Haier L42C1180 User manual
42″LCDTV Haier L42C1180
1
Service
Service
Service
Horizontal Frequency
31~68KHz
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 Led Board………………………..……..……….......37
6.4 Key Board………………………..……..……….......37
6.5 IR Board…………………………..……….…….......38
7. Adjustment……………….……….…………...………39
7.1 ADC Adjustment……………………..……...………39
7.2 FW Upgrade.………………………………...………40
7.3 The Writing VGA & HDMI EDID….………...………44
8. Block Diagram.…….................................................49
9. Wiring Diagram.……...............................................50
10. Schematic Diagram………..……..………………...51
10.1 Main Board…………….…………………...….......51
10.2 Power Board………..…....…………...……….......63
10.3 Led Board……………………..……..……….......67
10.4 Key Board……………….………….………….......68
10.5 IR Board……………………………….……….......69
Table of Contents.......……....................................…........1
Important Safety Notice.......................................……......2
Revision List…………………………………………………3
1. General Specification.................................………........4
2. Operating Instructions…………………….……...….......6
2.1 The Use of Remote Control…….…………...…….......6
2.2 To Use the Menus…...………………….….………......7
2.3 Front Panel Control Knobs……………….………......15
2.4 How to Connect…….…………………….…..…….....16
3. Input/Output Specification…………....................…....17
4. Mechanical Instructions…………………….................19
5. Repair Flow Chart ………………………………………23
6. PCB Layout …………...………………………………...30
6.1 Main Board………..…………………...……….….......30
6.2 Power Board……..…………..………….…..…….......32
2
Important Safety Notice
Proper service and repair is important to the safe, reliable operation of all Haier Company Equipment. The service
procedures recommended by Haier 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. Haier 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, Haier has not
undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by Haier 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, Haier Company will be referred to as Haier.
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 Haier.
Haier 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
Revision List
Version Release Date Revision Instructions Model
A00 Feb.23,2011 Initial release E42AMZNKWUH6NNX
A01 Apr.27,2011 Add new model E42BMZNSWUH6NNX
A02 Aug.25,2011 Add new model
E42BMZNKWUH6NNX
E42BMZNKWUH3NN
4
1. General Specification
Note
• This model complies with the specifications listed below.
• Designs and specifications are subject to change without notice.
• This model may not be compatible with features and/or specifications that may be added in the future.
Model No. L42C1180
DISPLAY
Viewable 42"
Television System NTSC standard, ATSC standard (8-VSB, Clear-QAM)
Channel Coverage
VHF: 2 through 13
UHF: 14 through 69
Cable TV: Mid band (A - 8 through A - 1, A through I),
Super band (J through W),
Hyper band (AA through ZZ, AAA, BBB),
Ultra band (65 through 94, 100 through 135)
CONNECTIONS
Rear Connectors
Tuner input (75Ω)
AV IN: AV/S-Video and L/R audio input
PC IN:D-SUB and PC Audio (Headphone mini-jack)
Supported scan rate: 640x480@60/72/75Hz, 720x400@70Hz,
800x600@56/60/72/75Hz, 1024x768@60/70/75Hz,
1280x720@60Hz, 1280x768@60Hz,
Note:
1280x1024@60Hz, 1440x900@60Hz,
1680x1050@60Hz, 1920x1080@60Hz:
Recommended: 1920x1080@60Hz
Component Video and L/R Audio input
[email protected]/60Hz,1080i@59.94/60Hz,
[email protected]/60Hz.
HDMI input
[email protected]/60Hz,1080i@59.94/60Hz,
[email protected]/60/24/30Hz.
Component 1/2
AV/S-Video Input
SPDIF
HDMI 1/2
Audio Out
Side Connectors
HDMI 3/4
AV In 2
Earphone Output
USB Port
WEIGHT & DIMENSIOIN
Dimensions
with Stand
(W x H x D)(inch)
40.13x27.48x11.87
Dimensions
without Stand
(W x H x D)(inch)
40.13x25.33x3.86
Weight with Stand 39.89(lbs)
Weight without Stand
and Base 33.5(lbs)
5
Model No. L42C1180
WALL MOUNTING
VESA-compatible
wall bracket
(W x H)
400 x 200 mm
Screw type Metric 6 x 10 mm
POWER
Power Consumption 200W
Standby <1W
Mains Power 120V~60Hz
Audio Power 10W + 10W
Ambient Temperature 41°F~95°F
PACKAGE CONTENTS
Supplied Accessories
TV unit x 1
Base x 1
Remote control x 1 (with two size AAA alkaline batteries)
User manual x 1
Registration Card x 1
6
2. Operating Instructions
2.1 The Use of Remote Control
POWER
Press to power ON/OFF (standby) TV.
Note: TV is never completely power off
unless physically unplugged.
PICTURE
Press to switch the picture mode.
AUDIO
Press to switch the audio mode.
ARC
Press to switch the display mode: Normal,
Zoom1, Wide, Zoom2, or HDMI PC
mode(Only for HDMI Video Source).
CCD
Press to switch the closed caption type:
CC On/CC Off/CC On with mute.
MTS/SAP
Press to activate the NTSC TV sounds,
Switch Stereo, SAP or Mono for ATV/
switch, audio languages for DTV.
SLEEP
Press to set the sleep timer (off / 5 / 10 /
15 / 30 / 60 / 90 / 120 / 180 /240 mins).
0 ~ 9 / • number
Press to enter a TV channel number
(Press "." to choose the subchannel).
INPUT
Press "INPUT" to open the Source List.
MENU
Press to open or exit the menu.
MUTE
Switch the sound on/off.
CH+ / CH -
●Menu is displayed:
Press CH+ or CH- to navigate up or down.
●Menu not displayed:
Press CH+ or CH- to browse through the
TV channels.
VOL+ / VOL-
●Menu is displayed:
Press VOL+ or VOL- to navigate right or
left.
●Menu not displayed:
Press VOL+ or VOL- to adjust volume.
ENTER
Press to confirm a selection.
EXIT
Press to exit menu or on screen display
(
OSD
)
.
RECALL
Press to display the previous channel.
DISPLAY
Press to show the information about the
input source, TV channel, display
resolution and current time.
GUIDE
Press to display the Electronic Program
Guide.
FAVORITE
Press "FAVORITE" to open the Favorite
Channel List.
CH.LIST
Press to display the Channel List.
For Multimedia use only.
USB
●For non JPEG/MP3 mode: Press to
display "Multimedia List" menu.
●For JPEG/MP3 mode: Press to toggle
MP3/JPEG mode.
PLAY/PAUSE
Press to toggle Play/Pause function in
Multimedia source.
STOP
Press to Stop playing in Multimedia
source.
REPEAT
Press to toggle Repeat On/Off mode in
MP3 MusicBox.
REV
Press to go to the Last folder / photo in
JPEG Viewer.
FWD
Press to go to the Next folder / photo in
JPEG Viewer.
PREV
Press to go to the First folder / photo in
JPEG Viewer. Press to skip current file
playing and play the previous file during
playing state in MP3 MusicBox.
NEXT
Press to go to the Final folder / photo in
JPEG Viewer. Press to skip current file
playing and play the next file during
playing state in MP3 MusicBox.
7
2.2 To Use the Menus
8
9
10
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