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 be used.
LC-60C52U
OUTLINE
This model is based on theLC-46D62U/LC-52D62U and partially modified.
For the contents not covered in this Service Manual, accordingly, please refer to the LC-46D62U/LC52D62U (No. S86V8LC52D62U) Service Manual.
CONTENTS
DIFFERENCES FROM BASE MODEL
LIST OF CHANGED PARTS ............................. i
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRE-
CAUTION ......................................................... ii
PRECAUTIONS A PRENDRE LORS DE
LA REPARATION .............................................iii
PRECAUTION FOR USING LEAD-FREE
SOLDER.......................................................... iv
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.
R/C, LED UnitDUNTKD909FM02DUNTKD909FM02No Changes
KEY UnitDUNTKD910FM02DUNTKD910FM02No Changes
MAIN UnitDUNTKD934FM02DUNTKD934FM08No Changes
TERMINAL UnitDUNTKD935FM02DUNTKD935FM08No Changes
POWER SUPPLY UnitRDENCA184WJQZRDENCA184WJQZNo Changes
Refer to the PARTS GUIDE for CABINET PARTS, SUPPLIED ACCESORIES, PACKING PARTS and SERVICE JIGS.
i
LC-60C52U
LC-60C52U
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: FOR CONTINUED PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE.
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 non polarized 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 PartsList 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.
•
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
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).
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.
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.
iii
LC-60C52U
PRECAUTION 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:
L Fa
Indicates lead-free solder of tin, silver and copper.
Indicates lead-free solder of tin, silver and copper.
L F a/a
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.
4. Remove the 16 lock screwsand detach the Rear Cabinet.
1
2
3
4
4
SD Card Cover
1
3
3
2
2
Rear Cabinet
Stand
4 – 1
5. Remove the 12 lock screwsand detach the Bridge Angle and Chassis Fix Angle.
5
LC-60C52U
6. Remove the 8 lock screws8 lock point and detach the Stand St Cover-R.
7. Remove the 4 hook and detach the Stand assist Holder.
8. Remove the 8 lock screwsand detach the Stand Fix Angle.
9. Remove the 7 lock screwsand detach the Main Shield.
6
7
8
5
Bridge AngleBridge Angle
8
5
Chassis
Fix Angle
5
5
5
5
Main Shield
HookHook
Stand Fix Angle
7
6
Stand Assist Holder
7
6
Stand St Cover-R
4 – 2
LC-60C52U
10.Disconnect all the connectors from all the PWBs.
11.Remove the 2 lock screwsand detach the KEY PWB.
10
Top Cover
䬌䎮䎰䬍
Key PWB
10
䬌䎰䎤䬍
䬌䎮䎰䬍
䬌䎩䎦䬍
䬌䎯䎥䬍
䬌䎳䎫䬍
䬌䎳䎧䬍
䬌䎵䎤䬍
䬌䎶䎤䬍
䬌䎶䎳䬍
䬌䎳䎧䬍
䬌䎳䎫䬍
䬌䎯䎤䬍
䬌䎯䎤䬍
䬌䎯䎥䬍
䬌䎯䎦䬍
䬌䎵䎤䬍
䬌䎯䎤䬍
䬌䎯䎦䬍
4 – 3
12.Remove the 1 rivetand the 1 lock screw. Detach the earth plate.
11
12
LC-60C52U
13.Remove the 9 lock screwsand detach the Tray Chassis.
14.Disconnect the 3 connectors (MA, FC, SA) , and COAXIAL Wire.
15.Remove the 2 lock screws, 3 lock screwsand detach the Terminal Angle.
16.Remove the 7 lock screwsand detach the POWER SUPPLY Unit.
17.Remove the 4 lock screwsand detach the TERMINAL PWB.
18.Remove the 4 lock screws, and the spacer, rivetand detach the Heat Sink and MAIN PWB.
19.Disconnect the 2 connectors,and detach the Speaker-L and R.
20.Remove the 2 lock screwsand detach the R/C, LED PWB.
21.Remove the 4 lock screwsand detach the plates.
13
1415
16
17
1819
2021
22
23
18
Heat Sink
19
Spacer
Main PWB
16
18
11
13
14
MA FC SA
Earth
Plate
13
12
Chassis Tray
COAXIAL Wire
15
Power Supply PWB
Terminal Angle
Terminal PWB
17
R/C, LED
Cover
Speaker-RSpeaker-L
20
R/C, LED
PWB
22
21
23
4 – 4
LC-60C52U
22.Remove the 4 lock screwsand detach the LCD Panel Module.
24
23.Remove the 8 lock screwsand detach the Chassis Fix Angle T/B.
25
25
24
Chassis Fix
Angle T/B
24
25
LCD Panel Module
25
24
24
25
4 – 5
PartsGuide
LC-60C52U
PARTS GUIDE
No. S86V8LC52D62U
LCD COLOR TELEVISION
[1]PRINTED WIRING BOARD
ASSEMBLIES
[2]CABINET AND MECHANICAL
PARTS
[3]SUPPLIED ACCESSORIES
MODEL
CONTENTS
LC-60C52U
[4]PACKING PARTS (NOT
REPLACEMENT ITEM)
[5]SERVICE JIGS (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-60C52U
NO.PARTS CODE
PRICE
RANK
NEW
MARK
PAR T
DELIVERY
[1] PRINTED WIRING BOARD ASSEMBLIES
NDUNTKD909FM02AQNXR/C, LED Unit
NDUNTKD910FM02AHNXKEY Unit
NDUNTKD934FM08CQRMAIN Unit
NDUNTKD935FM08BGNXTERMINAL Unit
NRDENCA184WJQZBUNXPOWER SUPPLY Unit (Unit exchange)
No Part of this publication may be reproduced,
stored in a retrieval system, ortransmitted in
any from or by any means, electronic, mechanical,
photocopying, recording, orotherwise, without
prior written permission of the publisher.