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.
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.
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 CO NT I N U ED PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE.
F7001 (250V 5A) :
LC-52/60/70LE640U/C6400U
F7003 (250V 6.3A) :
LC-80LE844U,633U
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 0.15µF 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.
Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux
conseils suivants.
A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ
AVERTISSEMENT
1.
N'entreprendre aucune modification de tout circuit. C'est dangereux.
Débrancher le récepteur avant toute réparation.
2.
PRECAUTION: POUR LA PROTECTION CONTINUE CONTRE LES RISQUES D'INCENDIE,
REMPLACER LE FUSIBLE
F7001 (250V 5A) :
LC-52/60/70LE640U/C6400U
F7003 (250V 6.3A) :
LC-80LE844U,LC-60LE633U
•
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.
Inspecter tous les faisceaux de câbles pour s'assurer que les fils
3.
ne soient pas pincés ou qu'un outil ne soit pas placé entre le châssis et les autres pièces métalliques du récepteur.
Inspecter tous les dispositifs de protection comme les boutons de
4.
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 cou-
•
rant 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.
• “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.
NDKEYMF733FM82MAIN Unit (LC-52/60/70LE640U,C6400U,LC-80LE633U)
NDKEYMF953FM01MAIN Unit (LC-80LE844U)
NDUNTKF800FM53KEY Unit
NDUNTKF975FM01LCD CONTROL Unit (LC-52/60/70LE640U,C6400U)
NDUNTKF975FM07LCD CONTROL Unit (LC-80LE633U)
NDUNTKF961FM07LCD CONTROL Unit (LC-80LE844U)
NDUNTKG014FM01ICON Unit (LC-52/60/70LE640U,C6400U)
NDUNTKF770FM02ICON Unit (LC-80LE633U)
NDUNTKF770FM03ICON Unit (LC-80LE844U)
NDUNTKG015FM01R/C OPC Unit (LC-52/60/70LE640U,C6400U)
NDUNTKF494FM01R/C OPC Unit (LC-80LE633U/844U)
NRUNTKA936WJQZWi-Fi Unit
NRUNTKA931WJQZPOWER/DRIVE Unit (LC-52LE640U/C6400U)
NRUNTKA932WJQZPOWER/DRIVE Unit (LC-60LE640U/C6400U)
NRUNTKA933WJQZPOWER/DRIVE Unit (LC-70LE640U/C6400U)
NRUNTKA903WJN1POWER/LED DRIVE Unit (LC-80LE633U/844U)
NRUNTKA819WJQZ3D-IR Unit (LC-80LE844U)
NOTE: • LC-52/60/70LE640U,C6400U
*1 Replace MAIN PWB Units (DKEYMF733FM**) in case of IC8401, IC3303 or IC8455 failure.
*2 Replace LCD CONTROL Units (DUNTKA975FM**) in case of IC5803 failure.
• LC-80LE633U
*1 Replace MAIN PWB Units (DKEYMF733FM**) in case of IC8401, IC3303, IC8455 or IC5803 failure.
• LC-80LE844U
*1 Replace MAIN PWB Units (DKEYMF953FM**) in case of IC3103 failure.
OTHER Unit
Ref No.Parts No.Description
NR1LK520D3GV00Z52" LCD Panel Module Unit (LC-52LE640U/C6400U) (LK520D3GV00Z)
NR1LK600D3GV00Z60" LCD Panel Module Unit (LC-60LE640U/C6400U) (LK600D3GV00Z)
NR1LK695D3GW80D70" LCD Panel Module Unit (LC-70LE640U/C6400U) (LK695D3GW80D)
NR1LK800D3GW10Z80" LCD Panel Module Unit (LC-80LE633U) (LK800D3GW10Z)
NR1LK800D3GW40Z80" LCD Panel Module Unit (LC-80LE844U) (LK800D3GW40Z)
NQCNW-C222WJQZConnecting Cord L=1000mm 80pins, LCD Control to LCD Panel, x22
NQCNW-M580WJQZ
NQCNW-L795WJQZ
NQCNW-L807WJQZConnecting Cord L=1000mm 4pins, Main to LCD Control(PL) (LC-52/60/70LE640U,C6400U)1
NQCNW-G405WJQZConnecting Cord L=1000mm 4pins, Main to LCD Control(PL) (LC-80LE633U)1
NQCNW-L214WJQZConnecting Cord L=1000mm 64pins, LCD Control to LCD Panel (LC-80LE844U)2
NQCNW-M580WJQZConnecting Cord L=1000mm 41pins, Main to LCD Control (LV) (LC-80LE844U)1
NQCNW-M539WJQZConnecting Cord L=1000mm 24-24-4pins, Main to Power to LCD Control(PD) (LC-80LE844U)1
Connecting Cord L=1000mm 41pins, Main to LCD Control (LW) (LC-52/60/70LE640U,C6400U,LC80LE633U)
Connecting Cord L=1000mm 24pins, Main to Power (PD) (LC-52/60/70LE640U,C6400U,LC80LE633U)
• When using the remote control unit, point it at the TV.
1 POWER: Switch the TV power on or enter standby.
2 TV, STB, DVD.VCR, AUDIO: Switches the remote
control for TV, STB, BD, DVD, VCR and AUDIO operation.
* To enter the code registration mode, you need to press
an appropriate button (STB, DVD
DISPLAY at the same time.
3 External equipment operational buttons: Operate the
external equipment.
4OPTION:Display the Link Operation Menu screen. This
button will function only when AQUOS LINK is used.
5 SLEEP: Set the sleep timer.
6 0-9: Set the channel.
٨
7
(DOT)
8CC:Display captions from a closed-caption source.
9AVMODE:Select an audio or video setting.
10 MUTE: Mute the sound.
11 VOL+/-: Set the volume.
12 MENU: Display the menu screen.
13 AAL: Display the TV+Web screen.
14 ˴/˴/˴/˴, ENTER: Select a desired item on the screen.
15 EXIT: Turn off the menu screen.
16 FAVORITE CH: Set the favorite channels.
17 A, B, C, D: Select 4 preset favorite channels in 4 different
categories.
While watching, you can toggle the selected channels by
pressing A, B, C and D.
18 DISPLAY: Display the channel information.
19 POWER (SOURCE): Turns the power of the external
equipment on and off.
20 FREEZE: Set the still image. Press again to return to
normal screen.
21 AUDIO: Selects the MTS/SAP or the audio mode during
multichannel audio broadcasts.
22 ENT: Jumps to a channel after selecting with the 0-9
buttons.
23 FLASHBACK: Return to the previous channel or external
input mode.
24 VIEW MODE: Select the screen size.
25 INPUT: Select a TV input source. (TV, HDMI1, HDMI2,
HDMI3, HDMI4, COMPONENT, VIDEO1, VIDEO2, PC IN,
Home Network (DLNA), USB)
26 CH˴/˴: Select the channel.
27 SmartCentral: Display the application window.
28 RETURN: Return to the previous menu screen.
29 NETFLIX: Display the Netfl ix screen.
30 FAV APP 1, 2, 3: You can assign your favorite
When fixing the Rear Cabinet, be careful not to catch the backlight LED harness, speaker harness and other harnesses in it.
• The hooks on the external wall of the Rear Cabinet are fitted in the Front Cabinet Ass’y. After putting the Rear Cabinet in place, fit the hooks
securely; then tighten the screws.
(Work method of Rear Cabinet fixation)
Rear Cabinet
(Mat parts)
Front Cabinet Ass'y
(Luster parts)
There is a gap without the fingernail fitting in completely only when covering
with Rear Cabinet.
It becomes the factor of a gap increase of Front Cabinet Ass'y/Rear Cabinet
and the Rear Cabinet misregistration.
1. Remove the 4 lock screws and detach the Stand Unit .
2. Remove the 1 lock screw and detach the AC Cord Cover .
3. Disconnect AC wire and detach the AC Cord .
4. Remove the 4 VESA Covers , 9 lock screws , 2 lock screws , 20 lock screws and detach the Rear Cabinet .
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[Precaution when 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.
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Screws for fixing Speaker
and Rear Cabinet
[Precaution when mounting the rear cabinet]
Put the speakers in place with the screen side down, and attach the rear cabinet.
Since the speakers are fixed by the rear cabinet, they cannot be fixed without the rear cabinet.
When fixing the Rear Cabinet, be careful not to catch the backlight LED harness, speaker harness and other harnesses in it.
• The hooks on the external wall of the Rear Cabinet are fitted in the Front Cabinet Ass’y. After putting the Rear Cabinet in place, fit the hooks
securely; then tighten the screws.
(Work method of Rear Cabinet fixation)
Rear Cabinet
(Mat parts)
Front Cabinet Ass'y
(Luster parts)
There is a gap without the fingernail fitting in completely only when covering
with Rear Cabinet.
It becomes the factor of a gap increase of Front Cabinet Ass'y/Rear Cabinet
and the Rear Cabinet misregistration.