Sharp LC-C6554U Service Manual

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LC-C6554U

SERVICE MANUAL

No. S38I1LCC6554U

LCD COLOR TELEVISION

MODEL

In the interests of user-safety (Required by safety regulations in some countries) the set should
be restored to its original condition and only parts identical to those specified should be used.

LC-C6554U

OUTLINE

This model is based on the LC-65D64U and is changed some parts. This Service Manual covers the modifications
alone. For the other points, refer to the LC-65D64U (Revised Edition) (No. SY7C3LC65D64U) Service Manual.

CONTENTS

OUTLINE AND DIFFERENCES FROM BASE MODEL

OUTLINE.................................................................... i

LIST OF CHANGED PARTS...................................... i

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY

PRECAUTION........................................................... ii

PRECAUTIONS A PRENDRE LORS DE LA

REPARATION ...........................................................iii

PRECAUTIONS FOR USING LEAD-FREE

SOLDER .................................................................. iv

PRECAUTIONS IN SERVICING THE HDCP-

KEY ROM.................................................................. v

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS .................................................1-1

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL ..........................................2-1

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS ........................................................3-1

CHAPTER 4. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS ...........................4-1

Parts Guide

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-C6554U

i

LC-C6554U

Service Manual

OUTLINE AND DIFFERENCES FROM BASE MODEL

OUTLINE

This model is based on the LC-65D64U and is changed some parts. This Service Manual covers the modifications alone. For the other points, refer to
the LC-65D64U (Revised Edition) (No. SY7C3LC65D64U) Service Manual.

LIST OF CHANGED PARTS

Ref. No. Description

LC-65D64U

Revised Edition

(No. SY7C3LC65D64U)

LC-C6554U

(No. S38I1LCC6554U)

Note

PRINTED WIRING BOARD ASSEMBLIES

TERMINAL Unit DUNTKE208FM01 ← Some parts changed
R/C, LED Unit DUNTKE264FM02 ← Some parts changed
KEY Unit DUNTKE266FM02 ← —
SIDE Unit DUNTKE488FM01 ← —
MAIN Unit DUNTKE558FM01 ← Some parts changed
SUB POWER Unit RDENCA246WJQZ ← —
POWER Unit RDENCA247WJQZ ← —

LCD PANEL

LCD Panel Module Unit R1LK645D3LZ40Z R1LK645D3LZ40V —

TERMINAL Unit
C539 Capacitor VCKYCY1EF104ZY — Delete
C543 Capacitor VCKYCY1EF104ZY — Delete
C547 Capacitor VCAAPF1CJ396MY — Delete
Q501 Transistor VS2SA1530AR-1Y VS2SA1162Y/-1Y Change
Q503 Transistor VS2SA1530AR-1Y VS2SA1162Y/-1Y Change
Q505 Transistor VS2SA1530AR-1Y VS2SA1162Y/-1Y Change
Q509 Transistor VS2SA1530AR-1Y VS2SA1162Y/-1Y Change
Q510 Transistor VS2SC3928AR-1Y VSKTC3875SG-1Y Change
Q1101 Transistor VS2SC3928AR-1Y VSKTC3875SG-1Y Change
Q1102 Transistor VS2SC3928AR-1Y VSKTC3875SG-1Y Change

R/C, LED Unit
Q102 Transistor VS2SC3928AR-1Y VSKTC3875SG-1Y Change
Q103 Transistor VS2SC3928AR-1Y VSKTC3875SG-1Y Change
Q104 Transistor VS2SC3928AR-1Y VSKTC3875SG-1Y Change
Q106 Transistor VS2SC3928AR-1Y VSKTC3875SG-1Y Change
Q107 Transistor VS2SC3928AR-1Y VSKTC3875SG-1Y Change

MAIN Unit
C1619 Capacitor VCKYCZ1EF104ZY — Delete
C1621 Capacitor RC-KZA520WJQZY — Delete
C1631 Capacitor RC-KZA520WJQZY — Delete
C8075 Capacitor VCKYCZ1AB104KY — Delete
C8127 Capacitor VCKYCZ1AB104KY — Delete
C8128 Capacitor VCKYCZ1AB104KY — Delete
IC1403 IC VHiAK4682EQ-1Y VHiAK4682AE-1Y Change
IC1604 IC VHiSii9185+-1Q VHiSii9185A-1Q Change
Q1307 Transistor VS2SA1530AR-1Y VS2SA1162Y/-1Y Change
Q2214 Transistor VS2SC3928AR-1Y VSKTC3875SG-1Y Change
Q9301 Transistor VS2SA1530AR-1Y VS2SA1162Y/-1Y Change
R8012 Resistor VRS-CZ1JF000JY — Delete
R8056 Resistor VRS-CZ1JF000JY — Delete
R8058 Resistor VRS-CZ1JF000JY — Delete
R8141 Resistor VRS-CZ1JF000JY — Delete

CABINET AND MECHANICAL PARTS
Please refer to a Parts list

PACKING PARTS AND ACCESSORIES
Please refer to a Parts list

LC-C6554U

ii

LC-C6554U

Service Manual

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRECAUTION

WARNING

1. For continued safety, no modification of any circuit should be
attempted.

2. Disconnect AC power before servicing.

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 110-240 volt 50/60Hz 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.

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

SAFETY NOTICE

Many electrical and mechanical parts in LCD color television have
special safety-related characteristics.

These characteristics are often not evident from visual inspection, nor
can protection afforded by them be necessarily increased by using
replacement components rated for higher voltage, wattage, etc.

Replacement parts which have these special safety characteristics are
identified in this manual; electrical components having such features

are identified by " " and shaded areas in the Replacement Parts List
and Schematic Diagrams.

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.

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:

CAUTION: FOR CONTI N U E D PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE.

F0001 (250V 15A)
F0003 (250V 1.6A)
F0101 (250V 8A)
F0701 (250V 8A)

DVM

AC SCALE

1.5k ohm
10W

TO EXPOSED
METAL PARTS

CONNECT TO
KNOWN EARTH
GROUND

0.15µF

TEST PROBE

LC-C6554U

iii

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

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.

AVERTISSEMENT

1.

2.

3.

4.

5.

•

•

•

•

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux
conseils suivants.

N'entreprendre aucune modification de tout circuit. C'est danger­eux.

Débrancher le récepteur avant toute réparation.

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.

Inspecter tous les dispositifs de protection comme les boutons de
commande non-métalliques, les isolants, le dos du coffret, les cou­vercles ou blindages de réglage et de compartiment, les réseaux
de résistancecapacité, les isolateurs mécaniques, etc.

S'assurer qu'il n'y ait pas de danger d'électrocution en vérifiant la
fuite de courant, de la facon suivante:

Brancher le cordon d'alimentation directem-ent à une prise de cou­rant de 110-240V 50/60Hz. (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.

PRECAUTION: POUR LA PROTECTION CON­TINUE CONTRE LES RISQUES D'INCENDIE,
REMPLACER LE FUSIBLE

F0001 (250V 15A)
F0003 (250V 1.6A)
F0101 (250V 8A)
F0701 (250V 8A)

VERIFICATIONS CONTRE L'INCEN-DIE ET LE
CHOC ELECTRIQUE

Avant de rendre le récepteur à l'utilisateur, effectuer les vérifica­tions suivantes.

DVM

ECHELLE CA

1.5k ohm
10W

0.15

µ

F

SONDE D'ESSAI

AUX PIECES
METALLIQUES
EXPOSEES

BRANCHER A UNE
TERRE CONNUE

AVIS POUR LA SECURITE

LC-C6554U

iv

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:

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.

Lead-free wire solder for servicing

Indicates lead-free solder of tin, silver and copper. Indicates lead-free solder of tin, silver and copper.

PARTS CODE

PRICE
RANK

PART

DELIVERY

DESCRIPTION

ZHNDAi123250E BL J φ0.3mm 250g (1roll)
ZHNDAi126500E BK J φ0.6mm 500g (1roll)
ZHNDAi12801KE BM J φ1.0mm 1kg (1roll)

LC-C6554U

v

PRECAUTIONS IN SERVICING THE HDCP-KEY ROM

The HDCP-KEY ROM shall be protected and managed for its information inside. In servicing this ROM, therefore, take the following information pro­tection/management measures.

1) When disposing of the component parts and PWBs, destruct the IC itself in a proper way.

(For repairing or replacing the component parts and PWBs as well as clearing those in stock)

2) In storing the component parts, protect and manage them against theft and disclosure.

(For storing the service parts, service units, etc.)

Applied part: HDCP-KEY ROM

IC8451 RH-IXC318WJQZY (updated ROM)

LC-C6554U

1 – 1

LC-C6554U

Service Manual

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS

Item Model: LC-C6554U

LCD panel

65"screen size class Advanced Super View & BLACK TFT LCD
(Diagonal Measurement : 64

33

/64)

"

Resolution 2,073,600 pixels (1,920 1,080)

TV
Function

TV-standard (CCIR) American TV Standard ATSC/NTSC System

Receiving
Channel

VHF/UHF VHF 2-13ch, UHF 14-69ch

CATV 1-135ch (non-scrambled channel only)

Digital Terrestrial
Broadcast (8VSB)

2-69ch

Digital cable

*1

(64/256 QAM)

1-135ch (non-scrambled channel only)

Audio multiplex BTSC System

Audio out 15W 2

Terminals

Rear

INPUT 1 AV in, COMPONENT in

INPUT 2 AV in, S-VIDEO in

INPUT 5 HDMI in with HDCP

INPUT 6 Audio in, HDMI in with HDCP

INPUT 7 15-pin mini D-sub female connector, Audio in (Ø 3.5 mm jack)

ANT/CABLE 75 Unbalance, F Type

1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)

DIGITAL AUDIO OUTPUT

Optical Digital audio output 1 (PCM/Dolby Digital)

OUTPUT Audio out

RS-232C 9-pin D-sub male connector

Side

INPUT 3 AV in, COMPONENT in

INPUT 4 HDMI in with HDCP

SERVICE Software update

OSD language English/French/Spanish

Power Requirement

AC 120 V, 60 Hz (FOR NORTH AMERICA)
AC 110-240 V, 50/60 Hz (FOR OTHERS)

Power Consumption 525 W (0.35 W Standby with AC 120V)

Weight

TV + stand 121.3 lbs./55.0 kg

TV only 110.3 lbs./50.0 kg

Dimension

*2

(W H D)

TV + stand 60

11

/6440 157/8inch

TV only 60

11

/643711/6437/8inch

Operating temperature 32°F to 104°F (0°C to 40°C)

*1

Emergency alert messages via Cable are unreceivable.

*2

The dimensional drawings are shown on the inside back cover.
As part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product
improvement without prior notice. The performance specification figures indicated are nominal values of production units.
There may be some deviations from these values in individual units.

LC-C6554U

2 – 1

LC-C6554U

Service Manual

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL

Part Names

TV (Front)

OPC indicator

POWER indicator

OPC sensor

Remote control sensor

SLEEP indicator

TV (Rear/Side)

INPUT 3
terminals

RS-232C
terminal

DIGITAL AUDIO
OUTPUT terminal

INPUT 6 terminals
(HDMI)

INPUT 7 terminals
(PC-IN)

INPUT 5 terminal
(HDMI)

Antenna/Cable in INPUT 1 terminals

AC INPUT terminal

INPUT 2 terminals

AUDIO OUTPUT
terminals

POWER button

MENU button

INPUT button

Channel buttons
(CH /)

Volume buttons
(VOL /

)

INPUT 4
terminal (HDMI)

SERVICE
terminal

LC-C6554U

2 – 2

Part Names

1

TV POWER: Switch the TV power on or enters standby.

2

DISPLAY: Display the channel information.

3

SOURCE POWER: Turns the power of the external equipment

on and off.

4

External equipment operational buttons: Operate the external

equipment.

5

0_9: Set the channel.

6

(DOT):

7

INPUT:

Select a TV input source. (TV, INPUT 1, INPUT 2, INPUT 3,

INPUT 4, INPUT 5, INPUT 6, INPUT 7)

8

VOL / : Set the volume.

9

SURROUND: Select Surround settings.

10 FREEZE: Set the still image. Press again to return to normal

screen.

11 EXIT: Turn off the menu screen.

12 OPTION: Display the AQUOS LINK MENU screen. This button

will function only when AQUOS LINK is used.

13 REC STOP: Stops one touch recording. This button will function

only when AQUOS LINK is used.

14 SLEEP:Set the sleep timer.

15 AUDIO: Selects the MTS/SAP or the audio mode during multi-

channel audio broadcasts.

16 FUNCTION: Switches the remote control for TV, CBL/SAT, VCR,

DVD and AUDIO operation. Indicator lights up for the current
mode.

*Toenterthecoderegistrationmode,youneedtopress

FUNCTION and DISPLAY at the same time.

17 LIGHT : When this button is pressed, some buttons (for

example, VOL /andCH

/ ) on the remote control unit will
light. The lighting will turn off if no operations are performed within
about 5 seconds. This button is used for performing operations in
low-light situations.

18 VIEW MODE: Select the screen size.

19 ENT: Jumps to a channel after selecting with the 0_9 buttons.

20 FLASHBACK:Return to the previous channel or external input

mode.

21 CH / : Select the channel.

22 MUTE: Mute the sound.

23 MENU: Display the menu screen.

24 ///,ENTER: Select a desired item on the screen.

25 RETURN: Return to the previous menu screen.

26 FAVORITE CH

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.

27 FAVORITE:Set the favorite channels.

28 CC: Display captions from a closed-caption source.

29 AV MODE: Select an audio or video setting.

(When the input source is TV, INPUT 1, 2 or 3: STANDARD,
MOVIE, GAME, USER, DYNAMIC (Fixed), DYNAMIC. When
the input source is INPUT 4, 5, 6 or 7: STANDARD, MOVIE,
GAME, PC, xvYCC (INPUT 4/5/6 only), USER, DYNAMIC (Fixed),
DYNAMIC)

Remote Control Unit

When using the remote control unit, point it at the TV.

3

2

116

5

6

4

8

19

17

18

20

21

7

22

10

9

23

11

13

12

25

26

27

14

15

29

24

28