Haier HL19KN1 User manual

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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.
COLOR TV
Model No. : HL19KN1
CHASSIS: MST721
2009 (Qingdao Electronics limited company)
All rights reserved. Unauthorized copying and distribution is a violation of
law.
Haier

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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 OfControls And Components…………………………………...................…......7
3.1Board Location……………………………….. ………………………………….……... .7
3.2 Main Board…………….……………………………….. ………………………………...8
3.3 Power Board……………………………….. …………………………………………...12
3.4 Lcd Panel……………………………….. …………………………………………….…13
4.Disassemble And Assemble………………………………………………………….........…14
5. Installation Instructions…………………………………………………………...................19
6. Operation Instructions…………………………………………………………….............….24
6.1 Front Panel Controls……………………………….. …………………………………....24
6.2 Back Panel Controls……………………………….. ………………………………..…...24
6.3 Universal Remote Controller……………………………….. …..……………………….26
7. Measurements And Adjustments…………………………………………………................27
8. Electrical Parts .………………………………………………………........... .............29
9. Trouble Shooting……………………………………………………………………………...40
CONTENT
Tableofconents…………………………………………………………………………..………..2
8.1Connetive Wire Photo......................................................................................................29
8.2Circuit Diagram................................................................................................................29

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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. General Information
1-1 General Guidelines

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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:

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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 HL19KN1
Screen size 18.5 inch
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

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Y P
B P R
YES
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
Number Input
NO
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

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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) 4.67
Gross weight(KG) 5.73
Net dimension(MM) 471/189/411
Packaged dimension(MM) 530/225/460
3. LOCATION OF CONTROLS AND COMPONENTS
3.1. Board Location

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No. Parts number Description
ABoard MainBoard Assembly
B Board Power adaptor
C
Speaker
3.2.A.Board----MainBoard
3.2. 1 Function Description:
Main Board：

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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)
Pin number
Signal
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

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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

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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 KeyConnector POWER

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7 K5 KeyConnector MENU
8 K4 Key Connector P-
9 K3 Key Connector P+
10 K2 Key Connector V-
11 K1 Key Connector V+
12 K0 KeyConnector SOURCE
3.3B Board-------(Power Board)
Supply power for Main board and Panel
Power supply and Inverter Connector（CN6）
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

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6 +12V 12V Power
7 +12V 12V Power
AC150V~AC240V Input (CN6)
Power supply for panel (CN2. CN3. CN4. CN5.)
3.4. LCD PANEL.

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4．DISASSEMBLE AND ASSEMBLE

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HL19KN1 KNOCKED-DOWN SHOW

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5. INSTALLATION INSTRUCTIONS
Accessories
RemoteControl UserManual Battery Audiowire

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