Viewsonic VG720-1 Service Manual 1a

Service Manual

ViewSonic VG720-1

Model No. VS10791-1W

17” Color TFT LCD Display

ViewSonic

(VG720-1_SM Rev. 1a Dec. 2005)



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

Copyright

Copyright © 2005 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.

Disclai mer

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

1a 12/08/2005 Initial release Jamie Chang

Description of Changes Editor

Viewsonic Corporation i Confidential - Do Not Copy VG720-1

TABLE OF CONTENTS

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. Recommended Spare Parts List

8. Exploded View And Exploded Parts List

9. Block Diagram

10. Schematic Diagrams

11. PCB Layout Diagrams

1
4
7

13

22

42
43

54
64

65
72

Viewsonic Corporation ii Confidential - Do Not Copy VG720-1

1. Precautions And Safety Notices

1.1 SAFETY PRECAUTIONS

This monitor is manufactured and tested on a ground principle that a user’s safety comes
first. However, improper use or installation may cause damage to the monitor as well as
the user. Carefully go over the following WARNINGS before installing and keep this guide
handy.

WARNINGS

．This monitor should be operated only at the correct power sources indicated on the label

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

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

．Do not try to repair the monitor your self as it contains no user-serviceable parts. This

monitor should only be repaired by a qualified technician.

．Do not remove the monitor cabinet. There is high-voltage parts inside that may cause

electric shock to human bodies, even when the power cord is unplugged.

．Stop using the monitor if the cabinet is damaged. Have it checked by a service technician.
．Put your monitor only in a clean, dry environment. If it gets wet, unplug the power cable

immediately and consult your service technician.

．Always unplug the monitor before cleaning it .Clean the cabinet with a clean, dry cloth.

Apply non-ammonia based cleaner onto the cloth, not directly onto the glass screen.

．Keep the monitor away from magnetic objects, motors, TV sets, and transformer.
．Do not place heavy objects on the monitor or power cord.

1.2 PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety visual inspections
and the protection afforded by them cannot necessarily be obtained by using replacement
components rated for higher voltages, wattage, etc. Before replacing any of these
components read the parts list in this manual carefully. The use of substitute replacement
parts which do not have the same safety characteristics as specified in the parts list may
create shock, fire ,or other hazards.

1.3 SERVICE NOTES

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

2. When replacing a high wattage resistor(more than 1W of metal oxide film resistor) in
circuit board, keep the resistor about 5mm away from circuit board.

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

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

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

ViewSonic Corporation Confidential

1

-

Do Not Copy VG720-1

1.4 HANDING AND PLACING METHODS

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.”

ViewSonic Corporation Confidential

2

-

Do Not Copy VG720-1

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.”

Place the monitor on the lap, the panel
surface must be upwards.

The panel is placed facedown on the lap. That
may cause “Mura.”

ViewSonic Corporation Confidential

3

-

Do Not Copy VG720-1

2. Specification

2.1 PRODUCT SPECIFICATIONS

LCD Panel 17.0” TFT

Recommend Resolution 1280 x1024@60Hz

Pixel Dimension 0.264(H) x 0.264(V)mm

LCD Display Color 16.2M Colors (RGB 6-bit+FRC data)

Viewing Angle

Horizontal: 140
Vertical: 125 °

°

Contrast Ratio 600：1 (Typ.)

Brightness 270 cd/㎡(Typ.)

Response Time 8ms(Typ.)

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

Maximum Pixel Clock 135 MHz

Horizontal Frequency 30 – 82 kHz

Vertical Refresh Rate 50 – 75 Hz.

Temperature

Operating: 0°C to +40°C
Storage: -20°C to +60°C

Energy Star compliant VESA

Power Management

DPMS compatible
<1 W

Power

Input Voltage : 90V~264V
Consumption: 48 Watts(Max.) 43 Watts(Typ.)

ViewSonic Corporation Confidential

4

-

Do Not Copy VG720-1

2.2 INTERFACE DESCRIPTION

D-SUB 15 PIN CONNECTOR

15

6

11 15

10

SIGNAL LEVEL

Pin Number Pin Function

1 Red video input

2 Green video input

3 Blue video input

4 No Connection

5 Ground

6 Red video ground

7 Green video ground

8 Blue video ground

9 +5V

10 H/V sync ground

11 No co n nection

12 (SDA)

13 Horizontal sync (Composite sync)

14 Vertical sync

15 (SCL)

ViewSonic Corporation Confidential

5

-

Do Not Copy VG720-1

DVI-D 24 PIN CONNECTOR

Pin No. Signal Name Description

1 RX2- TMDS negative differential input, channel 2

2 RX2+ TMDS positive differential input, channel 2

3 GND Logic Ground

4 Reserved 4 Reserved. No connection

5 Reserved 5 Reserved. No connection

6 DDC-CLK DDC2B Clock

7 DDC-DAT DDC2B Data

8 Reserved 8 Reserved. No connection

9 RX1- TMDS negative differential input, channel 1

10 RX1+ TMDS positive differential input, channel 1

11 GND Logic Ground
12 Reserved 12 Reserved. No connection

13 Reserved 13 Reserved. No connection

14 VCCX Power

15 GND Logic Ground

16 SENS SENSE Pin, Pull High

17 RX0- TMDS negative differential input, channel 0

18 RX0+ TMDS positive differential input, channel 0

19 GND Logic Ground

20 Reserved 20 Reserved. No connection

21 Reserved 21 Reserved. No connection

22 GND Logic Ground

23 RXC+ TMDS positive differential input, reference clock

24 RXC- TMDS negative differential input, reference clock

ViewSonic Corporation Confidential

6

-

Do Not Copy VG720-1

3. Front Panel Function Controls And Indicators

Mute： Audio Mute button turns the sound off

Volume+/ Volume-：Decreases or increases volume

Button 1：Scrolls through menu options and adjusts the displayed

control. Also a shortcut to display the Contrast adjustment control
screen.

[▲]、[▼]：Displays the control screen for the highlighted control. Also

toggles between two controls on some screens. Also a shortcut to toggle
analog and digital connection.

Button 2：Displays the control screen for the highlighted control. Also toggles
between two controls on some screens. Also a shortcut to toggle analog and
digital connection.

Power：Standby Power On/Off

Power LED (Front Head)

Green – ON
Orange – Active Off
Dark = Soft Power Switch OFF

ViewSonic Corporation Confidential

7

-

Do Not Copy VG720-1

Do the following to adjust the display setting:

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

NOTE: All OSD menus and adjustment screens disappear automatically after about 15

seconds. This is adjustable through the OSD timeout setting in the setup menu.

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

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

shown below appears.

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

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

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

The following tips may help you optimize your display:

• Adjust the computer's graphics card so that it outputs a 1280 x 1024 @ 60Hz video
signal to the LCD display. (Look for instructions on “changing the refresh rate” in the
graphics card's user guide.)

• If necessary, make small adjustments using H. POSITION and V. POSITION until the
screen image is completely visible

. (The black border around the edge of the screen

should barely touch the illuminated “active area” of the LCD display.)

ViewSonic Corporation Confidential

8

-

Do Not Copy VG720-1

Main Menu Controls

Adjust the menu items shown below by using the up

Control

Explanation

Auto Image Adjust sizes and centers the screen image automatically.

Contrast adjusts the difference between the image background (black level)

and the foreground (white level).

Brightness adjusts background black level of the screen image.

Input Select allows the user to toggle between an analog and a digital signal.

Audio Adjust
Volume increases the volume, decreases the volume, and mutes the audio.
Mute temporarily silences audio output.

and down buttons.

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

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

6500K-Adds red to the screen image for warmer white and richer red.
5400K-Adds green to the screen image for a darker color.
User Color Individual adjustments for red (R), green (G), and blue (B).

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

2. To adjust selected color, press

▼ and ▲.

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

ViewSonic Corporation Confidential

9

-

Do Not Copy VG720-1

Information displays the timing mode (video signal input) coming from the
graphics card in the computer, the LCD model number, the serial number, and

the ViewSonic

®

website URL. See your graphics card’s user guide for
instructions on changing the resolution and refresh rate (vertical frequency).
NOTE: VESA 1280 x 1024 @ 60Hz (recommended) means that the resolution
is 1280 x 1024 and the refresh rate is 60 Hertz.

Manual Image Adjust Sub-menu

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

H./V. Position (Horizontal/Vertical Position) moves the screen image left or

right and up or down.

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

NOTE: Try Auto Image Adjust first.

Sharpness adjusts the clarity and focus of the screen image.

ViewSonic Corporation Confidential

10

-

Do Not Copy VG720-1

Setup Menu displays the menu shown below:

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

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

If you enable the Resolution Notice shown above and your computer is set at
a resolution other than 1280 x 1024, the following screen appears.

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

OSD Timeout sets the length of time the OSD screen is displayed. For

example, with a “30 second” setting, if a control is not pushed within 30
seconds, the display screen disappears.

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

Memory Recall returns the adjustments back to factory settings if the display

is operating in a factory Preset Timing Mode listed in the Specifications of this
manual.

ViewSonic Corporation Confidential

11

-

Do Not Copy VG720-1

SHORT CUTS FUNCTION FROM THE BUTTONS

[1]

Main Menu

[2]

[▼] or [▲]

[▼] + [▲]

[;+] or [;-]

[;+] + [;X]

[1] + [2]

[1] + [;X]

[2] + [▼]

[1] + [▲]

Input toggle (Analog or Digital).

To immediately activate Contrast menu. It should be
change to Brightness OSD by push button [2]

recall both of Contrast and Brightness to default

To immediately activate Volume menu for audio volume.

Recall volume to default

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

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

• Power Button Lock: Press and hold “[2], & ▼” for 10
seconds. If the power button is pressed the message

Power Button Locked will display for 5 seconds. With or

without this setting, after a power failure, your LCD
display’s power will automatically turn ON when power is
restored.

• Power Button Unlock: Press and hold “[2], & ▼” again
for 10 seconds.

• OSD Lock: Press and hold "[1], & (▲)" for 10 seconds.

If any buttons are pressed the message OSD Locked will

display for 5 seconds.

• OSD Unlock: Press and hold “[1], & ▲” again for 10
seconds.

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

ViewSonic Corporation Confidential

12

-

Do Not Copy VG720-1

4. Circuit Description

4.1 LCD MONITOR DESCRIPTION

The LCD MONITOR will contain a Main Board, an Power Board, Key Board which

house the flat panel control logic, brightness control logic and DDC.

Monitor Block Diagram

Power Board

(Include: adapter, inverter)

AC-IN

100V-240V

4.2 MAIN BOARD BLOCK FUNCTION DESCRIPTION

The main board contains panel control logic, brightness control logic, DDC and DC

convert DC circuit and so on.

R
G
B
H

V
SDA
SCL

CCFL Drive.

Key Board

EPROM EPROM

Flat Panel and
CCFL backlight

Main Board

HOST Computer

PWPC board

TSUM56AK

OSC

RS232 Connector
For white balance
adjustment in factory
mode

Video signal, DDC

Backlight and Panel

Keyboard

ViewSonic Corporation Confidential

13

-

Do Not Copy VG720-1

4.3 PWPC BOARD BLOCK FUNCTION DESCRIPTION

PWPC board combines to adapter and inverter, Adapter which commonly consists
of bridge rectifier and filter, start circuit, PWM control circuit, protection circuits and
convert to 12V, 5V DC voltage by input 90V-240V AC voltage that provide power supply
for each chips in the main board and inverter. Inverter is DC TO AC circuit. It changes
the 12v DC of power supply to about 600-800v AC that drives the backlight. It mostly
consists of starting circuit, PWM controller, DC changing circuit, LC surging circuit,
output circuit and protection circuit etc.

AC input

EMI filter

Bridge
Rectifier
and Filter

Transformer

Rectifier
CMOS

Start Circuit
R903, R904,R905

5V

Lamp

OSC and
Output
Circuit

Feedback
Circuit

PWM

Control IC

Over
Voltage

DC Convert
Circuit

MOSFET
Q203

PWM
Control IC

Over
Vol tage
Protect

12V

ON/OF

ON/OFF
Control

DIM

CN902

ViewSonic Corporation Confidential

14

-

Do Not Copy VG720-1

4.4 INTRODUCTION OF IC

STUM56AK(U401): integrate ADC, OSD, SCALER, MCU, LVDS, convert analog RGB

into digital and room and shrink scaling output to LCD panel.

PIN Function:

Pin Symbol Description

70 SDO SPI flash serial data output; Input w/5V-tolerant
71 CSZ SPI flash chip select; output
72 SCK SPI flash serial select; output
73 SDI SPI flash serial data input; output
65 DDCA_SDA/RS232_TX DDC data for analog interface; 4mA driving

strength/UART transmitter/GPIO; I/O w/5V-tolrant

66 DDCA_SDA/RS232_RX DDC data for analog interface/UART

transmitter/GPIO;Input w/5V-tolrant

36 DDCD_SDA DDC data for DVI interface; 4mA driving strength;

I/O w/5V-tolerant
37 DDCD_SCL DDC clock for DVI interface; Input w/5V-tolerant
19 RST Chip reset; High reset; Input w/5V-tolerant
22 RSTN Chip reset; Low reset; Input w/5W-toerant

11 VCTRL Regulator control; Output
63 HSYNCO Analog HSYNC input
64 VSYNCO Analog VSYNC input
62 REFP Internal ADC top de-coupling pin
61 REFM Internal ADC bottom de-coupling pin
51 REXT

External resistor 390 ohm to AVDD＿DVI

21 PWM1 PWM1; 4mA driving strength; Output
29 PWM0 PWM0; 4mA driving strength; Output

4 BYPASS For External Bypass Capacitor
33 XIN Xin; Crystal Oscillator Input
34 XOUT Xout; Crystal Oscillator Output

44、50 AVDD＿DVI

60
52
34

14、67、95、

103、115

13、38、41、

AVDD＿ADC

AVDD＿PLL

AVDD＿MPLL

VDDP Digital Output Power 3.3V

VDDC Digital Core Power 1.8V

DVI Power 3.3V
ADC Power 3.3V
PLL Power 3.3V
MPLL Power 3.3V

47、96、116

AIC1084-33PM (U702): DC power convert, used to 5v convert 3.3v.

LT1117-18(U701): DC power convert, used to 5v convert 3.3v.

ViewSonic Corporation Confidential

15

-

Do Not Copy VG720-1

TPA3003D2 (U601): The TPA3003D2 is a audio amplifier IC,3-W efficient, driving

speakers as low as 8

, range of gain from -40dB to 36 dB. The function of

each pin and the inside circuit diagram are as follows:

Circuit Diagram

ViewSonic Corporation Confidential

16

-

Do Not Copy VG720-1

PIN Function

TERMINAL

NO. NAME

I/O DESCRIPTION

AGND 9,10,26 ­AVcc 33 ­AVDD 29 O
AVDDREF 7 O
BSLN 13 I/O
BSLP 24 I/O
BSRN 48 I/O
BSRP 37 I/O

COSC 28 I/O

FADE 30 I

LINN 6 I
LINP 5 I
LOUTN 16,17 O
LOUTP 20,21 O
MUTE 34 I
NC 31,32,35 ­PGNDL 18,19 ­PGNDR 42,43 -

PVVCCL 14,15 -

PVVCCL 22,23 -

PVCCR 38,39 -

PVCCR 46,47 -

REFGND 12 -

RINP 3 I
RINN 2 I
ROSC 27 I/O
ROUTN 44,45 O
ROUTP 40,41 O

SD 1 I

VCLAMPL 25 ­VCLAMPR 36 ­VOLUME 11 I
VREF 8 I

V2P5 4 O

Analog ground for digital/analog cells in core
High-voltage analog power supply (8.5V to 14V)
5-V Regulated output
5-V Reference output-provided for connection to adjacent VREF terminal.
Bootstrap I/O for left channel, negative high-side FET
Bootstrap I/O for left channel, positive high-side FET
Bootstrap I/O for right channel, negative high-side FET
Bootstrap I/O for right channel, positive high-side FET
I/O for charge/discharging currents onto capacitor for ramp generator triangle wave

biased at V2P5
Input for controlling volume ramp rate when cycling SD or during power-up. A logic
low on this pin places the amplifier in fade mode. A logic
high on this pin allows a quick transition to the desired volume setting.
Negative differential audio input for left channel

Positive differential audio input for left channel
Class-D 1/2-H-bridge negative output for left channel
Class-D 1/2-H-bridge positive output for left channel
A logic high on this pin disables the outputs. A low on this pin enables the outputs.
Not internally connected
Power ground for left channel H-bridge
Power ground for right channel H-bridge
Power supply for left channel H-bridge(tied to pins 22 and 23 internally), not

connected to PVCCR or AVcc
Power supply for left channel H-bridge(tied to pins 14 and 15 internally), not
connected to PVCCR or AVcc
Power supply for right channel H-bridge(tied to pins 46 and 47 internally), not
connected to PVCCL or AVcc
Power supply for right channel H-bridge(tied to pins 38 and 39 internally), not
connected to PVCCL or AVcc
Ground for gain control circuitry. Connect to AGND. If using a DAC to control the
volume, connect the DAC ground to this terminal.
Positive differential audio input for right channel

Negative differential audio input for right channel
Current setting resistor for ramp generator. Nominally equal to 1/8*Vcc
Class-D 1/2-H-bridge negative output for right channel
Class-D 1/2-H-bridge positive output for right channel
Shutdown signal for IC (low=shutdown, high=operational). TTL logic levels with

compliance to Vcc.
Internally generated voltage supply for left channel bootstrap capacitors.

Internally generated voltage supply for right channel bootstrap capacitors.
DC voltage that sets the gain of the amplifier.
Analog reference for gain control section.

2.5-V Reference for analog cells, as well as reference for unused audio input when
using single-ended inputs.

ViewSonic Corporation Confidential

17

-

Do Not Copy VG720-1

NCP1203D60R2G (IC901): PWM control, high-voltage startup current. The circuit unit
has functions such as over-current protection, over-voltage protection, output
short-circuit protection and etc. The function of each pin and the inside circuit diagram
are as follows:

Pin

No.

Pin

Name

1 Adj

2 FB

3 CS Current sense input

Function Pin Description

Adjust the skipping

peak current

Sets the peak

current setpoint

This pin lets you adjust the level at which the cycle
skipping process takes place. Shorting this pin to ground,
permanently disables the skip cycle feature.

By connecting an optocoupler to this pin, the peak curre
setpoint is adjusted accordingly to the output power
demand. Skip cycle occurs when FB falls below Vpin1.

This pin senses the primary current and routes it to the

internal comparator via an L.E.B.
4 GND The IC ground −
5 Drv Driving pulses The driver’s output to an external MOSFET.

6 VCC Supplies the IC

7 NC −

Ensure a clean and

8 HV

lossless startup

sequence

This pin is connected to an external bulk capacitor of

typically 22 F.

This unconnected pin ensures adequate creepage

distance.

Connected to the high−voltage rail, this pin injects a

constant current into the VCC capacitor during the startup

sequence.

nt

ViewSonic Corporation Confidential

18

-

Do Not Copy VG720-1

TL1451 (IC201): PWM control, voltage range for working: 3.6~35V, Has such functions

as short-voltage protection, Over-voltage protection, over-current protection and
etc. The function of each pin and the circuit diagram inside are as follows:

Pin Symbol Description Pin Symbol Description

1 CT External timing capacitor 9 VCC Power supply

2 RT External timing resistor 10 2OUT Output 2

3 1IN+ Positive input for error amplifier 1 11 2DTC Output 2 dead time/soft start setting

4 1IN- Positive input for error amplifier 2 12 2FBK Error amplifier 2 output

5 1FBK Error amplifier 1 output 13 2IN+ Positive input for error amplifier

6 1DTC

7 1OUT Output 1 15 SCP Timing latch setting

8 GND Ground 16 REF Reference voltage output (2.5v)

Output 1 dead time/soft start
setting

14 2IN- Positive input for error amplifier

ViewSonic Corporation Confidential

19

-

Do Not Copy VG720-1

4.5 POWER BLOCK FUNCTION DESCRIPTION

Inverter Block Function

ViewSonic Corporation Confidential

20

-

Do Not Copy VG720/B

Power Block Function

ViewSonic Corporation Confidential

21

-

Do Not Copy VG720/B

5. Adjustment Procedure

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. FUNCTIONS DESIGNATION

1. White Balance Function Key

2. Geometry Function Key

5.3 ALIGNMENT PROCEDURES

Approximately 30 minutes should be allowed for warm up before proceeding
White-Balance adjustment.

1. Adjust of White Balance

1.)How to do the Chroma-7120 MEM .Channel setting

A、Reference to chroma 7120 user guide
B、Use “ SC” key and “ NEXT” key to modify xyY value and use “ID” key to modify the

TEXT description Following is the procedure to do white-balance adjust

2.)Setting the color temp. You want

A、MEM.CHANNEL9 ( 9300 color):
9300 color temp. parameter is Wx = 0.283 ±0.03;Wy = 0.298 ±0.03;

Y = 250 ±20 cd/m

B、MEM.CHANNEL10 ( 6500 color):

6500 color temp. parameter is Wx = 0.313±0.03;Wy = 0.329 ±0.03;
Y = 260 ±20 cd/m

C、MEM.CHANNEL 11 ( 5400 color):

5400 color temp. parameter is Wx = 0.335±0.03;Wy = 0.350 ±0.03;
Y = 250 ±20 cd/m

D、MEM.CHANNEL10 ( SRGB color):

6500 color temp. parameter is Wx = 0.313±0.03;Wy = 0.329 ±0.03;
Y = 220 ±20 cd/m

2 ,

2,

2,

2,

ViewSonic Corporation Confidential

22

-

Do Not Copy VG720-1

3.)Into factory mode of VG720

A、First Power off, then press Switch 2 button along with press Power button will activate

the factory mode, then MCU will do AUTO LEVEL automatically. Meanwhile press
MENU the OSD screen will located at LEFT TOP OF PANEL.

4.)Bias adjustment :

Set the Contrast

Adjust the Brightness

to 70

to 100.

5.)Gain adjustment :
Move cursor to “-F-” and press MENU key

A、Adjust 9300 color-temperature

(1)、Switch the Chroma-7120 to RGB-Mode (with press “MODE” button )
(2)、Switch the MEM. channel to Channel 9 ( with up or down arrow on chroma 7120 )
(3)、The LCD-indicator on chroma 7120 will show x = 0.283 ±0.03, y =0.298 ±0.03,

2

Y = 250 ±20 cd/m

(4)、Adjust the RED of color1 on factory window until chroma 7120 indicator reached

the value R=100

(5)、Adjust the GREEN of color1 on factory window until chroma 7120 indicator reached

the value G=100

(6)、Adjust the BLUE of color1 on factory window until chroma 7120 indicator reached

the value B=100

(7)、Repeat above procedure ( item 4,5,6) until chroma 7120 RGB value meet the

tolerance =100±5

B、Adjust 6500 color-temperature

(1)、Switch the chroma-7120 to RGB-Mode (with press “MODE” button )
(2)、Switch the MEM .channel to Channel 10( with up or down arrow on chroma 7120 )
(3)、The LCD-indicator on chroma 7120 will show x = 0.313 ±0.03, y = 0.329 ±0.03, Y =

2

260 ±20 cd/m

(4)、Adjust the RED of color3 on factory window until chroma 7120 indicator reached

the value R=100

(5)、Adjust the GREEN of color3 on factory window until chroma 7120 indicator reached

the value G=100

(6)、Adjust the BLUE of color3 on factory window until chroma 7120 indicator reached

the value B=100

(7)、Repeat above procedure ( item 4,5,6) until chroma 7120 RGB value meet the

tolerance =100±5

ViewSonic Corporation Confidential

23

-

Do Not Copy VG720-1

C、Adjust 5400 color-temperature

(1) Switch the chroma-7120 to RGB-Mode (with press “MODE” button )

(2)、Switch the MEM .channel to Channel 11( with up or down arrow on chroma 7120 )
(3)、The LCD-indicator on chroma 7120 will show x = 0.335 ±0.03, y = 0.350 ±0.03, Y =

2

250 ±20 cd/m

(4)、Adjust the RED of color3 on factory window until chroma 7120 indicator reached the

value R=100

(5)、Adjust the GREEN of color3 on factory window until chroma 7120 indicator reached

the value G=100

(6)、Adjust the BLUE of color3 on factory window until chroma 7120 indicator reached

the value B=100

(7)、Repeat above procedure ( item 4,5,6) until chroma 7120 RGB value meet the

tolerance =100±5

D、Adjust SRGB color-temperature

(1)、Switch the chroma-7120 to RGB-Mode (with press “MODE” button )
(2)、Switch the MEM .channel to Channel 10( with up or down arrow on chroma 7120 )
(3)、The LCD-indicator on chroma 7120 will show x = 0.313 ±0.03, y = 0.329 ±0.03, Y =

2

220 ±20 cd/m

(4)、Adjust the RED of color3 on factory window until chroma 7120 indicator reached

the value R=100

(5)、Adjust the GREEN of color3 on factory window until chroma 7120 indicator reached

the value G=100

(6)、Adjust the BLUE of color3 on factory window until chroma 7120 indicator reached

the value B=100

(7)、Repeat above procedure ( item 4,5,6) until chroma 7120 RGB value meet the

tolerance =100±5

E、Press reset key and Turn the Power-button “off to on” to quit from factory mode.

2. Geometry

1).Set cross-hatch pattern and preset timing as timing table listed.

2).Change to each mode in turn and wait for the monitor finish auto-alignment and save

press before change to next mode.

3).Until all of modes are adjusted,exit OSD menu and press POWER OFF to exit factory
mode.

ViewSonic Corporation Confidential

24

-

Do Not Copy VG720-1

5.4 Factory Defaults

Item Defaults Item Defaults
Contrast 70% Sharpness 33%
Brightness 100% OSD H. Position 50%
Volume 50% OSD V. Position 50%
Balance 50% OSD Time Out 15 Sec
Bass 50% OSD Background On
Treble 50% OSD PIVOT Off
Color Temperature 6500K Resolution Notice Enabled
720x400/640x400 720x400

5.5 Function Test

1 Product: 17” LCD Monitor

2 Test Equipment: Color Video Signal & Pattern (or PC with SXGA resolution and a

sound card)

3 Test Condition: Before function test and alignment, each LCD Monitor should be

warmed up for at least 30 minutes with the following conditions:

(a)In room temperature,

(b) With full-white screen, RGB, and Black

(c) With cycled display modes,

640*480 (H=43.27kHz, V=85Hz)

800*600 (H=53.7kHz, V=85Hz)

1024*768 (H=68.67kHz, V=85Hz)

1280*1024 (H=79.97kHz, V=75Hz)

4 Test Display Modes & Pattern

Compatible Modes

Analog Digital

640 x 350 @ 70Hz, 31.5kHz
640 x 400 @ 70Hz, 31.5kHz
640 x 480 @ 60Hz, 31.5kHz
640 x 480 @ 67Hz, 35.0kHz
640 x 480 @ 72Hz, 37.9kHz
640 x 480 @ 75Hz, 37.5kHz
720 x 400 @ 70Hz, 31.5kHz
800 x 600 @ 56Hz, 35.1kHz
800 x 600 @ 60Hz, 37.9kHz
800 x 600 @ 75Hz, 46.9kHz
800 x 600 @ 72Hz, 48.1kHz
832 x 624 @ 75Hz, 49.7kHz
1024 x 768 @ 60Hz, 48.4kHz

640 x 350 @ 70Hz, 31.5kHz
640 x 400 @ 70Hz, 31.5kHz
640 x 480 @ 60Hz, 31.5kHz
640 x 480 @ 67Hz, 35.0kHz
640 x 480 @ 72Hz, 37.9kHz
640 x 480 @ 75Hz, 37.5kHz
720 x 400 @ 70Hz, 31.5kHz
800 x 600 @ 56Hz, 35.1kHz
800 x 600 @ 60Hz, 37.9kHz
800 x 600 @ 75Hz, 46.9kHz
800 x 600 @ 72Hz, 48.1kHz
832 x 624 @ 75Hz, 49.7kHz
1024 x 768 @ 60Hz, 48.4kHz

ViewSonic Corporation Confidential

25

-

Do Not Copy VG720-1

1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz
1024 x 768 @ 75Hz, 60.0kHz
1280 x 1024 @ 60Hz, 63.4kHz
1280 x 1024 @ 75Hz, 79.97kHz
1280x 720 @ 60Hz, 45kHz

1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz
1024 x 768 @ 75Hz, 60.0kHz
1280 x 1024 @ 60Hz, 63.4kHz
1280 x 1024 @ 75Hz, 79.97kHz
1280x 720 @ 60Hz, 45kHz

Function Test Display Pattern

Item Test Content Pattern Specification Remark

1

2

3 Boundary

4

Frequency &

Tracking
Contrast/Bright
ness

Fine Line Moire

16 Gray Scale

Horizontal&Vertical
Thickness

RGB Color
Performance

RGB Color Intensities

Screen

5

Uniformity &

Full White

Flicker

6

Dead
Pixel/Line

White Screen & Dark
Screen

7 White Balance White & Black Pattern

Eliminate visual wavy
noise.
16 gray levels sh should
be distinguishable.

Figure 1

Figure 2

Horizontal and Vertical
position of video should
be adjustable to be

Figure 3

within the screen frame.
Contrast of each R, G,
B, color should be
normal.

Should be compliant
with the spec.

Figure
4,5,6

Figure 7

The numbers of dead
pixels should be

Figure 7,8
compliant with the spec.
The screen must have
the pure white and black

Figure 9
pattern, no other color.

Fine Line Morie Pattern (Figure1) Gray Scale Pattern (Figure2)

ViewSonic Corporation Confidential

26

-

Do Not Copy VG720-1

Horizontal & Vertical Thickness Pattern R. Color Pattern (Figure 4)
(Figure 3)

G. Color Pattern (Figure 5) B. Color Pattern (Figure 6)

Full White Pattern (Figure 7) Dark Screen Pattern (Figure 8)

ViewSonic Corporation Confidential

27

-

Do Not Copy VG720-1

Black-White Pattern (Figure 9)

4.3 Function Test and Alignment Procedure

All Modes Reset

You should do “All Mode Reset” (Refer to Chapter III-3. Hot Keys for Function
Controls) first. This action will allow you to erase all end-user’s settings and restore
the factory defaults.

Auto Image Adjust

Please select and enter “Auto Image Adjust” function on Main Menu to see if it is
workable. The “Auto Image Adjust” function is aimed to offer a better screen quality
by built-in ASIC. For optimum screen quality, the user has to adjust each function
manually.

Firmware

Test Pattern: Burn In Mode (Refer to Chapter III-3. Hot Keys for Function Controls)

- Make sure the F/W is the latest version.

DDC

Test Pattern: EDID program
Make sure it can pass test program.

Fine Tune and Sharpness

Test Signal: 1280*1024@60Hz
Test Pattern: Line Moire Pattern
Check and see if the image has noise and focus performs well. Eliminate visual
line bar.
If not, readjust by the following steps:
(a)Select and enter “Fine Tune” function on “Manual Image Adjust” to adjust the
image to eliminate visual wavy noise.
(b)Then, select and enter “Sharpness” function to adjust the clarity and focus of
the screen image.

Boundary

Test Signal: 1280*1024@60Hz
Test Pattern: Horizontal & Vertical Line Thickness Pattern
Check and see if the image boundary is within the screen frame.
If not, readjust by the following steps:
(a)Select and enter “Manual Image Adjust” function on OSD Main Menu.

ViewSonic Corporation Confidential

28

-

Do Not Copy VG720-1

(b)Then, select and enter “Horizontal Size” or “Horizontal/Vertical Position” function
to adjust the video boundary to be full scanned and within screen frame.

White Balance

Test Signal: 640*480@60Hz
Test Pattern: White and Black Pattern

1.5.8 R, G, B, Colors Contrast
Test Signal: 1280*1024@60Hz
Test Pattern: R, G, B, Color Intensities Pattern and 16 Gray Scale Pattern

- Check and see if each color is normal and distinguishable.

- If not, please return the unit to repair area.

Screen Uniformity and Flicker

Test Signal: 1280*1024@60Hz
Test Pattern: Full White Pattern

- Check and see if it is in normal condition.

1.5.10 Dead Pixel and Line
Test Signal: 1280*1024@60Hz
Test Pattern: Dark and White Screen Pattern

- Check and see if there are dead pixels on LCD panel with shadow gauge and

filter film.

- The total numbers and distance of dead pixels should be compliant with the

spec.

Mura

Test Pattern: White, RGB, Black, & Grey
Test Tool: 10% ND Filter

- Check if the Mura can pass 10% ND Filter.

Audio

Test Signal: Voice signal (optional, depend on model)
Test Pattern: liberty

- Make sure there is audio output.

- Make sure that audio function (volume 80%) is working without noise and

resonance.

- Make sure that the sound of right and left speakers are in balance.

Check for Secondary Display Modes

Test Signal:

Analog: 640*350@70Hz; 640*480@60/67/72/75/85Hz;
720*400@70Hz; 800*600@56/60/72/75/85Hz;
832*624@75Hz, 1024*768@60/70/72/75/85Hz;
1280*1024@60/75Hz
Digital: 640*350@70Hz; 640*480@60/72/75/85Hz;
720*400@70Hz; 800*600@56/60/72/75/85Hz;
1024*768@60/70/72/75/85Hz; 1152*870@75Hz,
1280*720@60Hz, 1280*1024@60Hz

- Normally when the primary mode 1280*1024@60Hz is well adjusted and

compliant with the specification, the secondary display modes will also be
compliant with the spec. But we still have to check with the general test pattern to
make sure every secondary is compliant with the specification.

-

ViewSonic Corporation Confidential

29

-

Do Not Copy VG720-1

All Modes Reset

After final QC step, we have to erase all saved changes again and restore the
factory defaults. You should do “All Mode Reset” again.

Power Off Monitor

Turn off the monitor by pressing “Power” button.

5.6 Firmware Upgrade Procedure

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

1 Equipment Needed

- VG720/VG920 Monitor

- Fixture for Firmware Upgrade

- Power Adapter (P/N: 47.58201.001) *1 for Fixture

- VGA Cable (P/N: 42.59901.003) *1(Pin 4, 11 should be connected to GND)

- PC (Personal Computer)

- LPT Cable (P/N: 42.59906.001) *1

- Firmware Upgrade Program

- One additional monitor for checking the program execution

ViewSonic Corporation Confidential

30

-

Do Not Copy VG720-1

2 Setup Procedure

2.1 Connect P2 of Fixture with printer port of PC by LPT Cable.

2.2 Connect P1 of Fixture with VG720/VG920 Monitor by VGA Cable.

2.3 Plug Power Adapter to Fixture.

2.4 Connect Power Cord to VG720/VG920 Monitor.

2.5 Connect P3 to the Signal Generator (eg.Chroma2326) for verifying it after the
operation being completed.

2.6 Connect PC to the additional monitor.

JP1：to Power Adapter

P1：to VGA Cable

P2：to LPT Cable

3 Firmware Upgrade Procedure

Step 1. Let VG720/VG920 set to be connected with AC cable and VGA cable.

Step 2.Execute the MSstar ISP tool.

P3：to Signal Generator

ViewSonic Corporation Confidential

31

-

Do Not Copy VG720-1

Step 3. Click “Config” button . Select the Port Type: LPT1 and the Base Addr : 0x378
on “Communication Setting” flame,and then the Speed: 47 on “E2PROM Device
Setting” flame

Step 4. Click “Connect” button. (On this step, if the connection is successful, the “Entry
ISP Mode” Dialog will be showed. If not, the error dialog will be done.)

Step 5. Click “Device” button. Select the “PMC25LV010” or “SST25VF010” viewed on
your set.

ViewSonic Corporation Confidential

32

-

Do Not Copy VG720-1

Step 6. Click “Read” button. Select the object bincode on your corresponding directory.

Step 7. Click “Auto” button. Execute the flashing action by clicking the “Run” button.

Step 8. If the flashing F/W has been completed, “Ok” message will be showed on the
right TextBox.

ViewSonic Corporation Confidential

33

-

Do Not Copy VG720-1

Step 9. Unplug and replug power cord of VG720/VG920 set and then check the OSD
operation and image on srceen.

Step 10. At last, do “Memory Recall.”

3.2 Setup Procedure

3.2.1 Connect P2 and P4 of Fixture with VGA ports of VG720 VG720/VG920by VGA

Cable.

3.2.2 Connect P3 of Fixture with DVI port of VG720 by DVI-DVI Cable.

3.2.3 Connect P1 of Fixture with Printer port of PC by LPT Cable.

3.2.4 Plug Power Adapter to Fixture.

3.2.5 Connect Power Cord to VG720/VG920 Monitor.

3.2.6 Connect PC to the additional monitor.

P3：DVI-DVI Cable

JP1： Power Adapter

P2： VGA Cable

P1：to LTP Cable

ViewSonic Corporation Confidential

34

-

Do Not Copy VG720-1

3.3 DDC Key In Procedure

Sep1.Select and execute DDc Key In program

ViewSonic Corporation Confidential

35

-

Do Not Copy VG720-1

Sep2:Inpute the S/N and execute “Enter”

ViewSonic Corporation Confidential

36

-

Do Not Copy VG720-1

ViewSonic Corporation Confidential

37

-

Do Not Copy VG720-1

Sep3:Key the “Enter” and write the data

ViewSonic Corporation Confidential

38

-

Do Not Copy VG720-1

Sep4:If ddc program OK and show “data compare ok”

ViewSonic Corporation Confidential

39

-

Do Not Copy VG720-1

5.7 Packing For Shipping

ViewSonic Corporation Confidential

40

-

Do Not Copy VG720-1

Packing Part List

ITEM DESCRIPITON PART NUMBER Q’TY

1 CARTON C 44G3778709 1A 1

HANDLE1 50G 600 2 1

2

HANDLE2 50G 600 3 1

3 PE BAG 45G 76 28 V3 1

4 CD MANUAL 70G1701709 5B 1

5 QSG 41G7801709 4A 1

6 EPE COVER 45G 88609 4 1

7 MONITOR T780KQ6HKGVWABP 1

8 EPE COVER 45G 88609 B 1

9 PE BAG 45G 88607 1

44G3778 1 1

10 EPS

44G3778 2 1

11 AUDIO CABLE 89G 173 56507 1

12 POWER CORD 89G402A18N LS 1

13 SIGNAL CABLE 89G 728GAA902 1

14 DVI CABLE 89G1748GAA 11 1

ViewSonic Corporation Confidential

41

-

Do Not Copy VG720-1

Disassemble Process

1 Units Disassemble Process

1.1 Tools

 Glove

 Big cross screwdriver

 Small cross screwdriver

 Prize equipment or abandoned IC card

 Screw box

 Cushion

 Six angle sleeve spanner

1.2 Disassemble process

1、 Tide up the worktable, spread straight cushion, put the monitor on it, the front side

adown.(Picture 1)

2、 Disassemble the 4 screws that fix the stand, remove the stand..(Picture 2, 3, 4)
3、 Disassemble the 2 screws of the back cover.（Picture 5）
4、 Use equipment or abandoned IC card to prize up the bezel through the bottom flute,

as showed in the following the picture 6, and rip up the back cover downwards.( as
showed in the following the picture 7,8)

5、 Disassemble the 6 screw M3*6MM through six angle sleeve spanner, showed in the

following picture 9.

6、 Disassemble the 2 fixed screws in the shield, remove the shield as the direction

arrowhead showed, refer to the following picture ,10.

7、 Disassemble the 5 screws and 4 pins of the PWPC board, remove the PWPC

board.(symbolized the following picture 11 with red color)

8、 Disassemble the 3 screws and 3 pins of the main board, remove the main board.

(symbolized the following picture 11 with blue color)

9、 Disassemble the 2 screws of the audio board, remove the audio board. (symbolized

the following picture 11,12 with yellow color)

10、 Disassemble the 4 screws of the speaker, remove the speaker, refer to the following

picture 13

11、 Disassemble the 4 fixed screws of the main frame, as showed in the following the

picture 14

12、 Disassemble the connect pins of the key board, as showed in the following the

picture 15. remove the bezel as the direction arrowhead showed, refer to the
following picture ,16,17.

13、 Disassemble the 4 fixed screws of the panel, remove the main frame, as showed in

the following the picture 18,19. Do not damage the cable of the panel.

14、 That’s all. The disassemble process of the unit is over.

ViewSonic Corporation Confidential

42

-

Do Not Copy VG720/B

1.3 Show pictures：

（Picture 1） （Picture 2）

（Picture 3） （Picture 4）

（Picture 5） （Picture 6）

（Picture 7） （Picture 8）

ViewSonic Corporation Confidential

43

-

Do Not Copy VG720/B

（Picture 9） （Picture 10）

（Picture 11）

（Picture 12） （Picture 13）

ViewSonic Corporation Confidential

44

-

Do Not Copy VG720/B

（Picture 14） （Picture 15）

（Picture 16） （Picture 17）

（Picture 18）

（Picture 19）

（Picture 20）

ViewSonic Corporation Confidential

45

-

Do Not Copy VG720/B

2 Stand A’ssy Disassemble Process

（Picture 1） （Picture 2）

（Picture 3） （Picture 4）

（Picture 5） （Picture 6）

ViewSonic Corporation Confidential

46

-

Do Not Copy VG720/B

（Picture 7） （Picture 8）

（Picture 9） （Picture 10）

（Picture 11） （Pictures 12）

ViewSonic Corporation Confidential

47

-

Do Not Copy VG720/B

（Picture 13） （Picture 14）

（Picture 15） （Picture 16）

（Picture 17） （Picture 17）

ViewSonic Corporation Confidential

48

-

Do Not Copy VG720/B

6. Troubleshooting Flow Chart

ViewSonic Corporation Confidential

49

-

Do Not Copy VG720-1

Miscellaneous:

BASE DIE CASTING

M-00003751

20G 036 1

1

7. Recommended Spare Parts List

ViewSonic Model Number: VS10791-1W
Rev: 1a

Serial No. Prefix: PT3

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

1

Accessories:

2 AUPC BOARD B-00003717 AUPC980A8P 1

Board Assembly:

3 CONVERSINON BOARD B-00003718 CBPC780KQ6VWP 1
4 KEY BOARD B-00003719 KEPC980KB8SMTP 1
5 POWER BOARD B-00003720 PWPC1742QDV1P 1
6 BEZEL C-00003721 34G1698AKR B 1

Cabinets:

7 REAR COVER C-00003722 34G1699 KR B 1
8 AUDIO CABLE CB-00003723 89G 173 56507 1

Cables:

9 CABLE CB-00003724 95G8018 30 95 1
10 DVI SIGNAL CABLE CB-00003725 89G1748LAA 11 1
11 SIGNAL CABLE CB-00003768 89G 728HAA902 1
12 WIRE HARNESS CB-00003726 95G8014 16921 1
13 8ms STICKER DC-00003498 40G581B709 3A 1

Documentation:

14 CARTON LABEL DC-00003727 40G 459709 1B 1
15 CD MANUAL DC-00003728 70G1701709 5A 1
16 H/V WARNING LABEL DC-00003729 40G 459709 4A 1
17 Hg LABEL DC-00003730 40G457B709 1A 1
18 HI-POT LABEL FOR 17-LCD DC-00003731 40G 459709 5A 1
19 ID VG720 DC-00003732 40G 970709 5A 1
20 QSG DC-00003733 41G7801709 4A 1
21 S/N LABEL DC-00003734 40G 459709 2B 1
22 17" LCD PANEL E-00003735 750GLQ70L07 61 1

Electronic

23 24LC16B/SNG SOIC-8PIN E-00003736 56G113356A U403 1

Components:

24 AIC1084-33PM TO-263 E-00003737 56G 563 7 U702 1
25 IC M24C02-WMN6TP E-00003738 56G1133 34 U404 1
26 IC MICROPROCESSOR MAX810 E-00003739 56G 643 6 U406 1
27 ID TPA3003D2PF BRG4 TQFP E-00003740 56G 616 6 U601 1
28 PM25LV010-25SCE E-00003741 56G1133 63QA1 U402 1
29 TSUM56AK-LF PQFP-100 E-00003742 56G 562108 U401 1
30 HINGE HW-00003743 37G 548 1 1

Hardware:

31 MAIN FRAME HW-00003744 15G8238 1 1
32 SCREW HW-00003745 M1G 140 10120 5
33 SCREW HW-00003746 M1G1030 6225 1
34 SCREW HW-00003747 M1G1730 6128 4
35 SCREW HW-00003748 Q1G 130 12120 2
36 SCREW HW-00003749 Q1G1030 10120 4
37 SCREW HW-00003750 Q1G 330 6120 4
38
39 CARTON P-00003752 C 44G3778709 1A 1

Packing Material:

40 EPE COVER P-00003753 45G 88609 4 1
41 EPE COVER P-00003754 45G 88609 B 1
42 EPS (L) P-00003755 44G3778 1 1
43 EPS (R) P-00003756 44G3778 2 1
44 PE BAG P-00003757 45G 76 28 V3 1
45 PE BAG P-00003758 45G 88607 1
46 BASE PL-00003759 34G1696 KR B 1

Plastics:

47 BASE FRONT BOTTOM PL-00003760 34G1695 KR B 1
48 BASE FRONT TOP PL-00003761 34G1694 KR B 1
49 COMESTIC BOTTOM PL-00003762 34G1701 KD B 1
50 COMESTIC TOP PL-00003763 34G1700AKD B 1
51 STAND FRONT PL-00003764 34G1702 KR B 1
52 STAND REAR PL-00003765 34G1703 KR B 1
53 SWIVEL COVER PL-00003766 34G1697 KR X 1
54 VESA COVER PL-00003767 34G1691 KR B 1

Remark 1:
Remark 2:

POWER CORD A-00003716 89G402A18N LS 1

Above listed items are examples, supplier can expand the rows to add more necessary items.
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 (VG720-1)

Description

ViewSonic Corporation Confidential

50

-

Do Not Copy VG720-1

ViewSonic Model Number: VS10791-1W

Rev: 1a

Serial No. Prefix: PT3

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

BOM LIST (VG720-1)

1 B-00003717 AUPC980A8P AUPC BOARD 1
2 B-00003718 CBPC780KQ6VWP CONVERSINON BOARD 1
3 B-00003719 KEPC980KB8SMTP KEY BOARD 1
4 B-00003720 PWPC1742QDV1P POWER BOARD 1
5 #N/A 11G 800 1 SPACER SUPPORT (RCU-3) 1
6 #N/A 12G 434 1 RUBBER PAD 4
7 #N/A 12G 437 1 THER MAL PAD 1
8 #N/A 15G8004 1 ROLLER PIN 4

9 #N/A 15G8237 1 VESA COVER 1
10 HW-00003744 15G8238 1 MAIN FRAME 1
11 #N/A 15G8239 1 Kensington bracket 1
12 M-00003751 20G 036 1 BASE DIE CASTING 1
13 #N/A 23G3178709 4A VSC17-LCD FRONT LOGO 1
14 #N/A 23G3178709 6A BIRD LOGO (E015-006) 1
15 #N/A 33G4915 KR L FUNCTION BUTTON 1
16 #N/A 33G4916 1 POWER LENS 1
17 #N/A 33G4917 KR X ROLLER 4
18 #N/A 33G4918 KR X CABLE CLIP 2
19 PL-00003767 34G1691 KR B VESA COVER 1
20 PL-00003761 34G1694 KR B BASE FRONT TOP 1
21 PL-00003760 34G1695 KR B BASE FRONT BOTTOM 1
22 PL-00003759 34G1696 KR B BASE 1
23 PL-00003766 34G1697 KR X SWIVEL COVER 1
24 C-00003721 34G1698AKR B BEZEL 1
25 C-00003722 34G1699 KR B REAR COVER 1
26 PL-00003763 34G1700AKD B COMESTIC TOP 1
27 PL-00003762 34G1701 KD B COMESTIC BOTTOM 1
28 PL-00003764 34G1702 KR B STAND FRONT 1
29 PL-00003765 34G1703 KR B STAND REAR 1
30 HW-00003743 37G 548 1 HINGE 1
31 #N/A 40G 45760819A LABEL 1
32 DC-00003727 40G 459709 1B CARTON LABEL 1
33 DC-00003734 40G 459709 2B S/N LABEL 1
34 DC-00003729 40G 459709 4A H/V WARNING LABEL 1
35 DC-00003731 40G 459709 5A HI-POT LABEL FOR 17-LCD 1
36 #N/A 40G 58162435A MANUAL P/N LABEL 1
37 DC-00003732 40G 970709 5A ID VG720 1
38 DC-00003730 40G457B709 1A Hg LABEL 1
39 DC-00003498 40G581B709 3A 8ms STICKER 1
40 DC-00003733 41G7801709 4A QSG 1
41 #N/A 44G 323 15547 EVA WASHER 1
42 P-00003755 44G3778 1 EPS(L) 1
43 P-00003756 44G3778 2 EPS(R) 1
44 P-00003757 45G 76 28 V3 PE BAG 1
45 #N/A 45G 77 3 TRANSPARENT SHEET 173
46 P-00003758 45G 88607 PE BAG 1
47 P-00003753 45G 88609 4 EPE COVER 1
48 P-00003754 45G 88609 B EPE COVER 1
49 #N/A 50G 600 1 W TAPE 74
50 #N/A 50G 600 2 HANDLE1 1
51 #N/A 50G 600 3 HANDLE2 1
52 #N/A 52G 1185 MIDDLE TAPE FOR CARTON 60
53 #N/A 52G 1185 24 TAPE 65
54 #N/A 52G 1216 A ALUMINIUM TAPE 1
55 #N/A 52G 1219 A ALUMINIUM TAPE 1
56 #N/A 52G 2191 D TAPE 75
57 #N/A 52G6020 1 PROTECT FILM 1
58 #N/A 52G6022 20 SMALL TAPE 100
59 #N/A 52G6025 11907 Mylar sheet top 1
60 #N/A 52G6025 11908 MYLAR BOTTOM 1
61 DC-00003728 70G1701709 5A CD MANUAL 1
62 #N/A 78G 334 5 SPEAKER 1
63 #N/A 85G 713 1 MAIN SHIELD 1
64 CB-00003723 89G 173 56507 AUDIO CABLE 1

ViewSonic Corporation Confidential

51

-

Do Not Copy VG720-1

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

65 CB-00003768 89G 728HAA902 SIGNAL CABLE 1
66 A-00003716 89G402A18N LS POWER CORD 1
67 CB-00003725 89G1748LAA 11 DVI SIGNAL CABLE 1
68 CB-00003726 95G8014 16921 WIRE HARNESS 1
69 CB-00003724 95G8018 30 95 CABLE 1
70 #N/A M1G 130 6120 SCREW 2
71 #N/A M1G 130 6225 SCREW M3X6 4
72 #N/A M1G 140 8120 SCREW M4X8 4
73 HW-00003745 M1G 140 10120 SCREW M4X10 5
74 #N/A M1G 330 4128 SCREW 2
75 HW-00003746 M1G1030 6225 SCREW M3X6 1
76 #N/A M1G1140 6128 SCREW 1
77 HW-00003747 M1G1730 6128 SCREW 3
78 HW-00003747 M1G1730 6128 SCREW 4
79 HW-00003747 M1G1730 6128 SCREW 2
80 #N/A M1G2940 10225 M4*10 4
81 #N/A Q1G 130 6 47 SCREW 3
82 #N/A Q1G 130 8120 SCREW 3
83 #N/A Q1G 130 12120 SCREW 1
84 HW-00003750 Q1G 330 6120 SCREW M3X6MM 2
85 HW-00003750 Q1G 330 6120 SCREW M3X6MM 4
86 #N/A Q1G 330 8120 SCREW 2
87 HW-00003749 Q1G1030 10120 M3*10 4
88 #N/A Q1G1030 12120 M3*12 2
89 E-00003735 750GLQ70L07 61 17"LCD PANEL 1
90 P-00003752 C 44G3778709 1A CARTON 1
91 B-00003717
92 #N/A AUPC980A8SMTP AUPC BOARD SMT 1
93 #N/A 33G3802 4H WAFER 4P RIGHT ANGLE CN603 1
94 #N/A 33G802414C H WAFER CN602 1
95 #N/A 51G6002 1 GLUE 1
96 #N/A 67G215B471 3H LOW ESR CAP 470UF 16V 8* C620 1
97 #N/A 67G305V100 7N GP 10UF50V KME50VB10-M-TP5 C601 1
98 #N/A 67G305V100 7N GP 10UF50V KME50VB10-M-TP5 C605 1
99 #N/A 67G305V100 7N GP 10UF50V KME50VB10-M-TP5 C617 1

100 #N/A 67G305V100 7N GP 10UF50V KME50VB10-M-TP5 C625 1
101 #N/A 88G 30214K PHONE JACK 5PIN CN601 1
102 #N/A 90G6119 1 HEATSINK 1
103 #N/A
104 E-00003740 56G 616 6 ID TPA3003D2PF BRG4 TQFP U601 1
105 E-00003517 61L0603000 CHIPR 0OHM +-5% 1/10W R602 1
106 #N/A 61L0603102 CHIPR 1KOHM +-5% 1/10W R608 1
107 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R601 1
108 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R609 1
109 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R610 1
110 #N/A 61L0603124 CHIP 120KOHM 1/10W R604 1
111 #N/A 61L0603124 CHIP 120KOHM 1/10W R607 1
112 #N/A 61L0603393 39K OHM 1/10W R611 1
113 #N/A 61L0603393 39K OHM 1/10W R612 1
114 #N/A 65G0603101 31 CHIP 100P 50V NPO C612 1
115 #N/A 65G0603101 31 CHIP 100P 50V NPO C615 1
116 #N/A 65G0603102 32 CHIP 1000PF 50 X7R C602 1
117 #N/A 65G0603102 32 CHIP 1000PF 50 X7R C603 1
118 #N/A 65G0603102 32 CHIP 1000PF 50 X7R C604 1
119 #N/A 65G0603102 32 CHIP 1000PF 50 X7R C630 1
120 #N/A 65G0603102 32 CHIP 1000PF 50 X7R C631 1
121 #N/A 65G0603102 32 CHIP 1000PF 50 X7R C632 1
122 #N/A 65G0603103 32 0.01UF 50V X7R C607 1
123 #N/A 65G0603103 32 0.01UF 50V X7R C608 1
124 #N/A 65G0603103 32 0.01UF 50V X7R C626 1
125 #N/A 65G0603103 32 0.01UF 50V X7R C629 1
126 #N/A 65G0603104 12 MLCC C606 1
127 #N/A 65G0603104 12 MLCC C609 1
128 #N/A 65G0603104 12 MLCC C618 1
129 #N/A 65G0603104 12 MLCC C621 1
130 #N/A 65G0603104 12 MLCC C627 1
131 #N/A 65G0603104 12 MLCC C628 1
132 #N/A 65G0603105 12 CHIP CAP 1UF. C610 1
133 #N/A 65G0603105 12 CHIP CAP 1UF. C611 1

AUPC980A8P AUPC BOARD

AUPC980A8SMTP AUPC BOARD SMT

ViewSonic Corporation Confidential

-

Do Not Copy VG720-1

52

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

134 #N/A 65G0603105 12 CHIP CAP 1UF. C613 1
135 #N/A 65G0603105 12 CHIP CAP 1UF. C614 1
136 #N/A 65G0603105 12 CHIP CAP 1UF. C616 1
137 #N/A 65G0603105 12 CHIP CAP 1UF. C619 1
138 #N/A 65G0603105 12 CHIP CAP 1UF. C623 1
139 #N/A 65G0603105 12 CHIP CAP 1UF. C624 1
140 #N/A 65G0603221 32 220PF/50V X7R C622 1
141 #N/A 71G 56G301 EA CHIP BEAD FB602 1
142 #N/A 71G 56G301 EA CHIP BEAD FB604 1
143 #N/A 71G 56G301 EA CHIP BEAD FB610 1
144 #N/A 71G 56G301 EA CHIP BEAD FB612 1
145 #N/A 71G 57G301 EA CHIP BEAD 600 OHM 1206 FB605 1
146 #N/A 71G 57G301 EA CHIP BEAD 600 OHM 1206 FB606 1
147 #N/A 71G 57G601 CHIP BEAD FB601 1
148 #N/A 71G 57G601 CHIP BEAD FB607 1
149 #N/A 71G 57G601 CHIP BEAD FB608 1
150 #N/A 71G 57G601 CHIP BEAD FB609 1
151 #N/A 715G1566 1 AUDIO 1
152 B-00003718
153 #N/A AIC780KQ6VWP MAIN BOARD
154 #N/A 33G801714H H PIN2*7 CN404
155 #N/A 33G801724A H PIN 24P 2.0MM RIGHT ANGL CN101
156 #N/A 33G8027 12 WAFER 2*6P 2.0MM R/A CN701 1
157 #N/A 33G8027 16 WAFER 16PIN 2.0MM DIP CN403 1
158 #N/A 40G 45762412B CBPC LABEL 1
159 #N/A 51G6002 1 GLUE 1
160 #N/A 67G215L101 4N LOW ESR EC 100UF 25V NCC C707 1
161 #N/A 67G215L101 4N LOW ESR EC 100UF 25V NCC C710 1
162 #N/A 67G215L101 4N LOW ESR EC 100UF 25V NCC C712 1
163 #N/A 67G309V100 3 Electrolytic CAP C408 1
164 #N/A 67G309V100 3 Electrolytic CAP C717 1
165 #N/A 67G309V109 3 1UF +-20% 16V C705 1
166 #N/A 67G309V479 3 4.7UF +-20% 16V C403 1
167 #N/A 67G309V479 3 4.7UF +-20% 16V C702 1
168 #N/A 88G 35315F H D-SUB 15PIN CN405 1
169 #N/A 88G 35424F H DVID CONN 24P FEMALE 90 CN406 1
170 #N/A 90G6250 1 GP HEAT SINK 1
171 #N/A 93G 22 53 CRYSTAL 14.31818MHZ HC-4 X401 1
172 #N/A
173 E-00003742 56G 562108 TSUM56AK-LF PQFP-100 U401 1
174 E-00003737 56G 563 7 AIC1084-33PM TO-263 U702 1
175 E-00003739 56G 643 6 IC MICROPROCESSOR MAX810 U406 1
176 #N/A 56G 643 8 IC ASM810MEURF-T SOT-23 U406 1
177 E-00003738 56G1133 34 IC M24C02-WMN6TP U404 1
178 E-00003738 56G1133 34 IC M24C02-WMN6TP U405 1
179 E-00003741 56G1133 63QA1 PM25LV010-25SCE U402 1
180 #N/A 56G1133 74QA1 SST25VF010A-33-4C-SAE SO U402 1
181 E-00003736 56G113356A 24LC16B/SNG SOIC-8PIN U403 1
182 #N/A 57G 417 4 PMBS3904/PLILIPS Q402 1
183 #N/A 57G 417 4 PMBS3904/PLILIPS Q404 1
184 #N/A 57G 417 4 PMBS3904/PLILIPS Q701 1
185 #N/A 57G 417 4 PMBS3904/PLILIPS Q703 1
186 #N/A 57G 417 4 PMBS3904/PLILIPS Q706 1
187 #N/A 57G 417 6 PMBS3906 PNP Q401 1
188 #N/A 57G 417 6 PMBS3906 PNP Q403 1
189 #N/A 57G 417 17 T PZT2907A SOT-223 Q702 1
190 #N/A 57G 763 1 AO3401L Q704 1
191 E-00003517 61L0603000 CHIPR 0OHM +-5% 1/10W FB410 1
192 E-00003517 61L0603000 CHIPR 0OHM +-5% 1/10W FB411 1
193 E-00003517 61L0603000 CHIPR 0OHM +-5% 1/10W FB412 1
194 E-00003517 61L0603000 CHIPR 0OHM +-5% 1/10W R419 1
195 E-00003517 61L0603000 CHIPR 0OHM +-5% 1/10W R421 1
196 E-00003517 61L0603000 CHIPR 0OHM +-5% 1/10W R431 1
197 E-00003517 61L0603000 CHIPR 0OHM +-5% 1/10W R432 1
198 E-00003517 61L0603000 CHIPR 0OHM +-5% 1/10W R720 1
199 E-00003517 61L0603000 CHIPR 0OHM +-5% 1/10W R721 1
200 #N/A 61L0603100 CHIPR 10 OHM 1/10W R462 1
201 #N/A 61L0603100 CHIPR 10 OHM 1/10W R463 1
202 #N/A 61L0603100 CHIPR 10 OHM 1/10W R464 1

CBPC780KQ6VWP CONVERSINON BOARD

AIC780KQ6VWP MAIN BOARD

ViewSonic Corporation Confidential

-

Do Not Copy VG720-1

53

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

203 #N/A 61L0603100 CHIPR 10 OHM 1/10W R465 1
204 #N/A 61L0603100 CHIPR 10 OHM 1/10W R466 1
205 #N/A 61L0603100 CHIPR 10 OHM 1/10W R467 1
206 #N/A 61L0603100 CHIPR 10 OHM 1/10W R468 1
207 #N/A 61L0603100 CHIPR 10 OHM 1/10W R469 1
208 #N/A 61L0603100 1F CHIP 1KOHM 1/10W 1% R478 1
209 #N/A 61L0603100 1F CHIP 1KOHM 1/10W 1% R479 1
210 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R411 1
211 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R418 1
212 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R420 1
213 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R427 1
214 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R428 1
215 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R429 1
216 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R441 1
217 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R442 1
218 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R443 1
219 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R445 1
220 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R453 1
221 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R454 1
222 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R455 1
223 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R456 1
224 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R458 1
225 E-00003280 61L0603101 CHIPR 100OHM +-5% 1/10W R704 1
226 #N/A 61L0603102 CHIPR 1KOHM +-5% 1/10W R430 1
227 #N/A 61L0603102 CHIPR 1KOHM +-5% 1/10W R446 1
228 #N/A 61L0603102 CHIPR 1KOHM +-5% 1/10W R447 1
229 #N/A 61L0603102 CHIPR 1KOHM +-5% 1/10W R470 1
230 #N/A 61L0603102 CHIPR 1KOHM +-5% 1/10W R476 1
231 #N/A 61L0603102 CHIPR 1KOHM +-5% 1/10W R477 1
232 #N/A 61L0603102 CHIPR 1KOHM +-5% 1/10W R701 1
233 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R406 1
234 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R408 1
235 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R412 1
236 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R413 1
237 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R415 1
238 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R416 1
239 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R424 1
240 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R425 1
241 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R426 1
242 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R450 1
243 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R451 1
244 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R452 1
245 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R457 1
246 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R459 1
247 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R460 1
248 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R461 1
249 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R471 1
250 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R484 1
251 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R485 1
252 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R708 1
253 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R711 1
254 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R714 1
255 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R717 1
256 #N/A 61L0603103 CHIPR 10KOHM+-5% 1/10W R727 1
257 #N/A 61L0603121 CHIPR 120 OHM 1/10W R409 1
258 #N/A 61L0603121 CHIPR 120 OHM 1/10W R414 1
259 #N/A 61L0603150 1F CHIP 1.5KOHM 1/16W 1% R480 1
260 #N/A 61L0603202 CHIPR 2KOHM+-5%1/10W R703 1
261 #N/A 61L0603203 CHIPR 20KOHM +-5% 1/10W R417 1
262 #N/A 61L0603222 CHIPR 2.2KOHM+-5%1/10W R448 1
263 #N/A 61L0603222 CHIPR 2.2KOHM+-5%1/10W R449 1
264 #N/A 61L0603223 CHIPR 22K OHM +-5% 1/10W R405 1
265 #N/A 61L0603390 0F 390OHM +-1% R403 1
266 #N/A 61L0603392 CHIP 3.9K OHM 1/10W R474 1
267 #N/A 61L0603392 CHIP 3.9K OHM 1/10W R475 1
268 #N/A 61L0603471 CHIPR 470OHM+-5%1/10W R437 1
269 #N/A 61L0603472 CHIP 4.7KOHM +-5% 1/10W R422 1
270 #N/A 61L0603472 CHIP 4.7KOHM +-5% 1/10W R423 1
271 #N/A 61L0603472 CHIP 4.7KOHM +-5% 1/10W R705 1

ViewSonic Corporation Confidential

-

Do Not Copy VG720-1

54

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

272 #N/A 61L0603472 CHIP 4.7KOHM +-5% 1/10W R707 1
273 #N/A 61L0603472 CHIP 4.7KOHM +-5% 1/10W R712 1
274 #N/A 61L0603472 CHIP 4.7KOHM +-5% 1/10W R725 1
275 #N/A 61L0603510 CHIP 51OHM 5% 1/10W R702 1
276 #N/A 61L0603513 CHIP 51K OHM R723 1
277 #N/A 61L0603560 CHIPR 56 OHM +-5% 1/10W R434 1
278 #N/A 61L0603560 CHIPR 56 OHM +-5% 1/10W R435 1
279 #N/A 61L0603560 CHIPR 56 OHM +-5% 1/10W R436 1
280 #N/A 61L0603750 CHIPR 75OHM+-5%1/10W R438 1
281 #N/A 61L0603750 CHIPR 75OHM+-5%1/10W R439 1
282 #N/A 61L0603750 CHIPR 75OHM+-5%1/10W R440 1
283 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C401 1
284 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C404 1
285 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C405 1
286 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C406 1
287 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C407 1
288 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C409 1
289 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C410 1
290 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C411 1
291 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C412 1
292 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C413 1
293 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C414 1
294 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C415 1
295 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C416 1
296 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C417 1
297 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C419 1
298 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C420 1
299 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C422 1
300 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C424 1
301 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C425 1
302 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C426 1
303 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C427 1
304 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C428 1
305 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C429 1
306 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C430 1
307 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C439 1
308 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C440 1
309 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C441 1
310 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C444 1
311 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C445 1
312 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C446 1
313 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C447 1
314 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C448 1
315 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C449 1
316 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C450 1
317 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C451 1
318 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C452 1
319 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C453 1
320 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C454 1
321 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C706 1
322 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C709 1
323 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C711 1
324 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C713 1
325 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C714 1
326 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C715 1
327 #N/A 65G0603104 32 CHIP 0.1UF 50V X7R C718 1
328 #N/A 65G0603220 32 Chip Cap 22PF C421 1
329 #N/A 65G0603220 32 Chip Cap 22PF C423 1
330 #N/A 65G0603221 32 220PF/50V X7R C443 1
331 #N/A 65G0603330 32 CHIP 33PF 50V NPO C442 1
332 #N/A 65G0603473 32 CHIP 47NF 50V X7R C432 1
333 #N/A 65G0603473 32 CHIP 47NF 50V X7R C433 1
334 #N/A 65G0603473 32 CHIP 47NF 50V X7R C434 1
335 #N/A 65G0603473 32 CHIP 47NF 50V X7R C435 1
336 #N/A 65G0603473 32 CHIP 47NF 50V X7R C436 1
337 #N/A 65G0603473 32 CHIP 47NF 50V X7R C437 1
338 #N/A 65G0603473 32 CHIP 47NF 50V X7R C438 1
339 #N/A 65G0805105 37 CHIP 1UF 50V Y5V C708 1
340 #N/A 71G 56Z601 2.0X1.2 100M=600OHM FB401 1

ViewSonic Corporation Confidential

-

Do Not Copy VG720-1

55

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

341 #N/A 71G 56Z601 2.0X1.2 100M=600OHM FB402 1
342 #N/A 71G 56Z601 2.0X1.2 100M=600OHM FB403 1
343 #N/A 71G 56Z601 2.0X1.2 100M=600OHM FB404 1
344 #N/A 71G 56Z601 2.0X1.2 100M=600OHM FB405 1
345 #N/A 71G 56Z601 2.0X1.2 100M=600OHM FB406 1
346 #N/A 71G 56Z601 2.0X1.2 100M=600OHM FB407 1
347 #N/A 71G 56Z601 2.0X1.2 100M=600OHM FB408 1
348 #N/A 71G 59B121 CHIP BEAD FB409 1
349 #N/A 93G 39146 LL5232B/FCI D414 1
350 #N/A 93G 39146 LL5232B/FCI D415 1
351 #N/A 93G 39146 LL5232B/FCI D416 1
352 #N/A 93G 39146 LL5232B/FCI D426 1
353 #N/A 93G 39149 ZENER MLL5232B BY FULL P D406 1
354 #N/A 93G 39149 ZENER MLL5232B BY FULL P D408 1
355 #N/A 93G 39149 ZENER MLL5232B BY FULL P D409 1
356 #N/A 93G 39149 ZENER MLL5232B BY FULL P D410 1
357 #N/A 93G 39149 ZENER MLL5232B BY FULL P D411 1
358 #N/A 93G 39149 ZENER MLL5232B BY FULL P D412 1
359 #N/A 93G 64 42 P BAV70 DIODE D407 1
360 #N/A 93G 64 42 P BAV70 DIODE D413 1
361 #N/A 93G 6432P LL4148 MINI-MELF/LL-34 D701 1
362 #N/A 93G 6432P LL4148 MINI-MELF/LL-34 D702 1
363 #N/A 93G 6433P BAV99 SOT-23 D403 1
364 #N/A 93G 6433P BAV99 SOT-23 D404 1
365 #N/A 93G 6433P BAV99 SOT-23 D405 1
366 #N/A 93G 6433P BAV99 SOT-23 D417 1
367 #N/A 93G 6433P BAV99 SOT-23 D418 1
368 #N/A 93G 6433P BAV99 SOT-23 D419 1
369 #N/A 93G 6433P BAV99 SOT-23 D420 1
370 #N/A 93G 6433P BAV99 SOT-23 D421 1
371 #N/A 93G 6433P BAV99 SOT-23 D422 1
372 #N/A 93G 6433P BAV99 SOT-23 D423 1
373 #N/A 93G 6433P BAV99 SOT-23 D424 1
374 #N/A 93G 39S 45 T RLZ36B ZENER DIODE D401 1
375 #N/A 93G 39S 45 T RLZ36B ZENER DIODE D402 1
376 #N/A 93G 39S 45 T RLZ36B ZENER DIODE D425 1
377 #N/A 93G1004 4 SCHOTTKY DIODE 1A 40V SM D704 1
378 #N/A 715G1558 1 2 MAIN BOARD 1
379 B-00003719
380 #N/A 33G803411C WAFER 1.0MM SMT 11P CN001 1
381 #N/A 77G 604 2 TO TACT SWITCH SW001 1
382 #N/A 77G 604 2 TO TACT SWITCH SW002 1
383 #N/A 77G 604 2 TO TACT SWITCH SW003 1
384 #N/A 77G 604 2 TO TACT SWITCH SW004 1
385 #N/A 77G 604 2 TO TACT SWITCH SW005 1
386 #N/A 77G 604 2 TO TACT SWITCH SW006 1
387 #N/A 77G 604 2 TO TACT SWITCH SW007 1
388 #N/A 77G 604 2 TO TACT SWITCH SW008 1
389 #N/A 81G 14501 KT KTL-HKBGE33B-TRB LED001 1
390 #N/A 715G1602 1 KEPC 1
391 B-00003720
392 #N/A PW1742QDV1SMTP MAIN BOARD FOR SMT 1
393 #N/A 33G8021 2D U CON.2PR/A CN201 1
394 #N/A 33G8021 2D U CON.2PR/A CN202 1
395 #N/A 33G8021 2D U CON.2PR/A CN203 1
396 #N/A 33G8021 2D U CON.2PR/A CN204 1
397 #N/A 33G8021 2D AC WAFER CN201 1
398 #N/A 33G8021 2D AC WAFER CN202 1
399 #N/A 33G8021 2D AC WAFER CN203 1
400 #N/A 33G8021 2D AC WAFER CN204 1
401 #N/A 33G8029 3A WAFER 3.96MM CN901 1
402 #N/A 40G 45762412B CBPC LABEL 1
403 #N/A 51G 6 4503 RTV GLUE 1
404 #N/A 56G 139 3 PC123FY2 BY SHARP IC902 1
405 #N/A 56G 139 3A PC123Y22FZOF IC902 1
406 #N/A 57G 417 11 KTC5103L-Y-U/P IPAK Q206 1
407 #N/A 57G 417 11 KTC5103L-Y-U/P IPAK Q207 1
408 #N/A 57G 761 7 TRANSISTOR KTD1691/P Q206 1
409 #N/A 57G 761 7 TRANSISTOR KTD1691/P Q207 1

KEPC980KB8SMTP KEY BOARD

PWPC1742QDV1P POWER BOARD

ViewSonic Corporation Confidential

-

Do Not Copy VG720-1

56

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

410 #N/A 61G 58080 WT NTCR NR901 1
411 #N/A 61G152M398 64 RES. R918 1
412 #N/A 63G 10747410S 0.47UF +-10% 250VAC C903 1
413 #N/A 63G210J3342B2 0.33uF 250V PMS TAIYANG C221 1
414 #N/A 63G211J334 AB 0.33UF 5% 160V C221 1
415 #N/A 65G 2K152 5A 1500PE 10% Y5P 2KV C905 1
416 #N/A 65G 3J1206EM 12PF 5% SL 3KV MURATA C211 1
417 #N/A 65G 3J1206EM 12PF 5% SL 3KV MURATA C212 1
418 #N/A 65G 3J1206EM 12PF 5% SL 3KV MURATA C213 1
419 #N/A 65G 3J1206EM 12PF 5% SL 3KV MURATA C214 1
420 #N/A 65G 3J1206ET 12PF 5% SL 3KV TDK C211 1
421 #N/A 65G 3J1206ET 12PF 5% SL 3KV TDK C212 1
422 #N/A 65G 3J1206ET 12PF 5% SL 3KV TDK C213 1
423 #N/A 65G 3J1206ET 12PF 5% SL 3KV TDK C214 1
424 #N/A 65G305M1022BJ 1000PF Y2 400V 20% BY JN C901 1
425 #N/A 65G305M1022BJ 1000PF Y2 400V 20% BY JN C902 1
426 #N/A 65G305M1022EM 1000pF Y2 250V 20% BY MU C901 1
427 #N/A 65G305M1022EM 1000pF Y2 250V 20% BY MU C902 1
428 #N/A 65G306M1022BM GP Y1.CAP.001UF 250VAC MURA C935 1
429 #N/A 65G306M1022BP 1000PF 400VAC/250VAC Y1 C935 1
430 #N/A 65G306M2222BM GP 2200PF +-20% 250V AC C900 1
431 #N/A 65G306M2222BP 2200PF Y1 400 20% BY UK C900 1
432 E-00002395 67G215H102 3N KY16VB1000M-1 10*20 C924 1
433 #N/A 67G215L101 4N LOW ESR EC 100UF 25V NCC C906 1
434 #N/A 67G215L102 3N KY16VB1000M-1 10*20 C924 1
435 #N/A 67G215L102 3R LOW ESR 1000UF +-20% 16V C924 1
436 #N/A 67G215L102 4N LOW ESR 1000UF 25V C923 1
437 #N/A 67G215L102 4N LOW ESR 1000UF 25V C931 1
438 #N/A 67G215L102 4R 1000UF/25V C923 1
439 #N/A 67G215L102 4R 1000UF/25V C931 1
440 #N/A 67G215L470 4N 47UF/25V C909 1
441 #N/A 67G215L471 4N 470UF25V KY25VB470-M-L 1 C203 1
442 #N/A 67G215L471 4N 470UF25V KY25VB470-M-L 1 C925 1
443 #N/A 67G215L471 4R 470UF/25V C203 1
444 #N/A 67G215L471 4R 470UF/25V C925 1
445 #N/A 67G215P102 3K LOW ESR EC 1000UF 16V C924 1
446 #N/A 67G215P102 4K LOW ESR EC 1000UF 25V C923 1
447 #N/A 67G215P102 4K LOW ESR EC 1000UF 25V C931 1
448 #N/A 67G215P471 3K LOW ESR EC 470UF 16V C926 1
449 #N/A 67G215P471 4K LOW ESR EC 470UF 25V C203 1
450 #N/A 67G215P471 4K LOW ESR EC 470UF 25V C925 1
451 #N/A 67G215S10115K LOW ESR EC 100uF 450V C904 1
452 #N/A 67G215S10115N 1000/450PAG450VB100M-L 1 C904 1
453 #N/A 67G215V102 3N GP KY10VB1000M-L10*16 C924 1
454 #N/A 67G215V102 3R GP LOW E.S.R 100UF +-20% 16 C924 1
455 #N/A 67G215Y1014KT LOW ESR EC 100UF 25V C906 1
456 #N/A 67G215Y4704KT LOW ESR EC 47UF 25V C909 1
457 #N/A 67G215Y471 3N 470UF 16V KY16VB470M-L 8 C926 1
458 #N/A 67G215Y4713NV KY16VB470M-CC3 8*15MM C926 1
459 #N/A 67G215Y4713RV LOW E.S.R 470UF +-20% 16 C926 1
460 #N/A 73G 174 64 L LINE FILTER LF-004057-1 L902 1
461 #N/A 73G 174 64 LS LINE FILTER L902 1
462 #N/A 73G 174 64 YS LINE FILTER L902 1
463 #N/A 73G 253 91 H CHOKE BY LI TA L903 1
464 #N/A 73G 253 91 H CHOKE BY LI TA L904 1
465 #N/A 73G 253 91 L CHOKE BY LI TA L903 1
466 #N/A 73G 253 91 L CHOKE BY LI TA L904 1
467 #N/A 73G 253 91 LS CHOKE COIL L903 1
468 #N/A 73G 253 91 LS CHOKE COIL L904 1
469 #N/A 73G 253166 L CHOKE L201 1
470 #N/A 73G 253166 LS CHOCK COIL L201 1
471 #N/A 73G 253166 YS CHOKE L201 1
472 #N/A 73L 174 50 LH LINE FILTER L901 1
473 #N/A 73L 174 50LSH LINE FILTER L901 1
474 #N/A 80GL17T 28 YS X'FMR PT201 1
475 #N/A 80GL17T 28 YS X'FMR PT202 1
476 #N/A 80GL17T 29 L X'FMR PT-004046 T901 1
477 #N/A 80GL17T 29 V XFMR T901 1
478 #N/A 80GL17T 29 LS POWER TRANS T901 1

ViewSonic Corporation Confidential

-

Do Not Copy VG720-1

57

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

479 E-00001873 84G 56 1 FUSE 2A 250V F901 1
480 #N/A 93G 50460 13 BRIDGE DIODE DB901 1
481 #N/A 93G 50460502 BRIDGE KBP206G 2A 800V DB901 1
482 #N/A 93G1100 1052T BA159GPT DO-41 DIODE 1A D901 1
483 #N/A 95G8014 12 35 WIRE HARRNESS CN902 1
484 #N/A 705G 780 5720P D921/D922 ASS'Y 1
485 #N/A 705G 780 5721P Q901 ASS'Y 1
486 #N/A 705G 780 5722P R908 ASS'Y 1
487 #N/A 705G 780 5725P CN901 ASS'Y 1
488 #N/A 705G 780 5733P Q203 ASS'Y 1
489 #N/A
490 #N/A PW1742QDV1AIP PWPC BOARD FOR AI 1
491 #N/A 56G 379 54 NCP1203D60R2G SOIC-8 IC IC901 1
492 #N/A 56G 608 1 TL1451ACD SOIC-16 IC201 1
493 #N/A 57G 417 4 PMBS3904/PLILIPS Q204 1
494 #N/A 57G 417 6 PMBS3906 PNP Q205 1
495 #N/A 57G 417 12 T 2N3904S-RTK/PS SOT-23 Q204 1
496 #N/A 57G 417 13 T 2N3906S-RTK/PS SOT-23 Q205 1
497 #N/A 57G 760 4 DTA144WKA Q202 1
498 #N/A 57G 760 5 DTC144WKA Q201 1
499 #N/A 57G 760 4C RT1P44HC-T112-1 SC-59BYI Q202 1
500 #N/A 57G 760 5C RT1N44HC-T112-1 SC-59BYI Q201 1
501 #N/A 61L0805000 Chip Resistors 0OHM R208 1
502 #N/A 61L0805000 Chip Resistors 0OHM R209 1
503 #N/A 61L0805101 CHIPR 100OHM+-5%1/8W R912 1
504 #N/A 61L0805102 CHIPR 1K OHM +-5% 1/8W R924 1
505 #N/A 61L0805102 CHIPR 1K OHM +-5% 1/8W R931 1
506 #N/A 61L0805102 CHIPR 1K OHM +-5% 1/8W R932 1
507 #N/A 61L0805103 CHIPR 10KOHM+-5%1/8W R207 1
508 #N/A 61L0805103 CHIPR 10KOHM+-5%1/8W R917 1
509 #N/A 61L0805123 CHIP 12K OHM 1/8W R206 1
510 #N/A 61L0805123 CHIP 12K OHM 1/8W R214 1
511 #N/A 61L0805123 CHIP 12K OHM 1/8W R231 1
512 #N/A 61L0805163 CHIP 16KOHM 1/8W R205 1
513 #N/A 61L0805203 CHIPR 20KOHM +-5% 1/8W R919 1
514 #N/A 61L0805220 CHIP 22OHM 5% 1/8W R915 1
515 #N/A 61L0805221 CHIPR 220 OHM +-5% 1/8W R202 1
516 #N/A 61L0805221 CHIPR 220 OHM +-5% 1/8W R916 1
517 #N/A 61L0805222 CHIPR 2.2K OHM +-5% 1/8W R910 1
518 #N/A 61L0805240 1F CHIPR 2.4KOHM +-1% 1/8W R201 1
519 #N/A 61L0805240 1F CHIPR 2.4KOHM +-1% 1/8W R203 1
520 #N/A 61L0805240 1F CHIPR 2.4KOHM +-1% 1/8W R933 1
521 #N/A 61L0805330 2F CHIP 33KOHM 1/8W/1% R929 1
522 #N/A 61L0805360 1F CHIP 3.6KOHM 1/8W 1% R930 1
523 #N/A 61L0805362 CHIP 306KOHM 1/8W R911 1
524 #N/A 61L0805471 CHIPR 470 OHM +-5% 1/8W R204 1
525 #N/A 61L0805471 CHIPR 470 OHM +-5% 1/8W R230 1
526 #N/A 61L0805472 CHIPR 4.7K OHM +-5% 1/8W R213 1
527 #N/A 61L0805472 CHIPR 4.7K OHM +-5% 1/8W R914 1
528 #N/A 61L0805473 CHIPR 47K OHM +-5% 1/8W R210 1
529 #N/A 61L0805510 2F CHIP 51KOHM 1/8W 1% R232 1
530 #N/A 61L0805623 CHIPR 62K OHM +-5% 1/8W R212 1
531 #N/A 61L0805680 CHIP 68OHM 1/8W R909 1
532 #N/A 61L0805681 CHIP 680OHM 1/8W R229 1
533 #N/A 61L0805753 75K 1/8W R913 1
534 #N/A 61L1206000 CHIPR 0OHM+-5% 1/4W F902 1
535 #N/A 61L1206000 CHIPR 0OHM+-5% 1/4W R925 1
536 #N/A 61L1206332 CHIP 3.3KOHM 5% 1/4W R903 1
537 #N/A 61L1206332 CHIP 3.3KOHM 5% 1/4W R904 1
538 #N/A 61L1206332 CHIP 3.3KOHM 5% 1/4W R905 1
539 #N/A 61L1206334 330K 1/4W R900 1
540 #N/A 61L1206334 330K 1/4W R901 1
541 #N/A 61L1206334 330K 1/4W R902 1
542 #N/A 65G0805102 32 CHIP 1000PF 50V X7R 0805 C912 1
543 #N/A 65G0805104 22 CHIP 0.1UF 25VX7R 0805 C201 1
544 #N/A 65G0805104 22 CHIP 0.1UF 25VX7R 0805 C202 1
545 #N/A 65G0805104 22 CHIP 0.1UF 25VX7R 0805 C204 1
546 #N/A 65G0805104 22 CHIP 0.1UF 25VX7R 0805 C208 1
547 #N/A 65G0805104 32 CHIP 0.1UF 50V X7R 0805 C907 1

PW1742QDV1SMT P MAIN BOARD FOR SMT

ViewSonic Corporation Confidential

-

Do Not Copy VG720-1

58

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

548 #N/A 65G0805104 32 CHIP 0.1UF 50V X7R 0805 C927 1
549 #N/A 65G0805104 32 CHIP 0.1UF 50V X7R 0805 C928 1
550 #N/A 65G0805104 32 CHIP 0.1UF 50V X7R 0805 C929 1
551 #N/A 65G0805105 22 CHIP 1UF 25V X7R 0805 C205 1
552 #N/A 65G0805105 22 CHIP 1UF 25V X7R 0805 C210 1
553 #N/A 65G0805105 22 CHIP 1UF 25V X7R 0805 C223 1
554 #N/A 65G0805331 31 CHIP 330PF 40V NPO C207 1
555 #N/A 65G0805471 31 CHIP 470PF 50V NPO C911 1
556 #N/A 65G0805474 22 CHIP 0.47UF 25V Y5V 0805 C222 1
557 #N/A 65G0805474 22 CHIP 0.47UF 25V Y5V 0805 C932 1
558 #N/A 93G 60264 B340A DO-214AC D201 1
559 #N/A 93G 6432V DIODE LL4148 GS08 D210 1
560 #N/A 93G 6432V DIODE LL4148 GS08 D903 1
561 #N/A 93G 6432V DIODE LL4148 GS08 D923 1
562 #N/A 93G 6432V DIODE LL4148 GS08 D924 1
563 #N/A 93G 39S 8 T RLZ11B LLDS ZD201 1
564 #N/A 93G 39S 25 T RLZ5.1B ROHM ZD902 1
565 #N/A 93G 39S 25 T RLZ5.1B ROHM ZD905 1
566 #N/A 93G 39S 38 T PTZ9.1B ROHM ZD903 1
567 #N/A 93G 39S 40 T RLZ13B ROHM ZD904 1
568 #N/A 93G 39S 44 T RLZ18B LLDS ZD901 1
569 #N/A 93G3004 4 DIODE RB050L-40 D201 1
570 #N/A
571 #N/A 6G 31502 1.5MM RIVET 1
572 #N/A 56G 158 10 T IC AZ431AZ-AE1 TO-92 IC903 1
573 #N/A 56G 158 12 KIA431A-AT/P TO-92 IC IC903 1
574 #N/A 57G 419 PP T 2PC945P Q903 1
575 #N/A 57G 420 PP T TRANSISTOR 2PA733P Q902 1
576 #N/A 61G 17210252T 1KOHM 5% 1/4W R225 1
577 #N/A 61G 17210252T 1KOHM 5% 1/4W R226 1
578 #N/A 61G 17210252T 1KOHM 5% 1/4W R227 1
579 #N/A 61G 17210252T 1KOHM 5% 1/4W R228 1
580 #N/A 61G 17218252T 1.8KOHM 5% 1/4W R221 1
581 #N/A 61G 17218252T 1.8KOHM 5% 1/4W R222 1
582 #N/A 61G 17218252T 1.8KOHM 5% 1/4W R223 1
583 #N/A 61G 17218252T 1.8KOHM 5% 1/4W R224 1
584 #N/A 61G 17256152T 560OHM 5% 1/4W R923 1
585 #N/A 61G175L47052T 47OHM +-5% 1/2W R921 1
586 #N/A 61G175L47052T 47OHM +-5% 1/2W R922 1
587 #N/A 65G517K102 5T 1000PF 10% Y5P 500V C921 1
588 #N/A 65G517K102 5T 1000PF 10% Y5P 500V C922 1
589 #N/A
590 #N/A 67G 3051007NT GP 10UF50V KME50VB10-M-TP5 C908 1
591 #N/A 67G215Y1007KT LOW ESR EC10UF 50V C908 1
592 #N/A 71G 55 9 T FERRITE BEAD J914 1
593 #N/A 93G 64 1152T DIODE 1N4148 DO-35 D202 1
594 #N/A 93G 64 1152T DIODE 1N4148 DO-35 D203 1
595 #N/A 93G 64 1152T DIODE 1N4148 DO-35 D204 1
596 #N/A 93G 64 1152T DIODE 1N4148 DO-35 D205 1
597 #N/A 93G 64 1152T DIODE 1N4148 DO-35 D206 1
598 #N/A 93G 64 1152T DIODE 1N4148 DO-35 D207 1
599 #N/A 93G 64 1152T DIODE 1N4148 DO-35 D208 1
600 #N/A 93G 64 1152T DIODE 1N4148 DO-35 D209 1
601 #N/A 93G1020 752T UF4003PT DO-41 DIODE 1A D902 1
602 #N/A 95G 90 23 TINCOATEDCOPPER J900 1
603 #N/A 95G 90 23 TINCOATEDCOPPER J901 1
604 #N/A 95G 90 23 TINCOATEDCOPPER J902 1
605 #N/A 95G 90 23 TINCOATEDCOPPER J903 1
606 #N/A 95G 90 23 TINCOATEDCOPPER J906 1
607 #N/A 95G 90 23 TINCOATEDCOPPER J907 1
608 #N/A 95G 90 23 TINCOATEDCOPPER J908 1
609 #N/A 95G 90 23 TINCOATEDCOPPER J909 1
610 #N/A 95G 90 23 TINCOATEDCOPPER J910 1
611 #N/A 95G 90 23 TINCOATEDCOPPER J911 1
612 #N/A 95G 90 23 TINCOATEDCOPPER J912 1
613 #N/A 95G 90 23 TINCOATEDCOPPER J915 1
614 #N/A 95G 90 23 TINCOATEDCOPPER J916 1
615 #N/A 95G 90 23 TINCOATEDCOPPER J917 1
616 #N/A 95G 90 23 TINCOATEDCOPPER J918 1

PW1742QDV1AIP PWPC BOARD FOR AI

67G 215330 3T 33UF +-20% 50V 105℃ LOW C209 1

ViewSonic Corporation Confidential

-

Do Not Copy VG720-1

59

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

AM1G1730 6128

SCREW

1

617 #N/A 95G 90 23 TINCOATEDCOPPER J919 1
618 #N/A 95G 90 23 TINCOATEDCOPPER J921 1
619 #N/A 715G1492 1 PWPC 1
620 #N/A
621 #N/A 51G 200 1 OIL 1
622 #N/A 90G6240 2 HEAT SINK 1
623 #N/A 93G 60236 FMB-26L TO-220 DIODE D922 1
624 #N/A 93G 60238 DIODE 10A 150V FCH10A15G D921 1
625 #N/A 93G 60239 DIODE FME-210B TO-220 D921 1
626 #N/A 93G1506 2 DIODE 15A 60V FMW-2156 T D922 1
627 #N/A M1G1730 8128 SCREW 1
628 #N/A
629 #N/A 51G 200 1 OIL
630 #N/A 57G 667 30 2SK2645-54MR TO-220F Q901 1
631 #N/A 57G 724 11 STP9NK65ZFP TO-220FP MOS Q901 1
632 #N/A 90G6240 1 HEAT SINK 1
633 #N/A M1G1730 8128 SCREW 2
634 #N/A
635 #N/A 61G152M10458G 100K OHM 5% 2W R908 1
636 #N/A 96G 29 6 SHRINK TUBE UL/CSA 1
637 #N/A
638 #N/A 87G 501 7 RF GP AC SOCKET 1
639 #N/A 95G 900584 WIRE HARNESS 1
640 #N/A 95G8021 3 11 HARNESS 100M 1
641 #N/A 96G 29 6 SHRINK TUBE UL/CSA 1
642 #N/A
643 #N/A 15G6284 1 PLATE 1
644 #N/A 51G 200 1 OIL 1
645 #N/A 57G 763 12 AOU401L TO-251 Q203 1
646 #N/A 90G6259 1 HEAT SINK 1
647 #N/A

705G 780 5720P D921/D922 ASS'Y

705G 780 5721P Q901 ASS'Y

705G 780 5722P R908 ASS'Y

705G 780 5725P CN901 ASS'Y

705G 780 5733P Q203 ASS'Y

ViewSonic Corporation Confidential

60

-

Do Not Copy VG720-1

8. Exploded Diagram and Exploded Parts List

ViewSonic Corporation Confidential

61

-

Do Not Copy VG720/B

ViewSonic Corporation

Model

Title
Date Rev:

ViewSonic Model Number: VS10791-1W

Rev: 1a

Serial No. Prefix: PT3

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

EXPLODED PARTS LIST (VG720-1)

1 #N/A
2 #N/A
3 #N/A
4 #N/A
5 #N/A
6 #N/A
7 #N/A
8 #N/A

9 #N/A
10 #N/A
11 #N/A
12 #N/A
13 #N/A 23G3178709-4A VIEWSONIC LOGO (E015-016-1) 1
14 #N/A
15 #N/A
16 #N/A
17 #N/A
18 #N/A
19 #N/A
20 #N/A
21 #N/A
22 #N/A

34G1698-KR-B BEZEL 1
34G1699-KR-B REAR COVER 1

34G1700-AKD-B COSMETIC TOP 1

34G1701-KD-B COSMETIC BOTTOM 1
33G4915-KR-L FUNCTION BUTTON 1

33G4916-1 POWER LENS 1
15G8238-1 MAIN FRAME 1

85G713-1 MAIN SHIELD 1

15G8239-1 KENSINGTON BRACKET 1
52G6025-11-907 MYLAR SHEET TOP 1
52G6025-11-908 MYLAR SHEET BOTTOM 1
23G3178709-6A BIRD LOGO (E015-006) 1

11G800-1 SPACER SUPPORT 1

M1G130-6-120 SCREW M3X6 4
M1G1730-6-128 SCREW M3X6 9
M1G1140-6-128 SCREW M4X6 1

M1G330-4-128 SCREW M3X4 2

M1G130-6-120 SCREW M3X6 2

Q1G1030-6-120 SCREW M3X6 4
Q1G1030-10-120 SCREW M3X10 4
Q1G1030-12-120 SCREW M3X12 2

ViewSonic Corporation Confidential

62

-

Do Not Copy VG720-1

EXPLODED PARTS LIST (VG720-1 STAND-ASS'Y P/N LIST)

23

#N/A

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

1 #N/A
2 #N/A
3 #N/A
4 #N/A
5 #N/A
6 #N/A
7 #N/A
8 #N/A

9 #N/A
10 #N/A
11 #N/A
12 #N/A
13 #N/A
14 #N/A
15 #N/A
16 #N/A
17 #N/A
18 #N/A
19 #N/A
20 #N/A
21 #N/A
22 #N/A

34G1691-KR-B VESA COVER 1
34G1702-KR-B STAND FRONT 1
34G1703-KR-B STAND REAR 1
34G1694-KD-B BASE FRONT TOP 1
34G1695-KD-B BASE FRONT BOTTOM 1
34G1696-KR-B BASE 1
34G1697-KR-X SMIVEL COVER 1
33G4917-KR-X ROLLER 4
33G4918-KR-X CABLE CLIP 2

37G548-1 HINGE 1

20G036-1 BASE DIECASTING 1
15G8237-1 VESA PLATE 1
15G8004-1 ROLLER SHAFT 4

12G434-1 RUBBER PAD 4

Q1G330-6-120 SCREW M3X6 2

Q1G130-6-47 SCREW M3X6 3

Q1G130-8-120 SCREW M3X8 3
M1G140-10-120 SCREW M4X10 5
Q1G130-12-120 SCREW M3X12 1
M1G1030-6-225 SCREW M3X6 1

Q1G330-8-120 SCREW M3X8 2

M1G140-8-120 SCREW M4X8 4

M1G2940-10-225 SCREW M4X10 4

ViewSonic Corporation

Model

Title
Date Rev:

ViewSonic Corporation Confidential

63

-

Do Not Copy VG720/B

9. Block Diagram

Flash

(Include:ADC,OSD,MCU etc)

Scaler TSUM56AK

ViewSonic Corporation Confidential

64

-

Do Not Copy VG720/B

10. Schematic Diagrams

+5V3,4

Adj_BACKLIGHT

on_Panel4

C706

0.1uF

NC

R716

+5V

C701

NC

C707

+

100uF/25V

C709

0.1uF

R717

10K 1/ 16W

4.7K 1/16W

+12V

+5V

C710

+

100uF/25V

R725

GND
GND

+12V

GND
+5V
GND

R706

R707

4.7K 1/16W

10K 1/16W

C718

0.1uF

U701

NC/LT1117-18

BL_ADJ(DC)
0V ~ 3.3V

BL_ADJ47C32R31
P W M
D C

+12V 4

NC

+5V

R714

VI3VO

1
3
5
7
9

11

SOT-223

2

4

VO

C703

GND

100uF/25V

1

R31

C51
1UF4.7K XX

4.7K

1UF

N.C
1uF4K7

CN701

CONN

2
4
6
8
10
12

VCC5V

R701

1K 1/16W

R705

Q701

PMBS3904

+3V3+3V3

R715

NC

R723 51K 1/16W

Q706

PMBS3904

BL_ON

BL_ADJ

+12V
GND
+5V

GND

C715

0.1uF

+

R290R32
X
1K0V ~ 5V

4.7K 1/16W

VLCD

Q704
AO3401L

+

10uF/16V

C717

C708

R713

R702

51 1/ 16W

C702

+

4.7uF/16V

R703

2K 1/ 16W

VCTRL 4

VCC3.3

C712

+

100uF/25V

VCC1.8

VCC1.8 4

VCC3.3 4

VCC3.3

VCC3.3 4

C714

0.1uF

+3V3

+3V3

C704

NC

Q4

R33

MMBT3904

4.7KX

+5V

R708

10K 1/ 16W

R710 NC

C711

0.1uF

1uF

R712 4.7K 1/16W

Q703
PMBS3904

H1

8

9

66778

5

9

4

11223

3

+5V

R711

10K 1/ 16W

D704(SSM12L) Vf=0.38V and If=1A.
So when system power on, the
system loading is about 400mA
(3.3V is about 200mA and 1.8V is
about 200mA), So D35 changed
from 1N4148(or BAT42) to
SSM12L(schottky diode).

P.S: The 1N4148 Vf=0.7V~1V can't meet
LDO spec. The BAT42, Vf is OK but the
If=200mA(forward current) can not
meet current spec.

5

9

4

TP

on_BACKLIGHT 4

H2

8

66778

5

9

4

11223

3

For RSDS and Panel VCC=12V

+5V

VLCD 5

+5V

R721

0 1/16W

R727

10K 1/ 16W

R722

NC

on_Panel_12V4

+5V +12V

R718

R729

NC/10K

NC/10K

R726 NC/4K7

C720

NC/0. 1uF

R719

NC/10K

R724 51K

Q707

PMBS3904

H3

8

5

9

5
4

TP

66778

5

9

4

4

11223

TP

3

D701

C

1N4148

B

Q702

E

CHT2907

D702

+

R709

0 1/16W

1

D703
BAT54C

1N4148

R704

100 1/16W

Recommond to used "Blue" parts circuit
for VCC1.8V if you want to suppoert DDC

PC5V 3+5V3,4

function when system power off

TO-263

U702

3

1

AIC1084-33PM

2

VIN

VOUT

4

VOUT

ADJ

NC

R720 0 1/16W

C705

1uF/16V

PC5V

+5V

R732

+5V

10 1/16W

+5V3,4

SMAL140

2

D704

3

C713

0.1uF

12/21 MODIFY

C716

0.1uF

VLCD_12V

Q705
AO3401L

+

NC/10uF /16V

C719

VLCD_12V 5

R728

NC/4K7

+12V+3V3

+5V

R730

R731

NC

0 1/ 16W

ViewSonic Corporation

Model

Title

Date Rev:

POWER

ViewSonic Corporation Confidential - Do Not Copy VG720-1

65

DDCA_SDA3
DDCA_SCL3

VCC3.3

+

C418

10uF/16V NC

R404

10K 1/ 16W NC

+5V

Reset
Circuit

C417

0.1uF

10K 1/ 16W

3

U406

VCC3.3

R489

R490

10K 1/ 16W

VCC3.3

R486

NC

R487

10K 1/ 16W

RST2VCC

GND

1

ASM810MEURF-T

Volume

DDCD_SDA3
DDCD_SCL3

AVDD

U402

8

VDD

7

HOLD#

3

WP#
VSS4SDI

WP

VCC3.3

RIN3

GNDR3

GIN3

GNDG3

SOG3

GNDB3
HSYNC3
VSYNC3

CLK+3

CLK-3

R407 NC
R410 NC

BIN3

SST25VF010-20-4C-SAE

10K 1/ 16W

R431 0 1/16W

R433 NC

R+3
R-3
G+3
G-3
B+3
B-3

R403 390 1%

SDO
CE#
SCK

C421 22pF

14.318MHz

C423 22pF

U401

59
58
56
55
57
54
53
63
64
65
66

39
40
42
43
45
46
48
49
36
37

51

62

C401

0.1uF

61

70

2

71

1

72

6

73

5

19

32

X401

33

102
104

R415

R416

10K 1/ 16W

+5V

R430

1K 1/ 16W

Q404

PMBS3904

VMPLL

44

50

RIN0P

AVDD_DVI

AVDD_DVI

RIN0N
GIN0P
GIN0N
SOGIN0
BIN0P
BIN0N
HSYNC0
VSYNC0
DDCA_SDA
DDCA_SCL

RX2P
RX2N
RX1P
RX1N
RX0P
RX0N
RXCKP
RXCKN
DDCD_SDA
DDCD_SCL

REXT

REFP

REFM

SDO
SCZ
SCK
SDI

RST

XIN

XOUT

MODE[ 0]
MODE[ 1]

R432 0 1/16W

VPLLVDVI

52

4

AVDD_PLL

AVDD_MPLL34AVDD_MPLL

RSDS/LVDS/TTL

GND38GND96GND

GND

13

VDDP

AVDD

67

14

60

VDDP

VDDP

VDDP95VDDP

AVDD_ADC

TSUM57AK

GND41GND

47

116

OUT-L+
OUT-L-

C431

NC

VDDC

103

115

12

68

97

117

VDDP

VDDC

VDDC

VDDC

VDD_OTP

RA1P/LVA2P/R A2
RA1N/LVA2M/RA3
RA2P/LVA1P/R A4
RA2N/LVA1M/RA5
RA3P/LVA0P/R A6
RA3N/LVA0M/RA7

GA3P/LVA3P/GA6
GA3N/LVA3M/GA7

CLKAP/LVB3P/LH SYNC
CLKAN/LVB3M/LVSY NC

CLKBP/LVBCKP/ LCK_ODD

CLKBN/LVBC KM/LDE

BB1P/LVB1P/BB2

BB1N/LVB1M/BB3

BB2P/LVB0P/BB4

BB2N/LVB0M/BB5

PWM2/GPIO_P24
GPIO_P27/PWM1

PWM1/GPIO_P25

PWM0/GPIO_P26

600 OHM

CN404

1
3
5
7

9
11
13

CONN

VCTRL

NC/LVACKP/NC
NC/LVACKM/N C

GA1P/NC/ GA2

GA1N/NC/GA3

GA2P/NC/ GA4

GA2N/NC/GA5

BA1P/NC/BA 2
BA1N/NC/ BA3
BA2P/NC/BA 4
BA2N/NC/ BA5
BA3P/NC/BA 6
BA3N/NC/ BA7

RB1P/NC/RB2

RB1N/NC/RB3

RB2P/NC/RB4

RB2N/NC/RB5

RB3P/NC/RB6

RB3N/NC/RB7

GB1P/NC/ GB2

GB1N/NC/GB3

GB2P/NC/ GB4

GB2N/NC/GB5

GB3P/NC/ GB6

GB3N/NC/GB7

NC/LVB2P/N C

NC/LVB2M/NC

BB3P/NC/BB 6
BB3N/NC/ BB7

GPIO_P22
GPIO_P23
GPIO_P03

GPIO_P16
GPIO_P15

GPIO_P16

GPIO_P17/SAR0
GPIO_P00/SAR1
GPIO_P01/SAR2
GPIO_P02/SAR3

GPIO_P06
GPIO_P07

GPIO_P13
GPIO_P14

DDCROM_SCL
DDCROM_SDA

FB407
600 OHM

FB408

2
4
6
8
10
12
14

VCC1.8

VDDC

+5V

R412
10K 1/ 16W

R417 20K 1/16W

C424 0.1uF

3.9K 1/16W

C430

D401

0.1uF

RLZ36B

1 2

VCC3.3

VCC3.32

VCC3.32

+5V 2,3

10K 1/ 16W

FB401

600 OHM

4.7uF/16V

FB403

600 OHM

R474

1 2

R413

VCC3.3

D402

C403

RLZ36B

+

C404

0.1uF

10uF/16V

VCC3.3

VCC3.3

3.9K 1/16W

C408

600 OHM

FB406

600 OHM

R414

120 1/ 16W

Q401

PMBS3906

R475

C405

0.1uF

VDDP

FB404

C406

0.1uF

+

C409

0.1uF

VDVI

C414

0.1uF

VMPLLVCC3.3

C419

0.1uF

R421 0 1/16W

C410

C411

0.1uF

0.1uF

C415

0.1uF

C420

0.1uF

10K 1/ 16W

LED_G

R476 1K 1/16W

R477 1K 1/16W

VCC3.32

C412

0.1uF

R408

C413

0.1uF

R478 1K 1/16W

R479 1K 1/16W

VCC1.82

11

PA0

107

PA1

108

PA2

109

PA3

110

PA4

111

PA5

112

PA6

113

PA7

114

PA8

98

PA9

99

PA10

100

PA11

101

PA12

105

PA13

106

PA14

89

PA15

90

PA16

91

PA17

92

PA18

93

PA19

94

PB0

9

PB1

10

PB2

15

PB3

16

PB4

17

PB5

18

PB6

2

PB7

3

PB8

5

PB9

6

PB10

7

PB11

8

PB12

118

PB13

119

PB14

120

PB15

121

PB16

122

PB17

123

PB18

124

PB19

125

PB20

126

PB21

127

PB22

128

PB23

1

ESP

80

ESP

OSP

81

OSP

GPO0

88

GPO0

GPO1

87

GPO1

GPO2

86

GPO2

GPO3

85

GPO3

GPO4

84

GPO4

83

GPO5

82

GPO6

75
74
26

35
69
78

R488 NC

79

20
21

22

R418 100 1/16W

23

R420 100 1/16W

24
25

R411 100 1/16W

27

R422 4.7K 1/16W

28

R423 4.7K 1/16W

29
30
31

77
76

R424

10K 1/ 16W

+12V

+12V 2

+5V

+5V 2,3

R484

10K 1/ 16W

OUT-R+
OUT-R-

VCC3.3

R425

10K 1/ 16W

+5V

VCTRL 2

PB[12..23]

AUDIO_MUTE
AUDIO_STBY

R426
10K 1/ 16W

R427 100 1/16W
R428 100 1/16W
R429 100 1/16W

R485
10K 1/ 16W

AUDIO_STBY
AUDIO_MUTE

P[0..7]

PA[8..13]

PA[14..19]

PB[0..5]

PB[6..11]

GPO[0..4]

KEY1
KEY2
POWER

Volume

PA[0..7] 5

PA[8..13] 5

PA[14..19] 5

PB[0..5] 5

PB[6..11] 5

PB[12..23] 5

ESP 5
OSP 5

GPO[0..4] 5

R405

22K 1/ 16W

R406

10K 1/ 16W

on_PANEL_12V 2

DET_DVI 3
DET_VGA 3

on_PANEL 2

on_BACKLIGHT 2
adj_BACKLIGHT 2

U403

8

A0

VCC

7

A1

WP

6

A2

SCL

5

GND4SDA

AT24C16N-10SC-2.7

Option

KEY_AUTO
KEY_RIGH T KEY_LEFT
POWER

OUT-L+
OUT-L-

VCC3.32

DDC_WP 3

Q402

PMBS3904

C422

0.1uF

C425

0.1uF

1
2
3

CN403

1
3
5
7

9
11
13
15

CONN

VCC3.3

R481

R482

NC

NC

BCQ405

NC

E

KEY_AKEY _B

2

LED_ALED_G

4

KEY_MENU

6
8
10

KEY_C

12

OUT-R+

14

OUT-R-

16

GND

R483

NC

KEY2

KEY1

LED_G
LED_A
POWER

C426

KEY AWP

C616

NC

C428

C429

C427

0.1uF

0.1uF

0.1uF

0.1uF

VCC3.3 AV DD

VCC3.32

VCC3.3

R409

120 1/ 16W

Q403

PMBS3906

R480 1.5K 1/16W

FB402

600 OHM

VCC3.3 VPLL

R419 0 1/16W

FB405

600 OHM

LED_A

KEY_AUTO

KEY_RIGH T

KEY_MENU

KEY_LEFT

C407

0.1uF

C416

0.1uF

KEY_A

KEY_B

KEY_C

ViewSonic Corporation

Model

Title
Date Rev:

SCALER

ViewSonic Corporation Confidential - Do Not Copy VG720-1

66

CN406

RGB GND

HSYNC

VSYN C

SYNC GND

DDC SCL

DDC SDA

1/3shield
2/4shield
0/5shield

clk shield

DAT0+

DAT1+

DAT2+

DAT3+

DAT4+

DAT5+

JACK DVI

11

12

13

14

15

HSI

VSI

D408
MLL5232B 5.6V

R
G
B

+5V

HPD

DAT0-

DAT1-

DAT2-

DAT3-

DAT4-

DAT5-

clk+
clk-

1716

MLL5232B 5.6V

25
26
27
29
28
8
15
6
7
14
16

11
3
19
22

18
17
10
9
2
1
13
12
5
4
21
20
23
24

CN405

DB15

1
6
2
7
3
8
4
9
5
10

RED+
RED­GREEN+
GREEN­BLUE+
BLUE-

VGA_CON

D406

SCL_DVI
SDA_DVI
DVI5V
HPD

DAT0+
DAT0­DAT1+
DAT1­DAT2+
DAT2-

DCLK+
DCLK-

2

PC5V

D409
MLL5232B 5.6V

3

C447

0.1uF

PC5V

3

D403
BAV99

C439 0.1uF

1

2

FB409 120 OHM

VCC5V

R471

10K 1/16W

R458 100 1/16W

D426

R472

LL5232B 5.6V 5%

NC

3

D417

D418

BAV99

BAV99

C448

1

1

2

2

0.1uF

FB410 0 1/16W

FB411 0 1/16W

FB412 0 1/16W

3

3

D404
BAV99

C440 0.1uF C 441 0.1u F

C449

0.1uF

2

3

D419
BAV99

1

D414
LL5232B 5.6V 5%

C450

2

1

0.1uF

2

R448

2.2K 1/16W

DET_DVI 4

3

D420
BAV99

1

D405
BAV99

ESD_5V

1

C442

33pF

R455 100 1/16W
R456 100 1/16W

D415
LL5232B 5.6V 5%

3

D421
BAV99

C451

1

2

0.1uF

R438

75 1/16W

R446 1 K 1/16W

R449

2.2K 1/16W

3

D422
BAV99

C452

1

2

0.1uF

R439

75 1/ 16W

R447 1 K 1/16W

C443

220pF

D416
LL5232B 5.6V 5%

3

D423
BAV99

C453

1

2

0.1uF

R440

75 1/ 16W

D411
MLL5232B 5.6V

DVI5V

C445

0.1uF

R462 10 1/16W
R463 10 1/16W
R464 10 1/16W
R465 10 1/16W
R466 10 1/16W
R467 10 1/16W

R468 10 1/16W
R469 10 1/16W

3

D424
BAV99

C454

1

2

0.1uF

R434 56 1/16W

R435 56 1/16W

R436 56 1/16W

R437 470 1/16W

R441 100 1/16W

R442 100 1/16W

R443 100 1/16W

+5V

R444

10K 1/16W

D410
MLL5232B 5.6V

D412
MLL5232B 5.6V

R457

10K 1/16W

+5V 2,4

R445 10 0 1/16W

B+ 4
B- 4
G+ 4
G- 4
R+ 4
R- 4

CLK+ 4
CLK- 4

ESD_5V

C432 0.047uF

C433 0.047uF

C434 0.047uF

C435 0.047uF

C436 0.047uF

C437 0.047uF

C438 0.047uF

SCL_VGA

SDA_VGA

+5V

1 2

R470

1K 1/16W

D425

RLZ36B

DDCA_SDA4
DDCA_SCL4

DDCD_SDA4
DDCD_SCL4

RIN 4

GIN 4

BIN 4

SOG 4

GNDR 4

GNDG 4

GNDB 4

DET_VGA 4

HSYNC 4

VSYNC 4

R450

10K 1/16W

R453 100 1/16W
R454 100 1/16W

10K 1/16W

R459

R451

10K 1/16W

10K 1/16W

R460
10K 1/16W
10K 1/16W

+5V

PC5V

1

2

D407

BAV70

3

R452

R461

U404

8

VCC

7

WP

6

SCL

5

GND

SDA

M24C02

+5V

DVI5V

1

2

D413

BAV70

3

U405

8

VCC

7

WP

6

SCL

5

SDA

M24C02

R473

NC

A0
A1
A2

GND

C444

1

0.1uF

2
3
4

DDC_WP 4

C446

1

A0
A1
A2

0.1uF

2
3
4

DDC_WP 4

ViewSonic Corporation

Model

Title
Date Rev:

INPUT

ViewSonic Corporation Confidential - Do Not Copy VG720-1

67

+12V

ON/OF F

47K 1/10W

DIM

R210

C206
NC

GND

C201

0.1uF/25V

Q201

DTC144WK A

Q202

DTA144WKA

C202

0.1uF/25V

R211
NC

C209

33uF/50V

+

R212

62K 1/10W

C208

0.1uF/25V

IC201

TL1451ACD

C207
330pF

R207

10K 1/10W

R208 0 1/10W

R209 0 1/10W

C203

+

470uF/ 25V

4.7K 1/10W

2IN-

SCP

REF

2IN+

2FEEDBAC K

CTRT1IN+

1IN-

1FEEDBA CK

1234567

C204

0.1uF/ 25V

R214

12K 1/10W

R213

C210
1uF/25V

10111213141516

2OUT

2DTC

1DTC

1OUT

GND VCC

8 9

R201

2.4K 1/10W

R203

2.4K 1/10W

R232

51K 1/10W

C222

0.47uF/25V

3

1

R202

220 1/10W

C205 1uF/25V

Q204

PMBS3904

LL4148-GS08

R231
12K 1/10W C 223

2

Q203

AOU401L

R204
470 1/10W

D210

Q205

PMBS3906

0.1uF/ 25V

L201 L

D201

RB050L-40

ZD201

RLZ11B

1 2

R205

16K 1/10W

R206
12K 1/10W

R229

680 1/10W

R230
470 1/10W

R221

1.8K 1/4W

Q206

KTC5103L-Y -U/P

D203
1N4148

D205
1N4148

R222

1.8K 1/4W

C221

0.33uF/ 250V

R223

1.8K 1/4W

1.8K 1/4W

Q207
KTC5103L-Y -U/P

D202

1N4148

D204
1N4148

D207
1N4148 D206

R225
1K 1/4W

R226
1K 1/4W

1N4148

R224

PT201

POWER X'FMR

1

8
9

6 12

PT202

POWER X'FMR

1

8
9

6 12

R227
1K 1/4W

11

11

D209
1N4148

TP1
HVO

TP3
HVO

1

1

TP2
HVO

1

C213
18pF/3KV

C214
12pF/3KV

TP4
HVL

1

C211
12pF/3KV

C212
18pF/3KV

D208
1N4148

R228
1K 1/4W

1
2

1
2

1
2

1
2

CN201
CONN

CN202
CONN

CN203
CONN

CN204
CONN

is power GND

is signal GND

ViewSonic Corporation Confidential - Do Not Copy VG720-1

68

ViewSonic Corporation

Model

INVERTER

Title
Date Rev:

3

R901 330K 1/8W

R902

330K 1/8W

VAR901 NC

DB901
KBP206G

32

-+

1 4

L902
L

142

C902

0.001uF/250V

C901

0.001uF/250V

4

3

L901

L

1

2

C903 0.47uF/250V

R900

330K 1/8W

123

CN901
CONN

12

NR901
NTCR

t

FUSE

F901

1 2

C933
NC

C935

0.001uF/250V

C904

+

100uF/450V

ZD901

RLZ18B

R912
100 1/10W

R910

2.2K 1/ 10W

NCP1203D60R 2G

C909

+

47uF/25V

32

C907

0.1uF

R911

3.6K 1/ 10W

Q902

2PA733P

1

R913
75K 1/10W

IC901

R903

3.3K 1/8W

R904

3.3K 1/8W

3.3K 1/8W

8

1

NCP1203D60R2G

472

C912

0.001uF

C908

+

10uF

6

5

3

R919
20K 1/10W

R906
NC

R907
NC

R920
NC

1

+

R915

22 1/10W

R916

220 1/10W

C911
470pF/50V

R914

4.7K 1/ 10W

23

Q903
2PC945P

0.0015uF/2KV

D902
UF4003

C906
100uF/25V

C905

D901

BA159GPT

68 1/10WR905

R917
10K 1/10W

D903

LL4148-GS08

R908
100K 2W

R909

Q901
2SK2645-54NR

R918

0.39 2W

1 2

ZD902
RLZ5.1B

T901
POWER X'FMR

4

5

6
1

2

C900

0.0022uF/250V

43

7

11

9

8

12

10

12

IC902

PC123FY 2 4P

IC903

KIA431A-AT/P

R921
47 1/2W

3

1

R922
47 1/2W

C921

0.001uF/500V

D921
FME-210B

2

C922

0.001uF/500V

3

2

D922

1

FMW-2156

R923
560 1/4W

D923

LL4148-GS08

R924
1K 1/10W

C929

0.1uF

R925
0 1/8W

C930
NC

ZD904
RLZ13B

C923

+

1000uF/25V

C924

+

1000uF/16V

1 2

R931
1K 1/10W

+

1 2

R932

1K 1/10W

L903

C931
1000uF/25V

L904

ZD905

RLZ5.1B

D924

LL4148-GS08

L

C925

+

L

R934
NC

C934
NC

470uF/25V

C926

+

470uF/16V

R930

3.6K 1/10W

R933

2.4K 1/10W

R929
33K 1/10W

1 2

ZD903

PTZ9.1B

R926
NC

C932

0.47uF/25V

R927
NC

CN902
CONN

1
2
3
4
5
6
7
8

C928

0.1uF

C927

0.1uF

F902
0 1/8W

ON/OF F

+12V

+5V

+12V

+5V

DIM

GND

ViewSonic Corporation Confidential - Do Not Copy VG720-1

69

ViewSonic Corporation

Model

Title
Date Rev:

A-D POWER

/SD

CN601

PHONEJ ACK

ROUT- ROUT+

C603

+12V

GND

C606

+

0.1uF/ 16V

C611 1uF/16V

C613 1uF/16V

C614 1uF/16V

C616 1uF/16V

C619 1uF/16V

AVDDRef

FB609

600 OHM

10uF/50V

0.001uF

C625

600 OHM

GND

C607

C642

0.01uF

NC

48

U601

BSRN

1

/SD

2

RINN

3

RINP

4

V2P5

5

LINP

6

LINN

7

AVddREF

8

VREF

9

VARDIFF/AGND

10

VARMAX/AGND

11

VOLUME

12

REFGND

BSLN13PVCCL14PVCCL15LOUTN16LOUTN17PGNGL18PGNGL19LOUTP20LOUTP21PVCCL22PVCCL23BSLP

C626

+

0.01uF

GND

GND

C644

FB610

NC

600 OHM

C631

0.001uF

GND GND

5V

R601

10K 1/16W

R602

0 1/16W

+

C601

10uF/50V

R609

10K 1/16W

5
1
2
3
4

C635

NC

C636

NC

VOLUME

39K 1/16W

39K 1/16W

R610

10K 1/16W

R611

R612

R608
1K 1/16W

FB608
600 OHM

GND

+12V

RIN

C612

0.001uF

C615

0.001uF

LIN

AVDDRef

FB601

600 OHM

10uF/50V

600 OHM

FB606
600 OHM

R606

NC

C624

1uF/16V

C605

FB605

FB602

47

C627

0.1uF/ 16V

45

PVCCR46PVCCR

C602 0.001uF

C634 NC

PGNGR42PGNGR43ROUTN44ROUTN

TPA3003D2PFBR

GND

C633 NC

C630 0.001uF

41

FB604

600 OHM

PVCCR38PVCCR39ROUTP40ROUTP

VCLAMPR

MODE_OUT/NC

MUTE

AVcc

VAROUTR/ NC

VAROUTL/NC

AGND

AVdd

COSC

ROSC

AGND

VCLAMPL

C628

0.1uF/ 16V

GND

FB612

600 OHM

C632

0.001uF

C604

0.001uF

GND

C643

NC

C610

1uF/16V

AVDD

C622

220pF

R607
120K 1/16W

C623 1uF/16V

ROUT­ROUT+
LOUT­LOUT+

C609

0.1uF/ 16V

GND

GND

+12V

C618

0.1uF/ 16V

GND

C638NCC639NCC640

C617

+

10uF/50V

GND

AVDD

R603
NC

4
3
2
1

CONN

CN603

MUTE /MOD E

2
4
6

8
10
12
14

CN602
CONN

5V

R604 0 1/16W

R605
NC

/SD

LOUT+ ROUT+
LOUT- ROUT-

C641

NC

NC

FB607

600 OHM

VOLUMEMUTE/ MODE

+12V

GND

+

C620

470uF/16V

C621

0.1uF/ 16V

1
3
5
7
9
11
13

GND

C608

0.01uF

GND

37

BSRP

36

35

34

33

32

31

30

29

28

27

26

25

24

C629

0.01uF

C645

NC

GNDGND

LOUT+LOUT-

ViewSonic Corporation

Model

Title
Date Rev:

AUDIO

ViewSonic Corporation Confidential - Do Not Copy VG720-1

70

LED ORAN GE

LED GREEN

3

4

LED001

LED

2

1

SW001

SW

SW002

SW

SW003

SW

SW004

SW

GND

SW005

SW

SW006

SW

SW007

SW

GND

SW008

SW

LCD ON/OFF

KEY 2

KEY 1

KEY D OWN

KEY U P

VOLUME -

VOLUME +

MUTE

CN001

1

2

3

4

5

6

7

8

9

10

11

GND

CONN

ViewSonic Corporation

Model

Title

Date Rev:

KEY PAD

ViewSonic Corporation Confidential - Do Not Copy VG720-1

71

11. PCB Layout Diagram

11.1 MAIN BOARD PCB TOP VIEW

ViewSonic Corporation Confidential

72

-

Do Not Copy VG720-1

11.2 MAIN BOARD PCB BUTTON VIEW

ViewSonic Corporation Confidential

73

-

Do Not Copy VG720-1

11.3 KEYBOARD TOP VIEW

11.4 KEYBOARD BUTTON VIEW

ViewSonic Corporation Confidential

74

-

Do Not Copy VG720-1

11.5 POWER PCB TOP VIEW

ViewSonic Corporation Confidential

75

-

Do Not Copy VG720-1

11.6 POWER PCB BUTTON VIEW

ViewSonic Corporation Confidential

76

-

Do Not Copy VG720-1

11.7 AUDIO PCB TOP VIEW

ViewSonic Corporation Confidential

-

77

Do Not Copy VG720-1

11.8 AUDIO PCB BUTTON VIEW

ViewSonic Corporation Confidential

78

-

Do Not Copy VG720-1

*Readers Response*

Dear Readers:

Thank you in advance for your feedback on our Service Manual, which allows continuous improvement

of our products. We would appreciate your completion of the Assessment Matrix below, for return to

ViewSonic Corporation.

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

Assessment

1.

Precautions and Safety Notices

2. Specification

Front Panel Function Control Description

3.

4. Circuit Description

5.

Adjustment Procedure

6. Troubleshooting Flow Chart

7. Recommended Spare Parts List

8. Exploded Diagram and Exploded Parts List

9. Block Diagram

10. Schematic Diagrams

11. PCB Layout Diagrams

tinU riaF daB

dooGtnellecxE

B. Are you satisfied with this Service Manual?

metI tnellecxE dooG riaF daB

.1

Service Manual Content

.2

Service Manual Layout

.3

The form and listing

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

Readers basic data:

Name: Title:

Company:
Add.:

Tel:
E-mail:

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

1-909-839-7943.
([e-mail])

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

Fax:

in the USA at facsimile

ViewSonic Corporation Confidential

79

-

Do Not Copy VG720-1