Haier
COLOR TV
Model No. : HL19KN1
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)
All rights reserved. Unauthorized copying and distribution is a violation of law.
1
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
2
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. |
3
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:
4
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 |
|
|
5
Y PB PR |
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 |
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 |
|
|
6
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
7
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
8
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 |
10
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 |
11
7 |
K5 |
Key Connector MENU |
8 |
K4 |
Key Connector P- |
9 |
K3 |
Key Connector P+ |
10 |
K2 |
Key Connector V- |
11 |
K1 |
Key Connector V+ |
12 |
K0 |
Key Connector 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 |
|
|
|
12
6 |
+12V |
12V Power |
7 |
+12V |
12V Power |
AC150V~AC240V Input (CN6)
Power supply for panel (CN2. CN3. CN4. CN5.)
3.4. LCD PANEL.
13
4 DISASSEMBLE AND ASSEMBLE
14
HL19KN1 KNOCKED-DOWN SHOW
15
16
17