Haier NS-LCD40HD-09 Schematic

TV-8888-121

NS-LCD40HD-09

(Chassis:ZORAN780)

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.

CONTENT

1. WAINING……………….……………………………………………………………………..3

2. SPECIFICATIONS…………………………………………………………………………... 6

3. LOCATION OF CONTROLS AND COMPONENTS…………………………………….. 7

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

3.2 Main Board…………….……………………………….. ……………………………...7

3.3 Power Board……………………………….. ………………………………………….11

3.5 LCD Panel……………………………….. …………………………………………….12

4. INSTALLATION INSTRUCTIONS………………………………………………………….14

4.1 External Equipment Connections………………………………….. ………………....14

4.2 HDMI Connections……………………………….. …………………………………….18

5. OPERATION INSTRUCTIONS……………………………………………………………..20

5.1 Front Panel Controls……………………………….. …………………………………..20

5.2 Back Panel Controls……………………………….. ………….………..……………...20

5.3 Universal Remote Controller……………………………….. …..……………………..20

6. DISASSEMBLY INSTRUCTIONS……………………………………..…………………...22

6.1 Whole Machine………………………………………………...………………………...24

6.2 Base Subassembly……………………………………………..…….………………....25

6.3 Back Subassembly…………………………………………..……….………………....26

6.4 Screen bracket Subassembly……………………………..…………………………...26

6.5 Front frame Subassembly…………………………………………….………………...27

6.6 Wire Subassembly…………………………………………………………………….…28

7. MEASUREMENTS AND ADJUSTMENTS……………………………………………..….29

8. BLOCK DIAGRAM AND CIRCUIT DIAGRAM…………………………………………….32

8.1 Block Diagram…………………………………………………………………………...32

8.2 Circuit Diagram……………………………………………………………………….….33

9. WIRING CONNECTION DIAGRAM………………………………………………………..44

10. TROUBLESHOOTING GUIDE…………………………………………………..………...45

10.1. Simple check…………………………………………………………..………….....45

10.2. PSU failure check…………………………………………………..…………….….48

10.3. Panel failure ……………..…………………………………………………………..49

1. Warning

IMPORTANT SAFETY INSTRUCTIONS

Read all of the instructions before using this appliance. When using this appliance, always exercise

basic safety precautions, including the following: Read instructions

Read all of the safety and operating instructions before you use your TV.

Retain instructions

Retain safety and operating instructions for future reference.

Follow warnings and instructions

Follow all warnings on your TV and in the operating instructions. Follow all operating and use

instructions.

Water and moisture

Do not use your TV near water. For example, do not use it near a bath tub, wash bowl, kitchen sink,

laundry tub, in a wet basement, or near a swimming pool.

Cleaning

Unplug your TV before cleaning. Do not use liquid or aerosol cleaners. Use only a damp cloth to clean

the exterior of your TV.

Ventilation

Slots and openings in the cabinet and the back or bottom are provided for ventilation, reliable operation,

and protection from overheating.These openings must not be blocked or covered.Do not block the

openings by placing your TV on a bed, sofa, rug, or other similar surface. Do not place your TV near or

over a radiator or heat register. Do not place your TV in a built-in installation, such as a bookcase or

rack, unless you provide correct ventilation or follow the manufacturer’s instructions.

Heat

Make sure that your TV is located away from heat sources such as radiators, heat registers,stoves, or

other products (including amplifiers) that produce heat.

Grounding or polarization

Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two

blades with one wider than the other. A grounding type plug has two blades and a grounding prong. The

wide blade or grounding prong are provided for your safety. If the plug does not fit, contact an

electrician to replace the

obsolete outlet.

Power cord protection

Route power cords so that they are not likely to be walked on or pinched by items placed on or against

them. Pay particular attention to cords at plugs, convenience receptacles, and the point where they exit

from your TV.

Attachments

Use only attachments recommended by Insignia.

Stand

Do not place your TV on an unstable cart, stand, tripod,bracket, or table. Your TV may

fall,causing serious personal injury and serious damage to your TV. Use only with a cart,

stand, tripod, bracket, or table recommended by the manufacturer, or sold with your TV. If you mount

your TV to the wall,follow the manufacturer’s instructions and use a mounting accessory recommended

by the manufacturer. Your TV and cart combination should be moved with care. Quick stops,excessive

force, and uneven surfaces may cause your TV and cart combination to overturn.

Lightning

For added protection for your TV’s receiver during a lightning storm, or when it is left unattended and

unused for long periods of time, unplug it from the power outlet and disconnect the antenna or cable

system. This helps prevent damage to your TV from lightning and power line surges.

Servicing

Do not attempt to service your TV yourself because opening or removing covers may expose you to

angerous voltage or other hazards. Refer all servicing to qualified service personnel.

Replacement parts

When replacement parts are required, make sure that the service technician uses replacement parts

specified by the manufacturer that have the same characteristics as the original part. Unauthorized

substitutions may result in fire, electric shock, personal injury, or other hazards.

Overloading

Do not overload power outlets and extension cords because this can result in a risk of fire or electric

shock.

Object and liquid entry

Never push objects of any kind into your TV through openings because objects may touch dangerous

voltage points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind

on your TV.

Damage requiring service

Unplug this TV from the power outlet and refer servicing to qualified service personnel under the

following conditions:

• When the power supply cord or plug is damaged or frayed.

• If liquid has been spilled or objects have fallen into your TV.

• If your TV has been exposed to rain or water.

• If your TV does not operate normally by following the operating instructions. Adjust only those controls

that are covered by the operating instructions because incorrect adjustment of other controls may result

damage and will often require extensive work by a qualified technician to restore your TV to its normal

operation.

• If your TV has been dropped or damaged in any way.

• When your TV exhibits a distinct change in performance.

Safety check

After completing any service or repair to this TV, ask the service technician to perform routine safety

checks to determine that your TV is in correct operating condition.

Power source

Operate your TV only from the type of power source indicated on the marking label. If you are not sure

of the type of power supplied to your home, consult your TV dealer or local power company.

Screen protection

Your TV’s screen is made of glass. Do not drop your TV or hit the glass screen. If the screen breaks, be

careful of broken glass. Reviewers: Please confirm.

Non-active pixels

The LCD panel contains almost 3 million thin film transistors, which provide exceptionally sharp video

quality. Occasionally, a few non-active pixels may appear on the screen as a fixed blue,green, or red

point. These non-active pixels do not adversely affect the performance of your TV, and are not

considered defects.

2. Specification

Screen size 40inch

Aspect ratio 16:9

Resolution 1920x1080

Model NS-LCD40HD-09

Response Time˄ms)

Angel of view 178

Color display 16777216

NO.of preset channels 181

OSD language English

Color system NTSC/ATSC

Audio system

Audio output power(Built-in)(W) 15W×2

Audio output power(outer)(W) YES

Total power input˄W˅

Voltage range˄V˅

Power frequency˄Hz˅

Time of sleep timer(MINS) 120Min

Net weight(KG) 21.5

8(GRAY TO GRAY)

260W

AC110V

60Hz

Gross weight(KG) 26

Net dimension(MM) 1043*315*755

Packaged dimension(MM) 1058*330*780

3. LOCATION OF CONTROLS AND COMPONENTS

3.1.Board Location

No. Parts number Description

A Board TV-5210-291 Power Board

B Board TV-5210-296 Main Board

3.2. Main Board

3.2.1 Function Description:

Main Board˖ Process signal which incept from exterior equipmentˈthen translate into signal that panel can display.

Signal flowing chart

3.2.2 Connector definition

Power connector(CN26)

Pin number Signal name Description

1 ON/OFF Control the power of system

2 GND Ground

3 5VSB Power of TV standby

4 GND Ground

5 GND Ground

6 12V Power of system

7 12V Power of system

IR connector (CN2)

Pin number Signal name Description

1 5V Supply the Power of bright and IR receiver

2 IR Receive IR signal

3 G Show green when TV standby

4 B Show blue when TV working

5 GND Ground

6 NC NC

Key connector(CN28)

Pin number Signal name Description

1 GND Ground

2 AD0 Control Power,CH+,CH-

3 AD1 Control Menu,V+,V-,INPUT

Backlight control connector(CN22)

Pin number Signal name Description

1 BKANJ Control the backlight of pannel

2 BKEN The system turn on or turn off the backlight of TFT LCD

Panel through the power supply unit path.

3 GND GND

4 5V Not use

LVDS Signal connector(CN23)

Pin number Signal name Pin number Signal name Pin number Signal name

1 LVDS VDD 9 Not use 17 A1P

2 LVDS VDD 10 Not use 18 A1N

3 LVDS VDD 11 Not use 19 A2P

4 LVDS VDD 12 Not use 20 A2N

5 Not use 13 A0P 21 GND

6 Not use 14 A0N 22 GND

7 GND 15 GND 23 CK1P

8 GND 16 LVDS_SEL 24 CK1N

Pin number Signal name

25 A3P

26 A3N

27 GND

28 GND

29 Not use

30 Not use

AMP connector(CN20)

Pin number Signal name Description

1 18V Power of Audio power amp

2 18V Power of Audio power amp

3 GND Ground

4 GND Ground

Speaker connector(CN21)

Pin number Signal name

1 L-

2 L+

3 R-

4 R+

3.3 Power Board

3.3.1 Function Description:

Supply power for Main board,Panel and DC/DC power board

3.3.2 Connector definition

CONNECTOR (CON2)

CON2 Signal name

1 24V

2 24V

3 24V

4 24V

5 24V

6 GND

7 GND

8 GND

9 GND

10 GND CON6 Signal name

1-2 16.5V

3-4 GND

CONNECTOR (CON6)

CONNECTOR (CON4)

CON4 Signal name

1 ON/OFF

2 GND

3 5VSB

4 GND

5 GND

6 12V

3.4 LCD PANEL.

3.4.1 Function Description:

Display the signal.

3.4.2 Connector definition

Pin No Symbol Description Note

1 Power DC 12V

2 Power DC 12V

3 Power DC 12V

4 Power DC 12V

5 Power DC 12V

6 GND GND

7 GND GND

8 GND GND

9 GND GND

10 RO[0]N ODD LVDS SINGAL-

11 RO[0]P ODD LVDS SINGAL+

12 RO[1]N ODD LVDS SINGAL-

13 RO[1]P ODD LVDS SINGAL+

14 RO[2]N ODD LVDS SINGAL-

15 RO[2]P ODD LVDS SINGAL+

16 GND GND

17 ROCLK- ODD LVDS SINGAL-

18 ROCLK- ODD LVDS SINGAL+

19 GND GND

20 RO[3]N ODD LVDS SINGAL-

21 RO[3]P ODD LVDS SINGAL+

22 NC NC

23 NC NC

24 GND GND

25 RE[0]P EVEN LVDS SINGAL-

26 RE[0]N EVEN LVDS SINGAL+

27 RE[1]P EVEN LVDS SINGAL-

28 RE[1]N EVEN LVDS SINGAL+

29 RE[2]P EVEN LVDS SINGAL-

30 RE[2]N EVEN LVDS SINGAL+

CN1(Header):S14B-PH-SM4-TB(D)(LF)(JST) or equivalent.

Pin No. Symbol Description

VBL +24V Power input

GND Ground

11 NC NC

12 BLON BL ON/OFF

13 PWM Internal PWM Control

14 NC NC

4. INSTALLATION INSTRUCTIONS

4.1 External Equipment Connections

Accessories

Remote Control User Manual Battery

Antenna Connection

Generally speaking, to enjoy a clearer picture, we recommend that you use a CATV system or an

outdoor antenna . location and antenna positioning

Antenna cables come in two types: 75 ohm and 300 ohm.

• If your antenna cable has a 75 ohm connector, connect the cable to the coaxial jack on the back of

your TV.

• If your antenna cable has a 300 ohm connector, connect the cable to a 300-75 ohm adapter (not

included), connect the adapter to a 75 ohm cable, then connect the other end of the 75 ohm connector

to the coaxial jack on the back of your TV.

Connecting cable TV

Your TV has a 75 ohm jack for connecting cable TV .Some cable TV providers scramble the signals

for “premium” (pay) channels. To view these channels, you need a converter/descrambler box.If you do

not have a converter/descrambler box,you can connect your cable TV directly to your TV. If you have a

converter/descrambler box, you can connect your cable TV using an RF switch (not supplied). For more

information about connecting a converter/descrambler box, contact your cable TV provider.

To connect cable TV without a converter/descrambler box:

1 Connect one end of a 75 ohm cable to the coaxial jack on the back of your TV.

2 Connect the other end of the cable to the cable TV wall outlet.

To connect cable TV with a converter/descrambler box:

• Use the following illustration to connect a converter/descrambler box. (The RF switch and the signal

splitter are not provided.) Set the RF switch to the A position to watch unscrambled channels controlled

by your TV

remote control. Set the RF switch to the B position to watch scrambled channels controlled by the

converter/descrambler controls.

External Equipment Connections

151617

4.2 HDMI CINNECTIONS

When the source device(DVD player or Set Top Box) supports HDMI

Cable sample

HDMI Cable

(not supplied with the product)

HDMI to DVI Cable

( not supplied with the product)

Analog Audio Cable

(Stereo to RCA type)

(not supplied with the product)

O USE AC POWER SOURCE

To connect your TV to a power outlet:

• Plug the power cord into a power outlet.

Notes

• Make sure that you use the correct type of power. See the label

on your TV.

• If you do not intend to use your TV for an extended period of time, unplug

the power cord from the power outlet.

• If the polarized AC cord does not fit into your non-polarized AC outlet, do

not attempt to file or cut the blade. It is your responsibility to have an

electrician replace the obsolete outlet.

• If you cause a static discharge when touching the TV and the

TV fails to function, unplug the TV from the AC outlet and plug

it back in. The TV should return to normal operation.

Wider Hole and Blade

Polarized AC Cord Plug

AC Outlet

+ 42 hidden pages