Service Manuals, User Guides, Schematic Diagrams or docs for : AOC LCD L47H861 AOC+L47H861

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AOC+L47H861


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47LCD TV                                                                                                                  AOC L47H861



Service
Service
Service




                                                                                                                   Horizontal Frequency
                                                                                                                            31~60 kHz

                                                             TABLE OF CONTENTS

Description                                                       Page        Description                                               Page

Table Of Contents......................................................1      6.1.Main Board................................................24
Important Safety Notice...................................................2   6.2.Power Board..............................................27
Revision List.........................................................3       6.3.Key Board.............................................30

1. General Specification...............................................4      6.4.IR Board................................................30
                                                                              7. White-Balance, Luminance Adjustment...................31
2. Operating Instructions.........................................5
                                                                              8. Block Diagram..................................................33
2.1. The Use Of Remote Control.................................5
                                                                              9. Schematic.....................................................34
2.2. To Use The Menu...............................................6
                                                                              9.1 Main Board....................................................34
2.3. How To Connect................................................8
                                                                              9.2.Power Board..................................................49
2.4. Front Panel Control Knobs.................................13
                                                                              9.3.Key Board................................................53
3. Input/Output Specification.......................................14        9.4.IR Board......................................................54
4. Mechanical Instructions.........................................16         10. Exploded View..............................................55
5. Repair Flow Chart ..............................................19         11. BOM List.....................................................56
6. PCB Layout .....................................................24         12.Different Parts List..........................................81



                                                              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




                                                                         1
47LCD TV                                                      AOC L47H861
                             Revision List

   Version   Release Date    Revision Instructions      TPV Model

    A00      July.-31-2008       Initial Release     E478MZNKW8A52N

                                                     E478MZNKW8AENN
    A01      Sep-28-2008         Add ne BOM
                                                     E478MZNSW8AENN




                                   2
47LCD TV                                                                                               AOC L47H861
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.)




                                                            3
47LCD TV                       AOC L47H861
1. General Specification




                           4
47LCD TV                                                             AOC L47H861

2. Operating Instructions
2.1 The Use of Remote Control

POWER                                           PREV CH
Press to power ON/OFF (standby)                 Press to display the previous TV .
TV.(Note:1.TV is never completely
 power off.                                     MTS/SAP
unless physically unplugged.                    Press to activate the NTSC TV
2.Press to turn on TV after the power           sounds, such as: Stereo, SAP or
on status LED had changed to the                Mono tone. And languages of DTV.
red color and stopped flashing. )
                                                WIDE
VIDEO                                           Press to choose the display aspect
Press repeatedly to choose                      as: Normal, Wide, Zoom or Cinema
S-Video/Composite source mode (Video            mode.
1 ~ 2).
                                                SOURCE
COMP                                            Press repeatedly to choose the
Press repeatedly to choose Component            various input sources (Video 1 ~ 6).
source mode (Video 3 ).
                                                EPG
PC/HDMI                                         This function is not support.
Press repeatedly to choose VGA or
HDMI source mode (Video 4 ~ 6).                 MUTE
                                                Press to set TVsound mute ON/OFF
TV
Press to choose ATSC/NTSC TV source             DISPLAY
mode.                                           Press to show the information about
                                                the input source channel
                                                                 TV          display
0 ~ 9 /- number                                 resolution and current time.
Press to enter TV channel number to
select channel (Press `-' to indicate           VOL- / VOL+
choosing the sub-channel).                      Press + or - to adjust the volume.

SLEEP                                           Exit
Press to set a time period (off/5 min /10       Press to exit menu or OSD.
min /15 min /30min/45 min
/60min/90min/120 min /180 min /240              V-CHIP
min)after which the TV should switch            Press to lock / unlock Parental
itself to standby mode.                         Control temporarily. (After setting the
                                                restricted table of MPAA or TV
FREEZE                                          Rating.)
Press to freeze the displayed picture
                                                VIDEO ADJ
CH-/ CH +                                       Press to choose the Brightness or
Press + or - to browse through the TV           Contrast adjustment.
channels.
                                                AUDIO ADJ
MENU                                            Press    to    switch  the      ATSC
Press to open or exit menu.                     multi-channel TV sounds.

"","","","", "ENTER                             CC
Press to adjust the various function            Press repeatedly to change the
items on the menu.                              closed caption type as CC ON/CC
                                                OFF/CC ON WHEN MUTE.

                                                 FAVORITE
                                                Press to toggle the Favorite/Normal
                                                mode.




                                            5
47LCD TV                                                                                     AOC L47H861
2.2 To Use the Menus
1. Press the MENU button to display the main menu
2. Use the cursor up/down to select a menu item.
3. Use the cursor left/right to enter a submenu.
4. Press the ENTER button to enable/disable the function.
5. Press the MENU or EXIT button to exit the menu.

Press the MENU button to enter the main OSD (On Screen Display). Adjust theitems including Setup menu, Video
menu, Audio menu and Feature menu.However, some function items in the menus may only be enabled in the
particular source modes.


SETUP MENU

The Setup menu in TV mode shows as below. In others source modes, the Setup menu only shows Menu
Language and Aspect Ratio items.




1. PROGRAM NO: Show the TV channel label menu for user modifying channel labels specifically.
2. AIR/ CABLE: Select TV source signal from the Air (antenna) or Cable (CATV).
3. AUTO SEARCH: Automatically scan all NTSC TV channels and then store in the channel table. In channel scan
process, the OSD can display the number of channels which had been found.
4. SKIP :you can select the ship ON/OFF ,so that the program no channel can be delete or added.



  VIDEO MENU

The Video menu in most source modes shows as below. It provides several videoadjustment items for user fine
tuning the video display. Only in VGA sourcemodes, the Video menu simply provides Contrast, Brightness, Back
light and Settings (Preset) items.




If you selected PERSONAL, press or to highlight an option, then press or to adjust the option. You can adjust:
1. CONTRAST: Video contrast adjustment, the tuning range is 0 ~ 100.
2. BRIGHTNESS: Video brightness adjustment, the tuning range is 0 ~ 100.
3.SATURATION: COLOR saturation adjust, the tuning range is 0 ~ 100
4. TINT: Video tint adjustment, the tuning range is R50 ~ G50.
5. SHARPNESS: Video sharpness adjustment, the tuning range is 0~10
6. BACKLIGHT: Backlight strength adjustment, the tuning range is 0 ~ 10.
7. EDGE ENHANCE: Press < or > to select HIGH, OFF, or LOW.
8.NOISE REDUCTION: Press < or > to select HIGH,OFF, LOW,or MID.
9.COLOR TEMPERATURE: Press < or > to select COOL, STANDARD, or WARM.
                                                        6
47LCD TV                                                                                           AOC L47H861


  AUDIO MENU

The Audio menu in TV mode shows as below. It provides audio adjustment for user to modify the audio setting.
Audio language setting is only available with ATSC TV source, the option is disable under other source modes.




Press or to highlight AUDIO, then press > The AUDIO menu opens.
Press or  to highlight PRESET, then press < or > to select an audio mode.
You can select:



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