H-Buster HBTV-22D02FD Schematic
MANUAL DE SER
LCD TV
Model No.: HBTV-22D02FD
Chassis: MTK5363
VIÇO
ATENÇÃO
Este manual técnico é de uso exclusivo da Rede Autorizada H-Buster. Não existem peças ou partes que possam
ser reparados pelo consumidor final, sob riscos de choque elétrico, causando ferimentos graves.
É proibida a distribuição, comercialização ou cópia deste documento. Sujeito a modificações.
© 2011 H-BUSTER DO BRASIL
CONTENTS
Chapter 1. General Information
Service Manual
HBTV-22D02FD
1-1. General Guidelines
1-2. Important Notice
1-3-1. Follow the regulations and warnings .....................................................3
1-3-2. Be careful to the electrical shock ...........................................................3
1-3-3. Electro static discharge (ESD) ...............................................................3
1-3-4. About lead free solder (PbF) ..................................................................4
1-3-5. Use the genewing parts (specifi ed parts) ..............................................4
1-3-6. Safety check after repairment ................................................................4
1-3-7. Ordering Spare Parts .............................................................................6
1-3-8. Photo used in this manual .....................................................................6
1-3. How to Read this Service Manual
1-3-1. Using icons: ...........................................................................................
..............................................................................3
...................................................................................3
..................................................7
Chapter 2. Specifi cation
2-1. Specifi cation list
2-2. External pictures (four faces)
...................................................................................8
..........................................................9
Chapter 3. Disassemble and Assemble
3-1. Remove the Stand
.............................................................................10
7
3-2. Remove the Back Cover
3-3. Remove the Main Board & Small Board
3-3-1. Remove the Mainboard and the Driver Board .....................................11
3-3-2. Remove the Remote Control Board..................................................... 11
3-3-3. Remove the Keypad Board ................................................................. 11
3-3-4. Remove the Speakers ......................................................................... 11
..................................................................10
.................................... 11
Chapter 4. Location of Controls and Components
4-1. Board Location
4-2. Main Board
4-2-1. Function Description.............................................................................13
4-2-2. Connector defi nition .............................................................................
4-3. Driver Board
4-4. Remote Control Board
4-5. LED Panel
.............................................................................................14
...................................................................................12
..........................................................................................12
13
.........................................................................................14
........................................................................14
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Service Manual
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HBTV-22D02FD
C
Chapter 5. Operation Instructions
5
5-1. Front Panel Controls
5
5
-2. BACK Panel Controls
5
-3. Remote Control
.
......................................................................... 15
.......................................................................
..................................................................................16
15
Chapter 6. Electrical Circuit
7-1. Power Tree
6
7-2. Wiring Connection Diagram
6
7-3. Circuit Diagram
6
8
............................................................................................ 18
........................................................... 18
...................................................................................19
Chapter 7. Measures and Adjustments
7
7-1. Service Mode
8
7-1-1.How to enter into Service Mode............................................................
7-1-2.How to exit
.......................................................................................
............................................................................................
36
36
36
Chapter 8. Firmware Update (Atualização de Programa)
8-1. Initial Care (Cuidados Iniciais)
8-2. Initial Procedures (Procedimentos Iniciais)
8-2-1. Needed tools (Ferramentas necessárias)
8-2-2. How to identify the Panel Type (Como identificar o modelo de painel de LCD)
............................................................................................................
...................................................... 37
.............................37
..........................................
37
37
8-2-3.
drive)
8-3. Updating the firmware (Atualizando o programa)
8-4. Firmware Update Diagram (Diagrama
opying the firmware to USB Memory Key (copiando o programa no pen-
C
............................................................................................................ 38
.................. 38
da atualização de programa)
..................................................................................................................39
Chapter 9. Exploded View and Parts List
9-1. Exploded View
9-2. Parts List
...............................................................................................
.....................................................................................
41
42
2
Chapter 1.General Information
1-1. General Guidelines
Service Manual
HBTV-22D02FD
When servicing,
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
observe the original lead dress. If a short circuit is found, replace all parts which
1-2. Important Notice
1-2-1. Follow the regulations and warnings
Most important
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).
thing is to list up the potential hazard or risk for the service personnel to open
This symbol indicates that high voltage is present inside.It is dangerous to make any
kind 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
pr eve nt da ma ge w hi ch m ig ht r es ul t in el ec tri c s hoc k o r fi re , do no t ex po se t hi s TV se t to
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 placed on top of or above the TV.
1-2-3. Electro static discharge (ESD)
Some semiconductor
Such components commonly are called Electrostatically Sensitive (ES) Devices. The following
techniques should be used to help reduce the incidence of component damage caused by
electros static discharge (ESD).
(solid state) devices can be damaged easily by static electricity.
3
Service Manual
HBTV-22D02FD
Electrostatically Sensitive (ES) Devices
Some
components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical
ES devices are integrated circuits and some field-effect transistors and semiconductor "chip"
components. The following techniques should be used to help reduce the ncidence of component
damage caused by static by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped
assembly, drain off any electrostatic charge on your body by touching a known earth ground.
Alternatively, obtain and wear a commercially available discharging wrist strap device, which
should be removed to prevent potential shock reasons prior to applying power to the unit under
test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a
conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of
the assembly.
semiconductor
(solid-state) devices can be damaged easily by static electricity. Such
1-2-4. About lead free solder (PbF)
This product is manufactured using lead-free solder as a part of a movement within the
consumer products industry at large to be environmentally responsible. Lead-free solder must be
used in the servicing and repairing of this product.
1-2-5. Use the genewing parts (specified parts)
Special parts
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.
which have purposes of fire retardant (resistors), high-quality sound (capacitors),
Safety Component
● Components identified by mark have special characteristics important for safety.
1-2-6. Safety check after repairment
Confirm that
original positions, or whether there are the positions 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.
the screws, parts and wiring which were removed in order to service are put in the
General Servicing Precautions
4
1. Always unplug the receiver
a. Removing or reinstalling any component, circuit board module or any other receiver
assembly.
AC power cord from the AC power source before:
Service Manual
HBTV-22D02FD
b. Disconnecting or reconnecting any receiver electrical plug or other electrical connection.
c. Connecting a test substitute in parallel with an electrolytic capacitor in the receiver.
wrong part substitution or incorrect polarity installation of electrolytic capacitors
CAUTION:
may result in an explosion hazard.
2. Test high voltage only by measuring it with an appropriate high voltage meter or other voltage
measuring device (DVM, FETVOM, etc) equipped with a suitable high voltage probe.
Do not test high voltage by "drawing an arc".
3. Do not spray chemicals on or near this receiver or any of its assemblies.
4. Unless specified otherwise in this service manual, clean electrical contacts only by applying
the following mixture to the contacts with a pipe cleaner, cotton-tipped stick or comparable nonabrasive applicator; 10% (by volume) Acetone and 90% (by volume) isopropyl alcohol (90%-99%
strength).
A
CAU
TION:
Unless specifi ed otherwise in this service manual, lubrication of contacts is not required.
Capacitors may result in an explosion hazard.
5. Do not defeat any plug/socket B+ voltage interlocks with which receivers covered by this
service manual might be equipped.
6. Do not apply AC power to this instrument and/or any of its electrical assemblies unless all
solid-state device heat sinks are correctly installed.
7. Always connect the test receiver ground lead to the receiver chassis ground before connecting
the test receiver positive lead.
Always remove the test receiver ground lead last. Capacitors may result in an explosion
hazard.
8. Use with this receiver only the test fi xtures specifi ed in this service manual.
CAUTION:
9. Remove the antenna terminal on TV and turn on the TV.
This is a fl ammable
Do not connect the test fixture ground strap to any heat sink in this receiver
mixture.
.
10. Insulation resistance between the cord plug terminals and the eternal exposure metal should
be more than Mohm by using the 500V insulation resistance meter.
11. 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.
5
Service Manual
HBTV-22D02FD
12. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
Use only an anti-static type solder removal device. Some solder removal devices not
13.
classified as "anti-static" can generate electrical charges sufficient to damage ES devices.
14. Do not use freon-propelled chemicals. These can generate electrical charges sufficient
to damage ES devices.
15. Do not remove a replacement ES device from its protective package until immedi-
ately before you are ready to install it.
(Most replacement ES devices are packaged with leads electrically shorted together by
conductive foam, aluminum foil or comparable conductive material).
16. Immediately before removing the protective material from the leads of a replacement ES
device, touch the protective material to the chassis or circuit assembly into which the device will
be installed.
CAU
TION:
precautions.
17. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise
harmless motion such as the brushing together of your clothes fabric or the lifting of your foot
from a carpeted floor can generate static electricity sufficient to damage an ES device.)
Be sure
no power is applied to the chassis or circuit, and observe all other safety
1-2-7. Ordering Spare Parts
Please include the following informations when you order parts. (Particularly the Version letter)
1. Model number, serial number and software version
The model number and serial number can be found on the back cover of each product. Software
version can be found in the Spare Parts List.
2. Spare part No. and description
Spare part No. and description can be found in the Spare Parts List.
1-2-8. Photo used in this manual
The illustration
products, which may differ from your products in some way.
and photos used in this Service Manual may not base on the final design of
6
1-3. How to Read this Service Manual
1-3-1. Using icons:
Icons are
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.
used to attract the attention of the reader to specific information. The
Service Manual
HBTV-22D02FD
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.
7
Service Manual
HBTV-22D02FD
Chapter 2. Specifi cation
2-1. Specifi cation list
Model HBTV
Screen Size 22 inches
Aspect Ratio 16:9
Resolution 1920*1080
Response Time (ms) 5ms
Angel of View H:170/V:160
Color Display 16.7M
No. of Preset Channels 181
OSD Language English/Brazil Portuguese
Color System PAL/NTSC/ISDB-T
Audio System M/N
Audio Output Power (Built-in) (W) 3W*2
Audio Output Power (outer) (W) No
-22D02FD
Total Power Input (W) 35W
Voltage Range (V) AC100V~240V
Power Frequency (Hz) 50~60Hz
Time of Sleep Timer (MINS) 240Min
Net Weight (KG) 3.17
Gross Weight (KG) 3.75
Net Dimension (MM) 528/160/388
Packaged Dimension (MM) 620/120/445
8
2-2. External pictures
Service Manual
HBTV-22D02FD
Front Side
Back Side
9
Service Manual
HBTV-22D02FD
Chapter 3. Disassemble and Assemble
3-1. Remove the Stand
1.
Lay down the unit so that back cover faces
upward.
picture 1
3-2. Remove the Back Cover
1.
Remove the 2 and 3 screws indicated in
picture 1.
2.Uncover the equipment, the FFC wire and
LVDS wire are s h o w n b e l o w (See picture 3).
Remove the FFC wire and LVDS wire from
the panel.
2. Remove
which are indicated with the number in the
picture above.
3. Remove the stand (See picture 2).
the 1 screw from the back cover
picture 2
picture 3
3. Then remove the back cover from the unit.
(See picture 4).
picture 4
10
3-3. Remove the Main Board &
Small Board
There are four boards in the machine:
A:Remote Control Board;B:Main Board;C:LED
Driver Board ;D:Keypad Board (See picture 5).
Service Manual
HBTV-22D02FD
picture 7
3-3-3. Remove the Keypad Board
There's no screw in this board,pull the keypad
board out from Front Cabinet directly.
picture 5
3-3-1. Remove the Mainboard and the
Driver Board
Remove the six screws indicated in picture 6.
ake out the mainboard and the drive board.
T
picture 8
3-3-4. Remove the Speakers
Remove the two screws indicated in picture 9
Take out one speaker
,then another as this.
picture 6
3-3-2.Remove the Remote Control Board
Remove the screw indicated in picture 7.
Take out the mainboard and the drive board.
picture 9
11
Service Manual
HBTV-22D02FD
Chapter 4. Location of Controls and Components
4-1. Board Location
No. Parts number Description
A Board
B Board
C Board
D Board
410262
497375
410254
410260
A PLACA PRINCIPAL SOMENTE PODE SER SOLICITADA
ATRAVÉS DO SUPORTE TÉCNICO !!!
4-2. Main Board (Placa Principal)
PCI Sensor Remoto
Placa Principal (V2)
PCI Inversora LCD
PCI do Teclado
12
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