Sharp LC-19S7E, LC-26S7E, LC-32S7E Schematic
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
SERVICE MANUAL
No.
LCD COLOUR TELEVISION
LC-19S7E-BK
LC-26S7E-BK
MODELS LC-32S7E-BK
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 ..........................12
CHAPTER 3. ADJUSTMENT PROCEDURE
[1] ADJUSTMENT PROCEDURE ..............................20
[2] SERVICE MODE ...................................................26
[3]
SOFTWARE UPGRADE PROCEDURE...............27
CHAPTER 4. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE..............................28
CHAPTER 5. MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS.................................46
CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM
[1] BLOCK DIAGRAM ...............................................61
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 ......63
[4] WIRING DIAGRAM ...............................................65
CHAPTER 7. PRINTED WIRING BOARD
[1] MAIN UNIT PRINTED WIRING BOARD ................67
[2] POWER UNIT PRINTED WIRING BOARD ...........71
[3] KEY UNIT PRINTED WIRING BOARD .................75
[4] IR UNIT PRINTED WIRING BOARD .....................77
CHAPTER 8. SCHEMATIC DIAGRAM
[1] MAIN SCHEMATIC DIAGRAM .............................79
[2] POWER SCHEMATIC DIAGRAM ......................112
[3] KEY SCHEMATIC DIAGRAM .............................115
[4] IR SCHEMATIC DIAGRAM .................................117
CHAPTER 9. Parts Guide
[1] SPARE PARTS LIST............................................119
[2] CABINET PARTS ................................................161
[3] SUPPLIED ACCESSOORIES..............................165
[4] PACKING PARTS.................................................166
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-19S7E-BK LC-26S7E-BK LC-32S7E-BK
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.
19" F901 (T3.15AH/250V)
26"/32" F901 (T4AH/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, 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.
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-19S7E-BK LC-26S7E-BK LC-32S7E-BK
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-19S7E-BK LC-26S7E-BK LC-32S7E-BK
CHAPTER 1. OPERATION MANUAL
[1] SPECIFICATIONS
Specification
19" LCD COLOUR TV
Model: LC-19S7E
Video Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV Function
Rear
Side
Item
LCD screen size 19"diagonal 26"diagonal 32"diagonal
Number of dots 3,147,264 dots(1366x768x3 dots)
TV-Standard Analogue CCIR (B/G, I, D/K, L/L’)
Receiving
Channel
TV-Tuning System Auto Preset 999 ch, Auto Label, Auto Sort
STEREO/BILINGUAL STEREO/BILINGUAL
Backlight life 60,000 hours (at Backlight Standard position)
Viewing angles H : 176° V : 176°
Audio amplifier 3Wx2 5Wx2
Speaker (128.8 mmx40.2 mm)x2 (164.5 mm x 42 mm) x 2
SCART, SCART 1 SCART (AV input, RGB input, TV output-analogue only)
Component Y/Pb(Cb)/Pr(Cr), RCA pin (L/R)
HDMI / HDMI 1
Headphones Ø 3.5mm jack (Audio output)
VHF/UHF ATV : IRA-E69
CATV S-band, S1–S41ch
Antenna UHF/VHF 75
SCART 2 SCART (AV input, monitor output (analogue source - RF, SCART 1, SIDE AV)
PC IN VGA pin (AV input), Ø 3.5mm jack (Audio input)
AV OUT RCA pin (AV output) , RCA pin (L/R)
HDMI 2 For 26” and larger
AV IN RCA pin (AV input) , RCA pin (L/R)
Service Service socket
26" LCD COLOUR TV
Model: LC-26S7E
32" LCD COLOUR TV
Model: LC-32S7E
Bulgarian, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French,
OSD language
Power Requirement AC 220–240 V, 50 Hz
Power Consumption
Weight
Operating temperature 0°C to k40°C
45W (Standby<0.3W)
(Method IEC60107)
3.8 kg (Without stand),
4.0 kg (With stand)
German,Greek, Hungarian, Latvian, Lithuanian, Italian, Norwegian,
Polish, Portuguese, Romanian,Russian, Serbian, Slovak, Slovene, Spanish,
Swedish, Turkish, Ukrainian
55W (Standby<0.3W)
(Method IEC60107)
7.3 kg (Without stand),
8.4 kg (With stand)
65W (Standby<0.3W)
(Method IEC60107)
11.0 kg (Without stand),
12.4 kg (With stand)
• 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.
4
[2] OPERATION MANUAL
Remote control unit
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
POWER: Press to turn on/off the TV from or to standby mode.
VIDEO: Press to select Component / Side AV / HDMI1 /HDMI2 /HDMI3 input
SCART: Press to select SACRT1 / SCART2 input
PC: Press to select PC input
TV: Press to select TV input
Number Key: 1. Press number button to direct access to TV channel
2. Press the pass code to activate the factory mode
3. Press to activate the Channel Lock (enter PIN code for Channel lock)
4. If channel list OSD active – jump to that channel in the channel list (not tune
the channel until OK is pressed)
EPG: Press this key to display electronic program guide screen in DTV mode.
PRE PR: Press to alternate between the currently viewed channel and previously viewed
channel (It should return to previous view if it comes from different signal
source)
SOURCE: 1. Press repeatedly to select the signal source:
2. The Source List should be activated and show on OSD.
3. 1st press displays current, subsequent presses advance
ASPECT: Press to toggle among screen format Automatic/ Panoramic / 4:3 / Movie
expand 14:9 / Movie expand 16:9 / 16:9 subtitle /
wide screen
DUAL: Press to select mono / stereo / DUAL ATV channel. Select Audio language for
DTV channel.
SLEEP: Press to show the sleep-timer slider in the right side of screen. 1st press displays
current, subsequent presses advance (Loops)
(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 and input sources.
SOUND: Press to set the LCD TV to a predefined sound setting. Off / Rock / Pop / Live /
Dance / Techno / Classic / Soft
VOL +/ -: Press to adjust the volume
MUTE: Press to toggle audio on and off. You can also press +/- VOL to restore the previous
volume level.
DISPLAY: Press to display information about the selected TV channel (Channel banner)
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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
TV (Front view)
TV (Rear view)
(Standby/On) indicator
Remote control sensor
1 Power connector 2 HDMI /HDMI 1
3 PC IN (VGA/AUDIO) 4 SCART, SCART
5 SCART 2 (CVBS 6 Component (Video
7 Tuner Input
9 SERVICE socket 10 Earphone Output
11 Composite ( AV IN, AV/LR) 12 HDMI 2 (For 26” and 32” only)
8 AV VIDEO and L/R Audio Output
6
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 of the TV.
3. Fasten screws by using a cross-head
Screwdriver(Not supplied).
Wall mounting
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.
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
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-19S7E-BK LC-26S7E-BK LC-32S7E-BK
Appendix
troubleshooting
Problem Possible Solution
1. Connect power cord correctly.
No picture
Abnormal colours Connect signal cable correctly.
Twisted picture
Picture too dark Adjust brightness and contrast.
Audio only, no images
Picture only, no audio
Cannot use remote control
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
Cannot use a function If the item you choose turns gray, that item cannot be selected.
Cannot receive programmes Please use the Update scan method to add the channels not included in memory.
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.
Acknowledgements
The following open source software components are included in this product:
•linuxkernel•modutils•glibc•zlib•libpng
2008-03-14
2. Turn on power.
3. Connect signal cable correctly.
4. Press any button on the LCD TV.
1. Connect signal cable correctly.
2. Please use compatible signal.
1. Please check if input signal is connected correctly.
2. TV-RF signal must not be lower than 50dB.
1. Connect signal cable correctly.
2. Adjust volume to proper level.
3. Connect audio signal cable correctly.
4. TV-RF signal must not be lower than 50dB.
1. Please change battery.
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.
Please use multi-directional outdoor antenna.
(If your TV is subject to the influence of nearby mountains or buildings).
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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
[3] DIMENSIONS
(1)19”
(2)26”
\
10
(3)32”
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
CHAPTER 2. REMOVING OF MAJOR PARTS
[2.1] REMOVING OF MAJOR PARTS(LC-19S7E-BK)
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
Fig.2
Step 1. Remove the Base Assy.
1. Remove the base as Fig.3.
Remove the 3 screws and pull out the base plate as Fig.3
Fig.3
2. Remove the 4 screws. Detach the BASE STAND as Fig.4.
12
Fig.4
Step 2. Remove the REAR COVER Assy.
1. Remove the 11 screws. Detach the REAR COVER as Fig.5.
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
Fig.5
Step 3. Remove the Main, Power, IR, Key board,frame shielding and the Speakers.
Fig.6
1. Remove the 7 screws to move the frame shielding as Fig.7
Fig.7
2. Disconnect 5 cables to move the Scaler board as Fig.8.
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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
Fig.8
3. Remove the 5 screws and disconnect 5 cables. Detach the Power board as Fig.9.
Fig.9
4. Remove the 2 screws and disconnect 1 cable. Detach the IR board as Fig.10.
Fig.10
5. Disconnect 1 cable. Detach the Key board as Fig.11.
14
Fig.11
6. Remove the 4 screws .Detach the Speakers as Fig.12
Fig.12
Step 4. Remove the Metal Frame.
Remove the 5 screws. Detach the Metal Frame as Fig.13
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
Fig.13
Step 5. Remove the Bezel Assy.
1. Remove the Bezel Assy as Fig.14
Fig.14
2. The below picture is panel as Fig.15
Fig.15
REMOVING OF MAJOR PARTS(LC-26S7E-BK&LC-32S7E-BK)
1. Assy/Panel Removal
Notes: Please put your machine on soft material to avoid to scrape panel when you disassemble it.
Front view
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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
Fig.1
Back view
Fig.2
Step 1. Remove the Base Assy.
1. Remove the base plate as Fig.3.
Remove the 4 screws and pull out the base plate as Fig.3
Fig.3
2. Remove the 4 screws. Detach the BASE STAND as Fig.4.
Fig.4
16
Step 2. Remove the REAR COVER Assy.
1. Remove the 12 screws. Detach the REAR COVER as Fig.5.
Fig.5
Step 3. Remove the Main, Power, IR, Key board, and the Speakers.
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
Fig.6
1. Remove the 4 screws,and disconnect 5 cables to move the Scaler Board as Fig.7
Fig.7
3. Remove the 5 screws and disconnect 2 cables. Detach the Power board as Fig.8.
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Fig.8
17
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
4. Remove the 2 screws and disconnect 1 cable. Detach the IR board as Fig.9.
Fig.9
5. Remove the 2 screws and disconnect 1 cable. Detach the Key board as Fig.10.
Fig.10
6. Remove the 4 screws .Detach the Speakers as Fig.11
Fig.11
Step 4. Remove the Metal Frame.
Remove the 8 screws. Detach the Metal Frame as Fig.12
Fig.12
Step 5. Remove the Bezel Assy.
1. Remove the 8 screws,Detach the Bezel Assy as Fig.13
Fig.13
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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
2. The below picture is panel as Fig.14
Fig.14
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.
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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
CHAPTER 3. ADJUSTMENT PROCEDURE
PROCEDURE
[1] ADJUSTMENT PROCEDURE
1. OSD Menu
OSD tree - As following
Level 1 Level 2 Level 3 Level 4 remark
Picture
Smart Picture
Personal
Vivid
Standard
Movie
Game
Contrast 0 to 100
Brightness 0 to 100
Color 0 to 100
Hue -50 to 50
Sharpness 0 to 10
Noise
Reduction
Off
Minimum
Medium
Maximum
Colour Temp
Cool
Normal
Warm
Adv.Picture
Dynamic
Dynamic
MPEG artefact
Colour
PC Mode HDMI Video Timing
Eco
contrast
Backlight
reduction
enhancement
Fast menu have
the same item
Only
Off
On
Picture format
Auto Format
20
EU_VD only
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
Super zoom
NonPC_Non1080ip
only
4:3
Subtitle zoom
NonPC_Non1080ip
only
Movie exp.14:9
NonPC_Non1080ip
only
Movie exp.16:9
NonPC_Non1080ip
only
Wide screen
Unscaled
Horizontal shift 0 to 100
Vertical shift 0 to 100
Sound
Smart sound
PC_1080ip only
Fast menu have
the same item
Standard
News
Movie
Personal
Bass -8 to +8
Treble -8 to +8
Volume 0 to 100
Balance -8 to +8
Dual I / II
Dual I
Dual II
Mono / Stereo
Mono
Stereo
Surround
Off
On
Headphone
0 to 100
volume
Auto volume
Off
On
Delta Volume -8 to +8
Features
Sleeptimer 0~180
TV(RF) Only
TV(RF) Only
Headphone Plugin
only
Clock
Cancel
HH
MM
Time Widget
Done
On timer
Activate
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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
Off
Once
Daily
Time
Cancel
HH
MM
Done
Wizard
Time Widget
Program No.
MinCH~MaxCH
TV lock
Lock
Unlock
Set Code
Wizard
need check
password
password not set
only
Change code
password set only
Phase 0 to 100 VGA Only
Clock 0 to 100 VGA Only
Auto Adjust VGA Only
Yes
Reset VGA Only, Reset
H&V Shift,
Phase, Clock
Yes
Installation
Menu language
Czech,
Bulgarian,
Danish,
German, Greek,
English,
Spanish,
French,
Croatian,
Italian,
Hungarian,
Dutch,
Norwegian,
Polish,
Portuguese,
Romanian,
Russian,
Slovak,
Slovenian,
Serbian,
Finnish,
Swedish,
Turkish,
Ukrianian,
Estonian
Channel
installation
Automatic
installation
Auto store Wizard
22
Analogue:
Manual
System
EUROPE
FRANCE
UK
WEST_EUROPE
LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
Wizard
EAST_EUROPE
PAL_BG_55MHZ
PAL_I_60MHZ
PAL_DK_65MHZ
Search
Fine tune
Store current
0~999Mhz
-1M~1M
channel
Store as new
channel
Skip channel
Wizard
Wizard
Wizard / this is OSD
value,tuner stiil has
limitation
Wizard
Wizard
Wizard
Wizard
Wizard
Decoder
Channel
All active
channel
Status
None
Ext1
Ext2
Factory settings
Reset
Current
Software
Show F/W
version and
update Data
Installation
Off
On
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TV(RF) Only force
channel to SCART
Wizard
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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
2. Picture check
1）Auto Color Adjust (B)
For CVI (YPbPr) source
General set-up:
Equipment : Quantum Data Pattern Generator 802G or 802R or 882;
Apply 576i, and the pattern TVBAR100 shown in figure 1.
Figure 1. TVBAR100
Alignment method:
Initial Set-up : Set Smart picture as “Standard”
Access to factory OSD first, then to enable AUTO-COLOR to get HD ADC OFFSET and HD ADC
GAIN. Check 32 Gray scales can be distinguishable
Process
~ Press MENU key
~ Press digit “1999” to enter factory mode (Fig. 2)
~ Press ↑, ↓ to move curser to “AUTO COLOR ”
~ Press OK to do “ADC GAIN” and “ADC OFFSET”
~ “SAVE” and “EXIT”
Figure 2. OSD in factory mode
For PC (DSUB) source
Set Smart picture as “Standard” and apply 1024x768 @60Hz mode with 50 Black and 50 White pattern at
the factory mode
Activate AUTO-COLOR function for auto ADC offset and gain setup.
Figure 3. 50-Black 50-White
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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
2）. White Balance Adjustment (B)
General set-up:
Equipment Requirements: Color analyzer.
Input requirements:
For SZ factory:
Signal Type : RF signal
Set to PAL D/K system, frequency=184.25MHz ( for China
model ) with white pattern of 80%
Set to PAL B/G system, frequency=64.25MHz ( for AP
model ) with white pattern of 80%
Input Signal Strength : 10mV (80 dBuV) terminal voltage.
Input Injection Point : TV Tuner input
For FQ factory:
Signal Type : CVI (YPbPr)
Using Quantum Data Pattern Generator 802G or 802R or 882;
Set to 576i with white pattern of 80% (flat patten)
Alignment Request in the center of the screen
Apply full white pattern, select smart setting to be Standard. Adjusting SCALER GAIN R G B to reach
W/D and luminance in factory mode as below.
Adjust Color Temp in the factory Mode OSD by adjusting GAIN R xxx G xxx B xxx in
factory mode (Fig. 4)
CIE1391 chromaticity (x,y) shall be
Color Temp. x y
Cool
Normal
Warm
~ R/G/B Gain value <= 127 to avoid satsuation at 32-grey pattern.
~At TV Luminance at Normal >= 250 cd/m2 when contrast and brightness and color are 100%.
~At PC Luminance at Normal >= 250 cd/m
~
These group settings about color temp are also applied automatically into
HDMI1/CVI(for SZ factory)/SIDE AV/PC/TV(for FQ factory). That means TV/HDMI/CVI/PC are
used the same setting.
0.272 + 0.01 0.277+ 0.01
0.289 + 0.01 0.291 + 0.01
0.314 + 0.01 0.319 + 0.01
2
when contrast and brightness are 100%.
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[2] SERVICE MODE
Enter factory mode menu: Press the key “1999” on remote control.
Press ↑, ↓ to choose the value
Press OK to fix the value.
Press OK to exit the factory mode when choose “exit” value,
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[3] SOFTWARE UPGRADE PROCEDURE
Connect to TV USB port to upgrade the software firmware.
Please follow the following step to upgrade the firmware.
1. Copy the software firmware (*.bin) to USB Disk.
2. Insert the USB Disk to TV USB port.
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3. Unplug the AC cord.
4. AC power on
5. Reboot TV to update SW automatically. During upgrade FW the front LED will red light blink.
6. When FW upgrade is finished LED will stop blinking and keep at (Blue + red) color.
After finish upgrade process.
7. Remove USB disk from TV.
8. Turn AC Off then On to reboot TV
Check the software version is correct or not. (Menu /Installation/Current software)
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p
CHAPTER 4. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE（19”）
Power unit operation check.
↓
Are the power cord and harness in the unit properly connected?
LINE_FILTER_UNIT: ↓ YES
Is F901 normal?
POWER_UNIT
Is BD901 (+320V) output?
* When power on/off switch is on ‧‧‧ About +400V
Is a voltage of +5.3V applied to pin (3,4) of connector (CN902)?
Is a voltage of +18V applied to pin (8,9) of connector (CN902)?
↓YES
↓YES
↓YES
NO
NO
NO
NO
NO
Connect the power cord and harness properly, and turn on the
ower.
LINE_FILTER_UNIT:
Isn't C908, RV901, L902, C900, C901, etc. out of order?
Moreover, whether the short-circuit with the circumference circuit
is checked.
Does the circuit operate normally?
Check circuit around (FB901, Q906, ZD904, IC901 etc ).
Does the switching circuit operate normally?
Check circuit around the primary side (T901, ZD906, D901,
D903, Q903, D904, IC901, IC902, D905 etc.), the secondary
side (D905, L904, etc.), the DC_DET circuit (IC902, ZD903,
IC901, ZD902, etc.), and the protection circuit.
Does the inverter circuit operate normally?
Check circuit around (Q801, ZD801, ZD802, Q805, Q806, IC801,
T801, L801, L802, etc.), and the protection circuit.
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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 (84) (DACOUTL0) and pin (85)
(DACOUTR0) of IC U4201 normal?
NO
↓YES
Is the audio signal output of pin (9) (OUTL) and pin (11) (OUTR) of
IC U6101 normal?
NO
↓YES
Is audio signal input to pin (5)(LIN), pin (6)(RIN) of IC U6102
(AMP)?
NO
↓YES
Is MUTE/SHUTDOWN circuit [AMP_MUTE, AMP_STBY] normal?
NO
↓YES
Is the audio signal output of pin (3,4) (LOUT+) and pin (1,2)
(ROUT+) of CN6101 (AUDIO-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 (13) of TUNER (TU1101)?
NO
↓YES
Is the SIF signal sent to pin 54(SIFP) and pin 55(SIFM) of IC
U4201?
NO
↓YES
Refer to “No sound output in all modes”.
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No sound from external input devices (1)
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Check IC U4201 and its peripheral circuits.
Check IC U6101 and its peripheral circuits.
Check the line between IC U6101 and IC U6102.
Check the AMP_MUTE and AMP_STBY. (Q6106, etc.)
Check IC U6102 and its peripheral circuits.
Check the tuner and its peripheral circuits. Replace as required.
Check IC U4201 its peripheral circuits.
.
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↓
Does not the sound of the audio signal input to SCART1 go out?
TEREMINAL UNIT: ↓
Is the audio signal properly sent to pin (6) (YPbPr2_AU_INL) and
pin (2) (YPbPr2_AU_INR) of SCART1(CN1901)?
↓YES
Is the audio signal properly sent to pin (72) (AUL1) and pin (73)
(AUR1) of IC U4201?
↓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 YPbPr (Component) go out?
MAIN UNIT: ↓
Is the audio signal properly sent to pin (8) (YPbPr1_AU_INL) and
pin (10)( YPbPr1_AU_INR) of CN1201?
↓YES
Is the audio signal properly sent to pin (70) (AUL0) and pin (71)
(AUR0) of IC U4201?
↓YES
Refer to “No sound output in all modes”.
No sound from external input devices (3)
↓
Does not the sound of the audio signal input to PC(VGA) go out?
MAIN UNIT: ↓
Is the audio signal properly sent to pin (2) (PC_AU_INL) and pin (3)
(PC_AU_INR) of CN1702?
↓YES
Is the audio signal properly sent to pin (75) (AUL2) and pin (76)
(AUR2) of IC U4201?
↓YES
Refer to “No sound output in all modes”.
NO
NO
NO
NO
NO
NO
Check the setting of an external input device that connects of
CN1901.
Check the line between CN1901 and IC U4201
Check the connection to CN1201 and the external input device
Check the line between CN1201 and IC U4201.
.
Check the connection to CN1702 and the external input device.
Check the line between CN1702 and IC U4201.
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