ViewSonic VT2430-1M, VS12335-1M Schematic

Service Manual

ViewSonic VT2430-1M

Model No. VS12335-1M

24” LCD TV

(VT2430-1M_SM Rev. 1a Nov. 2008)

ViewSonic® 381 Brea Canyon Road, Walnut, California 91789 USA - [phone]

Copyright

ViewSonic Corporation

VT2430-1M

Copyright© 2008 by ViewSonic Corporation. All rights reserved. No part of this publication may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or
computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical,
manual or otherwise, without the prior written permission of ViewSonic Corporation.

Disclaimer

ViewSonic makes no representations or warranties, either expressed or implied, with respect to the contents
hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose. Further,
ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents
hereof without obligation of ViewSonic to notify any person of such revision or changes.

Trademarks

Optiquest is a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.

Revision History

Revision SM Editing Date ECR Number

Description of Changes Editor

1a 11/14/08 Initial Release Sophia Kao

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TABLE OF CONTENTS

ViewSonic Corporation

VT2430-1M

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

2. Specification................................................................................................. 3

3. Front Panel Function Control Description................................................ 8

4. Circuit Description....................................................................................... 27

5. Adjustment Procedure................................................................................ 31

6. Trouble Shooting Flow Chart................................................................ ..... 58

7. Block Diagram............................................................................................. 62

8. Schematic Diagrams.................................................................................... 63

9. PCB Layout Diagrams................................................................................. 81

10. Exploded View And Exploded Parts List..................................................88

11. Recommend Spare Parts List................................................................... 91

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1. Precautions and Safety Notices

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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) Disconnect the power plug from AC outlet if the product is not used for a long period of time.
(5) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off.
(6) Do not touch the LCD panel surface with sharp or hard objects.
(7) Do not place heavy objects on the LCD display, video cable, or power cord.
(8) Do not use abrasive cleaners, waxes or solvents for your cleaning.
(9) Do not operate the product under the following conditions:

- Extremely hot, cold or humid environment.

- Areas susceptible to excessive dust and dirt.

- Near any appliance generating a strong magnetic field.

- Place 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. Power Supply Requirements

The external AC power operating range shall be from 90 to 264Vac

5. LCD Module Handling Precautions

5.1. Handling Precautions

(1) Since front polarizer is easily damaged, pay attention not to scratch it.
(2) Be sure to turn off power supply when inserting or disconnecting from input connector.
(3) Wipe off water drop 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 insure human earth

when handling.
(7) Do not open nor modify the Module Assembly.
(8) Do not press the reflector sheet at the back of the module to any directions.
(9) In case if a Module has to be put back into the packing container slot after once it was taken out

from 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 nor tilt the

Interface Connector of the TFT Module.
(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do

not twist nor bend the TFT Module even momentary. At designing the enclosure, it should be

taken into consideration that no bending/twisting forces are applied to the TFT Module from

outside. Otherwise the TFT Module may be damaged.
(12) Cold cathode fluorescent lamp in LCD contains a small amount of mercury. Please follow local

ordinances or regulations for disposal.
(13) Small amount of materials having no flammability grade is used in the LCD module. The LCD

module should be supplied by power complied with requirements of Limited Power Source

(IEC60950 or UL1950), or be applied exemption.
(14) The LCD module is designed so that the CFL in it is supplied by Limited Current Circuit

(IEC60950 or UL1950). Do not connect the CFL in Hazardous Voltage Circuit.

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5.2. Handling and Placing Methods

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Correct Methods: Incorrect Methods:

Only touch the metal frame of the LCD panel or the
front cover of the monitor. Do not touch the surface
of the polarizer.

Surface of the LCD panel is pressed by fingers and

that may cause “Mura”

Take out the monitor with cushions Taking out the monitor by grasping the LCD panel.

That may cause “Mura”

Place the monitor on a clean and soft foam pad. Placing the monitor on foreign objects. That could

scratch the surface of the panel or cause “Mura”

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2. Specification

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LCD panel of this product shall be provided by “CMO” with a model number of M236H1-L01.The
following table defines this panel specification. Any changes in panel must be pre-approved by
ViewSonic in written.

Parameter Specification

LCD Type

LCD Interface 1-Channel LVDS
Resolution (Native) 1920 x 1080
Display Area 23.6” diagonal; 521.28 (H) x 293.22 (V) mm
Pixel Pitch 0.2715 (H) x 0.2715 (V) mm
Viewing Angle H = 170, V = 160 with CR≥10 (Typical)
Contrast Ratio 1000:1 (Typical)
Brightness 300 nits (Typical)
Response Time 5 ms, (Typical), g-g
Brightness Uniformity 75% (Min), measured per panel spec.
Chromaticity(CIE1931) White-x:0.313,White-y:0.329 (Standard Mode Only)
Colors 16.7M (8-bits)
Surface Treatment Hard coating (3H)
Backlight 4 CCFLs (Cold cathode Fluorescent Lamp)
Preset Color Panel Default
Gray Scale 0-255
Rated Life (Backlight) > 50KHrs*(ILO at 3.0mA)

Front Screen Artifacts

Panel Acceptance Spec

Note: Also refer to the panel defect acceptance specification.
Panel performance characteristics “ MUST BE” met in all display modes/inputs at standard test
conditions.

1. RF Tuner

RF tuner of this product shall be provided by “Samsung DTVS205CH201A” for NTSC/ATSC. The
following table defines this tuner specification.

a-Si TFT Active Matrix Wide Color, Transmissive Mode,
Normally Black

VS Standard:
a.) No Visible Streaking, Sag or Smearing artifacts when

driven by the specified video cards (see 7.1 General Test
Equipment) in the primary mode (VGA & 60 Hz) and after
user adjustment

b.) No image drift or lose fine-tune settings due to panel

temperature change.
Refer to the panel acceptance criteria specification.
Note: Intermittent and/or Display Pattern defects which result
in further bright or dark dots will be counted individually
against the above specification.

RF Tuning Range

RF Tuner Sensitivity (S/N
Ratio at un-weight)

Channel Bandwidth NTSC/ATSC/Digital Cable: 6 MHz Maximum
CVBS Characteristics:

Video Amplitude Signal
Audio Characteristics:
SIF out level

Compatible system TUNER NTSC/ATSC/QAM

Compatible system AV NTSC M

Parameter Specification

NTSC/ATSC: 55.25 to 803 MHz, 2-69 Channels for Off-Air and
1-125 Channels for CATV

44 dB (min.)// 48 dB (max.)

0.8(min.)–1.2(max.) V

500mV (typ.)

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2. Video

N

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Built-in A/D converter shall provide analog to digital converter for this product.

Input Parameter Specification

CVBS Characteristics:
Video Amplitude Signal
DC Level Sync Pulse
S-Video Characteristics:
Video Amplitude Signal
Y, Pb, Pr Characteristics:
Video Amplitude Signal
Video Bandwidth
HDMI Characteristics Panel Link T.M.D.S HDMI-1.3
RGB Characteristics:
Signal Type
Sync Type
Input Signal Rating

Sync Level:
Frequency Range
Pixel Color
DDC Compliance

EDID Data Table

3. Audio

Audio amp of this product shall be provided by “YAMAHA” with a Model Number of YDA148 .
“MST” MSD2248AL for VT2430-1M shall be used as sound processor. In addition, a pair of speakers
shall be integrated within this product. The audio signals of this product shall comply with the
specification listed in the following table.

Parameter Specification

Tuner Input Base band Input

Power Output Max Rating 5W at 10 % T.H.D Distortion 5W at 10% T.H.D Distortion
Speaker Impedance main speaker :8 Ω main speaker :8 Ω

Line In

Line Out earphone jack

Flatness of Amplitude
Response
Total Harmonic Distortion
(Po=0.1 to 1 W, f=1KHz)

Signal to Noise:

0.7(min.) – 1.1(max.) V
Typical. 0.3 V

Y : 1.0Vp-p W / Neg. Sync (IN 75 Ω )
C : 0.285Vp-p (IN 75 Ω )
Y:1.0Vp-p (IN 75 Ω)
Pb:0.7 Vp-p(IN 75 Ω),Pr:0.7 Vp-p (IN 75 Ω)

TSC: 6 MHz Maximum

Analog VGA
TTL, Separate Sync, with 2.2KΩ pull-down resistors
1250mV Max without damage to the product, 0-700 mV Full Range

2.5-5.25 V

Horizontal: 30-82K Hz, Vertical: 55-75 Hz

16.7 M
DDC2B Compliant, Rev 1.3
Refer to Appendix

NTSC: BTSC Mono / Stereo(standard)
PAL: FM Mono / Stereo(standard)

+/- 3 db (at 1KHz @1W) +/- 3 db (at 1KHz @1W)

<2% <2%

12 dB (100Hz to 1KHz)
8 dB (1kHz to 10kHz)

500 mV rms (Typ)

1.6 V rms (Max)
Impedance: 600 ohms
500 mV rms
15 mW@32Ω

35 dB (100Hz to 10 kHz)

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4. Electrical

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The following table defines the electrical specification of this product.

ELECTRICAL SPECIFICATION

1 Power Input Voltage Range 100-240VAC +/- 10% Wide Range

2 Input Frequency Range 47-63 Hz

3 Input Current 1.0A @ 115VAC // 0.5A @ 230VAC

Max in < 80A (with fully loaded power supply) at 230Vac

4 Power Supply Inrush

5 Power Consumption: 60 W (Normal), 75W (Max) // Stand by: < 2 W

6 Interference with RF and Video

7 Electromagnetic Compatibility

Power Supply Transient Immunity

8

(Supply Transients and Outage)

9 Surge Immunity Test

Power Supply Missing Cycle

10

Immunity

11 Power Supply Acoustics

12 Efficiency >= 80% @ full load, nominal line

13 Leakage Current <0.5mA @ 240VAC

14 Power Saving(DPMS) N/A

15 Recovery Time < 3 sec.

16 Power Factor Correction Compliant with EN61000-3-2

Shall not result in permanent failure of power supply
(including blown fuse)

There shall be no visible interference between power supply,
RF and video signals. This applies to all available RF
channels and video modes.
This product shall adhere to the compatibility and immunity
specifications in FCC.
Able to withstand an ANSI / IEEE C62.41 – 1980 2000V
ring wave with no damage.
Able to withstand 1.25X nominal Line Voltage for one cycle
with no damage.
Function properly without reset or visible screen artifact
when 1/3 cycle of AC Power is randomly missing.
The Power Supply shall not produce audible noise that would
be detectable by the user (Excluding Power Supply Fan).
“Audible” shall be defined in accordance with ISO 7779
(DIN EN27779:1991).
Power Switch noise shall be Excluded.

5. Firmware & OSD

The product firmware of VS12335-1M shall have a firmware version of V2.00EB0. Any
changes/revisions afterward shall also be pre-approved by ViewSonic in written. For VS12335-1M,
its firmware shall have a built-in frequency table for NTSC/ATSC off-air TV/CATV, and with MTS
implementation.

All audio/video and other output adjustments shall be performed by using an On Screen Display (OSD)
via a Remote Control Unit (RCU) in conjunction with the front panel adjustments.The following tables
list the OSD functions supported by VS12335 -1M.

OSD Table for VS12335-1M

Picture Mode Standard,Dynamic,Soft,Personal

Contrast 0~50~100

Brightness 0~50~100

Sharpness 0~50~100

PICTURE

Tint -50~0~+50

Color 0~50~100

Color Mode Cool, Normal, Warm

Zoom Mode Full, Movie Scale, Zoom In,4:3

Noise Reduction Standard, Strong, Weak, Off

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Sound Mode

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Treble/Bass Bass, Treble, Balance

ADUIO

TIME

OPTION

CHANNEL

LOCK Enter Password

6. Remote Control Unit (RCU)

An IR remote control unit shall accompany this product along with battery. In addition, this remote
control unit shall have an operational distance of 5 meters and an operational angle of 15 degrees for
both horizontal and vertical. Besides the key-code and protocol has fully conformed to VS standard.

Prefer Language(ATSC) English, French, Spanish

Surround Sound On, Off

Audio Only On, Off

Sleep Timer

Time Zone

DST On, Off

Time-Format 12/24-hour

Auto Sync On, Off

Clock

Menu Language English, French, Spanish

Transparency 0%,25%,50%,75%,100%

OSD Time Out 5,15,30,45,60 sec.

Closed Caption CC off, CC on, CC on mute

Basic Selection off, CC 1~4 Text 1~4

Advanced Selection(ATSC) off, Service 1~6

Option(ATSC)

DCR On, Off

Restore Default Yes, No

TV Source Air, CATV

Auto Scan

Favorite
Show/Hide
Channel No.
Channel Label
DTV Signal

Standard, Music, Movie, Sports,
Personal

OFF,
5,10,15,20,30,45,60,90,120,180,240
Min
Pacific, Alaska, Eastern, Central,
Mountain, Hawaii

Year, Month, Day, Hour, Min, OK,
Cancel

Option, Font style, Front size, Front
edge style
Front edge color, FG color, BG color, F
G Opacity

GG Opacity

Scan all channels, Digital channel only,
Analog channel only

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Parameter Specification

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Type IR; Made by Sighter Electronics Co., Ltd.

Range

Life Testing
(Buttons)

Color

Protocol VS key-code & protocol.

Off axis ± 15° ≥ 5M
On axis: ≥ 7M
100,000 cycle operations at a rate of 20~30 cycle / minute without load (with
battery)
Painting Color - PANTONE 427C (Black for front & back cover)
Power Key - PANTONE 032C (RED)
Key Pads – PANTONE 10C & PANTONE 7C(Cool Gray)
Texts Printed on Front Cover and Key Pads - PANTONE 427C

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7. Mechanical

The following table defines the mechanical specifications of this product for both chassis and
cabinet.

Parameter Specification

Dimension
W/O stand
Net Weight 7.0kg
Chassis Plastic Material ABS (ABS HB )
External Plastic Chassis
Components
Internal Plastic Cabinet
Components
Exterior Chassis Color Refer to- Product ID Guide
Chassis Component’s Color
Difference
Chassis Color Drift Due to
UV-Light

Chassis Texture Front Bezel:(N/A ;) Back Cover:N/A ; MT11010)
Molded Plastic Workmanship shall be inspected according to ViewSonic

Screen Printed Parts, Bird
Logo Recess
Rear Label A label identifying the product name, model/serial number and

Wall- Mount 100mmx100mm VESA high hole (n=4), M4 x 10mm, pitch

Sample Sample of textured color chips, plastic material specification,

In addition, all exterior surfaces shall have uniform texture/color. The maximum acceptable
gap between the buckets to bezel plastic pieces shall be within 1.0mm. The maximum

acceptable gap between LCD panel and bezel shall be within 1.3 mm.

8. Environmental

The following table defines the operational/storage conditions of the product.

Operating Temperature

Humidity 10% ~ 65% non-condensing

Altitude 0 meter to +2000 meters above sea level

Storage Temperature

Humidity 0 ~ 90% non-condensing

Altitude 0 meter to 12,000 meters above sea level

W=566.7mm, H=441.9mm and D=211.0mm
W=566.7mm, H=386.7mm and D=85mm

Plastic Chassis, Cover, Stand, Len and Button

N/A

Refer to- Product ID Guide

The color drift due to UL-Light shall be less than 10 “Delta E”
in the 1976 CIE L*a*b color space. Testing shall be
performed according to the requirements of ASTM Test Method
D4459-93.

Molded Plastic Parts Specification, VSCMPPSPEC001V1.2.
Artwork shall be provided and confirmed by ViewSonic.

FCC ID/Logo shall be placed into the rear label recess located
on the rear panel of the chassis.

=0.7mm screw mounting kit not included.

and Material Safety Data Sheets shall be submitted to
ViewSonic prior to Mass Production Release.

0°C to +40°C

-20°C to +60°C

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3. Front Panel Function Control Description

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Front View of the Product

Item Description

Power ON/OFF button

1

Power LED Indicator

2

Remote Control Receiver

3

Volume Down

4

Volume Up

5

MENU

6

CH Down

7

CH Up

8

INPUT

9

Turn the power on from standby mode or turn the power off to
return to the standby mode.

Lights up in blue when the TV is turned on. Lights up in orange
when the TV is in standby mode.

Receives IR signals from the remote control.

Decrease sound volume or adjust a highlighted control while in
OSD menu.

Increase sound volume or adjust a highlighted control while in
OSD menu.

Turn OSD menu ON/OFF.

Channel down when source is TV, or select a control while in
OSD menu.

Channel up when source is TV, or select a control while in OSD
menu.

Select input source.

EL

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Rear View of the Product

Item Description

1 Power (AC input)

Plug-in the supplied AC Power cord and connect to the AC input
power source.

2

HDMI Input Terminal

Connect this port to the HDMI/HDMI-DVI jack of the compatible
equipment.

3

VGA signal input

Connect a 15-pin D-sub RGB cable to the RGB output of your
computer and the other end to the RGB input on the rear of the LCD
TV.

4

YPbPr signal input

Connect this jack to the YPbPr output of A/V device.

5

Composite Video input

Connect this jack to the composite video output connectors on your
A/V equipment.

6

S-Video input

Connect the S-Video cable from the compatible device to this
connector on the rear panel of the LCD TV.

7

AV/ S-Video Audio input
(left/ right)

Connect the Audio in cable for AV/ S-Video from this jack to the
corresponding connectors on your A/V device.

8

YPbPr/ DVI Audio input
(left/ right)

Connect the Audio in cable for YPbPr/ HDMI-DVI from this jack to
the corresponding connectors on your A/V device.

9

PC Audio input

Connect the RGB Audio Out on your computer to the RGB Audio
on the rear of the LCD TV.

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Item Description

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ENGLISH

10 Headphone Jack

11 TV Input Jack

Connect to your headphones. By connecting the headphones, you can
listen to the sound from the TV on headphones.

If you connect the headphones, the TV speakers will be muted.

＊

Connect this jack to your Cable or VHF/UHF antenna.

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Other Equipment

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DVD Player/
VCD Player/
Game system

AC power
socket

DVD Player/
Personal
Computer

Digital
cable box

Personal
Computer

Blu-ray Disc
Player/ PS3

Personal
Computer

VCD Player/
Game system

DVD Player/
VCD Player/
Game system

Digital satellite
receiver

DVD
Player

HeadphoneDVD Player/

Audio
system

VHF/ UHF
CABLE

• Please refer to the Quick Start Guide (supplied) when connecting the other equipment to

your LCD TV.

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Remote Control

Buttons located at the bottom of the LCD TV will operate the same
as these buttons on the remote control.

Button Description

1 INPUT

Press to display the INPUT source list and select
the source with

▲/▼

buttons. To conrm the

selection, press ENTER.

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ENGLISH

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Button Description

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ENGLISH

2 ENTER

3 TV

4 - VOL +

5 GUIDE

Press to conrm the selection in the OSD menu, or

to enter the OSD menu you select.
Press ENTER after you input channel numbers
will change channels immediately.

Press to direct to TV source when in any other
source.

Press to adjust the volume.

Press to display the Electronic Program Guide
(EPG). It contains the program information for the
channel you’re watching.

The picture here shows an example of the GUIDE

＊

screen in a DTV source.

6 LIST

7 0~9, -

number
buttons

8 POWER

Press this button to show a small window showing
program list, you can scroll through the list to select
the channel you want directly without using the

button.

/▼

Press 0~9 and “-” to select a channel. After you
input the channel numbers, press ENTER button
to direct to the channel immediately, or wait for 3
seconds to change automatically.

Press this button to turn the power on from standby
mode. Press it again to return to the standby mode.

▲

9 ▲▼◄►

buttons

Press these buttons to navigate the OSD menus. ▲/▼
is for function select, and ◄/► is for function

adjustment.

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Button Description

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10 MENU

11 ▼ CH ▲

12 ZOOM

13 FAV

Press to turn the OSD (On-Screen Display) menu
on.

Press to change the channels up or down.

Press this button repeatedly to select the screen size.
You can select from Full, 4:3,Movie Scale, and
Zoom In.

The digital TV HD signal is available in Full

＊

and 4:3.

Press this button to show Favorite List and select your
favorite channels that have already been stored.

ENGLISH

14 MUTE

15 INFO

16 SLEEP

17 MTS

To preset favorite channels, use the Favorite item

＊

in the TV menu.(see page 26)

Press to turn off the sound. To restore the sound,
press this button again, or press the VOL+ button.

Press this button to display the current state of the
LCD TV.

Press repeatedly to set the off timer. The function
is used to automatically shut off the LCD TV after
a preset period of time passed. There are several

times for choice – Off, 5 Min, 10 Min, 15 Min, 30

Min, 45 Min, 60 Min, 90 Min, 120 Min, 180 Min,
240 Min.

Press this button to choose the available sound
output that is preset by TV broadcasting station.
(EX: Mono, Stereo, SAP)

18 C.C

19 RECALL

Press to select the Closed Caption menu in the TV
mode.

Press to return to previous channel.

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ENGLISH

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Operation

Turning the TV On and Off

Press the POWER button on the remote control.
You can also use the Power button on the front of the
panel.

Changing Channels

1. Using Channel Buttons

Press ▼CH▲ button to change channels, and the TV

changes channels in sequence. You will see all channels
that have been memorized. Channels erased or not
memorized will not be shown.

2. Using Number Buttons
(1) ATV
The “-” button has no function in ATV mode. Directly
press the number buttons to select channels.
(2) DTV
Use “-” button to select the sub channel in DTV.
Ex: Your desired number is 80-3.
Press 8 → press 0 → press “-” → press 3.
＊Return to the previous channel, press RECALL
button.

Adjusting the Volume

Press VOL +/- to adjust volume.
To turn off the volume, press MUTE.
To restore volume, press MUTE again, or press VOL +/-
directly.

Viewing the Displayed Information

To display the current information of the LCD TV:
Press INFO, and the current state will be displayed on
the screen. (It shows all or some of the information about
Input, Channel, Resolution, Audio Type, etc., depending
on what input source it is in)
＊The picture here shows an example of the INFO screen
in a DTV source.

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Storing Channels into Memory

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1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “CHANNEL” menu.
Press ▲ or ▼ to select “TV Source”, and use ◄ or ►

to select the antenna connection to “Air” or “Cable”.
Air: RF signal programs by “Air”.
Cable: RF signal programs by “Cable”.

3. Press ▲ or ▼ to select “Auto Scan”, then press ► to

enter.

4. Press ▲ or ▼ to select “Scan all channels”, “Digital
channel only”, or “Analog channel only” and press ► to

perform Auto Scan function.
To stop scanning, press MENU at any time.

5. The Auto Scan screen will be shown, and after it is

done, the screen will return to the rst found channel.

ENGLISH

Viewing the Menus

1. Press the MENU button to display the OSD main menu.
There are six top menus on the screen: PICTURE,
AUDIO, TIME, OPTION, LOCK, and CHANNEL.

2. Press ◄ or ► to select your desired top menu.

3. Press ENTER or ▼ to enter the menu you select.

4. Use ▲▼ to select the control you want to adjust.

5. When selecting the control with ►, press ► to enter
next level menu or enable the function. (► will only

appear when the control is highlighted)

6. Press ◄► to adjust or select the settings.

7. Press MENU to exit from the OSD menu.

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ENGLISH

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Selecting the Input Source

To select the TV or other external input sources connected
to the TV.

1. Press the INPUT button on the remote control.

2. Press ▲ or ▼ to select the required input source between

TV, AV, S-Video, YPbPr, HDMI, or PC.

3. To conrm the selection, press ENTER.

Favorite Channel Setting

To set your favorite channel into memory:

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “CHANNEL” menu.
Press ▲ or ▼ to select “Favorite”, then press ► button

to enter “Favorite” setting.

3. Press ▲ or ▼ to select the channel you’d like to be your

favorite channel.
Press ENTER to conrm your selection.

4. To cancel the selection, Press ENTER again on the selected
channel.

5. Press MENU to exit.

＊To view your favorite channels, press FAV button to
show Favorite List and select your favorite channels that
have already been stored.

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Adding/Erasing Channel

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VT2430-1M

When the channel is erased, it will not appear on the

screen when you browse the channels with ▼CH▲

button. To see the channel again, you must add the channel
or perform the “Auto Scan” (page 25) function again.

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “TV” menu.
Press ▲ or ▼ to select “Show/Hide”, then press ►

button to enter “Show/Hide” setting.

3. Press ▲ or ▼ to select the channel you want to Show/

Hide, and check or uncheck it with ENTER button.

4. Press MENU to exit.

ENGLISH

Channel Name Setting

To edit a name for the current channel:

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “CHANNEL” menu.

3. Press ▲ or ▼ to select “Channel No.”, then press ◄ or ►

to select the channel you want to edit the name.

4. Press ▲ or ▼ to select “Channel Label”, then press ►

button to enter “Channel Label” setting.

5. Use ▲ or ▼ to choose letters or signs, ◄ or ► to move

forward or backward.

6. After you input the channel name, press MENU or
ENTER to complete the setting.

7. Press MENU to exit.

Confidential - Do Not Copy

ENGLISH

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Adjusting the Settings

1.

(1) Press the MENU button to display the OSD main menu.

(2) Press ◄ or ► to select your desired top Menu.
(3) Press ▲ or ▼ to select the control of “Contrast”,

“Brightness”, “Sharpness”, “Tint”, “Color”, then press ◄
or ► to adjust the level.

(4) Press MENU to exit.

2.

(1) Press the MENU button to display the OSD main menu.

(2) Press ◄ or ► to select your desired top Menu.
(3) Press ▲ or ▼ to select the control of “Picture Mode”,

“Color Mode”, “Zoom Mode”, “Noise Reduction”,
“Sound Mode”, “MTS”, “Prefer Language” (in DTV mode),
“Surround Sound”, “Audio Only”, “Sleep Timer”, “Time
Zone”, “DST”, “Time Format”, “Auto Sync”, “Clock”,
“Menu Language”, “Transparency”, “OSD Time Out”,

“DCR” (Dynamic Contrast Ratio), then press ◄ or ► to

select your desired option.

(4) Press MENU to exit.

3.

(1) Press the MENU button to display the OSD main menu.

(2) Press ◄ or ► to select your desired top Menu.
(3) Press ▲ or ▼ to select the control with ►, including

“Treble/Bass”, “Closed Caption”, “Restore Default”, then

press ► to perform the function or enter detailed

settings.

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Setting up Time menu

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VT2430-1M

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “TIME” menu.

3. Press ▲ or ▼ to select “Sleep Timer”, and press ◄ or
► to set the “Sleep Timer” from 5~240 min, or Off.

4. Press ▲ or ▼ to select “Time Zone”, and select the correct
time zone of your area with ◄ or ►. The displayed time

of “Clock” will be changed at the same time automatically.

To adjust “Clock”, select “Clock” and press ►. Use ◄
or ► to change between year/ month/ date/ hour/ minute,
▲ or ▼ to adjust. When you nish adjustment, select

“OK” and press ENTER to complete the setting.
＊The “Clock” time can only be adjusted manually

when “Auto Sync” is set to “Off”.

5. Press ▲ or ▼ to select “DST” (Daylight Saving Time),
and select On or Off with ◄ or ► according to the time

zone of your area. The “Clock” time will change
automatically.

6. Press ▲ or ▼ to select “Time Format”, and ◄ or ► to

select 12-hour or 24-hour.

7. Press MENU to exit.

ENGLISH

Closed Caption Setting

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “OPTION” menu.
Press ▲ or ▼ to select “Closed Caption”, then press ►

button to enter “Closed Caption” setting.

3. Press ▲ or ▼ to select CC Mode, Basic Selection, or
Advanced Selection, and use ◄ or ► to make your choice.

Basic Selection: To set basic analog closed caption
options. (CC1~CC4, TEXT1~TEXT4, Off)
Advanced Selection: To select closed caption signal
formats and set up caption modes for digital TV
channels. (Service1~6, Off)

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ENGLISH

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For detailed Close Caption setting:

1. Press ▲ or ▼ to select “Option”, then press ► to enter

“Option” setting.

2. Press ◄ or ► to select the Mode to be “Custom”, and then
use ▲ or ▼ to select desired options and use ◄ or ► to

adjust detailed settings.
＊When you select the Mode to be “Default”, you can

not adjust the detailed settings.

Using the Parent Controls

1. Press the MENU button to display the OSD main menu.

2. Press ◄ or ► to select the “LOCK” menu.

3. Press ENTER or ▼ to enter Password.

4. Enter the password. (The default password is 0000)

5. Move to “System Lock”, and select “On” to enable the
detailed settings.

6. Move to “US” or “Canada” rating system.

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US: Press ► to set TV or MPAA ratings.

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VT2430-1M

(1) TV

1. Press ▲ or ▼ to select “TV”, then press ► to enter

“TV” rating system setting.
The following screen will allow you to customize

the following TV ratings:

Y (all children)
Y7 (older children)
G (general audience)
PG (guidance suggested)
14 (strongly cautioned)
MA (mature audience)

You can also customize the TV ratings for the
following content:

ALL (All types content)
FV (fantasy violence)
V (violence)
S (sexual situations)
L (adult language)
D (sexsual dialog)

ENGLISH

2. Press ENTER to set or reset each area.

3. Press MENU to exit.

(2) MPAA

1. Press ▲ or ▼ to select “MPAA”.

2. Press ▲ or ▼ to select your desired MPAA ratings

level.

The MPAA ratings level are dened as following:

G (general audience)
PG (parental guidance suggested)
PG-13 (recommended for children 14 years of age

or older)

R (mature audience)
NC-17 (no one under 17 years of age)
X (adult audience only)
N/A (not applicable)

3. Press MENU to exit.

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ENGLISH

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VT2430-1M

Canada: Press ► to set Canadian English and French

ratings.
(1) Canadian English

1. Press ▲ or ▼ to select “Canada Eng”.

2. Press ► to enter.

3. Press ▲ or ▼ to select your desired Canadian

English rating level.

The Canadian English rating levels are dened as

following:

C (children)
C8+ (children eight years and older)
G (general programming, suitable for all audiences)
PG (parental guidance)
14+ (viewers and older)
18+ (adult programming)
EXEMPT (exempt)

4. Press MENU to exit.

(2) Canadian French

1. Press ▲ or ▼ to select “Canada Fre”.

2. Press ► to enter.

3. Press ▲ or ▼ to select your desired Canadian

French rating level.

The Canadian French rating levels are dened as

following:

G (genenral)
8ans+ (children eight years and older)
13ans+ (not appropriate for children of less than 13

years)
16ans+ (not appropriate for children of less than 16
years)

18ans+ (reserved to adults)
EXEMPT (exempt)

4. Press MENU to exit.

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To Block Unrated Movie or TV Programs

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VT2430-1M

1. Press ▲ or ▼ to select “Unrated Lock”, then press ◄
or ► to select “On” or “Off”. When “On” is selected,

all programs that are not rated will be blocked.

2. Press MENU to exit.

To Set Rating Region Table

RRT Setting defines the rating standard for a particular
geographic region and/ or country.

1. Press ▲ or ▼ to select “RRT Setting”, then press ► to

enter RRT setting.

2. Select each adjustable setting with ▲ or ▼, then press
◄ or ► to select the sub-selection.

3. Press MENU to exit.

＊The picture here only shows an example of the content
of RRT Setting. However, the selections and sub­selections of RRT Setting may be different in your OSD
menu according to the local broadcasting system.

＊To reset RRT setting, move to “Reset RRT”, and press

► to reset.

ENGLISH

To Change Password

1. Press ▲ or ▼ to select “Change Password”, then press
► to enter “Change Password” setting.

2. Move to “Enter Old Password”, then enter the old
password with number keys.

3. Enter your new password on “Enter New Password”.

4. Enter your new password again on “Conrm Password”.

After you complete the last step, the screen will return to
the top page of LOCK menu. If so, the password has been
changed successfully.

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ENGLISH

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VT2430-1M

To block by Input Source

1. Press ▲ or ▼ to select “Input Block”.

2. Press ▲ or ▼ to select the input source, then ◄ or ►

to select from “Block” or “UnBlock”.

3. Press MENU to exit.

To Restore Factory Setting

1. Press the MENU button to display the OSD main menu.

2. Press ▲ or ▼ to select the “OPTION” menu.

3. Press ENTER or ► to enter “OPTION” menu.

4. Press ▲ or ▼ to select “Restore Default”, then press ►

to restore the factory default setting.

5. Select “Yes” and press ENTER to conrm the setting.

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Using PC Function

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1. When in PC source, press the MENU button to display
the OSD main menu.

2. Press ◄ or ► to select the “PICTURE” menu.

3. Press ▲ or ▼ to select your desired controls, and press
◄ or ► to adjust.

4. For advanced PC functions, select “Advanced” (only

in PC source) and press ► to enter.

5. Press ▲ or ▼ to select “Auto” (Auto adjustment),

“H-Pos” (H-Position), “V-Pos” (V-Position), “Clock”

or “Phase”, and adjust the level with ◄ or ►.

＊When in PC source, the other menus are the same as or

similar to when in other source.

＊When there is no signal in the PC mode, “No Signal” will

be displayed on the screen and the TV will automatically
turn into power-saving mode after a few seconds’ idleness.
Press INPUT or POWER button on the remote control
and the TV will return to VGA mode.

ENGLISH

Notes:Initial password:0000
If you forget your initial password,you can press"3660"to resume.

"MENU" Lock & Un-lock: Pressing "CH+" and "CH-" from Front Panel Keys

"POWER" Lock & Un-lock: Pressing "Vol+" and "MENU" from Front Panel Keys

"BUTTON" Lock & Un-lock: Pressing "Vol+" and "Vol-" from Front Panel Keys

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4. Circuit Description

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 A/D converter

This brick convert is the 110-220AC input voltage to 24V output for inverter use and 5V for panel ,
system and audio use and 3.3V,1.8V for controller use.

 INVERTER

In order to drive the CCFLs embedded in the panel module, there is a half bridge inverter to convert by
the controller.
The input 24V up to hundreds of AC voltage output.
The inverter is formed by symmetric in order to drive the separate lamp modules.
The input stage consists of a PWM controller, half bridge inverter, and switching MOSFET to convert
DC input into AC output.
The output stage consists of a tuning capacitor, coupling capacitor, transformer, push-pull MOSFET
pair to boost AC output up to hundreds of voltage.
And one resister is serial to lamp for output voltage feedback.
There are two signal to control the inverter which come from system.

Logic “high” level which send to I901 is turn on the inverter.

BRI signal control brightness by DC level which was integral from PWM signal.

 I206 Scaler MSD2248AL

The MSD2248AL is a highly integrated controller IC for LCD/PDP DTV applications with resolutions
up to full-HD(1920 x 1080). It is configured with an integrated triple-ADC/PLL, a multi-standard TV
video and audio decoder, a motion adaptive video de-interlacer, a scaling engine, the MStarACE-3
color engine, an advanced 2D graphics engine, a transport processor, a high-definition (HD) MPEG
video decoder, a 24-bit DSP for MPEG audio decoding, a DVI/HDCP/HDMI receiver, and a peripheral
control unit providing a variety of HDTV control
functions.
The MSD2248AL comprises an MPEG-2 transport processor with advanced section filtering capability,
an MPEG-2 (MP@HL profile) video decoder, a DolbyDigital (AC-3)/MPEG layer I and II digital audio
decoder with analog audio outputs that are designed to support ATSC HD/SDTV programs while
handling ATSC CC and EPG.
With additional software support, the MSD2248AL can be used in DVB-T standard areas such as part
of Asia,Africa, and Australia. Furthermore, it is also possible to decode MPEG-4, JPEG, MP3 formats
from external sources such as USB interfaces.
For analog TV, the MSD2248AL includes NTSC/PAL/SECAM multi-standard video decoder
comprising a 3-D motion adaptive comb filter and time-based correction, and a BTSC/A2/EIA-J audio
decoder to support worldwide television standards. In addition, the MStar advanced LCD TV processor
enhances video quality,motion adaptive de-interlacer, picture quality adjustment units, and
MStarACE-3 color engine.
By integrating peripherals including USB 2.0 host controller, UART, IR, SPI, I2C, and PWM, the
MSD2248AL fulfills all requirements in advanced DTV sets.To further reduce system costs, the
MSD2248AL also integrates intelligent power management control capability for green-mode

requirements and spread-spectrum support for EMI management.

PIN DESCRIPTION

Analog Interface

Pin Name Pin Type Function Pin

VCLAMP CVBS/YC Mode Clamp Voltage Bypass 18
REFP Internal ADC Top De-coupling Pin 19
REFM Internal ADC Bottom De-coupling Pin 20
REXT Analog Input External Resister 390 ohm to AVDD_33 13
BIN1P Analog Input Analog Blue Input from Channel 1 21
SOGIN1 Analog Input Sync-On-Green input from Channel 1 22
GIN1P Analog Input Analog Green Input from Channel 1 23
RIN1P Analog Input Analog Red Input from Channel 1 24
BINM Analog Input Reference Ground for Analog Blue Input 25
BIN0P Analog Input Analog Blue Input from Channel 0 26
GINM Analog Input Reference Ground for Analog Green Input 27

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GIN0P Analog Input Analog Green Input from Channel 0 28

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SOGIN0 Analog Input Sync-On-Green Input from Channel 0 29
RINM Analog Input Reference Ground for Analog Red Input 30
RIN0P Analog Input Analog Red Input from Channel 0 31
HSYNC1 Schmitt Trigger Input
w/ 5V-tolerant
HSYNC / Composite Sync for VGA Input from channel 1 16
VSYNC1 Schmitt Trigger Input
w/ 5V-tolerant
VSYNC for VGA Input from channel 1 17
HSYNC0 Schmitt Trigger Input
w/ 5V-tolerant
HSYNC / Composite Sync for VGA Input from channel 0 34
VSYNC0 Schmitt Trigger Input
w/ 5V-tolerant
VSYNC for VGA Input from channel 0 35
Analog Video Input/Output Interface

Pin Name Pin Type Function Pin

VCOM1 Analog Input CVBS Video Input Reference Ground 43
VCOM0 Analog Input CVBS Video Input Reference Ground 45
CVBS7 Analog Input CVBS (Composite) Video Input Channel 7 36
CVBS5 Analog Input CVBS (Composite) Video Input Channel 5 37
CVBS6 Analog Input CVBS (Composite) Video Input Channel 6 38
CVBS4 Analog Input CVBS (Composite) Video Input Channel 4 39
CVBS3 Analog Input CVBS (Composite) Video Input Channel 3 40
CVBS2 Analog Input CVBS (Composite) Video Input Channel 2 41
CVBS1 Analog Input CVBS (Composite) Video Input Channel 1 42
CVBS0 Analog Input CVBS (Composite) Video Input Channel 0 44
CVBSOUT Analog Output CVBS (Composite) Video Output 48
Analog Audio Input/Output Interface

Pin Name Pin Type Function Pin

SIF1P Analog Input SIF Audio Input Channel 1 51
SIF1M Analog Input Reference Ground for SIF Audio Input Channel 1 52
I2S_OUT_MCK Output Audio Master Clock Output 109
I2S_OUT_BCK Output Audio Bit Clock Output 110
I2S_OUT_WS Output Word Select Output; 4mA driving strength 108
I2S_OUT_SD Output Audio Serial Data Output; 4mA driving strength 111
I2S_OUT_MUTE Output Audio Output Mute Control 112
SPDIFO Output S/PDIF Audio Output; 4mA driving strength 107
I2S_IN_SD Input Audio Serial Data Input 105
SPDIFI Input S/PDIF Audio Input 106
AUVRM Analog Output Negative Reference Voltage for Audio ADC 67
AUVRP Analog Output Positive Reference Voltage for Audio ADC 68
AUVAG Analog Output Reference Voltage for Audio Common Mode 69
AUL0 Analog Input Audio Line Input Left Channel 0 55
AUR0 Analog Input Audio Line Input Right Channel 0 56
AUL1 Analog Input Audio Line Input Left Channel 1 57
AUR1 Analog Input Audio Line Input Right Channel 1 58
AUL2 Analog Input Audio Line Input Left Channel 2 59
AUR2 Analog Input Audio Line Input Right Channel 2 60
AUL3 Analog Input Audio Line Input Left Channel 3 61
AUR3 Analog Input Audio Line Input Right Channel 3 62
AUOUTL2 Analog Output Main Audio Output Left Channel 2 71
AUOUTR2 Analog Output Main Audio Output Right Channel 2 72
AUOUTL1 Analog Output Main Audio Output Left Channel 1 73
AUOUTR1 Analog Output Main Audio Output Right Channel 1 74
AUOUTL0 Analog Output Main Audio Output Left Channel 0 76
AUOUTR0 Analog Output Main Audio Output Right Channel 0 77
AUCOM Analog Input Reference Ground for Audio Line Input 63
TS Input Interface

Confidential - Do Not Copy

Pin Name Pin Type Function Pin

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VT2430-1M

TSCLK Input w/ 5V-tolerant TS Clock 100
TSDATA[7:0] Input w/ 5V-tolerant TS Data in Parallel; LSB (bit 0) is for serial TS data 97-90
TSVALID Input w/ 5V-tolerant TS Data Valid 98
TSSYNC Input w/ 5V-tolerant TS Sync-Byte Indicator 99
DVI/HDMI Interface

Pin Name Pin Type Function Pin

RX0N Input DVI/HDMI Channel 0 Negative Data Input 4
RX0P Input DVI/HDMI Channel 0 Positive Data Input 5
RX1N Input DVI/HDMI Channel 1 Negative Data Input 7
RX1P Input DVI/HDMI Channel 1 Positive Data Input 8
RX2N Input DVI/HDMI Channel 2 Negative Data Input 10
RX2P Input DVI/HDMI Channel 2 Positive Data Input 11
RXCKN Input DVI/HDMI Negative Clock Input 2
RXCKP Input DVI/HDMI Positive Clock Input 3
LVDS Interface

Pin Name Pin Type Function Pin

LVA0M Output LVDS A-Link Channel 0 Negative Data Output 146
LVA0P Output LVDS A-Link Channel 0 Positive Data Output 145
LVA1M Output LVDS A-Link Channel 1 Negative Data Output 144
LVA1P Output LVDS A-Link Channel 1 Positive Data Output 143
LVA2M Output LVDS A-Link Channel 2 Negative Data Output 142
LVA2P Output LVDS A-Link Channel 2 Positive Data Output 141
LVACKM Output LVDS A-Link Negative Clock Output 140
LVACKP Output LVDS A-Link Positive Clock Output 139
LVA3M Output LVDS A-Link Channel 3 Negative Data Output 138
LVA3P Output LVDS A-Link Channel 3 Positive Data Output 137
LVB0M Output LVDS B-Link Channel 0 Negative Data Output 159
LVB0P Output LVDS B-Link Channel 0 Positive Data Output 158
LVB1M Output LVDS B-Link Channel 1 Negative Data Output 157
LVB1P Output LVDS B-Link Channel 1 Positive Data Output 156
LVB2M Output LVDS B-Link Channel 2 Negative Data Output 155
LVB2P Output LVDS B-Link Channel 2 Positive Data Output 154
LVBCKM Output LVDS B-Link Negative Clock Output 153
LVBCKP Output LVDS B-Link Positive Clock Output 152
LVB3M Output LVDS B-Link Channel 3 Negative Data Output 151
LVB3P Output LVDS B-Link Channel 3 Positive Data Output 150
Serial Flash Interface

Pin Name Pin Type Function Pin

SCK Output SPI Flash Serial Clock 129
SDI Output SPI Flash Serial Data Input 130
SDO Input w/ 5V-tolerant SPI Flash Serial Data Output 131
SCZ Output SPI Flash Chip Select 132
IRIN Input w/ 5V-tolerant IR Receiver Input 114
INT Input w/ 5V-tolerant MCU Bus Interrupt; 4mA driving strength 115
GPIO Interface

Pin Name Pin Type Function Pin

GPIO125 I/O w/ 5V-tolerant General Purpose Input/Output; 4mA driving strength 12
GPIO124 I/O General Purpose Input/Output; 4mA driving strength 135
GPIO123 I/O General Purpose Input/Output; 4mA driving strength 136
GPIO112 I/O General Purpose Input/Output; 4mA driving strength 148
GPIO111 I/O General Purpose Input/Output; 4mA driving strength 149
GPIO100 I/O General Purpose Input/Output; 4mA driving strength 164
GPIO99 I/O General Purpose Input/Output; 4mA driving strength 165
GPIO98 I/O General Purpose Input/Output; 4mA driving strength 166
GPIO97 I/O General Purpose Input/Output; 4mA driving strength 167
GPIO45/I2S_IN_BCK I/O General Purpose Input/Output; 4mA driving strength /
Audio Bit Clock Input 104
GPIO44/I2S_IN_WS I/O General Purpose Input/Output; 4mA driving strength /
Word Select Output; 4mA driving strength 103

Confidential - Do Not Copy

GPIO28 I/O w/ 5V-tolerant General Purpose Input/Output; 4mA driving strength 87

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GPIO27 I/O w/ 5V-tolerant General Purpose Input/Output; 4mA driving strength 86
GPIO26 I/O w/ 5V-tolerant General Purpose Input/Output; 4mA driving strength 85
GPIO25 I/O w/ 5V-tolerant General Purpose Input/Output; 4mA driving strength 84
GPIO24 I/O w/ 5V-tolerant General Purpose Input/Output; 4mA driving strength 83
GPIO23 I/O w/ 5V-tolerant General Purpose Input/Output; 4mA driving strength 82
GPIO22 I/O w/ 5V-tolerant General Purpose Input/Output; 4mA driving strength 81
GPIO21 I/O w/ 5V-tolerant General Purpose Input/Output; 4mA driving strength 80
GPIO20 I/O w/ 5V-tolerant General Purpose Input/Output; 4mA driving strength 79
GPIO15/CEC I/O General Purpose Input/Output; 4mA driving strength / Consumer Electronics Control
134
GPIO14/UART_TX1 I/O General Purpose Input/Output; 4mA driving strength / Universal
Asynchronous Transmitter 196
GPIO13/UART_RX1/CEC I/O General Purpose Input/Output; 4mA driving strength /
Universal Asynchronous Receiver / Consumer Electronics Control 195
PWM3 Output Pulse Width Modulation Output; 4mA driving strength 125
PWM2 Output Pulse Width Modulation Output; 4mA driving strength 124
PWM1 Output Pulse Width Modulation Output; 4mA driving strength 123
PWM0 Output Pulse Width Modulation Output; 4mA driving strength 122
SAR3 Analog Input SAR Low Speed ADC Input 3; General Purpose Input/Output 121
SAR2 Analog Input SAR Low Speed ADC Input 2; General Purpose Input/Output 120
SAR1 Analog Input SAR Low Speed ADC Input 1; General Purpose Input/Output 119
SAR0 Analog Input SAR Low Speed ADC Input 0; General Purpose Input/Output 118
DRAM Interface

Pin Name Pin Type Function Pin

DQM[3:0] Output Data Mask for Low Byte; active high 177, 188, 231, 242
DQS[3:0] I/O Data Strobe 168, 192, 221, 246
MVREF Input Reference Voltage for DDR SDRAM Interface 197
MCLKZ Output DRAM Memory Negative Differential Clock 198
MCLK Output DRAM Memory Positive Differential Clock 199
MCLKE Output DRAM Memory Clock Enable 200
BADR[1:0] Output DRAM Memory Bank Address 216, 217
WEZ Output Write Enable; active low 218
RASZ Output Row Address Strobe; active low 219
CASZ Output Column Address Strobe; active low 220
MDATA[31:0] I/O DRAM Memory Data Bus 170, 171, 173-176,
178, 179, 181-186,
189, 190, 223, 224,
226-229, 232, 233,
235-240, 243, 244
MADR[12:0] Output DRAM Memory Address 215-210, 208-202
USB Interface

Pin Name Pin Type Function Pin

USB_REXT USB External Resistor Pin;Connected through 910 ohm (±1%) Resistor to GND
(Pin#253)249
USB_DM Analog I/O USB Inverting Data Input/Output 251
USB_DP Analog I/O USB Non Inverting Data Input/Output 252
Misc. Interface

Pin Name Pin Type Function Pin

DDCD_DA I/O w/ 5V-tolerant HDCP Serial Bus Data / DDC Data of DVI/HDMI Port 14
DDCD_CK Input w/ 5V-tolerant HDCP Serial Bus Clock / DDC Clock of DVI/HDMI Port 15
DDCA_DA I/O w/ 5V-tolerant DDC Data for Analog Port 116
DDCA_CK I/O w/ 5V-tolerant DDC Clock for Analog Port 117
HWRESET Schmitt Trigger Input w/ 5V-tolerant Hardware Reset; active high 128
DDCR_DA I/O w/ 5V-tolerant DDC Data for ROM 126
DDCR_CK I/O w/ 5V-tolerant DDC Clock for ROM 127
XIN Analog Input Crystal Oscillator Input 255
XOUT Analog Output Crystal Oscillator Output 254
Power Pins

Confidential - Do Not Copy

Pin Name Pin Type Function Pin

ViewSonic Corporation

32

VT2430-1M

AVDD_SIF 3.3V Power SIF Power 50
AVDD_AU 3.3V Power Audio Power 70
AVDD_DDR 2.5V Power DDR Power 169, 180, 191, 209,
222, 234, 245
AVDD_LPLL 3.3V Power LPLL Power 160
AVDD_MPLL 3.3V Power MPLL Power 256
AVDD_MEMPLL 3.3V Power PLL Power 201
AVDD_33 3.3V Power ADC Power 6, 32, 46
AVDDL_DVI 1.2V Power DVI Power 248
AVDD_USB 3.3V Power USB Power 250
VDDC 1.2V Power Digital Core Power 53, 89, 102, 163,
194, 230, 247
VDDP 3.3V Power Digital Input/Output Power 78, 113, 133, 147
GND Ground Ground 1, 9, 33, 49, 54, 66,
88, 101, 161, 162,
172, 187, 193, 225,
241, 253
No Connects

Pin Name Pin Type Function Pin

NC No connect. 47, 64, 65, 75

 I201,I212 PT5DU281620VP DDRAM (RA)

The PT5DU281620VP is a 134,217,728-bit CMOS Double Data Rate(DDR) Synchronous DRAM,
ideally suited for the main memory applications which requires large memory density and high
bandwidth.
This Wins 128Mb DDR SDRAMs offer fully synchronous operations referenced to both rising and
falling edges of the clock. While all addresses and control inputs are latched on the rising edges of the
CK (falling edges of the /CK), Data, Data strobes and Write data masks inputs are sampled on both
rising and falling edges of it. The data paths are internally pipelined and 2-bit prefetched to achieve
very high bandwidth. All input and output voltage levels are compatible with SSTL_2.

 I201,I212 HYB25DC256163CE-4 DDR1 (16Mx16) (RB)

The 256-Mbit Double-Data-Rate SGRAM is a high-speed CMOS, dynamic random-access memory
containing 268,435,456 bits. It is internally configured as a quad-bank DRAM.
The 256-Mbit Double-Data-Rate SGRAM uses a double-data-rate architecture to achieve high-speed
operation. The doubledata- rate architecture is essentially a 2n prefetch architecture with an interface
designed to transfer two data words per clock cycle at the I/O pins. A single read or write access for the
256-Mbit Double-Data-Rate SGRAM effectively consists of a single 2n-bit wide, one clock cycle data
transfer at the internal DRAM core and two corresponding n-bit wide, one-half-clock-cycle data
transfers at the I/O pins.
A bidirectional data strobe (DQS) is transmitted externally, along with data, for use in data capture at
the receiver. DQS is a strobe transmitted by the DDR SGRAM during Reads and by the memory
controller during Writes. DQS is edge-aligned with data for Reads and center-aligned with data for
Writes.
The 256-Mbit Double-Data-Rate SGRAM operates from a differential clock (CK and CK; the crossing
of CK going HIGH and CK going LOW is referred to as the positive edge of CK). Commands (address
and control signals) are registered at every positive edge of CK. Input data is registered on both edges
of DQS, and output data is referenced to both edges of DQS, as well as to both edges of CK.Read and
write accesses to the DDR SGRAM are burst oriented; accesses start at a selected location and continue
for a programmed number of locations in a programmed sequence. Accesses begin with the registration
of an Active command, which is then followed by a Read or Write command. The address bits
registered coincident with the Active command are used to select the bank and row to be accessed. The
address bits registered coincident with the Read or Write command are used to select the bank and the
starting column location for the burst access.
The DDR SGRAM provides for programmable Read or Write burst lengths of 2, 4 or 8 locations. An
Auto Precharge function may be enabled to provide a self-timed row precharge that is initiated at the
end of the burst access. As with standard SDRAMs, the pipelined, multibank architecture of DDR
SGRAMs allows for concurrent operation, thereby providing high effective bandwidth by hiding row
precharge and activation time.

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An auto refresh mode is provided along with a power-saving power-down mode. All inputs are

ViewSonic Corporation

33

VT2430-1M

compatible with the Industry Standard for SSTL_2. All outputs are SSTL_2, Class II compatible.
Note: The functionality described and the timing specifications included in this data sheet are for the
DLL Enabled mode of operation.

 I501 T uner

The Antenna receive the TV signal and modulate it to the CVBS signal and ATSC signal which can be
recognized By the decoder and MTS audio signal output to the sound multiplexing decoder portion of
IC MSD2248AL

 I601 YDA148 AUDIO AMP

YDA148 (D-510) is a high-efficiency digital audio power amplifier IC with the maximum output of
15W × 2ch.
YDA148 has a “Pure Pulse Direct Speaker Drive Circuit” that directly drives speakers while reducing
distortion of pulse output signal and reducing noise on the signal, which realizes the highest standard
low distortion rate characteristics and low noise characteristics among digital amplifier ICs in the same
class.
In addition, supporting filterless design allows circuit design with fewer external parts to be realized
depending on use conditions.
YDA148 features Power Limit Function, Non-clip Function, and DRC (Dynamic Range Control)
Function that were developed by Yamaha original digital amplifier technology.
YDA148 has overcurrent protection function for speaker output terminals, high temperature protection
function, and lowsupply voltage malfunction prevention function.

 I601 TPA6113A2

The TPA6113A2 is a stereo audio power amplifier packaged in an 8-pin SOIC package capable of
delivering 40mW of continuous RMS power per channel into 16-Ω loads Amplifier gain is extermally
configured by means of two resistors per input channel and does not require external compensation for
settings of 0 to 20 dB.

 I202 MSD809

The MSD809 is a DTV receiver, which contains a digital receiver compatible with ATSC 8-VSB mode
for terrestrial broadcasting and open cable (SCTE DVS-031) which is in compliant with 64-QAM and
256-QAM modes for digital cable appliances.
It achieves extremely high performance employing direct IF sampling architecture,robust
synchronization, and robust channel equalization. It contains a 12-bit A/D converter and a PWM
generator for automatic gain control. A host interface with an I2C bus is also included to control the
behavior of the MSD809.

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5. Adjusting Procedure

ViewSonic Corporation

34

VT2430-1M

5.1. ADJUSTMENT CONDITIONS AND PRECAUTIONS

1. Approximately 30 minutes should be allowed for warm up before proceeding.

2. Adjustments should be undertaken only on those necessary elements since most of them
have been carefully preset at the factory.

3. ESD protection is needed before adjustment.

5.2. MAIN ADJUSTMENTS

NO. FUNCTION DESIGNATION

1. EEPROM Initial Function Key

2. Adjust color temperature

5.3. ALIGNMENT PROCEDURES

Adjustment Conditions and Precautions:

(A). Power supply voltage:AC 110V± 10% 50 Hz ± 5%.
(B). Warm up time:
The display must be power ON for at least 30 minutes at full white pattern before
starting alignments.
This is especially critical in color temperature and white balance adjustments.
(C). Video : reference the front detail specifications.

1. Eeprom Initial:

Press “ MENU ”and “▲” and “POWER” key go to factory mode.

Function Key

2. Adjust color temperature

A. Enter to the factory mode, Source select “ D_Sub” figure 2, Use 19200x1080@60Hz the pattern
is “ 5 block ” figure 1,then move the cursor to the White Balance figure 3. Press “►” key. That will
do auto white balance.

B. After auto white balance, switch to the full white pattern then check the color temperature.
WARM x=0.335 ± 0.03 y=0.350 ± 0.03
NORMAL x=0.313 ± 0.03 y=0.329 ± 0.03
COOL x=0.283 ± 0.03 y=0.298 ± 0.03

C. Enter to the factory mode, Source select “ YPbPr ”, Use NTSC Color Bar (FLUKE 54200 )
Figure 4, Set Color bar to 100 IRE then move the cursor to the White Balance figure 5. Press “►”
Key figure 6. That will do auto white balance. Finally change 16 gray scale must be claire in each
grays.

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figure 1 figure 2 figure 3

ViewSonic Corporation

35

VT2430-1M

figure 4 figure 5 figure 6

3. Power Consumption Check ( VGA MODE )

A. TIMING: 1920 x 1080@60Hz
B. Pattern: 1010UPRIGHTNESS PATTERN
C. BRIGHTNESS=MAX, CONTRAST=MAX.
D. The power that each MODE consumed is shown in Chart 1.

MODE

NORMAL
Stand-by

4. Check the position of the picture displayed and phase auto adjusting (VGA MODE).

Depend on the TIMING of TIMING TABLE (TABLE 4) to switch MODE in order, stay about 10
seconds each MODE, it can changed and stored automatically each MODE. We can’t switch over
to the next MODE until AUTO ADJUST disappears.

5. HDMI MODE FUNCTION TEST

A.DVI MODE: Depend on the TIMING of TIMING TABLE (TABLE 3 ) to check MODE in
order.
B.HDMI MODE: make sure the 480i, 480p, 720p, 1080i,1080p TIMING is right.

6. OSD FUNCTION TEST

Time:1920*1080@60Hz
Pattern: 16*12 pane
Make sure that Each FUNCTION has one right action.

MAX POWER COMSUMED POWER LED COLOR

75W(max) BLUE

2W (max) ORANGE

Chart 1

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7. DTV FUNCTION TEST

ViewSonic Corporation

36

VT2430-1M

Both NTSC and ATSC system were mixed together. At this point in tuner to the joints on the need
for 'AIR NTSC and ATSC 2 both systems were mixed with the signal
Both CATV and DIGITAL CABLE two systems are mixed together. At this point in tuner to the
need for a joint 'CATV and DIGITAL CABLE two systems are mixed in a the signal

8. YPbPr, S-VIDEO, AV, TV, DTV’S FUNCTION TEST

A. Input YPbPr, S-VIDEO, AV , TV, DTV’S signal and check.
B. Input USA air channel (TABLE 1) and USA CATV channel for TV channel.

Under YPbPr MODE, Make sure the 408i, 480P, 720P, 1080i,1080p is right.

9. AUDIO FUNCTION TEST

A. Audio input includes PC AUDIO IN, S-VIDEO/AV AUDIO IN and YPbPr/DVI AUDIO IN.
B. Under PC MODE, input PC AUDIO signal, checks whether the action of AUDIO IN is right.
C. Under S-VIDEO/AV MODE, input L/R AUDIO signal, checks whether the action of AUDIO
IN is right.
D. Under YPbPr MODE, input L/R AUDIO signal, checks whether the action of AUDIO IN is
right.Under HDMI MODE, checks whether the action of AUDIO IN is right Under TV MODE,
checks whether the action of AUDIO IN is right.
E. In DTV mode, the input signal ATSC, confirmed AUDIO LANGUAGE and the normal
movements PARENT

10.Under PC MODE, input PC AUDIO signal, determines whether the action of INT SPEAKER

output is right. Meets earphone with the EARPHONE, Determined whether the action of
EARPHONE output is normal.

11.DDC EDID confirm

VGA EDID confirm
By P502 VGA CONNECTOR DOWNLOAD EDID confirm whether normal or not
HDMI EDID confirm
By P501 HDMI CONNECTORS DOWNLOAD EDID confirm whether normal or not

12.All Modes Reset

After final QC step, we must to erase all saved changes again and restore the factory defaults.
You should do “memory recall ” again.
Turn off the LCD TV by pressing “Power” button

13.BURN IN Mode access methods

Key Pad followed by pressing the "MENU" + "INPUT" 2 KEY, entered BURN IN mode

14.DCR function confirm In all source. (VT2430-1M model only)

A. DCR turn ON.
B. Input full white pattern then measure the luminance. For example Value A
C. Input full dark pattern the measure the luminace. For example Value B
D. These two value ratio must be more than 10000. (A/B).

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TV Frequency Table:

ViewSonic Corporation

37

VT2430-1M

U.S.A Channel (TABLE 1)
VIF 45.75 MHz, SIF 41.25 MHz

(Unit：MHz)

Ch. Freq.range fp (picture) fs (sound) fosc Ch. Freq.range fp (picture) fs (sound) fosc

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
31
32
33
34
35
36
37
38
39
40
41
42

54 – 60
60 – 66
66 – 72
76 – 82

82 – 88
174 – 180
180 – 186
186 – 192
192 – 198
198 – 204
204 – 210
210 – 216
470 – 476
476 – 482
482 – 488
488 – 494
494 – 500
500 – 506
506 – 512
512 – 518
518 – 524
524 – 530

530– 536
536 – 542
542 – 548
548 – 554
554 – 560
560 – 566
566 – 572
572 – 578
578 – 584
584 – 590
590 – 596
596 – 602
602 – 608
608 – 614
614 – 620
620 – 626
626 – 632
632 – 638
639 – 644

55.25

61.25

67.25

77.25

83.25

175.25

181.25

187.25

193.25

199.25

205.25

211.25

471.25

477.25

483.25

489.25

495.25

501.25

507.25

513.25

519.25

525.25

531.25

537.25

543.25

549.25

555.25

561.25

567.25

573.25

579.25

585.25

591.25

597.25

603.25

609.25

615.25

621.25

627.25

633.25

639.25

59.75

65.75

71.75

81.75

87.75

179.75

185.75

191.75

197.75

203.75

209.75

215.75

475.75

481.75

487.75

493.75

499.75

505.75

511.75

517.75

523.75

529.75

535.75

541.75

547.75

553.75

559.75

565.75

571.75

577.75

583.75

589.75

595.75

601.75

607.75

613.75

619.75

625.75

631.75

637.75

643.75

101.00

107.00

113.00

123.00

129.00

221.00

227.00

233.00

239.00

245.00

251.00

257.00

517.00

523.00

529.00

535.00

541.00

547.00

553.00

559.00

565.00

571.00

577.00

583.00

589.00

595.00

601.00

607.00

613.00

619.00

625.00

631.00

637.00

643.00

649.00

655.00

661.00

667.00

673.00

679.00

685.00

43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69

644 – 650
650 – 656
656 – 662
662 – 668
668 – 674
674 – 680
680 – 686
686 – 692
692 – 698
698 – 704
704 – 710
710 – 716
716 – 722
722 – 728
728 – 734
734 – 740
740 – 746
746 – 752
752 – 758
758 – 764
764 – 770
770 – 776
776 – 782
782 – 788
788 – 794
794 – 800
800 – 806

645.25

651.25

657.25

663.25

669.25

675.25

681.25

687.25

693.25

699.25

705.25

711.25

717.25

723.25

729.25

735.25

741.25

747.25

753.25

759.25

765.25

771.25

777.25

783.25

789.25

795.25

801.25

649.75

655.75

661.75

667.75

673.75

679.75

685.75

691.75

697.75

703.75

709.75

715.75

721.75

727.75

733.75

739.75

745.75

751.75

757.75

763.75

769.75

775.75

781.75

787.75

793.75

799.75

805.75

691.00

697.00

703.00

709.00

715.00

721.00

727.00

733.00

739.00

745.00

751.00

757.00

763.00

769.00

775.00

781.00

787.00

793.00

799.00

805.00

811.00

817.00

823.00

829.00

835.00

841.00

847.00

Confidential - Do Not Copy

U.S.A. CATV (TABLE 2)

ViewSonic Corporation

38

VT2430-1M

VIF 45.75 MHz, SIF 41.25 MHz

Ch. Freq.range fp

(picture)
2
3
4

5A

5
6

A-5
A-4
A-3
A-2
A-1

A

B
C

D

E

F

G
H

I
7
8
9

10
11
12
13

J

K

L
M
N
O

P

Q

R

S

T
U
V
W

AA

BB
CC

DD

EE

FF
GG
HH

II

2

54 – 60

3

60 – 66

4

66 – 72

1

72 – 78

5

76 – 82

6

82 – 88

95

90 – 96

96

96 – 102

97

102 – 108

98

108 – 114

99

114 – 120

14

120 – 126

15

126 – 132

16

132 – 138

17

138 – 144

18

144 – 150

19

150 – 156

20

156 – 162

21

162 – 168

22

168 – 174

7

174 – 180

8

180 – 186

9

186 – 192

10

192 – 198

11

198 – 204

12

204 – 210

13

210 – 216
216 – 222

23

222 – 228

24

228 – 234

25

234 – 240

26

240 – 246

27

246 – 252

28

252 – 258

29

258 – 264

30

264 – 270

31

270 – 276

32

276 – 282

33

282 – 288

34

288 – 294

35

294 – 300

36

300 – 306

37

306 – 312

38

312 – 318

39

318 – 324

40

324 – 330

41

330 – 336

42

336 – 342

43

342 – 348

44

348 – 354

45

55.25

61.25

67.25

73.25

77.25

83.25

91.25

97.25

103.25

109.25

115.25

121.25

127.25

133.25

139.25

145.25

151.25

157.25

163.25

169.25

175.25

181.25

187.25

193.25

199.25

205.25

211.25

217.25

223.25

229.25

235.25

241.25

247.25

253.25

259.25

265.25

271.25

277.25

283.25

289.25

295.25

301.25

307.25

313.25

319.25

325.25

331.25

337.25

343.25

349.25

(Unit：MHz)

fs (sound) fosc Ch. Freq.range fp

(picture)

59.75

65.75

71.75

77.75

81.75

87.75

95.75

101.75

107.75

113.75

119.75

125.75

131.75

137.75

143.75

149.75

155.75

161.75

167.75

173.75

179.75

185.75

191.75

197.75

203.75

209.75

215.75

221.75

227.75

233.75

239.75

245.75

251.75

257.75

263.75

269.75

275.75

281.75

287.75

293.75

299.75

305.75

311.75

317.75

323.75

329.75

335.75

341.75

347.75

353.75

101.00

107.00

113.00

119.00

123.00

129.00

137.00

143.00

149.00

155.00

161.00

167.00

173.00

179.00

185.00

191.00

197.00

203.00

209.00

215.00

221.00

227.00

233.00

239.00

245.00

251.00

257.00

263.00

269.00

275.00

281.00

287.00

293.00

299.00

305.00

311.00

317.00

323.00

329.00

335.00

341.00

347.00

353.00

359.00

365.00

371.00

377.00

383.00

389.00

395.00

JJ

KK

LL

MM

NN
OO

PP
QQ
RR

SS

TT
UU
VV

WW

AAA

BBB
CCC

DDD

EEE

46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94

354 –360
360 –366
366 –372
372 –378
378 –384
384 –390
390 –396
396 –402
402 –408
408 –414
414 –420
420 –426
426 –432
432 –438
438 –444
444 –450
450 –456
456 –462
462 –468
468 –474
474 –480
480 –486
486 –492
492 –498
498 –504
504 –510
510 –516
516 –522
522 –528
528 –534
534 –540
540 –546
546 –552
552 –558
558 –564
564 –570
570 –576
576 –582
582 –588
588 –594
594 –600
600 –606
606 –612
612 –618
618 –624
624 –630
630 –636
636 –642
642 –648

355.25

361.25

367.25

373.25

379.25

385.25

391.25

397.25

403.25

409.25

415.25

421.25

427.25

433.25

439.25

445.25

451.25

457.25

463.25

469.25

475.25

481.25

487.25

493.25

499.25

505.25

511.25

517.25

523.25

529.25

535.25

541.25

547.25

553.25

559.25

565.25

571.25

577.25

583.25

589.25

595.25

601.25

607.25

613.25

619.25

625.25

631.25

637.25

643.25

fs

(sound)

359.75

365.75

371.75

377.75

383.75

389.75

395.75

401.75

407.75

413.75

419.75

425.75

431.75

437.75

443.75

449.75

455.75

461.75

467.75

473.75

479.75

485.75

491.75

497.75

503.75

509.75

515.75

521.75

527.25

533.75

539.75

545.75

551.75

557.75

563.75

569.75

575.75

581.75

587.75

593.75

599.75

605.75

611.75

617.75

623.75

629.75

635.75

641.75

647.75

fosc

401.00

407.00

413.00

419.00

425.00

431.00

437.00

443.00

449.00

455.00

461.00

467.00

473.00

479.00

485.00

491.00

497.00

503.00

509.00

515.00

521.00

527.00

533.00

539.00

545.00

551.00

557.00

563.00

569.00

575.00

581.00

587.00

593.00

599.00

605.00

611.05

617.00

623.00

629.00

635.00

641.00

647.00

653.00

659.00

665.00

671.00

677.00

693.00

689.00

Confidential - Do Not Copy

DIGITAL CABLE TV Frequence Table (table 3)

ViewSonic Corporation

39

VT2430-1M

U.S.A Channel Frequency Assignments (Cable)

unit:MHz.

CH NO. DTV Center Freq CH NO. DTV Center Freq CH NO. DTV Center Freq

2 57 43 339 84 585
3 63 44 345 85 591
4 69 45 351 86 597
5 79 46 357 87 603
6 85 47 363 88 609
7 177 48 369 89 615
8 183 49 375 90 621

9 189 50 381 91 627
10 195 51 387 92 633
11 201 52 393 93 639
12 207 53 399 94 645
13 213 54 405 95 93
14 223 55 411 96 99
15 129 56 417 97 105
16 135 57 423 98 111
17 141 58 429 99 117
18 147 59 435 100 651
19 153 60 441 101 657
20 159 61 447 102 663
21 165 62 453 103 669
22 171 63 459 104 675
23 219 64 465 105 681
24 225 65 471 106 687
25 231 66 477 107 693
26 237 67 483 108 699
27 243 68 489 109 705
28 249 69 495 110 711
29 255 70 501 111 717
30 261 71 507 112 723
31 267 72 513 113 729
32 273 73 519 114 735
33 279 74 525 115 741
34 285 75 531 116 747
35 291 76 537 117 753
36 297 77 543 118 759
37 303 78 549 119 765
38 309 79 555 120 771
39 315 80 561 121 777
40 321 81 567 122 783
41 327 82 573 123 789
42 333 83 579 124 795

Confidential - Do Not Copy

TTV receiving test:

ViewSonic Corporation

40

VT2430-1M

TV SIGNAL TEST ITEM
CENTRALISM TRANSMITTING SIGNAL CHECK CONTENT

CHANNEL

ORDER

CHANNEL 2

CHANNEL 6
CHANNEL 7

CHANNEL 13
CHANNEL 14

CHANNEL 36

CHANNEL 69

TV TEST METHOD

A.CHANNEL2 Examines sound by ear, whether the sound does have mechanical resonation and
the electrical unusual sound, and image to sound disturbance.
B.CHANNEL6: Check sound and picture.

C.CHANNEL7: Examines whether the sound does receive the image disturbance, Judgment basis:
Whether there is unusual sound, input signal LEVEL<=36dBu,and STEREO SENSITIVITY is
normal.
D.CHANNEL13: Under main/sub/main-sub mode, check sub function.
E.CHANNEL14: Examines whether the sound does receive the image disturbance, Judgment basis:
Whether there is unusual sound.
F. CHANNEL 36:Check T1 of close-caption. Input signal level<=45dBu.
G.CHANNEL 69: Adjustment attenuator, If the critical point of the change of the image signal to
noise ratio is under LEVEL<=60dBu, regards as normally.

PRODUCTS OUTPUT CHECK ITEM.
The same as " CENTRALISM TRANSMITTING SIGNAL CHECK CONTENT"
saturation TEST, inputs the TV signal, the input signal LEVEL establishment most greatly is
90dBu,check whether CONTRAST of the image is normal; Whether appears the disturbance
phenomenon.
C.AFT CHECK,
(1) The frequency of the input TV signal is 211.25MHz (CH13), after confirmed the TV set
receives this signal, closure radio station; Then set frequency of the TV signal generator to be

212.25MHz, turn on the TV set and check whether the TV set receives the signal of CH13.
(2). The frequency of the input TV signal is 211.25MHz (CH13), after confirmed the TV set
receives this signal, closure radio station; Then set frequency of the TV signal generator to be

212.00MHz, turn on the TV set and check whether the TV set receives the signal of CH13.
(3). After all of FUNCTION TEST completed, we must erase all saved changes again and restore
the factory defaults.

DTV TEST ITEM

FREQUENCY

(MHz)

55.25 MONO SCOPE SWEEP TONE -10

83.25 COLOR BAR 400Hz -10 SOUND ,PICTURE

175.25 Full White (100

211.25 STAIR DUAL -10

471.25 MULTIBURST MONO -16

603.25 MULTIBURST MONO -10 TEST Close-caption T1

801.25 MONO SCOPE MONO(1KHz) -10 NOISE LIMMITTED

PATTERN SOUND P/S(dB)

SET CONTENT

STEREO -10

IRE)

CHECK

CONTENT

ELECTRIC

ABNORMITY

SOUND

STERO FUNCTION

SUB FUNCTION

IMAGE AND

SOUND DISTURB

FUNCTION

SENSITIVITY

CHANNEL FREQUENCY SOUND dB PETTEN CHECK CONTENT

14 471.25MHz Y 50

36 603.25MHz Y 50 Color bar Color

69 801.25MHz Y 75

Dynamic
picture

Dynamic
picture

Picture

Sound and Picture

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DTV CHECK METHOD
A.CHANNEL14: Check whether there are some pause or the mosaic phenomenon in the picture.
B.CHANNEL36: Check whether the color of the color bar is normal.
C.CHANNEL69: Turn RF attenuator and check the critical point of the change of the image’s S/N
is under LEVEL<45~85> dBu, regards as normally.
TIMING TABLE (FACTORY PRESET MODE) (table 4)

No Resolution V-freq

1 1920x1080 60 YES NO NO

2 1680x1050 59.8 YES NO NO

60 YES NO NO

3 1440x900 59.8 YES NO NO

59.9 YES NO NO

4 1280x1024 60 YES NO NO

75 YES NO NO

5 1024x768 60 YES YES YES

75 YES NO NO

6 832x624 75 YES YES YES

7 800x600 60 YES YES YES

75 YES YES YES

8 640x480 60 YES YES YES

75 YES YES YES

9 720x400 70 YES YES YES

D-SUB DVI TO HDMI HDMI

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5. 4 Firmware Upgrade Procedure

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When you receive the returned LCD TV, please check whether the firmware version is the
latest. If not, please do the following procedures to upgrade it to the latest version.

5.4.1 Equipment Needed

- VT24301M LCD TV

- Fixture for Firmware Upgrade

- VGA Cable

- PC (Personal Computer)

- Firmware Upgrade Program

- One additional LCD TV for checking the program execution

5.4.2 Connection PC to the Tv set by the tool as the follow picture (pc1~pc3)

Action: The D_SUB cable must be 15 pin, and the TV set must be AC ON

pc.1

pc 2

pc 3

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5.4.3 Start the Isp

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VT2430-1M

1. Open the “I.exe”

2. Press the “config” , if the the ISP board have been found ,you will see the picture as

bellow.

pc.4

3. Press the “Connect” ,If all the things are ok and ready, it will show the device type as

the bellow picture. Than pres “確定”

pc.5

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4. Press “read” and choose the right F/W .

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VT2430-1M

pc.6

5. Press “Auto”, than press “Run”. It will start ISP . When the ISP is ok ,you will see the
information as the bellow picture.

pc.7

6. Pull away the AC power Cord and the D-SUB Cable. And start another TV set.
When we start another TV set with AC ON, we only need to press the “RUN”

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5.5 VGA DDC Key In Procedure

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VT2430-1M

Note:

1. Every time after replacing the main board, you have to do the DDC key in.

2. If you find the DDC does not conform to the LCD TV, you have to do the DDC key in.

5.5.1 Equipment Needed

- VT2430-1M LCD TV

- DDC Card

- PC

- RS-232 cable

- Barcode Reader

- VGA Cable

VT2430-1M LCD TV DDC Card PC

RS-232 Cable VGA Cable Barcode Reader

5.5.2 Setup Procedure

1. Connect VGA Card and DDC Card with RS-232 cable.

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2. Barcode Reader connects with keyboard and PC keyboard port.

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VT2430-1M

3. Connect DDC Card and VT2430-1M LCD TV with VGA Cable.
(when key in DVI DDC information, use VGA transform to DVI port )

4. Connect Power Cord to VT2430-1M LCD TV.

5. Press ‘MENU’and ‘ENTER’ at the same time, then go into the BURN IN MODE.

5.5.3 DDC Key In Procedure

1. run DDC exe

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2. Choose model number the

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VT2430-1M

3. Press “ENTER” key.

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4. Press “F4” key and Input bar code

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VT2430-1M

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5. Press “ENTER” key, then the successful picture is as follows. “DDC DOWNLOED OK!

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VT2430-1M

6. Exit program.

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5.6 HDMI DDC Key In Procedure

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VT2430-1M

There are three EDID files for the different HDMI connectors. So you must be download the
different EDID into each HDMI connector.

5.6.1 Equipment Needed

- VT2430-1M LCD TV

- PC

- RS-232 cable

- Barcode Reader

- HDMI Cable

-

VT2430-1M LCD TV PC

RS-232 Cable HDMI Cable Barcode Reader

5.6.2 Setup Procedure

1. Connect HDMI Card and DDC Card with RS-232 cable.

2. Barcode Reader connects with keyboard and PC keyboard port.

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3. Connect DDC Card and VT2430-1M LCD TV with HDMI Cable.

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VT2430-1M

4. Connect Power Cord to VT2430-1M LCD TV.

5.6.3 DDC Key In Procedure

1. Run DDC.exe

2. Choose model number then

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VT2430-1M

3. Press “ENTER” key.

4. Press “F4” key.

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5. Input bar code

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VT2430-1M

6. Press “ENTER” key, then the successful picture is as follows. “DDC DOWNLOED
OK!

7. Exit program

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Packing For Shipping And Disassembly Procedure

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VT2430-1M

Packing For Shipping

1. Packing Procedure

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

1.2 Put the LCD TV in the PE bag and seal the bag. (Figure 2)

1.3 Put the cushions on the LCD TV. (Figure 3)

1.4 Place the LCD TV into the carton and put all the accessories into the carton. At last, close the
carton and seal it with tape. (Figure 4)

Figure 1 Figure 2

1.User’s Guide 2..Guarant Card 3.Battery

Power Cord

Remote contrl

Figure 3

Figure 4

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Item

ViewSonic P/N

Ref. P/N

Description

Q'ty

ViewSonic Model Number: VS12335-1M

PACKING PART LIST (VT2430-1M)

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VT2430-1M

Rev:

1 VT24301M monitor 1
2
3
4
5
6
7
8

9
10
11
12

P-00008938 2013053000P POLYETHY BAG 1
P-00009323 2012114500P POLYFOAM(R) 1

NA 2012154600P POLYFOAM(L) 1

P-00008947 2013222536P POLYETHY BAG 1

NA 2001132017P CD-OWNER GUIDE 1

NA 2002310787P GUARANT CARD 1
A-00005362 2427130046P AC POWER CORD 1
P-00009322 2011124001P CARTON BOX 1

NA 2055632329P LABEL 1

NA 2005100401P BATTERY,DRY 2
A-00008204 2419200161P CONT BLOCK 1

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Disassembly Procedure

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VT2430-1M

1.

Disassembly of Stand from LCD TV.

1.1 Unscrew 4 screws to move Stand Unit and Dust Cover .

Dust Cover

2. Disassembly of Rear Cover.

2.1 Unscrew 10 screws in the Rear Cover.

Stand

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2.2 Prize the rectangle hole on Rear Cover (Fig.1) with a screwdriver(Fig.2) to make the Rear Cover

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VT2430-1M

detach from the LCD TV.

Fig.1 Fig.2

Rear Cover

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3.

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VT2430-1M

Disassembly of Main Board, Power Board, Front Cover and Panel Unit.

3.1. Unscrew 2 screws to remove Bracket fix.

Bracket fix

3.2. Unscrew 9 screws to move Speaker and KeyPad Board .

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VT2430-1M

3.3. Unscrew screws 5 to move Shield Plate .

3.4. Unscrew 4 screws and disconnect the wires to remove Main Board.

Speaker

KeyPad Board

Shield Plate

Front Cover

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3.5. Unscrew 4 screws and disconnect the wires to remove Main Board.

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VT2430-1M

Main Board

3.6. Unscrew 4 screws and disconnect the wires to remove Power Board.

Power Board

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3.7. Unscrew screws 4 to move Panel Bracket .

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VT2430-1M

Panel Bracket

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6. Trouble Shooting Flow Chart

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VT2430-1M

START

CHECK MAIN PCB

-

-

CHECK
POWERPCB

OK

CHECK

D807,I801,I801

I103,SUROUND CAP

BEAD OK?

CHECK

D807,I801,I801

I204,SUROUND CAP

BEAD OK?

CHECK

D807,I801,I801

I105,SUROUND CAP

BEAD OK?

CHECK

Q105,Q106

D807,I801,I801

OK?

Y

Y

CHECK

P101

OK?

CHECK

I206

Y

I202

Y

SUROUND CAP OK?

Y

CHECK
I206

CHECK
I107

SUROUND OK?

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6.1 NO DISPLAY

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

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VT2430-1M

Power key

Work ok Keypad P701

Y
Check
PANEL 5V

Y
Check

PC SOUCE

Y

Check

AV SOUCE AV cable

Y

Check

S-Video SOUCE S-Video cable

Y

Check

YPbPr SOUCE

Y

Check

TV SOUCE

Y

Check

HDMI SOUCE

Check

Check

Q105,Q106

Check

D-sub cable

Check

Check

Check

YPbPr cable

Check

RF CABLE

Check

HDMI

Check
I710

Check

Check

I503

Check
P504

Check

P503,SUROU

Check

P504,SUROU

I107,SUROUND

Check

Check

Check
X202

Check
PANEL P106

Check

I503,SUROUND

Check

L503, R576, C538

Check

Check

Check

L502 I501TUNER

Check

I502 P501SUROUN

R561,R565,L505,
L506,C521,C527

R567, R570, R573

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7. Block Diagram

ViewSonic Corporation

VT2430-1M

MSD809(DEMO)

COMBO TUNER

ATSC

HDMI

AV(CVBS)

S_VIDEO DDRx2

YPbPr

PC(D-Sub)

AV/SV Audio(RCAx2)

YPbPr Audio(RCAx2)

PC Audio(mini jack)

MSD2248AL

YAMAYA 148

LCD Module

Flash

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64

Speaker
(6Wx2)

EAR PHONE
OUT

TPA6113A2

8. Schematic Diagrams

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VT2430-1M

8.1. System Power

91

12V

12V13

C109

+

C108

100nF/0603

1500u/16V LESR

P101

1
2

ADJPWMA

3
4
5

BKLON

6
7
8
9

L123 NC/600uH DIP

L101

DUAL BEAD 100R

1500u/16V LESR

C101

L102 40uH DIP

C110

1500u/16V LESR

L103 80R 0805 6A

L104 80R 0805 6A

+

+

0 ~ 3V3

VCC5V-ST
VCC5V-ST 6,8,10,13,15

C111
NC

5VAMP 12,13

BKLON

5VAMP

C112
NC

ADJPWMA

R139 1K

C103
NC

3

Q101

C

NC/3904

R102 0R

+

C102
NC

R107 NC

R108 0R

E

2

23

SOT

B

1

R104
NC

VCC5V-ST

C115
100nF

3

NC/3904

+

C114
NC

Q102

C

R103 NC

R106 100R

E

2

23

SOT

B

1

R109

4.7K

R105
NC

high turn on

R101 0R

VCC5V-ST

VBLCTRL-GPIO12

BRI_ADJ-PWM2 6

VBLCTRL-GPIO12 6

3.3V Stand-by Power

I103 1084-3.3

VCC5V-ST

10u/16V

+

C119

C118
100nF

1

ADJ

VCC3.3V_ADJ

R111
0R

VCC3.3V-ST

23

VOUTVIN

4

TAB

R110
NC

VCC3.3V-ST 6

+

C116

220u/16V LESR

C117
100nF

12V

C160

+

470u/35V/LESR

L120 600R/1.5A 0805

R180

C161

NC

100nF

R181
NC

measure current

C162 100nF

6
5

I109 MP2359DJ/TSOT23-6

1

BST

SW

2

GND

IN

34

FBEN

L121 NC

L122 22uF/15uF

D136
SR36

ONLY C617 C142 C141ARE 50V OTHER IS 16V
CHIP CAP

modify about panel VCC rise time and power off pulse noise 081014

VCC5V-ST

VCC5V-ST

R141
NC

R133

PANEL-ON/OFF-GPIO116

PANEL-ON/OFF-GPIO11

POWER-ON/OFF-GPIO446.13

4.7K

C165

+

47u/16V

L114 80R 0805 6A

R131

4.7K

1

C169
NC/10uF/0805

32

Q106

1

MMBT3904

POWER-ON/OFF-GPIO44

100K 1% 0603
C163
100nF

R184 4K75 1% 0603

R129
10K

R130

4.7K/100R

32

Q105
MMBT3904

R182

100K 1% 0603

VCC5V-ST

C171
100nF

R142
NC

R136
10K

R183

C166
NC

R185
4K75 1% 0603

R135
10K

1

VCC5V-ST

32

Q108
MMBT3904

5VIF

+

C167

C164

220u/16V LESR

100nF

POWER-ON/OFF-GPIO44

measure current

R132
10K

R134

4.7K/100R

32

Q107

1

MMBT3904

5VIF 4

R186 10K

1.2V Core Power

VCC5V-ST

L110
600R/1.5A 0805

I107
STM4953

1

S2

D2

2

G2

D2

3

S1

D1

4

G1

D1

C170
100nF

Q120

1

B

SOT

23

2

E

MMBT3904

VCC5V_IN

C131

+

47u/16V

8
7

PANEL-VCC

6

+5V_General

5

measure current

VCC5V-ST

R187
10K

R188 4.7K

3

C

R123
3K 0603/2.2K

C133

C136

100nF

100nF

PANEL-VCC 14

+5V_General 3,4,8,10,15

1
2

R189 4.7K

VCC5V_OCSET

R124
100K 0603

1.62K 1% 0603

Q121

B

SOT

C

23

E

NC/MMBT3904

VCC5V_EN

C139
100nF

R128

3

I105
AP1533/AP1534

4 5

VCC OUTPUT

3

OCSET

2

EN

1

FB

VCC1.2V_FB

RB

600R/1.5A 0805
L108

VCC5V-ST

L109 NC

+5V_General

L124 NC

measure current

VCC1.2V_OUT

6

OUTPUT

VSS
VSS

R126

1K 1% 0603

7
8

RA

D102
SR36

Vout=VFB*(1+RA/RB)
VFB=0.8V
RB=0.7K~5Kohm

1

1

2.5V Power

D133 GS1B

+

C129

10u/16V

L111
22uH/2.9A

+

1

1

1

C130

VCC2.5V_ADJ

100nF

Vout=Vref*(1+R2/R1)+Iadj*R2
Vref=1.25V

VCC1.2V-ST

+

C132

220u/16V LESR

C134
1u/50V

1

1

I104 1084-ADJ

VOUTVIN

ADJ

TAB

R120
110R 1% 0603

R2

C135
100nF

1

1

VCC2.5V-ST

23
4

R117
100R 1% 0603

R1

VCC1.2V-ST 6

VCC2.5V-ST 6,7

+

C127

220u/16V LESR

C128
100nF

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VT2430-1M

8.2. DTV-MSD809

Tuner-5V4

+5V_General

IFAGC4

RFAGC14

Tuner-5V

IF-4
IF+4

Tuner-5V4

L214 NC

L203 10uH

L201

NC/600R/1.5A 0805

IF­IF+

Close to demod

Tuner-5V

DTV-VDD33

DTV-Pull_Up

+

C233

10u/16V

10nF/0603
C242
C243

10nF/0603

DTV-Pull_Up_1

R225
0R

R228
NC

DTV-Pull_Up_1

R235
NC

R238
NC

T_SCL4
T_SDA4

L213 NC

L212 NC/10uH

L210 600R/1.5A 0805

DTV-VDD33

+

C218

10u/16V

DTV-VDD12

C228
100nF

C235
100nF

C338
NC/470pF

C219
100nF

R217
1K

C234
100nF

499R 1% 0603

R221 220R
R222 220R

R223
220R 0603

R226
1K

C244
100nF

R233
NC

R236
NC

C248
NC

R241 100R
R242 100R

DTV-Pull_Up_1

+

C322

10u/16V

C220
100nF

C229
100nF

C236
100nF

R218

C230
100nF

C237
100nF

R219
1K

R231 0R
R232 NC/0R

R239

4.7K

C334
22pF

C339
1nF

C221
100nF

C231
100nF

C238
100nF

C216
100nF

C226
100nF

R220
1K 0603

DTV-Pull_Up_1

R240

4.7K

TUNER_SCL

TUNER_SDA

C335

22pF

C323
100nF

C222
100nF

C232
100nF

C239
100nF

REF_BOT

10uF/0805
C217

REF_TOP

10uF/0805
C227

DTV-AVDD33_ADC

C241
100nF

REF_BOT
REF_TOP
DTV-IFN

DTV-AVDD33_ADC
DTV-VDD12

DTV-VDD12
DTV-VDD12
DTV-IF_AGC

DTV-RF_AGC

C223
100nF

C340
100nF

C240
100nF

DTV-IFP

DTV-VDD33

C224
100nF

C341
100nF

C342

100nF

76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98

99
100
101

I202

VSSBBH_ABB
VDD33TH_ABB
CML
RN
RP
AIN
AIP
VSSBBTH_ABB
VDD33TH_ABB
VSSIPH
VDD12IH
D_IN3
D_IN2
D_IN1
D_IN0
VDD12IH
VSSIPH
VDD12IH
VSSIPH
IF_GAIN
TU_GAIN
GPIO_OUT1
TUNER_CLK
VDD33OPH
VSSOH
GND

R361

L202
NC/1uH 0603

DTV-VDD33

75567453735272617158705569516859676066576554646263

D_IN4

D_IN5

D_IN6

D_IN7

VSSIPH

VDD33OPH

TUNER_SDA

GPIO_IN1

VDD12IH

VSSIPH

PKDATA7

PKDATA6

12345678910111213141516171819202122232425

NC/0R

DTV_TS-D6

DTV_TS-D7

DTV-VDD12

DTV_TS-D5

DTV-VDD12

VDD12IH

MSD809

PKDATA5

DTV_TS-D4

VSSIPH

PKDATA4

DTV-VDD12

D_IN8

VDD12IH

D_IN9

D_IN10

VSSIPH

PKDATA3

DTV_TS-D3

C213
NC/560pF 0603

C324NC/56pF 0603

DTV-VDD12

D_IN11

VDD12IH

PKDATA2

PKDATA1

DTV_TS-D2

DTV_TS-D1

DTV_TS-D0

CLK_EXT_ADC

PKDATA0

DTV-VDD33

DTV-VDD33

VSSIPH

VDD33OPH

VDD33OPH

VSSOH

LEO-XOUT

OSC_XOUT

RESET_N

DTV-RESETN

X201

49.38111MHz

LEO-XIN

DTV-VDD12

VSSOH

OSC_XIN

VDD12T_ABB

TEST_BIRA

TEST_SIG0

TEST_SIG1

R274 0R

R651 100R
R652 100R
R653 100R
R654 100R
R655 100R
R656 100R
R657 100R
R658 100R

Close to Demodulator

3.3V DTV Demodulator

1.2V DTV Demodulator

C214
27pF/0603

C215
27pF/0603

FILTER

VBB_ABB

VSSBB_ABB

VDD12IH

VSSIPH

TEST_SIG2

DTV-VDD12

DTV_RESET

+5V_General2,4,8,10,15

DTV-VDD33

MSB1501/ S5H1409 option
* C227 on for S5H1409.
* S5H1409 pin 51, 56, 91 must connect to 1.2V
* R322, R325, R324on: S5H1409.
* R328=220, R358=1K, C166= 100nF for S5H1409; R328=1K, R358=10K, C166= 20nF for MSB1501

C225

DTV-VDD12

VSST_ABB

VDD12T_ABB
TEST_SEL0

TEST_SEL1
TEST_SEL2

TEST_SEL3
TEST_SEL4

VDD33OPH

EXT_PLL_SEL

VDD33OPH

TEST_SIG3

PKCLK

TS_D0
TS_D1
TS_D2
TS_D3
TS_D4
TS_D5
TS_D6
TS_D7

10u/16V

1500pF/0603

PLL_SEL

DTV-VDD12

50

VDD12IH

49

VSSIPH

48
47
46

DTV-VDD12

45

VDD12IH

44

VSSIPH

43
42

DTV-VDD33

41
40

VSSOH
I2CADDR1
I2CADDR0

SCL
SDA

VDD12IH

VSSIPH

PKVAL

VDD12IH

VSSIPH

PKERR

PKSYNC

VSSOH

+5V_General DTV-VDD33

D207

C256

+

C255

100nF

39
38
37
36
35
34
33
32
31
30
29
28
27
26

+

10u/16V

SR36

C252

I2CADDR1
I2CADDR0
DTV_I2C-SCL
DTV_I2C-SDA
DTV-VDD12

PLL_SEL
DTV_TS-VLD
DTV-VDD12

TSERR
DTV_TS-SYNC
DTV-VDD33

DTV_TS-CLK

TS_D[7:0] 6

1

I204 1084-3.3

1

C253
100nF

VCC3.3V_ADJ

I205 1084-ADJ

VOUTVIN

ADJ

R252
120R

R341 0R
R342 0R
R343 0R
R344 0R
R345 0R

C337

C336

22pF

22pF

R237
NC

12

D202
NC

23

VOUTVIN

ADJ

TAB

4

TAB

R248
NC

R249
0R

23
4

+

C257

220u/16V LESR

R224 100R
R227 100R

R230 100R

R234 100R

R243 100R

+

C250

220u/16V LESR

DTV-VDD12

DTV-VDD33

TS_CLK

C258

100nF

Demodulator EEPROM I2C Address

R229
1K

I2CADDR0 I2CADDR1 S5H1409 Device ID

R346
NC/1K

I2C-SCL
I2C-SDA

TS_VALID

TS_SYNC

C251
100nF

I2C-SCL 6

I2C-SDA 6

TS_VALID 6

TS_SYNC 6

Close to Demodulator

TS_CLK 6

DTV-VDD33 13

VCC VCC 0xF2
VCC GND 0x72
GND VCC 0xB2
GND GND 0x32

Demodulator Reset

DTV-VDD33

V

I203

-

23

132

SOT

R244

RG

10K

+

NC/LM809 2.65V

DTV-VDD33 DTV-VDD33

I2CADDR1
I2CADDR0

D203

1N4148

1 2

DTVRESET

R273100R

C249
10u/16V

If using 2ndReset,
Change R236 => 1K, C227 => 1uF.

DTVRESET 6

R245
1K

R250
NC/1K

R246
1K

R251
NC/1K

DTV-VDD33 DTV-AVDD33_ADC

L204
600R/1.5A 0805

Using power plane

+

C245

10u/16V

Confidential - Do Not Copy

C246
100nF

C247
100nF

R253
0R

ViewSonic Corporation

67

VT2430-1M

8.3. CAM Tuner

I501
DTVS205EH201A

22

GND

23

GND

24

GND

25

GND

26

GND

27

GND

28

GND

29

GND

NC
NC
NC
NC
NC
NC

RF_AGC

NC

NC/VT

IF(+)

IF(-)

IF_AGC

IF_TP

SCL

SDA

GND

TU 5V

NC

AFT

SIF OUT

CVBS OUT

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

+5V_General2,3,8,10,15

+

RFAGC1

C137
470u/16V

RFAGC1 3

C140
100nF

I106
FP6736S5PTR SOT23-5/SMD

IF trace 15 mil ,Cover GND 12mil,GAP 6mil

IF+
IF­IFAGC
IF_TP
SCLK
SDAT

CAM_Tuner-5V
Tuner-AFT

SIF_OUT

ATV-CVBS

IF+ 3
IF- 3

IFAGC 3

R502 NC

T_SCL 3
T_SDA 3

R501
100K

R503
100K

TUNER-SAR2

C501
100nF

Close to Tuner

R511
0R

ATV_CVBS

L112 10uH

L113 NC

5

V_IN

GND

+

C159
1u/50V

Tuner-5V

32

Q501

1

NC/MMBT3904

measure current

1

SW

2
34

FBSHDN

30VTU

TUNER-SAR2 6

C141

D103 SR36

100nF/0603

Ra

R127 11K5 1% 0603

Vout=VFB*(1+Ra/Rb)
VFB=1.25V
RB=0.7K~5Kohm

30VTU

Tuner-5V

+

C168
470u/16V

C510
NC

Rb

1u/50V/(4.7u)

R125

274K1% 0603

30VTU+5V_General

30VTU

+

C138

C142
100nF/0603

Close to Tuner

C506

10nF/0603

R591 0R

R586
NC/2K2

Close to Mstar IC

Tuner-5V

R504
47K

R587

R508
47K

SIF_Q-B

NC/0

1

C561
NC

R505
10R 0603

SIF_Q-C

32

Q502
MMBT3904

SIF_Q-E

R509
820R 0603

C505
100nF

R506
10R 0603

Tuner-5V

3

Tuner-5V

5VIF

5VIF2

L502 600R/1.5A 0805

C502

100uF/16V

C504

C503

+

100nF

1nF

SIF trace > 15 mil

Close to Mstar IC

SIF

C508
22pF

R507
47R

R510
47R

C507
100nF

C509
100nF

SIF_IN+

SIF_IN-

SIF_IN+ 6

SIF_IN- 6

R588
0R

R513
1K 0603

Confidential - Do Not Copy

L501
0R 0805

C512
NC/680pF

CVBS+

C513
NC/330pF

NC/75R

R514

R512
62R

R515
47R

C511
100nF

C514
100nF

TV_IN+

TV_IN-

TV_IN+ 6

TV_IN- 6

ViewSonic Corporation

68

VT2430-1M

8.4. MSD2248AL Block

VCC5V-ST 6,8,10,13,15

VCC5V-ST

+5V_General

VCC5V-ST
VCC3.3V-ST

VCC5V-ST

12V 2

VCC3.3V-ST 6.13

12V

VCC3.3V-ST

5VAMP 2

5VAMP

VCC5V-ST

+5V_General

15_USB

10_HDMI Interface

08_VGA

09_Video_Interface

2,14

VCC5V-ST
+5V_General

VCC5V-ST
VCC3.3V-ST

USB

HDMI

VGA

USB_OCD_N-GPIO123

HDMI-CEC

HPD_CTRL

DDC_SCL

DDC_SDA
HDMI-CLKP
HDMI-CLKN
HDMI-RX0P
HDMI-RX0N
HDMI-RX1P
HDMI-RX1N
HDMI-RX2P
HDMI-RX2N

VGA_HSYNC1VCC5V-ST
VGA_VSYNC1

RGB1_SOG

RGB1_RIN+
RGB1_GIN+

RGB1_BIN+

RGB0-SOG

RGB0_PB+

RGB0_PB-

RGB0_PR+

RGB0_PR-

Video Interface

CVBS1_IN

11-Audio_Block

PC_Audio-AUL2

PC_Audio-AUR2

12V

VCC3.3V-ST

Audio Block

5VAMP
VCC5V-ST MUTE_S/GPIO124

POWER-SAVING-GPIO98

POWER-ON/OFF-GPIO44

DTV-VDD33

AU_DACO_1L

AU_DACO_1R

AU_DACO_0L

AU_DACO_0R

SHUT_DOWN_AU

USB_DM

USB_DP

UART-TX

UART-RX

RGB0_Y+

RGB0_Y-

Y_CC
YIN_0+
CIN_0+

VCOM1

AUL0
AUR0
AUL1
AUR1

USB_DM
USB_DP

USB_OCD_N-GPIO123

HDMI-CEC
HPD_CTRL
DDC_SCL
DDC_SDA
HDMI-CLKP
HDMI-CLKN
HDMI-RX0P
HDMI-RX0N
HDMI-RX1P
HDMI-RX1N
HDMI-RX2P
HDMI-RX2N

VGA_HSYNC1
VGA_VSYNC1 TS_D[7:0]

RGB1-SOG
RGB1_RIN+
RGB1_GIN+
RGB1_BIN+

UART-TX
UART-RX

RGB0-SOG
RGB0_Y+
RGB0_Y­RGB0_PB+
RGB0_PB­RGB0_PR+
RGB0_PR­Y_CC
YIN_0+
CIN_0+

CVBS1_IN
VCOM1

AUL0
AUR0
AUL1
AUR1

PC_Audio-AUL2
PC_Audio-AUR2

DTV-VDD333

DTV-VDD33

AU_DACO_1L
AU_DACO_1R
AU_DACO_0L
AU_DACO_0R
POWER-SAVING-GPIO98
SHUT_DOWN_AU
MUTE_S/GPIO124
POWER-ON/OFF-GPIO44

DTV-VDD33

06_MSD2248AL_256_IC

USB_DM
USB_DP
USB_OCD_N-GPIO123

HDMI-CEC
HPD_CTRL
HDMI-SCL
HDMI-SDA
HDMI-CLKP
HDMI-CLKN
HDMI-RX0P
HDMI-RX0N
HDMI-RX1P
HDMI-RX1N
HDMI-RX2P
HDMI-RX2N

VGA_HSYNC1
VGA_VSYNC1

RGB1-SOG
RGB1_RIN+
RGB1_GIN+
RGB1_BIN+

UART-TX
UART-RX

RGB0-SOG
RGB0_Y+
RGB0_Y­RGB0_PB+
RGB0_PB­RGB0_PR+
RGB0_PR­Y_CC
YIN_0+
CIN_0+

CVBS1_IN
VCOM1

AUL0
AUR0
AUL1
AUR1

AUL2
AUR2

DTV-VDD33
AU_DACO_1L

AU_DACO_1R
AU_DACO_0L
AU_DACO_0R
POWER-SAVING-GPIO98
SHUT_DOWN_AU
MUTE_S/GPIO124
POWER-ON/OFF-GPIO44

MSD2248AL_256_IC

VCC5V-ST

VCC3.3V-ST
VCC2.5V-ST

POWER-ON/OFF-GPIO44

PANEL-ON/OFF-GPIO11

VCC1.2V-ST

BRI_ADJ-PWM2

VBLCTRL-GPIO12

TV_IN+

TV_IN-

SIF_IN+

SIF_IN-

TUNER-SAR2

I2C-SCL
I2C-SDA

DTVRESET

TS_CLK

TS_SYNC

TS_VALID

TS_D[7:0]

MCLK+

MCLK-

WEZ

DQS[3:0]

DQM[3:0]

MADR[12:0]

MDATA[31:0]

MDDR_VREF

RXE0-

RXE0+

RXE1-

RXE1+

RXE2­RXE2+
RXEC-

RXEC+

RXE3­RXE3+

RXO0­RXO0+

RXO1­RXO1+

RXO2­RXO2+
RXOC-

RXOC+

RXO3­RXO3+

VCC5V-ST
VCC3.3V-ST

VCC2.5V-ST
VCC1.2V-ST
POWER-ON/OFF-GPIO44
PANEL-ON/OFF-GPIO11
BRI_ADJ-PWM2
VBLCTRL-GPIO12

TV_IN+
TV_IN­SIF_IN+
SIF_IN-

TUNER-SAR2
I2C-SCL
I2C-SDA
DTVRESE
TS_CLK
TS_SYNC
TS_VALID

MCLK+
MCLK­CKE

CKE

RAS

RAS

CAS

CAS

WEZ
BA0

BA0

BA1

BA1

DQS[3:0]
DQM[3:0]
MADR[12:0]
MDATA[31:0]

MDDR_VREF

T

RXE0­RXE0+
RXE1­RXE1+
RXE2­RXE2+
RXEC­RXEC+
RXE3­RXE3+

RXO0­RXO0+
RXO1­RXO1+
RXO2­RXO2+
RXOC­RXOC+
RXO3­RXO3+

VCC5V-ST 2.13
VCC3.3V-ST 2

VCC2.5V-ST 2
VCC1.2V-ST 2
POWER-ON/OFF-GPIO44 2.13
PANEL-ON/OFF-GPIO11 2
BRI_ADJ-PWM2 2
VBLCTRL-GPIO12 2

TV_IN+ 4
TV_IN- 4
SIF_IN+ 4
SIF_IN- 4

TUNER-SAR2 4
I2C-SCL 3
I2C-SDA 3
DTVRESET 3

TS_CLK 3

TS_SYNC 3

TS_VALID 3

TS_D[7:0] 3

07_Memory

MCLK+
MCLK­CKE
RAS
CAS
WEZ
BA0
BA1
DQS[3:0]
DQM[3:0]
MADR[12:0]
MDATA[31:0]
MDDR_VREF

14_LVDSx2 Panel

RXE0­RXE0+
RXE1­RXE1+
RXE2­RXE2+
RXEC­RXEC+
RXE3­RXE3+

RXO0­RXO0+
RXO1­RXO1+
RXO2­RXO2+
RXOC­RXOC+
RXO3­RXO3+

Memory

LVDSx2

VCC2.5V-ST

PANEL-VCC

+5V_General

VCC2.5V-ST

PANEL-VCC 2

PANEL-VCC
+5V_General

+5V_General 2,3,4

Confidential - Do Not Copy

ViewSonic Corporation

69

VT2430-1M

8.5. MSD2248AL_256_IC

USB Block

HDMI Block

RGB Block

CVBS Block

Audio Block

SAR

GPIO

MUTE_S/GPIO12413

13

POWER-SAVING-GPIO98

SHUT_DOWN_AU13

PANEL-ON/OFF-GPIO112

USB_OCD_N-GPIO12315

POWER-ON/OFF-GPIO442,13

I2C / UART

PWM

13

VBLCTRL-GPIO122

BRI_ADJ-PWM22

USB_DP15
USB_DM15

HDMI-CLKP10

HDMI-CLKN10

HDMI-RX0P10
HDMI-RX0N10
HDMI-RX1P10
HDMI-RX1N10
HDMI-RX2P10
HDMI-RX2N10

HDMI-CEC10

HPD_CTRL10
HDMI-SDA10
HDMI-SCL10

VGA_HSYNC18
VGA_VSYNC18

RGB1-SOG8

RGB1_RIN+8
RGB1_GIN+8

RGB1_BIN+8

RGB0-SOG9

RGB0_Y+9

RGB0_Y-9
RGB0_PB+9
RGB0_PB-9
RGB0_PR+9
RGB0_PR-9
Y_CC9

YIN_0+9
CIN_0+9

CVBS1_IN9

VCOM19

TV_IN+4

TV_IN-4

SIF_IN+4
SIF_IN-4

AU_DACO_0L13

AU_DACO_0R

AU_DACO_1L13

AU_DACO_1R13

TUNER-SAR24

I2C-SCL3

I2C-SDA3

UART-TX8

UART-RX8

AUL09

AUR09

AUL212

AUR212

AUL19

AUR19

USB_DP
USB_DM

HDMI-CLKP
HDMI-CLKN
HDMI-RX0P
HDMI-RX0N
HDMI-RX1P
HDMI-RX1N
HDMI-RX2P
HDMI-RX2N

HDMI-CEC
HPD_CTRL
HDMI-SDA
HDMI-SCL

VGA_HSYNC1
VGA_VSYNC1

RGB1-SOG
RGB1_RIN+
RGB1_GIN+
RGB1_BIN+

RGB0-SOG
RGB0_Y+
RGB0_Y­RGB0_PB+
RGB0_PB­RGB0_PR+
RGB0_PR­Y_CC

YIN_0+
CIN_0+

CVBS1_IN
VCOM1
TV_IN+
TV_IN-

SIF_IN+
SIF_IN­AUL0
AUR0

AUL2
AUR2

AUL1
AUR1

AU_DACO_0L
AU_DACO_0R

AU_DACO_1L
AU_DACO_1R

TUNER-SAR2

MUTE_S/GPIO124
POWER-SAVING-GPIO98

SHUT_DOWN_AU
PANEL-ON/OFF-GPIO11
VBLCTRL-GPIO12

USB_OCD_N-GPIO123

POWER-ON/OFF-GPIO44

I2C-SCL
I2C-SDA

UART-TX
UART-RX

BRI_ADJ-PWM2

VCC3.3V-ST

C312 NC/10u/16V

V

+

23

SOT

RG

132

NC/LM810 2.65V

NC/24K

I210

Close to IC
as close
as possible
with width trace

SYS_RST

R302

System Crystal

XTALI

CL=20pF ; C0max=5pF

R262 390R 1% 0603

AVDD_ADC

C283
100nF
C284
100nF

C286
100nF

R355 0R

System Reset

R292
10K

R258
1M

X202
12MHz

C260
20pF

C285
NC

0R 0805

VCC3.3V-ST

3

1

D204
BAV99

L208

C315

R303
1K

10u/16V

C301
100nF

XTALO

C261
20pF

HDMI-CLKN
HDMI-CLKP
HDMI-RX0N
HDMI-RX0P
AVDD_ADC
HDMI-RX1N
HDMI-RX1P

HDMI-RX2N
HDMI-RX2P
HPD_CTRL
HDMI-REXT
HDMI-SDA
HDMI-SCL
VGA_HSYNC1
VGA_VSYNC1
VCLP
REFP
REFM
RGB1_BIN+
RGB1-SOG
RGB1_GIN+
RGB1_RIN+
RGB0_PB­RGB0_PB+
RGB0_Y­RGB0_Y+
RGB0-SOG
RGB0_PR­RGB0_PR+
AVDD_ADC

CIN_0+
YIN_0+
Y_CC

CVBS1_IN
VCOM1
TV_IN+
TV_IN­AVDD_ADC

AVDD_SIF
SIF_IN+
SIF_IN­VDDC

AUL0
AUR0
AUL1
AUR1
AUL2
AUR2

2

AUCOM

C304

+

C303

100nF

10u/16V

Close to IC
with width trace

Q203

1

MMBT3906

3 2

SYS_RST System-RST

R311
10K

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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

55
56
57
58
59
60
61
62
63
64

+

R307

100R 0603

R257
909R 1% 0603

GND
RXCN
RXCP
RX0N
RX0P
AVDD_ADC
RX1N
RX1P
GND
RX2N
RX2P
GPIO125
REXT
DDCDA_DA
DDCDA_CK
HSYNC1
VSYNC1
VCLP
REFP
REFM
BIN1P
SOGIN1
GIN1P
RIN1P
BIN0M
BIN0P
GIN0M
GIN0P
SOGIN0
RIN0M
RIN0P
AVDD_ADC
GND
HSYNC0
VSYNC0
C1(CVBS7P)
Y1(CVBS5P)
C0(CVBS6P)
Y0(CVBS4P)
CVBS3P
CVBS2P
CVBS1P
VCOM1
CVBS0P
VCOM0
AVDD_ADC
NC
CVBSOUT
GND
AVDD_SIF
SIF_IN1P
SIF_IN1M
VDDC
GND
LINE_IN_0L
LINE_IN_0R
LINE_IN_1L
LINE_IN_1R
LINE_IN_2L
LINE_IN_2R
LINE_IN_3L
LINE_IN_3R
AUCOM
NC

+

C305
1u/50V

C313
47u/16V

AUVRM
AUVRP

AUVAG

+

10u/16V

AVDD_MPLL

256

257

GND

NC

6570666869

C306

XTALI

255

AVDD_MPLL

GND

67

AUVRM

XTALO

OTG_REXT

USB_DP

USB_DM

AVDD_OTG

254

249

251

252

250

253

XIN

GND

XOUT

USB_DP

USB_DM

AVDD_OTG

LINE_OUT_2L

LINE_OUT_2R

AVDD_AU

AUVRP

AUVAG

AUVRM

73

71

72

AUVRP

AUVAG

AU_DACO_1L

AVDD_AU

7

DQM07DQS0

AVDDL_DVI

AVDD_DDR

VDDC

DQS0

MDATA5

MDATA4

MDATA3

MDATA2

MDATA1

MDATA0

242

243

244

24589246

248

247

AVDD_DVI

USB_REXT

LINE_OUT_1R(DACO_S)NCLINE_OUT_0L(DACO_L)

LINE_OUT_1L

74757654808182838485868788

AU_DACO_1R

237

238

239

240

241

GND

VDDC

VDD_DDR

DDR_DQ[4]

DDR_DQ[3]

DDR_DQ[2]

DDR_DQ[1]

DDR_DQ[0]

DDR_DQS[0]

DDR_DQM[0]

GPIO20

VDDP

GPIO21

GPIO22

GPIO23

GPIO24

GPIO25

LINE_OUT_0R(DACO_R)

78

79

77

GPIOUP

GPIOINC

GPIODEC

GPIODOWN

GPIOMENU

GPIOENTER

SHUT_DOWN_AU

AU_DACO_0L

AU_DACO_0R

VDDP

Transport Stream

EEPROM

R331

R310

NC

4.7K

R333

R334

NC

NC

DQM1 7

AVDD_DDR

MDATA8

MDATA9

MDATA7

MDATA6

232

233

235

236

234

VDD_DDR

DDR_DQ[9]

DDR_DQ[8]

DDR_DQ[7]

DDR_DQ[6]

DDR_DQ[5]

VDDC

TSDATA[0]

GPIO26

GPIO27

GPIO28

GND

9091929394959697101

TS_D0

VDDC

VCC3.3V-ST

TS_CLK
TS_SYNC
TS_VALI

D

TS_D[7:0]

R332
NC

R335
0R

VDDC

AVDD_DDR

DQM1

MDATA15

MDATA14

MDATA13

MDATA12

MDATA11

MDATA10

222

230

223

224

226

227

225

228

229

231

GND

VDDC

DDR_DQ[15]

DDR_DQ[14]

DDR_DQ[13]

DDR_DQ[12]

DDR_DQ[11]

DDR_DQ[10]

DDR_DQM[1]

I206
MSD2248AL

TSDATA[1]

TSDATA[2]

TSDATA[3]

TSDATA[4]

TSDATA[5]

TSDATA[6]

TSDATA[7]

TSVALID

TSSYNC

9899100

TS_VALID

TS_D5

TS_D7

TS_D4

TS_SYNC

TS_D3

TS_CLK

TS_D6

TS_D1

TS_D2

R272 4.7K

R318 4.7K

TS_CLK 3
TS_SYNC 3
TS_VALID 3

TS_D[7:0] 3

I2C address
at A0.

I209NC/24C512K

1

A0

VCC

2

A1

WP

3

A2

SCL

4 5

GND SDA

I2C address
at A4

VCC3.3V-ST2

I211
24C04

1

A0

VCC

2

A1

WP

3

A2

SCL

4 5

GND SDA

DQS1 7

CAS

WEZ

RAS

BA0

BA1

DQS1

MADR12

MADR11

MADR10

217

218

219

220

216

213

214

215

221

VDD_DDR

DDR_BA[0]

DDR_BA[1]

DDR_WE_N

DDR_AD[11]

DDR_AD[12]

DDR_DQS[1]

DDR_RAS_N

DDR_CAS_N

GND

VDDC

TSCLK

GPIO44/I2S_IN_WS

GPIO45/I2S_IN_BCK

I2S_IN_SD

SPDIF_IN

SPDIF_OUT

I2S_OUT_WS

102

103

104

105

106

107

108

109

DTVRESET

VDDC

POWER-ON/OFF-GPIO44

DTVRESET 3

VCC3.3V-ST2,10

VCC3.3V-ST

C311
100nF

8
7

24C32_I2C-SCL I2C-SCL

6

24C32_I2C-SDA

VCC3.3V-STVCC3.3V-ST

8
7

24C04_I2C-SCL

6

24C04_I2C-SDA

AVDD_DDR

MADR8

MADR7

MADR5

MADR6

MADR9

207

208

209

210

211

212

VDD_DDR

DDR_AD[7]

DDR_AD[8]

DDR_AD[9]

DDR_AD[5]

DDR_AD[6]

DDR_AD[10]

I2S_OUT_MCK

I2S_OUT_SCK

I2S_OUT_SD0

I2S_OUT_MUTE

VDDP

IRIN

INT

110

111

112

113

114

115

OSD-POWER-KEY

IR-SYNC

VDDP

EEPROM_WPN-GPIO13

R290 100R
R293 100R

EEPROM_WPN-GPIO13

R336
C316
100nF

4.7K

R312 100R

R313 100R

MADR3

MADR4

205

206

DDR_AD[4]

UART_TX(DDCA_DAT)

117

116

UART-RX

UART-TX

VCC3.3V-ST

R338
100R

MADR2

204

DDR_AD[3]

UART_RX(DDCA_CLK)

118

SAR0

I2C-SDA

R337
NC

C348
100nF

4M

8
7

SPI_SCK

6

SPI_SDI

SAR1

SAR0

DDR-SDRAM Block

AVDD_SIFAVDD_AU

C299

C298

100nF

100nF

VCC3.3V-ST

C302
100nF

VCC3.3V-ST

VCC3.3V-ST2,10

SAR1

R284

2.4K

VCC3.3V-ST2,10

SAR0

R304

2.4K

MDATA31
MDATA30
MDATA29
MDATA28
MDATA27
MDATA26
MDATA25
MDATA24
MDATA23
MDATA22
MDATA21
MDATA20
MDATA19
MDATA18
MDATA17
MDATA16
MDATA15
MDATA14
MDATA13
MDATA12
MDATA11
MDATA10
MDATA9
MDATA8
MDATA7
MDATA6
MDATA5
MDATA4
MDATA3
MDATA2
MDATA1
MDATA0

OSDUP
OSDDOWN
OSDENTER

OSDINC
OSDDEC
OSDMENU

VCC3.3V-ST

CKE
MCLK+
MCLK­CAS
RAS
WEZ
BA0
BA1

MADR12
MADR11
MADR10
MADR9
MADR8
MADR7
MADR6
MADR5
MADR4
MADR3
MADR2
MADR1
MADR0

MDATA[16..31]

7

MDATA[0..15]

7

CKE
MCLK+
MCLK­CAS
RAS
WEZ
BA0
BA1

R278 1K

0V

1V 3V2V

R280

R279

1K

C310
100nF

R289 1K

0V 3V2V1V

R296

1K

C314
100nF

R297

R281

220R 0603

R298

220R 0603

470R 0603

470R 0603

MADR[0..12]

7

7
7
7
7
7
7
7
7

R282

R283

1K

5K1

R299

R300

1K

5K1

AVDD_DDR

R263
1K 1%

MDDR_VREF

C289
100nF

R264

EEPROM_WPN-GPIO13

VDDC

MDDR_VREF

AVDD_MEMPLL

MCLK-

MCLK+

CKE

MADR1

MADR0

193

194

195

196

197

198

199

200

201

202

203

GND

VDDC

MVREF

DDR_DQS[2]

DDR_CKE

DDR_CKO

DDR_AD[0]

DDR_AD[1]

DDR_AD[2]

SAR0/FDSP_IMS/MCU_TMS

SAR1/FDSP_ICLK/MCU_TCK

SAR2/FDSP_IDI/MCU_TDI

119

120

121

VDD_DDR

DDR_CKO_N

DDR_DQ[16]

AVDD_MEMPLL

DDR_DQ[17]

DDR_DQM[2]

GPIO14/UART_TX1

DDR_DQ[18]

GPIO13/UART_RX1/CEC

DDR_DQ[19]
DDR_DQ[20]
DDR_DQ[21]
DDR_DQ[22]
DDR_DQ[23]

VDD_DDR
DDR_DQ[24]
DDR_DQ[25]

DDR_DQM[3]

DDR_DQ[26]
DDR_DQ[27]
DDR_DQ[28]
DDR_DQ[29]

DDR_DQ[30]
DDR_DQ[31]

VDD_DDR

DDR_DQS[3]

GPIO97
GPIO98
GPIO99

GPIO100

AVDD_LPLL
LB0N/RXO0-

LB0P/RXO0+

LB1N/RXO1-

LB1P/RXO1+

LB2N/RXO2-

LB2P/RXO2+

LBCKN/RXOC-

LBCKP/RXOC+

LB3N/RXO3-

LB3P/RXO3+

GPIO11
GPIO12

LA0N/RXE0-

LA0P/RXE0+

LA1N/RXE1-

LA1P/RXE1+

LA2N/RXE2-

LA2P/RXE2+
LACK/RXEC­LACK/RXEC+

LA3N/RXE3-

LA3P/RXE3+

GPIO123
GPIO124

GPIO125/CEC

SPI_CZ0

SPI_DO

SAR3/FDSP_IDO/MCU_TDO

PWM0

122

SPI_CK

PWM1

PWM2

PWM3

HWRESET

DDCR_DA

DDCR_CK

123

124

125

128

126

127

SPI_DI

VDDC

VDDP

VDDP

GND

GND

GND
GND

192
191
190
189
188
187
186
185
184
183
182
181
180
179
178
177
176
175
174
173
172
171
170
169
168
167
166
165
164
163
162
161
160
159
158
157
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129

DQS2
AVDD_DDR
MDATA16
MDATA17
DQM2

MDATA18
MDATA19
MDATA20
MDATA21
MDATA22
MDATA23
AVDD_DDR
MDATA24
MDATA25
DQM3
MDATA26
MDATA27
MDATA28
MDATA29

MDATA30
MDATA31
AVDD_DDR
DQS3

POWER-SAVING-GPIO98

LED_R-GPIO99

LED_B-GPIO100

VDDC

AVDD_LPLL

RXO0­RXO0+
RXO1­RXO1+
RXO2­RXO2+
RXOC­RXOC+
RXO3-

RXO3+
PANEL-ON/OFF-GPIO11
VBLCTRL-GPIO12
VDDP

RXE0-

RXE0+

RXE1-

RXE1+

RXE2-

RXE2+

RXEC-

RXEC+

RXE3-

RXE3+
USB_OCD_N-GPIO123
MUTE_S/GPIO124
HDMI-CEC
VDDP
SPI-CSN0

SPI-SDO
SPI-SDI

SPI-SCK

1K 1%

DQS2

7

DQM2

7

DQM3

7

DQS3

7

in order to reduce power comsumption add GPIO to control AMP sleep mode 080901

RXO0- 14
RXO0+ 14
RXO1- 14
RXO1+ 14
RXO2- 14
RXO2+ 14
RXOC- 14
RXOC+ 14
RXO3- 14
RXO3+ 14

VCC3.3V-ST

R261 4.7K

RXE0- 14
RXE0+ 14
RXE1- 14
RXE1+ 14
RXE2- 14
RXE2+ 14
RXEC- 14
RXEC+ 14
RXE3- 14
RXE3+ 14

R260 4.7K
R360 4.7K

R721 100R
R722 100R
R723 100R
R724 100R

R725 NC/4K7
R726 NC/4K7
R727 NC/4K7
R728 NC/4K7

Mode Selection

VCC3.3V-ST

I2C-SCL

I2C-SDA

PWM1

BRI_ADJ-PWM2

PWM0

System-RST

SAR1

TUNER-SAR2

FLASH0_WPN-SAR3

Debug port

P203

VCC5V-ST

VCC5V-ST2,13

C300

100nF

UART-TX
UART-RX

C200
100nF

R317
10K

C254
100nF

VCC3.3V-ST

R287

R286

R285

4.7K

4.7K

4.7K

R301
NC

R339
100R

SIP4

2.0mm/Male_wafer

123

4

R151

R152

NC

NC

C151

C152

NC

NC

R268
NC/10K

PWM0

R270
10K

VCC5V-ST

R275 100R 0603

C308

10u/16V

P204

13

IRGND

12

IR5V

1

13

11

IRIN

10

RIGHT

9

LEFT

8

POWER

7

LEDR

6

LEDG

5

GND

4

MENU

3

UP

2

DOWN

1

SEL

JST-PH13P-2.0-90

modify Res value from 5K6 to 6K8 080910

VCC5V-ST

LED_B-GPIO100

VCC5V-ST

LED_R-GPIO99

MDDR_VREF

7

VCC1.2V-ST

VDDC

L205

600R/1.5A 0805

+

10u/16V

VCC3.3V-ST2

VCC3.3V-ST

VCC3.3V-ST

R356
10K

R271
NC/1K

PWM1

VBLCTRL-GPIO12

R358
NC/10K

IR-SYNC

OSDINCJEAN
OSDDEC
OSD-POWER-KEY

C3321nF

C3291nF

C3251nF

C3311nF

C333

1nF

C3281nF

C3301nF

relayout bypass cap link GND position from via to board side GND 081014

LED Driver

1

B

LEDB

SOT

3

C

23

2

E

Q201
MMBT3906

1

B

LEDR

SOT

3

C

23

2

E

Q202
MMBT3906

INTERFACE

SPI_CSN0
SP_SDO
SPI_SDI
SPI_SCK

VCC3.3V-ST

VCC3.3V-ST

C290
1nF

PANEL

R269
1K

BRI_ADJ-PWM2

C309
100nF

C3261nF

R288 2K2

R294 6K8

VCC5V-ST

R305 2K2

R308 5K6

VCC5V-ST

VCC1.2V-ST2

VCC3.3V-ST
VCC3.3V-ST

R340 100R

C3271nF

C264

+

C262

C263

100nF

10u/16V

VCC3.3V-ST VDDP

L206

600R/1.5A 0805

+

C271

10u/16V

VCC2.5V-ST

VCC2.5V-ST2,7

+

C277

10u/16V

VCC3.3V-ST

VCC3.3V-ST2

AVDD_OTG AVDD_MPLL

C287
100nF

AVDD_ADC AVDD_DVI

+

C291

10u/16V

Boot Loader SPI Flash

VCC3.3V-ST

R276 470R 0603

R277 3K9

OSDMENU
OSDUP

OSDDOWNJEAN

OSDENTER

R291 0 0603

OSDINCJEAN

R295 NC/0 0603

R306 0 0603

OSDDOWNJEAN OSDDOWN

R309 NC/0 0603

R295 , R309 ------ JEAN STD
R291 , R306 ------ CUSTOMER

C266

C265

100nF

100nF

C273

C272

100nF

100nF

AVDD_DDR

C278

C279

100nF

100nF

AVDD_MPLL

VCC3.3V-ST2

C288
100nF

Using power plane

C293

C292

100nF

100nF

*100MHz, No any VIA hole !

R266
NC/4.7K

LEDR
LEDB

VCC3.3V-ST2

R71110K

OSDUP
OSDDOWN
OSDENTER
OSDINC
OSDDEC
OSDMENU

OSDINC

OSDDOWN

OSDINC

C267
100nF

FLASH0_WPN-SAR3

VCC3.3V-ST

R71310K

R71410K

R71210K

C268
100nF

C274
100nF

C280

C281

100nF

100nF

VCC3.3V-ST

C294
100nF

Close to Scaler

SPI_CSN0
SP_SDO

R267
10K

R71510K

R71610K

R701 NC
R702 NC
R703 NC
R704 NC
R705 NC
R706 NC

modify circuit 080710

AVDDL_DVI

C270

C269

100nF

100nF

C275

C276

100nF

100nF

C282
100nF

AVDD_LPLL
AVDD_MEMPLL
AVDD_AU
AVDD_SIF
AVDD_OTG

L207
600R/1.5A 0805

AVDD_LPLL

AVDD_MEMPLL

C296
100nF

I207
MX25L2305DM2I-12G

1

CE#

2

SO

HOLD#

3

WP#

4 5

VSS SI

GPIOUP
GPIODOWN
GPIOENTER
GPIOINC
GPIODEC
GPIOMENU

+

C349

10u/16V

AVDD_ADC
AVDD_DVI

C297
100nF

VDD

SCK

MDDR_VREF

Confidential - Do Not Copy

ViewSonic Corporation

70

VT2430-1M

8.6. DDR1

Middle of DRAM and MStar

I201

MADR_AD0
MADR_AD1
MADR_AD2
MADR_AD3

MADR_AD5
MADR_AD6
MADR_AD7

6

MADR[0..12]

6
6
6
6
6

6
6

6

BA1
BA0
WEZ
RAS
CAS

CKE
MCLK+

MCLK-

RP21 RP56X4

MADR0
MADR1
MADR2
MADR3

RP23 RP56X4

MADR4
MADR5
MADR6
MADR7

RP25 RP56X4

MADR8
MADR9
MADR10
MADR11

MADR12

R347 56R

Close to MStar IC

BA1

RP32 RP56X4

BA0
WEZ
RAS
CAS

CKE
MCLK+

MCLK-

1234

8765

1234

8765

1234

8765

R202 56R

1234

8765

R212 22R

Close to MStar IC

MADR_AD0
MADR_AD1
MADR_AD2
MADR_AD3

MADR_AD4
MADR_AD5
MADR_AD6 LDQS0

6

MADR_AD7
MADR_AD8

MADR_AD9
MADR_AD10
MADR_AD11

MADR_AD12

M_BA1
M_BA0
M_WE
M_RAS
M_CAS

M_CKE

6
6

6
6

DQS1

6

DQS0

6

DQM1

6

DQM0

DQS3
DQS2

DQM3
DQM2

R205 27R

DQS1

R206 27R

DQS0

R208 33R

DQM1

R210 33R

DQM0

Close to DDR-SDRAM

DQS3

R348 27R
R349 27R

DQS2
DQM3

R350 33R
R351 33R

DQM2

Close to DDR-SDRAM

VCC2.5V-ST

VCC2.5V-ST2,6

Z=120ohm/0603 3A

L0603

Z=120ohm/0603 3A

L0603

+2.6MVDD1 +2.6MVDD2

L215

100uF/16V

+2.6MVDD2

L216

100uF/16V

EC57 / EC58 Change to 100uF
Reduce Ripple 200mV to
100mV

C201

C203
100nF

C202

C209
100nF

C204
100nF

C210
100nF

C205
100nF

C343
100nF

C206
100nF

C344
100nF

C207
100nF

C345
100nF

C208
100nF

C346
100nF

MADR_AD8
MADR_AD9
MADR_AD10
MADR_AD11

M_WE
M_CAS
M_RAS

UDQS0
LDQM0

UDQM0
M_BA0

M_BA1

MADR_AD0
MADR_AD1
MADR_AD2
MADR_AD3
MADR_AD4

MADR_AD6
MADR_AD7
MADR_AD8
MADR_AD9
MADR_AD10
MADR_AD11

M_WE
M_CAS
M_RAS

LDQS1
UDQS1

LDQM1
UDQM1

M_BA0
M_BA1

DDR_128Mb_TSOP66

29

A0

30

A1

31

A2

32

A3

35

A4

36

A5

37

A6

38

A7

39

A8

40

A9

28

A10/AP

41

A11

21

WE

22

CAS

23

RAS

16

LDQS

51

UDQS

20

LDM

47

UDM

26

BA0

27

BA1

24

CS

14

NC

17

NC

34

VSS

48

VSS

66

VSS

6

VSSQ

12

VSSQ

52

VSSQ

58

VSSQ

64

VSSQ

DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7

DQ8

DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15

VREF

CLK

CLK

CKE

MVDD
MVDD
MVDD
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ

2
4
5
7
8
10
11
13

54
56
57
59
60
62
63
65

49
46

45
44

19

NC

25

NC

42

NC

43

NC

50

NC

53

NC

1
18
33
3
9
15
55
61

2M X 16bit X 4BK

I212

DDR_128Mb_TSOP66

29

A0

30

A1

31

A2

32

A3

35

A4

36

A5

37

A6

38

A7

39

A8

40

A9

28

A10/AP

41

A11

21

WE

22

CAS

23

RAS

16

LDQS

51

UDQS

20

LDM

47

UDM

26

BA0

27

BA1

24

CS

14

NC

17

NC

34

VSS

48

VSS

66

VSS

6

VSSQ

12

VSSQ

52

VSSQ

58

VSSQ

64

VSSQ

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

DQ8

DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15

VREF

CLK

CLK

CKE

MVDD
MVDD
MVDD
VDDQ
VDDQ
VDDQ
VDDQ
VDDQ

2
4
5
7
8
10
11
13

54
56
57
59
60
62
63
65

49
46

45
44

19

NC

25

NC

42

NC

43

NC

50

NC

53

NC

1
18
33
3
9
15
55
61

2M X 16bit X 4BK

RP22 RP22X4

DATA15
DATA14
DATA13
DATA12

RP24 RP22X4

DATA11MADR_AD4
DATA10
DATA9
DATA8

RP26 RP22X4

DATA7
DATA6
DATA5
DATA4

RP27 RP22X4

DATA3
DATA2
DATA1
DATA0

MVREF

CLKN0

M_CKE

MADR_AD12

+2.6MVDD1

Middle of DRAM and MStar

RP28 RP22X4

DATA31
DATA30
DATA29
DATA28

RP29 RP22X4

DATA27
DATA26MADR_AD5
DATA25
DATA24

RP30 RP22X4

DATA23
DATA22
DATA21
DATA20

RP31

DATA19
DATA18
DATA17
DATA16

MVREF
CLKN1
M_CKE

MADR_AD12

8765

1234

8765

1234

8765

1234

8765

1234

Close to DRAM

R209 300R 1%

8765

1234

8765

1234

8765

1234

RP22X4

8765

1234

Close to DRAM

R353 300R 1%

MDATA15
MDATA14
MDATA13
MDATA12
MDATA11
MDATA10
MDATA9
MDATA8

MDATA7
MDATA6
MDATA5
MDATA4
MDATA3
MDATA2
MDATA1
MDATA0

R207 22R
R211 22R

Close to Mstar IC

MDATA31
MDATA30
MDATA29
MDATA28
MDATA27
MDATA26
MDATA25
MDATA

MDATA23
MDATA22
MDATA21
MDATA20
MDATA19
MDATA18
MDATA17
MDATA16

R352 22R
R354 22R

Close to Mstar IC

24

MDATA[0..15]

MCLK­MCLK+CLK0

MDATA[16..31]

MCLK­MCLK+CLK1

VCC2.5V-ST

C347
NC/100nF

MDATA[0..15]

R215
1K 1%

R216
1K 1%

MDATA[16..31]

6

R364 NC/0R

C211
100nF

6

C212
1nF

Qimonda
HYB25DC256163CE-4(16X16)

MDDR_VREF

6

Confidential - Do Not Copy

ViewSonic Corporation

71

VT2430-1M

8.7. VGA

D526

4.7P

add D525,D526 make a ESD protect 081014

VGA_VSYNC

VGA-TX

VGA_HSYNC

P502
DSUB-15

11
12
13
14
15

R554 100R

1
6
2
7
3
8
4
9
5
1016

17

R553 100R

VGA-RX

VGA5V

D506

4.7P

D525

4.7P

R-

G-

B-

D509

D510

D511

Close to VGA

R543
75R

R544
75R

R545
75R

VGA_RIN+
VGA_GIN+
VGA_BIN+

R539 47R
R540 47R
R541 47R
R542 470R

C516 47nF
C517 47nF
C518 47nF
C519 1nF

RGB1_RIN+
RGB1_GIN+
RGB1_BIN+
RGB1_SOG

RGB1_RIN+ 6

RGB1_GIN+ 6
RGB1_BIN+ 6
RGB1_SOG 6

6,8,13,15

VCC5V-ST
VCC5V-ST

D512

4.7P

VGA5V

D514
BAT54C

D507

4.7P

R546
510R

R547
510R

D513

4.7P

D508

4.7P

C520
100nF

I503
24C21

1

NC

2

NC

3

NC

4 5

GND SDA

4.7P

4.7P

4.7P

modify pull high voltage from +5V_General to VGA5V 080515

R552

4.7K

R556
100R

R589 0R
R590 0R

VGA-TX
VGA-RX

IIC make a difference for EDID and ISP 081014

R557 NC/100R
R559 NC/100R

VCC

VCLK

SCL

DDC_SCL_D
DDC_SDA_D

8

VGA-VCLK

7

VGA-SCL

6

VGA-SDA

NC

R558

R550
100R

R560
10K

R551

4.7K

R555
100R

Close to MST. IC

VGA_HSYNC1

VGA_VSYNC1

R549
10K

UART-RX 6

UART-TX 6

UART-RX
UART-TX

R548

2.4K

VGA_HSYNC1 6

VGA_VSYNC1 6

Confidential - Do Not Copy

ViewSonic Corporation

72

VT2430-1M

8.8. Video_Interface

YPbPr

Y-IN

Pb-IN

D517

4.7P

D518

4.7P

Y

Pb

R568
75R

R571
75R

Close to MST. IC

C530
NC/10pF

C533
NC/10pF

R566
470R

R567
47R

R569
47R

R570
47R

R572
47R

S-Video Input

P503
MINI DIN4

MINIDIN8

D515

4.7P

6
1

3

C528
1nF

C529
47nF

C553 47nF

C531
47nF

C532
47nF

C534
47nF

8
2

754

9

Near S GNDPIN Side.

RGB0-SOG

RGB0_Y+

Y_CC

RGB0_Y-

RGB0_PB+

RGB0_PB-

D516

4.7P

RGB0-SOG 6

RGB0_Y+ 6

Y_CC 6

RGB0_Y- 6

RGB0_PB+ 6

RGB0_PB- 6

R562
75R

R564
75R

C523
100p

C522

100p

L505

3.3uH 0805

L506

3.3uH 0805

R561 47R

S-LUM0 YIN_0+

C524
100p

C526
100p

R563 47R

R565 47R

S-CHR0 CIN_0+

C521 47nF

C525 47nF

C527 47nF

Near MST.IC Input Side.

YPbPr/Av
Videi In

P504

RCJ-4

453

Pr-IN

Pb-IN

261

Y-IN

CD

AB

CVBS_IN

VCOM1

P505

RCJ-4

RCA Audio Input (ADC IN)

YIN_0+ 6

VCOM1 6

CIN_0+ 6

Close to connector

D521

4.7P

RC_AUL0

D523

4.7P

C543
330pF

C549
330pF

R578
10K

R582
10K

YPbPr/DVI , Av/S
Audio In

CD

AB

261

453

RC_AUR0

RC_AUL0

RC_AUL1

RC_AUR1

R580
12K

R584
12K

Av/S Audio In

Note:Close to MST. IC

C541
1uF/0603

AUR0RC_AUR0

C546
560pF

C547
1uF/0603

AUL0

C552

Keep A_GND trace with Signal.

560pF

Keep Spacing for L/R cahnnel.
Keep trace width(12mil+).

AUR0 6

AUL0 6

Pr-IN

Pr

D519

4.7P

CVBS Input

CVBS_IN

D520

4.7P

R574
75R

L503

3.3uH 0805

C539
680pF

C536
NC/10pF

C540
330pF

R573
47R

R575
47R

C535
47nF

C537
47nF

RGB0_PR+

RGB0_PR-

Close to MST. IC

C538
47nF

CVBS1_IN

R577
75R

R576
47R

RGB0_PR+ 6

RGB0_PR- 6

CVBS1_IN 6

Audio Input

RCA Audio Input (ADC IN)

Close to connector

R579

C544
330pF

C550
330pF

10K

R583
10K

RC_AUR1

D522

4.7P

RC_AUL1

D524

4.7P

R581
12K

R585
12K

YPbPr/DVI

Note:Close to MST. IC

C542
1uF/0603

AUR1

C545
560pF

C548
1uF/0603

AUL1

C551
560pF

AUR1 6

AUL1 6

Confidential - Do Not Copy

ViewSonic Corporation

73

VT2430-1M

8.9. HDMI Interface

For CEC Leakage Protect

R517

HDMI_CEC

NC/0R

NC/0R

HDMI Connector

P501
HDMI CON

SHIELD
SHIELD

CEC/DDC GND

+5V

DDC SCL

DDC SDA

CEC
HPD

SHIELD
Dat2 shield
Dat1 shield
Dat0 shield

clk shield

SHIELD

DAT0+

DAT0-

DAT1+

DAT1-

DAT2+

DAT2-

clk+

clk-

VCLK

20
21
18
17
15
16
13
19
22
2
5
8
11
23
7
9
4
6
1
3

10
12
14

HDMI-5V

HDMI-5V
HDMI-SCL

HDMI-SDA
HDMI_CEC
HDMI-HPDIN

HDMI_RX0P
HDMI_RX0N

HDMI_RX1N
HDMI_RX2P
HDMI_RX2N

HDMI_CLKP
HDMI_CLKN

3

Q503

NC/2N7002

S

23

D

SOT

G

R519

VCC3.3V-STVCC5V-ST

VCC3.3V-ST 2,6

R516
NC/27K

R518

NC/100R

HDMI-CEC

HDMI-CEC 6

D501

D502 1p
D503 1p
D504 1p

2
1

Update CEC Circuit

NC/4.7P

R520 6R8
R521 6R8
R522 6R8
R523 6R8
R524 6R8
R525 6R8

R526 6R8
R527 6R8

HDMI-RX0P
HDMI-RX0N
HDMI-RX1PHDMI_RX1P
HDMI-RX1N
HDMI-RX2P
HDMI-RX2N

HDMI-CLKP
HDMI-CLKN

HDMI-RX0P 6
HDMI-RX0N 6
HDMI-RX1P 6
HDMI-RX1N 6
HDMI-RX2P 6
HDMI-RX2N 6

HDMI-CLKP 6
HDMI-CLKN 6

Hot-Plug Control

HDMI-5V

R529
1K 0603

HDMI-HPDIN

R533

Q504

MMBT3904

4.7K

1

2 3

HPD_CTRL

HPD_CTRL 6

6,8,10,13,15

VCC5V-ST

VCC5V-ST

DDC EEPROM

D505
BAT54C

HDMI-5V

1
2

3
4 5

I502

NC1
NC2

NC3
GND SDA

VCC

VCLK

SCL

24C22 SMD

8
7
6

HDMI_VCC

C515
100nF

HDMI_SCL
HDMI_SDA

R538
10K

R528
100R

R530
NC

R534 100R
R535 100R

R536100R
R537100R

HDMI-SCL
HDMI-SDA

DDC_SCL
DDC_SDA

R531
10K

DDC_SCL 6
DDC_SDA 6

R532
10K

Confidential - Do Not Copy

ViewSonic Corporation

74

VT2430-1M

8.10. Audio Block

Audio Interface

PHONE_R
PHONE_L
PHONE_DET

5VAMP2

5VAMP

PHONE_R
PHONE_L
PHONE_DET

5VAMP

12-Audio Interface

PC_Audio-AUL2

PC_Audio-AUR2

PC_Audio-AUL2
PC_Audio-AUR2

PC_Audio-AUL2 6
PC_Audio-AUR2 6

Audio Amp. Interface

5VAMP2
VCC5V-ST2,6,13,15

12V2

VCC3.3V-ST6,13

5VAMP
VCC5V-ST

12V

VCC3.3V-ST

5VAMP

POWER-ON/OFF-GPIO44

12V

POWER-SAVING-GPIO98

VCC3.3V-ST

13-Audio Amp. Interface

AU_DACO_0L

AU_DACO_0R

SHUT_DOWN_AUVCC5V-ST

MUTE_S/GPIO124

PHONE_R

PHONE_L

PHONE_DET

AU_DACO_1L

AU_DACO_1R

AU_DACO_0L
AU_DACO_0R

SHUT_DOWN_AU

POWER-ON/OFF-GPIO44
MUTE_S/GPIO124

POWER-SAVING-GPIO98

PHONE_R
PHONE_L
PHONE_DET

AU_DACO_1L
AU_DACO_1R

AU_DACO_0L 6
AU_DACO_0R 6

SHUT_DOWN_AU 6
POWER-ON/OFF-GPIO44 2.6

MUTE_S/GPIO124 6
POWER-SAVING-GPIO98

AU_DACO_1L 6
AU_DACO_1R 6

6

Confidential - Do Not Copy

ViewSonic Corporation

75

VT2430-1M

8.11. Audio Interface

Headphone output

PC Audio input

P602

234

101112

14

5

13

Location near phone jack

R650
10K

R729
10K

C645
560pF

0 0603

L611

L601 0 0603

R732
1K

R733
1K

C648
330pF

C649
330pF

C652
330pF

R730
12K

C666
NC

add C666,C665 080910

C650

+

47u/16V
C651

+

47u/16V

C665

NC

R731
12K

5VAMP

C647
330pF

1
9
8
7
6

Close to MST. IC

C643
1uF/0603

C644
1uF/0603

C646
560pF

PHONE_R

PHONE_L

PC_Audio-AUR2

PC_Audio-AUL2

PHONE_R 13

PHONE_L 13

PC_Audio-AUR2 6

PC_Audio-AUL2 6

PHONE JACK NORMAL CLOSE

5VAMP

R735 10K

Confidential - Do Not Copy

R734
10K

R601 0R

1

B

5VAMP 2,13

R659
NC/10K

modify C653 footprint from C0805 to C0603 and add cap 1uF 080910

C653
1uF/0603

SOT

23

2

E

Q606
NC/MMBT3904

C

R736 100R

3

C654
100nF

0: SPEAKER MODE

1: HEADPHONE MODE

PHONE_DET 13

ViewSonic Corporation

76

VT2430-1M

8.12. Audio Amp. Interface

Audio Pre-Amplifier

5VAMPP2,4,5,6

Close to MST. IC

AU_DACO_0L6

6

AU_DACO_0R

Close to MST. IC

AU_DACO_1L6

6

AU_DACO_1R

AU_DACO_0L

AU_DACO_0R

add AU_DACO_1L.R circuit 080910

AU_DACO_1L

AU_DACO_1R

5VAMP

C671 NC/100P

R616 100R

C621

33nF

C672 NC/100P

R634 100R

C628
33nF

C621.C628 from 15nF modify to 33nF 080910

R740 NC/100R

C668
NC/33nF

R738 NC/100R

C667
NC/33nF

VAF AVREF

L605

600R/1.5A L0805

C604

100uF/16V

100nF

C617

AVREF

R617 NC/4.7K

NC/1uF/0603

R621
22K

AVREF

C627

NC/1uF/0603

R635 NC/4.7K
R640
22K

modify earphone balance issue 081014

R741
NC/22K

R739

NC/22K

6

R607
10K

C605

MUTE_S/GPIO124

C606100nF

10K

R609

R615
R618

R633
R636

del R646.R647.Q605. 080910

C607

10uF/0805

R610 NC/82K

VAF

NC/7K5
NC/6.8K

R626 NC/82K

VAF

NC/7K5
NC/6.8K

R697

0R

R742

0R
R743

0R

MUTE_S/GPIO124

PVDD

pull high res(R606) from 5K1 modify to 2K 080901

R696

0R

I603A

84

3

+

1

2

-

NC/LM358/SO8

I603B

84

5

+

7

6

-

NC/LM358/SO8

AUOUTL1A

AUOUTR1A

C640
330pF

5VAMP

R648 10K

MMBT3904

R649

I602 foodprint from "SPDSO08" modify to "SO08" ; C642 cap value from 470n modify to 1uF 080901

D603

Zener/3.3V

AUOUTL0A

AUOUTR0A

Q601

10K

2K2/0603

1uF/0603

C641

330pF

C637

C638

1uF/0603

B

132

R606

R608
100K 0603

1 2

C670 NC/100P

R620

R629 100R

C669 NC/100P

R642 6.8K

R644 6.8K

C

23

SOT

E

AVDD_3.3

AVDD_3.3

C608

1uF/0603

100R

R619

10K

R638
10K

R698 NC/0R

add C663.C664 080910

R643 39K

C642
1uF/0603

L612

NC/600R/1.5A L0805

C622

1nF

C626

1nF

C663 NC/100P

C664 NC/100P

R645 39K

2

IN1

3

BYPASS

6

IN2

5

SHUTDOWN

I602 TPA6113A2

8

VDD

1

VO1

7

VO2

4

GND

12V

C655

AVDD

600R/1.5A 0805

C639

PHONE_R

PHONE_L

D602 NC/1N4148

R602 NC/1K

1 2

D601 NC/1N4148

VCC3.3V-ST 6,13

100uF/16V

100nF

C616

C618 1uF/0603

L610

R632

18K

5VAMP

12V2

VCC3.3V-ST

pull high res(R632) from 0R modify to 18K 080901

100uF/16V

12

C603

NC/330uF/16V

AVDD

C619 1uF/0603
C620 1uF/0603
C623 100nF/0603
C624 1uF/0603

C625 1uF/0603

R661 150K

5VAMP 2,12

PHONE_R 12

PHONE_L 12

AC ON/OFF Mute

Q602

1

B

2

E

NC/MMBT3906

PVDD

R660

R637

SOT

82K

0R

23

3

C

D-5 QFN32

1
2
3
4
5
6
7
8
9

R603 NC/10K

I601

PVDDREG
AVDD
INLP
INLM
VREF
INRM
INRP
AVSS
PLIMIT

C658

R604

R605
NC/10K

PVDD

NC/10u/16V

C656

+

C613 1uF/0805

32

OUTPL2

PVDDPL

OUTPR2

PVDDPR

10

1213141516

11

C631

1uF/0805
NC/10u/16V

+

PVDD

NC/1K

MUTE_N

C657

C601 1uF/0805

293031

PVSSL

OUTPL1

OUTML2

(Product ver)

OUTPR1

PVSSR

OUTMR2

C659

PVDD

NC/10u/16V

+

OUTML1

NCDRC1
NCDRC0

CKOUT
MUTEN
PROTN

SLEEPN

OUTMR1

C632

1uF/0805

NC/10u/16V

+

PVDD

262728

GAIN1
GAIN0

PVDDML

CKIN

PVDDMR

C661

1uF/0603

12V

L604 DUAL BEAD 100R

AVDD_3.3

R613 NC

R612 NC

R624 300K

R623 300K

B

SOT

3

C

23

E

MMBT3904

PHONE_DET

L603

R614 NC

R625 300K

1
2

C660

1uF/0603

R737
22K

L602 NC

NC/22uH/2.9A

R663

R641 47K

12V2

25
24
23
22

AVDD_3.3

21
20
19
18
17

Q603

SOT

3

C

MMBT3904

Q604

SOT

3

C

MMBT3904

PHONE_DET12

R611 10K

R622 NC

R627 47K

R630 10K

Q607

NC/10K

link PROTN and SLEEPN,move R628 and modify R627 from 10K to 47K, R663 from NC to 10K,add Q607 MMT3904 080901

R662

MUTE_N

1

B

23

2

E

add C660.C661.C662(1uF).R737(22K),R641 modify value from 10K to 47K 080910

1

B

C662

23

2

E

1uF/0603

PVDD

C602

+

1000u/16V LSER

SD HI ==>> AMP WORKS

SD LOW==>> SHUT DOWN

HIGH-->STAND BY ENABLE
LOW-->STAND BY
DISABLE

R631

POWER-ON/OFF-GPIO44

R628 10K

POWER-SAVING-GPIO98

SHUT_DOWN_AU

R639

10K

PH_DET

NC

10K

LB

LA

POWER-ON/OFF-GPIO44 6

VCC3.3V-ST

POWER-SAVING-GPIO98

SHUT_DOWN_AU 6

RB

L606 22uH DIP

C609
100nF/0603

C612

C611

0.47u/63V/DIP

C614
100nF/0603

C633

C634

NC/1uF/0805

C629
100nF/0603

C635
100nF/0603

NC/1uF/0805

L607 22uH DIP

6

L608 22uH DIP

RA

0.47u/63V/DIP

L609 22uH DIP

C629,C635,C614,C609 modify package from C0805 to C0603 080910

P601

4

L+

3

L-

2

R-

1

R+

CON4 P=2.5mm

Seaker
6W/8ohm

C610

10nF/0603
C61510nF/0603
C630

10nF/0603

C63610nF/0603

Confidential - Do Not Copy

ViewSonic Corporation

VT2430-1M

8.13. LVDSx2 Panel

CMO LVDS PANEL

RXE3+6
RXE3-6
RXEC+6
RXEC-6
RXE2+6
RXE2-6
RXE1+6
RXE1-6
RXE0+6
RXE0-6

RXO3+6
RXO3-6
RXOC+6
RXOC-6
RXO2+6
RXO2-6
RXO1+6
RXO1-6
RXO0+6
RXO0-6

RXE3+
RXE3­RXEC+
RXEC­RXE2+
RXE2­RXE1+
RXE1­RXE0+
RXE0-

RXO3+
RXO3­RXOC+
RXOC­RXO2+
RXO2­RXO1+
RXO1­RXO0+
RXO0-

CMO M260J3-L01:
R695 NC
R699 0R

2

PANEL-VCC

PANEL-VCC

C259

220u/16V LESR

P106

RXO0­RXO1-

RXOC+
RXO3+
RXE0+

RXE2+
RXE3+

R699 NC/0

C321

+

100nF

1
3
5
7

9
11
13
15
17
19
21
23
25
27
29

PIN 15x2 2.0mm

2
4
6
8
10
12
14
16
18
20
22
24
26
28
30

RXO0+
RXO1+
RXO2+RXO2­RXOC­RXO3­RXE0-

RXE1+RXE1­RXE2­RXEC­RXE3-RXEC+

R695 NC/0

Confidential - Do Not Copy

77

LVDS Panel ( Header Type )

CMO M220J1L01:
R695 0R
R699 0R

AUO M215HW01:
R695 NC
R699 NC

ViewSonic Corporation

VT2430-1M

8.14. USB

P205
NC/USB-A

VBUS

D-

D+

GND
SHELL
SHELL

+5V_General2,3,4,8,10

+5V_General

2.2A

1
2
3
4
5
6

1 2

L209
NC/80R 0805 6A

C317

+

NC/47u/16V

F501

t

NC/5V 0.75A

R314
NC/51K

R362 NC/5.1R

R363

I504

5

GND

6

I/04

USB_OCD_N-GPIO123

R315
NC/100K

NC/5.1R

I/02I/03

VDD

I/01

USB_OCD_N-GPIO123 6

Confidential - Do Not Copy

USB_DM
USB_DP

34
2
1

C318

NC/1nF

VCC5V-ST

VCC5V-ST 6,13,15

USB_DM 6
USB_DP 6

78

NC/AZ1045-04S

ViewSonic Corporation

79

VT2430-1M

8.15. INVERT

19V

5V

Brightness

ON/OFF

R901 4K7

F901 JP

R906

10

R905 220K

PWM/JP

C929
NC

R923

I902 NC

3 1

IN OUT

2

GND

( option)

TV

R941 10K

0

R902
NC

NC/Option

R907
150K

PWM/NC

1

C903

3

2

D902

NC

C935
47u/16V

R904
47K

Q901
3906

R903
10K

C904

C927

10n

PWM/NC

R942
0

Z902

ZD401 5.6V

C920

C936

NC

R957

PWM/NC

1M

2.2u

+19V REF

47N

R908
10K

C943
1u

2N3904/SOT23
Q901 TV

TV
OPTION
OF
POSITION
Q901

R943

5.1K

R944 100

D906 1N4148

R909

30k

R911

51K

R910
1M

R916 100

D905
1N4148

1

DRV1

2

VDDA

3

TIMER

4 13

DIM CT

5

7 10
8 9

R949 10k

SSTCMP

ISEN

OVPT ENA
NC NC

I901 OZ9938

C905

1000P

PGND

DRV2

GNDA

LCTVSEN

C913

470u/35V

16
15
14

12
116

C908

10n

C912

470u/35V

R920 0

R914

1M

33n/X7R
C944

6.8n/X7R

(33n option)

R915 240K(PWM)

Z903

5.6V

C922
47N

R948

23.2K/1%

C910

R945

5.1K
R946 100

D909 1N4148

C921

0.1u

R921 0

820P/NPO
C911

D908 1N4148

C946

0.1u

C945
1u/0603

C947

0.1u

R919

0

C948

0.1u

R918

0

C932

0.1u

4

G2

3

S

Q905
FW342

2

G1 D

S

1

4

G2

3

S

Q911

2

G1

FW342

1

S

D910BAV70/SOT

R952

C923
104

5

D

6

D

7

C902

5P/3KV/SL

C937

5P/3KV/SL

C933
104

104
C934

8

D

T902

101.2.3

74.5.6

T901

101.2.3

5

D

6

D

7

D

8

D

74.5.6

20K

D911

BAV70/SOT

R967
20K

BAV70/SOT
D912

R973
20K

R972

3K

R927

3K

R963
3K

R939 3K

R960 3K

3K
R971

R953

R962
3K

R969 3K

R970
20K

R974 3K

1 2

3K

R961
3K

R968
3K

1 2

*

CHOKE

R975
3K

D903

BAV99/SOT

L901

CHOKE

L902

P904

1
2

*

34

*

P903

1
2

P902

1
2

34

*

P901

1
2

2N7002/SOT23

Q907

C941
105

Q906

2N7002/SOT23

R976
220K

R977 270

C942
153

R959
330K

Z905

NC

BAV99/SOT

C958

5P/6KV

D915

C957
NC

R947
100

C956

103

R972 NC

R932

10K

R978 374

C959

NC

C955

5P/6KV

D914

BAV99/SOT

C954
NC

C953
NC

C925
103

C950

5P/6KV

BAV99/SOT

D913

C952
NC

C951

103

C960
NC

C940
5P/6KV
D907

BAV99/SOT

C939
NC

C938
103

C961
NC

C919
223

R928 NC

Confidential - Do Not Copy

ViewSonic Corporation

80

VT2430-1M

8.16. POWER

C821

NC

R856

NC

R813

option

+

+

C834
NC

+

C860

+

470uF/35V

R815

option

C829

+

1000uF/16V

+

C824

L803

5.2UH

L804 5.2UH

1000UF/16V

Z805
HZ6B2

R850 NC

NC

R840

Q804
2SC945P

C823

+

C825

470uF/16V

R853
NC

Z803
NC

+

470uF/16V

F801

JP

R864NC

5V

19V INV

12V

C836
10n

C835
10n

T801

D801

4KBP06M

!

-+

!

!

!

R812
910K/0805

R803
910K/0805

!

!

J802

!

C801

JUMPER

0.47uF

!

L805
ET-24

+

R839 1M

C805 150uF/400V

R844 1M

R805 1M

I801 LD7576

R806

Jumper

R833
100K 2WS

D824 NC
L806

0.5/3Ts 6x10

+

C810
10UF/50V

R804

Jumper

C814

NC

6

3

Vcc

CS

5

Drv

GND

4

8

7

HV

NC

FB

Adj

2

1

R814 10

C806
1000PF/1KV

C809

NC

R807 10

D825

NC

C807

R846

NC

R817

0R

C828 NC
D806

UF4007

D807

UF4004

+

R810
NC

FERRITE CORE 4.5mm

R857(19)

R832

100R 1/4WS

R855 33
R801 33

Q801

APO9N70

0R

L801

R809
10K

5

6
2

1

C831 2200pF

!

C813

!

C830
680P

C837
NC

NC

L807

14

9

C832NC

13
12

10.11

R859 option
D823

BEAD

GMR10H200C

R820
option

L809

D821 GMR10H125C

R821
NC

L808BEAD

D822 SB1060

D822 SB1060

C859
470uF/35V

C820

option

BEAD

C822
1000uF/16V

C833

1000u/16V

L802

ET20option

!

R802
JP

F801
T2.5AH/250V

!

!

C803
100pF

L

S801

FG

N

!

C802

!

100pF

!

R808 NC

C811 0.047uF

C808 470P

C812 103

C815 NC

103

4

3

R816
NC

10UF/50V

!

I802

TLP621

C827

R811

0.47R 2WS
R823

390

1

R842

2

+

R858
2R2

1K

C826

0.1U

I803

TL431D

R866
2R2

R843

3K

R851

1.1K/1%

R824

3.9K 1%
R827

1K

R825

1.3K 1%

R828
82K 1%

2SC945P
R862
100K

Q803

C815

R865 1K

103

R863
1K 1%

Z802

HZ18A-3

R831

1K

<>

Q802

2SC945P

R837

220R 2WS

R854
470

Z801
HZ12A-3

AC IN 100~240V

Confidential - Do Not Copy

9. PCB Layout Diagrams

ViewSonic Corporation

81

VT2430-1M

9.1. MAIN PCB TOP VIEW

Confidential - Do Not Copy

ViewSonic Corporation

82

VT2430-1M

9.2. MAIN PCB BOTTOM VIEW

Confidential - Do Not Copy

ViewSonic Corporation

VT2430-1M

9.3. CON PCB TOP VIEW

Confidential - Do Not Copy

83

ViewSonic Corporation

VT2430-1M

9.4. CON PCB BOTTOM VIEW

Confidential - Do Not Copy

84

ViewSonic Corporation

85

VT2430-1M

9.5. POWER PCB TOP VIEW

Confidential - Do Not Copy

ViewSonic Corporation

86

VT2430-1M

9.6. POWER PCB BOTTOM VIEW

Confidential - Do Not Copy

10. Exploded View And Exploded Parts List

ViewSonic Corporation

87

VT2430-1M

Confidential - Do Not Copy

ViewSonic Corporation

88

VT2430-1M

Confidential - Do Not Copy

Item

ViewSonic P/N

Ref. P/N

Q'ty1NA

2024285401P

FRONT BEZEL

VT2430 ABS 94HB G.L BLACK C

1

2NA2053760201P

LED INDIC.-PWR

N2430P UT0520T COLOR T57015

1

3NA2033154000P

IR COVER

N2430P PC GE-121R-21051

1

4NA2044275301P

FUNCTION KEY

N2430P ABS 94HB BLACK C

1

5

M-SCW-0824-0285

2084730082P

SCREW BND T+

M3X8(BND T+)

3

6NA2022281301P

CABI BACK

VT2430 ABS 94HB BLACK C USA

1

7

HW-00003031

2071872900P

BRACKET FIX

JT198QP SECC 0.8T WALL MOUNT

1

8NA2028560601P

NECK

N2430P ABS 94HB BLACK C

1

9NA2106664700P

HINGE

N2430P SECC T=2.0°~20° 50KG-CM

1

10

HW-00008139

2086240102P

SCREW P SW+

M4*10 PSW+ ZN

4

11NA2028268101P

STAND

VT2430 ABS 94HB G.L BLACK C

1

12NA2082640102P

SCREW

M4X10 P=0.7

4

13NA2039820601P

FOOT PAD

f20*2.5T SQUARE GRAIN BLK

4

14NA2039820200P

FOOT PAD

f10*2T SQUARE GRAIN BLK

2

15NA2071990600P

METAL FITTG

N2430P PANEL SECC T=0.8 USA

1

16NA2083630069P

SCREW FMS+

M3*6,M,S-TITE,F,ZN

4

17

M-SCW-0824-0285

2084730082P

SCREW BND T+

M3X8(BND T+)

2

18

M-SCW-0824-0123

2084740102P

SCREW BND T+

M4X10(BND T+)

4

19

M-SCW-0824-0811

2080003700P

SCREW SPE

ISZZTER001A M3*6L MSWR17/FZMYI

6

20

M-SCW-0824-0811

2080003700P

SCREW SPE

ISZZTER001A M3*6L MSWR17/FZMYI

4

21NA2071684000P

SHIELD PLATE

N2430P SPTE T=0.3MM USA

1

22

M-SCW-0824-0811

2080003700P

SCREW SPE

ISZZTER001A M3*6L MSWR17/FZMYI

2

23

M-SCW-0824-0285

2084730082P

SCREW BND T+

M3X8(BND T+)

2

24

M-SCW-0824-6719

2082630062P

SCREW

M3X6 P=0.5

1

25NA2071895900P

BRACKET FIX

N2430P FOR HING T=1.2MM

1

26

M-SCW-0824-6719

2082630062P

SCREW

M3X6 P=0.5

2

27NA2084740104P

SCREW BND T+

M4X10(BND T+) (BLK)

4

28NA2082630064P

SCREW

M3*6 P=0.5 BLACK

6

29NA2027273901P

DUST COVER

N2430P ABS 94HB BLACK C

1

30

CB-00008888

2427413021P

WIRE HARNESS

13/13P H/H 1007#26 L=400mm

1

31

CB-00008889

2427409020P

WIRE HARNESS

9/9P H/H 1007#24 L=150mm

1

32

CB-00008890

2427430071P

WIRE HARNESS

30/30P H/H 1792#32 L=130mm

1

33

CB-00008891

2427404070P

WIRE HARNESS

4/2+2P H/A 1007#24 L=490mm

1

34NA2391306003P-01

SPEAKER ASS'Y(RA)

6W/8ohm (L) L90*W34*H28mm DONGLI (X09040PM05-52-B)

1

34NA2391306003P-02

SPEAKER ASS'Y(RB)

6W/8ohm (L) L90*W34*H28mm YUNGTECH

1

35NA2391306004P-01

SPEAKER ASS'Y(RA)

6W/8ohm (R) L90*W34*H28mm DONGLI (X09040PM05-51-B)

1

35NA2391306004P-02

SPEAKER ASS'Y(RB)

6W/8ohm (R) L90*W34*H28mm YUNGTECH

1

Description

Exploded Parts List ( VT2430-1M )

ViewSonic Corporation

89

VT2430-1M

ViewSonic Model Number: VS12335-1M
Rev: 1a

Confidential - Do Not Copy

Item

Description

Part Name

Description

ECR/ECN

ViewSonic P/N

Ref. P/N

Location

Universal number#

B-00009345

6201-7024166111

201

B-00009346

6202-7024166111

202

B-00009347

6204-7024166111

204

Guide, CD Rom; Label]

Control;Power Cord]

ViewSonic Corporation

90

VT2430-1M

11. Recommended Spare Parts List

ViewSonic Model Number: VS12335-1M
Serial No. Prefix: R4S
Rev: 1a

1 AC POWER CORD USA WALL 1.83M BLACK A-00005362 2427130046P P951

Accessories: [Adapter, Remote

2 REMOTE CONTROL ViewSonic NX1932W & NX2232W ATSC A-00008204 2419200161P H901
3 PCB ASS'Y BLOCK (MAIN)

PC Board Assembly: [All

4 PCB ASS'Y BLOCK (CON)

PCBA]

5 PCB ASS'Y BLOCK (POWER)
6 BEZEL ASS'Y N2430P ABS 94HB BLACK C C-00009216 2603308974

Cabinets: [Front Panel, All

7 CABI BACK ASSY N2430P ABS 94HB BLACK C C-00009217 2603408173

Covers, Base Assembly]

8 STAND ASSY VT2430 ABS 94HB G.L BLACK C C-00009218 2603207447
9 WIRE HARNESS 13/13P H/H 1007#26 L=400mm CB-00008888 2427413021P P703

Cables: [All Cables]

10 WIRE HARNESS 9/9P H/H 1007#24 L=150mm CB-00008889 2427409020P P812
11 WIRE HARNESS 30/30P H/H 1792#32 L=130mm CB-00008890 2427430071P P981
12 WIRE HARNESS 4/2+2P H/A 1007#24 L=490mm CB-00008891 2427404070P P988

Documentation: [Quick Start

13

Electronic Components: [CRT-

EEPROM, Fly Back
Transformer, Microprocessor]
[LCD TV-Panel]

14
15 CARTON BOX VIEWSONIC VT2430-1M VS12335-1M P-00009322 2011124001P 6P01

Packing Material: [Box, Foam,

16 POLYFOAM N2430P (R) EPS P-00009323 2012114500P 6P20

Bags]

17 POLYFOAM N2430P(L) EPS P-00009324 2012114600P 6P21

OWNER GUIDE ASSY N2430P-1M WIZARD VS12335-1M CMO DC-00009276 2604208133

LCD PANEL M236H1-L01 (A) CMO (2/5/5 , ND 8%) E-00009190 2212018900P V901

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

Remark 1:
Remark 2:

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

RECOMMENDED SPARE PARTS LIST (VT2430-1M)

Confidential - Do Not Copy

Item

ViewSonic P/N

Ref. P/N

Location

Universal number#

Q'ty

1

B-00009346

6202-7024166111

PCB ASS'Y BLOCK (CON)

12B-00009347

6204-7024166111

PCB ASS'Y BLOCK (POWER)

13NA

2434420400P

AL SHIELDING TAPE

W40*L40 AL

14CB-00008888

2427413021P

WIRE HARNESS

13/13P H/H 1007#26 L=400mm

15CB-00008889

2427409020P

WIRE HARNESS

9/9P H/H 1007#24 L=150mm

16CB-00008890

2427430071P

WIRE HARNESS

30/30P H/H 1792#32 L=130mm

17CB-00008891

2427404070P

WIRE HARNESS

4/2+2P H/A 1007#24 L=490mm

18E-00009190

2212018900P

LCD PANEL

M236H1-L01 (A) CMO (2/5/5 , ND 8%)

19NA

2391306003P-01

SPEAKER ASS'Y

6W/8ohm (L) L90*W34*H28mm DONGLI (X09040PM05-54-B)

110NA

2391306003P-02

SPEAKER ASS'Y

6W/8ohm (L) L90*W34*H28mm YUNGTECH

111NA

2391306004P-01

SPEAKER ASS'Y

6W/8ohm (R) L90*W34*H28mm DONGLI (X09040PM05-53-B)

112NA

2391306004P-02

SPEAKER ASS'Y

6W/8ohm (R) L90*W34*H28mm YUNGTECH

113M-SCW-0824-0285

2084730082P

SCREW BND T+

M3X8(BND T+)

414M-SCW-0824-0285

2084730082P

SCREW BND T+

M3X8(BND T+)

315NA

2504100800P

PLASTIC TAPE

PL-CELLONO.60

160016NA

2504500200P

FASTENING TAPE

MASKING TAPE,18M/M (WIDTH)

56717NA

2504200700P

ADHESI TAPE

3M 1350(b) 25*80

42018NA

2504100900P

PLASTIC TAPE

PL-CELLONO.75

24519C-00009216

2603308974

BEZEL ASS'Y

N2430P ABS 94HB BLACK C

120NA

2071990600P

METAL FITTG

N2430P PANEL SECC T=0.8 USA

121NA

2083630069P

SCREW FMS+

M3*6,M,S-TITE,F,ZN

422M-SCW-0824-0285

2084730082P

SCREW BND T+

M3X8(BND T+)

223M-SCW-0824-0123

2084740102P

SCREW BND T+

M4X10(BND T+)

424M-SCW-0824-0811

2080003700P

SCREW SPE

ISZZTER001A M3*6L MSWR17/FZMYI

625M-SCW-0824-0811

2080003700P

SCREW SPE

ISZZTER001A M3*6L MSWR17/FZMYI

426NA

2071684000P

SHIELD PLATE

N2430P SPTE T=0.3MM USA

127M-SCW-0824-0811

2080003700P

SCREW SPE

ISZZTER001A M3*6L MSWR17/FZMYI

228M-SCW-0824-0285

2084730082P

SCREW BND T+

M3X8(BND T+)

229M-SCW-0824-6945

2080004000P

SCREW SPE

STAND-OFF HEX #4-40UNC H5*5*7L

230M-SCW-0824-6719

2082630062P

SCREW

M3X6 P=0.5

131NA

2071895900P

BRACKET FIX

N2430P FOR HING T=1.2MM

132M-SCW-0824-6719

2082630062P

SCREW

M3X6 P=0.5

233NA

2072467100P

INSULATOR

L110*W55*T0.5 mm

134A-00008204

2419200161P

REMOTE CONTROL

ViewSonic NX1932W & NX2232W ATSC

135A-00005362

2427130046P

AC POWER CORD

USA WALL 1.83M BLACK

136C-00009218

2603207447

STAND ASSY

VT2430 ABS 94HB G.L BLACK C

137C-00009217

2603408173

CABI BACK ASSY

N2430P ABS 94HB BLACK C

138NA

2603807190

NECK ASSY

N2430P ABS 94HB BLACK C

139DC-00009276

2604208133

OWNER GUIDE ASSY

N2430P-1M WIZARD VS12335-1M CMO

140HW-00008139

2086240102P

SCREW P SW+

M4*10 PSW+ ZN

441NA

2084740104P

SCREW BND T+

M4X10(BND T+) (BLK)

442NA

2082630064P

SCREW

M3*6 P=0.5 BLACK

643NA

2027273901P

DUST COVER

N2430P ABS 94HB BLACK C

144P-00009322

2011124001P

CARTON BOX

VIEWSONIC VT2430-1M VS12335-1M

145NA

2055632329P

LABEL

VT2430-1M VS12335-1M (M) CMO USA

146NA

2055636109P

LABEL

VT2430-1M VS12335-1M SMALL LABEL

147M-LB-0813-0856

2055613379P

LABEL

VIEWSONIC CONTAINER LABEL

0.0248M-LB-0813-0530

2055617101P

LABEL

10*20 HI-POT TESTED OK

149M-LB-0813-0959

2055613392P

LABEL

VSC HIGH VOLTAGE WARNING LABEL

150P-00009323

2012114500P

POLYFOAM

N2430P (R) EPS

151P-00009324

2012114600P

POLYFOAM

N2430P(L) EPS

152NA

2055135492P

LABEL

VT2430 -1M VS12335-1M CMO USA

153P-00008950

2013054065P

POLYETHY BAG

800x800mm EPE/T=0.5mm+HDPE/T=0.02mm 26"

154P-00008935

2011100130P

CARTON BOX

1125*1125*8 (MM)

0.02

ViewSonic Model Number: VS12335-1M

ViewSonic Corporation

91

VT2430-1M

Rev: 1a

BOM LIST ( VT2430-1M )

Description

Confidential - Do Not Copy

* Reader’s Response*

ViewSonic Corporation

92

VT2430-1M

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

Assessment

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

Unit Excellent Good Fair Bad

1. Precautions and Safety Notices

2. Specification

3. Front Panel Function Control Description

4. Circuit Description

5. Adjusting Procedure

6. Trouble Shooting Flow Chart

7. Block Diagram

8. Schematic Diagrams

9. PCB Layout Diagrams

10. Exploded View And Exploded Parts List

11. Recommended Spare Parts List

B. Are you satisfied with this Service Manual?

Item Excellent Good Fair Bad

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 dada:

Name: Title:
Company:
Add:
Tel: Fax:
E-mail:

After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile
1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes
([email protected]

)

Confidential - Do Not Copy