SHARP LC20D42U Service Manual

LC-20D42U
N27A9LC20D42U
LCD COLOR TELEVISION
MODEL
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.
LC-20D42U
Page
» IMPORTANT SERVICE SAFETY PRECAUTION.........................................................................................2
» SPECIFICATIONS ........................................................................................................................................5
» OPERATION MANUAL .................................................................................................................................6
» DIMENSIONS ...............................................................................................................................................9
» REMOVING OF MAJOR PARTS ................................................................................................................10
» ADJUSTING PROCEDURE OF EACH SECTION .....................................................................................15
» PUBLIC MODE SETTING PROCEDURE ..................................................................................................26
» TROUBLESHOOTING TABLE ....................................................................................................................31
» MAJOR IC INFORMATIONS ......................................................................................................................42
» BLOCK DIAGRAM ......................................................................................................................................44
» OVERALL WIRING DIAGRAM ................................................................................................................... 46
» DESCRIPTION OF SCHEMATIC DIAGRAM ............................................................................................. 48
» SCHEMATIC DIAGRAM
ËLED Unit...................................................................................................................................................49
ËMAIN Unit.................................................................................................................................................50
ËKEYUnit ...................................................................................................................................................90
» PRINTED WIRING BOARD ASSEMBLIES ................................................................................................92
» REPLACEMENT PARTS LIST .................................................................................................................. 104
» PA CKING OF THE SET ............................................................................................................................119
This document has been published to be used for after sales service only. The contents are subject to change without notice.
LC-20D42U
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.
AV
F1(250V 3.15A), F101(125V 5A)
•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 0.75 Vrms (this corresponds to 0.5 mA rms AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the monitor to the owner.
DVM
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 120 volt AC outlet.
•Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral­leled by a 0.15 F 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.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
µ
TO EXPOSED METAL PARTS
AC SCALE
1.5k ohm 10W
0.15µF
TEST PROBE
CONNECT TO KNOWN 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
Par
ts
are identified by " " and shaded areas in the Replacement and Schematic Diagrams.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Lists
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.
2
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
s s
-
Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants.
Al'aide de deux fils à pinces, brancher une résistance de 1.5 k
AVERTISSEMENT
1.
N'entreprendre Aaucunemodification de tout circuit. C'est danger­eux.
2.
Débrancher le récepteur avant toute réparation.
PRECAUTION: POUR LA PRO­TECTION CONTINUE CONTRE LES RISQUES D'INCENDIE, RE­MPLACER LE FUSIBLE
AV
F1(250V 3.15A), F101 (125 5A)
VERIFICATIONS CONTRE L'INCEN-DIE ET LE CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur , effectuer les vérifica­tions suivantes.
3.
Inspecter tous les faisceaux de câbles pour s'assurer que les fils ne soient pas pincés ou qu'un outil ne soit pas placé entre le châs­sis et les autres pièces métalliques du récepteur.
4.
Inspecter tous les dispositifs de protection comme les boutons de commande non-métalliques, les isolants, le dos du coffret, les cou­vercles ou blindages de réglage et de compartiment, les réseaux de résistancecapacité, les isolateurs mécaniques, etc.
S'assurer qu'il n'y ait pas de danger d'électrocution en vérifiant la
5. fuite de courant, de la facon suivante:
Brancher le cordon d'alimentation directem-ent à une prise de cou­rant de 120V. (Ne pas utiliser de transformateur d'isolation pour cet essai).
10 watts en parallèle avec un condensateur de 0.15µFensérie avec toutes les pièces métalliques exposées du coffret et une terre connue comme une conduite électrique ou une prise de terre branchée à la terre.
Utiliser un voltmètre CA d'une sensibilité d'au moins 5000 /V pour mesurer la chute de tension en travers de la résistance.
Toucher avec la sonde d'essai les pièces métalliques exposées qui présentent une voie de retour au châssis (antenne, coffret métalli­que, tête des vis, arbres de commande et des boutons, écusson, etc.) et mesurer la chute de tension CA en-travers de la résistance. Toutes les vérifications doivent être refaites après avoir inversé la fiche du cordon d'alimentation. (Si nécessaire, une prise d'adpatation non polarisée peut être utilisée dans le but de termin­er ces vérifications.) La tension de pointe mesurèe ne doit pas dépasser 0.75V (corre­spondante au courant CA de pointe de 0.5mA). Dans le cas contraire, il y a une possibilité de choc électrique qui doit être supprimée avant de rendre le récepteur au client.
DVM
ECHELLE CA
1.5k ohm 10W
µ
F
0.15
SONDE D'ESSAI
LC-20D42U
AUX PIECES METALLIQUES EXPOSEES
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
BRANCHER A UNE TERRE CONNUE
AVIS POUR LA SECURITE
De nombreuses pièces, électriques et mécaniques, dans les télévi­seur ACL présentent des caractéristiques spéciales relatives à la sé­curité, qui ne sont souvent pas évidentes à vue. Le degré de protec­tion ne peut pas être nécessairement augmentée en utilisant des pièces de remplacement étalonnées pour haute tension, puissance, etc. Les pièces de remplacement qui présentent ces caractéristiques sont identifiées dans ce manuel; les pièces électriques qui présentent ces particularités sont identifiées par la marque " " et hachurées dans la liste des pièces de remplacement et les diagrammes schématiques.
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Pour assurer la protection, ces pièces doivent être identiques à celle utilisées dans le circuit d'origine. L'utilisation de pièces qui n'ont pa les mêmes caractéristiques que les pièces recommandées par l'usine, indiquées dans ce manuel, peut provoquer des électrocutions, incen dies, radiations X ou autres accidents.
3
LC-20D42U
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:
Indicates lead-free solder of tin, silver and copper. Indicates lead-free solder of tin, silver and copper.
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 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 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.
°C which is higher than the conventional lead solder by 40 °C, and as it has poor
°C, we recommend you to use a dedicated soldering
•Be careful when replacing parts with polarity indication on the PWB silk.
Lead-free wire solder for servicing
PARTS CODE
ZHNDAi123250E BL J 0.3mm 250g (1roll) ZHNDAi126500E BK J 0.6mm 500g (1roll) ZHNDAi12801KE BM J 1.0mm 1kg (1roll)
PRICE RANK
PART
DELIVERY
DESCRIPTION
φ φ φ
4
SPECIFICATIONS
LC-20D42U
Item
LCD panel
Number of dots TV
Function
TV-standard (CCIR) Receiving
Channel
Audio multiplex Backlight
Audio out
Terminals
Rear
Front
Side
USB SOFT UPDATE (When service man and products USB is used only by update of program.
OSD language
Power Requirement Power Consumption
Model
LC-20D42U
20"Advanced Super View & BLACK TFT LCD
×
3,147,264 dots (1366 768 3 dots)
×
American TV Standard ATSC/NTSC System VHF/UHF CATV Digital Terretrial
Broadcast(8VSB) Digital cable
(64/256 QAM)
VHF 2-13ch, UHF 14-69ch
1-135ch (non-scrambled channel only)
2-69ch
*1
1-135ch (non-scrambled channel only)
BTSC System
60,000 hours (at Backlight Standard position)
×
5W 2
INPUT 1 INPUT 2 INPUT 3
INPUT 4 INPUT 5
AV in, COMPONENT in
AV in
AV in, S-VIDEO in
HDMI in with HDCP
HDMI Analog Audio in, HDMI in with HDCP
INPUT 6 15 pin mini D-sub, PC Audio in (Ø 3.5 mm jack)
ANTENNA DIGITAL AUDIO OUTPUT
75 Ω Unbalance, F Type 1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)
Optical Digital audio output 1 (PCM/Dolby Digital)
×
×
OUTPUT Audio out MOBILE AUDIO
Mobile Audio in
The ordinary user never uses it. )
English/French/Spanish
AC 120 V, 60 Hz
69 W (0.3 W Standby with AC 120V)
Weight
w/o stand with stand
Dimension (W H D)
*2
×
×
w/o stand
with stand
Operating temperature
*1
Emergency alert messages via Cable are unreceivable.
*2
The dimensional drawings are shown on the inside back cover.
As part of policy of continuous improvement, SHARP reserves the right to make design and speci cation changes for product
*
15.8 lbs./12.0 kg
13.2 lbs./14.5 kg
35
20
/64 1545/64 855/64 inch
35
×
/64 1419/64 533/64 inch
20
+
32˚F to 104˚F (0˚C to 40˚C)
×
×
×
+
+
improvement without prior notice. The performance speci cation gures indicated are nominal values of production units. There may be some deviations from these values in individual units.
5
LC-20D42U
Part names
TV (Front)
Remote
control sensor
OPC
sensor*
*OPC: Optical Picture Control **See page 16 for TV status indicator.
TV (Rear)
OPERATION MANUAL
MOBILE AUDIO jack OPC indicator*
POWER indicator**
To change the vertical angle of the LCD TV set, tilt thescreen up to 2.5 degrees forward or 10 degrees backwards.Please adjust the angle so that the LCD TV set can be watched most comfortably.
SOFT UPDATE The ordinary user never uses it.
USB terminal
AUDIO terminals (INPUT 5) HDMI terminal (INPUT 5)
HDMI terminal (INPUT 4)
PC IN terminals (INPUT 6)
AUDIO OUTPUT terminals
DIGITAL AUDIO OUTPUT terminal Antenna/Cable in
Channel buttons
(CH / )
Volume buttons
(VOL + / - )
INPUT button
MENU button
POWER button
INPUT 3 terminals INPUT 2 terminals INPUT 1 terminals
AC INPUT terminal
6
Part names
LC-20D42U
Remote control unit
1 POWER: Switch the TV power on or enters standby. 2 0 - 9: Set the channel.
3 (DOT):
»
+
4 VOL / : Set the volume. 5 DISPLAY: Display the channel and the clock
6 INPUT: Select a TV input source. (TV, INPUT 1,
7 VIEW MODE: Select the screen size. 8 FREEZE: Set the still image. Press again to return to
9 EXIT: Turn off the menu screen. 10 FAVORITE CH A, B, C, D: Select 4 preset favorite channels in 4
While watching, you can toggle the selected channels
11 SLEEP: Set the sleep timer. 12 FAVORITE: Set the favorite channels. 13 AUDIO: Selects the MTS/SAP or the audio mode
14 ENT: Jumps to a channel after selecting with the 0 - 9
15 CH / : Select the channel. 16 MUTE: Mute the sound.
17 SURROUND: Select Surround settings.
18 FLASHBACK: Return to the previous channel or
external input mode. MENU: Display the menu screen.
19
20 / / / /ENTER: Select a desired item on the
21 RETURN: Return to the previous menu screen. 22 CC: Display captions from a closed-caption source.
23 AV MODE: Select an audio or video setting.
-
information .
INPUT 2, INPUT 3, INPUT 4, INPUT 5, INPUT 6)
normal screen.
different categories.
by pressing A, B, C and D.
during multi-channel audio broadcasts.
buttons.
screen.
(When the input source is TV, INPUT 1, 2 or 3: STANDARD, MOVIE, GAME, USER, DYNAMIC (Fixed), DYNAMIC. When the input source is INPUT 4, 5 or 6: STANDARD, MOVIE, GAME, PC, USER, DYNAMIC (Fixed), DYNAMIC)
When using the remote control unit, point it at the TV.
7
LC-20D42U
Basic adjustment sitings
Menu items for TV/INPUT 1/2/3 Menu items for HDMI/PC-IN
OPC Backlight Contrast Brightness Color Tint Sharpness Advanced
Color Temp. Black I/P Setting Film Mode 3D-Y/C Monochrome Range of OPC
Treble Bass Balance Surround
No Signal Off No Operation Off
OPC Backlight Contrast Brightness Color Tint Sharpness Advanced
Color Temp. Black I/P Setting Film Mode Monochrome Range of OPC
Treble Bass Balance Surround
No Signal Off No Operation Off
EZ Setup CH Setup Antenna Setup-DIGITAL Input Skip Input Label Parental CTRL Position Language Clock Setup Music Player Input Reset
Audio Only Digital Noise Reduction Input Select Output Select Color System Caption Setup Program Title Display Favorite CH Wake-up Timer Setup
Audio Setup
Input Skip Input Signal Auto Sync. Input Label Fine Sync. Position Language Clock Setup Music Player Input Reset
Audio Only Digital Noise Reduction HDMI Setup Output Select Wake-up Timer Setup
Some menu items may not be displayed depending on the
selected input source.
8
17
20
35
15
/32
/64
(522)
(443.6)
DIMENSIONS
12
LC-20D42U
33
/64
(318)
(36)
/64
27
1
(363)
/64
19
14
(249.4)
/16
13
9
(399)
/64
(234)
45
/32
7
15
9
23
2
(60)
/64
33
5
(140)
15
3
/16
(100)
(62)
/16
7
2
(100)
/16
15
3
/64
5
(92)
/8
3
55
(225)
/64
8
9
LC-20D42U
REMOVING OF MAJOR PARTS
1. Remove the lock screw and detach the Stand Cover.
2. Remove the 4 lock screw and detach the Stand Assy.
3. Remove the USB Cover.
4. Remove the 5 lock screws,4 lock screws,3 lock screws,1 lock screw and detach the Cabinet B.
Cabinet A
4
3
USB Cover
Stand Cover
1
Cabinet B
2
Stand Assy
10
5. Remove the 6 lock screws,3 lock screws and detach the Main Shield.
6. Remove the 2 lock screws and detach the Chassis Frame.
LC-20D42U
6
5
Main Shield
Chassis Frame
11
LC-20D42U
7. Disconnect all the connectors from all he PWBs.
8. Remove the 2 lock screws and detach Top Cover Assy.
9. Remove the 2 lock screws from the Top Cover Assy and detach the KEY Unit.
10.Remove the 4 lock screws and detach the Speaker Assy L&R.
11.Remove the 2 lock screws and detach the R/C LED Unit.
8
Top Cover Assy
KEY Unit
9
10
7
7
R/C LED Unit
11
Speaker Assy L&R
10
12
12. Remove the 5 lock screws and detach the POWER Unit.
13. Remove the 6 lock screws and detach the MAIN Unit.
14. Remove the 2 lock rivets and detach the Radiator.
15. Remove the 2 Earth Plate.
LC-20D42U
Earth Plate
13
15
14
Radiator
12
POWER Unit
MAIN Unit
13
LC-20D42U
16.Remove the 6 lock screws,5 lock screws and detach the Back Shield.
Back Shield
16
14
LC-20D42U
ADJUSTING PROCEDURE OF EACH SECTION
[1] ADJUSTMENT PROCEDURETME
The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is required due to part replacement,make an adjustment according to the following procedure.
1. After replacement of any PWB unit and/or IC for repair,please note the following.
• When replacing the following units, make sure to prepare the new units loaded with updated software.
MAIN Unit:DUNKE001FMF1
2. Upgrading of each microprocessor software
Caution:Never "POWER OFF" the unit when software upgrade is on going. Otherwise the system may be damaged beyond recovery.
2.1. Software version upgrade
The model employs the following software.
Main software
•Monitor microprocessor software.
The main software and the monitor microprocessor software can be upgraded by using a general-purpose USB Memory.
The followings are the procedures for upgrading,explained separately for each of the main software,the monitor microprocessor software.
2.2. Main software version upgrade
Get ready before you start
• USB Memory of 128MB or higher capacity.
• PC running on Windows 98/98SE/ME/2000/XP operating system.
• USB Memory reader/writer with USB connectivity.
Preparations
To upgrade the main software,it is necessary to get ready the USB Memory for version upgrade before you start.
Follow the steps below and create the USB Memory for version upgrade.
1. Copy the file 42LTAxxx.USB(named temporarily) for version upgrade to the root directory (folder) of the USB Momory.
NOTE:In the USB Memory drive, do not store other folders or unrelated files, or more than one files for version upgrade.
Now the USB Memory for version upgrade is ready.
How to upgrade the software
2.
Unplug the AC cord. (make sure AC power shut down more than 1 minute.)
3. Insert the USB Memory for version upgrade (prepared as above) into the service socket located Right side from center at terminals,above HDMI4 terminal in the rear of the unit.
4. plug in the AC cord with power button pressing after 5 seconds later, unpress the power button.
5. After the unit startup,the system upgrade screen as shown below appears within 20-40 seconds.
100%
MOISE_LITE
MAIN
45%
MONITOR
NO DATA
SYSTEM UPGRADE
EEPROM
USB - MEMORY
DETECT
U0612111 OLD Version
NEW Version U0612201
Boot Version
D42U_LITE 0.80
15
LC-20D42U
6. Even a single failure in the process will trigger the upgrade failure screen as shown below.the word "NG" channges to red for the item failed.
NOTE: In the event of a failure, repeat the upgrading process.If the process repeatedly fails. it is likely that the hardware is troubled.
100%
100%
MOISE_LITE
MOISE_LITE
SYSTEM UPGRADE
MAIN
45%
MONITOR
NO DATA
NG
NEW Version U0612201
Boot Version
EEPROM
USB - MEMORY
DETECT
U0612111 OLD Version
D42U_LITE 0.80
7.Upon completion of the whole process,the upgrade success screen as shown below appears.You can check the new software version on this screen. The version information appears after the upgrade is complete.
UPGRADE SUCCESS
MAIN
100%
MONITOR
NO DATA
EEPROM
USB - MEMORY
DETECT
U0612111 OLD Version
NEW Version U0612201
Boot Version
D42U_LITE 0.80
8.unplug the AC cord and remove the USB Memory for version upgrade.
9
.Now the software version upgrade is complete.
NOTE: When you are done with the software version upgrade,start the set,go to the top page of the adjustment process screen and check the main
software version information.
2.3. Monitor microprocessor software version upgrade
Create the USB memory for monitor microprocessor software version upgrade in the same manner as explained in the "Main software version upgrad".
Copy the file 42LTMxxx.USB and 42LTMxxx.BIN(named temorarily ) for monitor microprocessor software version upgrade to th USB memory.
How to upgrade the software
1. Unplug the AC cord.(make sure AC power shut down more than 1 minute.)
2. Insert the USB memory for version upgrade (prepared as above) into the service socket located Right side from center at terminals,above HDMI4 terminal in the rear of the unit.
3. plug in the AC cord with power button pressing.
4. After 5 seconds later,unpress the power botton.
CAUTION: The moment this operation is done,the upgrading of the monitor microprocessor software starts.While the upgrade is ongoing,never power
5. After the upgrade startup, the power light will flash continuous.
off the unit. Otherwise the upgrade will fail and the system may have a serious damage beyond recovery (inability to start).
After the monitor microprocessor software is upgrade, should preform the "Industry Init " by all mean.
16
6. A failure in the process will trigger the upgrade failure screen.The word "NG" changes to red for the item failed.
UPGRADE FAILURE
MONITOR
Model err
NG
LC-20D42U
OLD Version
NEW Version
0.95
0.95
NOTE: In the event of a failure,repeat the upgrading process.If the process repeatedly fails, it is likely that the hardware is troubled.
7. Upon completion of the whole process,the set will restart autowatically.
8. Unplug the AC cord and remove the USB Memory for version upgrade.
9. Now the software versin upgrade is complete.
NOTE: When you are done with the software version upgrade,start the set,go to the top page of the adjustment process screen and check the mon-
itor microprocessor software version information and panel size information.
2.4. LCD TV Adjustment item
1.MICON SOFTWARE Writing
(1) Monitor Micon and Main Micon software writing (Main PWB : QPWBXE001WJN1)
Adjustment item
1 Software writing Inspection mode
Adjustment conditions
Connect the tool by using write MAIN soft to P9301 (TL9301,TL9302,TL9310 - TL9355,TL9357, TL9359,TL9375,TL9378,TL9380 - TL9383) that is mounted on the main PWB,and insert USB Memory by using MONITOR MICON to main PWB.MONITOR connect to TL8123,TL8124 that denoted figure. Load stated voltage to MAIN PWB, write the lastest version MAIN SOFT to
file version checking
IC8451, and write the MONITOR MICON SOFT to IC2002, after all completed,turn off the AC power. NOTE When the USB MEMORY cant insert to main PWB or read out is error,MAIN Miro software must be writed anain.
2. Signal adjustment
(1) Checking the Device
Before starting the adjustment,make sure the adjustment tool and signal generator are set for Sharp LCD US.
Checking the signal generator level adjustment (Set to th standard level)
Composite signal : 0.714 Vp-p ± 0.02 (from pedestal to white)
15K component signal : Y level : 0.714 Vp-p ± 0.02 (from pedestal to white)
Pb, Pr LEVEL : 0.7 Vp-p ± 0.02 Vp-p
33K component signal : Y LEVEL : 0.7 Vp-p ± 0.02 Vp-p (from pedestal to white)
Pb, Pr LEVEL : 0.7 Vp-p ± 0.02 Vp-p
Analog RGB signal : RGB LEVEL : from pedestal to white)
0.7 Vp-p ± 0.02 Vp-p
Adjustment procedure
17
LC-20D42U
(2).Process mode
Adjustment item Adjustment procedure
Process mode Enter the process adjustment mode using the process adjustment remote controller
1
(3
)Composite N358 signal/tuner adjustment
Adjustment item
1 Setting N358 signal
Adjustment conditions
Adjustment conditions
US-10ch
Adjustment procedure
Feed the N358 color bar signal(75%)to VIDEO 1 Input
Feed the RF signal (by use of US-10CH) to TUNER.
[Video input signal] [US-10ch]
75% Color saturation
100% white 0% black 100% white
2 Automatic adjust-
ment execution
(4) 15K COMPONENT signal adjustment
Adjustment item
1 Setting 480i signal Feed the 100% color Bar signal to VIDEO1 COMPONENT input
2 Automatic adjust-
ment execution
(5) Component 33Ksignal adjustment
Adjustment item
1 Setting 1080i signal Feed the 100% color Bar signal to VIDEO1 CIMPONENT input
Adjustment conditions
Adjustment conditions
Move the cursor to [ N358 ADJ] and press the [ENTER] key.
When [ N358 ADJ OK] appears,the adjustment is complete.
Adjustment procedure
100% Color saturation
100% white
Move the cursor t0 [ COMP 15K ALL ADJ] and press the [ENTER] key.. When [ COMP 15K ALL ADJ OK] appears, the adjustment is complete.
Adjustment procedure
480i 100% color bar
0% black
2 Automatic adjust-
ment execution
100% Color saturation
100% white
Move the cursor to [ HDTV ADJ ] and press the [ENTER] key. When [ HDTV ADJ OK] appears, the adjustment is complete.
1080i 100% color bar
0% black
18
(6) Analog RGB signal adjustment
Adjustment item
1 Setting Analog RGB signal: XGA
Adjustment conditions
(1024x768) 60HZ
SYNC: HV separate
LC-20D42U
Adjustment procedure
Feed the XGA100% color bar signal to analog RGB input.
2Automatic adjust-
ment execution
) Tuner/V-Chip test
(7
Adjustment item
1 Setting NTSC RF signal
2 Automatic adjust-
ment execution
Adjustment conditions
US-4(AIR)ch
100% Color saturation
100% white
Move the cursor to [ ANALOG RGB ADJ] and press the [ENTER] key.
When [ ANALOG RGB ADJ OK] appears ,the adjustment is complete.
Feed the NTSC signal to RF ANTENNA.
Move the cursor to[ TUNER VCHIIP TEST(*04ch)] and press the [ENTER] key.
(* Select the channel according to RF signal.)
When [ A-OK(***.**)/VM-OK] appears in blue, the test is complete.(If [A-NG/VM-NG] appears in yellow or red, the test is incomplete. Make sure a displacement of ±
Adjustment procedure
0.0625MHZ from the center frequency is acceptable.
XGA 100% color bar
0% black
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3.White balance adjustment
Adjustment item
1 Setting For detailed adjustment procedure refer to "Kameyama Model Integral WB Adjustment
2 Automatic adjust-
ment execution
Adjustment conditions
[Command] Process mode KRSW0001 KKT10037
Setting
KYOF0000
OSDS0001 SBSL0016
Multi-point adjustment
MSET0001
Adjustment value
initialization MSET0004
Point 6 WBI60928 MG6G**** MG6B**** MG6R****
Point 5 WBI50800 MG5G**** MG5B**** MG5R****
Point 4 WBI40680 MG4G**** MG4B**** MG4R****
Point 3 WBI30480 MG3G**** MG3B**** MG3R****
Point 2 WBI20312 MG2G**** MG2B**** MG2R****
Point 1 WBI10168 MG1G**** MG1B**** MG1R****
Specifications V1.4".
1) Make the following settings for the set.
2) Connect the white balance adjustment tool to the set. [Adjustment prcedure]
1) Using the remote controller,transmit the "monitor adjustment process" code.
2) Set the 6
3) Set the 5
4)
5)
6)
7)
8) With the MSET0003 command, write the adjustment values and turn off the AC
* Initial R, G and B settings at point 6: Gradation level set at 928 * Initial R and B settings at points 1 thru 5:Correct the setting same remainder of
RGB setting at each point (This is because the adjustment is made to achieve the same remainder of RGB setting/4 at each point.
[Adjustment value]
As per the "standard set" submitted by Engineering Department
[LC-20D42U] Teaching Set.
[Adjustment reference] Instrument:[Minolta CA-210] Engineering instrument
Point 6 928 X=0.272 ±0.0012 ±0.0020
Point 5 800 X=0.272 ±0.0012 ±0.0020
Point 4 680 X=0.272 ±0.0012 ±0.0020
Point 3 480 X=0.272 ±0.0012 ±0.0020
Point 2 312 X=0.272 ±0.0020 ±0.0030
Point 1 168 X=0.272 ±0.0035 ±0.0045
Note Set conditions for inspection
AV MODE: [DYNAMIC] Backlight: +16 Aging time: Min. 60 minutes
th
turn down the R,G and B settings to their reference levels.
Correct the G setting (800 x 6th point G setting /928) (rounded off), and make the R and B settings to their reference levels.
Set the 4
Correct the G setting (680 x 6th point G setting /928) (rounded off), and make the R and B settings to their reference levels.
Set the 3rd point to the specified gradation level.
Correct the G setting (480 x 6th point G setting /928) (rounded off), and make the R and B settings to their reference levels.
Set the 2nd point to the specified gradation level.
Correct the G setting (312 x 6th point G setting /928) (rounded off), and make the R and B settings to their reference levels.
Set the 1st point to the specified gradation level.
Correct the G setting (168 x 6th point G setting /928) (rounded off), and make the R and B settings to their reference levels.
power.
point to the specified gradation level,With the strongest color being fixed, ,
th
point to the specified gradation level.
th
point to the specified gradation level.
Level Reference Adj. spec Ins. spec
Adjustment procedure
y=0.277
y=0.2777
y=0.277
y=0.277
y=0.277
y=0.277
AV MODE: [DYNAMIC] (Reset)
Monochro: ON
Aging Time: Min. 60 minutes
Writing MSET0003
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4. Key writing
1. EDID writing (Main PWB :QPWBXE001WJZZ,Analog RGB/GDMI input terminal)
Adjustment item
1 Analog RGB
EDID writing
HDMI EDID
2
Writing
Adjustment conditions
File Version checking 1) Using the checker,write the EDID data for HDMI to
IC1505 that is mounted on the main PWB.
TL1514: I2C CLODK, TL1515: 12C DATA TL1516: 5V, TL1517: GND
TL1524: write protection (H:write enable,Low: write
protection)
2) In the analog RGB inspection,use a DDC-compatible device. If the EDID has been written,the RGB input
does not function normally.
Inspection mode File version checking
1)
Using the checker,write the analog HDMI EDID data to IC1501 and IC1502 that are mounted on the main PWB.
TL15108/1510: I2C CLODK, TL1509/1511: 12C DATA
TL1512/1513: 5V, TL1519/1518: GND
TL1534/1535: write protection (H:WP,Low: write enable)
2) Write the data before the HDMI inspection with the
checker.
In the HDMI inspection, use a DDC-compatible device.If the EDID has been written,the HDMI input does not function normally.
LC-20D42U
Adjustment procedure
21
LC-20D42U
Repeat until RGB become the target values.
PC Set
Set the light level to MAX with the light control command (SBSL0016 for 45). SBSL0016
Setting is complete. OK
Multi point adjustment mode setting MSET0001
Multi point adjustment mode is set. OK
Initialize adjustment values. MSET0004
Initialization is done. OK
Adjustment gradation setting (point 6 = 232 gradation adjustment*) LEV60232
Pattern display
Adjustment values are set. OK
Adjust RGB to the target xy values. MG6RXXXX MG6GXXXX MG6BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * In order to adjust by reducing the value, set the strongest color as the fixed color. * The default adjustment value of RGB is the parameter value of the LEV6 command multiplied by 2.
The adjustment value is reflected in the image.
Adjustment values are set. OK
Adjustment gradation setting (point 5 = 200 gradation adjustment*) LEV50200
Pattern display
Adjustment values are set. OK
Correction of G value MG5G0800 When G is changed at gradation 6, calculate the ratio of the change and set the following value to XXXX: (the value set with LEV5) x 2 x (the ratio).
Adjustment values are set. OK
22
Start measurement
Repeat until RGB become the target values.
LC-20D42U
PC Set
Adjust RB to the target xy values. MG5RXXXX MG5BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value of the LEV5 command multiplied by 2.
The adjustment value is reflected in the image.
Adjustment values are set. OK
Adjustment gradation setting (point 4 = 170 gradation adjustment*) LEV40170
Pattern display
Adjustment values are set. OK
Correction of G value MG4G0680 When G is changed at gradation 6, calculate the ratio of the change and set the following value to XXXX: (the value set with LEV4) x 2 x (the ratio).
Start measurement
Repeat until RGB become the target values.
Adjustment values are set. OK
Adjust RB to the target xy values. MG4RXXXX MG4BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value of the LEV4 command multiplied by 2.
The adjustment value is reflected in the image.
Adjustment values are set. OK
Adjustment gradation setting (point 3 = 120 gradation adjustment*) LEV30120
Pattern display
Adjustment values are set. OK
Correction of G value MG3G0480 When G is changed at gradation 6, calculate the ratio of the change and set the following value to XXXX: (the value set with LEV3) x 2 x (the ratio).
Adjustment values are set. OK
23
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Start measurement
Repeat until RGB become the target values.
PC Set
Adjust RB to the target xy values. MG3RXXXX MG3BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value of the LEV3 command multiplied by 2.
The adjustment value is reflected in the image.
Adjustment values are set. OK
Adjustment gradation setting (point 2 = 78 gradation adjustment*) LEV20078
Pattern display
Adjustment values are set. OK
Correction of G value MG2G0312 When G is changed at gradation 6, calculate the ratio of the change and set the following value to XXXX: (the value set with LEV2) x 2 x (the ratio).
Start measurement
Repeat until RGB become the target values.
Adjustment values are set. OK
Adjust RB to the target xy values. MG2RXXXX MG2BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value of the LEV2 command multiplied by 2.
The adjustment value is reflected in the image.
Adjustment values are set. OK
Adjustment gradation setting (point 1 = 42 gradation adjustment*) LEV10042
Pattern display
Adjustment values are set. OK
Correction of G value MG1G0168 When G is changed at gradation 6, calculate the ratio of the change and set the following value to XXXX: (the value set with LEV1) x 2 x (the ratio).
24
Adjustment values are set. OK
g
Start measurement
Repeat until RGB become the target values.
LC-20D42U
PC Set
Adjust RB to the target xy values. MG1RXXXX MG1BXXXX *XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is Fixed. * The default adjustment value of RGB is the parameter value of the LEV1 command multiplied by 2.
The adjustment value is reflected in the image.
Adjustment values are set. OK
Writing of adjusted values MSET0003
Writing is complete. OK
Deleting adjustment patterns MSET0000
Deletion is complete. OK
Completion of adjustment
5. Factory settings
After making the factory settings.pull off the AC cord.
NOTE: Do not turn on the power once the factory settings have been made. Otherwise the factory setting must be made again.
Adjustment item
1 Factory settings Finally pull off the AC cord. • Move the cursor to the [INDUSTRY INIT] line. Using the
Adjustment conditions
[VOL+/-] keys. set this item ON and press the [ENT] key. The version confirm window appears on the green screen. When [SUCCESS] appears at the top, the fac­tory settings are complete.(If an error occurs.[ERROR] appears on the red screen.)
• Finally turn off AC power. The following settings are returned to the factory ones.
1) User settings
2) Channel data (broadcast frequencies,etc.)
3) Password setting
4) Operation time
5) Automatic installation flag
6) V-CHIP block setting
Adjustment procedure
6. Software version
The software version will be reported at the Conversion Judgment Meeting. Possible modifications that will follow will be reported using the Modifica­tions Report.
* Main microprocessor
* Monitor microprocessor
* EDID data (HDMI/analo
RGB)
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LC-20D42U
PUBLIC MODE SETTING PROCEDURE
1. How to start Public Mode
There are the following two ways to get the public mode setup screen displayed. 1 In the adjustment process mode, turn on "HOTEL MODE". Also press the "CH (ù)" and "VOL (+)" keys on
the set at once and turn on the power.
2 1) Press the "INPUT" and "VOL (+)" keys on the set at once and turn on the power.
2) Get the password input screen displayed.
Procedure
The input starts with the leftmost digit.
Use the numeric keys [1] thru [9] and [0] key on the remote controller.
The other keys are not acceptable.
With a numeric-key input, "–" will change to " ". The input position will move one digit to the right.
With all the 3 digits entered, the password will be verified.
3) The 3-digit password is now verified. The password [0] [2] [7] provides for the public mode screen. (This screen comes on with whatever adjustment process settings.) With any other passwords, the screen changes to the normal mode.
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LC-20D42U
2. How to exit Public Mode
There are the following ways to quit the public mode setup screen.
Tu rn off "HOTEL MODE" in the adjustment process mode. () ← This way alone is not for quitting the setup screen, but for quitting the mode itself.
Tu rn off the power with the "POWER" key. (★)
Select "EXECUTE". (★)
... "HOTEL MODE" stays on in the adjustment process mode.... The settings will be back to the factory ones.
3. Public Mode Setting Values
With the factory settings made, the public mode settings get initialized. (The adjustment process remains intact.)
4. Public Mode Menu
The guidance is not displayed onscreen. Setup procedure
To move the cursor up and down, use the "cursor UP/DOWN" key (remote controller) and "CH (ù)/(Ù)" key
(remote controller and set).
To change the settings, use the "cursor RIGHT/LEFT" key (remote controller) and "VOL (+)/(–)" key (remote
controller and set).
To save new settings, keep the cursor at "EXECUTE" and use the "ENTER" key (remote controller) .
Public mode
Power on fixed [Variable ]
Maximum volume [ 60 ]
Volume fixed [Variable ]
Volume fixed level [ 60 ]
RC button [Respond ]
Panel button [Respond ]
Menu button [Respond ]
On screen display [Yes ]
Input mode start [Normal ]
Input mode fixed [Variable ]
Reset
EXECUTE
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LC-20D42U
5. On Setting Items
* "EZ-SETUP" discussed below indicates "EZ-SETUP after the first power-on". (1) POWER ON FIXED
Selection Default Explanation
Limit in Setting Exception Remarks
(2) MAXIMUM VOLUME
Selection Default Explanation Limit in Setting
Exception Remarks
Selection between
"Var iable" and "Fixed" (loop provided)
Variable In
"Fixed" setting, the power-off by the power key of the unit is invalidated and the image is kept being
received. The power can be turned off by stopping the power supply from AC. Refer to the
"Power-On Fixed" sheet.
None
Adjustment from 0 to 60 (no loop) 60 Sound volume can not be adjusted higher than the preset value.
When the sound volume is set lower than 59, only figures are displayed and the sound volume bar is not displayed.
The maximum sound volume for ON-timer (Wake up timer) is limited also to the preset value.
None
In line output (sound volume variable), the sound volume can be adjusted from 0 to 60 irrespective of pre­adjusted value.
When the sound volume is set higher than the MAX setting by the adjusting process, the sound volume control operation is prohibited for turn-up and the sound volume should be turned down to MAX in this state.
(3) VOLUME FIXED
Selection Default Explanation Limit in Setting
Exception Remarks
Selection between "Variable" and "Fixed" (loop provided) Variable Sound volume is fixed and made invariable.
None
The sound volume for the ON-timer (Wake up timer) is fixed also without display of menu. Besides, the setting is made impossible. (Basically, the menu is not displayed.) The following keys become invalid:
Sound volume Up/Down (VOL +/-) [for both remote control and the unit]
Mute (MUTE)
In line output (sound volume variable), the sound volume can be adjusted from 0 to 60 irrespective of pre­adjusted value. As for sound volume fixing and sound volume MAX level, the sound volume fixing has priority. Once the sound volume has been changed by adjustment process, it should be set back to the sound volume preset by sound volume fixing level when the adjustment process ends .
28
(4) VOLUME FIXED LEVEL
Selection Default Explanation Limit in Setting Exception Remarks
Adjustment from 1 to 60 (no loop) 60 The sound volume to be fixed by None None Setting is valid only when
(5) R/C BUTTON
Selection Default Explanation Limit in Setting Exception
Remarks
Selection between Respond Keys acceptable by remote control are limited or reception of keys can be prohibited. In
"No respond" setting, all the keys (including the power key) are not accepted.
Adjustment process, factory setting, inspection process and hotel only keys are valid irrespective of setting.
All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
All the keys can be used also in the initial EZ-Setup after power-ON irrespective of setting.
(6) PANEL BUTTON
Selection Default Explanation Limit in Setting Exception
Remarks
Selection between Respond All the operations by keys (except the power key) of the unit can be invalidated.
Inspection mode and hotel menu mode can be started irrespective of setting.
All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
In U.S.A model, all the keys can be used also in the initial EZ-Setup after power-ON irrespective of setting.
LC-20D42U
"Volume fixed" is determined.
"Volume fixed" is selected for "fixed".
"Respond" and "No respond" (loop provide)
"Respond" and "No respond" (loop provide)
(7) MENU BUTTON
Selection Default Explanation
Limit in Setting
Exception
Remarks
Selection between "Respond" and "No respond" (loop provide) Respond In unit are invalidated.
"No respond" setting, the menu operation by the menu key of the remote control and the menu key of the
Inspection mode and hotel menu mode can be started irrespective of setting. All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting. All the keys can be used also in the initial EZ-Setup after power-ON irrespective of setting.
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LC-20D42U
(8) ON SCREEN DISPLAY
Selection Default Explanation
Limit in Setting
Others
Exception
Remarks
Selection between "Ye s " , "NO" (loop provide) Ye s The following OSD displays are made ineffective. Displays of menu group, channel call, sound volume bar and direct key call
ON-timer (Wake-up timer) is cleared and set to "OFF".
Set time of the OFF-timer (SLEEP TIMER) is cleared.
Setting of the no-signal power-OFF (AUTO POWER OFF) is cleared to "OFF".
Setting of the no-operation power-OFF is cleared to "OFF".
Keys falling under any of the following items become invalid.
1Appearance of screen changes and the sound changes. 2Personal functions which are hard to restore.
Screen display, menu, OFF-timer, ON-timer, AV MODE, screen size switching, clock setting, treble emphasis, AUDIO ONLY, sound changeover, LANGUAGE, CLOSED CAPTION
Simple input switching is generated. Those which are restored soon after leaving as they are and may be requested for change by customer are not prohibited. Brightness sensor (BACKLIGHT) .
Such a caution which is displayed independently is displayed as it is. Non-responding signal caution.
When CC has already been ON, CLOSED CAPTION is displayed.
(9) INPUT MODE START
Selection Default Explanation
About options
Limit in Setting Exception Remarks
Selection between Normal In power-ON, the input source to be started or channel can be set. (In standard mode, the operation follows the last memory.)
All the input sources in the model are made selectable.
When the input/output switchable input source is selected and the input source is set to output, the setting of input/output switching is changed to input at the execution of hotel menu. In addition, the input/output switching by menu is prohibited.
In TV mode, the channel to be set follows the last memory and the content of the last memory is included in the notation by options. Ex.) TV (CH2), TV (CH4) etc.
The display of channel setting menu and the channel setting operation are prohibited.
None
In setting at "Normal", the setting of "Input mode fixed" is changed to "Variable" and selection should be prohibited.
(10) INPUT MODE FIXED
Selection Default Explanation
Limit in Setting
Exception Remarks
Selection between – (Variable) The input mode is fixed at the input source or the channel set at the sources and channels can be made non-selectable.
With the execution of hotel mode, the input source is forced to change to that set by "Input mode start" and the channel switching and input switching are prohibited thereafter.
ON-timer's (Wake-up timer) channel items are not displayed or the operation is prohibited. (Basically, they are not displayed.)
The following keys are invalidated. CH '", direct tuning button, FLASHBACK, input ~However, the keys (input switching and CH '" keys) of the unit for menu operation remain valid.
None
In the following case, setting is cancelled and mode is changed to "Var iable". 1When the setting of
"Normal" , "Air/Cable (CH~)", "INPUT 1/2/3","HDMI","HDMI2","DVI" (loop provide)
"Var iable" and "Fixed" (loop provide)
"Input mode start" in 9 and other input
"Input mode start" is set to NORMAL.
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