Haier HL37BG-B Schematic

HL37BG-B

-

１

1.Features-----------------------------------------------------------------3

2.Safety Precautions---------------------------------------------------6

3. Images of Module and Circuit Boards-----------------------7

4. Trouble Shooting Guide -----------------------------------------15

5.Bus Control Adjustment------------------------------------------16

6.Circuit Diagram ---------------------------------------------------- 25

7.Connection Sketch Interpretat---------------------------------48

-

２

1. Features

Factory model(reference only) L37A9A-A
HAC model HL37BG-B

Options Functions

Screen size (inches)

General

Display type
Aspect ratio
Resolution
Brightness
Contrast
Response time(ms)

Video

Display Capabilities

480i/480P/720P/1080i/1080p

Viewing Angle
Color display
Active Matrix TFT

37
LCD
16:9

1366*768

500 cm/2

1000:1

8ms

H:176/V:176

16.7million
yes

Video Features

Audio

Audio Features

Convenience

PC mode (VGA, SVGA, XVGA)

WXGA\SXGA\XGA\SVGA\VGA

Tuner
HD-ready
Video Signal System
Color Temperature
Progressive Scan
Digital Comb Filter
Video Noise Reduction
Picture Modes
# of preset channels
Screen Mode (4:3)
Wide Mode (16:9)
Wide Mode (PC)
Auto adjustment (PC)
Phase (PC) Only
H\V edge correction
Number Of Speakers
Speakers Type

Integrated NTSC&ATSC

yes

NTSC/ATSC(8VSB,Clear QAM)

Standard,Cool,Warm,user

yes

3D

yes

standard,vivid,mild,custom

181
yes
yes
yes
yes
yes
yes

2

Built-in(bottom)

Speaker Size 4 1/2" X 2" (2 pcs)
Watts Per Channel
Audio Power Output
Stereo Surround Sound
MTS Stereo

Sound Mode
Tone Control

Speakers ON/OFF
Mute
Semi transparent Menu

Concert、Living Room、Hall、Bathroom、
Cave、Arena、Church

10W

10W*2

yes
yes

yes
yes
yes
yes

-

３

Features

Input \ Output

Zoom
V-Chip

Close Caption
(Basic,Digital,Advance)

Teletext
Multilingual Display
Auto Channel Programming
Channel Caption
Channel Label
Channel Skip/Add
Favorite Channel

Program Guide Access(TV
guide)

Clock
Programmable Timer
Sleep Timer
Alarm (Auto timer on/off)
Picture-In-Picture
Freeze Picture
Remote Control
ATSC/NTSC Tuner
HDMI Input
Component Video Input
Composite Video Input
S-Video Input
RF Input
PC Input
USB Port

yes
yes

yes
N/A

E/F/S

yes
yes
yes
yes
yes

yes
yes
yes
yes
yes
N/A
yes

HTR-282I (Universal)

1
2
2
3
1
1
1

/

Analog Audio Input

2 for component,3 for composite and

PC Audio Input 1 (VGA and HDMI-to-DVI)
Audio Out (Fixed/Variable)
Headphone jack
Audio Output(RCA)

Compliance Vesa yes

Internal power Supply
Power Consumption (in

Operation)

Power

Power Consumption (in Standby)
Power Voltage

Power Frequency

Dimensions

Unit Dimensions (in)

37 1/4*4 3/4*25 7/8

Unit Dimensions with Stand (in) 37 1/4*12 1/4*28

-

４

S-video

1(optical)

1
1

yes

200W

≤1W
120V
60Hz

Stand Dimensions (in)

22 1/8*12 1/4*9 1/8

Speaker Dimensions (in)
Carton Dimensions (in)

41*15 3/8*31 1/2

Unit Weight (lb)
Unit Weight with Stand (lb)

Weight

Stand Weight (lb)
Speaker Weight (lb)
Carton Weight (lb) 60 7/8

Warranty Warranty terms 1 year*

Remote Control
Batteries
AC Power Cord

Accessories

VGA Cable N/A
S-Video Cable N/A
Operating Instructions
Quick Set Up Guide
Speaker Cable Built-in
40 Ft

Container Qty

40 Ft HQ
20 Ft

Information

Panel Supplier
Chipset

/

42

49 7/8

8

/

yes
yes
yes

yes
yes

120
192

60

AU

MTK5371

-

５

2.Safety Precautions

6

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

-

b. Printed Circuit IC Board

1) head-on board

７

-

2) rear board

８

-

Key IC Description& Trouble Shooting Guide

1. Key IC Description
1）MTK5371
Media TEK MT5371 is highly integrated SOC which include DTV backend decoder and TV controller.MT5371 support transport

de-multiplexer,MPEG-2 video decoder,AC3 audio decoder,LVDS transmitter,TV decoder.The MT5371 enables consumer electronics manuactrues to
build high quality,feature-rich DTV.

World-Leading Video Technology:MT5371 embeded the MDDi deintelacer to generate very smoot h picture quality for motion. 3D comb filter also

９

-

recovery high detail for still picture.The special color processing technology provide favorite ande natural color for TV.

Rich Feature for high value produce:To enrich the features of DTV,MT5371 suppout HDMI receiver,PIP/POP,memory card and DV decoding.
Credible Analog Technology:The MT5371 integrated with high speed VGA ADC,high resolution Video/Audio DAC and 12-bit Video DAC.It will

provide very fine quality for TV.

2）HYB25DC256163CE-5

１０

-

3)MT8291

１１

-

１２

-

4) MT5112

１３