H-BUSTER HBTV-32D03HD User manual

LCD TV
Model No.
MANUAL DE SERVIÇO
HBTV-32D03HD
HBTV-42D03FD
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
Revisão 2

Service Manual
1
CONTENTS
Chapter 1.General Information
1-1. General Guidelines ................................................................................ 3
1-2. Important Notice .....................................................................................
3
1-2-1. Followthe 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 genewingparts (specified parts) ..............................................
4
1-2-6. Safety check after repairment................................................................
4
1-2-7. OrderingSpare Parts.............................................................................
6
1-2-8. Photo used in this manual .....................................................................
6
1-3. Howto Read this Service Manual......................................................
7
1-3-1. Usingicons . ..........................................................................................
7
Chapter 2. Specification
2-1. Specification list...................................................................................... 8
2-2. External pictures (four faces) .............................................................. 9
Chapter 3. Disassemble and Assemble
Chapter 4. Location ofControls and Components
4-1. Board Location.......................................................................................17
4-2. Main Board & AV Board .......................................................................18
4-2-1. Function Description ............................................................................18
4-2-2. Connector definition .............................................................................18
4-3. Power Supply Board............................................................................ 20
4-3-1. Function description ............................................................................ 20
4-3-2. Connector definition............................................................................. 20
4-4. LCD Panel
.............................................................................................. 22
4-4-1. Function Description: Display the signal ................................................. 22
4-4-2. Connector definition ................................................................................ 22
4
HBTV-32D03 / 42D03
3-1. HBTV-32D03HD
3-2. HBTV-42D03FD......................................................................................13
......................................................................................15
Chapter 5. Operation Instructions
5-1. Get To KnowYour TV......................................................................... 24
5-2. Get To KnowYour Remote Control
.................................................
26
C
5-
5
5

Service Manual
2
Chapter 6. Electrical Parts
.......................................................................................35
.......................................................................................36
7-1. Service Mode (Modo de Serviço) .......................................................47
7-1-1.Howto enter into Service Mode (como entrar no modo de serviço) .......47
7-1-2.Howto exit (sair do modo de serviço).....................................................47
7-2. Measurements and Adjustments ........................................................ 47
7-2-1. Memory Resetting (Reinicializando a memória) . ......................................47
Chapter 9. Troubleshooting(guia de defeitos)
9-1. Power Supply Board Failure Check...................................................51
9-2. Mainboard Failure Check.....................................................................52
C
6---1. Block Diagram
6-2. Circuit Diagram
7-
7-
C
9 -
9 -
Chapter 7. Measurements and Adjustments
HBTV-32D03 / 42D03
Chapter 8. Firmware Update (Atualização de Programa)
7-1. Initial Care (Cuidados Iniciais)
7-2. Initial Procedures (Procedimentos Iniciais)
.Updating firmware (Atualizando o programa)................................. 49
C
8-
8-
8-3
.......................................48
Chapter 10. Exploded View and Parts List
................................................................................. 53
................................................................................. 55
C
10-1. HBTV-32D03HD
10-2. HBTV-42D03FD
...........................................................48
.Firmware Update Diagram (Diagrama da Atualização do programa)
50
8-4
..................................................................................................................

Service Manual
3
Chapter 1.General Information
1-1. General Guidelines
When servicing, observe the original lead dress. Ifashort 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 followingleakage current checks to prevent the customer frombeing
exposed to shock hazards.
1) Leakage Current Cold Check
2) Leakage Current Hot Check
3) Prevention ofElectro Static Discharge (ESD) to Electrostatically Sensitive
1-2. Important Notice
1-2-1. Followthe regulations and warnings
Most important thingis 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 howto avoid the
possibility to get electrical shock fromthe 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 ofcontact with any inside part ofthis product.
This symbol indicates that there are important operatingand maintenance instructions
in the literture accompanyingthe appliance.
1-2-2. Be careful to the electrical shock
To prev e nt 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 drippingor splashingwater, and
objects filled with liquid, such as vases, must not be placed on top ofor above the TV.
1-2-3. Electro static discharge (ESD)
HBTV-32D03 / 42D03
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 ofcomponent damage caused by
electros static discharge (ESD).

Service Manual
4
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 oftypical
ES devices are integrated circuits and some field-effect transistors and semiconductor "chip"
components. The followingtechniques should be used to help reduce the ncidence ofcomponent
damage caused by static by static electricity.
1. Immediately before handlingany semiconductor component or semiconductor-equipped
assembly, drain off any electrostatic charge on your body by touchingaknown earth ground.
Alternatively, obtain and wear acommercially available dischargingwrist strap device, which
should be removed to prevent potential shock reasons prior to applyingpower to the unit under
test.
2. After removingan electrical assembly equipped with ES devices, place the assembly on a
conductive surface such as aluminumfoil, to prevent electrostatic charge buildup or exposure of
the assembly.
1-2-4. About lead free solder (PbF)
This product is manufactured usinglead-free solder as apart ofamovement within the
consumer products industry at large to be environmentally responsible. Lead-free solder must be
used in the servicingand repairingofthis product.
1-2-5. Use the genewingparts (specified parts)
Special parts which have purposes offire retardant (resistors), high-quality sound (capacitors),
lownoise (resistors), etc. are used.
When replacingany ofcomponents, be sure to use only manufacture's specified parts shown in
the parts list.
Safety Component
ƔComponents identified by mark have special characteristics important for safety.
1-2-6. Safety check after repairment
Confirmthat the screws, parts and wiringwhich 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 antennaterminal or external metal and
the AC cord plugblades. And be sure the safety ofthat.
General Servicing Precautions
HBTV-32D03 / 42D03
1. Always unplugthe receiver AC power cord fromthe AC power source before:
a. Removingor reinstallingany component, circuit board module or any other receiver
assembly.