Order No.: TV0902S0013V0
Model No. : HL32K1
CHASSIS: MTK5380L
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.
2009 (Qingdao Electronics limited company)
All rights reserved. Unauthorized copying and distribution is a violation of
law.
1
CONTENTS
Table of conents
1. General Information
1-1. General Guidelines...…………………………………………………..3
1-2. Important notice………………………………………………………...3
1-3. How to read this Service Manual……………………………………..4
2. Specifications
3. Location of Controls and Components
3-1.Board Location…………………………………………………………..7
3-2. Main Board & AV Board………………………………………………..7
3-3. Power Board…………………………………………………………….9
3-4. LCD Panel………………………………………………………………10
4. Disassemble and assemble
4-1 Remove the Pedestal ……………………………………………….…12
4-2 Remove the Back Cover…………………...…………………………..12
………………..................…………………………….2
…………...............…………………………..3
……………………………………………....................6
...........................7
…………………...........………….11
4-3 Remove the adhesive tape…….........…………………………………12
4-4 Remove the Terminal Bracket……………....…………………………12
4-5 Remove the power module……….......……………………………….13
4-6 Remove the Main board……………....……………………………….13
4-7 Remove the small power board……………………….………………13
4-8 Remove the speaker …....……………………………………………..13
4-9 Remove the remote control board …….....…………………………..13
5. Installation Instructions
5-1 External Equipment Connections …………………………..........…..14
5-2 HDMI Connections ..………………………….............................…...16
6. Operation Instructions
6-1 Front Panel Controls …………………………………………….........19
6-2 Back Panel Controls ……………...……………………………..........19
6-3 Universal Remote Controller...........................................................19
………..................………………..…..14
…………………………........................19
7. Electrical parts
7-1. Block diagram ...............................................................................21
7-2. Circuit Diagram..............................................................................21
7-3 .Wiring Connection Diagram...........................................................36
8. Measurements and Adjustments
8-1. Service Mode ..................................................................................37
............................................................................21
.......................................37
8-1-1.How to enter into Service Mode
......................................................37
8-1-2.How to exit
..................................................................................37
8-2. Measurements and Adjustments ..................................................37
9. Trouble shooting
9-1. Simple check ...............................................................................43
......................................................................43
9-2. Power Supply Board failure check ..............................................44
9-3. Main board failure check ..............................................................45
9-4. Pannel failure ...............................................................................47
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.
1-2-6. Take Care to Deal With The Cathode-Ray Tube
In the condition that an explosion-proof cathoderay tube is set in this equipment, safety is se-cured
against implosion. However, when removing it or serving from backward, it is dangerous to give a
shock. Take enough care to deal with it.
1-2-7. 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
1-2-8. 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.
1-2-9. 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
1-4-1. Using Icons
Icons are used to attract the attention of the reader to specific information. The meaning of each
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,
icon is
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.
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. Specification
Model
Screen size
Aspect ratio
Resolution
Contrast Ratio
Angel of view
Color display
OSD language
Color system
Audio system
Audio output power(Built-in)(W)
Audio output power(outer)(W)
Total power input（W）
HL32K1
32inch
16:9
×
768
1366
3000:1
H:178/V:178
16.7M
English
ATSC/NTSC
DK,BG,I, LL'
10W×2
No
90W
Voltage range（V）
Power frequency（Hz）
Time of sleep timer(MINS)
Net weight(KG)
Gross weight(KG)
Net dimension(MM)
Packaged dimension(MM)
120V±10% V
60HZ
240Min
12.5
15.3
796/230/590
870/267/657
3. LOCATION OF CONTROLS AND COMPONENTS
3-1 Board Location
No. Parts number Description
A Board Mainboard Assembly(0090719678B)
B Board Power Supply
3-2 Main Board & AV Board
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 (CNA1)
Pin number Signal number
1 SW
2 GND
3 +5VSB
4 GND
5 GND
6 +12V
7 +12V
Notes:
CNA1-Pin1:System power on / standby
System board will use this pin to control system power.
CN1
Pin number Signal number
1 Dimming
2 ON/OFF
3 GND
4 SELECT(NC)
Notes:
CN1-Pin2: Backlight on/off
The system can turn on or turn off the backlight of TFT LCD Panel through the power
supply unit path.
CN1-Pin1: Control the luminance of backlight.
The system can generate the PWN signal to control the strength of TFT LCD Panel’s
backlight through this connector.
CNA2
Pin number Signal number
1 +24V/16.5V
2 +24V/16.5V
3 GND
4 GND
Remote connector(CNE1)
Pin number Signal number
1 +5VSB
2 IR_IN
3 LED_RED
4 LED_GRE
5 GND
Keypad connector(CNE2)
Pin number Signal number
1 GND
2 ADIN1-K0
3 ADIN2-K1
Speaker connector(CNC1)
Pin number Signal number
1 SPEA_L+
2 SPEA_L3 SPEA_R_
4 SPEA_R+
Other connectors:
CNB2 to Upgrade the program of MTK5380L (U13) AND FLASH (U17)
3-3. Power Board
3-3-1 Function Description:
Supply power for Main board, Panel.
3-3-2Connectordefinition
CON2
CON3
CON4
CON5
3-4. LCD Panel
3-4-1 Function Description: Display the signal.
3-4-2 Connector definition
4.Disassemble and assemble
4-1 Remove the Pedestal
4-3. Remove the speaker
Lay down the unit so that rear
cover faces upward .
Remove the four screw from the rear
cover indicated by blue line.
Then remove the pedestal.
4-2 Remove the Back Cover
Remove the two screw from the speaker
indicated on figure above by blue line.
4-4 Remove the power module
Remove the fifteen screw indicated
on figure above by blue line.
Then remove the back cover from the
unit.
Remove the four screw indicated on the
figure above by .blue line
Then remove the power module.
4-5 Remove the the Main board
4-7 Remove the Terminal Bracket
Remove the eight screw indicated on
the figure above by blue line.
Remove the Main board.
4-6 Remove the remote control
and the keypad control
Remove the eight screw indicated on the
figure above by blue line.
Then remove the terminal bracket.
Remove the three screw
figure above by blue line.
Take out the remote control board and
the keypad control.
indicated on the
5.installation instruction
External Equipment
Connections
Accessories
DVD
TV
STB
CABLE VCR AUD
PICTURE AUDIO PC HDMI
INPUT
MUTE
VOL CH
MENU
ENTER
SLEEP DISPLAY
PLAY/PAUSE
REV
REPEAT
MTS/SAP
FREEZE
GUIDE
CCD ARC
STOPUSB REC
PREV NEXT
RECALL
EXIT
CH.LIST
FAVORITE
R
TFT-LCD TV
OWNER S MANUAL'
Please READ this manual carefully before
operating your TV, and retain it for future
reference.
MODEL:
HL26K
HL32K
HL37K
HL42K
HL47K
S
HL37T
HL52T
Remote control Owner`s manual Alkaline battery(AAA) 2
Antenna Connection
Over-the-air TV reception quality will depend on your antenna type, antenna location and antenna positioning.
Multi-family Dwellings/Apartments
(Connect to wall antenna socket)
Wall Antenna
Socket
Bronze Wire
ANT INANT IN
VHF Antenna
UHF Antenna
ANT INANT IN
RF Coaxial Wire (75 ohm)
Turn clockwise to tighten
Single-family Dwellings /Houses
(Connect to wall jack for outdoor antenna)
Outdoor
Antenna
To improve the picture quality in a poor signal area,
please purchase a signal amplifier and install properly.
If the antenna needs to be split for two TV`s, install a
2-Way Signal Splitter in the connections.
To install the antenna properly please contact a
professional in your area.
Bronze Wire
Be careful not to bend the bronze wire
when connecting the antenna.
External Equipment
Connections
NOTE: All cables shown are not included with the TV.
Choose Y
our Connection
There are several ways to connect your television,
depending on the components you want to connect and
the quality of the signal you want to achieve. The
following are examples of some different ways to connect
your TV with different input sources.
Connecting a
VCR
To avoid picture noise (interference), leave an adequate
distance between the VCR and TV.
Connection Option 1
Set VCR output switch to channel 3 or 4 and then tune
the TV to the same channel number.
Connection Option 2
1. Connect the audio and video cables from the VCR's
output jacks to the TV input jacks, as shown in the figure.
When connecting the TV to VCR, match the jack colors
(Video = yellow, Audio Left = white, and Audio Right = red).
If you connect a S-VIDEO output from VCR to the
S-VIDEO input, the picture quality is improved;
compared to connecting a regular VCR to the Video input.
2. Insert a video tape into the VCR and press PLAY on
the VCR. (Refer to the VCR owner`s manual.)
VGA AUDIOVGA AUDIO
AUDIOAUDIO
LL
DVI AUDIODVI AUDIO
RR
RR
OPTICAL OUTOPTICAL OUT
22
11
COMPONENT INCOMPONENT IN
VIDEO INVIDEO IN
PbPb
YY
11
LL LL
VIDEOVIDEO VIDEOVIDEO
AUDIOAUDIO AUDIOAUDIO
LL
S-VIDEOS-VIDEO
AUDIOAUDIO
RR
LL
PrPr
RR RR
VGAVGA
ANT INANT IN
22
HDMI INHDMI IN
11
VGA INVGA IN
AV OUTAV OUT
3. Select the input source with using the
INPUT button on the remote control, and
then press / button to select the source,
press ENTER button to confirm.
External A/V Source Setup
How to connect
Connect the audio and video cables from the external
equipment's output jacks to the TV input jacks, as shown
in the figure.
When connecting the TV to external equipment, match the
jack colors (Video = yellow, Audio Left = white, and Audio
Right = red).
How to use
1. Select the input source with using the INPUT button on
the remote control.
2. Press / button to select the desired source.
3. Press button to confirm.
ENTER
4. Operate the corresponding external equipment.
Connecting a DVD player
How to connect
1. Connect the DVD video outputs (COMPONENT) to
the Y Pb Pr jacks on the TV and connect the DVD audio
outputs to the YPbPr Audio IN jacks on the TV, as
shown in the figure.
2. If your DVD only has an S-VIDEO output jack,
connect this to the S-VIDEO input on the TV. as shown
in the figure.
Note
If your DVD player does not have component video
output, use S-Video.
How to use
1. Turn on the DVD player, insert a DVD.
2. Use INPUT button on the remote control to select
component mode.
3. Press Play button on external equipment for program
play.
4. Refer to the DVD player's manual for operating
instructions.
VGA AUDIOVGA AUDIO
AUDIOAUDIO
VGA AUDIOVGA AUDIO
AUDIOAUDIO
LL
DVI AUDIODVI AUDIO
RR
RR
LL
DVI AUDIODVI AUDIO
RR
RR
OPTICAL OUTOPTICAL OUT
22
11
COMPONENT INCOMPONENT IN
VIDEO INVIDEO IN
OPTICAL OUTOPTICAL OUT
COMPONENT INCOMPONENT IN
VIDEO INVIDEO IN
PbPb
YY
11
LL LL
VIDEOVIDEO VIDEOVIDEO
22
11
11
VIDEOVIDEO VIDEOVIDEO
AUDIOAUDIO AUDIOAUDIO
PbPb
YY
LL LL
AUDIOAUDIO AUDIOAUDIO
LL
S-VIDEOS-VIDEO
LL
S-VIDEOS-VIDEO
AUDIOAUDIO
AUDIOAUDIO
RR
LL
RR
LL
PrPr
RR RR
PrPr
RR RR
ANT INANT IN
22
HDMI INHDMI IN
11
VGAVGA
VGA INVGA IN
AV OUTAV OUT
Camcorder
Video Game Set
ANT INANT IN
22
HDMI INHDMI IN
11
VGAVGA
VGA INVGA IN
AV OUTAV OUT
Component Input ports
To get better picture quality, connect a DVD player to the
component input ports as shown below.
Component ports
on the TV
Y Pb Pr
Y Pb Pr
Video output ports
on DVD player
Y B-Y R-Y
Y Cb Cr
Y P P
BR
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