AOC L42W781HS User manual

42‟‟ LCD TV AOC L42W781HS
1
Service
Service
Service
Horizontal Frequency
31.5KHz to 48KHz
TABLE OF CONTENTS
Description Page Description Page
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
6.3.IR Board………………………………………….......32
6.4.Tuner Board…………..………………..……….......33
6.5.Key Board……………………………….……….......35
6.6.Side Board…………………………….……….......35
7. White-Balance, Luminance Adjustment......................36
8. Block Diagram.………….............................................38
9. Schematic………………....…….……..………………..39
9.1 Main Board…….……………..….…………….….......39
9.2. Power Board………………….……….………….......46
9.3.Key Board……….……….……….………….......47
9.4. Tuner Board…………..….…….…….………….........48
9.5. Side Board……………….………..….………….......53
10. Exploded View..………………...........................…..54
11. BOM list.………….........................…..……………….55
Table Of Contents.......……..............................…........1
Important Safety Notice.......................................……......2
Revision List.…........................................……...... 3
1. General Specification..............................………........4
2. Operating Instructions…………………….……….......5
2.1. The Use Of Remote Control…….………….…….......5
2.2. To Use The Menu…...…………………….……….....6
2.3. How To Connect…….…………………….……….....15
2.4. Front Panel Control Knobs……………….……….....18
3. Input/Output Specification…………....................…....19
4. Mechanical Instructions…………………….................21
5. Repair Flow Chart ……………………….…….…….....25
6 PCB Layout ………………..………………....….......29
6.1.Main Board…………..…………..……….……….......29
6.2.Power Board……………..………….……….......31

42‟‟ LCD TV AOC L42W781HS
2
Important Safety Notice
Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service
procedures recommended by AOC and described in this service manual are effective methods of performing service
operations. Some of these service operations require the use of tools specially designed for the purpose. The
special tools should be used when and as recommended.
It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in
order to minimize the risk of personal injury to service personnel. The possibility exists that improper service
methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE
NOT EXHAUSTIVE. AOC could not possibly know, evaluate and advise the service trade of all conceivable ways in
which service might be done or of the possible hazardous consequences of each way. Consequently, AOC has not
undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by AOC must first satisfy himself thoroughly that neither his safety nor the safe operation of the
equipment will be jeopardized by the service method selected.
Hereafter throughout this manual, AOC Company will be referred to as AOC.
WARNING
Use of substitute replacement parts, which do not have the same, specified safety characteristics might create
shock, fire, or other hazards.
Under no circumstances should the original design be modified or altered without written permission from AOC.
AOC assumes no liability, express or implied, arising out of any unauthorized modification of design.
Servicer assumes all liability.
FOR PRODUCTS CONTAINING LASER:
DANGER-Invisible laser radiations when open AVOID DIRECT EXPOSURE TO BEAM.
CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may
result in hazardous radiation exposure.
CAUTION -The use of optical instruments with this product will increase eye hazard.
TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S
REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF
THIS SERVICE MANUAL.
Take care during handling the LCD module with backlight unit
-Must mount the module using mounting holes arranged in four corners.
-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.
-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to
the panel.
-Protect the module from the ESD as it may damage the electronic circuit (C-MOS).
-Make certain that treatment person‟s body is grounded through wristband.
-Do not leave the module in high temperature and in areas of high humidity for a long time.
-Avoid contact with water as it may a short circuit within the module.
-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may
damage the panel.)

42‟‟ LCD TV AOC L42W781HS
3
Revision List
Version
Release Date
Revision Instructions
TPV Model
A00
May.-22-2008
Initial Release
E427ATNBBWA1NNT
E427ATNBBWACNNT

42‟‟ LCD TV AOC L42W781HS
4
1. General Specification
Feature
42” Wide screen
Built-in Full channel Tuner(42” DTV Tuner )
For Digital TV , it could support DVB-T
with DVB-T, Nicam, Teletext.
Graphic (D-SUB)
HDMI
Items
Specification
LCD
Panel
Screen Size
42” TFT-LCD Panel
Aspect Ratio
16:9
Resolution
1366×768 (WXGA)
TV
Function
TV
Tuning
System
Analog
PAL B/G,D/K,I and SECAM D/K, L/L‟ (Multi-Europe)
Full Channel with Electronic PLL Tuner
Digital(For DTV only )
COFDM Band Width: 7/8 MHz Format: MP @ ML
Aspect ratio: 4:3, 16:9 Picture Resolution: 720×576i
Sound
System
Analog
Nicam / A2
Digital(For DTV only )
MPEG(I & II) Sample rate:32/44.1/48KHz
Mode: Mono, Stereo, Dual
Teletext
Yes (1000 Pages)
Color systems
PAL / SECAM
PC Input
Signal Input
D-SUB
PnP compatibility
DDC2B
Input frequency
FH: 31.5KHz to 48KHz
FV: 56Hz to 75Hz
Recommended
1024 x 768 @ 60Hz, (up to 1360 x 768 @ 60Hz)
Input Audio
Headphone Mini-jack for stereo (3.5ø)
Audio
Output
Audio Output: L / R
Speaker (built-in): 10W＋10W
Headphone Mini-jack for stereo (3.5ø)
Line Output (RCA L/R)
DTV S/PDIF(RCA COAXIAL) (For DTV only )
OSD language
English,Germany,Italian,French,Spain,Portuguese,Netherland,Russia
Table Stand
Included
Wall Mount
Yes
Power
Power Supply
AC100V~240V, 50/60Hz
Power Consumption
< 300W
Panel Tilt
Forwards/Backwards/ Rotation
None
Dimensio
n
W x H x D (with stand)
1049.9 mm x 775.95 mm x 123.8 mm
Weight
(net)
Kg (w/o Accessories)
25 kg
Accessories
Remote controller, Batteries (x2), AC Power cord, Operation manual
Video
Inputs
SCART1
SCART2
21 Pin SCART (RGB & CVBS) ×1, (S-Video or CVBS) ×1
HDTV
Y Pb Pr×1 Audio L/R ×1
AV/SV(Side)
CVBS (Composite) ×1 S-Video ×1 Audio L/R ×1
HDMI1
HDMI x 1 (Audio/Video with HDCP)
HDMI2
HDMI x 1 (Audio/Video with HDCP)

42‟‟ LCD TV AOC L42W781HS
5
2. Operating Instructions
2.1. The Use of Remote Control
POWER:
Press to turn on/off the TV. The TV is
never completely powered off unless
it is physically unplugged.
VIDEO
Press this key you could select AV1,
S-VIDEO, HDTV and HDMI.
SCART
Press this key you could select
SCART 1，SCART2，and SCART2-S.
0~9 DIGIT BUTTONS
To select a TV channel.
SUBPAGE
Teletext Sub-page function.
Source
Select your input source from list,
according to where you connected
your external source.
SOUND
T
To o s se el le ec ct t M Mo on no o/ / S St te er re eo o/ /D Du ua al l f fr ro om m T TV V
R
RF F i in np pu ut t. .
DTV MENU
Press this key to display DTV
menu.(for DTV only)
Zoom +,-.
Press these key to select desired
picture format.
(4:3, CINERAMA,16:9……)
VOL
Press + or –to increase or decrease
the volume.
MENU
Press this key to display main menu.
DISPLAY
Press this key to display:
(1) the channel number when watching a TV
program.
(2) the input source when watching an AV
program.
MUTE
Temporarily interrupt the sound or restore it.
PC
Display PC mode.
TV
Display TV or DTV mode.
(DTV mode for the TV which have DTV TV
function only)
PRE-CH
To display the previously selected TV
channel.
EPG
Press this key to display electronic program
guide screen in DTV mode.(for DTV only)
SLEEP
With this key you can set a time period after
which the TV should switch itself to standby.
Press the key repeatedly to select the number
of minutes. The counter runs from off,15, 30,
45, 60, 90, 120 minutes. The timer begins to
count down from the number of minutes
selected after the display has disappeared.
CH
Press + or - (or MENU / button) buttons
to scroll through the channels.
EXIT
Press this key to exit main menu.

42‟‟ LCD TV AOC L42W781HS
6
Teletext is an information service organized like a magazine, which is provided by some TV stations in addition to
regular television broadcasting.
TELETEXT
Press TELETEXT. The Teletext screen appears.
To turn off the Teletext mode, press TELETEXT again.
MIX
Press MIX to superimpose the teletext over a normal broadcast picture. Press again to
return to Teletext mode.
SIZE
Press SIZE repeatedly to display the upper teletext part, the lower teletext part and
then to return to the normal.
RED / GREEN / YELLOW / BLUE
Use the COLOURED BUTTONS to operate the Teletext screen.
INDEX
Press INDEX to return to the main index page.
SUBTITLE
Press to select the next page marked as a subtitle page and request it as the
display page.
HOLD
Press HOLD to hold the Teletext page when viewing information. Press again
to return to automatic page update.
REVEAL
Press REVEAL to display reveal hidden words e.g. quiz page answers.
Press again to hide.
PAGE SELECTION
Page can be selected in two ways.
a. Press ▼or ▲to increase or decrease the page number by one.
b. By entering the page number, using digit buttons 0~9.
i INFO
Press i-INFO to show DTV information.
SUBPAGE ACCESS
When Teletext information exceeds more than one
page, press SUBPAGE first then select the required
page number using digit buttons 0~9.

42‟‟ LCD TV AOC L42W781HS
7
2.2 To Use the Menus
1. Press the MENU button to display or close main menu.
2. Use the cursor up/down to select a menu item.
3. Use the cursor left/right to enter a submenu or enable/disable the function.
4. Press the MENU button to exit the menu.
Main Menu
Press the MENU button to enter the main OSD (On Screen Display). Adjust the items including Picture Setup,
Sound setup,Options Setup, Installation Setup(TV setup) and PC Setup(only in pc mode).
Picture Setup:
Preset : choose between Standard, Mild, Personal,Vivid.
Personal gives access to following adjustments.
Contrast, Brightness, Colour, and Sharpness : adjust these settings as required using the < / > buttons.
Tint : This option is only available for NTSC audio-visual sources.
Reset : Return to default settings.Press OK or < / > buttons to return to default settings.
Press the MENU button to exit the Picture menu.
Note : this menu is removed automatically after a few seconds without using the remote control.
When you adjust a menu option (Contrast for example), the menu is replaced by a sub-menu as illustrated.Press the
OK button to return to the Picture menu.
Sound Setup :
Balance : adjust the balance between left / right channels as required using the < / > button.
Bass : adjust the bass level as required using the < / > button.
Treble : adjust the treble level as required using the < / > button.
SRS WOW : Using < / >, activate(On) or deactivate(Off) SRS function.
SRS is an audio technology which improve the sound quality.
Reset : Return to default settings. Press OK or < / > buttons to return to default settings.

42‟‟ LCD TV AOC L42W781HS
8
Press the MENU button to exit the Sound menu.
Note : this menu is removed automatically after a few seconds without using the remote control.
SRS WOW, SRS and (0) are registered trademarks of SRS Labs, Inc.
This product is designed using SRS technology with permission from SRS Labs, Inc.
Options Setup:
This menu allows to select the language for the menus as well as the colour of the screen when there is no video
input. It allows also to set an automatic shut-off time.
Menu Language : To select the language for the menus.
Menu Timeout : To set an automatic shut-off time for Menu. Using < / >buttons select 5>10>20>30>40>50 seconds.
Menu Background : Select Opaque or Transparent type.
Sleep Timer : To set an automatic shut-off time. Using < / > buttons select Off >15>30>45>60>90>120 minutes.
Once the time is ended, TV set automatic switch on standby mode.
If you turn the TV on standby mode after setting the sleep timer, setting will be erased. Set it again.
Bule screen : To have a blue screen when there is no video input or when the RF signal is very bad.
Using < / > buttons select On.
Select Off if you do not want the blue screen.
Teletext Language : Using < / > buttons, select the character set that will be used for Teletext on this channel.
The character set determines how characters are displayed on Teletext screen.
Reset : Return to default settings. Press the OK or < / > buttons to return to default settings.
Press the MENU button to exit the Options menu.
Note : this menu is removed automatically after a few seconds without using the remote control.

42‟‟ LCD TV AOC L42W781HS
9
PC Setup :
In PC Setup, main menu is different from the one in TV Installation Setup(TV setup). Please select PC as main input.
H Position : use the < / > buttons to move the picture horizontally on the screen.
V Position : use the < / > buttons to move the picture vertically on the screen.
Clock : Press < / > to adjust the clock timing.
Phase : use the < / > buttons to move the picture phase on the screen.
Auto Sync : this function is used to automatically adjust the VGA input. Press the < / > buttons to start the adjustment
process.
Colour temp. : to select the colour temperature at your convenience.
Reset : Return to default settings. Press the OK or < / > buttons to return to default settings.
Installation Setup :
Installation Setup involes selecting all the settings required to be able to search for and store all the channels you
can receive.
Make sure that the television is switched on and follow all the steps in turn specified on this page.
Auto. Installation : Select Auto. Installation. Press OK button to display the
Auto. Installation.
Country : Select the relevant country using the < / > buttons.
This is the country you are in, or the country whose channels you want to
receive if you live near its borders. If you do not find your country , select Auto.
Start : Press the OK button to start channels searching.
R Gain
G
Gain
B
Gain

42‟‟ LCD TV AOC L42W781HS
10
Select Man. Installation using the button.
Press the OK button to display the Manual. Installation menu.
Use the / buttons to select each option.
Prog. Number : Allow to select the program on which you want save a new
channel or a program you want to modify.
Using the < / > buttons, select the program.
Frequency : Allows to enter a specific frequency for tuning.
Using the botton, select the Frequency option and press the OK button. Using the 0-9 digit and the < / > buttons,
enter desire frequency and press
the OK button.
Name : Allows to edit the channel name.
Using the button, select the Name option.
Using the > botton select the first letter field.
By pressing the 0-9 digit repeatedly and using the following table select the first character.
Repeat the procedure for each letter field.
Press the OK button to confirm.
Store prog. : Allows to Save a channel on a new Program No., to Insert a
channel on an already existing Program No.(the channel previously saved
on this program no. will be shifted to the upper program no.) or to Delete the
Program No.
Once a channel has been found and named, use the botton to select the Store prog. option.
Using the < / > buttons, select Save, Insert or Delete and press the OK button
to confirm.
Swap prog : Allows to swap 2 programme numbers.
Using the / buttons select the Prog. number option.
Using the < / > buttons, select the program to be moved.
Using the \/ botton, select the Swap prog option.
Using the OK botton, enter the swap function.
Using the 0-9 digit, enter the new programme number(3 digits).
Press the OK button to confirm, the programme numbers are swapped.
Norm : Allows to change the audio norm.
Using the button, select the Norm option.
Using the < / > buttons, select the norm.
Note : the following norms are available to choose from : I for the UK and Ireland, L/LP for France and Luxembourg,
D/K for Eastern Europe, the Middle
East and Asia, B/G for Western Europe, Australia and New Zealand.
Skip : Allows to skip a channel.

42‟‟ LCD TV AOC L42W781HS
11
Using the button, select the Skip option.
Using the < / > buttons, select On, the channel will be skip.
Skip : Allows to skip next channel when it is on, and Using the < / > buttons,
select store prog: ok.
Repeat this procedure to skip other channels.
Fine tuning : If the picture is not clear, you can adjust the setting.
Using the button, select the Fine tuning option.
Using the < / > buttons to find the good tuning point.
Manual Search : Allows to launch a manual search.
Using the button, select the Manual Search option.
Using the < / > buttons, start the search in decreasing or increasing order.
The search will stop at the first channel found.
If you wish to memorise the channel, select Store Program option using the
button and proceed as indicated in previous page. Otherwise, continue the
search using < / > buttons.
INPUT SELECTION
To select TV/VIDEO source:
To select desire input source, press the SOURCE button to display the
selection menu.
Using the / buttons to select each input sources.
Press the OK button to display the desire input source.
Digital TV Menu
First-Time Installation
When the system is first switched on, the Reference Application attempts to configure itself for the first time. This is
called ”First Time Installation”.
The user is then asked if they wish to perform an automatic tune for services. Automatic tuning functionality is
described later in this document. When the automatic tune finishes and services have been found, the lowest
number service is selected and a banner describing that service is shown. A user may have chosen not to perform
an automatic tune or no services may have been found by an automatic scan. In this instance the user may use the
“Main Menu” to automatically scan again or perform a manual scan. The Reference Application also provides the
facility for the user to force to trigger a “First Time Installation”. This facility can be found in the “Main Menu” under
the “Installation” option.
Main Menu
Channel list
Favourites
Guides
Settings
Common Interface
(for DTV only)

42‟‟ LCD TV AOC L42W781HS
12
A “Main Menu” is provided to enable the user to configure elements of the Reference Application. In “normal
viewing” operation a user can access the “Main Menu” by pressing the “DTVMENU” key. The “Main Menu” is
hierarchically organized into categories in order to fit on the screen.
Channel List
A user may configure the Reference Application to use exclusively TV, Radio or Data services, this feature is know
as channel List Model.
A user can select a channel List Mode using the configuration dialog; it is permitted to select a channel List Mode
that contains no services.
When the channel list mode is enabled the program up and down buttons on the remote control will only select those
services in the current channel List Mode. And all EPGs will only show those services in the current Channel List
Mode. It is still possible to select a service using the services even if it is not a member of the currently selected
channel List Mode. Note that if the user has selected a favourites list then the Channel List Mode acts as a filter on
top of the selected favourites list.
Please press the OK button on your remote control to tune to the highlighted channel. Press DTV MENU to exit this
screen.
Edit Favourites Lists
A favourites list enables the user to select a subset of services they consider favourite. The Reference Application
allows the user to have up to five different favourites lists. Favourites lists are defined in the favourites dialog that
can be accessed by selecting the favourites button on the channel list dialog and via the Main Menu.
Press the OK button on your remote control to add the channel to the highlighted favourites list. An icon indicates
which favourites list a channel is in.
Guides
Now/Next EPG
List Schedule EPG
Time line schedule EPG
Now/Next EPG
An EPG dialog is provided that allows the user to view the current and next programme playing on each service.
In this dialog a list of channels and the corresponding current and next programmes is displayed. The user can
navigate up and down the list of channels and highlight either the now or next programme. Information for the
highlighted programmes can be displayed by pressing “Info”. This information includes the start/end time of the
programme, the programme genre in brackets, and a synopsis of the programme content.
A user may select a service by highlighting a program in the „now” list and pressing the “OK” key.
Pressing the “SUBTITLE” key the user may select a genre to highlight events with the selected genre in the EPG.
The Now/Next Electronic Program Guide cannot be accessed if there are no services available.
List schedule EPG
User can set up Program schedule list
Time Line Schedule EPG
Extended Schedule EPG information is presented using a list format, either on a banner for the current service, or as
a full screen dialog showing multiple services.
Settings
Configuration
Language
Installation
Configuration
Time Zone: Press RIGHT/LEFT to select the time zone you are in. Press DTV MENU to exit this screen. (Inc.
GMT/CET)
DST: Press RIGHT/LEFT to select or deselect DST mode, Press DTV MENU to exit this screen.
Subtitle: Press RIGHT/LEFT to select subtitle on or Off, Press DTV MENU to exit this screen.
Banner: 2/4 seconds.

42‟‟ LCD TV AOC L42W781HS
13
Favorite Mode: Press RIGHT/LEFT then select to choose favourite mode. Press DTV MENU to exit this screen.
Please remember that at least one favourite channel be selected before turning favourites on.
Channel List: Press RIGHT/LEFT then select to choose channel list mode, you can select show all channel, TV
only, Radio only and Text only, Press DTV MENU to exit this screen.
Parental Settings: Press SELECT to enter the parental lock menu. Press DTV MENU to exit this screen.
If you don‟t know how to use above function, you can select iinfo button in remote control for get information, press
iinfo button again will exit.
Language Settings
System: To change the system languages, this changes the language used in all menus and dialogs.
Noted: Pan Europe system language include: English, German, French, Italian, Spanish, Danish, Norwegian,
Swedish, Finish, Portuguese, Polish and Dutch.
UK system language includes: English, Welsh and Gaelic.
Audio: Displays a dialog enabling the preferred language to be set, this is the language to be used for all channels if
it is available.
Subtitle: Displays a dialog enabling the preferred language to be set, this is the language to be used for all channels
if it is available.
Current: Displays a dialog enabling the current language to be set, this is the language to be used for the current
selected channel, please note that only languages available with the currently selected channel will be displayed.
Installation
Automatic Search
Manual Search
First Time Installation
Automatic Search
Automatic search is the ability for the reference application to scan each other (Frequency) for services.
Whilst performing an automatic tune no service will be selected. A dialog is displayed during automatic tuning that
shows the progress of the scan through the channels.
The user may cancel automatic tuning. If the previous list already stored, the lowest number from the service list, it
will return to “normal viewing” operation.
The Reference Application can support up to 70 services at any one time.
When you select Automatic search, press OK button in remote control, and will start to automatic search.
Manual search
Manual Search
Signal Quality:
Signal Level
Channel Number:
Manual tuning:
Do you want to start automatic search? Your
Previous channel list will be replaced.
YES
No

42‟‟ LCD TV AOC L42W781HS
14
Manual search allows the user to scan an individual channel (frequency) for services .The user can perform a
manual tune by selecting an option on the “Main Menu”. Whilst performing a manual tune no service will be selected.
The user enters the channel number to be scanned; only those channels supported by the tuner may be entered.
The Manual tuning dialog displays a bar indicating the quality and strength of the signal of the currently selected
channel. The user can then choose to scan the selected channel for services; a separate dialog is displayed
showing the service found whilst scanning is taking place. Newly discovered services are merged with the current
list of services. The user may cancel manual tuning; in such cases any newly discovered services are disregarded.
When a manual tune is complete the application will attempt to select the previously selected service and return to
“normal viewing” operation. In cases were there was not a previously selected service the application will attempt to
select the service with the lowest number.
The Reference Application can support up to 70 services at any one time.
Press 0 to 9to select a channel number; select to start searching for channels, DTV MENU to exit this screen.
First time installation
Choose this will return to the original condition, you can choose country as first time in installation. And search
channel again. When you select it, you will see as following:
Common Interface
If no CA module is inserted, then the system display “No common interface mode detected”.
If a CA module without a smartcard is inserted. Then the system displays “Please insert your smartcard.
If a CA module with a smartcard is inserted. Then the CI menu is displayed. Using this menu. The user can read the
smartcard contents. The data shown depends on CA vendor and CA smartcard version.
Are you sure your want to delete all channels and
settings for first time installation?
YES
No
Common Interface

42‟‟ LCD TV AOC L42W781HS
15
2.3 How to Connect
Lay the LCD TV with the screen down on a table, as it will be easier to connect your peripheral equipment. Please
take your precautions not to damage the screen.
1: Audio output
2: SPDIF output(appear in Digital TV )
3: SCART2(CVBS)/SCART2-S
4: SCART1(RGB/CVBS)
5:DTV(appear in Digital TV )
6:ATV
7: Component video(HDTV)
8: Component Audio
9: VGA
10: VGA Audio input
11: HDMI2
12: HDMI1
13: AC power
14:S-Video
15:AV1(CVBS)
16:AV1/S-video Audio intput
17:HEADPHONE
18:CI card

42‟‟ LCD TV AOC L42W781HS
16
SCART CONNECTION
CONNECTION
VIDEO RECORDER
How to connect
1. Connect the antenna cable to the RF IN port of your VCR.
2. Connect another RF cable from the port of your VCR to the antenna port of you ATV set. If you have connected
the video/audio cable to the video AV port, you may have better sound and picture when playing the VCR.
If your VCR has an S-VHS video jack:
For improved picture quality, connect a S-Video cable with the S-Video input on the ATV.
S-Video does not provide audio, audio cables must still be connected to provide sound(AV and S terminal share one
audio input).
Watching VCR
1. If you use connection ATV, select the TV channel auto search.
2. If you use connection AV, select video AV1 input.
3. Insert videotape in the VCR and press the PLAY button.
How to connect
1. The SCART socket can be connected a VCR, a camcorder, a DVD player, a satellite receiver, a decoder or a
game console form SCART cable.
2. The 21pin SCART socket can also be used as an output to Audio/Video equipment.
How to use
Scart source has the first priority. For example: when playing under other sources such as TV/AV/S-Video/VGA, if
we input the scart signal, the TV will switch to Scart menu automatically.
CAMERA CAMCORDER VIDEO GAME SET
How to connect
1. Connect the camera, camcorder and game set to the ports of the audio/video set.
2. The camcorder may get better picture by connecting a S-VHS cable between the S terminal and the Audio set.
How to use it
1. Select the video AV or S terminal input.
2. Enable the exterior AV equipment.
Warning: In case you notice scrolling images, wrong colors or no color, no picture or even combinations of these, on
your screen, check if the connections are done in the right way. Check if the cable colors match with the Input
connector colors.

42‟‟ LCD TV AOC L42W781HS
17
WALL Mount
Use of Wall Mount Bracket:
1.Remove the units M4.0 screws.
2.Remove the base ass‟y.
3.Fasten four units M6.0 X 10mm screws to secure the wall mount bracket.
1. The headphone jack is located at the side of the TV.
2. The MUTE key on the remote control works on both internal speaker and the headphone.
3. Use volume key to adjust the volume.
TIPS
Care of the screen
Do not rub or strike the screen with anything hard as this may scratch, mar, or damage the screen permanently.
Unplug the power socket before cleaning the screen. Dust the TV by wiping the screen and the cabinet with a soft,
clean cloth. If the screen requires additional cleaning, use a clean, damp cloth. Do not use liquid cleaners or aerosol
cleaners.
Mobile telephone warning
To avoid disturbances in picture and sound, malfunctioning of your TV or even damage to the TV, keep away your
mobile telephone from the TV.
End of life directives
We are paying a lot of attention to produce environmentally friendly in green focal areas. Your new receiver contains
materials which can be recycled and reused.
At the end of its life specialized companies can dismantle the discarded receiver to concentrate the reusable
materials and to minimize the amount of materials to be disposed of.
Please ensure you dispose of your old receiver according to local regulations.

42‟‟ LCD TV AOC L42W781HS
18
2.4 Front Panel Control Knobs
1, 2: + / - Key :Press to confirm your function selection and adjustment.
3, 4: Up / Down Key :Press to perform select function and channel.
5: MENU Key :Press to show the OSD menu and exit OSD menu.
6: Source Key : Press to select your input source.
7: Power Key : Press to turn on or off the TV.

42‟‟ LCD TV AOC L42W781HS
19
3. Input/Output Specification
3.1 RGB Signal input
15 - Pin Color Display Signal Cable
Pin No.
Description
Pin No.
Description
1
Red Video
9
No Pin!
2
Green Video
10
Sync Ground
3
Blue Video
11
Not Used
4
Not Used
12
Serial Data for DDC
5
Ground
13
H-Sync.
6
Red Video Ground
14
V-Sync.
7
Green Video Ground
15
Serial Clock for DDC
8
Blue Video Ground
1
6
11
15
5
10

42‟‟ LCD TV AOC L42W781HS
20
3.2 Factory Preset Timing table
Mode
Resolution
Horizontal
Vertical
Frequency (Khz)
Frequency (Hz)
D-Sub
640 x 480@60
31.469
59.94
D-Sub
640 x 480@72
37.861
72.809
D-Sub
640 x 480@75
37.5
75
D-Sub
720 x 400@70
31.469
70.087
D-Sub
800 x 600@60
37.879
60.317
D-Sub
800 x 600@72
48.077
72.188
D-Sub
800 x 600@75
46.875
75
D-Sub
1024 x 768@60
48.363
60.004
D-Sub
1024 x 768@75
60.023
75.029
D-Sub
1360 x 768@60
47.712
60.015
HDMI-->DVI
640 x 480@60
31.469
59.94
HDMI-->DVI
640 x 480@72
37.861
72.809
HDMI-->DVI
640 x 480@75
37.5
75
HDMI-->DVI
720 x 400@70
31.469
70.087
HDMI-->DVI
800 x 600@60
37.879
60.317
HDMI-->DVI
800 x 600@72
48.077
72.188
HDMI-->DVI
800 x 600@75
46.875
75
HDMI-->DVI
1024 x 768@60
48.363
60.004
HDMI-->DVI
1024 x 768@75
60.023
75.029
HDMI-->DVI
1360 x 768@60
47.712
60.015