Haier HL22KN1 Schematic

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Haier

COLOR TV

Model No. : HL22KN1

CHASSIS: MST721

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.

2009 (Qingdao Electronics limited company)

CONTENT

Tableofconents…………………………………………………………………………..………..2

1.General Information…………...............……………………………………………………..3

1.1.General Guidelines...………………………………………………………………….. ..3

1.2.Important Notice…………………………………………………………………………..3

1.3. How To Read This Service Manual………………………………………………… .4

2. Speciflcations……………………………………………………………………………..........5

3. Location Of Controls And Components…………………………………...................

…......7

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

3.2Main Board…………….……………………………….. ………………………………...8

3.3Power Board……………………………….. …………………………………………...12

3.4Lcd Panel……………………………….. …………………………………………….…13

4.Disassemble And Assemble…………………………………………………………	.........…14
5. Installation Instructions…………………………………………………………...................19
6. Operation Instructions…………………………………………………………….............	….24

6.1 Front Panel Controls……………………………….. …………………………………....24

6.2Back Panel Controls……………………………….. ………………………………..…...24

6.3Universal Remote Controller……………………………….. …..……………………….26

7.Measurements And Adjustments…………………………………………………................27

8. Electrical Parts	.………………………………………………………........... .............29
8.1Connetive Wire Photo......................................................................................................		29
8.2Circuit Diagram	................................................................................................................	29

9. Trouble Shooting……………………………………………………………………………...40

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, 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	HL22KN1

Screen size	21.6inch

Aspect ratio	16:9

Brightness	400cd/m2

Contrast Ratio	800:1

Angel of view	H170/V160

Color display	16.7M

OSD language	English,

3D decoder	NO

2D comb filter	YES

DNR	YES

3A ENGINE	NO

Same picture split demo(SPD)	NO

double picture demo (DPD)	NO

AV stereo	YES

Surrounding sound	NO

NICAM	YES

MUSIC/STANDARD/THEATRE/USE	MUSIC/THEATRE/PERSONAL/VOICE

Bass, Treble	YES

Balance	YES

BBE	NO

LIP SYNC	NO

Equalizer	NO

Earphone	YES

Mute	YES

AV input	NO

DVD terminal	NO

S-video jack	YES

Y PB PR	YES
Y PB PR
Monitor out	NO

D-SUB jack	YES

DVI socket	NO

HDMI	YES

SCART jack	YES

Windows Menu	NO

pc automatic adjust	YES

movie mode	NO

Semitransparent menu	YES

ZOOM	NO

16:9 mode	YES

ADVANCED 4:3	YES

PIP	NO

POP	NO

PBP	NO

3A WINDOWS	NO

ATS	YES

Nation Select	YES

Channel List	NO

Input Frequency by Manual and Channel	NO
Number Input
Lock	YES

TELTEXT	10

NO. of built-in speakers	2

NO. of outer speakers	No

Color display	240

NO. of preset channels	100

OSD language	English

Color system	PAL/SECAM

Audio system	DK,BG,I, LL'

Audio output power(Built-in)(W)	1.5W×2

Audio output power(outer)(W)	No

Total power input W	60W

Voltage range V	AC150V~AC240V

Power frequency Hz	50~60Hz

Time of sleep timer(MINS)	240Min

Net weight(KG)	5.38

Gross weight(KG)	6.73

Net dimension(MM)	537/189/454

Packaged dimension(MM)	595/225/460

3.LOCATION OF CONTROLS AND COMPONENTS

3.1.Board Location

No.		Parts number	Description
A	Board		MainBoard Assembly
B	Board		Power adaptor
C			Speaker

3.2.A.Board----MainBoard

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

LCDS Connector (CN2)

	Signal
Pin number	name	Description
1	LCD-VDD	Supply voltage to Panel
2	LCD-VDD	Supply voltage to Panel
3	LCD-VDD	Supply voltage to Panel
4	GND	Ground
5	GND	Ground
		9

6	GND	Ground
7	RXO0-	LVDS ODD 0–Signal
8	RXO0+	LVDS ODD 0 + Signal
9	RXO1-	LVDS ODD 1 - Signal
10	RXO1+	LVDS ODD 1 + Signal
11	RXO2-	LVDS ODD 2 - Signal
12	RXO2+	LVDS ODD 2 + Signal
13	GND	Ground
14	GND	Ground
15	RXOC-	LVDS ODD Clock - Signal
16	RXOC+	LVDS ODD Clock + Signal
17	RXO3-	LVDS ODD 3 - Signal
18	RXO3+	LVDS ODD 3 + Signal
19	RXE0-	LVDS EVEN 0 -	Signal
20	RXE0+	LVDS EVEN 0 +	Signal
21	RXE1-	LVDS EVEN 1 -	Signal
22	RXE1+	LVDS EVEN 1 +	Signal
23	RXE2-	LVDS EVEN 2 -	Signal
24	RXE2+	LVDS EVEN 2 +	Signal
25	GND	Ground
26	GND	Ground
27	RXEC-	LVDS EVEN Clock	- Signal
28	RXEC+	LVDS EVEN Clock	+ Signal
29	RXE3-	LVDS EVEN 3 -	Signal
30	RXE3+	LVDS EVEN 3 +	Signal

Power supply and Inverter Connector CN10

Pin
number	Signal name	Description
1	ON/OFF	Preparative switch control

2	GND	Ground
3	GND	Ground
4	ADJ	INVERTER Lightness Adjust

5	BLON	INVERTER Switch Control

6	+12V	12V Power
7	+12V	12V Power

Audio Output Connector CN11

Pin
number	Signal name	Description
1	LSPK	Left Audio Output
2	GND	Ground
3	GND	Ground
4	RSPK	Right Audio Output
Remote Board and Key board Connector CN15
Pin
number	Signal name	Description
1	IR_IN	IR

2	CPU5V	5V Power
3	LED_G	Green Indicator light

4	GND	Ground
5	LED_R	Red Indicator light

6	K6	Key Connector POWER