Sharp LC-32SH25E Schematic
LC-32SH25E
SERVICE MANUAL
No. SX8T4LC32SH25
LCD COLOUR TELEVISION
MODELS
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRE-
CAUTION ................................................. ... ........2
Precautions for using lead-free solder ......….......3
CHAPTER 1. OPERATION MANUAL
[1] SPECIFICATIONS ..................................................4
[2] OPERATION MANUAL ...........................................5
[3] DIMENSIONS .......................................................10
CHAPTER 2. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS ..........................11
CHAPTER 3. ADJUSTMENT PROCEDURE
[1] ADJUSTMENT PROCEDURE .............................16
[2] SERVICE MODE ..................................................21
[3]
SOFTWARE UPGRADE PROCEDURE...............22
CHAPTER 4. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE..............................26
CHAPTER 5. MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS.................................39
CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM
[1] VIDEO & AUDIO BLOCK DIAGRAM ...................59
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.
CONTENTS
[2] POWER MANAGEMENT BLOCK DIAGRAM ......60
[3] I2C and RS232 BLOCK DIAGRAM .......................61
[4] WIRING DIAGRAM ...............................................62
CHAPTER 7. PRINTED WIRING BOARD
[1] MAIN UNIT PRINTED WIRING BOARD ...............63
[2] POWER UNIT PRINTED WIRING BOARD ..........65
[3] KEY UNIT PRINTED WIRING BOARD .................67
[4] IR UNIT PRINTED WIRING BOARD ....................68
CHAPTER 8. SCHEMATIC DIAGRAM
[1] MAIN SCHEMATIC DIAGRAM ............................69
[2] POWER SCHEMATIC DIAGRAM .......................83
[3] KEY SCHEMATIC DIAGRAM .............................84
[4] IR SCHEMATIC DIAGRAM .................................85
CHAPTER 9. Parts Guide
[1] SPARE PARTS LIST.............................................86
[2] CABINET PARTS ................................................108
[3] SUPPLIED ACCESSOORIES..............................110
[4] PACKING PARTS................................................111
LC-32SH25E
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
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LC-32SH25E
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRECAUTION
■ Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:
■ WARNING
1. For continued safety, no modification of any circuit should be
attempted.
2. Disconnect AC power before servicing.
CAUTION:
FOR CONTINUED PROTECTION AGAINST A
RISK OF FIRE REPLACE ONLY WITH SAME
TYPE FUSE.
42" F901 (T6.3AH/250V)
26"/32" F901 (T5AH/250V)
■
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 paralleled
by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or
electrical ground connected to an earth ground.
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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.
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
• Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity 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.
DVM
AC SCALE
1.5k ohm
10W
0.15 µF
TEST PROBE
TO EXPOSED
METAL PARTS
CONNECT TO KNOWN
EARTH GROUND
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.
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LC-32SH25E
Precautions for using lead-free solder
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
damage 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.
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LC-32SH25E
CHAPTER 1. OPERATION MANUAL
[1] SPECIFICATIONS
Specification
Item
LCD panel 32” diagonal
Number of dots
Video Colour System
TV-Standard
TV Function
Backlight life 60,000 hours (at Backlight Standard position)
Viewing angles H : 176° V : 176°
Audio amplifier 5W X 2
Speaker (100 mm X 30 mm) X 2
Rear
Side
OSD language
Power Requirement
Power Consumption
Receiving
Channel
TV-Tuning System Auto Preset 999 ch, Auto Label, Auto Sort
STEREO/BILINGUAL NICAM/A2
Antenna
RS-232C D-Sub 3 pin male connector
SCART 1 SCART (AV input, Y/C input, RGB input, TV output-analogue only)
SCART 2 SCART (AV input, Y/C input, monitor output (analogue source - RF, SCART 1, SIDE AV) )
PC IN VGA pin (AV input), Ø 3.5mm jack (Audio output)
Component Y/Pb(Cb)/Pr(Cr), RCA pin (L/R)
SPDIF Digital audio output
AUDIO OUT RCA pin (L/R)
HDMI 1
HDMI 2
C. I. (Common Interface) EN50221, R206001
Headphones Ø 3.5mm jack (Audio output)
AV IN RCA pin (AV input) , RCA pin (L/R), S-VIDEO (Y/C input)
USB
HDMI 3
Analogue
Digital
VHF/UHF ATV : IRA-E69, DVB-T : E5-E69
CATV S-band, S1–S41ch
32” LCD Colour TV
Model: LC-32SH25E
3,147,264 dots
(1366 X 768 X 3 dots)
PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
CCIR (B/G, I, D/K, L/L’)
DVB-T (2K/8K OFDM)
UHF/VHF 75 Ω
For service use only
Bulgarian, Croatian, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian,
Italian, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovene, Spanish,
Swedish, Turkish
AC 220–240 V, 50 Hz
150 W (Standby<1W)
(Method IEC60107)
,
Weight
Operating temperature 0°C to + 40°C
• As a part of policy of continuous improvement, SHARP reserves the righ t 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.
10.7 kg (Without stand),
12.5 kg (With stand)
4
[2] OPERATION MANUAL
Remote control unit
POWER
Press to turn the LCD TV on or enter
standby mode.
VIDEO
Press this key you could select YPbPr, Side
AV, HDMI 1, HDMI 2, HDMI 3.
SCART
Press this key you could select
SCART 1, SCART 2.
PC
Press to direct to the PC mode.
TV
Press to direct to the TV mode.
0-9 DIGIT BUTTONS
To select a TV channel directly.
EPG
Press this button to display electronic
program guide in TV mode.
PRE PR
To display the previous selected TV channel.
(INPUT SOURCE)
Select an input source.
ASPECT
Change the aspect ratio; please refer to
Picture format section.
DUAL
Select MONO, STEREO, DUAL 1 and DUAL
2 for ATV channel. Select Audio language for
DTV channel.
SLEEP
Press to turn the LCD TV off within an
amount of time. (5-180 minutes.)
PICTURE
Press to set the LCD TV to a predefined
picture setting.
User / Cinema / Sport / Vivid / Hi-Bright
PR LIST
Press to display a list of channels. Then
press Red button to select the Digital or
Analogue channel list.
SOUND
Press to set the LCD TV to a predefined
sound setting.
Off / Rock / Pop / Live / Dance / Techno /
Classic / Soft
(+/-)
Press to adjust the volume.
P(∧/
)
∨
Press to select the channel.
LC-32SH25E
MUTE
Press to toggle audio on and off.
You can also press (+/-) VOL to
restore the previous volume level.
DISPLAY
Press to display the current signal
status, including input source/
channel audio mode.
MENU
Press to activate the LCD TV OSD.
Press again to exit the LCD TV
OSD.
EXIT
Press to exit LCD TV OSD.
OK
Press to activate a setting.
＜＞
∧∨
Press ∧∨＜＞
to navigate and confirm your selection.
R/G/Y/B (Colour Button)
Press buttons to select the pictures with
various colours of text. Different channels
display different functions.•
TELETEXT
Press this button to activate Teletext. Press
again to turn off Teletext.
MIX
Press this button to activate Teletext with TV.
SIZE
Press this button to change the font size: Full
screen, Top half and Bottom half.
SUBPAGE
To select the subpage when the current page
contains subpage(s).
INDEX
Press this button to return to page 100 or the
index page; and then press 0 to 9. The teletext
page will be numbered and added to the page
you select or the secondary item.
SUBTITLE
For DTV, press it to select subtitle setting.
off / on / on during mute
For ATV, please activate Teletext to select
subtitle page.
HOLD
Press this button to stop the scrolling of pages.
The text decoder stops receiving data.
REVEAL
Reveal hidden information such as answers to
a quiz.
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LC-32SH25E
TV (Front view)
TV (Rear view)
(+/-)
Volume buttons
P
( )
/
Programme [channel] buttons
MENU
button
(INPUT SOURCE) bu tton
(Power) button
1
1 Power connector
2 SERVICE socket
3 HDMI 1
4 HDMI 2
5 PC IN (VGA/AUDIO)
6 Component Video and L/R Audio input
7 SPDIF Output (Digital audio out)
8 AV L/R Audio Output
9 SCART 1 (CVBS Tuner out)
10 SCART 2 (CVBS Monitor out)
11 Tuner Input
12 COMMON INTERFACE slot
13 Earphone Output
14 Composite ( AV IN, AV/LR)
15 S-Video
16 SERVICE socket(For LC-32SH25E)
17 HDMI 3
(Standby/On) indicator
P
MENU
2
3
4
SERVICE
HDMI1
HDMI2
5
6
YPbPr
LRSPDIF OUT
8
L
PC IN
VGA
COMPONENT
R
6
AUDIO
7
AUDIO OU T
Remote control sensor
9
10
SCART1 SCART2
12
13
14
15
16
17
11
Preparation
Mount the TV Stand
1. Put the TV face down on a safe surface that
is covered by a soft and smooth cloth.
2. Adjust the TV stand to the base column.
3. Fasten 4 screws.
Wall mounting
LC-32SH25E
3
TV screen size
( inches)
1. Put the TV face down on a safe surface that is
covered by a soft and smooth cloth.
2. Unscrew the 4 bolts that fasten the base
column to the TV by using a cross-head
screwdriver. (not supplide)
3. Detach the stand from the bottom of the TV.
32” 200 x 200 mm Metric 6 x 10 mm
VESA-compatible wall bracket
(millimeters) (W x H)
Screw type
3
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LC-32SH25E
preparation
Installation of batteries
1. insert two AAA batteries into Remote control.
Make sure (+) and (-) are facing the proper
direction.
2. Replace the cover.
NOTE
• If the remote control will not to be used for a long
time, remove the batteries to avoid remote control damage.
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.
Note on disposing batteries:
The batteries provided contain no harmful materials such as cadmium, lead or mercury.
Regulations concerning used batteries stipulate that batteries may no longer be thrown out with the household
Rubbish. Deposit any used batteries free of charge into the designated collection containers set up at commercial
Businesses.
Using the remote control unit Bundling the cables
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.
5m
30
Remote control sensor
30
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LC-32SH25E
Appendix
troubleshooting
problem possible Solution
No picture 1. Connect power cord correctly.
2. Turn on power.
3. Connect signal cable correctly.
4. Press any button on the LCD TV.
Abnormal colours Connect signal cable correctly.
Twisted picture 1. Connect signal cable correctly.
2. Please use compatible signal.
Picture too dark Adjust brightness and contrast.
Audio only, no images 1. Please check if input signal is connected correctly.
Picture only, no audio 1. Connect signal cable correctly.
Cannot use remote control 1. Please change battery.
Cannot receive sufficient channels
through antenna
No colours Please adjust the colour setup
Blinking picture accompanied by ghost
image
Broken lines or segments
Certain TV channels are blocked (Hope to
acquire some channels)
Overlapping images or ghost images Please use multi-directional outdoor antenna. (If your TV is subject to the influence of nearby mountains or
Cannot use a function If the item you choose turns gray, that item cannot be selected.
Cannot receive programs Please use the Update scan method to add the channels not included in memory.
1. When a lamp in LCD panel is broken and the
protector circuit in inverter operates and we
tune on the this set, LED keep red? or Green?
2. Service man only change the lamp in LCD
panel?
Cautions regarding use in high and low temperature environments
• When the unit 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 unit will recover when the temperature returns to normal.
• Do not leave the unit in a hot or cold location. Also, do not leave the unit 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 GNU
General Public License (hereafter GPL), a GNU Lesser General Public License (hereafter LGPL) or other license Agreement.
obtaining source code
Some of the open source software licensors require the distributor to provide the source code with the executable software components. GPL and
LGPL include similar requirements. For information on obtaining the source code for the open source software and for obtaining the GPL, LGPL, and
other license agreement information, visit the following website:
2. TV-RF signal must not be lower than 50dB.
2. Adjust volume to proper level.
3. Connect audio signal cable correctly.
4. TV-RF signal must not be lower than 50dB.
2. Turn off power for 10 seconds; and then restart power.
Please use the Channel scan function to increase the number of channels not included in memory.
1. Check the connection of antenna/signal cable.
2. Check if channel is in play mode.
3. Press signal source and change input mode.
Adjust antenna.
Keep the TV away from noise sources, such as automobiles, neon lights, and hair dryers.
Please use the Update scan method to add the channels not included in memory
buildings).
1. If the lamp(s) is(are) broken, panel inverter will not kick on the lamps, so TV set phenomena will be "no picture
on display."
But the TV system is still working, that is the RC can also control LED.
When AC power on, the LED will keep last status and when use RC DC power on, the LED will keep green light.
2. The failed panel should be sent back to Panel maker (CMO) via RMA process.
Panel maker (CMO) will not rework the lamps at customer's side since the repaired panel should be checked
through regular inspection flow to secure the quality.
http://www.sharp-eu.com/gpl/
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:
•linuxkernel•modutils•glibc•zlib•libpng
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LC-32SH25E
[3] DIMENSIONS
10
CHAPTER 2. REMOVING OF MAJOR PARTS
[2] REMOVING OF MAJOR PARTS(LC-32SH25)
1. Assy/Panel Removal
Notes: Please put your machine on soft material to avoid to scrape panel when you disassemble it.
Front view
Fig.1
Back view
LC-32SH25E
Fig.2
Step 1. Remove the Base Assy.
1. Remove the base as Fig.3.
Remove the 4 screws as Fig.3 and pull out the base as Fig.4
Fig.3
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LC-32SH25E
Fig.4
2. Remove the 4 screws. Detach the BASE STAND as Fig.5.
Step 2. Remove the REAR COVER Assy.
1. Remove the 11 screws. Detach the REAR COVER as Fig.5.
Fig.5
Step 3. Remove the Main, Power, IR, Key board and the Speakers.
Fig.6
1. Remove the 6 screws and disconnect 4 cables. Detach the Main board as Fig.7 and Fig.8.
12
Fig.7
LC-32SH25E
Fig.8
2. Remove the 5 screws and disconnect 2 cables. Detach the Power board as Fig.9.
Fig.9
3. Remove the 1 screw and disconnect 1 cable. Detach the IR board as Fig.10.
Fig.10
4. Disconnect 1 cable. Detach the Key board as Fig.11.
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LC-32SH25E
Fig.11
5. Remove the 4 screws and disconnect 4 cables. Detach the Speakers as Fig.12 and Fig.13.
Fig.12 Fig.13
Step 4. Remove the Metal Frame.
1. Remove the 6 screws and disconnect 2 cables. Detach the Metal Frame as Fig.14.
Fig.14
Step 5. Remove the Bezel Assy.
1. Remove the Bezel Assy as Fig.15
Fig.15
2. The below picture is panel as Fig.16.
14
Fig.16
2. Set Re-assembly
To re-assemble the whole set, execute all processes in reverse order.
Notes:
a. While re-assembling, make sure that all cables are placed and connected in their original position.
b. Pay special attention not to damage the EMC foams at the SSB shielding. Check that EMC foams are put
correctly on their places.
LC-32SH25E
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LC-32SH25E
CHAPTER 3. ADJUSTMENT PROCEDURE
PROCEDURE
[1] ADJUSTMENT PROCEDURE
1. OSD Menu
OSD tree - As following
• TV
Digital Europe OSD tree-TV Remark
OSD Layer
1 2 3 4 5 6
Picture
Contrast slider
Brightness slider
Color slider
Sharpness slider
Tint
Color temperature
Cool
Picture format Automatic
Noise Reduction Off
On
Sound
Virtual surround Off
On
Dual I-II Dual I
Dual II
Mono/Stereo Mono
Stereo
Auto volume leveling Off
On
Smart Picture
Settings
Sound mode
Volume-visually
impaired
Audio language
User
Cinema
Sport
Vivid
Hi-bright
slider
Normal
Warm
Super zoom
4:3
Movie expand 14:9
Movie expand 16:9
Wide screen
Subtitle zoom
Bass slider
Treble slider
Balance slider
Off
Rock
Pop
Live
Dance
Techno
Classic
Soft
slider
Broadcsted list of audio languages
16
Features Timer
Stop time Timer Off
On
Sleeptimer slider
Auto lock Lock program
Change code
Clear all Start now
Parental rating None
Age 4~18
X-rated(Spain)
Subtitle Off
On
On during mute
Subtitle language Broadcsted list of audio languages
Common interface
Installation
Preferred audio language Basque
Bulgarian
Catalan
Croatian
Czech
Danish
Dutch
English
Finnish
Language
Clock
Start time
Menu language Български
Česky
Dansk
Deutsch
English
Hrvatski
Italiano
magyar
Nederlands
Norsk
Polski
Română
Svenska
Türkçe
Time zone
Time
Timer Off
On
(Channel
number…)
Please enter your
current PIN.
Ελληνικά
Español
Français
Português
Русский
Slovenský
Slovenščina
Srpski
Suomi
GMT +x:xx
GMT -x:xx
As broadcaster
Auto
synchronization
Date
Time
On
Off
20xx/xx/xx
xx:xx:xx
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(When CAM
inserted)
LC-32SH25E
17
LC-32SH25E
French
Gaelic
Galician
German
Greek
Hungarian
Italian
Norwegian
Polish
Portuguese
Romanian
Russian
Serbian
Slovak
Slovenian
Spanish
Swedish
Turkish
Welsh
Preferred subtitle language Basque
Bulgarian
Catalan
Croatian
Czech
Danish
Dutch
English
Finnish
French
Gaelic
Galician
German
Greek
Hungarian
Italian
Norwegian
Polish
Portuguese
Romanian
Russian
Serbian
Slovak
Slovenian
Spanish
Swedish
Turkish
Welsh
Hearing impaired Off
On
Audio description Off
On
Country France
Channel installation Automatic installation Start now
Installation update Start now
Digital: Test reception 000.00 MHz Start Network name:
Status:
scanning…
Digital channels
found:
Analoguel
channels found:
Status:
scanning…
Signal
quality:Good/Poor
18
Signal strength:
Analog: Manual installation System West EU
East EU
UK
France
Search 000 MHz
Fine tune 000.00 MHz
Rearrange
Source labels
SCART 1 DVD
SCART 2 Blu-ray
PC HDD/DVDR
HDMI 1 HD rec.
HDMI 2 Game
HDMI 3 VCR
PC
Digital STB
HD dig STB
Other
Decoder (Channel numbers…)
Current software info
Factory reset Start now
YPbPr
Side AV No label
Store current
channel Store
Store as new
channel Store
(Channel
numbers…)
Rename,reshuffle
• PC
LC-32SH25E
Digital Europe OSD tree-PC Remark
OSD Layer
1 2 3 4 5
Picture Contrast slider
Brightness slider
Colour Temperature Normal
Warm
Cool
Picture format
Sound Incredible surround Off
On
Picture
adjustment
Factory
reset Start now
Auto adjust
Manual adjust
Clock
Horizontal
Vertical
4:3
Wide screen
Start
Phase slider
slider
slider
slider
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LC-32SH25E
2. Picture check
1) WHITE-D adjustment
General set-up :
Equipment Requirements: Minolta CA-210 or Equivalent Color analyzer Chroma 2250 or equivalent PC signal generator
input requirements:
Input Signal Type : PC VGA signal
1280 X 1024/60Hz PC mode with ”5 white block” pattern. (see pattern-1)
Input Signal Strength : 0.7 Vp-p linear voltage.
Input Injection Point : PC D-SUB input
Pattern-1
Alignment method:
Initial Set-up:
1>. Select source as “PC”.
2>. Set Contrast = 50 (Sharp) and Brightness=50 (Sharp) , at normal menu mode.
3>. Apply “5 white block”(pattern-1) pattern b y VGA pattern generator.
4>. Enter factory mode menu: press MENU + Numeric keys “062596” + MENU key (FAC mode menu). Then select “Factory” item.
Alignment:
1>. At FAC mode menu, select AUTO_COLOR item. Then press “OK” key to adjust ADC_GAIN_R, ADC_GAIN_G, ADC_GAIN_B and ADC_OFFSET_R,
ADC_OFFSET_G, ADC_OFFSET_B. Then store those values to NVM.
2>. Apply Flat80 pattern (80% white pattern).
3>. Set color temperature to “NORMAL”.
4>. At FAC mode menu, adjust the CLR TEMP R
store those values to NVM
5>. Set color temperature to “COOL”.
6>. At FAC mode menu, adjust the CLR TEMP R
those values to NVM
7>. Set color temperature to “WARM”.
8>. At FAC mode menu, adjust the CLR TEMP R
those values to NVM
Color temperature Normal/Warm/Cool (x, y) co-ordinates specification:
Picture Mode x y
Normal (9000oK) 0.289±0.003 0.291±0.003
Cool (12000oK) 0.272±0.003 0.277±0.003
Warm (6500oK) 0.314±0.003 0.319±0.003
Table 5: Reading with Minolta CA-210.
Note:
1>. Use Minolta CA-210 for color coordinates and luminance check.
2>. Befor adjusting,all colour analyzers (CA-210) should be coordinates with a same reference TV set.
3>. Luminance > 400 cd/m
2
in the center of the screen when Brightness control at 100; Contrast control at 100 for Sharp 32” panels.
, CLR TEMP G, CLR TEMP B values to meet “NORMAL” color coordinates specification below. Then
, CLR TEMP G, CLR TEMP B values to meet “COOL” color coordinates specification below. Then store
, CLR TEMP G, CLR TEMP B values to meet “WARM” color coordinates specification below. Then store
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[2] SERVICE MODE
Enter factory mode menu: press MENU + Numeric keys “062596” + MENU key (FAC mode menu).Then select “Factory”
item.
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[3] SOFTWARE UPGRADE PROCEDURE
Environment Setup
Before you start to write the code, we suggest you setup the environment first. This chapter lists the setup requirements and guides you to setup and test
your development environment.
1.1 Connect to ISP Board to upgrade the software firmware.
Use USB port connecting PC & MT536x Board via ISP board(Code number: 9JR9900000099(715G537XL2)).
To P C U S B port
Example: PC Connected to system board service port ( From USB to RS232).
To system board
service port
1. Unzip USB2COM Driver.zip to C:\
PL-2303 Driver Installer.rar
I. PL-2303 Driver Installer.exe
II. Double click exe file to install driver
2. Use MTK_Tools to download .bin file. (Ex: SHARP_LC_32SH25E__Vxx.xx_image.bin)
3. Make sure the Type “MTK539X” && “USB Baud Rate 115200x8” && Load the correct “bin” file.
Detailed operation sequence listed as follows.
Load .bin file on the Linux system or on the local Windows file system(Ex: SHARP_LC_32SH25E__Vxx.xx_image.bin) & Set Bridge & Auto Set Flash
BaudRate.
mtktool_mt5391.rar
22
BaudRate.
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4. Set COM port resource that used by USB Port.
5. Set Baud rate 115200x8 & High speed item Enable. & MT539x.
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6. Push “Upgrade” button. (Waiting for “Finished!” message.)
Press “確定” button
7. Mainboard Power Off Æ On.
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1.2 Connect to TV USB port to upgrade the software firmware
Please follow the following step to upgrade the firmware.
1. Copy the software firmware (*.pkg) to USB Disk.
2. Modify the pkg’s filename to “upgrade.pkg”
3. Insert the USB Disk to TV USB port.
LC-32SH25E
4. TV AC power off -> AC power on
5. TV will upgrade by itself after detect the USB disk condition and the content of the pkg file.
Note: TV’s Green LED will flash during upgrade process
6. After finish upgrade process, TV will reboot by itself.
7. Remove USB disk from TV.
8. Check the software version is correct or not.
(Menu / setup / Current software info)
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A
p
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CHAPTER 4. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE
Power unit operation check.
↓
re the power cord and harness in the unit properly connected?
LINE_FILTER_UNIT: ↓ YES
Is F901 normal?
POWER_UNIT
Is BD901 (+320V) output? (Set the main power SW to OFF.)
* When power on/off switch is on ‧‧‧ About +400V
↓YES
↓YES
Is a voltage of +5V applied to pin (11,12) of connector (CN902)?
(Set the main power SW to OFF.)
↓YES
re +24V output as for the power on/off switch when it is on?
↓YES
Similarly, is +12V output as for the power on/off switch when it is
on?
NO
NO
NO
NO
NO
NO
Connect the power cord and harness properl y, and turn on the
ower.
LINE_FILTER_UNIT:
Isn't L901,L902,RV901,C903,C904,C901,C902, etc. out o
order? Moreover, whether the short-circuit with the
circumference circuit is checked.
POWER_UNIT:
BD901, RV902, IC951, etc. out of order?
Moreover, whether the short-circuit with the circumference circuit
is checked.
Does the PFC circuit operate normally?
(L906, Q901, D902, D903, IC901 and etc. And, the circuit around
the protection circuit etc. is checked.)
Does the switching circuit operate normally?
Check circuit around the primary side (T901, IC931, Q931,
ZD981, ZD930, D980, D981, ZD981, etc.), t he secondary side
(D935, L980, etc.), the AC_DET circuit (ZD982, IC932, IC982,
Q992, Q993, etc.), and the protection circuit.
Does the inverter circuit operate normally?
Check circuit around the primary side (T902,Q951,Q952,IC951,
D951,D952, etc.), the secondary side (D955, L971, ZD967,
IC952, IC953, etc.), the STANDBY circuit (Q988, etc.), and the
protection circuit.
Check +12V circuit of D956, L931, etc.
26
The sound is not emitted from the speaker though the picture has come out.
↓
No sound output in all modes?
TEREMINAL UNIT: ↓
Is the audio signal output of pin (H26) (AL0) and pin (H25) (AR0) of
IC U400 normal?
NO
↓YES
Is the audio signal output of pin (17) (PGA2OUTL) and pin (18)
(PGA2OUTR) of IC U605 normal?
NO
↓YES
Is audio signal input to pin (2)(L), pin (14)(R) of IC U600 (AMP)?
NO
↓YES
Is MUTE circuit [AMP_MUTE_LINE, POWERUP_LINE] normal?
NO
↓YES
Is the audio signal output of pin (3, 4) (L-ch) and pin (1, 2) (R-ch) of
CN600 (AOUDIO-CONNECTOR) normal?
NO
↓YES
Check Speaker Box (right and left) and wire harness.
No sound (during the reception of TV(ANALOG) broadcasting)
↓
Does not the sound go out though the picture has come out when UHF/VHF is received?
TEREMINAL UNIT: ↓
Is the SIF signal output from pin (11) of TUNER (TU200)?
NO
↓YES
Is the SIF signal sent to pin (AB25) and pin (AB26) of IC U400?
NO
↓YES
Refer to “No sound output in all modes”.
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Check IC U400 and its peripheral circuits.
Check IC U605 and its peripheral circuits.
Check the line between IC U605 and IC U600.
Check the AMP_MUTE_LINE and POWERUP_LINE. (Q600,
etc.)
Check IC U600 and its peripheral circuits.
Check the tuner and its peripheral circuits. Replace as required.
Check IC U400 its peripheral circuits.
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No sound (during the reception of TV (DIGITAL) broadcasting)
↓
Does not the sound go out though the picture has come out when DTV is received?
MAIN UNIT: ↓
Is the DIF signal output from pin (17) and pin (19) of TUNER
(TU200)?
NO
↓YES
Is the DIF signal sent to pin (R25) and pin (T25) of IC U400?
NO
↓YES
Refer to “No sound output in all modes”.
No sound from external input devices (1)
↓
Does not the sound of the audio signal input to SCART1 go out?
Does not the sound of the audio signal input to SCART2 go out?
TEREMINAL UNIT: ↓
Is the audio signal properly sent to pin (6) (SCT1_AUL_IN) and pin
(2) (SCT1_AUR_IN) of SCART1(CN500)?
Is the audio signal properly sent to pin (6) (SCT2_AUL_IN) and pin
(2) (SCT2_AUR_IN) of SCART2(CN501)?
NO
NO
↓YES
Is the audio signal properly sent to pin (44) (SC1_LIN) and pin ( 43)
(SC1_RIN) of IC U605?
Is the audio signal properly sent to pin (46) (SC2_LIN) and pin ( 45)
(SC2_RIN) of IC U605?
NO
NO
↓YES
Refer to “No sound output in all modes”.
No sound from external input devices (2)
↓
Does not the sound of the audio signal input to AV1(Component) go out?
MAIN UNIT: ↓
Is the audio signal properly sent to pin (2) (AV1_AudioLIN) and pin
(4)(AV1_AudioRIN) of CN553?
NO
↓YES
Is the audio signal properly sent to pin (50) (AV1_LIN) and pin (49)
(AV1_RIN) of IC U605?
NO
↓YES
Refer to “No sound output in all modes”.
Check the tuner and its peripheral circuits. Replace as required.
Check IC U400 its peripheral circuits.
Check the setting of an external input device that connects o
CN500.
Check the setting of an external input device that connects o
CN501.
Check the line between CN500 and IC U605.
Check the line between CN501 and IC U605.
Check the connection to CN553 and the external input device.
Check the line between CN553 and IC U605.
28
(
No sound from external input devices (3)
↓
Does not the sound of the audio signal input to AV3(Composite/Y/C) go out?
MAIN UNIT: ↓
Is the audio signal properly sent to pin (4) (AV3_AudioLIN) and pin
(6) (AV3_AudioRIN) of CN650?
↓YES
Is the audio signal properly sent to pin (52) (SIDE_LIN) and pin (51)
(SIDE_RIN) of IC U605?
↓YES
Refer to “No sound output in all modes”.
No sound from external input devices (4)
↓
Does not the sound of the audio signal input to VGA go out?
MAIN UNIT: ↓
Is the audio signal properly sent to pin (2) (VGA_AudioLI N) and pin
(3) (VGA_AudioRIN) of CN555?
↓YES
Is the audio signal properly sent to pin (48) (VGA_LIN) an d pin (47)
VGA_RIN) of IC U605?
↓YES
Refer to “No sound output in all modes”.
No sound from external input devices (5)
↓
Does not the sound of the audio signal input to HDMI1/2/3 go out?
↓
Is picture of the signal input from HDMI1/2/3 displayed?
↓YES
Refer to “No sound output in all modes”.
NO
NO
NO
NO
NO
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Check the connection to CN650 and the external input device.
Check the line between CN650 and IC U605.
Check the connection to CN555 and the external input device.
Check the line between CN555 and IC U605.
Refer to “Does not the picture of the HDMI signal input to
HDMI1/2/3 go out?”.
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The audio signal is not output (1)
↓
The audio signal of UHF/VHF is not output from SCART1.
TEREMINAL UNIT: ↓
Is audio signal output from IC U602 sent to pin (3)(SCT1_AULOUT) and pin(1)(SCT1_AUR-OUT) of SCART1(CN500)?
↓NO
Is audio signal output from IC U400 sent to pin (2)(LRCLK) and pin
(3)(DIN) and pin (4)(BCLK) and pin(13)(MCLK) of IC U602?
↓NO
Check IC U400 and its peripheral circuits.
The audio signal is not output (2)
↓
The audio signal of UHF/VHF/MONITOR is not output from SCART2.
TEREMINAL UNIT: ↓
Is audio signal output from IC U605 sent to
pin(3)(SCT2_AUL_OUT) and pin(1)(SCT2_AUR_OUT) of
↓NO
Is the audio signal output from IC U400 pin(K26) (AL2) and pin(J24)
(AR2) sent to pin(26)(INPUT1L) and pin(25)(INPUT1R) of IC U605?
↓NO
Check IC U400 and its peripheral circuits.
The audio signal is not output (3)
↓
No audio signal output from LINE_AUDIO_OUTPUT terminal.
TEREMINAL UNIT: ↓
Is audio signal output from IC U605 sent to pin(2)(L_OUT) and pin
(4)(R_OUT) of LINE_AUDIO_OUT connector(CN556)?
↓NO
Is the audio signal output from IC U400 pin(K26) (AL2) and pin(J24)
(AR2) sent to pin(26)(INPUT1L) and pin(25)(INPUT1R) of IC U605?
↓NO
Check IC U400 and its peripheral circuits.
YES
YES
YES
YES
YES
YES
Check the connection to SCART1 and external devices.
Check the line between IC U400 and IC U602.
Check the connection to SCART2 and external devices.
Check the line between IC U400 and IC U605.
Check the connection to LINE_AUDIO_OUT and external
devices.
Check the line between IC U400 and IC U605.
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