Haier HL32R1, HL32R1a, HLC32R1 Service Manual

1

SERVICE MANUAL

WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does
not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products
powered b electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the
product deal with in this service information by anyone else could result in serious injury or death.

Model No. HL32R1

CHASSIS:

MTK5380LC

2009 (Qingdao Electronics

limited company

)
All rights reserved. Unauthorized copying and distribution is a violation of
law.

Model No. HL32R1a

CONTENTS

Table of contents

………………..................…………………..……….2

1. General Information

…………...............…………………………..4

1-1. General Guidelines...…………………………………………………..4

1-2. Important notice………………………………………………………...4

1-3. How to read this Service Manual……………………………………..5

2. Specifications

……………………………………………....................6

3. Location of Controls and Components

...........................7

3-1.Board Location…………………………………………………………..7

3-2. Main Board & AV Board………………………………………………..7

3-3. Power Board…………………………………………………………….9

3-4. LCD Panel………………………………………………………………11

4. Disassemble and assemble

…………………...........………….12

4-1 Remove the Pedestal ……………………………………………….…13

4-2 Remove the Back Cover…………………...…………………………..1

3

4-3 Remove the speaker..........…….........…………………………………13

4-4 Remove the power module.....……………....…………………………13

4-5 Remove the Main board.....……….......……………………………….14

4-6 Remove the remote control and the keypad control.....................14

4-7 Remove the Terminal Bracket..……………………….……………….

1

4

5. Installation Instructions

………..................………………..…..15

5-1 External Equipment Connections …………………………..........…..15

5-2 HDMI and DVI input.………………………….............................…...20

6. Operation Instructions

………………………….........................23

6-1 Tv Side pannel control and connections...…………………….........23

6-2 Back Panel Conections.…………...……………………………..........24

6-3 Setting Up Your Remote Control...................................................25

7. Electrical parts

............................................................................26

7-1. Block diagram ...............................................................................26

7-2. Circuit Diagram..............................................................................26

7-3 .Wiring Connection Diagram...........................................................42

8. Measurements and Adjustments .......................................43

8-1. Service Mode ..................................................................................43

……………………….………………

14

4-8 Remove the Panel

8-1-1.How to enter into Service Mode

......................................................

43

8-1-2.How to exit

..................................................................................

43

8-2. Measurements and Adjustments ..................................................43

9. Trouble shooting

......................................................................4

9

9-1. Simple check ...............................................................................49

9-2. Power Supply Board failure check ..............................................50

9-3. Main board failure check ..............................................................51

9-4. Pannel failure ...............................................................................53

1. General Information

1-1 General Guidelines

When servicing, observe the original lead dress. If a short circuit is found, replace all parts which
have been overheated or damaged by the short circuit.
After servicing, see to it that all the protective devices such as insulation barriers, insulation papers
shields are properly installed.

After servicing, make the following leakage current checks to prevent the customer from being

exposed to shock hazards.

1) Leakage Current Cold Check

2) Leakage Current Hot Check

3)Prevention of Electro Static Discharge(ESD)to Electrostatically Sensitive

1-2 Important notice

1-2-1. Follow the regulations and warnings

Most important thing is to list up the potential hazard or risk for the service personnel to open the

units and disassemble the units. For example, we need to describe properly how to avoid the

possibility to get electrical shock from the live power supply or charged electrical parts (even the

power is off).

This symbol indicates that high voltage is present inside. It is dangerous to
make any king of contact with any inside part of this product.

This symbol indicates that there are important operating and maintenance
instructions in the literture accompanying the appliance

1-2-2. Be careful to the electrical shock

To prevent damage which might result in electric shock or fire, do not expose this TV set to rain or

excessive moisture. This TV must not be exposed to dripping or splashing water, and objects

Filled with liquid, such as vases, must not be place on top of or above the TV

1-2-3. Electro static discharge (ESD)

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such
Components commonly are called Electrostatically Sensitive (ES) Devices. The following
tech-niquesshouldbeusedtohelpreducetheincidenceofcomponentdamagecausedbyelectro
Static discharge (ESD).

1-2-4. About lead free solder (PbF)

This product is manufactured using lead-free solder as a part of a movement within the consum-er

products industry at large to be environmentally responsible. Lead-free solder must be used in the

servicing and repair of this product.

1-2-5. Use the genewing parts (specified parts)

Special parts which have purposes of fire retardant (resistors),high-quality sound (capacitors), low

noise(resistors), etc. are used.
When replacing any of components, be sure to use only manufacture's specified parts shown in
the parts list.

Safety Component

● Components identified by mark have special characteristics important for safety.

1-2-6. Safety Check after Repairment

Confirm that the screws ,parts and wiring which were removed in order to service are put in the

original positions, or whether there are the portions which are deteriorated around the serviced

places serviced or not. Check the insulation between the antenna terminal or external metal and

the AC cord plug blades. And be sure the safety of that.

Insuration Test

1. Unplug the plug from the AC outlet.

2. Remove the antenna terminal on TV and turn on the TV.

3. Insulation resistance between the cord plug terminals and the eternal exposure metal

should be more than M ohm by using the 500V insulation resistance meter

4. If the insulation resistance is less than M ohm, the inspection repair should be required.
If you have not the 500V insulation resistance meter, use a Tester.
External exposure metal: Antenna terminal Headphone jack

1-2-7. Ordering Spare Parts

Please include the following informations when you order parts. (Particularly the Version

letter)

1. Model number and Version letter
The model number can be found on the back of each product and the Version letter can
be found at the end of the serial number.

2. Part No. and Description
You can find them in your service manual.

1-2-8. Photo used in this manual

The illustration and photos used in this Manual may not base on the final design of products, which
may differ from your products in some way.

1-3. How to read this Service Manual

1-4-1. Using Icons

Icons are used to attract the attention of the reader to specific information. The meaning of each

icon is

described in the table below:

Note:

A “note” provides information that is not indispensable, but may nevertheless be valuable to the
reader, such as tips and tricks.

Caution:

A “caution” is used when there is danger that the reader, through incorrect manipulation,

870/267/657

796/230/590

15.3

12.5

90W

10W×2

H:178/V:178

3000:1

1366x768

32inch

HL32R1

may damage equipment, loose data, get an unexpected result or has to restart(part of)
a procedure.

Warning:

A “warning” is used when there is danger of personal injury.

Reference:

A “reference” guides the reader to other places in this binder or in this manual, where he/she will
find additional information on a specific topic.

2. Specification

Model

Screen size

Aspect ratio

16:9

Resolution

Contrast Ratio

Angel of view

Color display

16.7M

OSD language

English

Color system

ATSC/ NTSC

Audio system

DK,BG,I, LL'

Audio output power(Built-in)(W)

Audio output power(outer)(W)

No

Total power input（W）

Voltage range（V）

120V±10% V

Power frequency（Hz）

60HZ

Time of sleep timer(MINS)

240Min

Net weight(KG)

Gross weight(KG)

Net dimension(MM)

Packaged dimension(MM)

3. LOCATION OF CONTROLS AND COMPONENTS

Power connectors (CNA1)

A Board DC13W0E0101M Mainboard Assembly(0090719678C)

B Board 0094001274A Power Supply

3-1 Board Location

No. Parts number Description

3-2 Main Board & AV Board

3-2-1 Function Description:

Main Board：

Process signal which incept from exterior equipment，then translate into signal that panel can
display.

3-2-2 Connector definition

Main board connector

Pin number Signal number

1 SW
2 GND
3 +5VSB
4 GND
5 GND
6 +12V
7 +12V

Notes:

CNA1-Pin1:System power on / standby
System board will use this pin to control system power.

CN1

Pin number Signal number

1 Dimming
2 ON/OFF
3 GND
4 SELECT(NC)

Notes:

CN1-Pin2: Backlight on/off
The system can turn on or turn off the backlight of TFT LCD Panel through the power
supply unit path.
CN1-Pin1: Control the luminance of backlight.
The system can generate the PWN signal to control the strength of TFT LCD Panel’s
backlight through this connector.
CNA2

Pin number Signal number

1 +24V/16.5V
2 +24V/16.5V
3 GND
4 GND

Remote connector(CNE1)

Pin number Signal number

1 +5VSB
2 IR_IN
3 LED_RED
4 LED_GRE
5 GND

Keypad connector(CNE2)

Pin number Signal number

1 GND
2 ADIN1-K0
3 ADIN2-K1

Speaker connector(CNC1)

Pin number Signal number

1 SPEA_L+
2 SPEA_L­3 SPEA_R_
4 SPEA_R+

Other connectors:
CNB2 to Upgrade the program of MTK5380L (U13) AND FLASH (U17)

3-3. Power Board

3-3-1 Function Description:

Supply power for Main board, Panel.

3-3-2Connectordefinition
CON2

CON3

CON3

3-4. LCD Panel

3-4-1 Function Description: Display the signal.
3-4-2 Connector definition

4.Disassemble and assemble

4-1 Remove the Pedestal

Lay down the unit so that rear

cover faces upward .

5 screw.(ST4*16)

4 screw.(ST4*16)

12 screw.(ST4*12)

Remove the five screw from the rear

cover indicated by blue line.

Then remove the pedestal.

4-2 Remove the Back Cover

Remove the fourteen scre windicated

on figure above by blue line.

Then remove the back cover from the

unit．　

4-3. Remove the speaker

Remove the four screw from the speaker
indicated on figure above by blue line.

4-4 Remove the power module

Remove the four screw indicated on the

figure above by blue line .

Then remove the power module.

2 screw.(ST3*10)

4 screw.(M4*8)

4-5 Remove the the Main board

Remove the four screw indicated on

the figure above by blue line.

4 screw(M3* 8)

4 screw(ST3 *10)

8 screw(M3* 8)

8 screw(ST4*12)

2 screw(M4* 8)

Remove the Main board．　

4-6 Remove the remote control
and the keypad control

Remove the four screw indicated on the
figure above by blue line.
Take out the remote control board and
the keypad control.

4-7 Remove the Terminal Bracket 　

4-8 Remove the panel 　

Remove the eight screw indicated on the

figure above by blue line.

Remove the ten screw indicated on the

figure above by blue line.

　Then remove the terminal bracket.

　Then remove the panel .

ANT INANT IN

ANT INANT IN

Over-the-air TV reception quality will depend on your antenna type, antenna location and antenna positioning.

External Equipment

Connections

Antenna Connection

Multi-family Dwellings/Apartments
(Connect to wall antenna socket)
Wall Antenna
Socket

Single-family Dwellings /Houses
(Connect to wall jack for outdoor antenna)
Outdoor
Antenna

VHF Antenna
UHF Antenna

Turn clockwise to tighten

RF Coaxial Wire (75 ohm)

Bronze Wire

Be careful not to bend the bronze wire
when connecting the antenna.

Bronze Wire

To improve the picture quality in a poor signal area,

please purchase a signal amplifier and install properly.

If the antenna needs to be split for two TV`s, install a
2-Way Signal Splitter in the connections.
To install the antenna properly please contact a

professional in your area.

Accessories

Remote control Owner`s manual Alkaline battery(AAA) 2

Please READ this manual carefully before
operating your TV, and retain it for future
reference.

TFT-LCD TV

OWNER S MANUAL'

MODEL:

S

HL26K
HL32K
HL37K
HL42K
HL47K

R

HL37T
HL52T

PLAY/PAUSE

REV

REPEAT

GUIDE

MTS/SAP

CCD ARC

FREEZE

ENTER

STOPUSB REC

PREV NEXT

CH.LIST

FAVORITE

TV

STB

INPUT

MUTE

VOL CH

MENU

SLEEP DISPLAY

EXIT

RECALL

PICTURE AUDIO PC HDMI

CABLE VCR AUD

DVD

5.installation instruction

Connecting a

our Connection

Connections

22

11

11

YY

PbPb

PrPr

LL

RR

LL LL

RR RR

VIDEOVIDEO VIDEOVIDEO

S-VIDEOS-VIDEO

VGAVGA

VGA AUDIOVGA AUDIO

AUDIOAUDIO AUDIOAUDIO

LL

RR

DVI AUDIODVI AUDIO

AUDIOAUDIO

22

LL

RR

AUDIOAUDIO

COMPONENT INCOMPONENT IN

VIDEO INVIDEO IN

11

AV OUTAV OUT

VGA INVGA IN

HDMI INHDMI IN

ANT INANT IN

OPTICAL OUTOPTICAL OUT

VCR

NOTE: All cables shown are not included with the TV.

There are several ways to connect your television,
depending on the components you want to connect and
the quality of the signal you want to achieve. The
following are examples of some different ways to connect
your TV with different input sources.

External Equipment

Choose Y

To avoid picture noise (interference), leave an adequate
distance between the VCR and TV.

Connection Option 1

Set VCR output switch to channel 3 or 4 and then tune
the TV to the same channel number.

Connection Option 2

1. Connect the audio and video cables from the VCR's
output jacks to the TV input jacks, as shown in the figure.
When connecting the TV to VCR, match the jack colors
(Video = yellow, Audio Left = white, and Audio Right = red).
If you connect a S-VIDEO output from VCR to the
S-VIDEO input, the picture quality is improved;
compared to connecting a regular VCR to the Video input.

2. Insert a video tape into the VCR and press PLAY on
the VCR. (Refer to the VCR owner`s manual.)

3. Select the input source with using the
INPUT button on the remote control, and
then press / button to select the source,
press ENTER button to confirm.

22

11

11

YY

PbPb

PrPr

LL

RR

LL LL

RR RR

VIDEOVIDEO VIDEOVIDEO

S-VIDEOS-VIDEO

VGAVGA

VGA AUDIOVGA AUDIO

AUDIOAUDIO AUDIOAUDIO

LL

RR

DVI AUDIODVI AUDIO

AUDIOAUDIO

22

LL

RR

AUDIOAUDIO

COMPONENT INCOMPONENT IN

VIDEO INVIDEO IN

11

AV OUTAV OUT

VGA INVGA IN

HDMI INHDMI IN

ANT INANT IN

OPTICAL OUTOPTICAL OUT

22

11

11

YY

PbPb

PrPr

LL

RR

LL LL

RR RR

VIDEOVIDEO VIDEOVIDEO

S-VIDEOS-VIDEO

VGAVGA

VGA AUDIOVGA AUDIO

AUDIOAUDIO AUDIOAUDIO

LL

RR

DVI AUDIODVI AUDIO

AUDIOAUDIO

22

LL

RR

AUDIOAUDIO

COMPONENT INCOMPONENT IN

VIDEO INVIDEO IN

11

AV OUTAV OUT

VGA INVGA IN

HDMI INHDMI IN

ANT INANT IN

OPTICAL OUTOPTICAL OUT

How to connect

1. Connect the DVD video outputs (COMPONENT) to
the Y Pb Pr jacks on the TV and connect the DVD audio
outputs to the YPbPr Audio IN jacks on the TV, as
shown in the figure.

2. If your DVD only has an S-VIDEO output jack,
connect this to the S-VIDEO input on the TV. as shown
in the figure.

Note

If your DVD player does not have component video
output, use S-Video.

How to use

1. Turn on the DVD player, insert a DVD.

2. Use INPUT button on the remote control to select
component mode.

3. Press Play button on external equipment for program
play.

4. Refer to the DVD player's manual for operating
instructions.

How to connect

Connect the audio and video cables from the external
equipment's output jacks to the TV input jacks, as shown
in the figure.
When connecting the TV to external equipment, match the
jack colors (Video = yellow, Audio Left = white, and Audio
Right = red).

How to use

1. Select the input source with using the INPUT button on
the remote control.

2. Press / button to select the desired source.

3. Press button to confirm.

4. Operate the corresponding external equipment.

ENTER

Video Game Set

Camcorder

Component Input ports
To get better picture quality, connect a DVD player to the
component input ports as shown below.

Component ports
on the TV

Video output ports
on DVD player

Y Pb Pr

Y Pb Pr
Y B-Y R-Y

Y Cb Cr
Y P P

BR

External A/V Source Setup

Connecting a DVD player