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
the product or products dealt with in this service information by anyone else could result in serious injury or death.
by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair
Document format: Adobe PDF
Author: Zhou Peng
Compiler: Bao Qinghong
1-2. 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
1-3. Important Notice
1-3-1. 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.
1-3-2. Be careful to the electrical shock
To prevent damage which might result in electric shock or re, do not expose this TV set to rain
or excessive moisture. This TV must not be exposed to dripping or splashing water, and objects
lled with liquid, such as vases, must not be placed on top of or above the TV.
1-3-3. Electro static discharge (ESD)
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such
Service Manual
Model No.: HLC32K2
4
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).
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.
1-3-4. 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.
1-3-5. Use the genewing parts (specied parts)
Special parts which have purposes of re retardant (resistors), high-quality sound (capacitors),
low noise (resistors), etc. are used.
When replacing any of components, be sure to use only manufacture's specied parts shown in
the parts list.
Safety Component
● Components identied by mark have special characteristics important for safety.
1-3-6 Safety check after repairment
Conrm 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.
General Servicing Precautions
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Model No.: HLC32K2
5
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.
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 specied 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 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 xtures specied 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 xture ground strap to any heat sink in this receiver.
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Model No.: HLC32K2
6
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static type solder removal device. Some solder removal devices not
classied as "anti-static" can generate electrical charges sufcient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to
damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately 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).
7. 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.
8. 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 oor can generate static electricity sufcient to damage an ES device.)
Be sure no power is applied to the chassis or circuit, and observe all other safety
1-3-7. 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.
1-3-8. 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.
1-4. How to Read this Service Manual
1-4-1. Using icons:
Icons are used to attract the attention of the reader to specic 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.
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Model No.: HLC32K2
7
Caution:
A “ c aution” i s used when t h e re is danger that the r e a d e r, 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.
Reference:
A “reference” guides the reader to other places in this binder or in this manual, where
he/she will nd additional information on a specic topic.
Service Manual
Model No.: HLC32K2
Chapter 2: Specication
2-1. Specication list
ModelHL32K2
Screen Size32 inch
Aspect Ratio16:9
Resolution1366x768
Response Time (ms)
Angel of View176
Color Display16777216
No. of Preset Channels181
OSD Language
Color SystemNTSC
Audio System M, BG, I, L, L'
Audio Output Power
(Built-in) (W)
Audio Output Power
(outer) (W)
Total Power Input (W)100W
Voltage Range (V)AC100V~240V
Power Frequency (Hz)50~60Hz
8 (GRAY TO
GRAY)
o
English/Franch/
Spanish
10W×2
No
Time of Sleep Timer
(MINS)
Net Weight (KG)11.3
Gross Weight (KG)13.8
Net Dimension (MM)798*230*575
8
240Min
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Model No.: HLC32K2
9
2-2 External pictures (four faces)
Front Side
Left Side
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Model No.: HLC32K2
10
Right Side
Back Side
Chapter 3. Disassemble and Assemble
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Model No.: HLC32K2
11
3-1 Remove the Stand
1. Lay down the unit so that back cover faces
upward
2. Remove the four screws from the back
cover which are indicated with the circles in the
picture above.
3. Remove the stand
2. Then remove the back cover from the unit.
3-3. Remove the Adhesive Tape
The location of the adhesive tape is shown
below.
Remove the adhesive tape.
3-2. Remove the Back Cover
1. Remove the twelve screws indicated (See
picture right.)
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Model No.: HLC32K2
12
3-4. Remove the Power Supply
Module
Remove the four screws indicated by the
red circles in below picture.
3-6. Remove the Keypad Board
Remove the two screws indicated by the red
circles in below picture.
3-5. Remove the Mainboard
Remove the four screws indicated by the rred
circles in below picture.
Disconnected the coupler .
Remove the Mainboard.
3-7. Remove the Speaker
3-8. Remove the Remote Control
Remove the two screws indicated by the red
circles in below picture.
Take out the remote control board.
Service Manual
Model No.: HLC32K2
Chapter 4. Location of Controls and Components
4-1. Board Location
No.Parts numberDescription
A BoardDC1670E0102MMain Board(0090724428)
B BoardPI160W240X200CPower Board
4-2. Main Board & AV Board
13
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Model No.: HLC32K2
14
4-2-1 Function Description:
Main Board
Process signal which incept from exterior equipment then translate into signal that panel can display.
CN1-Pin 2: Backlight on/off:
The system can turn on or turn off the backlight of TFT LCD Panel through the power supply
unit path.
CNA1-Pin 1: System power on / standby
System board will use this pin to control system power.
CN1-Pin 1: 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
Keypad and remote connector (CNE1,CNE2)
CNE1CNE2
Pin number
1
2
3
4
5
Signal namePin number
SB5V1
IR2
LED_R3
LED_G
GND
Signal name
GND
AD1
AD2
Speaker power connector (CON1)
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Model No.: HLC32K2
15
Pin numberSignal name
124V
224V
3GND
4GND
Speaker Connector (CON2)
Pin numberSignal name
1L+
2L3R4R+
Other connectors:
CNB2 to Upgrade the program of ZORAN785 (U1) AND FLASH (U7)
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Model No.: HLC32K2
16
4-3. Power Supply Board
4-3-1. Function description:
To supply power for Mainboard, Panel.
4-3-2. Connector denition:
INPUT CONNECTOR
CN402Signal name
1-2+12V
3-4GND
5+5V
6GND
7Power ON/OFF
8I_PWM/E_PWM
4-4. LCD Panel
CN402Signal name
9 I_PWM
10 BL_ON/OFF
11 E_PWM
CN401Signal name
1+24V
2+24V
3GND
4GND
Product Specification
LC320WXE
3-2.Interface Connections
This LCDmodule employstwokindsof interfaceconnection, 30-pin connectoris used forthe moduleelectronicsandtwo3-pinBalancePCBconnectorsare used fortheintegralbacklight system.
Remote control Owner’s manual Alkaline battery (AAA) x2
Antenna Connection
Over-the-air TV reception quality will depend on your antenna type, antenna location and antenna positioning.
ANT IN
VHF Antenna
UHF Antenna
Turn clockwise to tighten
Bronze Wire
Be careful not to bend the bronze wire
when connecting the antenna.
Bronze Wire
Multi-family Dwellings/Apartments
(Connect to wall antenna socket)
Wall Antenna
Socket
RF Coaxial Wire (75 ohm)
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.
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Service Manual
Model No.: HLC32K2
18
Chapter 5. Installation Instructions
5-1 External Equipment Connections
Installation
Choose Your 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.
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).
Camcorder or video
game set
Video= yellow
Audio left= white
Audio right= red
Back of TV
AV2 IN
How to use
Select the input source with using the AINPUT button
on the remote control.
Press
B
/button to select the desired source.
Press
C
ENTER button to confirm.
Operate the corresponding external equipment.
D
Component Setup
How to connect
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.
Back of VCR
Back of TV
Video= yellow
Audio left= white
Audio right= red
AV2 IN
Connection Option 1
Set VCR output switch to channel 3 or 4 and then turn
the TV to the same channel number.
Connection Option 2
Connect the audio and video cables from the VCR’s
A
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.
Insert a video tape into the VCR and press
B
PLAY on
the VCR. (Refer to the VCR owner’s manual.)
Select the input source with using the
C
INPUT button
on the remote control, and then press
/button
to select the source, press ENTER button to confirm.
External A V Source Setup
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Model No.: HLC32K2
19
Installation
Component video device
Component video cable:
Green=Y
Blue=CB/PB
Red=CR/PR
Audio cable:
White=Left audio
Red=Right audio
Back of TV
How to use
Turn on the DVD player, insert a DVD disc.
A
Use BINPUT button on the remote control to select
component mode.
Component Input ports
To get better picture quality, connect a DVD player to
the component input ports as shown below.
Component ports on the TVYPbPr
Video output ports on DVD
player
Y
Y
Y
Y
Pb
B-Y
Cb
P
B
Pr
R-Y
Cr
P
R
Connecting a DTV (digital TV)
This TV can receive Digital Over-the-air/Cable signals
without an external digital set-top box. However, if you do
receive Digital signals from a digital set-top box or other
digital external device, refer to the figure as shown below.
This TV supports HDCP (High-bandwidth Digital Contents
Protection) protocol for Digital Contents (480 p,720 p,1080 i).
How to connect
Use the TV’s COMPONENT, VGA or HDMI jack for •
video connections, depending on your set-top box
connector. Then, make the corresponding audio
connections.
How to use
Turn on the digital set-top box. (Refer to the owner’s
A
manual for the digital set-top box.)
Use INPUT on the remote control to select
B
COMPONENT, VGA or HDMI source.
SignalCOMPONENTHDMI
480 iYe sYe s
480 pYe sYe s
720 pYe sYe s
1080 iYe sYe s
1080 pYe sYe s
Connecting a digital audio output
Send the TV’s audio to external audio equipment (stereo
system) via the Digital Audio Output (Optical) port.
How to connect
Connect one end of an optical cable to the TV Digital
A
Audio (Optical) Output port.
Connect the other end of the optical cable to the
B
digital audio (optical) input on the audio equipment.
See the external audio equipment instruction
manual for operation.
Note
When connecting with external audio equipments,
such as amplifers or speakers, please turn the TV
speakers off.
!
Caution:
Do not look into the optical output port. Looking •
at the laser beam may damage your vision.
Connecting a computer
How to connect
To get the best picture quality, adjust the VGA A
graphics card to 1024s 768.
Use the TV’s VGA or DVI (Digital Visual Interface)
B
Audio IN port for audio connections, depending on
your computer connector.
If the graphic card on the computer does not •
output analog and digital RGB simultaneously,
Service Manual
Model No.: HLC32K2
20
Installation
connect only one of either VGA IN or HDMI IN to
display the VGA on the TV.
If the graphic card on the computer does output •
analog and digital RGB simultaneously, set the TV
to either VGA or HDMI; (the other mode is set to
Plug and Play automatically by the TV.)
Then, make the corresponding audio connection.
C
If using a sound card, adjust the VGA sound as
required.
Back of TV
PC/DVI
PC
PC IN
How to use
Turn on the computer and the TV.
A
Use INPUT on the remote control to select VGA or
B
HDMI source.
Check the image on your TV. There may be noise
C
associated with the resolution, vertical pattern,
contrast or brightness in VGA mode. If noise
is present, change the VGA mode to another
resolution, change the refresh rate to another rate
or adjust the brightness and contrast on the menu
until the picture is clear. If the refresh rate of the VGA
graphic card can not be changed, change the VGA
graphic card or consult the manufacturer of the VGA
graphic card.
Note
Use a DVI cable.
Avoid keeping a fixed image on the TV’s screen
for a long period of time. The fixed image may
become permanently imprinted on the screen.
The synchronization input form for Horizontal and
Vertical frequencies is separate.
Resolution
ModeResolution
Frame
frequency
(Hz)
VGA
640s480
60 Hz
SVGA
800s600
60 Hz
75 Hz
XGA
1024s768
60 Hz
75 Hz
HDMI and DVI input
When the source device (Blu-Ray player, DVD player
or Set Top Box) supports HDMI
How To Connect
Connect the source device to HDMI port of this TV
A
with an HDMI cable (not supplied with this product).
No separated audio connection is necessary.
B
How To Use
Turn on the TV. •
Turn on the Blu- Ray player, DVD player or Set Top •
Box.
Select HDMI input source on the TV using the INPUT •
button or HDMI button on the remote control.
When the source device (DVD player or Set Top Box)
supports DVI
How To Connect
Connect the source device to HDMI port of this TV
A
with a HDMI-to-DVI cable (not supplied with this
product).
A separated audio connection is necessary.
B
C
If the source device has an analog audio output
connector, connect the source device audio output to
DVI Audio In port located on the left side of HDMI port.
How To Use
If the source device supports Auto DVI function, •
the output resolution of the source device will be
Service Manual
Model No.: HLC32K2
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Installation
automatically set to 1280s720 p.
If the source device does not support Auto DVI, you •
need to set the output resolution appropriately.
To get the best picture quality, adjust the output
resolution of the source device to 1280s720 p.
Press the •INPUT button to select HDMI input source
in input source option of Select Main source menu.
Connecting Headphones
You can connect a set of headphones to your set
if you wish to watch a TV programme without
disturbing the other people in the room.
Back of TV
Plug a set of headphones into the 3.5 mm mini-jack
socket on the side panel of the set.
Note
Prolonged use of headphones at a high volume
may damage your hearing.
You will not receive sound from the speakers when
you connect headphones to the system.
Power source
TO USE AC POWER SOURCE
Use the AC polarized line cord provided for •
operation on AC. Insert the AC cord plug into a
standard polarized AC outlet.
Note
Never connect the AC line cord plug to other than
the specified voltage. Use the attached power cord
only.
If the polarized AC cord does not fit into a non-
polarized AC outlet, do not attempt to file or cut
the blade. It is the user’s responsibility to have an
electrician replace the obsolete outlet.
If you cause a static discharge when touching the
unit and the unit fails to function, simply unplug
the unit from the AC outlet and plug it back in. The
unit should return to normal operation.
Removing the table stand and
installing a wall mount bracket
Remove 5 s M4 screws
securing the stand to
the TV, then remove
the stand.
Use 4 s M8 screws
to secure the wall
bracket (not supplied)
to the back of your TV.
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Model No.: HLC32K2
22
Introduction
Introduction
Controls
This is a simplified representation of the TV front panel, side panel control buttons and side inputs.
TV Side panel controls and connections
K22 series
K2 series
L- AUDIO - R
HDMI1 INHDMI2 INUSB
AV 1 IN
S-VIDEO
VIDEO
MEN
UI
N
PU
T VO
L
+ VO
L
- C
H
+ CH
- PO
WERMENUI
NPU
T VO
L
+ VO
L
- CH
+ C
H
- PO
W
ER
1
MENU
Menu display. Press to access the on-screen
menu display.
2
INPUT
Press to access the input source mode. Press
repeatedly to change the source to the one
you want to watch. In the MENU screen, the
INPUT button serves as the ENTER button.
3
VOL +/-
Press to adjust the volume. In the MENU screen,
these buttons serve as left/right buttons.
4
CH +/-
Press to scan through channels. To scan quickly
through channels, press and hold down either
+/- . In the MENU screen, these buttons serve
as up/down buttons.
5
POWERPress to turn on and off the TV.
6
USB input
Connect a USB ash drive to view MPEG2 videos,
JPEG images or listen to MP3 songs
.
7
Av2 AUDIO IN
Connect the audio L/R cables from the video
signal source to these jacks.
8
AV2 VIDEO IN
Connects the composite video cable from an
external signal source to this jack.
9
S-VIDEO
Connects the S-VIDEO cables from an external
signal source to this jack.
0
Headphone
jack
Headphone audio output terminal.
A
HDMI In
Connect a HDMI device to receive digital audio
and uncompressed digital video.
B
Remote Sensor
Receivers IR signals from the remote control.
Do not put anything near the sensor, which
may block the remote control signal.
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Model No.: HLC32K2
23
Chapter 6. Operation Instructions
6-1. Front Panel Controls
Introduction
Connection Options
Back panel connections
PC/DVI
PC
PC IN
3
4
AV2 IN
1
Digital Audio
Output
Connect various types of digital audio equipment.
Note
In standby mode, these ports will not
work.
2
Antenna
Input
Connect cable or antenna signals to the TV,
either directly or through your cable box.
3
HDMI In
Connect a HDMI device to receive digital audio
and uncompressed digital video.
4
PC Audio In
Connect the audio L/R cables from a computer
to this jack.
5
PC Video In
Connect a video cable from a computer to this
jack.
6
VIDEO In
Connects the video signal from a video device.
7
Component
Video In
Connect a component video device to these jacks.
8
AUDIO In
Connect the audio L/R cables from the video signal
source to these jacks.
9
COMPONENT
AUDIO In
Connect the audio L/R cables from the component
video signal source to these jacks.
0
AUDIO Out
Connect the audio L/R cables to your audio equipment.
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Model No.: HLC32K2
24
6-2. Back Panel Controls
Introduction
Universal Remote control
The remote control cannot be operated unless the batteries are properly loaded.When using the remote control, aim it at the remote sensor on the TV.
1
POWERPress to turn on and off the TV.
2
TV DVD SETBOX CABLE
VCR AUD
To select one of the system modes in which the remote control
can be used.
3
PICTUREPress repeatedly to cycle through the available picture modes.
4
AUDIOPress to cycle through different sound settings.
5
INPUTShow the input source.
6
MUTESwitches the video sound on or off.
7
VOLUME UP/DOWNPress to adjust the volume.
8
MENUPress to open the on-screen menu.
9
THUMBSTICK (Up/
Down/Left/Right)
Allows you to navigate the on-screen menus and adjust the
system settings to your preference.
0
SLEEP buttonPress to display the sleep timer option.
A
USBPress to switch input source to USB in.
B
MTS/SAP
Selects MTS sound: Mono, Stereo, and SAP in Analog mode.
Change the audio language in DTV mode.
C
GUIDE
Press to display the guide when you are watching analog or
digital channels.
D
CCD(closed caption)Select a closed caption.
E
HDMIPress to select a device connected to the HDMI input
F
PCPress to select the computer connected to the VGA input
G
Number buttonsPress to change a channel.
H
tCVUUPO
Press to select digital channels. For example, to enter “54-3” ,
QSFTTiwitwBOEiw
I
RECALLPress to jump back and forth between two channels.
J
CHANNEL UP/DOWN
Press to scan through channels. To scan quickly between the
last two channels, press and hold down either +/-.
K
EXIT
Clears all on-screen displays and returns to TV viewing from any menu.
L
ENTERAccesses the highlighted item in the on-screen menu.
M
DISPLAY
Press to display the TV status information on the top of the TV screen.
N
RECPress to start the recording process
O
USB Functions
Control the USB System.
/ Rewind / Fast /
Backward /Forward Stop Play/Pause REPEAT
P
FREEZE
Press once to display a frozen image of the current program,
but audio continues. Press again to return to the program.
Q
CH.LISTOpen the channel list in TV.
R
FAV.LISTPress to open the favorite channel list in TV.
S
ARC(Aspect Ratio Control)
Press to change the aspect ratio.
Function introduction
Service Manual
Model No.: HLC32K2
25
6-3 Setting Up Your Remote Control
After being setting up properly, your remote control can operate in six different modes:
TV, VCR, CABLE, DVD, SETBOX or AUDIO.
Pressing the corresponding button on the remote control allows you to switch between these modes,
and control whichever piece of equipment you choose.
Note:
The remote control might not be compatible with all DVD Players, VCRs and Cable boxes.
PWM IN and DIMMING OUT will be used to DCR of PANEL.
LO = > POWER_ON
HI = > POWER_OFF
INVERTOR POWER
SELECT Low For Internal
1K PULL UP to
3V,for 42" lcd.
SELECT Hi For External
FOR MT8282
AUO 120Hz =3.3V
XR23
10K
XR23
10K
CN1
TJC2004-4A
CN1
TJC2004-4A
123
4
TP38TP38
XR12
NS/0
XR12
NS/0
C657
4.7uF/10v
C657
4.7uF/10v
CB993
1uF
CB993
1uF
R2 0R2 0
XQ4
2N3904
XQ4
2N3904
1
32
XR18
10k
XR18
10k
XR200XR20
0
+
CE51
47uF/16v+CE51
47uF/16v
XR8
47k
XR8
47k
R123
47K
R123
47K
CB152
0.1uF
CB152
0.1uF
Q70
AO3401
Q70
AO3401
1
23
T19T19
R1837
NS/0
R1837
NS/0
XQ6
2N3904
XQ6
2N3904
1
32
XC7
1uF
XC7
1uF
R18350R1835
0
R124
47K
R124
47K
TP39TP39
R10/NCR10/NC
CB154
0.1uF
CB154
0.1uF
XR5
1K/nc
XR5
1K/nc
XR21
10k
XR21
10k
XR61KXR6
1K
NC14
0.1uF
NC14
0.1uF
+
CE49
220uF/16v+CE49
220uF/16v
CND2
8X2 2mm
CND2
8X2 2mm
135791113
15
246
8
101214
16
R125 100KR125 100K
NR40NR4
0
XR13 4.7kXR13 4.7k
R1834
NS/10K
R1834
NS/10K
XR19
NS/0
XR19
NS/0
XR22
1k/NC
XR22
1k/NC
CB155
0.1uF/NC
CB155
0.1uF/NC
T18T18
D61N4148D61N4148
CND1
A2006WV0-16X2
CND1
A2006WV0-16X2
12
34
56
78
910
1112
1314
1516
1718
21
2019
22
2324
2526
2728
2930
3132
XQ5
2N3904
XQ5
2N3904
1
32
NC17
0.1uF
NC17
0.1uF
XR17 4.7kXR17 4.7k
Service Manual
Model No.: HLC32K2
40
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
GND
AV33
+12V
AVDD33_SIF
TUNER_DATA
AVDD33_DEMOD1
AVDD33_DIG
VIN_ATV
VIP_ATV
IF_AGCT
TUNER_CLK
AVSS33_DEMOD1
AVDD33_DEMOD1
AVSS33_DIG
AVDD33_DIG
AVSS33_SIF
AVDD33_SIF
TUNER_DATA
TUNER_CLKtuner_scl_T
IF_T_AGC
tuner_sda_T
IF_AGCTIF_AGC
DFAT_IN+
DFAT_IN-
tuner_scl_T
tuner_sda_T
VIP_ATV
VIN_ATV
DFAT_IN+
DFAT_IN-
IF_T_AGC
AV33AV33AV33
+5V_TUNER
+5V_TUNER+12V
+5V_TUNER
GND3,4,5,6,7,8,9,10,11,12,14
+12V3,10,11,12,14
AV333,4,6,8,9,10,12
VIP_ATV4
AVDD33_SIF3,4,6,8,9,10,12
AVDD33_MPX4
AVDD33_DIG3,4,6,8,9,10,12
IF_AGCT4
TUNER_CLK4
TUNER_DATA4
VIN_ATV4
Title
Size
Document Number
Rev
Date:Sheet
of
MediaTek Inc.
TEL:(03)567-0766 FAX:(03)578-7610
No.1-2, Innovation Rd 1, SBIP, Hsin-Chu City 300
Drawn
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TUNER
MediaTek Confidential
Title
Size
Document Number
Rev
Date:Sheet
of
MediaTek Inc.
TEL:(03)567-0766 FAX:(03)578-7610
No.1-2, Innovation Rd 1, SBIP, Hsin-Chu City 300
Drawn
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1315Friday, November 27, 2009
TUNER
MediaTek Confidential
Title
Size
Document Number
Rev
Date:Sheet
of
MediaTek Inc.
TEL:(03)567-0766 FAX:(03)578-7610
No.1-2, Innovation Rd 1, SBIP, Hsin-Chu City 300
Drawn
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1315Friday, November 27, 2009
TUNER
MediaTek Confidential
NEAR ICNEAR ICNEAR IC
TUNER POWER +5V_TUNER
Near Tuner
Near Tuner
Near IC
20090612
20090612
POWER SUPPLY +5V FOR TUNER
muRata: LQM18NNR22K00
和
LQM18NNR39K00
Near TunerNear MT538X
Use muRata Inductor and TDK Capacitor
+
ZC9
47uF/16v
+
ZC9
47uF/16v
ZC6
33pF
ZC6
33pF
L158
330nH
L158
330nH
ZC50
0.1uF
ZC50
0.1uF
ZR150ZR15
0
ZFB13
NC/0603
ZFB13
NC/0603
L153220nHL153220nH
C801
33pF
C801
33pF
C806 10nFC806 10nF
ZFB10
NC/0603
ZFB10
NC/0603
ZR26
10K
ZR26
10K
L154
390nH/NC
L154
390nH/NC
ZFB7
NC/0603
ZFB7
NC/0603
ZC7
33pF
ZC7
33pF
U9
7805U97805
IN
1
GND
2
OUT
3
ZR4
4.7K
ZR4
4.7K
ZFB9
NC/0603
ZFB9
NC/0603
ZFB150ZFB15
0
ZC47
0.1uF
ZC47
0.1uF
ZFB12
NC/0603
ZFB12
NC/0603
L152 220nHL152 220nH
ZR11 4.7kZR11 4.7k
C798 27pFC798 27pF
C807 27pFC807 27pF
L157
220nH
L157
220nH
TU1
DVT-8ADC/GW41F2
TU1
DVT-8ADC/GW41F2
GND12GND13GND14GND
15
NC
2
NC
1
NC
3
SDA
5
NC
6
IF AGC
9
DIF
10
SCL
4
+5V IF
7
DIF
11
AS_IF
8
C2NCC2
NC
L156 220nHL156 220nH
CB399
0.1uF
CB399
0.1uF
CB398
0.1uF
CB398
0.1uF
ZFB8
NC/0603
ZFB8
NC/0603
ZFB5FBZFB5
FB
R1839
100
R1839
100
C800 10nFC800 10nF
ZR3
4.7K
ZR3
4.7K
C802
100pF/NC
C802
100pF/NC
ZR9100ZR9100
ZFB110ZFB11
0
ZC32
47nF
ZC32
47nF
ZR80ZR80
C811
180pF
C811
180pF
ZFB14
NC/0603
ZFB14
NC/0603
CB197
0.1uF
CB197
0.1uF
ZFB6
NC/0603
ZFB6
NC/0603
ZC44
0.1uF
ZC44
0.1uF
ZR60ZR60
R1838
100
R1838
100
ZC8
10nF
ZC8
10nF
C804
100pF/NC
C804
100pF/NC
L1
330nH/NCL1330nH/NC
C810
180pF
C810
180pF
C1NCC1
NC
ZR10 100ZR10 100
Service Manual
Model No.: HLC32K2
41
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
GND
+12V
+5V
+5VSB
OPWRSB
OPCTRL2
VCCK
BL_ON/OFF
DIMMING
ADIN4
+12V_DVD
ADIN4
OPWRSB
SW_POWER
OPWM2
+3V3SB
OPWM2
VCCK
+12V+5V
+12V
+5V_DVD
+5V_DVD
+12V
+5VSB
+5VSB
+12V
GND3,4,5,6,7,8,9,10,11,12,13
OPWRSB4
+5V3,6,8,10,12
+12V3,10,11,12,13
+5VSB3,6,9
OPCTRL24,6
VCCK3,4
BL_ON/OFF12
DIMMING12
ADIN44
+3V3SB3,6,9
OPWM212
Title
Size
Document Number
Rev
Date:Sheet
of
MediaTek Inc.
TEL:(03)567-0766 FAX:(03)578-7610
No.1-2, Innovation Rd 1, SBIP, Hsin-Chu City 300
Drawn
MT5305A P1V1
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1415Friday, November 27, 2009
BACK LIGHT/MAIN POWER
MediaTek Confidential
Title
Size
Document Number
Rev
Date:Sheet
of
MediaTek Inc.
TEL:(03)567-0766 FAX:(03)578-7610
No.1-2, Innovation Rd 1, SBIP, Hsin-Chu City 300
Drawn
MT5305A P1V1
V1
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1415Friday, November 27, 2009
BACK LIGHT/MAIN POWER
MediaTek Confidential
Title
Size
Document Number
Rev
Date:Sheet
of
MediaTek Inc.
TEL:(03)567-0766 FAX:(03)578-7610
No.1-2, Innovation Rd 1, SBIP, Hsin-Chu City 300
Drawn
MT5305A P1V1
V1
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1415Friday, November 27, 2009
BACK LIGHT/MAIN POWER
MediaTek Confidential
LO = > POWER_ON
HI = > STANDBY
By Ray
5V MAIN POWER
shielding of 20-mil GND
0.925 x (1+Rup/Rdn) = 5.04V
shielding of 20-mil GND
DVD 5V POWER (OPTION)
0.925 x (1+Rup/Rdn) = 5.04V
DVD POWER SUPPLY
Hi : DVD Work
Lo : DVD Standby
MAIN POWER
5V&12V
输入
Lo : DVD PowerOn
Hi : DVD PowerOff
C13
0.1uF
C13
0.1uF
Q4
2N3904Q42N3904
1
32
C20
0.1uF
C20
0.1uF
+
CE2
220uF/16V
+
CE2
220uF/16V
R8
2.2KR82.2K
L3
10uH/3A
L5_9
L3
10uH/3A
L5_9
12
T6T6
XQ2
2N3904
XQ2
2N3904
1
32
Q3
2N3904Q32N3904
1
32
R9
2.7K_1%
R0603/SMDR92.7K_1%
R0603/SMD
R89
100K
R89
100K
T4T4
L4
10uH/3A
L5_9
L4
10uH/3A
L5_9
12
CPR14 0
R1206/SMD
CPR14 0
R1206/SMD
T12T12
XR14
47K
XR14
47K
CNA1
TJC3-7A
SIP-7P-2.5/HAIER_W
CNA1
TJC3-7A
SIP-7P-2.5/HAIER_W
1234567
CPC30
10nF
CPC30
10nF
C5
10nFC510nF
C14
0.1uF
C14
0.1uF
R21
100K
R21
100K
+
220uF/16v
CPC34
+
220uF/16v
CPC34
CPC32
0.1uF
CPC32
0.1uF
C3
0.1uFC30.1uF
XR10
4.7K
XR10
4.7K
R7
2.7K_1%
R0603/SMDR72.7K_1%
R0603/SMD
R4
12K_1%
R0603/SMDR412K_1%
R0603/SMD
C4
10nFC410nF
C19
10nF
C19
10nF
+
CE649
220uF/16V
+
CE649
220uF/16V
C18
0.1uF
C18
0.1uF
CPC28
1uF
CPC28
1uF
D13
ESD_0402_10pF
D13
ESD_0402_10pF
12
CPU2
MP1484
CPU2
MP1484
EN
7
FB
5
VCC
2
OUT
3
BST
1
GND
4
SS8COMP
6
R9110KR9110K
CPC37
10nF
CPC37
10nF
T2T2
T5T5
D12ESD_0402_10pFD12ESD_0402_10pF
12
CPU1
MP1484
CPU1
MP1484
EN
7
FB
5
VCC
2
OUT
3
BST
1
GND
4
SS8COMP
6
D14
ESD_0402_10pF
D14
ESD_0402_10pF
12
R10
2.2K
R10
2.2K
R90100KR90100K
CPC38
1uF
CPC38
1uF
D11
B340/NC
D11
B340/NC
R5
12K_1%
R0603/SMDR512K_1%
R0603/SMD
CN6
DVD_PWR
CN6
DVD_PWR
GND3GND4+12V5STB1+5V
2
XR71KXR7
1K
T3T3
Q46
2N3904
Q46
2N3904
1
32
+
CPC31
470UF/16V
+
CPC31
470UF/16V
C21
10nF
C21
10nF
R31KR31K
R2010KR2010K
CPC29
0.1uF
CPC29
0.1uF
T11T11
T1T1
D3
B340/NCD3B340/NC
Service Manual
Model No.: HLC32K2
42
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
ADIN5
PB_IN#2_SWPR2_SWO
Y_IN#2_SW
DVD_PB_IN#_SW
DVD_Y_IN#_SW
PB2_SWO
PR_IN#2_SW
DVD_PR_IN#_SWY2_SWO
YPBPR2/DVD_SEL
AIN4_R
AIN4_L
DVD_R_IN
PR_IN#2
Y_IN#2
PB_IN#2
DVD_Y_IN#_SWDVD_PB_IN#DVD_PB_IN#_SW
PR_IN#2
DVD_PR_IN#_SWDVD_Y_IN#
PB_IN#2_SW
DVD_PR_IN#
Y_IN#2PB_IN#2Y_IN#2_SWPR_IN#2_SW
DVD_L_IN
DVD_PB_IN#
DVD_Y_IN#
DVD_PR_IN#
DVD_IR
SOY1
Y1P
COM1
PR1P
PB1P
PR2_SWO
PB2_SWO
Y_IN#2
PB_IN#2
PR_IN#2
SY0
SC0_INSC0
SY0_IN
OPCTRL3
Y2_L#
Y2_R#
YPBPR_L_IN#2
YPBPR_R_IN#2
DVD_L#
DVD_R#
Y2_L#
DVD_L#
Y2_R#
DVD_R#
AIN4_R
AIN4_L
AV33
SY0
SC0
ADIN5
Y1P
SOY1
COM1
PR1P
PB1P
OPCTRL3
OPWM0
OPWM1
OPWM0
OPWM1
DVD_IR
Y2_SWO
GND
Y2_L#
Y2_R#
AIN4_L
AIN4_R
AV33
AV33
AV33AV33
AV33AV33
AV33
AV33
AIN4_L
AIN4_R
AV33
SY0
SC0
ADIN5
SOY1
Y1P
COM1
PR1P
OPCTRL3
OPWM0 4,7
OPWM1 4,7
PB1P
DVD_IR 6
GND4,5,6,7,8,9,10,11,12,13,14
Title
Size
Document Number
Rev
Date:Sheet
of
MediaTek Inc.
TEL:(03)567-0766 FAX:(03)578-7610
No.1-2, Innovation Rd 1, SBIP, Hsin-Chu City 300
Drawn
MT5305A P1V1
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1515Friday, December 04, 2009
DVD/YPbPr2/S_video Input
MediaTek Confidential
Title
Size
Document Number
Rev
Date:Sheet
of
MediaTek Inc.
TEL:(03)567-0766 FAX:(03)578-7610
No.1-2, Innovation Rd 1, SBIP, Hsin-Chu City 300
Drawn
MT5305A P1V1
V1
C
1515Friday, December 04, 2009
DVD/YPbPr2/S_video Input
MediaTek Confidential
Title
Size
Document Number
Rev
Date:Sheet
of
MediaTek Inc.
TEL:(03)567-0766 FAX:(03)578-7610
No.1-2, Innovation Rd 1, SBIP, Hsin-Chu City 300
Drawn
MT5305A P1V1
V1
C
1515Friday, December 04, 2009
DVD/YPbPr2/S_video Input
MediaTek Confidential
Inner DVD &L/R INPUT
Hi : No disk load
Hi->Lo->Hi : Disk loaded
OPCTRL3=1::DVD
OPCTRL3=0::YPBPR2
YPBPR/RL#2 INPUT
NEARLY ICNEARLY YPBPR CON.
Connected to connector GND
SV INPUT
NEARLY VGA CON.NEARLY IC
without InnerDVD:
75ȍ resistor will be NC;
5V330 video switch will be NC;
with InnerDVD:
BL1/BL2/BL3 will be NC ;
OPWM1/OPWM0=(0/0) YPbPr2 Audio =>AIN4_L/R;
OPWM1/OPWM0=(0/1) DVD Audio =>AIN4_L/R;
YPbPr2 & DVD VIDEO SWITCH
NEARLY CONNECTOR
NEARLY CONNECTOR
SV Audio Shares with AV2(Horizotal),which input to AIN0_L/R
without InnerDVD:
BR48/BR49 should be SMT ;74HC4052 will be NC.
with InnerDVD:
BR48/BR49 resistor will be NC; 74HC4052 will be SMT.
BR1068 BR1068
CB1005
0.1uF
CB1005
0.1uF
R1857
10K
R1857
10K
BR1256BR12
56
BR41 75BR41 75
R1854
10K
R1854
10K
BC1210nF BC1210nF
GR23
47K
GR23
47K
BR47 NCBR47 NC
BR45
10K
BR45
10K
GC16 2.2uFGC16 2.2uF
R1851
10K
R1851
10K
BR418 BR418
SR15 0SR15 0
GR2110KGR2110K
P6 S-VdieoP6 S-Vdieo
34
25
61
7
OC23
560pF
OC23
560pF
BD3
ESD_0402_10pF
BD3
ESD_0402_10pF
12
SD3
ESD_0402_10pF
SD3
ESD_0402_10pF
12
BC32 15pFBC3 2 15pF
R1859
10K
R1859
10K
BR43 75BR43 75
redw
BP2
RCA2X1
redw
BP2
RCA2X1
1
35
4
2
BC9
15pF
BC9
15pF
SR14
100
SR14
100
CE656
10uF/10V
CE656
10uF/10V
D83D83
12
C671
10uF/10v
C671
10uF/10v
BD1
ESD_0402_10pF
BD1
ESD_0402_10pF
12
SR18 10KSR18 10K
BC11
15pF
BC11
15pF
OC24
560pF
OC24
560pF
JRN2
47K
JRN2
47K
12
34
56
78
D85D85
12
D78D78
12
R1853
10K
R1853
10K
SC2
47pF
SC2
47pF
BR8100 BR8100
SR1375SR13
75
CE659
10uF/10V
CE659
10uF/10V
R1860
10K
R1860
10K
GR25 10KGR25 10K
BC5
15pF
BC5
15pF
OC25
560pF
OC25
560pF
BR42 75BR42 75
R1856
10K
R1856
10K
redgb
BP1
RCA3X1
redgb
BP1
RCA3X1
1
4
867523
BR70 BR70
C931
0.1uF
C931
0.1uF
CE658
10uF/10V
CE658
10uF/10V
GC15 2.2uFGC15 2.2uF
SC1
47nF
SC1
47nF
BC31.5nF BC31.5nF
BR1775BR17
75
BC410nF BC410nF
BR13 10KBR13 10K
R1850 1KR1850 1K
SD2
ESD_0402_10pF
SD2
ESD_0402_10pF
12
BR1456BR14
56
GC13 2.2uFGC13 2.2uF
D73D73
12
D82D82
12
GR14
47K
GR14
47K
BR31KBR31K
OC26
560pF
OC26
560pF
BC710nF BC710nF
CN13
DVD_YPbPr_IN
CN13
DVD_YPbPr_IN
PB_IN
2
DETECT
1
PR_IN
5
IR
7
GND
4
Y_IN
3
GND
6
U67
74LV4052D
U67
74LV4052D
2Y012Y2
2
2-COM
3
2Y342Y1
5
INH
6
GND7GND
8
VCC
16
1Y2151Y1
14
1-COM
13
1Y0121Y3
11
A10B
9
BR40 1KBR40 1K
R1855
10K
R1855
10K
T9T9
R1858
10K
R1858
10K
BR1668 BR1668
SC4
47pF
SC4
47pF
CE655
10uF/10V
CE655
10uF/10V
U53
PI5V330
U53
PI5V330
I1B6I0A2I1A3S1YA4I0B5YB7GND
8
I0D
14
E#
15
I1D13I0C
11
YD
12
VCC
16
I1C
10
YC
9
GC17 2.2uFGC17 2.2uF
BC31 15pFBC3 1 15pF
BR918 BR918
JRN3
47K
JRN3
47K
12
34
56
78
SC3
47nF
SC3
47nF
BR11 10KBR11 10K
R1862
10K
R1862
10K
GR2210KGR2210K
T10T10
SR1675SR16
75
BD5
ESD_0402_10pF
BD5
ESD_0402_10pF
12
BC33 15pFBC3 3 15pF
R1852
10K
R1852
10K
GR24
47K
GR24
47K
BL2
80/100MHZ/NC
BL2
80/100MHZ/NC
CN14
DVD_LR_IN
CN14
DVD_LR_IN
123
GC12 2.2uFGC12 2.2uF
T13T13
R1861
10K
R1861
10K
BC610nF BC610nF
SR12
100
SR12
100
CE654
10uF/10V
CE654
10uF/10V
BR656BR6
56
CE657
10uF/10V
CE657
10uF/10V
GR13
47K
GR13
47K
BR48 0/NCBR48 0/NC
BR2975BR29
75
GR26 10KGR26 10K
BR568BR5
68
GC14 2.2uFGC14 2.2uF
BR44 10KBR44 10K
BR3075BR30
75
SR11 0SR11 0
BD2
ESD_0402_10pF
BD2
ESD_0402_10pF
12
BL1
80/100MHZ/NC
BL1
80/100MHZ/NC
D84D84
12
BD4
ESD_0402_10pF
BD4
ESD_0402_10pF
12
BR1518 BR1518
C673
10uF/10v
C673
10uF/10v
BL3
80/100MHZ/NC
BL3
80/100MHZ/NC
C672
10uF/10v
C672
10uF/10v
D72D72
12
BR49 0/NCBR49 0/NC
Service Manual
Model No.: HLC32K2
43
Service Manual
Model No.: HLC32K2
7-3 .Wiring Connection Diagram
Customer Model
Service Model
Factory Model
Serial No.
Job Order No.
Country
Customer
Brand
HL32K2
HL32K2a
LA32K3
DC1670E0102
AT09SR1223US01
America
HAC
Haier
AC 120V/60Hz
9.WIRRING CONNECTION
DIAGRAM
LVDS Connector
Y
V
U
L
R
R
L
Y U
V
L R
AUDIO OUT
USB
Connecting sketch
Name
serial No.
No.
0090403211
0090402341
0090402070CLVDS wire
0090403399E
0090400647
0090401643E
0090402750
0090402340
power cord
Power supply wire
Amplifier wire
Speaker Wire
Remote control Wire
keypad Wire
Backlight Wire
(3)
44
Chapter 8. Measurements and Adjustments
Service Manual
Model No.: HLC32K2
45
8-1. Service Mode
8-1-1.How to enter into Service Mode
The way to the factory mode menu:
Step 1: Press Menu,
Step 2: Input 8893,
Step 3: Press “OK”
System will be into the factory mode menu when 3 steps above are done.
8-1-2.How to exit
If you want to exit this factory menu, please press the button ”Exit” on the remote.
8-2. Measurements and Adjustments
8-2-1. Version Info
Service Manual
Model No.: HLC32K2
46
8-2-2.Video
8-2-3. Audio
Service Manual
Model No.: HLC32K2
47
8-2-4. Picture Mode
Service Manual
Model No.: HLC32K2
48
8-2-5. Gamma
8-2-6. Panel Index
Tuner Diagnostic: Project debugging setting, used to inspect the audio function.
8-2-7. Back Light
Service Manual
Model No.: HLC32K2
49
8-2-8. Mod_Param
Service Manual
Model No.: HLC32K2
50
8-2-9. Function
8-2-10. Reste to default
Service Manual
Model No.: HLC32K2
51
Service Manual
Model No.: HLC32K2
52
Chapter 9. Trouble shooting
9-1. Simple check
Verify if the television is properly plugged
No picture/ No sound
Blank screen
Verify if the television is properly supplied power
Verify if electricity is available.
Verify if correct signals are input
Press INPUT button to change signal input to TV input
Restart the television of power supply is interrupted
No sound
Poor sound
No picture in some channel
No color for some channel
program (black and white)
Spots with some or all pictures
Press Mute button and verify if Mute mode is set.
Switch to otger channel and verify if the same problem
happens.
Press VOL+ button to see of he problem can be
solved.
Verufy if sound system is correct .Refer to some
chapter for adjust.
Verify if correct channel is selected.
Adjust the antenna.
Make adjustments by Fine Tune and MANUAL Scan.
Verify if the same problem exists in other channels.
check out of picture and sound system.
Refer to relative instructions in the Manual for color
adjust.
Verify if the antennal is correctly connected.
Verify if the antennal is in good condition.
Make ne adjustment of channel.
Horizontal/ vertical bars or picture
shaking
Television out of control
Check for local interference such as an electrical
appliance or power tool.
Disconnect the television from power supply and 10
seconds later, connect the television to the power
supply. If the problem still exists, contact authorized
after-sales service for technical assistance.
9-2. Power Supply Board Failure Check.
Service Manual
Model No.: HLC32K2
53
No Sound
(All Mode)
Check the input
Source
Change Source input
Check the
input/output
Re-soldering or change
IC U13
Check the
input/output
Re-soldering or change
IC U55
Check the
input/output
Re-soldering or change
IC U2
Check the
Speaker
Change the Speaker
Check the
Sperker wire
Service Manual
Model No.: HLC32K2
54
9-3. Mainboard Failure Check
Symptom: No Sound
Fail
Pass
Pass
Pass
Pass
Fail
Fail
Fail
Fail
Pass
9-4. Pannel Failure
Service Manual
Model No.: HLC32K2
55
Failure Mode
Block Defect :TCP cracking or cracking
Dim or L/D :TCP Sunken
:TCP lead cracking
:ACF bonding short
:Awful environment and
something electric enter
into LCD
:Mis-align between TCP and
Panel
:Panel failure
:TCP failure
Vertical color line(light or
dark forever)
Horiz o n t a l line(light or
dark forever)
V B/DVertical bar
PartNameDescriptionPhenomenaFailure cause
V DimVertal gray line
V L/D
TCP
H B/DHorizontal bar
H DimHorizontal gary line
H L/D
Service Manual
Model No.: HLC32K2
56
Bladder between Polarizer and
top glass
1.Chip lose action
2.IC ahort or jointiog bad
3.Pannel and vsc connect bad
Dot DefectBright dot dark dot in pannelIncoming Inspection Standard
Polarizer BubbleBladder in Polarizer
Polarizer ScratchPolarizer ScratchTine or rigidity arose