H-Buster HBTV-32D01HD, HBTV-42D01FD Schematic
MANUAL DE SERVIÇO
LCD TV
Model No.
HBTV-32D01HD
HBTV-42D01FD
TENÇÃO
A
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.
© 2010 H-Buster do Brasil
CONTENTS
Chapter 1.General Information
Service Manual
HBTV-32D01 / 42D01
1-1. General Guidelines
1-2. Important Notice
1-2-1. Follow the regulations and warnings ..................................................... 3
1-2-2. Be careful to the electrical shock ........................................................... 3
1-2-3. Electro static discharge (ESD) ...............................................................3
1-2-4. About lead free solder (PbF) .................................................................. 4
1-2-5. Use the genewing parts (specifi ed parts) .............................................. 4
1-2-6. Safety check after repairment ................................................................4
1-2-7. Ordering Spare Parts .............................................................................6
1-2-8. Photo used in this manual ..................................................................... 6
1-3. How to Read this Service Manual
1-3-1. Using icons: ...........................................................................................7
................................................................................ 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. HBTV-32D01HD
3-1-1. Remove the Stand
3-1-2. Remove the Back Cover
3-1-3. Remove the mainboard
3-1-4. Remove the Power Supply
3-1-5. Remove the Speaker
3-1-6. Remove the Remote Control Board
3-1-7. Remove the Keypad Assembly
3-1-8. Remove the Panel
3-2. HBTV-42D01FD
3-2-1. Remove the Stand
3-2-2. Remove the Back Cover
3-2-3. Remove the mainboard and bracket of Side AV
3-2-4. Remove the Power Supply
3-2-5. Remove the Speaker
3-2-6. Remove the Remote Control Board
3-2-7. Remove the Keypad Assembly
3-2-8. Remove the Metal Connecting Board
............................................................................... 13
...................................................................... 13
........................................................................ 13
................................................................... 13
............................................................................ 14
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............................................................................... 15
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...................................... 15
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....................................................... 16
.............................................................. 16
..................................................... 16
Chapter 4. Location of Controls and Components
4-1. Board Location
4-2. Main Board
4-2-1. Function Description: .................................................................................. 18
4-2-2. Connector defi nition .................................................................................... 18
4-3. Power Supply Board
4-3-1. Function description.................................................................................... 20
4-3-2. Connector definition.................................................................................... 20
...................................................................................... 17
............................................................................................ 18
................................................................................... 20
1
Service Manual
5-
HBTV-32D01 /42D01
4-4. LCD Panel
4-4-1. Function Description: ........................................................................... 22
4-4-2. Connector defi nition .............................................................................22
Chapter 5. Operation Instructions
C
. Get To K
5-1
5
5
5
-2. Get To K
Chapter 6. Electrical Parts
C
6-1. Mainboard Circuit Diagram
6-2. Power Supply Circuit Diagram
..............................................................................................
now Your TV
now Your Remote Control
......................................................................... 24
..................................................................28
............................................................38
.................................................
22
26
Chapter 7. Measurements and Adjustments
7-1. Service Mode
7-
7-1-1.How to enter into Service Mode
7-1-2.How
Chapter 8. Firmware Update (Atualização de Programa)
C
7-1. Initial Care (Cuidados Iniciais)
8-
7-2. Initial Procedures (Procedimentos Iniciais)
8-
to exit
(Modo
(sair
de Serviço)
do modo de serviço)
.......................................................42
(como
entrar no modo de serviço)
.....................................................
...........................................................
.......................................
.......42
42
43
43
.
8-3
Updating WKHfirmware (Atualizando o programa)
.
8-4
Firmware Update Diagram (Diagrama da Atualização do programa)
..................................................................................................................
Chapter 9. Exploded View and Parts List
C
9-1. HBTV-32D01HD
9-2. HBTV-42D01FD
.....................................................................................52
......................................................................................
..........................
44
45
54
2
Service Manual
HBTV-32D01 / 42D01
Chapter 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
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
To pr eve nt da mag e whi ch mi ght r es ul t in el ec tr ic sh ock o r fi re , do no t e xpo se th is T V set t o
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 (solid state) devices can be damaged easily by static electricity.
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).
3
Service Manual
HBTV-32D01 /42D01
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such
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.
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 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.
1-2-6. 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 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.
4
General Servicing Precautions
1. Always unplug the receiver AC power cord from the AC power source before:
a. Removing or reinstalling any component, circuit board module or any other receiver
assembly.
Service Manual
HBTV-32D01 / 42D01
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.
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).
CAUTION:
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.
A wrong part substitution or incorrect polarity installation of electrolytic capacitors
This is a fl ammable mixture.
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.
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.
Do not connect the test fi xture ground strap to any heat sink in this receiver.
5
Service Manual
HBTV-32D01 / 42D01
13. Use only an anti-static type solder removal device. Some solder removal devices not
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.
CAUTION:
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 and photos used in this Service Manual may not base on the final design of
products, which may differ from your products in some way.
6
1-3. How to Read this Service Manual
1-3-1. 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.
Service Manual
HBTV-32D01 / 42D01
Reference:
A “reference” guides the reader to other places in this binder or in this manual,
where he/she will fi nd additional information on a specifi c topic.
7
Service Manual
HBTV-32D01 /42D01
Chapter 2. Specification
2-1. Specification list
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2-2. External pictures (four faces)
2-2-1 HBTV-32D01HD
Service Manual
HBTV-32D01 / 42D01
Front Side
Left Side
9
Service Manual
HBTV-32D01 /42D01
Right Side
10
Back Side
2-2-2 HBTV-42D01FD
Service Manual
HBTV-32D01 / 42D01
Front Side
Left Side
11
Service Manual
HBTV-32D01 /42D01
Right Side
12
Back Side
Chapter 3. Disassemble and Assemble
3-1. HBTV-32D01HD
3-1-1. Remove the Stand
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3-1-3. Remove the mainboard
Service Manual
HBTV-32D01 / 42D01
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13
Service Manual
HBTV-32D01 /42D01
3-1-5. Remove the Speaker
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3-1-8. Remove the Panel
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3-2. HBTV-42D01FD
Service Manual
HBTV-32D01 / 42D01
3-2-1. Remove the Stand
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15
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