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NS-LCD40HD-09
(Chassis:ZORAN780)
TV
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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.
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
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1. Warning
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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
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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
in
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.
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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)
0
260W
AC110V
60Hz
Gross weight(KG) 26
Net dimension(MM) 1043*315*755
Packaged dimension(MM) 1058*330*780
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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:
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Main Board˖
Process signal which incept from exterior equipmentˈthen translate into signal that panel can display.
Signal flowing chart
3.2.2 Connector definition
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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)
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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:
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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
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3.4 LCD PANEL.
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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-
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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
1
2
3
4
5
6
7
8
9
10
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
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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
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4.2 HDMI CINNECTIONS
When the source device(DVD player or Set Top Box) supports HDMI
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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
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