to

highlight the next item.

1) sRGB Item

2) 9300K Item

3) 6500K Item

4) 5400K Item

Press the [2] button to select the currently highlighted item.

Press the [1] button to exit the currently highlighted item.

5) User Color Item Press the [2] button to enter the user color page. Press the [1] button to exit the page.

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Red, Green, Blue Options:

Press the [2] button to cycle among the colors. Press the [1] button to exit the page. Press the [▲] button to increase the selected color level.

Press the [▼] button to decrease the selected color level.

(6) Information Page:

Press the [2] button to enter the information page. Press the [1] button to exit the information page.

(7) Manual Image Adjust Page:

Press the [2] button to enter the manual image adjustment page. Press the [1] button to exit the page. Press the [▲] button to highlight the previous item or the [▼] button to

highlight the next item.

1) H./V. Position Item

Press the [2] button to enter the horizontal/vertical postion adjustment page. Press the [1] button to exit the page.

a) Horizontal Position:

Press the [2] button to enter the vertical position adjustment page.

Press the [1] button to exit the page.

Press the [▲] button to shift the image to the right.

Press the [▼] button to shift the image to the left.

b) Vertical Position:

Press the [2] button to return to the horizontal position adjustment page.

Press the [1] button to exit the page.

Press the [▲] button to shift the image upward.

Press the [▼] button to shift the image downward.

2) Horizontal Size Item

Press the [2] button to enter the horizontal size adjustment page. Press the [1] button to exit the page. Press the [▲] button to make the image wider. Press the [▼] button to make the image narrower.

3) Fine tune Item

Press the [2] button to enter the fine tuning page. Press the [1] button to exit the page. Press “[▲]” Button to adjust character position in one direction. Press “[▼]“Button to adjust character position in the other direction.

4) Sharpness Item

Press the [2] button to enter the sharpness adjustment page. Press the [1] button to exit the page. Press “[▲]” Button to increase image sharpness. Press “[▼]“ Button to decrease image sharpness.

(8) Setup Menu Page:

Press the [2] button to enter the setup menu page.

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Press the [1] button to exit the page. Press the [▲] button to highlight the previous item or the [▼] button to

highlight the next item.

1) Language Select Item

Press the [2] button to enter the language selection page.

Press the [1] button to exit the page. Press the [▲] button to highlight the previous item or the [▼] button to highlight the next item.

English, French… Option

Press the [2] button to select the language. Press the [1] button to exit the page.

2) Resolution Notice Item

Press the [2] button to enter the resolution notice page.

Press the [1] button to exit the page.

Enable, Disable Option

Press the [2] button to select the highlighted option. Press the [1] button to exit the page.

Press the [▲] button to highlight the previous option or the [▼] button to highlight the next option.

3) OSD Position Item

Press the [2] button to enter the OSD position adjustment page.

Press the [1] button to exit the page.

a) Horizontal Position Option

Press the [2] button to enter the vertical position adjustment page.

Press the [1] button to exit the page.

Press the [▲] button to shift the menu to the right.

Press the [▼] button to shift the menu to the left.

b) Vertical Position Option:

Press the [2] button to enter the horizontal position adjustment page.

Press the [1] button to exit the page.

Press the [▲] button to shift the menu upward.

Press the [▼] button to shift the menu downward.

4) OSD Time Out Item

Press the [2] button to enter the OSD time out adjustment page.

Press the [1] button to exit the page.

Press the [▲] button to increase the OSD time out.

Press the [▼] button to decrease the OSD time out.

5) OSD Background Item

Press the [2] button to enter the OSD background selection page.

Press the [1] button to exit the page.

Enable, Disable Option

Press the [▲] button to highlight the previous option or the [▼] button to highlight the next option.

Press the [2] button to select the highlighted option.

Press the [1] button to exit the page.

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(9) Memory Recall Page

Press the [2] button to execute the memory recall function. Press the [1] button to exit the page.

2. Other Menu:

This “shortcut” menu is directly accessible without bringing up the OSD.

(1) Contrast Dialog

Press the [▲] or [▼] button to enter the Contrast Dialog.

Press the [1] button to exit the Contrast Dialog.

Press the [2] button to enter the Brightness Dialog. Press the [▲] button to increase the contrast.

Press the [▼] button to decrease the contrast.

(2) Brightness Dialog

Press the [▲] or [▼] button to enter the Brightness Dialog.

Press the [1] button to exit the Brightness Dialog.

Press the [2] button to enter the Contrast Dialog. Press the [▲] button to increase the brightness.

Press the [▼] button to decrease the brightness.

(3) Analog/Digital Dialog

Press the [2] button to toggle between analog and digital modes.

B. When in Digital Input Mode

1. Main Menu

Press the [1] (Menu) button to enter the Main Menu: Press the [▲] button to highlight the previous item or the [▼] button to highlight the next item. Press the [1] (Menu) button to exit the Main Menu.

(1) Auto Image Adjust Page:

Press the [2] button to execute the auto image adjust function. Press the [1] button to exit the page.

(2) Contrast/Brightness Page:

Press the [2] button to enter the contrast adjustment page. Press the [1] button to exit the page.

1) Contrast Item

Press the [▲] button to increase the contrast. Press the [▼] button to decrease the contrast. Press the [2] button to enter the brightness adjustment page. Press the [1] button to exit the page.

2) Brightness Item

Press the [▲] button to increase the brightness. Press the [▼] button to decrease the brightness. Press the [2] button to enter the contrast adjustment page.

Press the [1] button to exit the page.

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(3) Input Select Page:

Press the [2] button to switch to analog input mode.

(4) Audio Adjust Page:

Press the [▲] button to increase the volume. Press the [▼] button to decrease the volume. Press the [2] button to enable or disable mute function .

Press the [1] button to exit the page.

(4) Color Adjust Page:

Press the [2] button to enter the color adjustment page. Press the [1] button to exit the page. Press the [▲] button to highlight the previous item or the [▼] button to

highlight the next item.

1) sRGB Item

2) 9300K Item

3) 6500K Item

4) 5400K Item

Press the [2] button to select the currently highlighted item.

Press the [1] button to exit the currently highlighted item.

5) User Color Item Press the [2] button to enter the user color page. Press the [1] button to exit the page.

Red, Green, Blue Options:

Press the [2] button to cycle among the colors. Press the [1] button to exit the page. Press the [▲] button to increase the selected color level.

Press the [▼] button to decrease the selected color level.

(5) Information Page:

Press the [2] button to enter the information page. Press the [1] button to exit the information page.

(6) Manual Image Adjust Page:

Press the [2] button to enter the manual image adjustment page. Press the [1] button to exit the page. Press the [▲] button to highlight the previous item or the [▼] button to

highlight the next item.

1) Sharpness Item

Press the [2] button to enter the sharpness adjustment page. Press the [1] button to exit the page. Press “[▲]” Button to increase image sharpness. Press “[▼]“ Button to decrease image sharpness.

(7) Setup Menu Page:

Press the [2] button to enter the setup menu page. Press the [1] button to exit the page. Press the [▲] button to highlight the previous item or the [▼] button to

highlight the next item.

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1) Language Select Item

Press the [2] button to enter the language selection page.

Press the [1] button to exit the page. Press the [▲] button to highlight the previous item or the [▼] button to highlight the next item.

English, French… Option

Press the [2] button to select the language. Press the [1] button to exit the page.

2) Resolution Notice Item

Press the [2] button to enter the resolution notice page.

Press the [1] button to exit the page.

Enable, Disable Option

Press the [2] button to select the highlighted option. Press the [1] button to exit the page.

Press the [▲] button to highlight the previous option or the [▼] button to highlight the next option.

3) OSD Position Item

Press the [2] button to enter the OSD position adjustment page.

Press the [1] button to exit the page.

a) Horizontal Position Option

Press the [2] button to enter the vertical position adjustment page.

Press the [1] button to exit the page.

Press the [▲] button to shift the menu to the right.

Press the [▼] button to shift the menu to the left.

b) Vertical Position Option:

Press the [2] button to enter the horizontal position adjustment page.

Press the [1] button to exit the page.

Press the [▲] button to shift the menu upward.

Press the [▼] button to shift the menu downward.

4) OSD Time Out Item

Press the [2] button to enter the OSD time out adjustment page.

Press the [1] button to exit the page.

Press the [▲] button to increase the OSD time out.

Press the [▼] button to decrease the OSD time out.

5) OSD Background Item

Press the [2] button to enter the OSD background selection page.

Press the [1] button to exit the page.

Enable, Disable Option

Press the [▲] button to highlight the previous option or the [▼] button to highlight the next option.

Press the [2] button to select the highlighted option.

Press the [1] button to exit the page.

(8) Memory Recall Page

Press the [2] button to execute the memory recall function.

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Press the [1] button to exit the page.

2. Other Menu:

This “shortcut” menu is directly accessible without bringing up the OSD.

(1) Contrast Dialog

Press the [▲] or [▼] button to enter the Contrast Dialog.

Press the [1] button to exit the Contrast Dialog.

Press the [2] button to enter the Brightness Dialog. Press the [▲] button to increase the contrast.

Press the [▼] button to decrease the contrast.

(2) Brightness Dialog

Press the [▲] or [▼] button to enter the Brightness Dialog.

Press the [1] button to exit the Brightness Dialog.

Press the [2] button to enter the Contrast Dialog. Press the [▲] button to increase the brightness.

Press the [▼] button to decrease the brightness.

(3) Analog/Digital Dialog

Press the [2] button to toggle between analog and digital modes.

C. Other Information

When the “No Signal” or “Out of Range” messages appear:

If no input signal is detected, the “No Signal” message will appear in the center of the screen. If the V-Sync signal rate is greater than than 85Hz or its resolution is greater than SXGA, the “Out of Range” message will appear in the center of the screen.

Activating Factory Mode and Burn Mode:

While the device is in standby, press the [2] button, then press the power button to enter Factory Mode. While Factory Mode is active, an additional menu page titled “Factory Menu” will be accessible. Press the [2] button to enter the Factory Menu page, then press the [2] button to enter Burn Mode.

When Installing a New Main Board

1. Enter Factory Mode.

2. Use a PC or chrom to send a 32-tone gray scale signal to the monitor.

3. Select “Auto Color”

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VA2012w series de-assembling procedure

1. Move the monitor our from carton 2. Put the monitor on desk & face down

3. Remove the I/O cover 4. Loose the screws & remove the stand

5. Separate the hook by tool (coin or screw-driver) 6. Remove the bezel & cover & AL-Foil

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7. Pull out the CCFL cables 8. Loose the shielding screw

9. Tear off the yellow tape 10. Tear off the yellow tape

11. Loose the Button/B screw 12. Move the Button board

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13. Remove the B/B cable 14. Remove speaker

15. Remove the shielding ass’y 16.Remove the AL-Foil

17. remove the mylar & rubber 18. Loose the bezel screw

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19. Loose the BKT screw L/R 20. Remove the PCBA

21. Remove the PCBAs 22. Remove the cables from PCBAs

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VA2012w series packing method

1. Sticker on LCD protection film 2. Put the monitor into the PE or EPE bags

3. Put on the end-cap left / right 4. Put the monitor into carton

5. Put all accessories into carton 6. Seal the monitor

handler

Users manual

Power cable

Base

VGA & DVI cable

Face-up

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6. Troubleshooting Flow Chart

No Power

Check CN6 pin 1,2

12V correct?

Check U4,U3 pin2

3.3V correct?

Check U5 pin 2

1.8V correct?

Change power

board

Change U3,U4

Change U5

Check Y1

frequency 12MHz

Change Y1

Change M/B

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No Audio

Q

p

No Audio Output

OK

Check input signal J1 OK?

OK

Check CN7 to speaker OK?

OK

Check CN6 pin 1,2 12V correct?

OK

NO

Check input source or change J1

Change speaker

Change power board module

Check U6 pin 6 Volume and

OK

Check U6

in12(mute),p11(stby)

OK

7

NO

Change Q7

Change U6

Change M/B

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Display color abnormal

Check panel cable?

OK

Check open/short

of IC2?

OK

Check panel power

supply of Q4

NO

Change panel cable

Repair open/short

Change Q4

OK

Check panel

NO

Change panel

OK

Change M/B

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ViewSonic Model Number: VS10859-1W

RECOMMENDED SPARE PARTS LIST (VA2012w-1)

7. Recommended Spare Parts List

Rev: 1a

Serial No. Prefix: PXC

Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Q'ty

Accessories:

1

Board Assembly:

2 Button board B-00004142 23W0VABB009 Button board 1 3 Inverter board B-00004143 AS022360D18 Inverter board 1 4 Main Board B-00004144 21W0VAMB002 Main board 1 5 Power board B-00004145 AS08B532009 Power board 1

Cabinets:

6 7 Base Assy C-00004147 38W0VABS010 base assy 1 8 Front Bezel Assy C-00004148

Cables:

9 Audio cable CB-00004149 DD0L0TPC007 Audio cable 1 10 Cable MB-BB CB-00004150 DDW0VABU007 Cable MB-BB 1 11 Cable MB-INV CB-00004151 DD0W0EIV008 Cable MB-INV 1 12 Cable MB-LCD CB-00004152 DD0L9VLC023 Cable MB-LCD 1 13 VGA cable CB-00002602 DDL7VDPC005 VGA cable 1

Documentation:

14

Electronic

15 20"W QDI TFT LCD panel E-00004154 AA20AL01004 LCD panel 1

Components:

16 Speaker assy E-00004155 DN0TE130F01 speaker assy 1

Hardware:

17 Screw F 3.0*4.0-I(MC) GP HW-00004156 MF30040IJB3 Screw 10 18 Screw M3.0*6, B(NI) GP M-SCW-0824-0813 19 Screw F4.0*14-I(BNI) GP HW-00004157 MF40140IJ29 Screw 7

Miscellaneous:

20

Packing Material:

21 EPE bags P-00004159 HAL0T002019 EPE bags 1 22 Carton P-00004160 HFW0VA03015 carton 1 23 End cap (L) P-00004161 24 End cap (R) P-00004162

Plastics:

25

Description

Power cable A-00003642 DM33T181004 Power cable 1

Back Cover Assy

User manual + CD wizard DC-00004153 HGW0VA01013 User manual 1

LCD film M-00004158 JXW0ZB01019 LCD FILM 1

Stand assy PL-00004163 26W0VASA016 Stand ASSY 1

C-00004146

25W0VALC015

24W0VALB018

MF30060BBJ6

HBW0VA01019 HBW0VA02015

back cover assy 1

front bezel ass'y 1

Screw 10

cushion 1 cushion 1

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Rev: 1a

ViewSonic Model Number: VS10859-1W

RECOMMENDED SPARE PARTS LIST (VA2012wb-1)

Serial No. Prefix: PVW

Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Q'ty

Accessories:

1

Board Assembly:

2 Button board B-00004142 23W0VABB009 Button board 1

3 Inverter board B-00004143 AS022360D18 Inverter board 1

4 Main Board B-00004144 21W0VAMB002 Main board 1

5 Power board B-00004145 AS08B532009 Power board 1

Cabinets:

6

7 base assy C-00004165 38W0VABS001 base assy 1

8 Front bezel assy C-00004166

Cables:

9 Audio cable CB-00004149 DD0L0TPC007 Audio cable 1 10 Cable MB-BB CB-00004150 DDW0VABU007 Cable MB-BB 1 11 Cable MB-INV CB-00004151 DD0W0EIV008 Cable MB-INV 1 12 Cable MB-LCD CB-00004152 DD0L9VLC023 Cable MB-LCD 1 13 VGA cable CB-00002602 DDL7VDPC005 VGA cable 1

Documentation:

14

Electronic

15 20"W QDI TFT LCD panel E-00004154 AA20AL01004 LCD panel 1

Components:

16 Speaker assy E-00004155 DN0TE130F01 speaker assy 1

Hardware:

17 Screw F 3.0*4.0-I(MC) GP HW-00004156 MF30040IJB3 Screw 10 18 Screw M3.0*6, B(NI) GP M-SCW-0824-0813 19 Screw F4.0*14-I(BNI) GP HW-00004157 MF40140IJ29 Screw 7

Miscellaneous:

20

Packing Material:

21 EPE bags P-00004159 HAL0T002019 EPE bags 1 22 Carton P-00004167 HFW0VA01012 carton 1 23 End cap (L) P-00004161 24 End cap (R) P-00004162

Plastics:

25

Description

Power cable A-00003642 DM33T181004 Power cable 1

back cover assy

User manual + CD wizard DC-00004153 HGW0VA01013 User manual 1

LCD film M-00004158 JXW0ZB01019 LCD FILM 1

Stand assy PL-00004168 26W0VASA008 Stand ASSY 1

C-00004164

25W0VALC007

24W0VALB000

MF30060BBJ6

HBW0VA01019 HBW0VA02015

back cover assy 1

front bezel ass'y 1

Screw 10

cushion 1 cushion 1

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Universal number#

CAP EC 1000U6.3V(+-20%,105C,8*11.5) GP

CONN DIP PHONE JACK 5P FR(H10)248C GP

PWR MODULE(DTA)EADP-64CF B,90~264V GP

INV MODULE(SEL)W0E(20V,I=6MA) GP

CABLE MB-INV(7P/8P,320MM)W0E GP

SPEAK ASSY L9T FG-TE130 1.5W*2 GP

LCD COVER W0VA(EAW0VA02,R3A)BKGP

STAND-BACK W0VA(EAW0VA05,R3A)BK GP

CONTACT-PLATE W0VA(FBW0VA02,REV3A)GP

CABLE STAND-HINGE(1P,150MM) GP

W0VA CHASSIS ASSY S/B GP

HINGE COVER W0VA(EBW0VA03,R3A)BK GP

RUBBER PLUG VESA (GAW0VA02,R3A)GRAY

CORE LABEL(HCL7V004,REV3A)

ID LABEL(S) W0VA(HCW0VA02,REV3A) GP

CARTON LABEL L7VC(HCL7V019,REV3B) GP

BOM LIST (VA2012w-1)

ViewSonic Model Number: VS10859-1W Rev: 1a

Serial No. Prefix: PXC

Item ViewSonic P/N Ref. P/N Description Location

1 #N/A 1LW0VAXVS99 W0VA LCD MONITOR(TWN)S/B GP 2 B-00004144 21W0VAMB002 W0VA M/B ASSY (NOVATEK 68563) GP 1 3 #N/A 31W0VASS008 W0VA M/B S/S ASSY (NOVATEK 68563) GP 1 4 #N/A DFDS15FR076 CONN D-SUB 15P 3R FR(P1.15,H12.55) GP CN1 1 5 #N/A DFDI24FR108 CONN DIP DVI 24P 3R FR(P1.905,H10.04) GP CN2 1 6 #N/A DFHD11MR001 CONN DIP HEADER 11P 1R MR(P2.0,H4.1) GP CN3 1 7 #N/A DFHD30MR267 CONN DIP HEADER 30P 2R MR(P2.0,H4.0) GP CN4 1 8 #N/A DFHD08FR102 CONN DIP HEADER 8P 2R FR(P2.54,H5.0) GP CN6 1

9 #N/A DFHD04MR132 CONN DIP HEADER 4P 1R MR(P2.0,H4.1) GP CN7 1 10 #N/A CC647T1MD05 CAP EC 47U 10V(+-20%,105C,5*11,2000H)GP C37 1 11 #N/A CC71004MD68 CAP EC 100U 25V(+-20%,105C,6*11,LESR) GP C68,C69,C70,C72 4 12 #N/A CC73303MD51 CAP EC 330U 16V(+-20%,105C,8*11,2KH)GP C24,C30,C46,C53,C6

13 #N/A CC810T1MD05 14 #N/A BG612000202 XTAL DIP 12MHZ(+-30PPM,HC-49/S TYPE) GP Y2 1 15 #N/A DFPJ05FR153 16 #N/A DC04725K011 CHOKE COIL 47UH(2.5A,+-10%,T07473 GP) GP L15 1 17 #N/A AL007496D29 IC(20P) UTC TDA7496LK(DIP) GP U6 1 18 B-00004142 23W0VABB009 W0VA BUTTON/B ASSY GP 1 19 B-00004145 AS08B532009 20 #N/A AS023360D18 21 C-00004148 24W0VALB018 W0VA LCD BEZEL ASSY (S/B) GP 1 22 #N/A 34W0VALB018 W0VA LCD BEZEL SUB ASSY (S/B) GP 1 23 #N/A 36W0VAPS006 W0VA PCB SHIELDING ASSY GP 1 24 #N/A FAW0VA02014 LCD BKT-L W0VA(FAW0VA02,REV3A)GP 1 25 #N/A FAW0VA03011 LCD BKT-R W0VA(FAW0VA03,REV3A)GP 1 26 #N/A FCW0E002016 POWER MYLAR W0E-A1(FAW0E002, REV3A)GP 1 27 #N/A FCL70007019 MYLAR SCALAR/LCD L70L-A(FCL70007,R3A)GP 1 28 #N/A FCM7T004014 AL FOIL M7T(FCM7T004,REV3A) GP 2 29 M-SCW-0824-6761 MM30030IBJ4 SCREW M3*3-I-NI GP 4 30 HW-00004156 MF30040IJB3 SCREW F3.0*4.0-I(MC) GP 10 31 M-SCW-0824-0813 MF30060BBJ6 SCREW F3.0*6-B(NI)GP 10 32 M-MS-0808-8986 MBLI1004018 IO NUT LI1(MBLI1004,REV3A) 4 33 M-SCW-0824-0814 MM30060BBJ3 SCREW M3.0*6,B(NI) GP 1 34 #N/A MS35080B456 SCREW F3.5*8-B(NI)(WASHER)GP 1 35 #N/A FCL7TA03011 AL-(50*25) L7TA(FCL7TA03,REV3B)GP 2 36 CB-00002525 DD0L9VLC015 CABLE MB-LCD(30P,140MM)L9V-5 GP 1 37 CB-00004152 DD0L9VLC023 CABLE LVDS(30P,140MM,LINKTEC,AU)L9VA GP 1 38 CB-00004150 DDW0VABU007 CABLE MB-BUTTON(11P/11P,240MM)W0VA GP 1 39 CB-00004151 DD0W0EIV008 40 E-00004155 DN0TE130F01 41 C-00004146 25W0VALC015 W0VA LCD COVER ASSY (S/B) GP 1 42 #N/A EAW0VA02022 43 M-MS-0808-9411 FBL70008014 LOCK METAL L70B(FBL70008,REV3A) GP 1 44 #N/A FBW0VA01019 HINGE-PLATE W0VA(FBW0VA01,REV3A)GP 1 45 PL-00004163 26W0VASA016 W0VA STAND ASSY (S/B) GP 1 46 #N/A EAW0VA03029 STAND FRONT W0VA(EAW0VA03,R3A)BK GP 1 47 #N/A EAW0VA05021 48 #N/A FAW0VA04017 HINGE ASSY W0VA(FAW0VA04,REV3A)GP 1 49 #N/A FBW0VA02015 50 HW-00004157 MF40140IJ29 SCREW F4.0*14-I(BNI) GP 7 51 #N/A DDL9TATH107 52 #N/A 27W0VACS014 53 #N/A EBW0VA03020 54 #N/A GAW0VA02014 55 #N/A ME40200PJ28 SCREW T4.0*20.0-P(BNI) GP 2 56 #N/A MM40100BL61 SCREW M4*10.0-B(BNI,NYLOK) GP 4 57 #N/A 2AW0VAPTQ01 W0VA PANEL DEPENDENT KIT ASSY(QDI) GP 1 58 E-00004154 AA20AL01004 LCD(TFT) 20" QD20AL01 REV.01 GP 1 59 #N/A AZW0VA0Q005 W0VA SW BIOS(NOVATEK,W/AUDIO)FOR QDI 1 60 #N/A 28W0VAPK011 W0VA PACKING ASSY (S/B) GP 1 61 C-00004147 38W0VABS010 W0VA BASE SUB ASSY (S/B) GP 1 62 CB-00002602 DDL7VDPC005 CABLE MB-VGA (15/15P,1.8M)L7VD GP 1 63 CB-00004149 DD0L0TPC007 CABLE AUDIO(ST,1.8M)BLACK L0T GP 1 64 CB-00003440 DD0L0TTH108 CABLE ASSY L0T MB-DVI(24P,REV2A) GP 1 65 P-00004161 HBW0VA01019 END CAP(L) W0VA(HBL7TA01,REV3A) GP 1 66 P-00004162 HBW0VA02015 END CAP(R) W0VA(HBL7TA02,REV3A) GP 1 67 M-LB-0813-0747 HCL7V004013 68 #N/A HCW0VA02016 69 M-LB-0813-0745 HCL7V002011 SERIAL LEBAL L7V(HCL7V002,REV3A) GP 1 70 M-LB-0813-1042 HCL7V019011

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J2 1

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Q'ty

10

1 1

1

1 1 1 4

1 1

1

Item ViewSonic P/N Ref. P/N Description Location

Universal number#

71 P-00004160 HFW0VA03015 CARTON(S) W0VA(HFW0VA03,REV3A) GP 1 72 DC-00004153 HGW0VA01013 CD+QSG W0VA(HGW0VA01,REV3A) GP 1 73 #N/A JXLM5003011 HANDLE LM5S(JXLM5003,REV 3B) GP 1 74 M-00004158 JXW0ZB01019 LCD FILM W0ZB-A1(JXW0ZB01,REV3A)GP 1 75 M-LB-0813-1043 HCL70021011 HI-POT LABEL L70L(HCL70021,REV3A) 1 76 #N/A HFW0VA02019 SPACE PLATE W0VA(HFW0VA02,REV3A) GP 0.042 77 P-00004159 HAL0T002019 PE BAG L0T(HAL0T002,REV3A)GP 1 78 A-00003642 DM33T181004 POWER CORD SP-305+IS-14 3P 1.8M(TWN)B GP 1

Q'ty

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83

CAP EC 1000U6.3V(+-20%,105C,8*11.5) GP

CONN DIP PHONE JACK 5P FR(H10)248C GP

PWR MODULE(DTA)EADP-64CF B,90~264V GP

INV MODULE(SEL)W0E(20V,I=6MA) GP

CABLE MB-INV(7P/8P,320MM)W0E GP

SPEAK ASSY L9T FG-TE130 1.5W*2 GP

LCD COVER W0VA(EAW0VA02,REV3A)GP

STAND-BACK W0VA(EAW0VA05,REV4A)GP

CONTACT-PLATE W0VA(FBW0VA02,REV3A)GP

CABLE STAND-HINGE(1P,150MM) GP

SCREW F4.0*8-I(NI)GP

W0VA CHASSIS ASSY GP

HINGE COVER W0VA(EBW0VA03,REV3A)GP

END CAP(R) W0VA(HBL7TA02,REV3A) GP

CORE LABEL(HCL7V004,REV3A)

BOM LIST (VA2012wb-1)

ViewSonic Model Number: VS10859-1W Rev: 1a

Serial No. Prefix: PVW

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty

1 #N/A 1LW0VAXVS05 W0VA LCD MONITOR(USA) GP 2 B-00004144 21W0VAMB002 W0VA M/B ASSY (NOVATEK 68563) GP 1 3 #N/A 31W0VASS008 W0VA M/B S/S ASSY (NOVATEK 68563) GP 1 4 #N/A DFDS15FR076 CONN D-SUB 15P 3R FR(P1.15,H12.55) GP CN1 1 5 #N/A DFDI24FR108 CONN DIP DVI 24P 3R FR(P1.905,H10.04) GP CN2 1 6 #N/A DFHD11MR001 CONN DIP HEADER 11P 1R MR(P2.0,H4.1) GP CN3 1 7 #N/A DFHD30MR267 CONN DIP HEADER 30P 2R MR(P2.0,H4.0) GP CN4 1 8 #N/A DFHD08FR102 CONN DIP HEADER 8P 2R FR(P2.54,H5.0) GP CN6 1

9 #N/A DFHD04MR132 CONN DIP HEADER 4P 1R MR(P2.0,H4.1) GP CN7 1 10 #N/A CC647T1MD05 CAP EC 47U 10V(+-20%,105C,5*11,2000H)GP C37 1 11 #N/A CC71004MD68 CAP EC 100U 25V(+-20%,105C,6*11,LESR) GP C68,C69,C70,C72 4 12 #N/A CC73303MD51 CAP EC 330U 16V(+-20%,105C,8*11,2KH)GP C24,C30,C46,C53,C6

6,C67,C74,C76,C80,C

10

13 #N/A CC810T1MD05 14 #N/A BG612000202 XTAL DIP 12MHZ(+-30PPM,HC-49/S TYPE) GP Y2 1 15 #N/A DFPJ05FR153 16 #N/A DC04725K011 CHOKE COIL 47UH(2.5A,+-10%,T07473 GP) GP L15 1 17 #N/A AL007496D29 IC(20P) UTC TDA7496LK(DIP) GP U6 1 18 B-00004142 23W0VABB009 W0VA BUTTON/B ASSY GP 1 19 B-00004145 AS08B532009 20 #N/A AS023360D18 21 C-00004166 24W0VALB000 W0VA LCD BEZEL ASSY GP 1 22 #N/A 34W0VALB000 W0VA LCD BEZEL SUB ASSY GP 1 23 #N/A 36W0VAPS006 W0VA PCB SHIELDING ASSY GP 1 24 #N/A FAW0VA02014 LCD BKT-L W0VA(FAW0VA02,REV3A)GP 1 25 #N/A FAW0VA03011 LCD BKT-R W0VA(FAW0VA03,REV3A)GP 1 26 #N/A FCW0E002016 POWER MYLAR W0E-A1(FAW0E002, REV3A)GP 1 27 #N/A FCL70007019 MYLAR SCALAR/LCD L70L-A(FCL70007,R3A)GP 1 28 #N/A FCM7T004014 AL FOIL M7T(FCM7T004,REV3A) GP 2 29 M-SCW-0824-6761 MM30030IBJ4 SCREW M3*3-I-NI GP 4 30 HW-00004156 MF30040IJB3 SCREW F3.0*4.0-I(MC) GP 10 31 M-SCW-0824-0813 MF30060BBJ6 SCREW F3.0*6-B(NI)GP 10 32 M-MS-0808-8986 MBLI1004018 IO NUT LI1(MBLI1004,REV3A) 4 33 M-SCW-0824-0814 MM30060BBJ3 SCREW M3.0*6,B(NI) GP 1 34 #N/A MS35080B456 SCREW F3.5*8-B(NI)(WASHER)GP 1 35 #N/A FCL7TA03011 AL-(50*25) L7TA(FCL7TA03,REV3B)GP 2 36 CB-00002525 DD0L9VLC015 CABLE MB-LCD(30P,140MM)L9V-5 GP 1 37 CB-00004152 DD0L9VLC023 CABLE LVDS(30P,140MM,LINKTEC,AU)L9VA GP 1 38 CB-00004150 DDW0VABU007 CABLE MB-BUTTON(11P/11P,240MM)W0VA GP 1 39 CB-00004151 DD0W0EIV008 40 E-00004155 DN0TE130F01 41 C-00004164 25W0VALC007 W0VA LCD COVER ASSY GP 1 42 #N/A EAW0VA02014 43 M-MS-0808-9411 FBL70008014 LOCK METAL L70B(FBL70008,REV3A) GP 1 44 #N/A FBW0VA01019 HINGE-PLATE W0VA(FBW0VA01,REV3A)GP 1 45 PL-00004168 26W0VASA008 W0VA STAND ASSY GP 1 46 #N/A EAW0VA03011 STAND-FRONT W0VA(EAW0VA03,REV3A)GP 1 47 #N/A EAW0VA05013 48 #N/A FAW0VA04017 HINGE ASSY W0VA(FAW0VA04,REV3A)GP 1 49 #N/A FBW0VA02015 50 HW-00004157 MF40140IJ29 SCREW F4.0*14-I(BNI) GP 7 51 #N/A DDL9TATH107 52 M-SCW-0824-6895 MF40080IBJ1 53 #N/A 27W0VACS006 54 #N/A EBW0VA03011 55 #N/A GAW0VA02014 RUBBER PLUG VESA (GAW0VA02,R3A)GRAY GP 4 56 #N/A ME40200PJ28 SCREW T4.0*20.0-P(BNI) GP 2 57 #N/A MM40100BL61 SCREW M4*10.0-B(BNI,NYLOK) GP 4 58 #N/A 2AW0VAPTQ01 W0VA PANEL DEPENDENT KIT ASSY(QDI) GP 1 59 E-00004154 AA20AL01004 LCD(TFT) 20" QD20AL01 REV.01 GP 1 60 #N/A AZW0VA0Q005 W0VA SW BIOS(NOVATEK,W/AUDIO)FOR QDI 1 61 #N/A 28W0VAPK003 W0VA PACKING ASSY GP 1 62 C-00004165 38W0VABS001 W0VA BASE SUB ASSY GP 1 63 CB-00002602 DDL7VDPC005 CABLE MB-VGA (15/15P,1.8M)L7VD GP 1 64 CB-00004149 DD0L0TPC007 CABLE AUDIO(ST,1.8M)BLACK L0T GP 1 65 CB-00003440 DD0L0TTH108 CABLE ASSY L0T MB-DVI(24P,REV2A) GP 1 66 P-00004161 HBW0VA01019 END CAP(L) W0VA(HBL7TA01,REV3A) GP 1 67 P-00004162 HBW0VA02015 68 M-LB-0813-0747 HCL7V004013 69 #N/A HCW0VA01010 ID LABEL W0VA(HCW0VA01,REV3A) GP 1

C61 1

J2 1

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1 1

1

1 1 1 1

1 1

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty

SERIAL LEBAL L7V(HCL7V002,REV3A) GP

70 M-LB-0813-0745 HCL7V002011 71 M-LB-0813-1042 HCL7V019011 CARTON LABEL L7VC(HCL7V019,REV3B) GP 1 72 P-00004167 HFW0VA01012 CARTON W0VA(HFW0VA01,REV3A) GP 1 73 DC-00004153 HGW0VA01013 CD+QSG W0VA(HGW0VA01,REV3A) GP 1 74 #N/A JXLM5003011 HANDLE LM5S(JXLM5003,REV 3B) GP 1 75 M-00004158 JXW0ZB01019 LCD FILM W0ZB-A1(JXW0ZB01,REV3A)GP 1 76 M-LB-0813-1043 HCL70021011 HI-POT LABEL L70L(HCL70021,REV3A) 1 77 #N/A HFW0VA02019 SPACE PLATE W0VA(HFW0VA02,REV3A) GP 0.04 78 P-00004159 HAL0T002019 PE BAG L0T(HAL0T002,REV3A)GP 1 79 #N/A HDL7VC01019 SERVICR PAPER L7VC(HDL7VC01,REV3A) GP 1 80 DC-00003536 HCL9V009011 HG LABEL L9VD(HCL9V009,REV3A) 1 81 A-PC-0106-0224 DM333181G97 POWER CORD 3P 1.8M(USA)V04VS350012180 GP 1

1

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8. Exploded Diagram and Exploded Parts List

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ViewSonic Corporation

Model

Title Date Rev:

Rev: 1a

EXPLODED PARTS LIST (VA2012w-1)

ViewSonic Model Number: VS10859-1W

Serial No. Prefix: PXC

Item ViewSonic P/N Ref. P/N Description Q'ty

1 B-00004144 21W0VAMB002 W0VA M/B ASSY (NOVATEK 68563) GP 1 2 B-00004145 AS08B532009 PWR MODULE(DTA)EADP-64CF B,90~264V GP 1 3 #N/A AS023360D18 INV MODULE(SEL)W0E(20V,I=6MA) GP 1 4 B-00004142 23W0VABB009 W0VA BUTTON/B ASSY GP 1 5 #N/A EAW0VA01026 LCD BEZEL W0VA SILVER GP 1 6 #N/A EBW0VA01019 FUNCTION BUTTON W0VA GP 1 7 #N/A EBW0VA02015 LENS W0VA(EBW0VA02,REV3A)GP 1 8 M-MS-0808-9244 FEL7V004015 BIRD LOGO-10MM L7VC 1

9 M-MS-0808-9243 FEL7V003019 LOGO FRONT-VSC-38MM L7VC 1 10 #N/A FCW0VA01010 SHIELDING MYLAR W0VA GP 1 11 #N/A FAW0VA01018 SHIELDING W0VA GP 1 12 #N/A FAW0VA02014 LCD BKT-L W0VA GP 1 13 #N/A FAW0VA03011 LCD BKT-R W0VA GP 1 14 #N/A FCW0E002016 POWER MYLAR W0E-A1 GP 1 15 #N/A FCL70007019 MYLAR SCALAR/LCD L70L-A GP 1 16 #N/A FCM7T004014 AL FOIL M7T GP 2 17 M-SCW-0824-6761 MM30030IBJ4 SCREW M3*3-I-NI GP 4 18 HW-00004156 MF30040IJB3 SCREW F3.0*4.0-I(MC) GP 10 19 M-SCW-0824-0813 MF30060BBJ6 SCREW F3.0*6-B(NI)GP 10 20 M-MS-0808-8986 MBLI1004018 IO NUT LI1 4 21 M-SCW-0824-0814 MM30060BBJ3 SCREW M3.0*6,B(NI) GP 1 22 #N/A MS35080B456 SCREW F3.5*8-B(NI)(WASHER)GP 1 23 #N/A FCL7TA03011 AL-(50*25) L7TA GP 2 24 CB-00004152 DD0L9VLC023 CABLE LVDS(30P,140MM,LINKTEC,AU)L9VA GP 1 25 CB-00004150 DDW0VABU007 CABLE MB-BUTTON(11P/11P,240MM)W0VA GP 1 26 CB-00004151 DD0W0EIV008 CABLE MB-INV(7P/8P,320MM)W0E GP 1 27 E-00004155 DN0TE130F01 SPEAK ASSY L9T FG-TE130 1.5W*2 GP 1 28 #N/A EAW0VA02022 LCD COVER W0VA BKGP 1 29 M-MS-0808-9411 FBL70008014 LOCK METAL L70B GP 1 30 #N/A FBW0VA01019 HINGE-PLATE W0VA1 GP 1 31 #N/A EAW0VA03029 STAND FRONT W0VA BK GP 1 32 #N/A EAW0VA05021 STAND-BACK W0VA BK GP 1 33 #N/A FAW0VA04017 HINGE ASSY W0VA GP 1 34 #N/A FBW0VA02015 CONTACT-PLATE W0VA GP 1 35 HW-00004157 MF40140IJ29 SCREW F4.0*14-I(BNI) GP 7 36 #N/A DDL9TATH107 CABLE STAND-HINGE(1P,150MM) GP 1 37 M-SCW-0824-6895 MF40080IBJ1 SCREW F4.0*8-I(NI)GP 1 38 #N/A EBW0VA03020 HINGE COVER W0VA BK GP 1 39 #N/A GAW0VA02014 RUBBER PLUG VESA GRAY GP 4 40 #N/A ME40200PJ28 SCREW T4.0*20.0-P(BNI) GP 2 41 #N/A MM40100BL61 SCREW M4*10.0-B(BNI,NYLOK) GP 4 42 #N/A 2AW0VAPTQ01 W0VA PANEL DEPENDENT KIT ASSY(QDI) GP 1 43 #N/A EAW0VA04025 BASE W0VA BK GP 1 44 #N/A FBW0VA03011 BASE-PLATE W0VA GP 1 45 #N/A GAW0VA03011 RUBBER FOOT-C W0VA GP 2 46 #N/A GAW0VA01018 RUBBER FOOT W0VA GP 2 47 M-00004158 JXW0ZB01019 LCD FILM W0ZB-A1 GP 1 48 PL-00001806 GAL5T001016 RUBBER-HOLDER L5TL-E 1 49 #N/A HCW0VA02016 ID LABEL(S) W0VA GP 1 50 M-LB-0813-0745 HCL7V002011 SERIAL LEBAL L7V GP 1

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Rev: 1a

EXPLODED PARTS LIST (VA2012wb-1)

ViewSonic Model Number: VS10859-1W

Serial No. Prefix: PVW

Item ViewSonic P/N Ref. P/N Description Q'ty

1 B-00004144 21W0VAMB002 W0VA M/B ASSY (NOVATEK 68563) GP 1 2 B-00004145 AS08B532009 PWR MODULE(DTA)EADP-64CF B,90~264V GP 1 3 #N/A AS023360D18 INV MODULE(SEL)W0E(20V,I=6MA) GP 1 4 B-00004142 23W0VABB009 W0VA BUTTON/B ASSY GP 1 5 #N/A EAW0VA01018 LCD BEZEL 1 6 #N/A EBW0VA01019 FUNCTION BUTTON W0VA GP 1 7 #N/A EBW0VA02015 LENS W0VA GP 1 8 M-MS-0808-9244 FEL7V004015 BIRD LOGO-10MM L7VC 1

9 M-MS-0808-9243 FEL7V003019 LOGO FRONT-VSC-38MM L7VC 1 10 #N/A FCW0VA01010 SHIELDING MYLAR W0VA GP 1 11 #N/A FAW0VA01018 SHIELDING W0VA GP 1 12 #N/A FAW0VA02014 LCD BKT-L W0VA GP 1 13 #N/A FAW0VA03011 LCD BKT-R W0VA GP 1 14 #N/A FCW0E002016 POWER MYLAR W0E-A1 GP 1 15 #N/A FCL70007019 MYLAR SCALAR/LCD L70L-A GP 1 16 #N/A FCM7T004014 AL FOIL M7T GP 2 17 M-SCW-0824-6761 MM30030IBJ4 SCREW M3*3-I-NI GP 4 18 HW-00004156 MF30040IJB3 SCREW F3.0*4.0-I(MC) GP 10 19 M-SCW-0824-0813 MF30060BBJ6 SCREW F3.0*6-B(NI)GP 10 20 M-MS-0808-8986 MBLI1004018 IO NUT LI1(MBLI1004,REV3A) 4 21 M-SCW-0824-0814 MM30060BBJ3 SCREW M3.0*6,B(NI) GP 1 22 #N/A MS35080B456 SCREW F3.5*8-B(NI)(WASHER)GP 1 23 #N/A FCL7TA03011 AL-(50*25) L7TA GP 2 24 CB-00004152 DD0L9VLC023 CABLE LVDS(30P,140MM,LINKTEC,AU)L9VA GP 1 25 CB-00004150 DDW0VABU007 CABLE MB-BUTTON(11P/11P,240MM)W0VA GP 1 26 CB-00004151 DD0W0EIV008 CABLE MB-INV(7P/8P,320MM)W0E GP 1 27 E-00004155 DN0TE130F01 SPEAK ASSY L9T FG-TE130 1.5W*2 GP 1 28 #N/A EAW0VA02014 LCD COVER W0VA GP 1 29 M-MS-0808-9411 FBL70008014 LOCK METAL L70B GP 1 30 #N/A FBW0VA01019 HINGE-PLATE W0VA(FBW0VA01,REV3A)GP 1 31 #N/A EAW0VA03011 STAND-FRONT W0VA GP 1 32 #N/A EAW0VA05013 STAND-BACK W0VA GP 1 33 #N/A FAW0VA04017 HINGE ASSY W0VA GP 1 34 #N/A FBW0VA02015 CONTACT-PLATE W0VA GP 1 35 HW-00004157 MF40140IJ29 SCREW F4.0*14-I(BNI) GP 7 36 #N/A DDL9TATH107 CABLE STAND-HINGE(1P,150MM) GP 1 37 M-SCW-0824-6895 MF40080IBJ1 SCREW F4.0*8-I(NI)GP 1 38 #N/A EBW0VA03011 HINGE COVER W0VA(EBW0VA03,REV3A)GP 1 39 #N/A GAW0VA02014 RUBBER PLUG VESA (GAW0VA02,R3A)GRAY GP 4 40 #N/A ME40200PJ28 SCREW T4.0*20.0-P(BNI) GP 2 41 #N/A MM40100BL61 SCREW M4*10.0-B(BNI,NYLOK) GP 4 42 #N/A 2AW0VAPTQ01 W0VA PANEL DEPENDENT KIT ASSY(QDI) GP 1 43 #N/A EAW0VA04017 BASE W0VA GP 1 44 #N/A FBW0VA03011 BASE-PLATE W0VA 1 45 #N/A GAW0VA03011 RUBBER FOOT-C W0VA GP 2 46 #N/A GAW0VA01018 RUBBER FOOT W0VA GP 2 47 M-00004158 JXW0ZB01019 LCD FILM W0ZB-A1 GP 1 48 PL-00001806 GAL5T001016 RUBBER-HOLDER L5TL-E(GAL5T001,REV3B) 1 49 M-LB-0813-0745 HCL7V002011 SERIAL LEBAL L7V GP 1 50 #N/A HCW0VA01010 ID LABEL W0VA GP 1

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Packing for Shipping

Rev: 1a

Serial No. Prefix: PXC

PACKING PART LIST (VA2012w-1)

Rev: 1a

Serial No. Prefix: PVW

PACKING PART LIST (VA2012wb-1)

ViewSonic Model Number: VS10859-1W

Item ViewSonic P/N Ref. P/N Location Q'ty

1 #N/A 1LW0VAXVS99 VA2012w monitor 1 2 P-00004161 HBW0VA01019 END CAP (L) 1 3 P-00004162 HBW0VA02015 END CAP (R) 1 4 DC-00004153 HGW0VA01013 USER'S MANUAL & CD 1 5 A-00003642 DM33T181004 POWER CORD 3P 1.8M 1 6 P-00004160 HFW0VA03015 CARTON 1 7 #N/A HCL7VC019011 CARTON LABEL 1 8 P-00004159 HAL0T002019 PE BAG 1

9 CB-00002602 DDL7VDPC005 VGA CABLE 1 10 CB-00004149 DD0L0TPC007 AUDIO CABLE 1 11 C-00004147 38W0VABS010 Base assy 1

ViewSonic Model Number: VS10859-1W

Item ViewSonic P/N Ref. P/N Location Q'ty

1 #N/A 1LW0VAXVS05 VA2012wb monitor 1 2 P-00004161 HBW0VA01019 END CAP (L) 1 3 P-00004162 HBW0VA02015 END CAP (R) 1 4 DC-00004153 HGW0VA01013 USER'S MANUAL & CD 1 5 A-PC-0106-0224 DM333181G97 POWER CORD 3P 1.8M 1 6 P-00004167 HFW0VA01012 CARTON 1 7 #N/A HCL7VC019011 CARTON LABEL 1 8 P-00004159 HAL0T002019 PE BAG 1

9 CB-00002602 DDL7VDPC005 VGA CABLE 1 10 CB-00004149 DD0L0TPC007 AUDIO CABLE 1 11 C-00004165 38W0VABS001 Base assy 1

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9. Block Diagram

LCD PANEL

LCD_VDD

+12V

TDA7496L

+3.3V

CVDD1V8(+1.8V)

MCU-VDD(+3.3V)

+3.3V +1.8V

SCALAR

NT68563HF

SDA

CSL

+5V

REFCLKI

RSTN

X'TAL

(12MHz)

MCU-VDD(+3.3V)

VGA-SDA

VGA-SCL

SI9435

LCD-ON

DVI-SDA

DVI-SCL

Mcu

NT 68F633L

SDA

MUTE

STANDBY

CSL

VOLUME

PHONE JACK

BL-ON

BL-BRIGHT

+5V

STEP DOWN CONVERTER

+12V

POWER

+20V ON/OFF ADJ

INVERTER HV

INVERTER BOARD

VGA-SDA

VGA

VGA-SCL

I/P

DVI

DVI-SDA

I/P

DVI-SCL

MCU-VDD(+3.3V)

EEPROM

24LC16

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Key Pad

AC 90-264V

-

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10. Schematic Diagrams

ADC_VAA

2

1

GND_A

D1

2

3

R1 75/6

GND_A

3

GND_A

3

R6 75/6

GND_A

BAV99/NC

1

D2 BAV99/NC

R4 75/6

1

D5 BAV99/NC

CH201209T-300

GND_A

CH201209T-300

GND_A

CH201209T-300

B1

R122 100/6/NC

MCU-VDD

R2

4.7K/6

VGA-SCL4

VGA-SDA4

2

1

GND_A

MCU-VDD

D3 ZD5V6/NC

R5

4.7K/6

VS HS

R121 100/6/NC

D4 ZD5V6/NC

100/6R120

Tx4

2

1

GND_A

RX

CN1 D-SUB-Female

15

14

13

12

11

D-SUB1

DB15

--------------------------

VGA-5V

17

G

10

5

9

4

8

B1

3

7

G1

2

6

R1

1

16

G

GND_A

BAV99

1K/6R3

100/6R119

VGA-DET 4 Rx 4

3

ADC_VAA

G1

ADC_VAA

R1

BEAD 30/6L1

0/6L2

BEAD 30/6L3

0/6L4

BEAD 30/6L5

0/6L6

BI1 3

BI1- 3

GI1 3

GI1- 3

RI1 3

RI1- 3

1 R 2 G 3 B 4 NC 5 RETURN 6 RGND 7 GGND 8 BGND 9 +5V 10 SYNC.RETURN 11 NC 12 SDA 13 Hs 14 Vs 15 SCL

VS

R106

2.2K/6/NC

GND_A

HS

R107 0/6

R108

2.2K/6/NC

GND_A

2

1

GND_A

2

1

GND_A

D6 ZD5V6

D7 ZD5V6

C1 1000pF/6/NC

GND_A

C3 22pF/6/NC

GND_A

VS

GND_A

IC1

1

D0

2

Q0

3

D1

4

Q1

5

D2

6

Q2

7

GND Q3

74LVC14

VCC

14

13

D5

12

Q5

11

D4

10

Q4

9

D3

8

HS

R8 100/6/NC

R7

100/6/NC

C2

0.1uF/6

GND_A

ADC_VAA

VSIN 3

HSIN 3

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ViewSonic Corporation

Model

Title Date Rev:

ADC Input

CN2 DVI-I-Female

31

SHELL1

AGND

A VS

TX2+

TX2/4 Shld

TX4+

DDC CLK

DDC DATA

TX1+

TX1/3 Shld

TX3+

GND

HP Detect

TX0+

TX0/5 Shld

TX5+

TXC Shld

TXC+

32

GND_A GND_A

TXC-

SHELL2

AR

AG

AB

AHS

NC

TX2-

TX4-

TX1-

TX3-

+5V

TX0-

TX5-

C1

C2

C3

C4

C5

C6

8

1

2

3

4

5

6

7

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

ADC_VAA ADC_VAA ADC_VAA ADC_VAA

2

DVI-5V

1K/6R16

1

D8 BAV99/NC

3

D14

3

BAV99/NC

2

3

DVI-SCL DVI-SDA

1K/6R15

D15

3

BAV99/NC

1

D9 BAV99/NC

GND_A GND_A GND_A GND_A

2

1

D10 BAV99/NC

3

D16

3

BAV99/NC

2

1

D11 BAV99/NC

3

D17

3

BAV99/NC

DVI-DET 4

MCU-VDD

10/6R9

10/6R11

10/6R13

10/6R14

10/6R17

10/6R18

10/6R19

10/6R20

RX2- 3 RX2+ 3

RX1- 3 RX1+ 3

RX0- 3 RX0+ 3

RXC+ 3 RXC- 3

R10

4.7K/6

2

D12 ZD5V6/NC

1

GND_A

MCU-VDD

R12

4.7K/6

DVI-SCL 4 DVI-SDA 4

2

D13 ZD5V6/NC

1

GND_A

DVI Input

1

2

ADC_VAA ADC_VAA ADC_VAA ADC_VAAGND_A GND_AGND_AGND_A

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1

2

1

2

BAV99

ViewSonic Corporation

Model

Title Date Rev:

DVI Input

VGA_3V3

CVDD1V8

VGA_3V3

RX2+2

RX2-2

RX1+2

RX1-2

RX0+2

RX0-2

RXC+2

RXC-2

HSIN1 VSIN1

BI11 BI1-1

GI11 GI1-1

RI11 RI1-1

R23 75/6

R24 100/6

R25 390/6 1%

R26 75/6 R27 100/6

R28 75/6

R29 100/6

SDA4

RSTn4

IRQn4

REFCLKI4

BYPASS-VS4

BYPASS-HS4

R22 390/6 1%

GND_A

TP1 YUV-CLK/NC

SCL4

GND_A

1

SCL SDA RSTn IRQn

REFCLKI

BYPASS-VS BYPASS-HS

GND_A

0.047uF/6C12

0.047uF/6C16

0.047uF/6C17

0.047uF/6C18

0.047uF/6C19

0.047uF/6C20

0.047uF/6C21

0.1uF/6C22

0.1uF/6C23

AD0 AD1

RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXC-

VREF

14

REXT

2

RX2+

3

RX2-

5

RX1+

6

RX1-

8

RX0+

9

RX0-

11

RXC+

12

RXC-

38

VREF

39

HSYNCI1

40

VSYNCI1/TOUTP

20

BIN1+

21

BIN1-

22

SOGI1

23

GIN1+

24

GIN1-

25

RIN1+

26

RIN1-

19

BVMID

27

RVMID

41

HSYNCI0/GPO5

42

VSYNCI0/GPO4

30

BIN0+/Y0

31

BIN0-/Y1

32

SOGI0/Y2

33

GIN0+/Y3

34

GIN0-/Y4

35

RIN0+/Y5

36

RIN0-/Y6

37

ADC_GND/Y7

51

YUV_CLK

125

SCL

126

SDA

127

RSTn

128

IRQn

45

OSCI

44

OSCO

120

IN_VSO/GPO4

121

IN_HSO/GPO5

118

AD0/GPO2

119

AD1/GPO3

86

53

CVDD

122

CVDD

L7 B0805/1K

CGND

52

ADC_VAA DVDD

DPLL

46

28

18

ADC_VAA

DPLL_VDD

ADC_VAA

IC2

NT68563HF

DGND

107

DPLL_GND

ADC_GNDA

43

29

D/CGND

123

87

63

4

13

AVCC

ADC_GNDA

17

AVCC

L8 B0603/30

PVCC

15

PVCC

AGND

7

1

54

AGND

10

98

DVDD

PGND

16

116

72

DVDD

GPO0/DISP_HS

NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC

T0M

T0P

T1M

T1P

T2M

T2P

TCLK1M

TCLK1P

T3M

SPB/DISP_VS

SPA/DISP_DE

REFCKO/GPO6

GPO10/PWM0

T3P

T4M

T4P

T5M

T5P

T6M

T6P

TCLK2M

TCLK2P

T7M

T7P

NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC

NC GPO1 GPO7

GPO8

GPO9/PWM1

115

114

113

112

111

110

109

108

106

105

104

103

102

101

100

99

97

96

95

94

93

92

91

90

89

88

85

84

83

82

81

80

79

78

77

76

75

74

73

71

70

69

68

67

66

65

64

62

61

60

59

58

57

56

55

117

124

50

49

48

47

GND_A

T0M 5 T0P 5 T1M 5 T1P 5 T2M 5 T2P 5 TCLK1M 5 TCLK1P 5

T3M 5 T3P 5

T4M 5 T4P 5

T5M 5 T5P 5 T6M 5 T6P 5 TCLK2M 5 TCLK2P 5 T7M 5 T7P 5

GND_A

C7

0.1uF/6

C8

PVCC

ADC_VAA

0.1uF/6

C4

OPTION

DVDD

0.1uF/6

C9

GND_A

0.1uF/6

C25

R21

1K/6

0.1uF/6

C10

CVDD1V8

0.1uF/6

C26

1uF/8

C31

D18

TL431CUS

0.1uF/6

C27

GND_A

120pF/6

C32

GND_A

2

1

3

GND_A

DPLL

VGA_3V3

0.1uF/6

C33

VREF

C13

GND_A

C34

0.1uF/6

C5

ADC_VAA

0.1uF/6

C29

GND_A

0.1uF/6

10uF/6.3V/Y5V/1206

C6

0.1uF/6

C14

330uF/16V

10uF/6.3V/Y5V/1206

C30

ViewSonic Corporation

GND_A

Model

Title

NT68563

ViewSonic Corporation Confidential

67

-

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Date Rev:

MCU-VDD

R113

10K/6

MCU-VDD

R115

10K/6

MCU-VDD

R117

10K/6

MCU-VDD

C36 47uF/16V

R37 1M/6

Y1 12MHZ

C39 22pF/6

GND_A GND_A

R45 0/6

+5V

BL-PWM

C37 0.1uF/6

R49 1K/6

R51 4.7K/6

GND_A GND_A

BYPASS-VS3

REFCLKI3

BL-ON6

R34 100K/6

MCU-VDD

+

GND_A

C40 22pF/6

C41 22pF/6

C35

Rx1 Tx1

IRQn3

BL-BRIGHT 6

R31 4.7K/6

0.1uF/6

SCL SDA

5V-DETECT RIGHT

LEFT BL-PWM VOL-PWM PANEL_SEL2 PANEL_SEL1 STANDBY

+5V

R32 4.7K/6

MUTE

PANEL_SEL3

IC3

41

PC2/SOGI

42

PC1*

43

PC0*

10

RSTB

44

VDD

12

PD6

22

GND

20

OSCO

21

OSCI

11

P30/RXD

13

P31/TXD

16

P34/T0

17

P35/T1

15

PB3/ADC3/INTE1

14

PB2/ADC2/INTE0

24

PB1/ADC1

23

PB0/ADC0

9

PA7*/PWM9*

8

PA6*/PWM8*

7

PA5*/PWM7*

6

PA4*/PWM6*

5

PA3/PWM5 PA2/PWM4

68F633L

68F633-PLCC44

MCU-VDD

NC2 NC1 PC3 PC4 PC5 PE1 PE0 PC6 PC7 PD0 PD1 PD2 PD3 PD4 PD5

PA0/PWM2

PB4*/SCL0*

PB5*/SDA0*

PB6*/SCL1*

PB7*/SDA1*

PA1/PWM3

R50 4.7K/6

33

32

40

39

38

19

18

37

36

1

35

34

31

30

29

2

25

26

27

28

3

4

+5V

MUTE 7

MUTE_KEY

PWR MENU

WP DOWN

SEL UP

R40 100/6

R41 100/6

R42 100/6

R43 100/6

LEDG1 LEDA1

RSTn 3 BYPASS-HS 3

LCD-ON 5

DVI-DET 2 VGA-DET 1

STANDBY 7

DVI-SCL 2 DVI-SDA 2 VGA-SCL 1 VGA-SDA 1

R114

PANEL_SEL1 PANEL_SEL2

10K/6/NC

GND_A

R116

10K/6/NC

GND_A

5V-DETECT

MCU-VDD

2K/6

SCL SDA

+5V

R36

10K/6

15K/6

R47

R39

GND_A

R48

2K/6

R118

PANEL_SEL3

10K/6/NC

GND_A

IC4

1

A0

VCC

2

A1 A2 GND

AT24C16

1 2 3 4

TX RX

WP

SCL

SDA

3

4

JP1

CON4/NC

For Debug Use

8

7

6

5

+5V

GND_A

MCU-VDD

C38

GND_A

MCU-VDD

0.1uF/6

R109

10K/6

R110 22/6

R111

10K/6/NC

GND_A

JP2

1 2 3 4

CON4/NC

SCL SDA

GND_A

WP

SCL 3 SDA 3

MUTE-

VOL-PWM

3

1

GND_A

MCU-VDD

+5V

R54 1K/6

R58 4.7K/6

D34

CHN217

2

C42

GND_A

C43

GND_A

LEFT-

0.1uF/6

0.1uF/6/NC

1

VOLUME 7

3

D27

2

RIGHT- UP-

3

CHN217

1

CN3

11 10

9 8 7 6 5 4 3 2 1

CON11P-2.0S

CHN217

2

D28

MUTEMENUSELPWRDOWNUPRIGHT-

LEFT-

GND_A

3

CHN217

2

1

D29

GND_A GND_AGND_A GND_A

R112 1K/6

R55 1K/6

R57 1K/6

R59 1K/6

R60 1K/6

R61 1K/6

R62 1K/6

R64 1K/6

R65 330/6

R66 330/6

DOWN-

MCU-VDD

MUTE_KEY MENU SEL PWR DOWN UP RIGHT LEFT LEDA LEDG

PWR-

3

CHN217

2

1

D30

MCU-VDDMCU-VDD

3

1

GND_AGND_A

SEL- MENU-

3

CHN217

2

D31

1

GND_A

MCU-VDDMCU-VDDMCU-VDD

CHN217

2

D32

LEDA1

LEDG1

1

4.7K/6

R56 4.7K/6

R52

R53

R63 4.7K/6

3

CHN217

2

D33

MCU-VDDMCU-VDD

2

1

Q2

MMST3906

3

1

Q1

MMST3906

3

LEDA

LEDG

ViewSonic Corporation

Model

MCU(I/O_Key)

Title

ViewSonic Corporation Confidential

68

-

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Date Rev:

+3.3V

T0M3 T1M3 T2M3

TCLK1M3

T3M3 T4M3

T5M3 T6M3

TCLK2M3

T7M3

R68 10K/6/NC

R70

LCD-VDD

TCLK1M

T3M T4M

T6M TCLK2M T7M

LCD-VDD

T0M T1M T2M

1

3

5

7

9

11

13

15

17

19

21

23

25

27

29

CN4

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

1841 30P

2

4

6

8

10

12

14

16

18

20

22

24

26

28

30

T0P T1P

T2P

TCLK1P T3P T4P

TXB2+ T6P TXBC+ TCLK2P TXB3+ T7P

T5P

T0P 3 T1P 3 T2P 3

TCLK1P 3 T3P 3 T4P 3

T5P 3 T6P 3 TCLK2P 3 T7P 3

R69

R67

10K/6/NC

+3.3V

+12V

0/6/NC

+5V

+18V

GND_A

L9

BEAD 120/1206

L10

BEAD 120/1206/NC

L11

BEAD 120/1206/NC

GND_A

Max 2.0A

C44

2200pF/6

R71

4.7K/6

1

2

3

4

GND_A

Q3

SI9435

0/6/NC

GND_A

L12

8

7

6

5

BEAD 120/1206

LCD-VDD

LCD-ON4

R73 4.7K/6

ViewSonic Corporation Confidential

69

R72

2.2K/6

3

2

-

Do Not Copy VA2012wb

Q4

MMBT3904

1

GND_A

C45

2200pF/6

GND_A

C48

+

0.1uF/6

C46

GND_A

330uF/16V

GND_A

C47

0.1uF/6

2005.06.13 modify

ViewSonic Corporation

Model

Title Date Rev:

PANEL OUTPUT

FUSE2 0/1210/NC

1

2

L13

BEAD 120/1206/NC

D19 1SS355

GND_A

CN6 CONN 4x2-R

1

2

3

4

6

5

8

7

BL-BRIGHT

BL-ON

BL-BRIGHT 4

C52

GND_A

C49

GND_A

FUSE1 0/1210

0.1uF/6

C50

0.1uF/6/NC

1

GND_A

330uF/16V/NC

2

+12V

GND_A

Max 1.2A 60mil * 3 via

BL-ON 4

10K/6

C83

GND_A

C53

330uF/16V

C54

R74 0/1206

0.1uF/8

C56

GND_A

1uF/8

GND_A

U1

8

BOOST

7

IS

6

VCC

5

AIC1563

R79 3K/6 1%

R80 1K/6 1%

C57 2200pF/6

8

5

6

1

DC

2

DE

3

CF

4

GNDFB

GND_A

R75 47/6

R76 330K/6

120pF/6

C55

GND_A

240K/6 1%

R77

1K/6 1%

R78

D20

1SS355

1

Q6

2

MMST3906

3

7

Q5

C51

NDS9410A/SO

1

4

3

2

0.1uF/6

+5V

Max 2.5A 100mil * 4via

L14 47UH

2

1

D21

RB081L-20

2

GND_A

1

C58

1000pF/6

GND_A

BEAD 120/1206

0.1uF/6

C59

GND_A

L15

C60

1000uF/6.3V

+12V

D24

SSM12LL

+5V

GND_A

VGA-5V

+

C62

DVI-5V

R82

390K/6/NC

100uF/25V/NC

D23 BAT54C-GS08

L20 BEAD 120/0805

C68

100uF/25V

R81 560/6/NC

+

1

8

7

6

5

L16

100UH/NC

DRI IPK VCC

3

1

2

U2

1

SC

2

SE

3

TC

4

GNDFB

AIC1563/NC

U4

3

VOUTVIN

1

ADJ/GND

LT1117/TO223

U4-A1

VOUTVIN

ADJ/GND

AIC1084/TO252/NC

R89

330/6 1%

GND_A

4

2

GND_A

2

4

2

C65 330pF/6/NC

GND_A

R87

200/6 1%

D22

1

RB081L-20/NC

13.3K/1%/NC

1K/1%/NC

L28

+

C69 100uF/25V

C63

2200pF/6/NC

R83

R84

GND_A

BEAD 120/0805

C64

0.1uF/6/NC

MCU-VDD

GND_A

+

C61

GND_A

231

+18V

U3

VOUTVIN

4

VOUTVIN

R86

330/6 1%

CVDD1V8

2

4

VGA_3V3

330uF/16V

L18 BEAD 120/0805

L19 BEAD 120/0805

DVDD

ADC_VAA

2

R85

200/6 1%

+

C67

ViewSonic Corporation

Model

Scaler Power

3

330uF/16V

L21 BEAD 120/0805

+

100uF/25V

C71

1

ADJ/GND

LT1117/TO223

U3-A1

3

1

ADJ/GND

AIC1084/TO252/NC

GND_A

330uF/16V/NC

+5V

D25

2

RB081L-20

D26

1

2

RB081L-20

1

+

C70

100uF/25V

+5V

L17 BEAD 120/0805

U5-A1

3

VOUTVIN

1

ADJ/GND

LT1117/TO223/NC

U5

3

VOUTVIN

1

ADJ/GND

AIC1084/TO252

150/6 1%

R90

+

C66

2

4

+1V8

2

R88

330/6 1%

Title

GND_A

Date Rev:

ViewSonic Corporation Confidential

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Do Not Copy VA2012wb

+5V

VOLUME4

PC AUDIO-IN

J1

ZD005D100

1

5

4

3

2

R91 1K/6

AGND

R95 2K/6

L_LINE

R_LINE

C78

R92 10K/6

3

2

220pF/6

Q7 MMBT3904

1

L23 BEAD 120/0805

1

L24 BEAD 120/0805

220pF/6

C79

R93 6K8/6

1uF/8

C72

AGND

Z0415

2

Z0416 RIN_PC

2

+5V

MUTE4

MUTE

R96 100/6

R97 100/6

R102 10K/6

2

R98

R103 10K/6

3

DTC144EUA

1

10K/6

R94

20K/6

AGND

Q8

VOLU

LIN_PC

20K/6

R99

C75 0.47uF/6

C77 0.47uF/6

C81

0.1uF/8

330uF/16V

C82

+12V

L22 BEAD/1206

U6

4

INL

9

INR VAROUT_L

11

STBY

12

10

SVR

TDA7496L

GND

1

GND

2

15

3

16

VS

VOLUME

VAROUR_R

GND

18

19

13

OUTL

OUTRMUTE

GND

20

L26 BEAD/1206

VCC12

17

5

6

7

14

C73

0.1uF/6

C76

C80

AGND

VOLU

C74 330uF/16V

SPKOUTL

330uF/16V

SPKOUTR

330uF/16V

R100 BEAD 120/0805

R101 BEAD 120/0805

L25 BEAD 120/1206

AGND

CN7

1 2 3 4

4606-04-04P-R

+5V

R104 10K/6

STANDBY4

STANDBY

2

R105 10K/6

3

Q9

DTC144EUA

1

AGND

ViewSonic Corporation Confidential

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AGND

-

Do Not Copy VA2012wb

AGND

GND_A

L27 BEAD/1206

AGND

Model

Title Date Rev:

GND_A

ViewSonic Corporation

AUDIO

11. PCB Layout Diagrams

MB TOP

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MB TOP

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MB BOTTOM

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*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.

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

Assessment

1.

Precautions and Safety Notices

2. Specification

Front Panel Function Control Description

3.

4. Circuit Description

5.

Adjustment Procedure

6. Troubleshooting Flow Chart

7. Recommended Spare Parts List

8. Exploded Diagram and Exploded Parts List

9. Block Diagram

10. Schematic Diagrams

11. PCB Layout Diagrams

tinU riaF daB

dooGtnellecxE

B. Are you satisfied with this Service Manual?

metI tnellecxE dooG riaF daB

.1

Service Manual Content

.2

Service Manual Layout

.3

The form and listing

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

Readers basic data:

Name: Title:

Company: Add.:

Tel: E-mail:

After completing this form, please return it to ViewSonic Quality Assurance

1-909-839-7943. (marc.maupin@viewsonic.com)

You may also e-mail any suggestions to the Director, Quality Systems & Processes

Fax:

in the USA at facsimile

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Viewsonic VA2012W-1, VA2012WB-1 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual