Sharp LC-32DH57E-BK User manual

SERVICE MANUAL
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRE-
CAUTION ............................................................i
Precautions for using lead-free solder ...............ii
End of life disposal ............................................ iii
CHAPTER 1. OPERATION MANUAL
[1] SPECIFICATIONS ......................................... 1-1
[2] OPERATION MANUAL .................................. 1-2
[3] DIMENSIONS ................................................ 1-6
CHAPTER 2. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS ................... 2-1
CHAPTER 3. ADJUSTMENT PROCEDURE
[1] ADJUSTMENT PROCEDURE ....................... 3-1
CHAPTER 4. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE....................... 4-1
CHAPTER 5. MAJOR IC INFOMATIONS
[1] MAJOR IC INFOMATIONS ............................ 5-1
CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM
[1] SYSTEM BLOCK DIAGRAM.........................6-1
[2] OVERALL WIRING DIAGRAM ......................6-2
CHAPTER 7. PRINTED WIRING BOARD
[1] MAIN UNIT PRINTED WIRING BOARD........7-1
[2] LED UNIT/KEY UNIT PRINTED WIRING
BOARD..........................................................7-5
[3] POWER UNIT PRINTED WIRING
BOARD..........................................................7-6
[4] INVERTER UNIT PRINTED WIRING
BOARD..........................................................7-8
CHAPTER 8. SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIA-
GRAM............................................................8-1
[2] SCHEMATIC DIAGRAM ................................8-2
Parts Guide
TopPage
CONTENTS
No. S59Z3LC32DH57
LCD COLOUR TELEVISION
MODELS
LC-32DH57E-BK
LC-32DH57RU-BK
LC-32DH57S-BK
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its orig-
inal condition and only parts identical to those specified should be used.
LC-32DH57E-BK/RU-BK/S-BK

LC-32DH57E-BK/RU-BK/S-BK
i
LC-32DH57E-BK Service Manual
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRECAUTION
WARNING
1. For continued safety, no modification of any circuit should be
attempted.
2. Disconnect AC power before servicing.
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform the following
safety checks:
3. Inspect all lead dress to make certain that leads are not pinched,
and check that hardware is not lodged between the chassis and
other metal parts in the receiver.
4. Inspect all protective devices such as non-metallic control knobs,
insulation materials, cabinet backs, adjustment and compartment
covers or shields, isolation resistor-capacitor networks, mechanical
insulators, etc.
5. To be sure that no shock hazard exists, check for leakage current in
the following manner.
• Plug the AC cord directly into a 220~240 volt AC outlet.
• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral-
leled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or elec-
trical ground connected to an earth ground.
• Use an AC voltmeter having with 5000 ohm per volt, or higher, sen-
sitivity or measure the AC voltage drop across the resistor.
• Connect the resistor connection to all exposed metal parts having a
return to the chassis (antenna, metal cabinet, screw heads, knobs
and control shafts, escutcheon, etc.) and measure the AC voltage
drop across the resistor.
All checks must be repeated with the AC cord plug connection
reversed. (If necessary, a nonpolarized adaptor plug must be used
only for the purpose of completing these checks.)
Any reading of 1.05 V peak (this corresponds to 0.7 mA peak AC.)
or more is excessive and indicates a potential shock hazard which
must be corrected before returning the monitor to the owner.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
SAFETY NOTICE
Many electrical and mechanical parts in LCD color television have
special safety-related characteristics.
These characteristics are often not evident from visual inspection, nor
can protection afforded by them be necessarily increased by using
replacement components rated for higher voltage, wattage, etc.
Replacement parts which have these special safety characteristics are
identified in this manual; electrical components having such features
are identified by “ ” and shaded areas in the Replacement Parts
List and Schematic Diagrams.
For continued protection, replacement parts must be identical to those
used in the original circuit.
The use of a substitute replacement parts which do not have the same
safety characteristics as the factory recommended replacement parts
shown in this service manual, may create shock, fire or other hazards.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:
CAUTION:
FOR CONTINUED PROTECTION AGAINST A
RISK OF FIRE REPLACE ONLY WITH SAME
TYPE FUSE.
F7001, F7002 (3.15A/250V)
DVM
AC SCALE
1.5k ohm
10W
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
0.15 µ F
TEST PROBE

LC-32DH57E-BK/RU-BK/S-BK
ii
Precautions for using lead-free solder
Employing lead-free solder
• “PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The
alphabetical character following LF shows the type of lead-free solder.
Example:
Using lead-free wire solder
• When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause dam-
age or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 °C, we recommend you to use a dedicated soldering
bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area.
Soldering
• As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 °C which is higher than the conventional lead solder by 40 °C, and as it has poor
solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be
peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the
steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as
required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
• Be careful when replacing parts with polarity indication on the PWB silk.
Lead-free wire solder for servicing
Part No. Description Code
ZHNDAi123250E J φ0.3mm 250g (1roll) BL
ZHNDAi126500E J φ0.6mm 500g (1roll) BK
ZHNDAi12801KE J φ1.0mm 1kg (1roll) BM
LFa
Indicates lead-free solder of tin, silver and copper.
LF a/a
Indicates lead-free solder of tin, silver and copper.

LC-32DH57E-BK/RU-BK/S-BK
iii
End of life disposal
End of life disposal
Attention: Your
product is marked
with this symbol.
It means that used
electrical and
electronic products
should not be
mixed with general
household waste.
There is a separate
collection system for
these products.
A. Information on Disposal for Users (private households)
1. In the European Union
Attention: If you want to dispose of this equipment, please do not use the ordinary dust bin!
Used electrical and electronic equipment must be treated separately and in accordance with legislation that
requires proper treatment, recovery and recycling of used electrical and electronic equipment.
Following the implementation by member states, private households within the EU states may return their
used electrical and electronic equipment to designated collection facilities free of charge*. In some countries*
your local retailer may also take back your old product free of charge if you purchase a similar new one.
*) Please contact your local authority for further details.
If your used electrical or electronic equipment has batteries or accumulators, please dispose of these
separately beforehand according to local requirements.
By disposing of this product correctly you will help ensure that the waste undergoes the necessary treatment,
recovery and recycling and thus prevent potential negative effects on the environment and human health
which could otherwise arise due to inappropriate waste handling.
2. In other Countries outside the EU
If you wish to discard this product, please contact your local authorities and ask for the correct method of
disposal.
For Switzerland: Used electrical or electronic equipment can be returned free of charge to the dealer, even if
you don’t purchase a new product. Further collection facilities are listed on the homepage of www.swico.ch
or www.sens.ch.
B. Information on Disposal for Business Users
1. In the European Union
If the product is used for business purposes and you want to discard it:
Please contact your SHARP dealer who will inform you about the take-back of the product. You might be
charged for the costs arising from take-back and recycling. Small products (and small amounts) might be
taken back by your local collection facilities.
For Spain: Please contact the established collection system or your local authority for take-back of your used
products.
2. In other Countries outside the EU
If you wish to discard of this product, please contact your local authorities and ask for the correct method of
disposal.
The battery supplied with this product contains traces of Lead.
For EU: The crossed-out wheeled bin implies that used batteries should not be put to the general household
waste! There is a separate collection system for used batteries, to allow proper treatment and recycling in
accordance with legislation. Please contact your local authority for details on the collection and recycling
schemes.
For Switzerland: The used battery is to be returned to the selling point.
For other non-EU countries: Please contact your local authority for correct method of disposal of the used
battery.

LC-32DH57E-BK/RU-BK/S-BK
1 – 1
LC-32DH57E-BK Service Manual
CHAPTER 1. OPERATION MANUAL
[1] SPECIFICATIONS
Item LCDCOLOURTV(32"), LC-32DH57E, LC-32DH57RU, LC-32DH57S
LCD panel Advanced Super View & BLACK TFT LCD (32")
Resolution 1,049,680 pixels (1,366 x 768)
Video Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV Function
TV-Standard
Analogue CCIR (B/G, I, D/K, L/L’)
Digital DVB-T (2K/8K OFDM)
Receiving Channel
VHF/UHF IR A ch_E69 ch (Digital), E2_E69 ch, F2_F10 ch, I21_I69 ch, IR A_IR J ch
CATV Hyper-band, S1_S41 ch
TV-Tuning System Auto Preset 999 ch (non-Nordic [DTV]), Auto Preset 9999 ch (Nordic [DTV]), Auto Preset 99 ch
(ATV), Auto Label, Auto Sort
STEREO/BILINGUAL NICAM/A2
Viewing angles 176 ° (H), 176 ° (V)
Audio amplifier 10 W x 2
Speaker (35 mm x 100 mm) x 2
Terminals
Antenna UHF/VHF 75
Ω Din type (Analogue & Digital)
RS-232C D-Sub 9 pin male connector
EXT 1 SCART (AV input, Y/C input, RGB input, TV output)
EXT 2 SCART (AV input/monitor output, Y/C input)
EXT 3 COMPONENT IN (Y/P
B (C B )/P R (C R ), RCA pin (AUDIO R/L))
EXT 4 15 pin mini D-sub
HDMI 1 (EXT 5) HDMI
HDMI 2 (EXT 6) HDMI
HDMI 3 (EXT 7) HDMI
EXT 8 RCA pin (AV input)
SERVICE USB
HDMI 2/PC AUDIO (R/L) Ø 3.5 mm jack*
DIGITAL AUDIO OUTPUT Optical Digital audio output
C. I. (Common Interface) EN50221, R206001
OUTPUT RCA pin (AUDIO R/L)
Headphones Ø 3.5 mm jack (Audio output)
OSD language
Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Italian,
Latvian, Lithuanian, Norwegian, Polish, Portuguese, Russian, Slovak, Slovene, Spanish, Swedish,
Turkish, Ukrainian
Power Requirement AC 220-240 V, 50 Hz
Power Consumption (Method IEC62087)
90 W (0.6 W Standby)
Weight 10.5 kg (Without stand), 11.5 kg (With stand)
Operating temperature 0°Cto+40°C
The HDMI 2 and EXT 4 terminals can both use the same audio input terminal.
As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification changes for product
improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be
some deviations from these values in individual units.
NOTE
Refer to the inside back cover for dimensional drawings.
*
•
•
Optional accessory
The listed optional accessory is available for this LCD
colour TV. Please purchase them at your nearest shop.
Additional optional accessories may be available in the near
future. When purchasing, please read the newest catalogue for
compatibility and check the availability.
•
No. Part name Part number
1Wall mount bracket (LC-
32DH57E, LC-32DH57RU,
LC-32DH57S)
AN-37AG5

LC-32DH57E-BK/RU-BK/S-BK
1 – 2
[2] OPERATION MANUAL
TV (Front view)
4
5
6
7
8
1 2 3
Remote control sensor
OPC sensor
(Standby/On indicator)
(Power button)
MENU (Menu button)
(Input source button)
P/ (Programme [channel]
buttons)
+/- (Volume buttons)
1
2
3
4
5
6
7
8
TV (Rear view)
1
2
3
4
5
78 9
14 15 16 17
10
12
13
11
6
COMMON INTERFACE slot
SERVICE terminal (USB terminal
for service personnel only)
HDMI 3 (HDMI) terminal
EXT 8 terminals
Headphones
AC INPUT terminal
EXT 4 (ANALOGUE RGB)
terminal
HDMI 1 (HDMI) terminal
HDMI 2 (HDMI) terminal
Antenna terminal
HDMI 2/PC AUDIO (R/L) jack*
DIGITAL AUDIO OUTPUT
terminal
RS-232C terminal
EXT 3 (COMPONENT/AUDIO)
terminals
EXT 1 (RGB) terminal
EXT 2 (AV) terminal
OUTPUT (AUDIO) terminals
WARNING
Excessive sound pressure from earphones
and headphones can cause hearing loss.
Do not set the volume at a high level.
Hearing experts advise against extended
listening at high volume levels.
The SERVICE terminal is reserved only
for qualified service personnel. Do not
connect anything to the terminal.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
•
•
•
The HDMI 2 and EXT 4 terminals can both use the same audio input terminal (HDMI 2/PC AUDIO (R/L)). However, the
proper item must be selected in the “PC Audio Select” menu.
*

LC-32DH57E-BK/RU-BK/S-BK
1 – 3
Remote control unit
(Standby/On)
Numeric buttons 0-9
Set the channel.
Enter desired numbers.
Set the page in teletext mode.
When the five Nordic countries
(Sweden, Norway, Finland,
Denmark, or Iceland) are
selected in the country setting
from “Auto Installation”, DTV/A
TV channels are four digits.
When another country is
selected, DTV/ATV channels
are three digits.
(Flashback)
Press to return to the previously
selected channel or external
input.
(WIDE MODE)
Select a wide mode.
(Freeze)
Press to freeze a moving image
on the screen.
/ / / (Cursor)
Select a desired item on the
setting screen.
OK
Execute a command within the
“MENU” screen.
TV: Display the programme list
when no other “MENU” screen
is running.
END
Exit the “MENU” screen.
Colour (Red/Green/Yellow/
Blue) buttons
The coloured buttons are
correspondingly used to select
the coloured items on the screen
(e.g., EPG, MHEG-5, Teletext).
EPG
TV: Display the EPG screen.
1
2
•
3
4
5
6
7
8
9
1
2
3
4
5
7
6
8
9
10
11
13
12
14
15
16
17
(Display information)
Press to display the station
information (channel number,
signal, etc.) in the upper right
corner of the screen.
SLEEP
Press to schedule a time for the
TV to automatically standby.
AV MODE
Select a video setting.
ECO (Off/Standard/Advanced)
Select “Energy Save” setting.
(Sound mode)
Select a sound multiplex mode.
(Mute)
TV sound on/off.
10
+/- (Volume)
Increase/decrease TV volume.
P/
Select the TV channel.
(INPUT SOURCE)
Select an input source.
PC
Directly select EXT 4.
MENU
“MENU” screen on/off.
RETURN
Return to the previous “MENU”
screen.
Buttons for useful operations
(Teletext)
ATV: Display analogue teletext.
DTV: Select MHEG-5 and teletext
for DTV.
(Reveal hidden Teletext)
(Subtitle)
Switch subtitle languages on/off.
(Freeze/Hold)
Press to freeze a moving image
on the screen.
Teletext: Stop updating teletext
pages automatically or release
theholdmode.
(Subpage)
(Top/Bottom/Full)
Set the area of magnification in
teletext mode.
11
12
13
14
15
16
17

LC-32DH57E-BK/RU-BK/S-BK
1 – 4
Attaching the stand unit
Before attaching (or detaching) the stand, unplug the AC cord from the AC INPUT terminal.
Before performing work, spread cushioning over the surface on which you will be laying the TV. This will prevent it
from being damaged.
CAUTION
Attach the stand in the correct direction.
Be sure to follow the instructions. Incorrect installation of the stand may result in the TV falling over.
Confirm that there are four screws with the
stand unit.
Place the stand unit onto the supporting
post on the bottom of the TV ( ).
1
2
Insert and tighten the four screws on the
bottom of the stand unit as shown ( ).
NOTE
To detach the stand unit, perform the steps in reverse order.
A screw driver is not supplied with this product.
3
•
•
•
•
•
•
Inserting the batteries
Before using the TV for the first time, insert two supplied “AA” size zinc-carbon batteries. When the batteries become
depleted and the remote control unit fails to operate, replace the batteries with new “AA” size batteries.
Open the battery cover.
Insert two supplied “AA” size batteries.
Place batteries with their terminals corresponding to the (+)
and (-) indications in the battery compartment.
Close the battery cover.
1
2
•
3
CAUTION
Improper use of batteries can result in chemical leakage or explosion. Be sure to follow the instructions below.
Do not mix batteries of different types. Different types of batteries have different characteristics.
Do not mix old and new batteries. Mixing old and new batteries can shorten the life of new batteries or cause chemical leakage in old
batteries.
Remove batteries as soon as they have worn out. Chemicals that leak from batteries can cause a rash. If you find any chemical leakage,
wipe thoroughly with a cloth.
The batteries supplied with this product may have a shorter life expectancy due to storage conditions.
If you will not be using the remote control unit for an extended period of time, remove the batteries from it.
Using the remote control unit
Use the remote control unit by pointing it towards the remote control sensor. Objects between the remote control unit
and sensor may prevent proper operation.
30° 30°
5m5m
Remote control sensor
Cautions regarding the remote control unit
Do not expose the remote control unit to shock. In addition, do not expose the remote
control unit to liquids, and do not place in an area with high humidity.
Do not install or place the remote control unit under direct sunlight. The heat may cause
deformation of the unit.
The remote control unit may not work properly if the remote control sensor of the TV is
under direct sunlight or strong lighting. In such cases, change the angle of the lighting or
the TV, or operate the remote control unit closer to the remote control sensor.
•
•
•
•
•
•
•
•

LC-32DH57E-BK/RU-BK/S-BK
1 – 5
Troubleshooting
Problem Possible Solution
No power.•Check if you pressed on the remote control unit. If the indicator on the TV lights up red, press .
Is the AC cord disconnected?
Check if you pressed on the TV.
•
•
•
The TV cannot be operated.•
External influences such as lightning, static electricity, etc., may cause improper operation. In this case, operate
the TV after first turning off the power, or unplugging the AC cord and re-plugging it in after one or two minutes.
•
Remote control unit does not operate.•Are batteries inserted with polarity (+, -) aligned?
Are batteries worn out? (Replace with new batteries.)
Are you using it under strong or fluorescent lighting?
Is a fluorescent light illuminating to the remote control sensor?
•
•
•
•
Picture is cut off.• Is the image position correct?
Are screen mode adjustments (WIDE MODE) such as picture size made correctly?
•
•
Strange colour, light colour, or dark colour,
or colour misalignment.
• Adjust the picture tone.
Is the room too bright? The picture may look dark in a room that is too bright.
Check the “Colour System” setting.
•
•
•
Power is suddenly turned off.• The TV’s internal temperature has increased. Remove any objects blocking the vent or clean.
Is sleep timer set? Set to “Off” by pressing SLEEP on the remote control unit.
Is “No Signal Off” or “No Operation Off” activated?
•
•
•
No picture.•Are connections to external equipment correct?
Is the correct input source selected?
Is a non-compatible signal being input?
Is the picture adjustment correct?
Is the antenna connected properly?
Is “On” selected in “Audio Only”?
•
•
•
•
•
•
No sound.• Is the volume too low?
Make sure that headphones are not connected.
Check if you pressed on the remote control unit.
Is the proper item selected in the “PC Audio Select” menu when connecting devices to the HDMI 2 terminal or
the EXT 4 terminal?
•
•
•
•
The TV sometimes makes a cracking
sound.
•
This is not a malfunction. This happens when the cabinet slightly expands and contracts according to changes
in temperature. This does not affect the TV’s performance.
•
Cautions regarding use in high and low temperature environments
When the TV is used in a low temperature space (e.g., room, office), the picture may leave trails or appear slightly delayed. This is not
a malfunction, and the TV will recover when the temperature returns to normal.
Do not leave the TV in a hot or cold location. Also, do not leave the TV in a location exposed to direct sunlight or near a heater, as this
may cause the cabinet to deform and the LCD panel to malfunction.
Storage temperature: + 5 °C to + 35 °C.
•
•
Information on the software license for this product
Software composition
The software included in this product is comprised of various software components whose individual copyrights are held by SHARP or by
third parties.
Software developed by SHARP and open source software
The copyrights for the software components and various relevant documents included with this product that were developed or written
by SHARP are owned by SHARP and are protected by the Copyright Act, international treaties, and other relevant laws. This product also
makes use of freely distributed software and software components whose copyrights are held by third parties. These include software
components covered by a BSD-like License or other license agreement.
We are unable to answer any questions about the source code for the open source software. The source code for the software
components whose copyrights are held by SHARP is not distributed.
Acknowledgements
The following open source software components are included in this product:
• Freetype • unicode • Teletext font • libpng • zlib

LC-32DH57E-BK/RU-BK/S-BK
1 – 6
[3] DIMENSIONS
791.0
791,0
390.0
390,0
200.0
200,0
235.0
235,0
66.2
66,2
123.5
123,5
200.0 200,0
47.0 47,0
699.2
699,2
528.0 528,0 575.0 575,0
333.5 333,5
393.8 393,8
82.0 82,0
Unit: mm

LC-32DH57E-BK/RU-BK/S-BK
2 – 1
LC-32DH57E-BK Service Manual
CHAPTER 2. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS
1. Removing of Rear Cabinet Ass’y.
1. Remove the 1 lock screw , 3 lock screws , 9 lock screws and detach the Rear Cabinet Ass’y.
123
2
3
1
Rear Cabinet Ass'y

LC-32DH57E-BK/RU-BK/S-BK
2 – 2
2. Removing of Connectors, Speakers, Stand Angle Ass’y and Stand Ass’y.
1. Remove all the connectors from all the PWBs.
2. Remove the 2 lock screws and detach the Speaker-L and Speaker-R.
3. Remove the 2 lock screws , 4 lock screws and detach the Stand Angle Ass’y.
4. Remove the 4 lock screws and detach the Stand Ass’y.
1
23
4
Speaker-R 1
3
2
4
Speaker-L
Stand Ass'y
Stand Angle Ass'y
1
[SP] [SP]

LC-32DH57E-BK/RU-BK/S-BK
2 – 3
3. Removing of Main PWB Shield and AV Cover Ass’y.
1. Remove all the connectors from all the PWBs.
2. Remove the 4 lock screw , 2 lock screws , 1 lock screw , 6 lock screws and detach the Main PWB Shield.
3. Remove the 1 lock screw and detach the AV Cover Ass’y.
123
4
5
1
2
34
5
Main PWB Shield
Earth Plate
AV Cover Ass'y
[PD/LB]
Main PWB
[RA/KM]
[SP]
[LW]
[LP]
[LB]
[PD]

LC-32DH57E-BK/RU-BK/S-BK
2 – 4
4. Removing of LED Unit, MAIN Unit, POWER Unit, INVERTER Unit, AC Inlet Angle, Control Button and KEY
Unit.
1. Remove all the connectors from all the PWBs.
2. Remove the 1 lock screw and detach the LED Unit.
3. Remove the 2 lock screws and detach the MAIN Unit.
4. Remove the 4 lock screws and detach the POWER Unit.
5. Remove the 3 lock screws and detach the INVERTER Unit.
6. Remove the 2 lock screw and detach the AC Inlet Angle.
7. Remove the Control Button.
8. Remove the KEY Unit.
1
2
3
4
5
3
4
5
1
POWER Unit
AC Inlet Angle
INVERTER Unit
MAIN Unit
LED Unit
[BtoB][BtoB]
2
Control Button
[KM]
[RA]
KEY Unit

LC-32DH57E-BK/RU-BK/S-BK
2 – 5
5. Removing of 32” LCD Panel Module.
1. Remove the 4 lock screws and detach the 32” LCD Panel Module from Front Cabinet.
1
Front Cabinet Ass'y
32" LCD Panel Module
11

LC-32DH57E-BK/RU-BK/S-BK
3 – 1
LC-32DH57E-BK Service Manual
CHAPTER 3. ADJUSTMENT PROCEDURE
[1] ADJUSTMENT PROCEDURE
1. Adjustment method after PWB and/or IC replacement due to repair
The unit is set to the optimum at the time of shipment from the factory. If any value should become improper or any adjustment is necessary due to
the part replacement, make an adjustment according to the following procedure.
1. Procure the following units in order to replace the main unit, E2PROM (IC8455).
NOTE: [Caution when replacing ICs in the main unit (IC501)]
The above ICs are EEPROMs storing the EDID data of PC data.
Before replacing the relevant part, procure the following parts in which the data have been rewritten.
2. Entering and exiting the adjustment process mode
1. Press the “MAIN POWER” key on the set of running TV set to force power off.
(Or, unplug the AC power cord of running TV set to force power off.)
2. While holding down the “ (-)” and “INPUT” keys on the set at once, press the “MAIN POWER” key on the set to turn on the power.
The letter “K” appears on the screen.
3. Next, hold down the “ (-)” and “P ( )” keys on the set at once.
Multiple lines of orange characters appearing on the screen indicate that the set is now in the adjustment process mode.
If you fail to enter the adjustment process mode (the display is the same as normal start up), retry the procedure.
4. To exit the adjustment process mode after the adjustment is done, press the MAIN POWER key and turn off a power supply. or unplug the AC
power cord to force power off.
(When the power is turned off with the remote controller, once unplug the AC power cord and wait for 10 seconds before plug it in again.)
3. Remote controller key operation in adjustment process mode.
1. key operation
Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.
MAIN UNIT: DUNTKF111FM08
IC501 RH-iXC206WJQZS EDID (PC) ANALOG-RGB
CAUTION: Use due care in handling the information described here lest the users should know how to enter the adjustment process mode.
If the settings are tampered with in this mode, unrecoverable system damage may result.
Remote controller key Main unit key Remote controller key Main unit key Function
P(/) P(/) Moving an item (line) by one (UP/DOWN)
(+/-) (+/-) Changing a selected item setting (+1/-1)
Cursor ( / ) — Turning a page (PREVIOUS/NEXT)
Cursor ( / ) — Changing a selected line setting (+10/-10)
Input button Input button Input source switching (toggle switching)
(TV→EXT1→EXT2→EXT3→EXT4→HDMI1→HDMI2→HDMI3→EXT8)
OK — Executing a function

LC-32DH57E-BK/RU-BK/S-BK
3 – 2
4. Description of display
No. Description Display specification
(1) Current page/total pages 2char/2char Decimal Number mark.
(2) Currentry selected input TV→EXT1→EXT2→EXT3→EXT4→HDMI1→HDMI2→HDMI3→EXT8
(3) Inch setting and destination display 32
(4) Item name Max. 30 char
(5) Parameter table Max. 60 char (Preset value of each item)
(1) Current page / Total pages (2) Currentry selected input
(3) Inch setting and Model name display
PAGE 1/7 TV 32E_DH57E Adjustment process menu header
Main Version 1.14
Boot Version 20090429.1.12
T-CON Version 00 00 00 00 32 4C 32 B1
INCH SIZE xx
ERROR RESET NO [NO/YES]
STANDBY CAUSE 00 00 00 00 00
[1] 00H 00M
[2] 00H 00M
[3] 00H 00M
[4] 00H 00M
[5] 00H 00M
(4) Item name (5) Parameter

LC-32DH57E-BK/RU-BK/S-BK
3 – 3
5. Adjustment process mode menu
The character string in brackets [ ] will appear as a page title in the adjustment process menu header.
Page Line Item Description Remarks (adjustment detail, etc.)
1/7
1 Main Version 1.14 Main microprocessor version
2 Boot Version 20090429.1.12 Boot version of the main microprocessor
3 T-CON Version 00 00 00 00 32 4C 32 B1 T-CON microprocessor version
4 INCH SIZE 32 Initial Setting of panel size
5 ERROR RESET NO [NO/YES] Lamp error reset. (Select “YES” and press “OK” key.)
6 STANDBY CAUSE 00 00 00 00 00 Error standby cause. Total operating time before error.
1) 00H 00M (5 times histories)
2) 00H 00M
3) 00H 00M
4) 00H 00M
5) 00H 00M
2/7
1 INDUSTRY INIT [NO/YES(E)/YES(I)/YES(F)/YES(R) Initialization to factory settings execution.
2 PUBLIC MODE OFF [OFF/ON] ON/OFF setting of hotel mode
3 I2C DATA 000000000000 Write and read of data in I2C BUS control IC.
4 I2C STATE WAIT [STANDBY/WAIT] Execution of write and read of I2C DATA
3/7
1 INSPECT USB TERM ENTER Reading inspection of USB memory terminal
2 HDMI CEC TEST ENTER HDMI CEC test
4/7
1 VIDEO ADJ ENTER VIDEO level adjustment execution
2 CHANNEL E-9
3 GAIN 31 Gain adjustment
4 ADJ RESET NO [NO/YES] Reset of adjustment
5/7
1 COM-ADJ ENTER COMPONENT level adjustment execution
2 Y OFF SET 70 Y CUTOFF adjustment value
3 PB OFF SET 128 PB CUTOFF adjustment value
4 PR OFF SET 128 PR CUTOFF adjustment value
5 Y GAIN 140 Y GAIN adjustment value
6 PB GAIN 140 PB GAIN adjustment value
7 PR GAIN 140 PR GAIN adjustment value
8 ADJ RESET NO [NO/YES] Reset of adjustment
6/7
1 RGB-ADJ ENTER SCART RGB level adjustment execution
2 R OFF SET 128 R OFF SET adjustment value
3 G OFF SET 128 G OFF SET adjustment value
4 B OFF SET 128 B OFF SET adjustment value
5 R GAIN 80 R DRIVE adjustment value
6 G GAIN 80 G DRIVE adjustment value
7 B GAIN 80 B DRIVE adjustment value
8 ADJ RESET NO [NO/YES] Reset of adjustment
7/7
1 COM BIAS 67 Common Bias auto adjustment execution
2 LCD TEST PATTERN 0 Pattern with built-in LCD controller display
3 WB Point A 500 W/B adjustment, gradation Point A input setting
4 Point B 3500 W/B adjustment, gradation Point B input setting
5 Point A ADJ R 520 W/B adjustment, gradation Point A R_adjustment value
6 ADJ G 500 W/B adjustment, gradation Point A G_adjustment value
7 ADJ B 380 W/B adjustment, gradation Point A B_adjustment value
8 Point B ADJ R 3500 W/B adjustment, gradation Point B R_adjustment value
9 ADJ G 3500 W/B adjustment, gradation Point B G_adjustment value
10 ADJ B 3160 W/B adjustment, gradation Point B B_adjustment value
11 WB WRITE NO [NO/YES] W/B writing of adjustment values
12 WB RESET NO [NO/YES] Reset of W/B adjustment value

LC-32DH57E-BK/RU-BK/S-BK
3 – 4
6. Special features
1. STANDBY CAUSE (Page 1/7)
Display of a cause (code) of the last standby.
The cause of the last standby is recorded in EEPROM whenever possible.
Checking this code will be useful in finding a problem when you repair the troubled set.
7. ROM Writing (HDMI_EDID)
1. EDID writing
1) Get ready the PC with COM port (RS-232C) running on Windows 95/98/ME/2000/XP operating system, as well as the RS-232C cross cable.
2) Start the set with the set connected with the personal computer with the RS232C cross cable.
3) Start the terminal software. (The freeware readily available on the Internet will do.)
4) Make the following settings.
5) Input following commands to terminal software.
6) It usually returns to a state by AC-OFF/ON.
Disconnect and connect AC cable, then TV wakes up with normal mode.
2. Software version
*1 Please refer to the change report document for the latest version (Issued it to SEES).
Baud rate : 9600 bps
Data LENGTH : 8bit
Parity bit : none
Stop bit : 1 bit
Flow control : none
“KRSW0001”
PC replies “ERR” (you should ignore this replay)
“KKT10037”
PC replies “OK”
“WRED0000”
PC replies “OK” ... At that time, EDID writing finish with succeess.
(1) Mainmicon Software Ver. 1.14 *1
(2) Boot version of mainmicon Software Ver. 1.12 *1
(3) T-CON Monitor micon Software Ver. 1.0 *1

LC-32DH57E-BK/RU-BK/S-BK
3 – 5
8. Adjustment procedure
1. Inch Setting
2. COMB-BIAS Adjustment
Adjustment point Adjustment conditions Adjustment procedure
1 Inch Setting Adjustment process mode
Adjustment process
“INCH SIZE” menu page 1/7
1) Inch Setting with adjustment process mode.
2) Enter the adjustment process mode, refering to the 2nd item.
3) By using P ( / ) key of R/C, Move the cursor to “INCH SIZE” on page 1/
7.
4) Select inch size 32 with the Volume (+)/(-) key of remote control.
5) Press the “OK” key of remote control.
6) After a while, If “*** OK ***” is displayed, the setting is completed.
Adjustment point Adjustment conditions Adjustment procedure
1 COM-BIAS Adjustment A visual check
Adjustment process
“COM BIAS” menu page 7/7
1) COM-BIAS Adjustment with adjustment process mode.
2) Enter to the adjustment process mode, refering to the 2nd item.
3) By using / key and P ( / ) key of R/C, Move the cursor to “COM-
BIAS” on page 7/7.
4) Press the “OK” key. then, you can check that the pattern for adjustment is
displayed.
5) Adjust so that the flicker for the central part of a screen becomes the mini-
mum using the volume (+)/(-) key of R/C.
6) In order to exit from this process, press the “OK” key of remote control again.