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User Manual: AT4220A

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Acer AT4220A/4220B/4220 LCD TV
Service Guide

Service guide files and updates are
available on the ACER/CSD web. For
more information, please refer to http:/
/csd.acer.com.tw

PRINTED IN TAIWAN

Revision History
Please refer to the table below for the updates of LCD TV AT4220A service guide.
Date

Chapter

Updates

Copyright
Copyright© 2006 by Acer Incorporated. 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 Acer
Incorporated.

III

Disclaimer
The information in this guide is subject to change without notice.
Acer Incorporated makes no representations or warranties, either expressed or implied, with
respect to the contents hereof and specifically disclaims any warranties of merchantability or
fitness for any particular purpose. Any Acer Incorporated software described in this manual is
sold or licensed “as is”. Should the programs prove defective following their purchase, the buyer
(and not Acer Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary
servicing, repair, and any incidental or consequential damages resulting from any defect in the
software.

Acer is a registered trademark of Acer Incorporated.
Other brand and product names are trademarks and/or registered trademarks of their respective
holders.

Conventions
The following conventions are used in this manual.

SCREEN MESSAGES

Denotes actual messages that appear on screen.

NOTE

Gives bits and pieces of additional information
related to the current topic.

WARNING

Alerts you to any damage that might result from
doing or not doing specific actions.

CAUTION

Gives precautionary measures to avoid possible
hardware or software problems.

IMPORTANT

Reminds you to do specific actions relevant to the
accomplishment of procedures.

Preface
Before using this information and the product it supports, please read the following general
information.
1. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION

decided for Acer's “global” product offering. To better fit local market requirements and enhance
product competitiveness, your regional office MAY have decided to extend the functionality of a
machine (e.g. add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT
be covered in this generic service guide. In such cases, please contact your regional offices or the
responsible personnel/channel to provide you with further technical details.
2. Please note WHEN ORDERING FRU PARTS, you should check the most up-to-date information available

on your regional web or channel. For whatever reason, if a part number change is made, it will not be
noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may
have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You
MUST use the list provided by your regional Acer office to order FRU parts for repair and service of
customer machines.

Chapter 1

System Specification
Specification
LCD Panel
•

Max. resolution: 1366 x 768

•

Display color: 16.7 million colors

•

Life time: 60,000 hours

•

Input signal: one-channel LVDS

•

Contrast ratio: 1000/1 (Min)

•

Brightness: 4000 Cd/m2 (Min)

•

Response time: AUO typical gray to gray Tr=8ms (Max.)

•

Viewing angle: 89o (L)/89o (R), 89o (U)/89o (D)

I/O Functions
•

RCA jack (YUV and CVBS) for YPbPr, YCbCr, video and audio

•

15-pin D-sub for VGA

•

24-pin DVI/HDCP for DVI-D (optional)

•

19-pin HDMI connector (optional)

•

DIN45325 (IEC169-2) terminal for TV/CATV input

•

3.5 mm earphone jack for audio line input

Video Functions
•

PAL/NTSC/SECAM video format support

•

480i/576i, 480p/576p, 1080i and 720p format support

•

Built-in dynamic adaptive smoothing filter

•

Built-in dynamic temporal frame-filter noise reduction

•

Built-in dynamic motion and edge adaptive de-interlacing

•

Screen display model 16:9 / 4:3 / panorama / zoom / PIP / POP

Mechanical
•

VESA mounting holes

Multi-Sound System
•

MTS (NTSC), FM-FM

Power Source
•

Input voltage: 90~264V, 47~63Hz

Chapter 1

•

Power consumption: 291W

•

Stand-by: 5W Max.

Remote Control
•

Multi-function remote control

Speaker
•

Internal speaker: 10W x 2

•

Amplifier: 10W x 2 stereo, adjustable volume

Others
•

On-screen display adjustment function

•

ISP (In System Programming) function available for revising driver easily

Chapter 1

System Block and Wiring Diagram
PANEL

INVERTER

I/O Board

POWER
Module

MAIN Board

A-Tuner
AV 1
AV 2

Component1
Component2

SPEAKER

Chapter 1

IR Receiver

Key Board

LCD Main Board Block Diagram

Chapter 1

LCD TV Overview
AT4220A/AT4220B/AT4220 Front Panel View

Item

Description

Power On/Off

Powers on or off the LCD TV.

Menu key

Turns the OSD menu on and off.

Channel up/down

Channel up: When the OSD is on, functions the same as the Up
arrow.
Channel down: When the OSD is on, functions the same as the
Down arrow.

Volume +/-

Volume up: When the OSD is on, functions the same as the Right
arrow.
Volume down: When the OSD is on, functions the same as the Left
arrow.

Input key

When is OSD is on, press this button to confirm selection.

Chapter 1

AT4220A Rear Panel View

Item

Power switch

PC Audio-in

AC-in

AV-Audio L/R + COMPONENT 1/2

HDMI

AV-Audio L/R + CVBS 1/2

VGA-in

Analog antenna

DVI-D

Chapter 1

AT4220B Rear Panel View

Item

Power switch

Audio L/R + CVBS + COMPONENT 1/2

AC-in

Audio L/R + CVBS + COMPONENT 1/2

HDMI

Audio L/R + CVBS 1/2 + S-Video

VGA-in

Analog antenna

PC Audio-in

Chapter 1

Item

AT4220 Rear Panel View

Item

Power switch

PC Audio-in

AC-in

AV-Audio L/R + CVBS + COMPONENT

HDMI

SCART

VGA-in

Analog antenna

Chapter 1

Remote Control
AT4220A

1
2

4
5

12
14

Item

Description

POWER

Press to turn your TV on/off.

DISPLAY

Press to display input/channel information (dependent on input/
source type).

MUTE

Press to toggle audio on and off.

Input buttons (TV/AV/
COMPONENT/PC)

Press to select correct input mode.

SLEEP

Press to set a time period after which the TV will switch itself to
standby (15, 30, 45, 60, 90 or 120 minutes).

Number keys

Press to select the TV channel.

Chapter 1

RECALL

Press to return to the previous channel.

ENTER

Press to confirm channel number selection.

Press to open or close the Menu.

Press to select close caption and text service between CC1, CC2,
CC3, CC4, Text1, Text2, Twxt3, Text4.

Directional keys/OK
VOL (up/down)
CH (up/down)

N/A

WIDE

Press to toggle scaling mode between 4:3, 16:9, Panorama and
Letterbox 1, 2, 3 modes.

MTS

Press to switch the sound system between stereo, main and SAP.
Information is displayed on the top right-hand corner.

e (Empowering
Technology)

Press to activate Acer Empowering Technology.

VOL (+/-)

Press to increase or decrease the volume.

CH (up/down)

Press to sequentially select the TV channel.

PIP/PBP/POP

Switch between PIP/PBP/POP modes.

SWAP

For PIP/PBP mode: Toggle between the primary and sub-screens.

ACTIVE

Toggle between primary and sub-screens.

POSITION

When in PIP mode: Change sub-screen position.

SIZE/MODE

When in PIP mode: Change sub-screen size. When in POP mode:
Switch POP mode from 1+5 to 1+12.

Chapter 1

AT4220B

1
2

4
5

12
14

Item

Description

POWER

Press to turn your TV on/off.

DISPLAY

Press to display input/channel information (dependent on input/
source type).

MUTE

Press to toggle audio on and off.

Input buttons (TV/AV/
COMPONENT/PC)

Press to select correct input mode.

SLEEP

Press to set a time period after which the TV will switch itself to
standby (15, 30, 45, 60, 90 or 120 minutes).

Number keys

Press to select the TV channel.

RECALL

Press to return to the previous channel.

ENTER

Press to confirm channel number selection.

Chapter 1

Press to open or close the Menu.

TTX/MIX (TELETEXT/
MIX)

Press to return to the previous channel.

Directional keys/OK
VOL (up/down)
CH (up/down)

N/A

WIDE

Press to toggle scaling mode between 4:3, 16:9, Panorama and
Letterbox 1, 2, 3 modes.

MPX

Press to select the sound input, displayed in the top right-hand
corner (mono, stereo, bilingual).

e (Empowering
Technology)

Press to activate Acer Empowering Technology.

VOL (+/-)

Press to increase or decrease the volume.

CH (up/down)

Press to sequentially select the TV channel.

PIP/PBP/POP

Switch between PIP/PBP/POP modes.

SWAP

For PIP/PBP mode: Toggle between the primary and sub-screens.

ACTIVE

Toggle between primary and sub-screens.

POSITION

When in PIP mode: Change sub-screen position.

SIZE/MODE

When in PIP mode: Change sub-screen size. When in POP mode:
Switch POP mode from 1+5 to 1+12.

Teletext

Item

Description

Color buttons (R/G/Y/B)

Operates corresponding button on the teletext page.

INDEX

Press to go to the index page.

SIZE

Press once to zoom teletext page to 2X. Press again to resume.

SUBTITLE

Press to view subtitles on the screen.

SUBPAGE

Press to access the teletext’s sub-pages directly.

HOLD

Press to pause the current teletext page in multi-page viewing
mode.

REVEAL

Press to reveal hidden teletext information.

Chapter 1

AT4220

1
2

4
5

Item

Description

POWER

Press to turn your TV on/off.

DISPLAY

Press to display input/channel information (dependent on input/
source type).

MUTE

Press to toggle audio on and off.

Input buttons (TV/AV/
SCART/PC)

Press to select correct input mode.

SLEEP

Press to set a time period after which the TV will switch itself to
standby (15, 30, 45, 60, 90 or 120 minutes).

Number keys

Press to select the TV channel.

RECALL

Press to return to the previous channel.

ENTER

Press to confirm channel number selection.

Press to open or close the Menu.

TTX/MIX (TELETEXT/
MIX)

Press to return to the previous channel.

Chapter 1

Directional keys/OK
VOL (up/down)
CH (up/down)

N/A

WIDE

Press to toggle scaling mode between 4:3, 16:9, Panorama and
Letterbox 1, 2, 3 modes.

MPX

Press to select the sound input, displayed in the top right-hand
corner (mono, stereo, bilingual).

VOL (+/-)

Press to increase or decrease the volume.

CH (up/down)

Press to sequentially select the TV channel.

Teletext

Item

Description

Color buttons (R/G/Y/B)

Operates corresponding button on the teletext page.

INDEX

Press to go to the index page.

SIZE

Press once to zoom teletext page to 2X. Press again to resume.

SUBTITLE

Press to view subtitles on the screen.

SUBPAGE

Press to access the teletext’s sub-pages directly.

HOLD

Press to pause the current teletext page in multi-page viewing
mode.

REVEAL

Press to reveal hidden teletext information.

Chapter 1

Basic Connection
Connecting the Power Cord
1. Connect the AC cord into the AC input on the back of the set.
2. Connect the male plug to the wall outlet as shown.

For AT4220A

For AT4220B

Chapter 1

For AT4220

Connecting an Antenna/Cable
Connect the antenna cable to the appropriate antenna terminal on the back of the TV set as
shown below.

Getting Started Watching Your TV

1
3

1. Select the setup language you prefer.

Chapter 1

2. Please select country.
3. Ensure that your co-axial cables connected correctly before proceeding.
4. Scan for analog channels.
5. Setup is now complete. You are ready to begin watching TV.

If you leave the setup process before it is complete, you will be given a choice of options:
1. Resume setup.
2. Resume setup wizard at next startup.
3. Exit and do not remind me.

Select an option and press OK to exit.

Description

Power
a. Turn on the power switch beneath the screen.
b. Press the power button, number keys or channel up/down button on the remote control.
good

Setup Wizard
The first time you switch on the TV, the Setup Wizard will guide you to complete the
language selection and channel scanning. Press OK key to begin the setup process.

Changing channels
a. Press 0-9 on the remote control to select a channel. The channel changes after 2 seconds.
Press ENTER to select the select the channel immediately.
b. Pressing the channel (CH) up/ down button on the remote control will also change the
channel.

Adjusting the volume
Adjust the volume level using the (VOL) +/- button on the remote control.

Chapter 1

Connecting External Audio/Video Device
Connecting a DVD, VCR, STB or Audio/Video Equipment
Connect your DVD player, VCR or audio/video equipment using the SCART port located at the
rear of your LCD TV as shown below.

For AT4220A
Source-IN

Yellow

Red

White

Blue

Green

S-video

Note: Acer recommends the following priority for connection types: HDMI > D-sub > COMPONENT >

S-Video > Composite.

Chapter 1

For AT4220B

Chapter 1

Yellow

Red

White

Blue

Green

6YLGHR

For AT4220

Source-IN

Yellow

Red

White

Blue

Green

Note: Acer recommends the following priority for connection types: HDMI > COMPONENT > SCART >

Composite.

TV-OUT

Note: SCART-out only works with analog broadcasts.

Chapter 1

Connecting a Camera, Camcorder or Video Game
Connect your camera or camcorder to the video/audio ports on the rear of the TV set as shown
below.

Connecting a PC or Notebook Computer
To display PC output on your TV, please connect your PC or notebook computer to the TV as
shown below.

For AT4220A

Note: For VGA and DVI input, Acer recommends setting your PC’s external monitor resolution to

1360 x 768 at 60Hz.

Chapter 1

For AT4220B

For AT4220

Chapter 1

Selecting the Input Source
Once you have connected your antenna or external equipment to the TV, you need to select the
correct input source. Press the corresponding button on the remote control to select the correct
input source.

For AT4220A/AT4220B

Item

COMPONENT

Input Button Guide

TV key

Toggle Analog TV (ATV) between input sources.

AV key

Toggle AV1, AV2, AV3-CVBS* and HDMI between input sources.

COMPONENT key

Toggle COMPONENT 1, COMPONENT2 and AV3-COMPONENT*
between input sources.

PC key

Toggle VGA between input sources.

For AT4220

Item

Input Button Guide

TV key

Toggle Analog TV (ATV) between input sources.

AV key

Toggle AV1, AV2, AV3-CVBS* and HDMI between input sources.

COMPONENT key

Toggle COMPONENT 1, COMPONENT2 and AV3-COMPONENT*
between input sources.

PC key

Toggle VGA between input sources.

Chapter 1

OSD Navigation
Many of the advanced settings and adjustments are available through using the OSD (on-screen
display) menus, as shown in the example screenshot below.
Basic operations required to navigate these menus (Picture, Audio, Channel management)

Navigating the OSD with the Remote Control

Note: You can also interact with these menus using the front panel controls. Please see “Front Panel

View” section for details.

No.

Icon or Display

Description

There are six main OSD menus. These are: Picture, Audio, Channel management, Options,
Settings and Empowering. Use the following method to navigate these menus.
1

Press the MENU button on the remote control or the
MENU button on the control panel.

Select your desired menu by using the up and down
directional keys to switch between the six menus.

Use the directional keys to interact with the menu. The
up / down directions will scroll through the menu
options, while left / right will adjust the different
settings (for example, in the Picture menus, settings such
as brightness, contrast, etc.) Press MENU to exit.

Adjusting the OSD Settings
The OSD can be used for adjusting the settings of your LCD TV. Press the MENU key to open the
OSD. You can use the OSD to adjust the picture quality, audio settings, channel settings, options,
24

Chapter 1

general settings, and Empowering Technology. For advanced settings, please refer to following
page.

Adjusting the Picture Quality
1. Press the MENU key to bring up the OSD.
2. Using the directional keys, select Picture from the OSD.
Then navigate to the picture element you wish to
adjust.
3. Use the left or right keys to adjust the sliding scales.
4. The Picture menu can be used to adjust the current
Scenario mode, brightness, contrast, color, sharpness
and other image-related qualities.

Adjusting the Audio Settings
1. Press the MENU key to bring up the OSD.
2. Using the directional keys, select Audio from the
onscreen display. Then navigate to the feature you wish
to adjust.
3. Use the left or right keys to adjust the sliding scale. Press
OK to save.
4. The Audio menu can also be used to adjust the treble,
balance, sound effects and other important soundrelated settings.

Adjust the Channel Management
1. Press the MENU key to bring up the OSD.
2. Using the directional keys, select Channel
management from the OSD.
3. Use the directional keys to navigate the menus.
4. The Channel management menu can be used to set
channel skipped, select TV system and scan channels
automatically.

Adjusting other Options
1. Press the MENU key to bring up the OSD.
2. Using the directional keys, select Options from the
OSD.
3. Use the directional keys to navigate the menus.
4. The Options menu can be used to select the picture
aspect-ratio mode, set the sleep timer and other
important options.

Chapter 1

Adjusting the Settings
1. Press the MENU key to bring up the OSD.
2. Using the directional keys, select Settings from the
OSD. Then navigate to the feature you wish to adjust.
3. The Settings menu can be used to adjust the menu
language and other important settings.

Note: The options available on the OSD may vary depending on the TV signal source.

Chapter 1

Empowering Technology
Less than 2 seconds
Default setting in
different mode
Set-up Empowering mode
More than 2 seconds

The Empowering Key brings up the Acer Empowering Technology functions. In TV mode, the
choice is between Scenario mode and Favorite channel.

Set-up Empowering Mode
To change your Empowering Key’s default setting:

Press and hold the Empowering Key for more
than two seconds to open the menu.

TV mode Empowering Key settings menu will
come out.

Use the directional keys to navigate the menu
and select the Empowering Technology icon.

Press MENU to exit. Now, when you press the
Empowering Key, your chosen selection will be
accessed.

Default Setting in Different Empowering Mode
Scenario mode in TV (Default Setting)
Scenario mode has five preset viewing modes designed to give you the best picture quality when
watching a particular kind of program. There are five pre-defined audio and video setting for
Chapter 1

optimal enjoyment of the following scenario: Standard TV, Movie, Sport, Concert, Game, and
User.

Pressing the Empowering Key for less than two seconds will toggle
between the different modes.

Mode

Information

Standard

Standard mode allows you to watch your favorite channels with sharp,
brilliant imagery via adaptive brightness and contrast adjustments, and
listen to clear-sounding audio.

Movie

For comfortably enjoying movies at home, Move mode displays dim
scenes in clear detail; compensates for color; and smoothly presents
motion images. This is accomplished through optimal Gamma correction
plus saturation, brightness and contrast adjustments. Movie mode
makes the most of high-definition movie sound tracks.

Game

Game mode carefully details the exquisite graphics of modern video
games, providing lifelike entertainment while protecting your eyesight
by adjusting brightness and contrast. What’s more, Game mode
provides a heightened audio experience.

Sports

Sports mode us suited for outdoor sports program, with accurate
background depth and clear gradation between the bright, outdoor
playing field and darker auditoriums. Sports mode also brilliantly
enhances colors and preset swiftly moving pictures without residual
images. All of this is achieved via specific Gamma corrections and
saturation adjustments. Precise audio can be heard.

Concert

Concert mode places you in a virtual concert hall, opera house or other
dim environment by means of adaptive brightness and contrast
adjustments. Concert mode accentuates symphonic harmonies and the
tenor audio range.

Favorite Channel Mode in TV
Storing Favorite channels

Select your desired channel, then press
the MENU key on the remote control.

Use the directional keys to navigate the
menu and select the Empowering
Technology icon.

Chapter 1

Navigate to a channel slot, use CH up/
down button or number key to change
channel.
There are a total of five slots in which
you can store TV programs.

Viewing Your Favorite Channels
On the remote control, if you press the
Empowering Key for less than two
seconds, the TV will toggle between the
five stored TV channels sequentially
according to your list of favorites.

Chapter 1

Advanced Features
PIP/PBP/POP
•

Press the PIP/PBP button once to display activate picture-in-picture (PIP).

•

Press twice to activate picture-by-picture (PBP).

•

Press three times to activate picture-on-picture (POP). Then, the POP screens will display the TV channel
programs one by one.

PIP

POP

PBP

POP
POP

PIP (Picture-in-Picture)

PBP (Picture-by-Picture)

POP (Picture-on-Picture)

Note: The OSD menu is not available in PIP/POP/PBP modes.

PIP

1. Press the ACTIVE key to toggle between PIP
screens.
2. Press the TV, AV, COMPONENT or PC keys,
number keys or CH up or down to change the
content of the active screen.
TV

COMPONENT

3. Press the SWAP key to change the content
between the primary and the subscreen.

PIP

Swap

PIP

4. Press the POSITION key to select the location
of the subscreens, from upper left > upper
right > lower right> lower left, as shown in
the image.
PIP

PIP

5. Press the SIZE/MODE key to select the size of
the subscreen, from 25% > 37.5% > 50%, as
shown in the image.
PIP

Chapter 1

PBP

1. Press the ACTIVE key to toggle between PIP
screens.
2. Press the TV, AV, COMPONENT or PC keys,
number keys or CH up or down to change the
content of the active screen.
TV

COMPONENT

3. Press the SWAP key to change the content
between the primary and the PBP screen.

PBP

Swap

PBP

POP

1. Press the ACTIVE key to toggle between POP
screens.
2. Press the number keys or CH up or down to
change TV channel on the active screen.

3. Press the SIZE/MODE key to access the 1+5 or
1+12 picture-on-picture mode as shown in the
image.
1+5
POP

POP

1+12
POP
POP
POP

POP

POP
POP
POP

POP

Note: In PIP and PBP, the VGA and DVI sources only support input up to 1360 x 768 pixels at 60Hz. For

resolution higher than this, “Out of Range” will be displayed. The POP can only support 1+12 when
the main screen source is HD content in VGA mode.

Chapter 1

Lock TV
Locking TV Content
Lock TV is a handy feature that can block all TV sources. Lock TV allows you to enter a password
and effectively stop anyone without the password from watching TV.

If you want to set a personal PIN, please follow the steps below.
1. Press the MENU key on the remote control to bring up the OSD.
2. Use the directional keys to navigate to the Settings menu. Then select Set PIN.
3. Enter a four-digit password. Type it again and press OK to reconfirm.
4. Press MENU to exit.
Note: The default PIN for this TV is “0000.” Enter “0000” when you want to change the PIN. If you

forget your PIN, please enter 6163 to reset.
If you want to lock your TV, please follow the steps below.
1. Press the MENU key on the remote control to bring up the OSD.
2. Use the directional keys to navigate to the Settings menu. Then select Lock TV.
3. Enter your PIN. Type it again and press OK to reconfirm.

Chapter 1

Hardware Specification and Configuration
Electro/Optical
Model

AT4220A

Panel specification
Resolution (pixels)

1366 x 768

Brightness (tpe.)

500 nits

Contrast ratio (tpe.)

1200/1

Display color

16.7 million

Viewing angle

H: 178 degrees
V: 178 degrees

Response (tpe.)

8 ms (gray to gray)

Power supply
Input

110V~240V 50~60Hz

Max. power
consumption

291W

Power saving

Mechanical
Dimensions
(W x H x D mm)

1071 x 794 x 311

Weight (Kg)

32.3

Weight (lbs)

71.15

Wall mounting

400 mm x 200 mm

Analog TV system
TV color system

NTSC

Sound system

Stereo system

BTSC/A2

Closed caption

Yes

V-chip

US/Canada

Analog TV-tuner
quantity

Terminal
Analog tuner in

Yes

AV1

CVBS, S-Video, Audio R/L

AV2

CVBS, S-Video, Audio R/L

COMPONENT1

YPbPr/YCbCr, Audio R/L

COMPONENT2

YPbPr/YCbCr, Audio R/L

HDMI

Yes (HDCP)

DVI

Yes (HDCP)

VGA

Yes

PC audio-in

Yes

Audio system
Speaker

Chapter 1

10W + 10W

Firmware Specifications
Preset Mode for VGA Input
16 factory preset modes for VGA inputs are saved during the manufacturing process.

Preset mode Pixel Format Hor. Freq. (kHz) Hor. Polarity Vert. Freq. (Hz) Vertical Polarity
1
720*400
31.47
70
+
2
640*480
31.47
60
3
640*480
37.861
72
4
640*480
37.50
75
5
640*480
43.4
85
6
800*600
35.156
56
+
7
800*600
37.879
+
60
+
8
800*600
48.077
+
72
+
9
800*600
46.875
+
75
+
10
800*600
53.7
+
85
+
11
1024*768
48.363
60
12
1024*768
56.476
70
13
1024*768
60.023
+
75
+
14
1366*768
47.7
+
60
+
15
832*624
49.7
75
16
1024*768
60.2
75
-

Standard
VGA
VGA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
MAC
MAC

Power Saving
While VGA is selected to input, this LCD TV is equipped with a power management according to
VESA DPMS. There is a delay of 30 seconds before the transition from on-state to power saving
state to avoid unintentionally entering of a power saving state during display resolution and
timing mode changes. During the period of delay, the LED shall indicate green color and OSD will
show “No VGA connection”. Transition from any power saving state to another can be
instantaneous. The recovery from off-state requires no manual power on.

Mode
Power-On
Stand-by
Suspend
Off-state
Power off

Hsync
On
Off
On
Off
ͪ

•

Sync on: normal operation

•

Sync off:

Vsync
On
On
Off
Off
ͪ

Video
Active
Off
Off
Off
ͪ

Power
< 180W
< 5W
< 5W
< 5W
< 5W

Indication
Green
Red
Red
Red
Dark

Recovery time
-<5s
<5s
<5s
Turn on < 5s

Chapter 1

•

Hsync: f < 1KHz, duty cycle > 25%

•

Vsync: f < 10Hz, duty cycle > 25%

The power consumption is valid over the specified voltage and frequency range. Power
consumption is measured from AC source. There are no power saving modes for TV, AV1, AV2,
COMPONENT 1 and 2, DVI and HDMI inputs.

Performance Specifications
The performance is checked at 25oC environment.

White Balance and Uniformity
Set contrast and brightness at maximum.
•

Standard: 10000 degree K (x=280, y=288) on x and y value.

•

Warm: 6500 degree K (x=312, y=329) on x and y value.

•

Cold: 14000 degree K (x=263, y=273) on x and y value.

Display Area, Phase Center and Tilt
•

Display area: 42 inches diagonal

•

H-phase: A-B less than 1.5 mm

•

V-center: C-D less than 1.5mm

•

Tilt: E-F less than 1 mm

B
D

Max. Brightness
The brightness should exceed 350 Cd/m2 while set both of contrast and brightness to max. and
color temperature of Standard is selected. (Typical value would be at 400 Cd/m2).

Acoustical Noise
With the display operation, the sound test is followed the ISO-7779 and shall be less than 35 dB/A
in standard distance of 1 m. Also the display should not emit easily perceptible abnormal sounds.

Power Supply Electrical Specifications
Input Voltage and Frequency Range
•

Operating range of line voltage: AC 90V to 264V, 47Hz to 63Hz

•

Power consumption: under 291W

Chapter 1

Line Fuse
The AC input shall be fused and become electrically open as a result of an unsafe current
condition. This fuse is inside the power supply converter and is not user replaceable, and must be
returned for replacement. This fuse shall be well-selected to handle inrush current for all
combinations of line voltage and frequency.

Overall Dimension
Unit: mm

Environment Requirements
Operating

25o +/- 5o for purity, white point, mis-convergence, luminance
measurements and white uniformity measurement
Operating temperature:
Operating humidity:

0oC to 35oC
10% to 90% (non-condensing)

Storage and Shipping

Storage temperature:
Shipping temperature:
Storage humidity:
Shipping temperature:

-20oC to 60oC
-20oC to 60oC
10% to 90% (non-condensing)
10% to 90% (non-condensing)

Altitude

Operating altitude:
Shipping altitude:
Storage altitude:

0 to 12,000 feet
0 to 40,000 feet
0 to 40,000 feet

Units tested at an altitude up to 12,000 feet must operate at
normal conditions without exhibiting abnormal behavior such as
arcing or shutdown.

Chapter 1

Vibration Test
The packaged display shall be capable of passing sinusoidal vibration test below.
•

Test conditions

•

A duration of 30 minutes in each orientation for the tested unit
•

Top and bottom side (z axis)

•

Left and right side (x axis)

•

Front and rear side (y axis)

Drop Test
The packaged display shall be capable of passing drop test as specified in following specification
without any measurable degradation in performance or detectable mechanical or cosmetic
damage.
Filter: 330 Hz
Dropping way: 1 corner, 3 edges, 6 flats
Dropping height: see the table below

Weight(kg)

Chapter 1

L,R,Up side(cm)

0~9

Corner, edge,
F,R,Btm(cm)
76

9~1

18~27

27~45

45~100

Multi Picture
We only support video on graphic (VGA) multi-picture function. The configuration for multi
picture is listed and described as the tables below.

AV2

Component 2

VGA

DVI

AV1

AV2

HDMI

Component 1

Component 2

Component 1

AV1

Sub

HDMI

Main

VGA

DVI

O : support X: not support
POP(1+5,1+12) Main & Sub Screen Combination
AV2

Component 2

VGA

DVI

Component 1

AV1

Sub

HDMI

TV
AV1

Main

AV2

HDMI

Component 1

Component 2

VGA

DVI

O : support X: not support

Chapter 1

Chapter 2

Machine Disassembly and Replacement
General Information
This chapter contains step-by-step procedures on how to disassemble the AT4220 series for
maintenance and troubleshooting. To disassemble the TV, you need the following tools:
•

Wrist grounding strap and conductive mat for preventing electrostatic discharge

•

Small Philips screwdriver

•

Philips screwdriver

•

Hexagonal screwdriver

•

Tweezers
Note: The screws for the different components vary in size. During the disassembly process, please

group the screws with the corresponding components to avoid mismatch when doing assembly. When
you remove the boards, please be careful not to scrape them.
Warning!The module is drived by high voltage. If you need to handle the module during operation or

just after powered off, you must take proper precautions against electric shock and must not touch the
drive circuit portion and metallic part of module within 10 minutes. The capacitors in the drive circuit
portion remain temporarily charged even after the unit is powered off. If the residual voltage is strong
enough, it could result in electric shock. Thus, we strongly suggest that you put on the wrist ground
strap and put the component on the conductive mat or bag. Besides, please keep the unit grounded
during the whole process of disassembly and assembly.

Before You Begin
Before you proceed with the disassembly procedure, make sure that you do the following steps:
1. Turn off the power to the TV and all peripherals.
2. Unplug the AC adaptor and all power and signal cables from the TV.

Chapter 2

Disassembly Procedures
1. Release the four screws securing the TV Stand.
2. Then remove the TV Stand as the arrows indicate.

3. Release the two screws holding the TV Stand cover.
4. Then remove the TV Stand cover.

5. Release the four screws fastening the right speaker.
6. Push the latch as the arrow indicates and disconnect the right speaker cable then remove the right

speaker.
7. Repeat step 5 and step 6 to remove the left speaker.

Chapter 2

8. Release all the screws marked in red. Then lift the TV back cover as shown.

Chapter 2

9. Release all screws securing the PCB holder.
10. Then remove the PCB holder as the arrows indicate.

Chapter 2

11. Release the four screws holding the I/O board.
12. Then detach the I/O board as the arrow indicates.

13. At first disconnect all the cables that connect to the main board.
14. Release the four screws fastening the main board then detach the main board.

15. Release the eight screws fastening the power board and the grounded wire.
16. Then remove the power board.

Chapter 2

17. Release the two screws holding the IR board then detach the IR board.

18. Release the three screws holding the button board then detach the function board.
19. Detach function key.

20. Disconnect the LVDS cable and release the four screws holding the PCB tray.
21. Then remove the PCB tray with LVDS cable.

Chapter 2

22. Release the five screws securing the right inverter bracket and the inverter board.
23. Carefully disconnect the ten inverter backlight cables and the inverter board FFC.
24. Then detach the right inverter board.
25. Repeat these steps to detach the left inverter bracket and the left inverter board.

26. Release the screws marked in red then remove the right and the left LCD brackets.

27. Release the eight screws holding the LCD then you can remove the LCD.

Chapter 2

Board Placement
Please refer to this section to reconnect all cables when you do the assembly.

1. Speaker cable connector: The other ends of this cable link to the two speakers.

Chapter 2

2. LVDS cable connector: The other end of this cable links to the LVDS board.

3. Inverter cable connector: This is a three-end cable. The other two ends link the right inverter and the

power board. We define this cable as Inverter R to Power Board to Main Board. Please refer to the
photos below.

Chapter 2

4. Main board to power board cable (eight pins and seven pins): The other end of this cable links to the

power board.
5. Main board to power board cable (14 pins and 10 pins): The other end of this cable links to the power

board too.

6. Main board to function board to IR board cable: The other two ends of this cable link to function board

and IR board.

Chapter 2

7. Power board to left inverter board cable: The other end of this cable links to the left inverter board.

Please refer to the photos below.

Chapter 2

Chapter 3

Troubleshooting
Use the following procedure as a guide for Acer LCD TV AT4220 series problems.
Note: The diagnostic tests are intended to test this model. Non-Acer products, prototype cards, or

modified options could occur false errors and invalid system responses.
1. Duplicate symptom and obtain the failing symptoms in as much detail as possible.
2. Distinguish symptom. Verify the symptoms by attempting to re-create the failure by running the

diagnostic test or by repeating the same operation.
3. Disassemble and assemble the unit without any power sources.
4. If any problem occurs, you can perform visual inspection before you follow this chapter’s instructions.

You can check the following:
•

Power cords are properly connected and secured;

•

There are no obvious shorts or opens;

•

There are no obviously burned or heated components;

•

All components appear normal.

5. Use the following flow chart determine which part to be replaced.

Chapter 3

Symptoms
Can Not Power on
A

Power code
Plug in?

Check Power code

LED Bright?

Replace Power board or Main board
Or IO board or All cable
/

LED Bright
Green color ?

Check Remote control
and keypad ?

Replacement M/B

Replacement Remote control or
IR board or Keypad board

LCD Panel
can Display ?

Check panel’s
all cable

Replacement Cable

Check M/B

Replacement Panel

Replacement M/B

END

Chapter 3

LCD No Backlight
B

Inverter power
Cable had Plug in

LCD Panel Backlight

Change Inverter
Power Cable

Replacement Power/B

Bright ?

LCD Panel Backlight
Bright ?

no
Replacement LCD
Panel Inverter /B

LCD Panel Backlight

Replacement Main/B

Bight

END

Chapter 3

Remote Control No Function
C

Remote Control have
battery?

IR Board Cable plug in

Press Remote Menu Key
OSD can Display?

Change Battery

Check IR/B cable or
Replacement IR/B
Cable

Replacement IR/B

Press Remote Menu Key
OSD can Display?

Replacement M/B

END

Chapter 3

Button Keys No Function
D

Key Board Cable
plug in

Press Menu Key check
have Function?

Check K/B cable or
Replacement K/B Cable

Replacement K/B Cable

Press Menu Key check
have Function?

Replacement K/B Cable

End
End

Chapter 3

RF No Display
E

RF Cable

plug in

Check RF cable or
Replacement RF Cable

Replacement I/O board

RF Can Display

Replacement M/B

END

Chapter 3

COMPONENT1 and COMPONENT2 No Display
F

Component Cable
plug in?

Check Component cable
or Replacement
Component Cable

Replacement I/O Board

Component cat display

Replacement M/B Board

END

Chapter 3

AV1 and AV2 No Display
H

CVBS Cable
plug in?

Check CVBS cable or
Replacement CVBS
Cable

Replacement I/O Board

CVBS cat display

Replacement M/B Board

END

Chapter 3

Speaker No Sound
H

Audio R/L source
had plug IN?

Video can Display ?

Check Audio R/L
source cable

Check Video cable or
Replacement Video Cable

Mute turn off
Volume set 50

Speaker R/L cable
plug IN?

Speaker have Sound

Check Speaker cable or
Replacement Speaker cable

Replacement IO/B or Speaker

Output

Speaker have Sound
Output ?

Replacement M/B

END

Chapter 3

VGA No Display
P

VGA Cable
plug in?

Check VGA cable or
Replacement VGA
Cable

Read EDID DATA

EDID Data Normal?

Write EDID data

VGA can display?

Replacement M/B

END

Chapter 3

DVI No Display
Q

DVI Cable
plug in?

Check DVI cable or
Replacement DVI Cable

Read EDID DATA

EDID Data Normal?

Write EDID data

DVI can display?

Replacement M/B

END

Chapter 3

HDMI No Display
R

HDMI Cable
plug in?

Check HDMI cable or
Replacement HDMI
Cable

Read EDID DATA

EDID Data Normal?

Write EDID data

HDMI can display?

Replacement M/B

END

Chapter 3

HDMI No Sound
L

HDMI Cable
plug in ?

Check HDMI cable or
Replacement HDMI CABLE

Read EDID DATA

EDID Data
Normal ?

Write EDID data

Sound output?

Replacement Main/B

END

Chapter 3

VGA/DVI No Sound
M

PC/DVI can Display ?

Check Video cable or PC or
Replacement VGA/DVI cable

Mute turn off
Volume set to 50

Audio Line in
Cable Plug IN?

Sound Normal ?

Check Line in cable or
Replacement Line in Cable

Replacement Main/B

END

Chapter 3

COMPONENT No Sound
Z

Component Cable
plug in?

Check Component cable
or Replacement
Component Cable

Mute turn-off
Volume =30
Earphone remove

Component Source
can Display?

Check Component cable
or Replacement
Component Cable

Component Sound
Normal?

Replacement IO/B

Component Sound
Normal?

END

Chapter 3

AV1/S-Video No Sound
1

AV1/S-Video/R-L
Cable plug in?

Check Video and R-L
cable or Replacement
Video or R-L Cable

Mute turn-off
Volume =30
Earphone remove

AV1/S-Video Source
can Display?

Check Video and R-L
cable or Replacement
Video or R-L Cable

AV1/S-Video Sound
Normal?

Replacement IO/B

AV1/S-Video Sound
Normal?

END

Chapter 3

Chapter 4

FRU (Field Replaceable Unit) List
This section gives you the FRU (Field Replaceable Unit) list in global configurations of AT4220
series. Please refer to this chapter whenever ordering for parts to repair or for RMA (Return
Merchandise Authorization). Please note that WHEN ORDERING FRU PARTS, you should check the
most up-to-date information available on your regional web or channel. For whatever reasons a
part number change is made, it will NOT be noted on the service guide. For Acer authorized
service providers, your Acer office may have a different part number code from those given in the
FRU list of this printed service guide. You MUST use the local FRU list provided by your regional
Acer office to order FRU parts for repair and service of customer machines.
Note: To scrap or to return the defective parts, you should follow the local government ordinance or

regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to
return it.

Chapter 4

Parts
Partname

Description

Acer Part No.

REMOTE CONTROLLER - EU

REMOTE CONTROL EURT54BEACQT1

25.M25V7.001

REMOTE CONTROLLER - USA

REMOTE CONTROLLER (EURT54BCACQT1)

25.M28V7.001

REMOTE CONTROLLER - AUS

REMOTE CONTROLLER (EURT54BAACQT1)

25.M38V7.001

POWER BOARD

"PWR 291W,DPS-291AP A(90~264VAC)"

55.M34V7.001

IR BOARD

JL7 IR/B ASSY(FOR HV7)

55.M25V7.003

FUNCTION BOARD

JL7 KEYPAD/B ASSY

55.M25V7.002

IO/TURNER BOARD - PAL EU

HH6 IO/B ASSY(EU)

55.M12V7.004

IO/TURNER BOARD - NTSC NA

HH6N IO/B ASSY(US)(FOR HV2N)

55.M28V7.001

IO/TURNER BOARD - PAL AU

HH6A IO/B ASSY(PAL-AUSTRALIA)

55.M12V7.005

MAIN BOARD - PAL EU FOR AU

HV7 M/B ASSY(EU)(FOR HV4E) AU

55.M34V7.002

MAIN BOARD - NTSC NA FOR
AU

HH2 M/B ASSY(US)(FOR HV4N)AU

55.M36V7.001

MAIN BOARD - PAL AUS FOR
AU

HH2 M/B ASSY(AUS)(FOR HV4A)AU

55.M40V7.001

LVDS CABLE - PANEL TO MB
FOR AU

CABLE ASSY HX4E LVDS AUO(20P/30P REV1A)

50.M34V7.001

INVERTER CABLE - INVERTER L
TO POWER

"CABLE ASSY HX4E INV-PANEL AUO 12P/
10P,2A"

50.M34V7.002

INVERTER CABLE - INVERTER R
TO POWER TO MB

"CABLE ASSY HX4E INV AU(14P/10P/4P,2A)"

50.M34V7.003

CABLE - MB TO POWER
BOARD 10P/14P

CABLE ASSY HH7 MB-POW LG(10P/14P 1A)

50.M24V7.005

CABLE - MB TO KEY TO IR

"CABLE ASSY HV4 MB/IR/BTN(10/9/8,REV1A)"

50.M34V7.004

SPEAKER CABLE

"CABLE ASSY HH2 SPEAKER 2P/3P,4P,1A "

50.M12V7.005

CABLE - AUDIO TO POWER
BOARD 8P/7P

CABLE ASSY HX4 AUDIO/POWER(8P/7P
REV1A)

50.M34V7.005

GROUND CABLE

"CABLE ASSY HV9 GND(1P/1P,2A)"

50.M34V7.006

CABLE - SCART TO SCART

"CABLE ASSY SCART-SCART VA1(20P/
20P,R3A)"

50.M03V7.019

POWER CODE - AUSTRALIA

POWCORD(AUST)3P V54AB300012180Q1
1.8M

27.M12V7.001

Accessory

Board

Cable

POWER CODE - US

POWER CORD SP-305+IS-14SVT 3P 1.8M US

27.M03V7.004

POWER CORD EU 3 PIN

POWER CORD SP-023+IS-14H05VV-F3P 1.8M
EU

27.M03V7.002

POWER CORD UK 3 PIN

POWER CORD SP-60+IS-14H05VV 3P 1.8M
UKLF

27.M03V7.003

POWER CORD SWISS 3 PIN

POWER CORD(SWISS) 3P 1.8M(BLACK)

27.M11V7.001

POWER CORD ITALY 3 PIN

POWER CORD SP-028+IS-14H05VV 3P1.8M ITLF

27.M03V7.001

FRONT BEZEL ASSY

HV4 LCD-BEZEL ASSY

60.M34V7.001

BACK COVER ASSY

AH4T BACK COVER ASSY

60.M34V7.002

Case/Cover/Bracket Assembly

Chapter 4

STAND ASSY

HV4 STAND ASSY

60.M34V7.003

STAND COVER

"STAND COVER HX4(EAHX4004,REV3B)"

42.M34V7.001

STAND BRACKET

"STAND BKT HX4(FAHX4008,REV3A)"

33.M34V7.001

LCD BRACKET - L

"PANEL BKT AUO L HX4(FAHX4005,REV3C)"

33.M34V7.002

LCD BRACKET - R

"PANEL BKT AUO R HX4(FAHX4004,REV3C)"

33.M34V7.003

MAIN PCB TRAY

"CHASSIS HX4(FAHX4001,REV3B)"

33.M34V7.004

PCB HOLDER - PAL EU

"SHIELDING (EU) HV4E(FAHV4002,REV3A)"

33.M34V7.005

PCB HOLDER - NTSC NA

"SHIELDING (NA) HV4N(FAHV4001,REV3A)"

33.M36V7.001

PCB HOLDER - PAL AUS

"SHIELDING AU HX4(FAHX4013,REV3C)"

33.M40V7.001

WIRE SADDLE CHA-4

"WIRE SADDLE CHA-4
VV3(EBVV3006,REV3A)"

42.M03V7.012

WIRE SADDLE MWS-7

"WIRE SADDLE MWS-7
VV3(EBVV3010,REV3A)"

42.M03V7.013

FUNCTION KEY

"FUNCTION KEY HV7E(EBHV7001,REV3A)"

42.M25V7.001

"LCD(TFT)42"" T420XW01 VER0"

56.M34V7.001

SPEAKER ASSY L

SPEAKER ASSY HX4E (FS-0000085AB)

23.M34V7.001

SPEAKER ASSY R

SPEAKER ASSY HX4E (FS-0000085AA)

23.M34V7.002

POWER LABEL

"LABEL (POWER) HV4(HCHV4001,REV3A)"

40.M34V7.001

I/O TURNER LABEL -PAL EU

"LABEL I/O TUNER EU
HV9(HCHV9003,REV3A)"

40.M25V7.002

I/O TURNER LABEL - NTSC US

"LABEL I/O TUNER NA
HV9(HCHV9004,REV3A)"

40.M28V7.002

I/O TURNER LABEL - PAL AUS

"LABEL I/O TUNER AU
HV9(HCHV9005,REV3A)"

40.M38V7.001

"CLAMP AUO-R/L
HX4(FBHX4002,REV3A)"

"CLAMP AUO-R/L HX4(FBHX4002,REV3A)"

47.M34V7.001

"CLAMP AUO-D
HX4(FBHX4003,REV3A)"

"CLAMP AUO-D HX4(FBHX4003,REV3A)"

47.M34V7.002

"EMI CONTACT PAD
HX4(JXHX4001,3A)"

"EMI CONTACT PAD HX4(JXHX4001,3A)"

47.M34V7.003

"EMI GASKET LVDS
HX4(GBHX4002,3A)"

"EMI GASKET LVDS HX4(GBHX4002,3A)"

47.M34V7.004

"EMI GASKET UP
HX4(GBHX4003,3A)"

"EMI GASKET UP HX4(GBHX4003,3A)"

47.M34V7.005

"EMI GASKET DOWN
HX4(GBHX4004,3A)"

"EMI GASKET DOWN HX4(GBHX4004,3A)"

47.M34V7.006

"EMI GASKET POWER
HX4(GBHX4005,3A)"

"EMI GASKET POWER HX4(GBHX4005,3A)"

47.M34V7.007

SCREW M4.0*6.0-B(NI)

86.M08V7.005

SCREW T4*12-B(BNI)

86.M25V7.003

SCREW M3*6-B(BNI)

86.M08V7.003

SCREW T3*12-P (BNI)

86.M34V7.001

LCD
LCD TFT 42.0 IN. AU T420XW01
VER0
Speaker

Label

Miscellaneous

Screw

Chapter 4

SCREW M4*6 P (NI)

86.M01V7.002

SCREW M4*22B(BNI+WASHER+SPRING)

SCREW M4*22-B(BNI+WASHER+SPRING)

86.M34V7.002

SCREW T4*12-B(BNI)

86.M25V7.003

"NUT IO
EA1(MBEA1001,REV3D)"

"NUT IO EA1(MBEA1001,REV3D)"

86.M25V7.001

SCREW T3*8-B(BNI)

86.M08V7.007

SCREW M3*6-B(BNI)

86.M08V7.003

SCREW F3.0*6-B(NI)

86.M25V7.002

Chapter 4

Exploded Diagram of AT4220 Series
Please refer to the following table and exploded diagram.

Partname

Description

Acer Part No.

Q’TY

FRONT BEZEL ASSY

HV4 LCD-BEZEL ASSY

60.M34V7.001

LCD TFT 42.0 IN. AU
T420XW01 VER0

"LCD(TFT)42"" T420XW01 VER0"

56.M34V7.001

"CLAMP AUO-R/L
HX4(FBHX4002,REV3A)"

47.M34V7.001

PANEL BKT AUO L HX4

N/A

PANEL BKT AUO R HX4

N/A

MAIN PCB TRAY

"CHASSIS HX4(FAHX4001,REV3B)"

33.M34V7.004

POWER BOARD

"PWR 291W,DPS-291AP
A(90~264VAC)"

55.M34V7.001

MAIN BOARD - NTSC NA
FOR AU

HH2 M/B ASSY(US)(FOR HV4N)AU

55.M36V7.001

IO/TURNER BOARD NTSC NA

HH6N IO/B ASSY(US)(FOR HV2N)

55.M28V7.001

SCREW M3*6-B(BNI)

86.M08V7.003

PCB HOLDER - NTSC NA

"SHIELDING (NA)
HV4N(FAHV4001,REV3A)"

33.M36V7.001

BACK COVER ASSY

AH4T BACK COVER ASSY

60.M34V7.002

SCREW T4*12-B(BNI)

86.M25V7.003

RATING LABEL HV4

N/A

I/O TURNER LABEL -PAL
EU

"LABEL I/O TUNER EU
HV9(HCHV9003,REV3A)"

40.M25V7.002

POWER LABEL

"LABEL (POWER)
HV4(HCHV4001,REV3A)"

40.M34V7.001

SCREW T3*8-B(BNI)

86.M08V7.007

"NUT IO
EA1(MBEA1001,REV3D)"

"NUT IO EA1(MBEA1001,REV3D)"

86.M25V7.001

SCREW M4*22B(BNI+WASHER+SPRING)

86.M34V7.002

STAND BRACKET

"STAND BKT
HX4(FAHX4008,REV3A)"

33.M34V7.001

STAND COVER

"STAND COVER
HX4(EAHX4004,REV3B)"

42.M34V7.001

STAND ASSY

HV4 STAND ASSY

60.M34V7.003

"CLAMP AUO-D
HX4(FBHX4003,REV3A)"

47.M34V7.002

SCREW M4.0*6.0-B(NI)

86.M08V7.005

SPEAKER ASSY L

SPEAKER ASSY HX4E (FS0000085AB)

23.M34V7.001

SPEAKER ASSY R

SPEAKER ASSY HX4E (FS0000085AA)

23.M34V7.002

SCREW M3*6-B(BNI)

86.M08V7.003

IR BOARD

JL7 IR/B ASSY(FOR HV7)

55.M25V7.003

FUNCTION BOARD

JL7 KEYPAD/B ASSY

55.M25V7.002

Chapter 4

FUNCTION KEY

"FUNCTION KEY
HV7E(EBHV7001,REV3A)"

42.M25V7.001

WIRE SADDLE CHA-4

"WIRE SADDLE CHA-4
VV3(EBVV3006,REV3A)"

42.M03V7.012

WIRE SADDLE MWS-7

"WIRE SADDLE MWS-7
VV3(EBVV3010,REV3A)"

42.M03V7.013

SCREW T3*12-P (BNI)

86.M34V7.001

Chapter 4

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Creation Date                   : 2000:07:26 10:11:41Z
Mod Date                        : 2006:09:08 15:09:07+08:00
Producer                        : Acrobat Distiller 5.0.5 (Windows)
Author                          : Peter Yao
Metadata Date                   : 2006:09:08 15:09:07+08:00
Creator                         : Peter Yao
Title                           : SG_AT4220A_Cover.fm

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