Haier HL22FEP1 Schematic

COLOR TV

Model No. : HL22FEP1、 HL22FRR1 HL22FRI1 、 HL22FPB1

CHASSIS: ZORAN775

This service information is designed for 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.

experienced repair technicians only and is not designed for use by the general public. It does

RNING

Qingdao Electronics

2009 (

law.

limited com

pany

)

CONTENTS

Table of contents

1. General Information

1.1. General Guidelines...…………………………………………...….………..4

1.2. Important notice………………………………………………….…………...4

1.3. How to read this Service Manual…………………………...…..…………..5

2. Specifications

3. Location of Controls and Components

3.1.Board Location……………………………………….……………..…..……..7

3.2.

A Board----Main Boar B Board---- Power Board

3.3.

………………..................…………………………….2

…………...............…………………..………..4

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

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

…………………………………………..………..7

…………………….…….....……………….11

3.4. LCD Panel……………………………………………………….……………12

4. Disassemble and assemble

4.1 Remove the Front Cabinet……………………………….……..…….….…14

4.2 Remove the LCD panel…………………….…………….….………..……..14

4.3 Remove the Main Board…….........……………………..……..……………14

4.4 Remove the Power Board……………....……………..………….…………15

4.5 Remove the Speaker……….......…………………..…..…………..……….15

4.6 Remove the Keypad Assembly…....…………………..…......…………….15

4.7 Remove the Remote Control Board………………………….……………..15

5. Installation Instructions

…………………............…….…….14

………..................….…….………..…..16

5.1 External Equipment Connections ………………………..….…...........…..16

5.2 HDMI Connections ..………………………….....................................…...16

6. Operation Instructions

6.1 Front Panel Controls …………………………………….....………............21

6.2 Back Panel Controls ……………...………………..………..………..........21

6.3 Universal Remote Controller...................................................................21

……………………….….........................21

7. Electrical parts

7.1. Block diagram ........................................................................................23

7.2. Circuit Diagram.......................................................................................23

7.3 .Wiring Connection Diagram....................................................................37

8. Measurements and Adjustments

8 . 1 Version S/N Panel Resolution 8 . 2 Video

8. 3 Audio

8. 4 Channel …………………………..........................................................41

8. 5 Gamma …………………………...........................................................42

.................................................................................................39

……….......................................................................................40

...............................................................................23

.........................................39

....................................................39

8. 6 Backlight………………………….........................................................43

8. 7 Function……………………….............................................................43

9. Trouble shooting

9.1. Simple check .........................................................................................46

9.2. Power Supply Board failure check ........................................................47

9.3. Main board failure check .......................................................................48

9.4. Panel failure ..........................................................................................50

..........................................................................46

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 Take Care to Deal With The Cathode-Ray Tube

In the condition that an explosion-proof cathoderay tube is set in this equipment, safety is se-cured

against implosion. However, when removing it or serving from backward, it is dangerous to give a

shock. Take enough care to deal with it.

1.2.7 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

1.2.8 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.

1.2.9 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

1.3.1 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,

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 HL22FPB1 Screen size 21.6inch Aspect ratio 16:9 Resolution 1366×768 Contrast Ratio 1000:1 Angel of view H:170/V:160 Color display 16.7M OSD language English Color system ATSC/NTSC Color Temperature Cold/Standard/Warm Audio output power(Built-in)(W) 3W×2 Power Consumption(in Standby) 1W Total power input（W） 50W Voltage range（V） 120V±10% V Power frequency（Hz） 60HZ Time of sleep timer(MINS) 240Min Net weight(KG) 4.5 Gross weight(KG) 5.6 Net dimension(MM) 534/164/392 Packaged dimension(MM) 600/210/460

3. LOCATION OF CONTROLS AND COMPONENTS

3.1. Board Location

B Board

A Board

No. Description

A Board Main Board

B Board Power supply Board

C Panel

3.2. A Board----Main 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

LVDS Connector (CN8)

PIN 1

Pin number

1 NC NC

2 NC NC

3 NC NC

4 NC NC

5 LVDS_D0E_N LVDS EVEN 0 - Signal

6 LVDS_D0E_P LVDS EVEN 0 + Signal

7 GND Ground

8 LVDS_D1E_N LVDS EVEN 1 - Signal

9 LVDS_D1E_P LVDS EVEN 1 + Signal

10 GND Ground

11 LVDS_D2E_N LVDS EVEN 2 - Signal

12 LVDS_D2E_P LVDS EVEN 2 + Signal

13 GND Ground

14 LVDS_CE_N LVDS EVEN Clock - Signal

15 LVDS_CE_P LVDS EVEN Clock + Signal

16 GND Ground

17 LVDS_D3E_N LVDS EVEN 3 - Signal

18 LVDS_D3E_P LVDS EVEN 3 + Signal

19 GND Ground

20 NC NC

21 NC NC

22 NC NC 23 GND Ground 24 GND Ground 25 GND Ground

26 Panel_power Power for panel

27 Panel_power Power for panel

28 Panel_power Power for panel

29 Panel_power Power for panel

30 Panel_power Power for panel

Signal name Description

Power supply and Inverter Connector（CN3）

number Signal name Description

1 ON/OFF Preparative switch control 2 GND 3 GND 4 ADJ INVERTER Lightness Adjust 5 BLON INVERTER Switch Control 6 +12V 12V Power

7 +12V 12V Power

PIN 1

Ground Ground

Audio Output Connector（CN1）

PIN 1

number Signal name Description

1 LSPK Left Audio Output 2 GND 3 GND 4 RSPK Right Audio Output

Remote Board and Key board Connector（CN2）

Ground Ground

PIN 1

Pin Signal name Description

number

1 IR_IN IR 2 CPU5V 5V Power 3 LED_B Blue Indicator light 4 GND 5 LED_R Red Indicator light 6 K6 Key Connector POWER 7 K5 Key Connector MENU 8 K4 Key Connector P-

9 K3 Key Connector P+ 10 K2 Key Connector V11 K1 Key Connector V+ 12 K0 Key Connector SOURCE

Ground

3.3.B Board------- (Power Board)

Supply power for Main board and Panel

Power supply and Inverter Connector（CN10）

number Signal name Description

1 NC 2 GND 3 GND 4 BL-ADJUST INVERTER Lightness Adjust 5 BL-ON/OFF INVERTER Switch Control 6 +12V 12V Power 7 +12V 12V Power

Other Connector AC150V~AC240V Input (CN15) Power supply for panel (CN11) Power supply for panel (CN12) Power supply for panel (CN13) Power supply for panel (CN14)

Ground Ground

3.4. LCD PANEL.

LVDS Connector (CN10) Connector definition

CN10

PIN 1

4. 1Re move the Front Ca binet

①

4.2Remove the LCD panel

①Remover the six screws indicated with ○. ②.Then remove the panel.

①

Remover the six screws indicated with ○.

②. Stand up the TV,open the TV from the bottom.

③Remover pin indicated with ○. ④

Then remove the front cabinet from the unit.

②

4.3Remove the Main Board

③

①Remover the four screws indicated with ○. ②Remover the four screws indicated with

○.

4.4Remove the Power Board

①Remover the four screws indicated with ○. ②Then remove the Power Board.

4.5Remove the Speaker

4.7Remove the Remote

Control Board

①Remover the one screw indicated with ○. ②Then remove the Remote Control Board .

①Remover the four screws indicated with ○.

②Then remove the . Speaker

4.6Remove the Keypad

Assembly

①Remover the two screws indicated with ○.

②Then remove the Keypad Assembly.

5. Installation Instructions

5.1 External Equipment Connections

Antenna Connection

Connect one end of a coaxial cable (not included) to the ANT IN jack on the back of your TV/DVD combo, then connect the other end of the cable into the antenna or cable TV wall outlet.

To improve picture quality from an antenna in a poor signal area, install a signal amplifier.

If you need to split the antenna signal to connect two TVs, install a two-way splitter.

Choose Your Connection

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. Choose the connection which is best for you.

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