Haier HL42B User manual

HL42B

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1. Features-------------------------------------------------3
2. Safety Precautions----------------------------------5
3. Images of Module and Circuit Boards--------7
4. Key IC Description& Trouble Shooting Guide
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5.Signal Flowing Chart-------------------------------14
6. Bus Control Adjustment-------------------------15
7. Circuit Diagram ------------------------------------30
8. Connection Sketch Interpretat----------------49

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Features
Options Functions
Screen size (inches) 42
Display type LCD
General Aspect ratio 16:9
Resolution 1366*768
Brightness 500 cm/2
Contrast 800:1
Response time(ms) 8ms
Display Capabilities 480i/480P/720P/1080i
Viewing Angle H:178/V:178
Color display 16.7million
Active Matrix TFT yes
Video
PC mode (VGA, SVGA, XVGA) WXGA\SXGA\XGA\SVGA\VGA
Tuner Integrated NTSC&ATSC
HD-ready yes
Video Signal System NTSC/ATSC(8VSB,Clear QAM)
Color Temperature Standard,Cool,Warm
Progressive Scan yes
Digital Comb Filter 3D
Video Noise Reduction yes
Picture Modes standard,vivid,mild,custom
# of preset channels 181
Screen Mode (4:3) yes
Wide Mode (16:9) yes
Wide Mode (PC) yes
Auto adjustment (PC) yes
Phase (PC) Only yes
Video Features
H\V edge correction yes
Number Of Speakers 2
Speakers Type Built-in(bottom)
Speaker Size 4 1/2" X 2" (2 pcs)
Watts Per Channel 10W
Audio
Audio Power Output 10W*2
Stereo Surround Sound yes
MTS Stereo yes
Sound Mode Live、POP、Rock、Custom
Tone Control yes
Speakers ON/OFF N/A
Audio Features
Mute yes
Semi transparent Menu yes
Zoom yes
V-Chip yes
Close Caption
(Basic,Digital,Advance) yes
Teletext N/A
Convenience
Features
Multilingual Display E/F/S

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Auto Channel Programming yes
Channel Caption yes
Channel Label yes
Channel Skip/Add yes
Favorite Channel yes
Program Guide Access(TV guide) N/A
Clock yes
Programmable Timer yes
Sleep Timer yes
Alarm (Auto timer on/off) yes
Picture-In-Picture N/A
Freeze Picture yes
Remote Control HTR-282C (Universal)
ATSC/NTSC Tuner 1
HDMI Input 2
Component Video Input 2
Composite Video Input 2
S-Video Input 1
RF Input 1
PC Input 1
USB Port /
Analog Audio Input 2 for component, 2 for composite and S-video
PC Audio Input 1 (VGA and HDMI-to-DVI)
Audio Out (Fixed/Variable) 1(optical)
Headphone jack 1
Input \ Output
AV Output 1
Compliance Vesa N/A
Internal power Supply yes
Power Consumption (in Operation) 240W
Power Consumption (in Standby) ≤1W
Power Voltage 120V
Power
Power Frequency 60Hz
Warranty Warranty terms 1 year*
Panel Supplier LG
Information Chipset BCM3551

Safety Precautions

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Images of Module and Circuit Boards
a: Signal flow-chart

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b. Printed Circuit IC Board
1) head-on board

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2) rear board

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Key IC Description& Trouble Shooting Guide
1. Key IC Description
1）BCM3551

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2）MSP3460

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3)AD9880

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2. Trouble Shooting Guide

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Signal Flowing Chart

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Bus Control Adjustment
1）Factory Mode
Using the romote controller to enter into Factory Menu.
Press Menu to call main menu displaying on the screen. And then press “9”,“ 4”,“4”,“3”,“OK” in turn.You will see the
screen displaying as following.You can check the version of the software,adjust some settings.But we don’t advise you
change this settings.because of the TV has already hold in the state of optimality.If you have to chang this settings,please
connect with the local service center.
1. Factory menu

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2.Image Version, Atmega Version
Image Version: This is the current software version.
Atmega Version: The serial number, it is recorded for this board.

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3.OK MENU EXIT
OK: press OK to submenu
MENU: return to upper menu
EXIT: Press “EXIT” of the romote controller to exit from factory menu

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4. Operate in Factory Menu
There are 5 items in the root Product Mode, Aging Mode, Shop End, Service Mode, Design Mode.
1) Product Mode includes 3 items, White Balance Setting, Back Light Set to Factory Default Value.Do not change the
value commonly.

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2)Aging Mode This is for factory run-in testing.

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3) Shop End is for debuging, and do not change anything commonly.