China HBTV-3201HD Schematic
SERVICE MANUAL
Order No.: TV0904S003V0
COLOR TV
Model No. : HBTV-3201HD
CHASSIS: Mstar 6U89
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.
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CONTENTS
Table of contents………………..................…………………………….2
1. General Information
1-1. General Guidelines...…………………………………………………..4
1-2. Important notice………………………………………………………...4
1-3. How to read this Service Manual……………………………………..5
…………...............…………………………..4
2. Specifications……………………………………………....................6
3. Location of Controls and Components
3-1.Board Location……………………………………………………………..7
3-1-1. L32R1 Board Location ……………………………………………………..7
3-2. Main Board……………………………………………………………7
3-2-1. Function Description……………………………………………………..8
3-2-2. Connector definition……………………………………………………..8
3-3. Power Board……………………………………………………………9
...........................7
3-3-1. Connector definition……………………………………………………9
3-3-2. Function Description……………………………………………………9
3-4. LCD Panel…………………………………………… …………… ……10
3-4-1. Connector definition……………………………………………………10
3-4-2. Function Description……………………………………………………11
4. Disassemble and Assemble
4-1 L32R1………………………………………………………………….…11
4-1-1 Remove the Pedestal………………………………………………….…12
4-1-2 Remove the Back Cover……………………………………………….…12
4-1-3 Remove the Main board……………………………………………….…12
4-1-4 Remove the power module…………………………………………….…12
4-1-5 Remove the speaker………………………………………………….…13
4-1-6 Remove the remote control……………………………………………. 13
…………………...........………….11
4-1-7 Remove the Keypad Assembly……………………………………….… 13
5. Installation Instructions ………..................………………..…..14
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6. Operation Instructions
…………………………........................19
6-1 Front Panel Controls …………………………………………….........19
6-2 Rear Panel Controls ……………...……………………………..........19
6-3 Setting up your Remote Controller....................................................20
7. Electrical Parts
............................................................................20
7-1. Circuit diagram ...............................................................................20
7-2 .Wiring Connection Diagram...........................................................31
8. Measurements and Adjustments
.......................................31
8-1. Service Mode ..................................................................................31
8-1-1.How to enter into Service Mode
8-1-2.How to exit…
8-1-3. The default of Factory Mode Menu
.....................................................................................31
............................................................31
...............................................31
9. Trouble Shooting
9-1. Simple check ...............................................................................32
......................................................................32
9-2. Main board failure check ..............................................33
9-3. Pannel failure ...............................................................................34
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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 king 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 prevent 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 dripping or splashing water, and objects
Filled with liquid, such as vases, must not be place 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
tech-niquesshouldbeusedtohelpreducetheincidenceofcomponentdamagecausedbyelectro
Static discharge (ESD).
1-2-4. About lead free solder (PbF)
This product is manufactured using lead-free solder as a part of a movement within the consum-er
products industry at large to be environmentally responsible. Lead-free solder must be used in the
servicing and repair 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.
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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 portions 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.
Insuration Test
1. Unplug the plug from the AC outlet.
2. Remove the antenna terminal on TV and turn on the TV.
3. Insulation resistance between the cord plug terminals and the eternal exposure metal
should be more than M ohm by using the 500V insulation resistance meter
4. 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
1-2-7. Ordering Spare Parts
Please include the following informations when you order parts. (Particularly the Version
letter)
1. Model number and Version letter
The model number can be found on the back of each product and the Version letter can
be found at the end of the serial number.
2. Part No. and Description
You can find them in your service manual.
1-2-8. Photo used in this manual
The illustration and photos used in this Manual may not base on the final design of products, which
may differ from your products in some way.
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.
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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.
2. Specifications
10.2KG(withstand)
796*233*582
(with stand
870*267*657
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3. Location of Controls and Components
3-1 Board Location
3-1-1
B
L32H8 Board Location
A
C
No. Parts number Description
A Board 0094001236DA LCD PANEL
B Board 0094001274A Power Supply
C Board DZ0UQ0E0102M Mainboard Assembly
3-2 Main Board
CON2
CON17
CN5
CON28
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3-2-1 Function Description:
Main Board：
Process signal which incept from exterior equipment，then translate into signal that panel can
display.
3-2-2 Connector definition
Main board connector
Power connectors (CON28)
CON28
Pin number Signal name
1 STN
2 GND
3 5VSTB
4 GND
5 GND
6 12VA
7 12VA
Notes:
CON28-Pin6.7 :The power for the mainboard when system power on.
CON28-Pin3 :The power for the mainboard when system standby.
CON28-Pin1 : System power on/standby, System board will use this pin to control system power.
Control connectors (CON2，CN5)
CON2
Pin number Signal name
1 ADJ
2 ON/OFF
3 GND
4 5V
Pin number Signal name Pin number Signal name
1 5VSTB 7 GND
2 GND 8 KEY1
3 LED-B 9 KEY2
4 LED-R
5 5VSTB
6 IRIN
Notes:
CON2-Pin3,4 : N/A
CON2-Pin2 : The control pin for the backlight.
CON2-Pin1 : The adjust pin for the backlight.
CN5-Pin6 : The pin for the remote.
CN5-Pin8,9 : The pin for the key.
Signal connectors (CON17)
CN5
8
CON17
Pin number Signal name
1 L +
2 L -
3 R -
4 R +
3-3. Power Board
3-3-1 Connector definition
CN2
CN2
PIN NUMBER DESIGNATION
1 12V
2 12V
3 GND
4 GND
5 5VSTB
6 GND
7 STN
8 SEL
9 V-IPWM
10 BL-ON
11 V-EPWM
3-3-2 Function Description:
Supply power for Main board and Panel
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3-4. LCD Panel
ensure
3-4-1 Connector definition
BACKLIGHT CONNECTOR PIN CONFIGURATION :
Description Min Typ Max Unit
1 Operating Voltage Vo 639 710 781 Vrms
2 Operating Current Io 12 12.5 13 mArms
3 BL Total Power Dissipation PBL 76
78
80 Watt
AU（T315XW02 VP）
Condition/Note
1. Dimming range is set 100%
2. Base on lamp specification, for each
lamp need to be applied at least
minimum operating voltage to ensure
each lamp can be normally worked!
1. Dimming range is set 100%
2. Base on lamp specification, for each
lamp need to be applied at least
minimum operating current to ensure
each lamp can be normally worked!
1. Dimming range is set 100%.
2. In order to get typical light out, the
backlight need to be applied typical
power.
3. Input power of JIG BD is about 78 W
(typ) by AUO measure!
At 0
℃
4 Striking Voltage
At
25℃
Vstrike
5 Striking Time Ts 1000
1500 1650
1350 1500
- 1500 msec
Vrms
6 Operating Frequency fo kHz
PWM Operating Frequency F_PWM 120 180 240 Hz
7
PWM Dimming Duty Ratio D_PWM
8
20
9 Lamp Type U type
100
-
%
10 Number of Lamps 4 pcs
10
1. Base on lamp specification, to
each lamp can be normally ignited,
need to apply at least minimum
striking voltage to each lamp
1. To ensure each lamp can be normally
ignited, each lamp need to be applied
at least minimum striking voltage
during minimum striking time.
1. Operating frequency is set by
customer.
2. Need to double confirm display
quality.(*)
1. PWM frequency is set by customer.
2. Need to double confirm display
quality.(*)
Note 1. Dimming range
Note 2.
Note 3. Duty ratio definition.
LVDS:
Connector on Panel: 093G30-B0001A-1 (Manufactured by
Pin No Symbol Description Default
1 VCC +12V, DC, Regulated
2 VCC +12V, DC, Regulated
3 VCC +12V, DC, Regulated
4 VCC +12V, DC, Regulated
5 GND Ground and Signal Return
6 GND Ground and Signal Return
7 GND Ground and Signal Return
8 GND Ground and Signal Return
9 LVDS Option Low/Open for Normal (NS), High for JEIDA NS mode
10 Reserved Open AUO internal test
11 GND Ground and Signal Return for LVDS
12 RIN0- LVDS Channel 0 negative
13 RIN0+ LVDS Channel 0 positive
14 GND Ground and Signal Return for LVDS
15 RIN1- LVDS Channel 1 negative
16 RIN1+ LVDS Channel 1 positive
17 GND Ground and Signal Return for LVDS
18 RIN2- LVDS Channel 2 negative
19 RIN2+ LVDS Channel 2 positive
20 GND Ground and Signal Return for LVDS
21 RCLK- LVDS Clock negative
22 RCLK+ LVDS Clock positive
23 GND Ground and Signal Return for LVDS
24 RIN3- LVDS Channel 3 negative
25 RIN3+ LVDS Channel 3 positive
26 GND Ground and Signal Return for LVDS
27 Reserved Open or High AUO internal test
28 Reserved Open or High AUO internal test
29 GND Ground and Signal Return
30 GND Ground and Signal Return
Starconn
)
3-4-2 Function Description:
Display the signal.
4. Disassemble and assemble
4-1. L32R1
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