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.
[3] Precautions for assembly............................. 4-10
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC-80LE642U
SAFETY PRECAUTION
Service Manual
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: FO R C O N T I N U E D PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE.
F7003 (250V 6.3A)
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 paral-
leled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground.
• 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.
Many electrical and mechanical parts in LCD color television have
special safety-related characteristics.
These characteristics are often not evident from visual inspection, nor
can protection afforded by them be necessarily increased by using
replacement components rated for higher voltage, wattage, etc.
Replacement parts which have these special safety characteristics are
identified in this manual; electrical components having such features
are identified by "" and shaded areas in the Replacement Parts List
and Schematic Diagrams.
For continued protection, replacement parts must be identical to those
used in the original circuit.
The use of a substitute replacement parts which do not have the same
safety characteristics as the factory recommended replacement parts
shown in this service manual, may create shock, fire or other hazards.
i
LC-80LE642U
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux
conseils suivants.
•
AVERTISSEMENT
1.
N'entreprendre aucune modification 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
F7003 (250V 6.3A)
A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ
10 watts en parallèle avec un condensateur de 0.15µF en série
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 5000Ω/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.
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.
5.
S'assurer qu'il n'y ait pas de danger d'électrocution en vérifiant la
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).
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 celles
utilisées dans le circuit d'origine. L'utilisation de pièces qui n'ont pas
les mêmes caractéristiques que les pièces recommandées par l'usine,
indiquées dans ce manuel, peut provoquer des électrocutions, incendies, radiations X ou autres accidents.
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LC-80LE642U
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 °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.
NDKEYMF953FM06MAIN Unit
NDUNTKF975FM18LCD CONTROL Unit
NDUNTKF494FM01R/C OPC Unit
NDUNTKF770FM02ICON Unit
NDUNTKF800FM53KEY Unit
NRUNTKA936WJQZWi-Fi Unit
NRUNTKB096WJQZPOWER/DRIVE Unit
NOTE: *1 Replace MAIN PWB Unit (DKEYMF953FM06) in case of IC3103 and IC3104 failure.
*2 Replace LCD CONTROL PWB Units (DUNTKF975FM18) in case of IC5803(Flash) failure.
OTHER Unit
Ref NO.PARTS CODEDESCRIPTION
NR1LK800D3GW10Z80" LCD Panel Module Unit (LK800D3GW10Z)
IC For Exclusive Use Of The Service
LC-80LE642U
Ref No.Parts No.DescriptionQ’ty
IC2004RH-iXD515WJN7QIC (Monitor Microprocessor)1
Service Jigs
Ref No. PARTS CODEDESCRIPTIONN
NQCNW-C222WJQZConnecting Cord L=1000mm 80pins, LCD Control Unit to LCD Panel Unit, x22
NQCNW-N560WJPZCoConnecting Cord L=650mm 41pins, Main to LCD Control Unit (LW)1
NQCNW-M539WJQZConnecting Cord L=1200mm 24pins, Power Unit Main Unit (PD)1
iv
LC-80LE642U
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS
Service Manual
1 – 1
CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL
LC-80LE642U
Service Manual
2 – 1
LC-80LE642U
2 – 2
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2 – 3
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2 – 4
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS
LC-80LE642U
Service Manual
3 – 1
LC-80LE642U
CHAPTER 4. REMOVING OF MAJOR PARTS
Service Manual
[1] REMOVING OF MAJOR PARTS
1. Removing of Stand Unit and Rear Cabinet Assy.
1. Remove the 4 lock screws and detach the Stand Unit .
2. Disconnect AC wire and detach the AC cord.
3. Remove the 10 lock screws and 26 lock screws and detach the Rear Cabinet Assy .
䎤䎦䎃䎦䏒䏕䏇
2Stand Unit
3
4
[Precautions when mounting and removing the rear cabinet]
If the rear cabinet is removed with the set upright, the speakers may fall; it results in connector disconnection. Therefore, never remove the rear cabinet with the set upright.
Be sure to remove the rear cabinet with the screen side down.
䎾䎤䎦䏀
1
4
4
Rear Cabinet Assy
5
Tighten together with the
Rear Cabinet Assy.
Fix with the 80" LCD Panel Module Unit.
4 – 1
Only one side (outer) can come off.
[How to remove Rear Cabinet Assy]
* Please do following works by 2 persons
Do following works as → → →
1) Please grasp the swelling of a speaker and pull back with pushing down.
Remove one hook under an operation.
LC-80LE642U
2) Put a hand in terminal area and pull it back, and the other hand holds top side of TV set.
The fingernail is surely fixed when Rear cabinet Assy is
firmly pushed, and the gap disappears.
4 – 4
LC-80LE642U
2. Removing of Speaker (L/R) and KEY Unit.
1. Disconnect the SP wire.
2. Remove the 2 lock screws and detach the Speaker (L) , Speaker (R) .
3. Disconnect the RC wire.
4. Detach the KEY Unit Assy .
5. Disconnect the KM wire.
6. Remove the 2 lock screws and detach the Key Button from Key Button Cover .
7. Detach the KEY Unit from Key Button .
MAIN Unit
4
KEY Unit Assy
[SP]
5
7
KEY Unit
[RC]
8
[SP]
31Speaker (R)2
Speaker (L)
[KM]
6 Key Button
1
[How to remove KEY Unit Assy]
1) When you remove KEY Unit Assy, please be sure to remove harness from WH, and to hold the bottom of KEY Unit Assy.
Key Button
Cover
4 – 5
3. Removing of Connectors, 80” LCD Panel Module Unit Assy.
1. Disconnect the following connectors from the MAIN Unit. (LV, PD, UB)
2. Disconnect the following connectors from the POWER/DRIVE Unit. (L1, L2, PD)
3. Disconnect the following connectors from the LCD Control Unit. (PL, LW)
4. Remove the 27 Hooks and detach the 80” LCD Panel Module Unit Assy .
5. Detach the 2 Bottom cover .
Hock
LC-80LE642U
Hock
[L1] [L2]
POWER/DRIVE Unit
[PD]
Hock
[PL]
LCD
Control
Unit
2Bottom cover
MAIN Unit
[PD]
Hock
1 80" LCD Panel
Module
Unit Assy
[LW]
MAIN Unit
[LV]
[UB]
4 – 6
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4. Removing of LCD CONTROL Unit, MAIN Unit, POWER/DRIVE Unit.
1. Remove the 2 Connecting Cords , 2 Ferrite Cores , 6 lock screws and detach the LCD CONTROL Unit .
2. Remove the 2 lock screws and detach the Terminal Angle (Side) .
3. Remove the 6 lock screws and detach the MAIN Unit and Terminal Angle (Bottom) .
4. Remove the 6 lock screws and detach the POWER/DRIVE Unit .
5. Remove the 12 lock screws and detach the 2 Stand Angles .
6. Remove the 16 lock screws and detach the 4 VESA Angle Assys .
POWER/
DRIVE
Unit
Assy
Assy
Stand Angle
11
14
15VESA Angle
14
15VESA Angle
4
13
12
3
10
LCD
Control
Unit
12
2 Ferrite
Core
1 FFC
14
15 VESA Angle Assy
14
15 VESA Angle Assy
13
Stand
Angle
7
7
80" LCD Panel
Module Unit
8
MAIN Unit
6
Terminal
Angle (Side)
5
9
Terminal Angle
(Bottom)
4 – 7
5. Removing of R/C OPC Unit, ICON Unit, Wi-Fi Unit.
1. Detach the R/C OPC Unit .
2. Disconnect the RC wire.
3. Detach the ICON Unit .
4. Disconnect the CI wire.
5. Detach the Wi-Fi Unit .
6. Disconnect the UB wire.
7. Detach the Wi-Fi Attachment .
Front Cabinet Assy
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Wi-Fi Attachment
4
[CI]
[UB]
[RA]
3ICON Unit2 Wi-Fi Unit1 R/C OPE Unit
4 – 8
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[2] The location putting on the heat measure sheet
1. MAIN PWB Unit
PSPAZC871WJKZ
MAIN-CPU COOL(B)
4 – 9
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[3] Precautions for assembly
1. Points to be checked and precautions when servicing the unit
Mount the main PWB Assy on the backlight chassis and check that the EMI-prevention parts are not peeled and twisted from the access holes. (The
EMI-prevention parts, conductive nonwoven fabric gaskets, must be seen from the access holes.)
[Countermeasure]
Attach the conductive nonwoven fabric gaskets on the shielded case on the main PWB.
LANGKD292WJ3W
(TERM ANG INFERIOR)
PMLT-A680WJQZ
(GASKET MShield )
190x5x5.5
LANGKD145WJFW
TERM ANG SIDE
PMLT-A678WJQZ
GASKET
4 – 10
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The following is a drawing mounting the main PWB Assy on the backlight chassis. (The parts indicated by -> are the access holes for confirmation.)
(Main PWB Assy => State where the shielded case and RF terminal angle are mounted on the main PWB)
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LC-80LE642U
CHAPTER 5. ADJUSTMENT
Service Manual
[1] ADJUSTMENT PROCEDURE
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:DKEYMF953FM06
• When replacing the LCD control PWB, perform the VCOM adjustment.
2. Upgrading of each microprocessor software
CAUTION: Never “POWER OFF” the unit when software upgrade is ongoing.
Otherwise the system may be damaged beyond recovery.
2.1. Software version upgrade
The model employs the following software.
• Main software (please use a software version after OKLA_LE857_xxx.USB).
• Monitor microprocessor software (please use a software version after OKLAMxxx.SMB.)
The main software, monitor microprocessor software can be upgraded by using a general-purpose USB Memory.
The followings are the procedures for upgrading, explained separately for the main software, monitor microprocessor software.
2.2. Main software version upgrade
2.2.1 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 or PC with a USB port.
• The file system of a USB memory is FAT. (FAT32 supports)
• Use the USB memory without other functions. (lock and memory reader...etc)
2.2.2 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 OKLA_LE857_xxx.USB for version upgrade to the root directory (folder) of the USB Memory.
NOTE: In the USB Memory drive, do not store other folders or unrelated files, or more than one file for version upgrade.
Now the USB Memory for version upgrade is ready.
5 – 1
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2.2.3 How to upgrade the software
1. Unplug the AC cord.
2. Insert the USB Memory for version upgrade into the service socket.
3. Plug in the AC cord with power button pressed down.
4. After 5 seconds, unpress the power button.
5. After the unit startup, the system upgrade screen as shown below within 20-40 seconds.
Software Update
MAIN Version
SUB MICOM Version
PANEL EEPROM
3D IR MICOM Version
MAIN
SUB MICOM
PANEL EEPROM
3D IR MICOM
26%
SAME VERSION
NO DATA
103U1301111
㧙㧙㧙㧙㧙
㧙㧙㧙㧙
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6. Even a single failure in the process will trigger the upgrade failure screen.
Software Update
MAIN Version
SUB MICOM Version
PANEL EEPROM
3D IR MICOM Version
UPGRADE FAILURE
MAIN
SUB MICOM
PANEL EEPROM
3D IR MICOM
Project ID
NO DATA
NO DATA
㧙㧙㧙㧙㧙
㧙㧙㧙㧙㧙
㧙㧙㧙㧙
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NOTE: In the event of a failure, repeat the upgrade process. If the process repeatedly fails, it is likely that the hardware need fixing.
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.
Software Update
MAIN Version
SUB MICOM Version
PANEL EEPROM
3D IR MICOM Version
UPGRADE SUCCESS
MAIN
SUB MICOM
PANEL EEPROM
3D IR MICOM
100%
SAME VERSION
NO DATA
103U1301111
㧙㧙㧙㧙㧙
㧙㧙㧙㧙
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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.
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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
upgrade”.
Copy the file OKLA_LE857_xxx.USB and OKLAMxxx.SMB. (named temporarily) for monitor microprocessor software version upgrade to the USB
memory.
2.3.1 How to upgrade the software
1. Unplug the AC cord.
2. Insert the USB Memory for version upgrade into the service socket.
3. Plug in the AC cord with power button pressed down.
4. After 5 seconds, unpress the power button.
CAUTION: • The moment this operation is done, the upgrading of the monitor microprocessor software starts. While the upgrade is ongoing, never
5. After the unit startup, the upgrade starts. The power led will blink continuously. Also, an upgrade screen will be shown during a minor upgrade.
power off the unit. Otherwise the upgrade will fail and the system may be serious damaged beyond recovery (inability to start).
• After the monitor microprocessor software is upgraded, also perform the ‘Industry Init’.
Software Update
MAIN Version
SUB MICOM Version
PANEL EEPROM
3D IR MICOM Version
MAIN
SUB MICOM
PANEL EEPROM
3D IR MICOM
NO DATA
50%
NO DATA
㧙㧙㧙㧙㧙
0.820
㧙㧙㧙㧙
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6. If the upgrade fails, power led will stop blinking. Also, the upgrade failure screen will be shown if upgrade screen was shown at 5.
Software Update
MAIN Version
SUB MICOM Version
PANEL EEPROM
3D IR MICOM Version
UPGRADE FAILURE
MAIN
SUB MICOM
PANEL EEPROM
3D IR MICOM
NO DATA
SAME VERSION
NO DATA
㧙㧙㧙㧙㧙
㧙㧙㧙㧙㧙
㧙㧙㧙㧙
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NOTE: In the event of a transient failure, upgrade will be automatically retried up to three times. If the process repeatedly fails, hardware may be the
cause.
7. The upgrade success screen will be shown if upgrade screen was shown at 5.
Software Update
MAIN Version
SUB MICOM Version
PANEL EEPROM
3D IR MICOM Version
UPGRADE SUCCESS
MAIN
SUB MICOM
PANEL EEPROM
3D IR MICOM
NO DATA
100%
NO DATA
㧙㧙㧙㧙㧙
0.820
㧙㧙㧙㧙
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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 mon-
itor microprocessor software version information and panel size information.
5 – 3
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3. Entering and exiting the adjustment process mode
1) Before entering the adjustment process mode, the AV position RESET in the video adjustment menu.
2) While holding down the “VOL (–)” and “INPUT” keys at a time, plug in the AC cord of the main unit to turn on the power.
The letter “<K>” appears on the screen.
3) Next, hold down the “VOL (–)” and “CH ()” keys at a time.
(The “VOL (–)” and “CH ()” keys should be pressed and held until the display appears.)
Multiple lines of blue characters appearing on the display indicate that the unit is now in the adjustment process mode.
When you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure.
4) To exit the adjustment process mode after the adjustment is done, unplug the AC cord from the outlet to make a forced shutdown. (When the
power was turned off with the remote controller, once unplug the AC cord and plug it again. In this case, wait 10 seconds or so before plugging.)
CAUTION: Use due care in handling the information described here lest your users should know how to enter the adjustment process mode. If the
settings are tampered in this mode, unrecoverable system damage may result.
4. Remote controller key operation and description of display in adjustment process mode
1) Key operation
Remote controller keyMain unit keyFunction
CH (/)
CH (/)
VOL (+/–)VOL (+/–)Changing a selected item setting (+1/ –1)
Cursor (UP/DOWN)—————Turing a page (PREVIOUS/NEXT)
Cursor (LEFT/RIGHT)—————Changing a selected line setting (+10/ –10)
INPUT—————Input switching (toggle switching)
ENTER—————Executing a function
*Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.
2) Description of display
Moving an item (line) by one (UP/DOWN)
(1) Current page/
Total pages
1/29TUNERAUTOUSA80_UNDER
MAIN Version
BOOT Version
Monitor / Monitor BOOTVersion
T-CON Version / LED CON Version
NETFLIX ESN
WIDEVINE DEVICE ID
FRC Version
TOUCH SENSOR/IR Micom Version
TEMPERATURE6E
LAMP ERROR
MONITOR ERR CAUSE
NORMAL STANDBY CAUSE
ERROR STANDBY CAUSE
(2) Current selected input
(3) Current color system
0.90 (U 2011/12/05 1 A)
BSMKxxx
0.90 / 0.90
201112052d523c41/478936600000
ERR-1
ERR-1
201112052d523c41
0000/---
0
1) 11 B00000040:302) 11 B00000040:11
3) 11 B00000039:114) 11 B00000025:52
1 RC_STNBY
00000
(4) Destination
(5) LCD Panel size/Speaker type
(6) Adjustment
process menu
header
(7) Parameters
5 – 4
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5. List of adjustment process mode menu
The character string in brackets [ ] will appear as a page title in the adjustment process menu header.
2BOOT Version
3Monitor / Monitor BOOT VersionMonitor and monitor boot software version
4T-CON Version / LED CON VersionLCD controller software version
5NETFLIX ESN
6WIDEVINE DEVICE ID
7FRC Version
8TOUCH SENSOR/IR Micom Version
9TEMPERATUREPanel temperature
10LAMP ERRORNumber of termination due to lamp error
11MONITOR ERR CAUSE
12NORMAL STANDBY CAUSERefer to *1 under the list for details
13ERROR STANDBY CAUSERefer to *2 under the list for details
21INDUSTRY INITInitialization to factory settings
2INDUSTRY INIT(-Public)
3PUBLIC MODEPublic mode
4Center AcutimeAccumulated main operation time
5RESETReset
6Backlight AcutimeAccumulated monitor operation time
7RESETReset
8LAMP ERROR RESETReset LAMP ERROR
9VIC XPOSX-coordinate setting for VIC READ
10VIC YPOSY-coordinate setting for VIC READ
11VIC COLORCollected color data setting for VIC READ
12VIC SIGNAL TYPESignal type setting for VIC READ
13VIC READPicture level acquisition functionLevel appears in green on the upper right
31N358 ALL ADJ(INPUT2)CVBS and TUNER signal level adjustment
2N358 MAIN ADJ(INPUT2)CVBS signal level adjustment
3TUNER DAC ADJTUNER signal level adjustment
4N358 CONTRAST A_GAIN
5N358 CONTRAST D_GAIN
6N358 CONTRAST OFFSET
7TUNER CONTRAST A_GAIN
8TUNER CONTRAST D_GAIN
9TUNER CONTRAST OFFSET
41TUNER VCHIP TEST(69ch)Tuning test and VCHIP test (69ch)
2TUNER VCHIP TEST(7ch)Tuning test and VCHIP test (7ch)
3TUNER VCHIP TEST(10ch)Tuning test and VCHIP test (10ch)
4TUNER VCHIP TEST(15ch)Tuning test and VCHIP test (15ch)
81VCOM ADJVCOM adjustment value
91LEV1Standard value 1Adjustment gradation setting.
2LEV2Standard value 2
3LEV3Standard value 3
4LEV4Standard value 4
5LEV5Standard value 5
6LEV6Standard value 6
101MG1RWB adjustment Point 1, R adjustment valueParameter for six-point adjustment
2MG1GWB adjustment Point 1, G adjustment value
3MG1BWB adjustment Point 1, B adjustment value
4MG1YWB adjustment Point 1, Y adjustment valueQuattron panel Only
5MG2RWB adjustment Point 2, R adjustment value
6MG2GWB adjustment Point 2, G adjustment value
7MG2BWB adjustment Point 2, B adjustment value
8MG2YWB adjustment Point 2, Y adjustment valueQuattron panel Only
9MG3RWB adjustment Point 3, R adjustment value
10MG3GWB adjustment Point 3, G adjustment value
11MG3BWB adjustment Point 3, B adjustment value
12MG3YWB adjustment Point 3, Y adjustment valueQuattron panel Only
111MG4RWB adjustment Point 4, R adjustment valueParameter for six-point adjustment
2MG4GWB adjustment Point 4, G adjustment value
3MG4BWB adjustment Point 4, B adjustment value
4MG4YWB adjustment Point 4, Y adjustment valueQuattron panel Only
5MG5RWB adjustment Point 5, R adjustment value
6MG5GWB adjustment Point 5, G adjustment value
7MG5BWB adjustment Point 5, B adjustment value
8MG5YWB adjustment Point 5, Y adjustment valueQuattron panel Only
9MG6RWB adjustment Point 6, R adjustment value
10MG6GWB adjustment Point 6, G adjustment value
11MG6BWB adjustment Point 6, B adjustment value
12MG6YWB adjustment Point 6, Y adjustment valueQuattron panel Only
9PANEL RANGE LIMIT
10SHORT CHECK MODE
11SHORT CHECK CURRENT
12CURRENT SW
13TEST NETWORK UPDATE
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LC-80LE642U
*1 Details of P1.12 (NORMAL STANDBY CAUSE)
When TV set is powered off due to normal use or product specification, the last cause will be recorded.
The code, character string and description for the standby cause are below.
If you power off by remote, the cause will not be recorded.
CodeCharacter stringDescription
2NO_OPERTNo operation off
3NO_SIGNANo signal off
6SLEEP_TMOff timer
8OFF_232CCommand from RS232C
*2 Details of P1.13 (ERROR STANDBY CAUSE)
When TV set is powered off due to any anomaly detection, the past 5 causes will be recorded.
You can confirm the time those causes occurred and character string in the adjustment process mode menu. (Page 28/29)
The time is accumulated total after TV set is powered on, and the value corresponds to “Center Acutime” in the adjustment process mode menu.
The code, character string and description for the standby cause are below.
If no error has occurred, the code is 0 and the character string is “NO RECORD”.
CodeCharacter stringDescription
1AE_MONITRMonitor trouble detected
1CE_CVICBTDriver boot error
22E_TCNERRSoftware abnormality of LCD controller
48E_MRESETFailure of resetting menu settings (Initial Setup - Reset)
50E_TCNF_ST-CON FPGA status error
54E_TCON_ET-CON hung-up
Monitor ERR STBY table
Outline: Communication/Power failure detected by the monitor microprocessor is stored in EEPROM, and last 4 abnormal
can be confirmed in the Process mode A.
Location: Page 1 of the process mode A: MONITOR ERR CAUSE. “0” if there is no error. It is cleared to 0 on the last page of
the process mode A.
DisplayError description
02Initial communication from the main CPU is not received.Check UART bus between main CPU and sub CPU.
03Only the initial communication is received.
04Until panel information request reception
05Until initialization completion reception
06Until version notification transmission
07Until start-up information notification transmission
08Until start-up information response reception
09Until time-out setting reception
0ARequest time-out
0BRestart time-out during the beginning of time acquisition start-up
0CEnding sequence time-out
0DPreset start-up time-out during completion
0EDownload, start-up time-out
0FTime acquisition time-out
11Regular communication time-out
16Backlight errorSee p.6-5
1AMonitor temperature failure- Check TV setting environment
- Check the other monitor (ref No.)
1EDET_13V failureCheck 13V power line.
1FDET_D3V3 failureCheck D3V3 power line.
21DET_PNLxxV failureCheck T-CON power line
23Error standby request from the main CPUCheck ERROR STANDBY CAUSE (p.5-8)
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LC-80LE642U
6. Special features
* STANDBY CAUSE (Page 1/29)
Display of a cause (code) of the last standby
The cause of the last standby is recorded in EEPROM whenever possible.
Checking this code will be useful in finding a problem when you repair the troubled set.
* EEP SAVE (Page 29/29)
Storage of EEP adjustment value
* EEP RECOVER (Page 29/29)
Retrieval of EEP adjustment value from storage area
1Setting1080i signal• Input 100% color bar signal to Component input.
Color saturation: 100%
100% white0% black
2Running Auto-Adjustment
Program
Select [ COMP33k ADJ(INPUT1)] then press ENTER.
Adjust is finish at display [ COMP33k ADJ(INPUT1) OK].
Component 15K adjustment will be done automatically by set itself.
(AUTO CLAMP 1, parameter will be copy from 33K data)
Select [ ANALOG RGB ADJ] then press ENTER.
Adjust is finish at display [ ANALOG RGB ADJ OK].
• Input NTSC signal to RF Antenna.
Select [ VCHIP TEST(*07ch)] then press ENTER.
(*Select In-house broadcasting signal channel)
Adjust is OK at display [ VM-OK].
(Adjust is NG at display VM-NG)
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LC-80LE642U
9. White balance adjustment
9.1. White balance adjustment (For details about the adjustment procedure, refer to “Kameyama Model Integrated Monitor
WB Adjustment Specification V1.92”.)
Adjustment
point
1Setting1) Change set condition as the below.
2Running Auto-
Adjustment Program
Adjustment conditionsAdjustment procedure
AV MODE: [DYNAMIC]
Backlight: +16
Active Backlight: OFF
Aging Time: Min. 60 minutes
2) Connect White Balance Adjustment equipment to set.
NOTE: Screen adjustment point x=1034pt and y=539pt.
NOTE: In case of WB adjustment, mura set is off by RC232C command. Then do teach-
ing and adjust WB.
[Command]
ADJ mode
KRSW0001
KKT10037
Setting
KY0F0000
0SDS0001
SBSL0016
Multi-point ADJ mode
MREN0000
MSET0001
Point 6
LEV60229
MG6G****
MG6B****
MG6R****
Point 5
LEV50173
MG5G****
MG5B****
MG5R****
Point 4
LEV40133
MG4G****
MG4B****
MG4R****
[Adjustment procedure]
1) Send Adjustment mode code by R/C-Gun.
2) Set 6th point to indicated section, fix most strongest color then adjust White balance
by remain color.
3) Set 5th point to indicated section, set G value to 804xG value of 6th point/928. Then
adjust White Balance by RB.
4) Set 4th point to indicated section, set G value to 600xG value of 6th point/928. Then
adjust White Balance by RB.
5) Set 3rd point to indicated section, set G value to 448xG value of 6th point/928. Then
adjust White Balance by RB.
6) Set 2nd point to indicated section, set G value to 296xG value of 6th point/928. Then
adjust White Balance by RB.
7) Set 1st point to indicated section, set G value to 164xG value of 6th point/928. Then
adjust White Balance by RB.
8) Recording Adjustment value by MSET0003command, then turn off of AC power.
* RGB initial value of 6th point : Setting value 928
* RGB initial value of 1~5point : same as G adjustment value for each section.
(The rest value of RGB adjusted value/4 for each section become to be same)
[Adjustment value]
* White Balance must be matched with Standard set which is provide from ENG.
[LC80LE632U] Teaching Set
Do teaching under mura set off
Mura set off command: MREN0000
[Adjustment standard value]
Measurement by Minolta CA-210
5 – 12
LC-80LE642U
Adjustment
point
Adjustment conditionsAdjustment procedure
Point 3
LEV30116LevelReference valueAdjustment specInspection spec
MG3G****
MG3B****y=0.277
MG3R****
Point 2
LEV20074y=0.277
MG2G****
MG2B****y=0.277
MG2R****
Point 1
LEV10045y=0.277
MG1G****
MG1B****
MG1R****
Writing
MSET0003
Point 6928
Point 5804
Point 4600
Point 3448
Point 2296
Point 1164
RemarksSetting conditions for inspection
After White Balance Adjustment Luminance Spec.
LC-80LE642U:Min 280cd/m2
10. Date Writing of KEY
10.1. EDID data (HDMI analog RGB)(Main Unit: DKEYMF953FM06)
X=0.272
X=0.272
y=0.277
X=0.272
X=0.272
X=0.272
y=0.277
X=0.272
AV MODE: [DYNAMIC] (Reset)
Monochro: ON
Active Backlight: OFF
Aging Time: Min. 60 minutes
• Select [INDUSTRY INIT(+Cause)], Set to [ON] by [+], [-] of [VOL] Button [+], [-], then
press [ENT] key.
Display change to green and show the version.
Process complete at display show [SUCCESS].
(At error, picture become to RED with [ERROR] OSD)
• Turn off the AC power.
Below items initialize by Factory Initialize.
1) User set value
2) Channel data
3) Password
4) Operating time
5) Standby Cause
6) Auto installation flag
7) V-CHIP block setting
13. Writing the inch and model name onto EEPROM
1. Enter the adjustment process mode.
2. Point the cursor to [MODEL NAME] (Page 29/29).
3. Select “LE642U”, and press [Enter] key.
4. "OK" is displayed.
5. Point the cursor to [PANEL SIZE] (Page 29/29).
6. Select "80" and press [Enter] key.
7. Moments later image is displayed.
8. Turn off power
9. Turn on power
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LC-80LE642U
[2] PUBLIC MODE SETTING PROCEDURE
1. How to start Public Mode
• There are the following two ways to get the public mode setup screen displayed.
In the adjustment process mode, turn on “PUBLIC MODE”. Also press the “CH ()” and “VOL (+)” keys on the set at once and turn on the
power.
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] keys 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.
2. How to exit Public Mode
There are the following ways to quit the public mode setup screen.
• Turn off “PUBLIC MODE” in the adjustment process mode. ( ) ← This way alone is not for quitting the setup screen, but for quitting the mode itself.
• Turn off the power with the “POWER” key. ( )
• Select “EXECUTE”. ( )
... “PUBLIC 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.)
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LC-80LE642U
4. Public Mode Menu
The guidance is not displayed on screen.
Setup procedure
• To move the cursor up and down, use the “cursor UP/DOWN” key (remote controller) and “CH ()/()” 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 “ENTER” key (remote controller and set).
PUBLIC MODE
POWER ON FIXED[VARIABLE ]
MAXIMUM VOLUME[60 ]
VOLUME FIXED[VARIABLE ]
VOLUME FIXED LEVEL[20 ]
RC BUTTON[RESPOND ]
PANEL BUTTON[RESPOND ]
MENU BUTTON[RESPOND ]
AV POSITION FIXED[VARIABLE ]
ON SCREEN DISPLAY[YES]
INPUT MODE START[NORMAL]
INPUT MODE FIXED[VARIABLE ]
LOUD SPEAKER[ON]
RC_PATH_THROUGH[OFF]
232C POWON[DISABLE]
PUBLIC MODE[OFF]
RESET
EXECUTE
COPY MODE
5 – 16
[How to use USB clone]
This is the function that copying the one TV's user setting to other TVs or copying previous user setting to itself.(Only same series.)
1. Insert the USB memory to TV.
2. Insert AC code of TV with pushing the “INPUT” and “Vol+” keys which are on the tact key.
3. Enter the passward by using R/C. The passward is “027”.
4. Select “COPY MODE”.
5. The follow guide is displayed. Then select the “TV→USB [Start]”.
LC-80LE642U
6. Follow guide is displayed when it is finished , then select "Reset" . TV will restart.
7. Insert the USB which has the data from TV to another TV or itself.
8. Insert AC code of the TV with pushing the "INPUT" and "Vol+" keys which are on the tact key.
9. Select “COPY MODE”.
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LC-80LE642U
10.The following guide is dispalyed.Then select the “USB→TV [Start]”.
11.Follow guide is displayed when it is finished , then select "Reset" . TV will restart.
12.Comfirm the user setting is copied.
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LC-80LE642U
5. On Setting Items
* “EZ-SETUP” discussed below indicates “EZ-SETUP after the first power-on”.
1) POWER ON FIXED
SelectionSelection between “Variable” and “Fixed” (loop provided)
Default– (Variable)
ExplanationIn “Fixed” setting, the power-off by the power key of the unit is invalidated and the image is kept being received. The power can
Limit in SettingRefer to the “Power-On Fixed” sheet.
ExceptionNone
Remarks• In “Variable” setting, the power operation is in wait for 1 sec. and then turned off when the main power switch is off.
2) MAXIMUM VOLUME
SelectionAdjustment from 0 to 60 (no loop)
Default60
ExplanationSound volume can not be adjusted higher than the preset value.
Limit in Setting• When the sound volume is set lower than 59, only figures are displayed and the sound volume bar is not displayed.
Exception
Remarks• When the sound volume is set higher than the MAX setting by the adjusting process, the sound volume control operation is
3) VOLUME FIXED
be turned off by stopping the power supply from AC.
• The maximum sound volume for ON-timer (Wake up timer) is limited also to the preset value.
prohibited for turn-up and the sound volume should be turned down to MAX in this state.
SelectionSelection between “Variable”, “Fixed”, “ACON (AC CTRL)” and “AC/RCON (AC/RC CTRL)” (loop provided)
DefaultVariable
Explanation• FIXED: Fixed at the level adjusted for a fixed volume.
• AC CTRL: Start-up at the level specified for a fixed volume at ACON.
• AC/RC CTRL: Start-up at the level specified for a fixed volume at start.
Limit in Setting• 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)
Exception• In the item “VOLUME” of adjustment process, the sound volume can be set freely irrespective of this setting.
Remarks• 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.
4) VOLUME FIXED LEVEL
SelectionAdjustment from 1 to 60 (no loop)
Default20
ExplanationThe sound volume to be fixed by “Volume fixed” is determined.
Limit in SettingNone
ExceptionNone
RemarksSetting is valid only when “Volume fixed” is selected for “fixed”.
5) RC BUTTON
SelectionSelection between “Respond”, “No Respond” and “Limited” (loop provided)
DefaultRespond
ExplanationMaking the remote controller settings.
• At the “No Respond” setting, the remote controller keys are disabled. Its power key (reception/standby key) is disabled too.
• At the “Limited” setting, some channel-related keys alone are operative. All the other remote controller keys (power, volume
/, channel /, light control (brightness sensor), broadcast select) are inoperative.
Limit in Setting
Exception• Adjustment process, inspection process and hotel only keys are valid irrespective of setting.
Remarks
In “No respond” setting, all the keys (including the power key) are not accepted.
• All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
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6) PANEL BUTTON
SelectionSelection between “Respond” and “No respond” (loop provided)
DefaultRespond
ExplanationAll the operations by keys (except the power key) of the unit can be invalidated.
Limit in Setting
Exception• Adjustment process, 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.
Remarks
7) MENU BUTTON
SelectionSelection between “Respond” and “No respond” (loop provided)
DefaultRespond
ExplanationIn “No respond” setting, the menu operation by the menu key of the remote control and the menu key of the unit are invali-
dated.
Limit in Setting
Exception• Adjustment process, 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.
Remarks
8) ON SCREEN DISPLAY
SelectionSelection between “Yes”, “No” (loop provided)
DefaultYes
Explanation• At the “No” setting, the following items are not displayed on screen: register, setting, adjustment menu, channel call and
volume bar.
On the wide-screen models, an input selection is immediately made because the menu is not displayed.
• At the “Limited” setting, some items cannot be displayed on screen.
On the Japan-destined models, the channel call “Message” alone cannot be displayed. (This is because the channel call
message may be confused with a message being sent from the hotel.)
On the North America-destined models, the OSD works the same as at the “No” setting.
Limit in Setting• Keys falling under any of the following items become invalid.
Appearance of screen changes and the sound changes.
Personal 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
Others• 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) and PIC. FLIP
Exception• Such a caution which is displayed independently is displayed as it is.
Non-responding signal caution
Remarks• When CC has already been ON, CLOSED CAPTION is displayed.
9) INPUT MODE START
Selection
DefaultNormal
ExplanationIn power-ON, the input source to be started or channel can be set.
About options• All the input sources in the model are made selectable.
Limit in Setting• The display of channel setting menu and the channel setting operation are prohibited.
Exception
Remarks• In setting at “Normal”, the setting of “Input mode fixed” is changed to “Variable” and selection should be prohibited.
(In standard mode, the operation follows the last memory.)
• 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.) Air (2), Cable (98.1) etc.
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LC-80LE642U
10)INPUT MODE FIXED
SelectionSelection between “Variable”, “Fixed”, “ACON (AC CTRL)” and “AC/RCON (AC/RC CTRL)” (loop provided)
Default– (Variable)
Explanation• At the “Fixed” setting, the TV set gets started with the settings of “Input mode start”, and then any other channels and inputs
are not accepted.
• At the “ACON (AC CTRL)” setting, the TV set gets started with the settings of “Input mode start” under AC control.
• At the “AC/RCON (AC/RC CTRL)” setting, the TV set gets started with the settings of “Input mode start” under either control.
Limit in Setting• With the execution of hotel mode, the input source is forced to change to that set by “Input mode start” and the channel
ExceptionNone
Remarks• In the following case, setting is cancelled and mode is changed to “Variable”.
11)RC_PATH_THROUGH
SelectionSelection between “OFF”, “ON: TV RCE” and “ON: TV RCD” (loop provided)
DefaultOFF
ExplanationFunction to feed the remote controller-received signal to Pin 9 (open) on the RS232C.
Limit in SettingNone
ExceptionNone
RemarksNone
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.
When the setting of “Input mode start” is set to “Normal”.
12)AV POSITION FIXED
SelectionSelection between “Variable” and “Fixed” (loop provided)
DefaultVariable
ExplanationIn case of “Fixed” setting,
– Menu “Picture” and “Audio” setting can't be changed like “Dynamic (Fixed)”.
– When “AV Mode” key is pressed, TV just displays current AV Mode (cannot be changed.).
Limit in SettingNone
ExceptionNone
Remarks• When receiving with AV Position key, OPC, Dolby key and other direct audio select keys, the current display stays on and no
setting can be changed.
• Even by initializing personal information, the hotel-mode settings are kept intact. In this way, the AV positions, video and
audio adjustment settings are not initialized.
13)LOUD SPEAKER (ON/OFF)
SelectionSelection between “ON” and “OFF” (loop provided)
DefaultON
ExplanationIf “OFF” is selected, TV stops Speaker output even without Headphone connected.
Limit in SettingNone
ExceptionNone
Remarks• Press the volume UP/DOWN key, and the mute icon appears for 4 seconds.
• The mute key and audio-related keys are displayed with caution.
• Usually, the headphones and monitor audio outputs can be adjustable.
14)232C POWON
SelectionSelection between “Disable” and “Enable” (loop provided)
DefaultDisable
ExplanationIn the standby mode, the power-on by the 232C command is enabled or disabled.
Limit in SettingNone
ExceptionNone
RemarksNone
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LC-80LE642U
15)PUBLIC MODE (ON/OFF)
SelectionSelection between “ON” and “OFF” (loop provided)
DefaultOFF
ExplanationIn case of “ON”, public mode settings are effected.
Limit in SettingNone
ExceptionNone
RemarksThe public-mode settings are operable only when this item is set at ON.
5 – 22
CHAPTER 6. TROUBLESHOOTING TABLE
Service Manual
[1] Failure diagnosis by LED in front of cabinet
START
LC-80LE642U
Is the Center Icon flashing?
No
Is the Center Icon lighting
When AC plug on?
Yes
Is the Backlight lighting?
Yes
Check "Picture does not display.".
Yes
No
No
Check "[2] LED flashing specification at the time of an error (Center icon LED used)".
Check Power-Unit and AC-cable.
Check "LED Backlight does not turn on.".
[2] LED flashing specification at the time of an error (Center icon LED used)
1. Display method
• Since only the center icon LED can be used, slow flashing and fast flashing are combined.
• After recovering from an error, if the same error cannot be generated again, refer to MONITOR ERR CAUSE on the adjustment process mode.
2. LED flashing method
Error flashing
Center icon
400ms
400ms
1600ms
1600ms
300ms
100ms
ON
OFF
Table 1. Concrete flashing pattern
Item
Inverter/Lamp system failureFlashes onceFlashes onceLamp error
Power PWB
failure
(Power failure, etc.)
Flashes twiceStart-up confirmation communication error
Flashes 3 timesRegular communication error
Flashes 5 timesOther communication error
Flashes 3 timesNotification from the main microprocessor (*3)
6 – 1
Cause
LC-80LE642U
3. New method
LED flashing timing chart at the time of an error
100ms400ms1.6sec
1) Inverter/Lamp failure details (Flashes slowly once and flashes fast) Note
Error typeCenter icon LED operation
Lamp failure
Flashes fast once
2) Power failure details (Flashes slowly twice and flashes fast) Note
Error typeCenter icon LED operation
PS_ON
AC_DET failure
Flashes fast once
SM_POW
Main 13V failure
Flashes fast twice
D_POW
Digital 3.3V failure
Flashes fast 3 times
PANEL_POW
Panel 12V failure
Flashes fast 5 times
H: On
L: Off
H: On
L: Off
H: On
L: Off
H: On
L: Off
H: On
L: Off
Pins are monitor microcomputer pins unless otherwise specified.
ERR_PNL: failure(H). Inverter/Lamp error is detected.
Note that after five detection counts, the lamp cannot be
activated except in the adjustment process mode.
Accumulated counts are cleared to 0 by the setting in the
LAMP ERROR RESET on the adjustment process mode.
Pins are monitor microcomputer pins unless otherwise specified.
AC_DET failure (L).
DET_13V failure (L). Main 13V is not applied.
DET_D3V3 failure (L). Digital 3.3V is not applied.
DET_PNL12V failure (L). Panel power is not applied.
6 – 2
3) Communication failure details (Flashes slowly 3 times and flashes fast) Note
LC-80LE642U
Error typeCenter icon LED operation
Initial communication reception failure
Flashes fast once
Start-up confirmation reception failure
Flashes fast twice
Regular communication failure
Flashes fast 3 times
Other communication failure
Flashes fast 5 times
4) Other failure details (Flashes slowly 4 times and flashes fast) Note
Error typeCenter icon LED operation
Monitor temperature
failure
Flashes fast once
Main failure
Flashes fast 3 times
H: On
L: Off
H: On
L: Off
H: On
L: Off
H: On
L: Off
H: On
L: Off
H: On
L: Off
Basically, debug print logs are analyzed or communication logs are analyzed by a bus monitor.
Initial communication from the main CPU is not
received. (Request for the monitor model No. is not
received.)
→ Communication line failure or main CPU start-up failure
Start-up reason confirmation from the main CPU cannot
be received. (Start-up communication until start-up reason notification command is not received.)
→ Main CPU start-up failure or monitor microcomputer
reception failure
Regular communication that is performed at 1 second
intervals in the normal operation is interrupted.
→ Main CPU operation failure or monitor microcomputer reception failure
When a request (PM_REQ=H) is sent from the main
microcomputer, the request command is not output
from the main CPU, etc.
→ Main CPU operation failure or monitor microcomputer reception failure
Pins are monitor microcomputer pins unless otherwise specified.
If the panel temperature is 60°C or more for 15 seconds
or more in a row, CAUTION appears on the OSD
(flashes in red in the lower right screen).
If the panel temperature is 60°C or more for 25 seconds
or more in a row, error standby is activated.
Main microcomputer detection error (CPU temperature
error, etc.)
The details are displayed on page 1 of the adjustment
process mode.
6 – 3
LC-80LE642U
[3] TROUBLESHOOTING TABLE
• LED Backlight does not turn on.
If it is not an error of power supply/LED driver,
It is start-up in the lamp error disregard mode.
Do you start?
YES
When main unit is replaced, does it start normally?
YESNO
Replace main unit.When LCD control unit is replaced, does it start normally?
YES
Replace LCD control unit.
When the parts in the panel can be replaced. →Replace all LED-bars in the panel module.
When the parts in the panel cannot be replaced. →Replace panel module.
If it is not an error of power supply/LED driver,
It is start-up in the lamp error disregard mode.
NO
When power supply unit is replaced, does it start normally?
YES
Replace power supply unit.
When main unit is replaced, does it start normally?
YES
Replace main unit.
When LCD control unit is replaced, does it start normally?
YES
Replace LCD control unit.
When the parts in the panel can be replaced. →Replace all LED-bars in the panel module.
When the parts in the panel cannot be replaced. →Replace panel module.
Do you start?
NO
NO
NO
NO
6 – 4
Trouble Shooting Panel Module
When C-S FPC is replaced, does screen display normally?
Replace C-S FPC.
NO
When C-PWB is replaced, does screen display normally?
Replace C-PWB.
(Adjust “VCOM ADJ” after replace C-PWB)
NO
Replace Panel HIRAKI.
(Adjust “VCOM ADJ” after replace Panel HIRAKI)
If Panel Hiraki is changed, Mura adjustment is needed as well.
LC-80LE642U
YES
YES
6 – 5
LC-80LE642U
• Picture does not display.
Trouble Shooting LCD controller board(C-PWB)
A screen isn't displayed.
(The LED Backlight has shone at start-up)
NO
Please enter the adjustment process mode and display “LCD TEST
PATTERN” of 18 page.
Please press volume (-)/(+) keys and a test pattern is displayed.
Is it all usually displayed?
NO
Is only the half of the right screen or the left screen displayed normally?
NO
Please check the C-PWB.
Replace another board.
• It is checked whether PL/LW is connected correctly.
• Replace another C-PWB.
YES
It isn't the fault of a C-PWB.
Please check operation with reference to other items.
YES
• It is checked whether FFC (to Panel) is connected correctly.
• Replace another C-PWB.
YES
6 – 6
<HDMI input> No video (1)-1
HDMI: No external input video [INPUT-1]
LC-80LE642U
Is INPUT-1 selected on the input select menu screen?NOSelect INPUT-1 on the input select menu screen
YES
Does the HOT PLUG detection function?
Does the DDC5V signal come from pin (18) of SC1501 to pin (60) of IC2601
(HDMI_SW)?
YES
Does the HPD signal come from pin (59) of IC2601 to pin (19) of SC1501?NOCheck the line between the pin (19) of SC1501
YES
Is IC2601(HDMI-SW) accessed by I2C, with HDMI connected, to read the DDC-I2C
SCL/SDA data?
YES
Are there the TMDS signal at input pins of IC3301(CPU)?
YES
Is the T-CON PWB connected?
VBO_LOCKN pin (40) of SC3801 become Low if there is no problem in the connection.
NO
NO
NO
NOCheck the T-CON PWB and harness.
for the right input signal.
Check the line between the pin(18) of SC1501 and
the pin(60) of IC2601.
and the pin (59) of IC2601.
Check the DDC-I2C line and its peripheral circuits.
SC1501 pin(15)(SCL), pin(16)(SDA)
IC2601 pin(58), pin(57)
Check the TMDS line (between SC1501 and
IC2601) and its peripheral circuits.
[IC2601 TMDS input pins]
pin(26/27)(CLK-/+), pin(28/29)(D0-/+), pin(30/
31)(D1-/+), pin(31/33)(D2-/+).
Check the TMDS line (between IC2601 and
IC3301) and its peripheral circuits.
[IC3301 TMDS input pins]
pin(AH35/AH34)(CLK-/+),
pin(AG35/AG34)(D0-/+),
pin(AG37/AG36)(D1-/+),
pin(AF35/AF34)(D2-/+).
Check the I2C line (between IC2601 and IC3301).
IC2601:pin(71)(SCL), pin(70)(SDA)
IC3301:pin(AN12), pin(AP12)
Check IC2601 and its peripheral circuits.
Check IC3301 and SC3801 and their peripheral
circuits in Main PWB.
YES
Are the V-By-One HS signal input to the pin of SC3801?
VBO_CN_TXA+/- (36/37pin), VBO_CN_TXB+/- (32/33pin),
VBO_CN_TXC+/- (28/29pin), VBO_CN_TXD+/- (24/25pin).
YES
Check the panel module and harness.
NOCheck IC3301 and its peripheral circuits.
(IC3501/IC3502/IC3503/IC3504, etc.)
6 – 7
LC-80LE642U
<HDMI input> No video (1)-2
HDMI: No external input video [INPUT-2]
Is INPUT-2 selected on the input select menu screen?NOSelect INPUT-2 on the input select menu screen
for the right input signal.
YES
Does the HOT PLUG detection function?
Does the DDC5V signal come from pin (18) of SC1502 to pin (75) of IC2601
(HDMI_SW)?
YES
Does the HPD signal come from pin (74) of IC2601 to pin (19) of SC1502?NOCheck the line between the pin (74) of IC2601
YES
Is IC2601(HDMI-SW) accessed by I2C, with HDMI connected, to read the DDC-I2C
SCL/SDA data?
NO
NO
Check the line between the pin(18) of SC1502
and the pin(75) of IC2601.
and the pin (19) of SC1502.
Check the DDC-I2C line and its peripheral circuits.
SC1501 pin(15)(SCL), pin(16)(SDA)
IC2601 pin(73), pin(72)
YES
Are there the TMDS signals at input pin of IC3301(CPU)?
YES
Is the T-CON PWB connected?
VBO_LOCKN (40pin) of SC3801 become Low if there is no problem in the connection.
YES
Are the V-By-One HS signal input to the pin of SC3801?
IC2601) and its peripheral circuits.
[IC2601 TMDS input pins]
pin(17/18)(CLK-/+), pin(19/20)(D0-/+), pin(21/
22)(D1-/+), pin(23/24)(D2-/+).
Check the TMDS line (between IC2601 and
IC3301) and its peripheral circuits.
[IC3301 TMDS input pins]
pin(AH35/AH34)(CLK-/+),
pin(AG35/AG34)(D0-/+),
pin(AG37/AG36)(D1-/+),
pin(AF35/AF34)(D2-/+).
Check the I2C line (between IC2601 and
IC3301).
IC2601:pin(71)(SCL), pin(70)(SDA)
IC3301:pin(AN12), pin(AP12)
Check IC2601 and its peripheral circuits.
Check IC3301 and SC3801 and their peripheral
circuits in Main PWB.
(IC3501/IC3502/IC3503/IC3504, etc.)
Check the panel module and harness.
YES
6 – 8
<HDMI input> No video (1)-3
HDMI: No external input video [INPUT-3]
LC-80LE642U
Is INPUT-3 selected on the input select menu screen?NOSelect INPUT-3 on the input select menu screen for
YES
Does the HOT PLUG detection function?
Does the DDC5V signal come from pin (18) of SC1503 to pin (56) of IC2601
(HDMI_SW)?
YES
Does the HPD signal come from pin (55) of IC2601 to pin (19) of SC1503?NOCheck the line between the pin (55) of IC2601 and
YES
Is IC2601(HDMI-SW) accessed by I2C, with HDMI connected, to read the DDC-I2C
SCL/SDA data?
YES
Are there the TMDS signal at input pins of IC3301(CPU)?
YES
Is the T-CON PWB connected?
VBO_LOCKN pin(40) of SC3801 become Low if there is no problem in the connec-
tion.
NO
NO
NO
NOCheck the T-CON PWB and harness.
the right input signal.
Check the line between the pin(18) of SC1503 and
the pin(56) of IC2601.
the pin (19) of SC1503.
Check the DDC-I2C line and its peripheral circuits.
SC1501 pin(15)(SCL), pin(16)(SDA)
IC2601 pin(54), pin(53)
Check the TMDS line (between SC1503 and
IC2601) and its peripheral circuits.
[IC2601 TMDS input pins]
pin(8/9)(CLK-/+), pin(10/11)(D0-/+), pin(12/13)(D1-/
+), pin(14/15)(D2-/+).
Check the TMDS line (between IC2601 and IC3301)
and its peripheral circuits.
[IC3301 TMDS input pins]
pin(AH35/AH34)(CLK-/+), pin(AG35/AG34)(D0-/+),
pin(AG37/AG36)(D1-/+), pin(AF35/AF34)(D2-/+).
Check the I2C line (between IC2601 and IC3301).
IC2601:pin(71)(SCL), pin(70)(SDA)
IC3301:pin(AN12), pin(AP12)
Check IC2601 and its peripheral circuits.
Check IC3301 and SC3801 and their peripheral circuits in Main PWB.
YES
Are the V-By-One HS signal input to the pin of SC3801?
VBO_CN_TXA+/- (36/37pin), VBO_CN_TXB+/- (32/33pin),
Is INPUT-4 selected on the input select menu screen?NOSelect INPUT-4 on the input select menu screen for
YES
Does the HOT PLUG detection function?
Does the DDC5V signal come from pin (18) of SC1504 to pin (51) of IC2601
(HDMI_SW)?
YES
Does the HPD signal come from pin (50) of IC2601 to pin (19) of SC1504?NOCheck the line between the pin (50) of IC2601 and the
YES
Is IC2601(HDMI-SW) accessed by I2C, with HDMI connected, to read the DDCI2C SCL/SDA data?
YES
Are there the TMDS signal at input pins of IC3301(CPU)?
YES
Is the T-CON PWB connected?
VBO_LOCKN (40pin) of SC3801 become Low if there is no problem in the connection.
NO
NO
NO
NOCheck the T-CON PWB and harness.
the right input signal.
Check the line between the pin(18) of SC1504 and the
pin(51) of IC2601.
pin (19) of SC1504.
Check the DDC-I2C line and its peripheral circuits.
SC1501 pin(15)(SCL), pin(16)(SDA)
IC2601 pin(49), pin(48)
Check the TMDS line (between SC1504 and IC2601)
and its peripheral circuits.
[IC2601 TMDS input pins]
pin(99/100)(CLK-/+), pin(1/2)(D0-/+), pin(3/4)(D1-/+),
pin(5/6)(D2-/+).
Check the TMDS line (between IC2601 and IC3301)
and its peripheral circuits.
[IC3301 TMDS input pins]
pin(AH35/AH34)(CLK-/+), pin(AG35/AG34)(D0-/+),
pin(AG37/AG36)(D1-/+), pin(AF35/AF34)(D2-/+).
Check the I2C line (between IC2601 and IC3301).
IC2601:pin(71)(SCL), pin(70)(SDA)
IC3301:pin(AN12), pin(AP12)
Check IC2601 and its peripheral circuits.
Check IC3301 and SC3801 and their peripheral circuits in Main PWB.
YES
Are the V-By-One signal input to the pin of SC3801?
VBO_CN_TXA+/- (36/37pin), VBO_CN_TXB+/- (32/33pin),
VBO_CN_TXC+/- (28/29pin), VBO_CN_TXD+/- (24/25pin).
YES
Check the panel module and harness.
NOCheck IC3303 and its peripheral circuits.
(IC3501/IC3502/IC3503/IC3504, etc.)
6 – 10
No video (2)
COMPONENT: No external input video [INPUT-5]
Is INPUT-5 selected on the input select menu screen?
Is the INPUT-SELECT for the input signal?
NO
Select INPUT-5 on the input select menu screen for the
right input signal.
Does the INPUT-5 COMP1_PLUG detection function?
Check the line between pin (17) of input terminal (J510)
and pin (B29) of IC3301 (CPU).
J510:pin(17)
IC3301:pin(B29)
YES
Are there the COMPONENT video signal inputs at pins(AU26/AP25)(Y)/(AR26)(Pb) and (AP26)(Pr) of IC3301(CPU)?
LC-80LE642U
NO
Check the line between the input terminals of J510 and IC3301.
J510 pin(18)(Y) pin(16)(Pb) pin(15)(Pr)
IC3301 pin(AU26/AP25) pin(AR26) pin(AP26)
YES
Is the T-CON PWB connected?
VBO_HTPDN pin (40) of SC3801 become Low if there is no problem in the connection.
YES
Are the V-By-One HS signal input to the pin of SC3801?
VBO_CN_TXA+/- (36/37pin), VBO_CN_TXB+/- (32/33pin),
VBO_CN_TXC+/- (28/29pin), VBO_CN_TXD+/- (24/25pin).
YES
Check the panel module and harness.
NOCheck the T-CON PWB and harness.
Check IC3301 and SC3801 and their peripheral circuits in Main PWB.
NOCheck IC3301 and its peripheral circuits.
(IC3501/IC3502/IC3503/IC3504, etc.)
6 – 11
LC-80LE642U
No video (3)
COMPOSITE: No external input video [INPUT-6]COMPOSITE: No external input video [INPUT-7]
Is INPUT-6 selected on the input select menu screen?Is INPUT-7 selected on the input select menu screen?
NO
Select INPUT-6 on the input select menu
screen for the right input signal.
NONO
Does the INPUT-6 CVBS1_PLUG detection function?
Check the line between pin(9) of input terminal(J510) and pin(D28) of IC3301(CPU).
J510:pin(9)
IC3301:pin(D28)
YES
Is there the COMPOSITE signal input at pin (AR31) of IC3301
(CPU)?
NO
Check the line between pin (10) of J510
and pin (AR31) of IC3301(CPU).
J510:pin(10)
YES
Is the T-CON PWB connected?
VBO_LOCKN pin(40) of SC3801 become Low if there is no problem in the connection.
IC3301:pin(AR31)
Is there the COMPOSITE signal input at pin (AR30) of IC3301
(CPU)?
NO
Select INPUT-7 on the input select menu
screen for the right input signal.
Does the INPUT-7 CVBS2_PLUG detection function?
Check the line between pin(4) of input terminal(J510)
and pin(E28) of IC3301(CPU).
J510:pin(4)
IC3301:pin(E28)
YES
NO
Check the line between pin (5) of J510 and
pin (AR30) of IC3301(CPU).
J510:pin(9)
YES
NOCheck the T-CON PWB and harness.
IC3301:pin(AR30)
Check IC3301 and SC3801 and their
peripheral circuits in Main PWB.
YES
Are the V-By-One HS signal input to the pin of SC3801?
VBO_CN_TXA+/- (36/37pin), VBO_CN_TXB+/- (32/33pin),
VBO_CN_TXC+/- (28/29pin), VBO_CN_TXD+/- (24/25pin).
YES
Check the panel module and harness.
NOCheck IC3301 and its peripheral circuits.
(IC3501/IC3502/IC3503/IC3504, etc.)
6 – 12
No video (4)
PC: No external input video [INPUT-8]
Is INPUT-8 selected on the input select menu screen?
NO
Select INPUT-8 on the input select menu screen for the right input signal.
Is IC2601 (HDMI-SW) accessed by I2C, with PC connected, to read the VGA_SCL/SDA data?
YES
Are there the video signal inputs at pins (AR24/AT24) (G), (AU24) (B) and (AR25) (R) of IC3301 (CPU)?
Are there the VSYNC/HSYNC signal inputs at pins (AM25) and (AN25) of IC3301?
YES
Is the T-CON PWB connected?
VBO_LOCKN pin (40) of SC3801 become Low if there is no problem in the connection.
Check the DDC-12C line and its peripheral circuits. (IC2601 and its peripherals).
NO
Check the line between SC510 and IC3301,and their peripheral circuits.
NOCheck the T-CON PWB and harness.
LC-80LE642U
Check IC3301 and SC3801 and their
peripheral circuits in Main PWB.
YES
Are the V-By-One HS signal input to the pin of SC3801?
VBO_CN_TXA+/- (36/37pin), VBO_CN_TXB+/- (32/33pin),
No video at UHF/VHF broadcast signal receptionNo video at digital broadcast signal reception
Is the specified TV signal selected on the input select menu screen?
Are there the IF signal at input pins(AT32/AU32)(TUN_IFN/P)
of IC3301(CPU)?
NO
Check the IF signal line between IC3301 and
TU1104, and their peripheral circuits.
Check the Tuner I2C lines.
TU1104:pin(5)(TUN_SCL), pin(4)(TUN_SDA)
IC3301:pin(V35), pin(V34)
YES
Is the T-CON PWB connected?
VBO_LOCKN (40pin) of SC3801 become Low if there is no problem in the connection.
YES
Are the V-By-One HS signal input to the pin of SC3801?
VBO_CN_TXA+/- (36/37pin), VBO_CN_TXB+/- (32/33pin),
VBO_CN_TXC+/- (28/29pin), VBO_CN_TXD+/- (24/25pin).
YES
Check the panel module and harness.
Are there the IF signal at input pins(AT32/AU32)(TUN_IFN/P) of
IC3301(CPU)?
Is there IF-AGC signal at input pin(12) of TU1104?
YES
NO
Check the IF signal line between IC3301 and
TU1104, and their peripheral circuits.
Check the IF-AGC line between pin(U35) of IC3301
and pin(12) of TU1104.
Check the Tuner I2C lines.
TU1104:pin(5)(TUN_SCL), pin(4)(TUN_SDA)
IC3301:pin(V35), pin(V34)
NOCheck the T-CON PWB and harness.
Check IC3301 and SC3801 and their peripheral circuits in Main PWB.
NOCheck IC3301 and its peripheral circuits.
(IC3501/IC3502/IC3503/IC3504, etc.)
6 – 14
No video (6)
MHL:No external input video [INPUT-4] (using MHL Cable with Mobile Phone)
LC-80LE642U
Is INPUT-4 selected on the input select menu screen?
YES
Does the MHL Cable detection function?
Does the CD_SENSE signal (High level) come from pin(2) of SC1504 to
pin(69) of IC2601(HDMI-SW)?
YES
Does the CBUS signal come from pin(50) of IC2601 to pin(19) of
SC1504?
YES
Does the VBUS signal (5V valtage power signal) output from pin(6) of
IC1507 to pin(18) of SC1504?
YES
Are there the TMDS signal at input pin(1/2)(D0-/+) of IC2601(HDMISW)?
YES
Are there the TMDS signal at input pins of IC3301(CPU)?
Select INPUT-4 on the input select menu screen for the right
input signal.
NO
Check the MHL Cable.
Check the line between the pin(2) of SC1504 and the pin(69) of
NO
IC2601.
Check the CBUS line between the pin(19) of SC1504 and the
pin(50) of IC2601, and their peripheral circuits.(Q1507, etc.)
NO
Check the VBUS line between the pin(19) of SC1504 and the
pin(6) of IC1507, and their peripheral circuits.(IC1508, IC1509,
NO
etc)
Check the TMDS line (between SC1504 and IC2601) and its
peripheral circuits.(IC1504, etc.)
NO
Check the TMDS line (between IC2601 and IC3301) and its
peripheral circuits.
YES
Is the T-CON PWB connected?
VBO_LOCKN pin(40) of SC3801 become Low if there is no problem in
the connection.
YES
Are the V-By-One HS signal input to the pin of SC3801?
VBO_CN_TXA+/-(36/37pin), VBO_CN_TXB+/-(32/33pin),
VBO_CN_TXC+/-(28/29pin), VBO_CN_TXD+/-(24/25pin).
YES
Check the panel module and harness.
Check the T-CON PWB and harness.
Check IC3301 and SC3801 and their peripheral circuits in Main
NO
PWB.
Check IC3301 and its peripheral circuits.(IC3501/IC3502/
IC3503/IC3504, etc.)
NO
6 – 15
LC-80LE642U
• Does not sound.
INPUT-6 No audio.INPUT-7 No audio.INPUT-5 No audio.
No audio (1)
Is INPUT-6 selected on the input select
menu screen?
NO
Refer to “: No external input
video [INPUT-6]”.
YES
Is the audio output selected for “VARIABLE” on the menu screen?
NO
Set the audio output to
“FIXED”.
YES
Does the audio signal come from pins (8)
(L) and (7) (R) of input terminal (J510) to
pins (AP34) (L) and (AU36) (R) of IC3301
(CPU)?
NO
Check the line between J510
and IC3301.
YES
Does the digital audio signal come from pins(AR11/AP11/AN9)(CPU_AOBCK/AOLRCK/AOSDATA0) of IC3301(CPU) to pins(6/7/5)(SP_BCLK/
SP_LRCLK/SP_DATA) of IC1703(Audio DSP)?
NO
Check the line between IC3301 and IC1703, and their paripheral circuits.
YES
• About the L/R Speakers.
Does the digital audio signal come from pins (30/21/26/27) of IC1703 (Audio DSP) to pin (5/7/8/6) of IC1902 (AMP for L/R)?
• About the Subwoofer speaker.
Does the digital audio signal come from pins (30/21/26/28) of IC1703 (Audio DSP) to pin (5/7/8/6) of IC1901 (AMP for SW)?
Is INPUT-7 selected on the input select
menu screen?
NO
Refer to “: No external input
video [INPUT-7]”.
YES
Is the audio output selected for “VARIABLE” on the menu screen?
NO
Set the audio output to
“FIXED”.
YES
Does the audio signal come from pins (3)
(L) and (2) (R) of input terminal (J510) to
pins (AR37) (L) and (AT36) (R) of IC3301
(CPU)?
NO
Check the line between J510
and IC3301.
YES
Is INPUT-5 selected on the input select
menu screen?
NO
Refer to “: No external input
video [INPUT-5]”.
YES
Is the audio output selected for “VARIABLE” on the menu screen?
NO
Set the audio output to
“FIXED”.
YES
Does the audio signal come from pins (13)
(L) and (12) (R) of input terminal (J510) to
pins (AT37) (L) and (AT35) (R) of IC3301
(CPU)?
NO
Check the line between J510
and IC3301.
YES
NO
Check IC2701 and its paripheral circuits.(X2701, etc.)
YES
• About the L/R Speakers.
Is the audio output from IC1902 as specified?
• About the Subwoofer Speaker.
Is the audio output from IC1901 as specified?
NO
• About the L/R Speakers.
Check IC1902 and its peripheral circuits.
• About the Subwoofer Speaker.
Check IC1901 and its peripheral circuits.
YES
• About the L/R Speakers.
Check the connector (P1903) L/R speakers and their peripheral circuits.
• About the Subwoofer Speaker.
Check the connector (P1904), subwoofer speaker and their peripheral circuits.
6 – 16
LC-80LE642U
No audio (2)
[PC analog audio input] INPUT-8 No audio.[HDMI analog audio input] INPUT-2 No audio.
Is INPUT-8 selected on the input select menu screen?Is INPUT-2 selected on the input select menu screen?
NO
Refer to “: No external input video [INPUT-8]”.Refer to “: No external input video [INPUT-2]”.
YES
Is the audio output selected for “VARIABLE” on the menu screen?Is the audio output selected for “VARIABLE” on the menu screen?
NO
Set the audio output to “FIXED”.Set the audio output to “FIXED”.
YES
Is the “Terminal Setting” - “Audio select” selected for “Video +
Audio” on the menu screen?
NO
Set the HDMI audio output to "Video+Audio".Set the HDMI audio output to "HDMI+Analog".
YES
Does the digital audio signal come from pins(AR11/AP11/AN9)(CPU_AOBCK/AOLRCK/AOSDATA0) of IC3301(CPU) to pins(6/7/5)(SP_BCLK/
SP_LRCLK/SP_DATA) of IC1703(Audio DSP)?
NO
Check the line between IC3301 and IC1703 and their peripheral circuits.
YES
• About the L/R Speakers.
Does the digital audio signal come from pins (30/21/26/27) of IC1703 (Audio DSP) to pin (5/7/8/6) of IC1902 (AMP for L/R)?
• About the Subwoofer speaker.
Does the digital audio signal come from pins (30/21/26/28) of IC1703 (Audio DSP) to pin (5/7/8/6) of IC1901 (AMP for SW)?
NO
Check IC1703 and its paripheral circuits.(X1701, etc.)
YES
• About the L/R Speakers.
Is the audio output from IC1902 as specified?
• About the Subwoofer Speaker.
Is the audio output from IC1901 as specified?
YES
YES
Is the “Terminal Setting” - “Audio select” selected for “Video + Analog” on the menu screen?
YES
NO
NO
NO
NO
• About the L/R Speakers.
Check IC1902 and its peripheral circuits.
• About the Subwoofer Speaker.
Check IC1901 and its peripheral circuits.
YES
• About the L/R Speakers.
Check the connector (P1903) L/R speakers and their peripheral circuits.
• About the Subwoofer Speaker.
Check the connector (P1904), subwoofer speaker and their peripheral circuits.
6 – 17
LC-80LE642U
No audio (3)
No audio at UHF/VHF broadcast signal reception.No audio at digital broadcast signal reception.
Is TV selected on the input select menu screen?Is TV selected on the input select menu screen?
NO
Refer to “No video at UHF/VHF broadcast signal
reception”.
YES
Is the audio output selected for “VARIABLE” on the menu screen?Is the audio output selected for “VARIABLE” on the menu screen?
NO
Set the audio output to “FIXED”.Set the audio output to "FIXED".
YES
Does the digital audio signal come from pins(AR11/AP11/AN9)(CPU_AOBCK/AOLRCK/AOSDATA0) of IC3301(CPU) to pins(6/7/5)(SP_BCLK/
SP_LRCLK/SP_DATA) of IC1703(Audio DSP)?
NO
Check the line between IC3301 and IC1703, and their paripheral circuits.
YES
• About the L/R Speakers.
Does the digital audio signal come from pins (30/21/26/27) of IC1703 (Audio DSP) to pin (5/7/8/6) of IC1902 (AMP for L/R)?
• About the Subwoofer speaker.
Does the digital audio signal come from pins (30/21/26/28) of IC1703 (Audio DSP) to pin (5/7/8/6) of IC1901 (AMP for SW)?
NO
Check IC1703 and its paripheral circuits.(X1701, etc.)
YES
• About the L/R Speakers.
Is the audio output from IC1902 as specified?
• About the Subwoofer Speaker.
Is the audio output from IC1901 as specified?
YES
YES
NO
Refer to “No video at digital broadcast signal
reception”.
NO
NO
• About the L/R Speakers.
Check IC1902 and its peripheral circuits.
• About the Subwoofer Speaker.
Check IC1901 and its peripheral circuits.
YES
• About the L/R Speakers.
Check the connector (P1903) L/R speakers and their peripheral circuits.
• About the Subwoofer Speaker.
Check the connector (P1904), subwoofer speaker and their peripheral circuits.
6 – 18
No audio (4)
INPUT-1 No audio (HDMI connected)
INPUT-2 No audio (HDMI connected)
INPUT-3 No audio (HDMI connected)
INPUT-4 No audio (HDMI connected or MHL connected)
[INPUT-1 input]
Is INPUT-1 selected on the input select menu screen?
[INPUT-2 input]
Is INPUT-2 selected on the input select menu screen?
[INPUT-3 input]
Is INPUT-3 selected on the input select menu screen?
[INPUT-4 input]
Is INPUT-4 selected on the input select menu screen?
Refer to “: No external input video [INPUT-1/2/3/4]”.
YES
[INPUT-1 input]
If no video appears, refer to “No external input video (HDMI) [INPUT-1]”.
[INPUT-2 input]
If no video appears, refer to “No external input video (HDMI) [INPUT-2]”.
[INPUT-3 input]
If no video appears, refer to “No external input video (HDMI) [INPUT-3]”.
[INPUT-4 input]
If no video appears, refer to “No external input video (HDMI) [INPUT-4]”.
LC-80LE642U
NO
Is the audio output selected for “VARIABLE” on the menu screen?
NO
YES
Does the digital audio signal come from pins(AR11/AP11/AN9)(CPU_AOBCK/AOLRCK/AOSDATA0) of IC3301(CPU) to pins(6/7/5)(SP_BCLK/
SP_LRCLK/SP_DATA) of IC1703(Audio DSP)?
YES
• About the L/R Speakers.
Does the digital audio signal come from pins (30/21/26/27) of IC1703 (Audio DSP) to pin (5/7/8/6) of IC1902 (AMP for L/R)?
• About the Subwoofer speaker.
Does the digital audio signal come from pins (30/21/26/28) of IC1703 (Audio DSP) to pin (5/7/8/6) of IC1901 (AMP for SW)?
YES
• About the L/R Speakers.
Is the audio output from IC1902 as specified?
• About the Subwoofer Speaker.
Is the audio output from IC1901 as specified?
YES
• About the L/R Speakers.
Check the connector (P1903) L/R speakers and their peripheral circuits.
• About the Subwoofer Speaker.
Check the connector (P1904), subwoofer speaker and their peripheral circuits.
Set the audio output to “FIXED”.
NO
Check the line between IC3301 and IC1703 and their peripheral circuits.
NO
Check IC1703 and its paripheral circuits.(X1701, etc.)
NO
• About the L/R Speakers.
Check IC1902 and its peripheral circuits.
• About the Subwoofer Speaker.
Check IC1901 and its peripheral circuits.
6 – 19
LC-80LE642U
No INPUT-1/2/3/4 (HDMI) audio.No audio at digital broadcast signal reception.
No audio signal at Digital Audio Output terminal (Analog sound heard)
If no video appears, refer to “No external input video (HDMI)
[INPUT-1/2/3/4]”.
Is there the SPDIF signal output (CPU_ASPDIF) at pin (AR16) of IC3301 (CPU)?
Check the IC3301 and its peripheral circuits.
YES
Is there the SPDIF signal (OPT_OUT) input at pin (2) of IC503 (SPDIF BUFFER & SPDIF-MUTE)?
Check the line between IC3301 and IC503.
YES
Is there the MUTE signal input at pin (1) of IC503? (usual: High, Mute: Low)
Check the AUDIO_MUTE and their peripheral circuits (Q505, etc.).
YES
Is there the SPDIF signal input at pin (1) of D527 (OPTICAL OUTPUT)?
YESNO
Check the speakers and the optical cable.Check D527 and its peripheral circuits.
No optical output under the following conditions as per HDMI requirements.
* Audio contents protected.
* Audio frequency beyond 48kHz.
* Audio bit length beyond 16bits.
If no video appears, refer to “No video at digital broadcast signal
reception”.
NO
NO
NO
6 – 20
LC-80LE642U
No monitor audio output
Is the audio output from the monitor set at “VARIABLE” or “FIXED” on the menu screen?
NO
Check IC3301 (CPU) and its peripheral circuits.
YES
Are there the audio signal outputs at pins (AN34) (HP_MONITOR_L) and (AN35) (HP_MONITOR_R) of IC3301 (CPU)?
NO
Check IC3301 (CPU) and its peripheral circuits.
YES
Does the audio signal come from pins (2) (MONI_HP_L) and (11) (MONI_HP_R) of IC1702 (Line-out Amplifier) to pins (3) (L) and (2) (R) of J504?
NO
Check the line between IC1702 and J504 and their peripheral circuits.
YES
Check the connector (J504) and their peripheral circuits, and speakers and the Cable.
Check the LINE_MUTE line and its peripheral circuits(Q506/Q510, etc).
No connect network
Does the signal come to 1pin of LAN-jack J9401?
(see fig-1, fig-2)
YES
Does the signal come to AT18 pin of IC3301?
(see fig-2)
YES
Check IC3301 and its peripheral circuits.
LAN-jack J9501fig-1
NOCheck the interface device and peripheral circuits.
(power-LED of hub, LINK-LED of hub)
NOCheck the line between J9401 and IC3301.
Check the LAN-jack J9401.
fig-2
1pin
6 – 21
LC-80LE642U
CHAPTER 7. MAJOR IC INFORMATIONS
Service Manual
[1] MAJOR IC INFORMATIONS
1. MAJOR IC INFORMATIONS
1.1. IC2601 (VHiSii9387A-1Q)
This IC is 5 input and 1 output HDMI port processor.
The TMDS cores run at 2.25Gbps. (Supports video resolutions up to 1080p, 60Hz, 12bit.)
The adaptive equalizer provides long cable support.
This IC has been pre-programmed with HDCP keys.
EDID and DDC support for 5 HDMI/DVI ports and 1 VGA port. (This IC includes 512-byte NVRAM and 256-byte SRAM for 5 HDMI ports and 128-byte
SRAM for VGA port.)
This IC supports the mandatory and several optional 3D formats described in the HDMI 1.4 Specification.
“Audio Return Channel” and “HDMI Ethernet Channel” support for one receiver port.
“MHL” support for resolutions up to 1080i@60Hz can be assigned to any one input port.
When changing this IC, please write EDID (how to write EDID is shown in Chapter 5 and section 10.1).
1.2. IC2004 (RH-iXD515WJN7Q)
The monitor microprocessor is intended to communicate with the main microprocessor and to operate the system.
It also controls power of the entire system.
1.3. IC1901, IC1902 (VHiYDA164EZ-1Y)
The Class-D type digital audio power amplifier YDA164EZ gives maximum continuous output of 10 W/ch or woofer output 15W.
1.4. IC3301 (RH-iXD414WJN1Q)
This LSI is FULL HIGH-DEFINITION 1080P DIGITAL TV SYSTEM-ON-A-CHIP.
It combines a transport de-multiplexer, a high definition video decoder, an AC3 audio decoder, a four-link LVDS transmitter, a V-by-One transmitter,
and an NTSC/PAL/SECAM TV decoder with a 3D comb filter (NTSC/PAL).
It supports Full-HD MPEG1/2/4/H.264/DiviX/VC1/RM/AVS/VP6/VP8 video decoder standards, and JPEG.
Audio support includes a BTSC and a Dolby AC3/MPEG-2 Layer 1, 2, audio decoder.
Two SPDIF output and a pair of analog outputs (L-R) are provided.
The LSI incorporates a complete ARM Cortex-A9 dual core based microprocessor subsystem including caches with bridging to memory and a local
bus, where external peripherals can be attached.
Integrated peripherals include four USB 2.0, three UARTs, counter/timers and GPIO controllers.
It supports ATSC/DVB-T/DVB-C demodulators.
1.5. IC3501, IC3502 (RH-iXD555WJQZQ)
These are 2G-bit (128M x 16bit) DDR3-1600 synchronous DRAM.
1.6. IC3503, IC3504 (RH-iXD555WJQZQ)
These are 2G-bit (128M x 16bit) DDR3-1600 synchronous DRAM.
1.7. IC3103 (RH-iXD584WJQZQ)
The 4G-bit NAND flash memory device stores the main CPU program.
1.8. IC3104 (VHiRV2464Ai-1Y)
This is 64k-bit EEPROM device including the user setting.
1.9. IC2007 (VHiRV2402Ai-1Y)
This is 2k-bit EEPROM device stores the nomitor microprocessor setting.
1.10. IC506 (VHiM3221EiP-1Y)
This IC is a high speed, single-channel RS-232 transceiver interface device that operates from a single 3.3V power supply.
The device provides the electrical interface between an asynchronous communication controller and the serial-port connector.
This device operate at data signaling rates up to 460kbit/s.
All RS-232 (Tout and Rin) and CMOS (Tin and Rout) inputs and outputs are protected against electrostatic discharge (up to +/- 15kV ESD protection).
7 – 1
LC-80LE642U
1.11. IC1702 (VHiAK4201EU-1Y)
This IC is audio amplifier for line-out/head-phone.
1.12. IC1703 (VHiYSS952QZ-1Y)
Audio DSP (YSS952QZ) has digital audio adjustment function (for example, PEQ, bass/treble, balance, bass enhancer, etc.) and adjusts TVs audio
quality.
7 – 2
LC-80LE642U
- MEMO -
7 – 3
CHAPTER 8. OVERALL WIRING/SYSTEM BLOCK DIAGRAM
[1] OVERALL WIRING DIAGRAM
OVERALL WIRING DIAGRAM
J
I
H
LC-80LE642U
Service Manual
G
DKEYMF953FM06
F
E
D
C
B
ICON Unit
A
1
23
8
1097654
Wi-Fi Unit
131119181615141217
8 – 1
LC-80LE642U
[2] SYSTEM BLOCK DIAGRAM
SYSTEM BLOCK DIAGRAM
J
I
H
G
F
E
D
C
B
A
1
23
8
1097654
131119181615141217
8 – 2
PartsGuide
LC-80LE642U
PARTS GUIDE
No. S73B9LC80LE64
LCD COLOR TELEVISION
[1]PRINTED WIRING BOARD
ASSEMBLIES
[2]LCD PANEL MODULE UNIT
[3]CABINET AND MECHANICAL
PARTS
MODEL
CONTENTS
LC-80LE642U
[4]SUPPLIED ACCESSORIES/
PACKING PARTS
[5]SERVICE JIG
(USE FOR SERVICING)
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
LC-80LE642U
NO.PARTS CODE
PRICE
RANK
[1] PRINTED WIRING BOARD ASSEMBLIES
NDKEYMF953FM06BUXMAIN Unit
NDUNTKF975FM18BLXLCD CONTROL Unit
NDUNTKF494FM01AGXR/C OPC Unit
NDUNTKF770FM02AEXICON Unit
NDUNTKF800FM53AEXKEY Unit
NRUNTKA936WJQZAXXWi-Fi Unit
!
NRUNTKB096WJQZXPOWER/DRIVE Unit
[2] LCD PANEL MODULE UNIT
NR1LK800D3GW10ZFKX80" LCD PANEL Unit (LK800D3GW10M)
NQCNW-C222WJQZAWJConnecting Cord L=1000mm 80pins, LCD Control Unit to LCD Panel Unit, x2
NQCNW-N560WJPZAWJConnecting Cord L=650mm 41pins, Main to LCD Control Unit (LW)
NQCNW-M539WJQZBCJConnecting Cord L=1200mm 24pins, Power Unit Main Unit (PD)
No Part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any from or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
Jul. 2013
YK. DS
SHARP CORPORATION
Digital Information Appliance Group
CS Promotion Center
Yaita,Tochigi 329-2193, Japan
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