Sharp LC-52D85UN, LC-46D85UN Schematic

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LC-52D85UN

SERVICE MANUAL

No. S69Z7LC52D85N

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-52D85UN

CONTENTS

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY

PRECAUTION.....................................................i

PRECAUTIONS A PRENDRE LORS DE

LA REPARATION...............................................ii

PRECAUTIONS FOR USING LEAD-FREE

SOLDER ........................................................... iii

PRECAUTIONS IN SERVICING THE

HDCP-KEY ROM .............................................. iii

CHAPTER 1. OPERATION MANUAL

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

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

[3] DIMENSIONS ................................................ 1-8

CHAPTER 2. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS ................... 2-1

CHAPTER 5. OVERALL WIRING/SYSTEM BLOCK
DIAGRAM

[1] OVERALL WIRING DIAGRAM ......................5-1

[2] SYSTEM BLOCK DIAGRAM .........................5-2

CHAPTER 6. PRINTED WIRING BOARD
ASSEMBLIES

[1] KEY Unit ........................................................6-1

[2] MAIN Unit ......................................................6-2

[3] R/C, LED Unit ................................................6-6

CHAPTER 7. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC

DIAGRAM...................................................... 7-1

[2] KEY Unit ........................................................7-2

[3] MAIN Unit ......................................................7-3

[4] R/C, LED Unit ..............................................7-19

CHAPTER 3. ADJUSTMENT

[1] ADJUSTMENT PROCEDURE ....................... 3-1

[2] PUBLIC MODE SETTING

PROCEDURE .............................................. 3-16

CHAPTER 4. TROUBLESHOOTING TABLE

[1] TROUBLESHOOTING TABLE ....................... 4-1

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.

Parts Guide

This document has been published to be used for
after sales service only.
The contents are subject to change without notice.

LC-52D85UN

LC52D85UN

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 CO NT I N U ED PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE .

F7000 (250V T6.3AH)

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.

(for North America)

• Plug the AC cord directly into a 110-240 volt AC outlet.

(for Others)

• 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.

DVM

AC SCALE

1.5k ohm
10W

0.15µF

TEST PROBE

TO EXPOSED
METAL PARTS

CONNECT TO
KNOWN EARTH
GROUND

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

SAFETY NOTICE

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

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

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

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-52D85UN

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

F7000 (250V T6.3AH)

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). (pour l'Amérique du Nord)

• Brancher le cordon d'alimentation directem-ent à une prise de cou­rant de 110-240V. (Ne pas utiliser de transformateur d'isolation
pour cet essai). (pour les autres régions)

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.

DVM

ECHELLE CA

1.5k ohm
10W

µ

F

0.15

SONDE D'ESSAI

AUX PIECES
METALLIQUES
EXPOSEES

BRANCHER A UNE
TERRE CONNUE

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

AVIS POUR LA SECURITE

De nombreuses pièces, électriques et mécaniques, dans les télévi­seur ACL présentent des caractéristiques spéciales relatives à la sé­curité, qui ne sont souvent pas évidentes à vue. Le degré de protec­tion ne peut pas être nécessairement augmentée en utilisant des
pièces de remplacement étalonnées pour haute tension, puissance,
etc.
Les pièces de remplacement qui présentent ces caractéristiques sont
identifiées dans ce manuel; les pièces électriques qui présentent ces
particularités sont identifiées par la marque " " et hachurées dans la
liste des pièces de remplacement et les diagrammes schématiques.

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

Pour assurer la protection, ces pièces doivent être identiques à 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.

ii

LC-52D85UN

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.

Lead-free wire solder for servicing

PARTS CODE

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

PRICE
RANK

PART

DELIVERY

DESCRIPTION

PRECAUTIONS IN SERVICING THE HDCP-KEY ROM

Applied part: HDCP-KEY ROM

IC8451 RH-IXC622WJQZY (updated 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.)

iii

LC52D85UN

CHAPTER 1. OPERATION MANUAL

Service Manual

[1] SPECIFICATIONS

Item Model: LC-52D85UN

1

LCD panel

52" Class (52
Advanced Super View & BLACK TFT LCD

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

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

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

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

TV
Function

Receiving
Channel

Digital Terrestrial
Broadcast (8VSB)

Digital cable

*1

(64/256 QAM)

2-69ch

1-135ch (non-scrambled channel only)

Audio multiplex BTSC System

Backlight 60,000 hours (at Backlight Standard position)

Audio out 10W x 2

INPUT 1 AV in, COMPONENT in

INPUT 2 COMPONENT in, S-VIDEO in

INPUT 4 ANALOG RGB (PC) in (15-pin mini D-sub female connector), Audio in (Ø 3.5 mm jack)

INPUT 6 HDMI in with HDCP, Audio in (Ø 3.5 mm jack)

INPUT 7 HDMI in with HDCP

INPUT 8 HDMI in with HDCP

Rear

INPUT 9 HDMI in with HDCP

Terminals

ANT/CABLE 75 Unbalance, F Type x 1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)

AUDIO Audio in (Ø 3.5 mm jack)

DIGITAL AUDIO OUTPUT

Optical Digital audio output x 1 (PCM/Dolby Digital)

OUTPUT Audio out

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

INPUT 3 AV in

Side

INPUT 5 HDMI in with HDCP

SERVICE Software update

OSD language English/French/Spanish

Power Requirement AC 120 V, 60 Hz

Power Consumption 290 W (0.4 W Standby with AC 120 V)

Weight

Dimension

*2

(WxHxD)

Operating temperature

*1

Emergency alert messages via Cable are unreceivable.

*2

The dimensional drawings are shown on the inside back cover.

TV + stand 61.7 lbs./28.0 kg

TV only 51.8 lbs./23.5 kg

TV + stand

TV only

19

49

/64x3325/64x1261/64inch

19

49

/64x3111/32x325/32inch

+32°F to +104°F (0°C to +40°C)

• 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.

/32"Diagonal)

LC-52D85UN

Optional Accessory

The listed optional accessory is available for the Liquid
Crystal Television. Please purchase it at your nearest shop.

• Additional optional accessories may be available in the near
future. When purchasing, please read the newest catalogue for
compatibility and check the availability.

1 – 1

Part name Model number

Wall mount bracket AN-52AG4

LC-52D85UN

[2] OPERATION MANUAL

Part Names

TV (Front)

* OPC: Optical Picture Control

TV (Rear/Side)

POWER

button

Remote control sensor

OPC sensor

POWER indicator
OPC indicator

*

MENU

button

INPUT

button

Channel
buttons
(CH /)

Volume

buttons

(VOL /)

INPUT 5
terminal
(HDMI)

AC INPUT
terminal

INPUT 7 terminal
(HDMI)

INPUT 9 terminal
(HDMI)

INPUT 8 terminal
(HDMI)

DIGITAL AUDIO
OUTPUT terminal
AUDIO OUTPUT
terminals

Antenna/Cable in

INPUT 1 terminals

INPUT 3
terminals

INPUT 4 terminal (PC-IN)

SERVICE
terminal

• The illustrations in this operation manual are for explanation purposes and may vary slightly from the actual operations.

AUDIO terminal (shared for INPUT 4 and INPUT 6)

INPUT 6 terminal (HDMI)

INPUT 2 terminals

RS-232C terminal

1 – 2

Part Names

LC-52D85UN

Remote Control Unit

117

2
3

4

5

6

7

8

9

10

11

12
13

14

15

16

18

19

20

21

22

23

24

25

26

27

28
29

30

1 TV POWER: Switch the TV power on or enter 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.

50 Set the channel.–9:

6 • (DOT):

7INPUT:Select a TV input source. (TV, INPUT 1, INPUT 2, INPUT

3, INPUT 4, INPUT 5, INPUT 6, INPUT 7, INPUT 8, INPUT 9)

8 VOL / : Set the volume.

9 POWER SAVING: Select Power Saving 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 SURROUND: Select Surround settings.

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

channel audio broadcasts.

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

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

* To enter the code registration mode, you need to press

FUNCTION and DISPLAY at the same time.

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

example, VOL /
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.

19 VIEW MODE: Select the screen size.

20 ENT: Jumps to a channel after selecting with the 0–9 buttons.

21 FLASHBACK: Return to the previous channel or external input

mode.

22 CH / : Select the channel.

23 MUTE: Mute the sound.

24 MENU: Display the menu screen.

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

26 RETURN: Return to the previous menu screen.

27 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

28 FAVORITE: Set the favorite channels.

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

30 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, 7, 8 or 9: STANDARD, MOVIE,
GAME, PC, USER, DYNAMIC (Fixed), DYNAMIC)

and CH / ) on the remote control unit will

D.

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

1 – 3

LC-52D85UN

QUICK REFERENCE

Attaching the Stand

• Before attaching (or detaching) the stand, unplug the AC cord from the AC INPUT terminal.

• Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being damaged.

CAUTION

• Attach the stand in the correct direction.

• Do not remove the stand from the TV unless using an optional wall mount bracket to mount it.

• Be sure to follow the instructions. Incorrect installation of the stand may result in the TV falling over.

1 Confirm that there are 8 screws (4 short screws

and 4 long screws) and a hex key supplied with the
stand unit.

2 Attach the supporting post for the stand unit onto

the base using the box for the stand unit as shown
below.

The supporting post attaches to the base at an off-centered

•
location on the base. Be sure to attach the supporting post in
the direction indicated below and attach the stand to the TV
with the wider side of the base facing forward.

Long screws

Forward

Hex key

3 Insert the stand into the openings on the bottom

1

of the TV.

2

Insert and tighten the 4 short screws into the 4
holes on the rear of the TV.

Hex key

2

• To detach the stand, perform the steps in reverse order.

Short screws

Soft cushion

1

2

1

1 – 4

LC-52D85UN

Appendix

Removing the Stand

•

Before detaching (or attaching) the stand, unplug the AC cord from the AC INPUT terminal.

CAUTION

• Do not remove the stand from the TV unless using an optional wall mount bracket to mount it.

Before attaching/detaching the stand

• Before performing work, make sure to turn off the TV.

• Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being
damaged.

1 2

Unfasten the four screws used to secure the stand in
place.

• To attach the stand, perform the above steps in reverse order.

Hex key

Detach the stand from the TV. (Hold the stand so it
will not drop from the edge of the base area.)

Setting the TV on the Wall

CAUTION

• This TV should be mounted on the wall only with the wall mount bracket AN-52AG4 (SHARP). The use of other wall
mount brackets may result in an unstable installation and may cause serious injuries.

• Installing the TV requires special skill that should only be performed by qualified service personnel. Customers
should not attempt to do the work themselves. SHARP bears no responsibility for improper mounting or mounting
that results in accident or injury.

Using an optional bracket to mount the TV

•

You can ask a qualified service professional about using an optional AN-52AG4 bracket to mount the TV on the wall.

• Carefully read the instructions that come with the bracket before beginning work.

Hanging on the wall

AN-52AG4

wall mount bracket.

(See the bracket instructions for details.)

About setting the TV angle

°

0

2

/

5

1

/

0

1

/

5

/

0

LC-52D85UN

• The center of the display:

19

/64inch (7.3 mm) under

the“f”position.

• Refer to the operation
manual of AN-52AG4 for
details.

Vertical mounting Angular mounting

• Detach the cable clamp on the rear of the TV when using the optional mount bracket.

• To use this TV mounted on a wall, remove the covers at the 4 locations on the rear of the TV, and then use the screws
supplied with the wall mount bracket to secure the bracket to the rear of the TV.

1 – 5

LC-52D85UN

Appendix

Troubleshooting

Problem

• No power

• Unit cannot be operated.

• Remote control unit does not
operate.

• Picture is cut off/with sidebar
screen.

• Strange color, light color, or color
misalignment

• Power is suddenly turned off.

•Nopicture

Possible Solution

• Check if you pressed TV POWER on the remote control unit. If the
indicator on the TV does not light up, press POWER on the TV.

• Is the AC cord disconnected?

• Has the power been turned on?

• External influences such as lightning, static electricity, may cause improper operation.
In this case, operate the unit after first turning off the power of the TV or unplugging
the AC cord and replugging it in after 1 or 2 minutes.

•IstheFUNCTION set correctly? Set it to the TV setting position.

• Are batteries inserted with polarity ( , ) aligned?

• Are batteries worn out? (Replace with new batteries.)

• Are you using it under strong or fluorescent lighting?

• Is a fluorescent light illuminated near the remote control sensor?

• Is the image position correct?

• Are screen mode adjustments such as picture size made correctly?

• Adjust the picture tone.

• Is the room too bright? The picture may look dark in a room that is too bright.

• Is the sleep timer set?

• Check the power control settings.

• The unit's internal temperature has increased. Remove any objects blocking vent or
clean.

• Is connection to other components correct?

• Is correct input signal source selected after connection?

• Is the correct input selected?

• Is picture adjustment correct?

• Is “On” selected in “Audio Only”?

• Is a non-compatible signal being input?

• No sound

• The TV sometimes makes a
cracking sound.

• Is the volume too low?

• Is “Variable” selected in “Output Select”?

• Have you pressed MUTE on the remote control unit?

• This is not a malfunction. This happens when the cabinet slightly expands and
contracts according to change in temperature. This does not affect the TV's
performance.

Troubleshooting-Digital Broadcasting

The error message about reception of broadcast

The example of an error message

displayed on a screen

• Failed to receive broadcast.

• No broadcast now.

Error code

E202

E203 • Check the broadcast time in the program guide.

• Check the antenna cable. Check that the antenna is correctly
setup.

Possible Solution

Cautions regarding use in high and low temperature environments

• When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed
This is not a malfunction, and the unit will recover when the temperature returns to normal.

• Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a
heater, as this may cause the cabinet to deform and the Liquid Crystal panel to malfunction.
Storage temperature: -4°F to +140°F (-20°C to +60°C)

1 – 6

On-Screen Display Menu

Menu Items

LC-52D85UN

For TV/INPUT 1/2/3 Mode

Picture Menu

OPC
Backlight
Contrast
Brightness
Color
Tint
Sharpness
Advanced

C.M.S.-Hue
C.M.S.-Saturation
C.M.S.-Value
Color Temp.
Fine Motion Enhanced
Active Contrast
Gamma Adjustment
Film Mode
Digital Noise Reduction
3D-Y/C
Monochrome
Range of OPC

Reset

Audio Menu

Treble
Bass
Balance
Surround
Bass Enhancer
Reset

Power Control Menu

Power Saving
No Signal Off
No Operation Off

For HDMI/PC-IN Mode

Picture Menu

OPC
Backlight
Contrast
Brightness
Color
Tint
Sharpness
Advanced

C.M.S.-Hue
C.M.S.-Saturation
C.M.S.-Value
Color Temp.
Fine Motion Enhanced
Active Contrast
Gamma Adjustment
Film Mode
Digital Noise Reduction
Monochrome
Range of OPC

Reset

Audio Menu

Treble
Bass
Balance
Surround
Bass Enhancer
Reset

Power Control Menu

Power Saving
No Signal Off
No Operation Off

Setup Menu

EZ Setup
CH Setup
Antenna Setup-DIGITAL
Input Skip
Input Label
Parental CTRL
Position
Language
Reset

Option Menu

AQUOSLINKSetup
Audio Only
Input Select
PC Audio Select
Output Select
Color System
Caption Setup
Digital Caption Info
Program Title Display
Favorite CH
Game Play Time
Operation Lock Out
Demo Mode

Digital Setup Menu

Audio Setup
Identification
Software Update

Setup Menu

Input Skip
Auto Sync.
Input Label
Fine Sync.
Position
Language
Reset

Option Menu

AQUOSLINKSetup
Audio Only
HDMI Setup
PC Audio Select
Output Select
Game Play Time
Operation Lock Out
Demo Mode

Digital Setup Menu

Software Update

Some menu items may not be displayed depending on the selected input source.•

1 – 7

LC-52D85UN

[3] DIMENSIONS

(848)

(796)

64

32

/

/

25

11

33

31

32

/

3

(53)

2

49

459/16(1157)

19

/64(1252)

41

64

/

25

(651)

(474)

64

/

43

18

Unit: inch (mm)

2121/32(550)

32

/

23

5

(400)

4

/

3

15

(145)

153/4(400)

27

4

(123)

25

/

32

3

/

32

(96)

61

12

/

64

(329)

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CHAPTER 2. REMOVING OF MAJOR PARTS

Service Manual

[1] REMOVING OF MAJOR PARTS

1. Removing of Stand Unit and Rear Cabinet Ass’y.

1. Remove the 4 lock screws and detach the Stand Unit.

2. Remove the 4 VESA Hole Covers .

3. Remove the 1 lock screw .

4. Remove the 1 lock screw .

5. Remove the 12 lock screws and detach the Rear Cabinet Ass’y.

Rear Cabinet Ass'y

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5

Front Cabinet Ass'y

2

4

1

Stand Unit

3

2 – 1

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2. Removing of Bottom Cover, Speaker-L/R, R/C, LED Unit, KEY Unit Ass’y.

1. Remove the 1 lock screw and detach the Bottom Cover.

2. Disconnect SP-Wire and detach the Speaker-L/R.

3. Detach the R/C, LED Unit, and disconnect RA-Wire .

4. Detach the KEY Unit Ass'y .

5. Detach the KEY Unit from the KEY Button Cover, and disconnect KM-Wire .

4

KEY Unit Ass'y

KEY Unit

KEY Button
Cover

5

KM

Speaker-R

SP

2

RA

3

SP

R/C, LED Unit

2

RA

3

SP

Speaker-L

2

Bottom Cover

1

2 – 2

3. Removing of Side AV Cover, Main Shield.

1. Remove the 2 lock screws and detach the Side AV Cover.

2. Remove the 5 lock screws , 4 lock shafts , 4 lock screws , 2 lock screws and detach the Main Shield.

2

4

5

3

Main Shield

Side AV Cover

1

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4. Removing of Connectors.

1. Disconnect all the connectors from all the PWBs.

KM

1

LB2

LA

LP

PD

PL

LW

LP

LB1
PD

PL

LB2

1

1

LA

1

LW

2 – 4

5. Removing of Heat Sink Ass’y, MAIN Unit, POWER Unit.

1. Remove the 3 lock screws and detach the Heat Sink Ass'y.

2. Remove the 9 lock screws and detach the MAIN Unit.

3. Remove the 6 lock screws and detach the POWER Unit Ass'y.

4. Remove the 5 lock screws and detach the POWER Unit from the Power PWB Holder.

MAIN Unit

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1

Heat Sink Ass'y

4

2

Power PWB Holder

3

POWER Unit

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6. Removing of Main Fix Angle, Panel Support Angle, Control Shield and LCD Panel Module Unit.

1. Remove the 14 lock screws and detach the Panel Support Angle.

2. Remove the 4 lock screws and detach the Control Shield.

3. Remove the 6 lock screws and detach the LCD Panel Module.

4. Remove the 8 lock screws and detach the Corner Lug.

5. Remove the 2 lock screws and detach the Center Lug.

4

Corner Lug

LCD Panel Module

1

Panel Support Angle

1

Control Shield

3

2

3

4

Corner Lug

Corner Lug

4

Corner Lug

5

5

Center Lug

3

3

3

3

4

2 – 6

7. Removing of LCD Panel Module.

1. Remove the 16 lock screws , 2 lock screws and detach the Bezel Ass’y .

2. Detach the Lens Sheet and Diffusion Plate .

3. Detach the 2 pieces Lamp Holder Unit , Socket and detach the following 18 pieces Lamp from BL Chassis Ass'y .

BL Chassis Ass'y

9

Socket

8

Lamp Holder Unit

6

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7

1

1

3

Bezel Ass'y

5

4

Lens Sheet

Lamp

Diffusion Plate

Lamp Holder Unit

6

2

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LC52D85UN

CHAPTER 3. 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: DUNTKE833FM07

• 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 HLNAC300.USB.)

• Monitor microprocessor software (please use a software version after HLNAVC03.USB and HLNAM300.BIN.)

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 HLNACxxx.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.

2.2.3 How to upgrade the software

1. Unplug the AC cord.

2. Insert the USB Memory for version upgrade (prepared as above) into the service socket located Right side of Main Board terminals, under INPUT3
terminal.

3. Plug in the AC cord with power button pressed down after 5 seconds, unpress the power button.

4. After the unit startup, the system upgrade screen as shown below appears within 20-40 seconds.

3 – 1

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5. Even a single failure in the process will trigger the upgrade failure screen.

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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.

6. 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.

D85U

7. Unplug the AC cord and remove the USB Memory for version upgrade.

8. 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 HLNAVCxx.USB and HLNAMxxx.BIN (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 (prepared as above) into the service socket located Right side of Main Board terminals, under INPUT3
terminal.

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'.

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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.

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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. Up on completion of the whole process, power and OPC LED will blink alternately. Also, the upgrade success screen will be shown if upgrade
screen was shown at 5.

D85U

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.

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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

4. Remote controller key operation and description of display in adjustment process mode

1) Key operation

Remote controller key Main unit key Function

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

settings are tampered in this mode, unrecoverable system damage may result.

CH ( / )

Moving an item (line) by one (UP/DOWN)

*Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.

2) Description of display

(2) Current selected input

(1) Current page/ (4) Destination

Total pages

1/40 INPUT5 AUTO USA 52_UNDER

MAIN Version 1.09 (U 2007/07/19 2 A)

BOOT Version HLNA 1.01

Monitor/Monitor BOOT Version

LCD Con Version 1.00

EQ DATA CHECKSUM ROM

TEMPERATURE 7B

LAMP ERROR 0

MONITOR ERR CAUSE 0

NORMAL STANDBY CAUSE

ERROR STANDBY CAUSE 1) 0 2) 0 3) 0

(3) Current color system

1.02/1.00

0

0H 0M 0H 0M 0H 0M

4) 0 5) 0
0H 0M 0H 0M

(5) LCD Panel size/Speaker type

(6) Adjustment

process menu
header

(7) Parameters

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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.

Page Line Item Description Remarks (adjustment detail, etc.)

1 1 MAIN Version Main software version

2BOOT Version
3 Monitor/Monitor BOOT Version Monitor and monitor boot software version
4 LCD Con Version LCD controller software version Versions are always ‘C000000000’.
5 EQ DATA CHECKSUM Audio data checksum
6 TEMPERATURE Panel temperature
7 LAMP ERROR Number of termination due to lamp error
8 MONITOR ERR CAUSE
9 NORMAL STANDBY CAUSE Refer to *1 under the list for details

10 ERROR STANDBY CAUSE Refer to *2 under the list for details

2 1 INDUSTRY INIT Initialization to factory settings

2 INDUSTRY INIT(-Public)
3 PUBLIC MODE Public mode
4 Center Acutime Accumulated main operation time
5 RESET Reset
6 Backlight Acutime Accumulated monitor operation time
7 RESET Reset
8 LAMP ERROR RESET Reset LAMP ERROR

9 VIC XPOS X-coordinate setting for VIC READ
10 VIC YPOS Y-coordinate setting for VIC READ
11 VIC COLOR Collected color data setting for VIC READ
12 VIC SIGNAL TYPE Signal type setting for VIC READ
13 VIC READ Picture level acquisition function Level appears in green on the upper right

3 1 N358 ALL ADJ(INPUT1) CVBS and TUNER signal level adjustment

2 N358 ALL ADJ(INPUT3)

3 N358 MAIN ADJ(INPUT1) CVBS signal level adjustment

4 N358 MAIN ADJ(INPUT3)

5 TUNER DAC ADJ TUNER signal level adjustment

6 N358 CONTRAST A_GAIN

7 N358 CONTRAST D_GAIN

8 N358 CONTRAST OFFSET

9 TUNER CONTRAST A_GAIN
10 TUNER CONTRAST D_GAIN
11 TUNER CONTRAST OFFSET

4 1 TUNER VCHIP TEST(69ch) Tuning test and VCHIP test (69ch)

2 TUNER VCHIP TEST(7ch) Tuning test and VCHIP test (7ch)

3 TUNER VCHIP TEST(10ch) Tuning test and VCHIP test (10ch)

4 TUNER VCHIP TEST(15ch) Tuning test and VCHIP test (15ch)

5 INSPECT USB TERM

6 HDMI EDID WRITE

7 HDMI CEC TEST

5 1 COMP15K ADJ(INPUT1) Component 15K picture level adjustment (main)

2 COMP15K ADJ(INPUT2)

3 COMP15K Y A_GAIN

4 COMP15K Cb A_GAIN

5 COMP15K Cr A_GAIN

6 COMP15K Y OFFSET

7 COMP15K Cb OFFSET

8 COMP15K Cr OFFSET

6 1 COMP33K ADJ(INPUT1) Component 33K picture level adjustment (main)

2 COMP33K ADJ(INPUT2)

3 COMP33K Y A_GAIN

4 COMP33K Cb A_GAIN

5 COMP33K Cr A_GAIN

9 COMP33K Y OFFSET
10 COMP33K Cb OFFSET
11 COMP33K Cr OFFSET

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Page Line Item Description Remarks (adjustment detail, etc.)

7 1 ANALOG RGB ADJ Analog RGB picture level adjustment

2 R A_GAIN

3 G A_GAIN

4 B A_GAIN

5R OFFSET

6 G OFFSET

7 B OFFSET

8 1 VCOM ADJ VCOM adjustment value
91FRC ON/OFF

10 1 LEV1 Standard value 1 Adjustment gradation setting.

3 LEV2 Standard value 2

4 LEV3 Standard value 3

5 LEV4 Standard value 4

6 LEV5 Standard value 5

7 LEV6 Standard value 6

11 1 MG1R WB adjustment Point 1, R adjustment value Parameter for six-point adjustment

2 MG1G WB adjustment Point 1, G adjustment value

3 MG1B WB adjustment Point 1, B adjustment value

4 MG2R WB adjustment Point 2, R adjustment value

5 MG2G WB adjustment Point 2, G adjustment value

6 MG2B WB adjustment Point 2, B adjustment value

7 MG3R WB adjustment Point 3, R adjustment value

8 MG3G WB adjustment Point 3, G adjustment value

9 MG3B WB adjustment Point 3, B adjustment value

12 1 MG4R WB adjustment Point 4, R adjustment value Parameter for six-point adjustment

2 MG4G WB adjustment Point 4, G adjustment value

3 MG4B WB adjustment Point 4, B adjustment value

4 MG5R WB adjustment Point 5, R adjustment value

5 MG5G WB adjustment Point 5, G adjustment value

6 MG5B WB adjustment Point 5, B adjustment value

7 MG6R WB adjustment Point 6, R adjustment value

8 MG6G WB adjustment Point 6, G adjustment value

9 MG6B WB adjustment Point 6, B adjustment value

13 1 MODE SELECT

2 POS SELECT

3POS MIN

4POS MID1

5POS MID2

6POS MID3

7POS MID4

8POS MID5

9POS MID6
10 POS MAX

14 1 CD MIN

2 CD MID1

3 CD MID2

4 CD MID3

5 CD MID4

6 CD MID5

7 CD MID6

8 CD MAX

15 1 CALC

2 RESET

3VAL1

4VAL2

5VAL3

6VAL4

7VAL5

8VAL6

3 – 6

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Page Line Item Description Remarks (adjustment detail, etc.)

16 1 Audio Switch

2 Flat Mode

3 EEP STATUS INIT

4 input Trim DTV

5 input Trim ATV

6 input Trim Digital

7 input Trim Analog

17 1 -6dB(1)

2 -6dB(2)

3 -6dB(3)

4 Lim(5BandPEQ)

5Lim(Bass)

6 Lim(3Band PEQ)

18 1 MBE Bass Gain

2 MBE Output Gain

3 MBE BPF

4 MBE Force Dtct Mode

5 MBE Bass G Limit

6HPF Fc

19 1 MVS width

2 MVS Xtalk

3 MVS Clarity

4 MVS LR Gain

5 MVS Output Gain

6 MVS Bass Gain

7 MVS Fo

20 1 Bass CENTER ATT

2Bass Vol0 MAX

3Bass Vol60 MAX

4 Bass Vol60 CENTER

5Bass Vol0 MIN

6Bass Vol60 MAX

21 1 Treble CENTER ATT

2 Treble Vol0 MAX

3 Treble Vol60 MAX

4 Treble Vol60 CENTER

5 Treble Vol0 MIN

6 Treble Vol60 MIN

22 1 PEQ1 Fo

2 PEQ1 Q

3 PEQ1 Gain

4 PEQ1 G Limit

5 PEQ2 Fo

6 PEQ2 Q

7 PEQ2 Gain

8 PEQ2 G Limit

9 PEQ3 Fo
10 PEQ3 Q
11 PEQ3 Gain
12 PEQ3 G Limit

23 1 PEQ4 Fo

2 PEQ4 Q

3 PEQ4 Gain

4 PEQ4 G Limit

5 PEQ5 Fo

6 PEQ5 Q

7 PEQ5 Gain

8 PEQ5 G Limit

9 PEQ6 Fo
10 PEQ6 Q
11 PEQ6 Gain
12 PEQ6 G Limit

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Page Line Item Description Remarks (adjustment detail, etc.)

24 1 PEQ7 Fo

2 PEQ7 Q

3 PEQ7 Gain

4 PEQ7 G Limit

5 PEQ8 Fo

6 PEQ8 Q

7 PEQ8 Gain

8 PEQ8 G Limit

25 1 AVC_L Fc

2 AVC_L Target Level

3 AVC_L Max Gain UP

4 AVC_L Attack Rate

5 AVC_L Release Rate

6 AVC_H Target Level

7AVC_H Max Gain UP

8 AVC_H Attack Rate

9 AVC_H Release Rate

26 1 Sub Vol.SP

2 Sub Vol. MON

3 Sub Vol. HP

4 Sub Vol.SW

5 Sub Vol. OPT

6 Clip Level SP

7 Clip Level MON

8 Clip Level HP

9 Clip Level SW
10 Clip Level OPT

27 1 PANNEL SELECT

2PWM

3PWM FREQ

4 PWM DUTY

5OSC FREQ

6 OSC DUTY

28 1 BRIGHTNESS DA0

2 BRIGHTNESS DA1

3 BRIGHTNESS DA2

4 BRIGHTNESS DA3

5 BRIGHTNESS DA4

6 BRIGHTNESS DA5

7 BRIGHTNESS DA6

8 BRIGHTNESS DA7

9 BRIGHTNESS DA8
10 BRIGHTNESS DA9
11 BRIGHTNESS DA10
12 BRIGHTNESS DA11

29 1 BRIGHTNESS DA12

2 BRIGHTNESS DA13

3 BRIGHTNESS DA14

4 BRIGHTNESS DA15

5 BRIGHTNESS DA16

6 BRIGHTNESS DA17

7 BRIGHTNESS DA18

8 BRIGHTNESS DA19

9 BRIGHTNESS DA20
10 BRIGHTNESS DA21
11 BRIGHTNESS DA22

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LC-52D85UN

Page Line Item Description Remarks (adjustment detail, etc.)

30 1 BRIGHTNESS DA23

2 BRIGHTNESS DA24

3 BRIGHTNESS DA25

4 BRIGHTNESS DA26

5 BRIGHTNESS DA27

6 BRIGHTNESS DA28

7 BRIGHTNESS DA29

8 BRIGHTNESS DA30

9 BRIGHTNESS DA31
10 BRIGHTNESS DA32

31 1 OPC33 ADLEVEL 0

2 OPC33 ADLEVEL 1

3 OPC33 ADLEVEL 2

4 OPC33 ADLEVEL 3

5 OPC33 ADLEVEL 4

6 OPC33 ADLEVEL 5

7 OPC33 ADLEVEL 6

8 OPC33 ADLEVEL 7

9 OPC33 ADLEVEL 8
10 OPC33 ADLEVEL 9
11 OPC33 ADLEVEL 10
12 OPC33 ADLEVEL 11

32 1 OPC33 ADLEVEL 12

2 OPC33 ADLEVEL 13

3 OPC33 ADLEVEL 14

4 OPC33 ADLEVEL 15

5 OPC33 ADLEVEL 16

6 OPC33 ADLEVEL 17

7 OPC33 ADLEVEL 18

8 OPC33 ADLEVEL 19

9 OPC33 ADLEVEL 20
10 OPC33 ADLEVEL 21
11 OPC33 ADLEVEL 22

33 1 OPC33 ADLEVEL 23

2 OPC33 ADLEVEL 24

3 OPC33 ADLEVEL 25

4 OPC33 ADLEVEL 26

5 OPC33 ADLEVEL 27

6 OPC33 ADLEVEL 28

7 OPC33 ADLEVEL 29

8 OPC33 ADLEVEL 30

9 OPC33 ADLEVEL 31

34 1 V6 OS THERMO 1

2V6 OS THERMO 2

3V6 OS THERMO 3

4V6 OS THERMO 4

5V6 OS THERMO 5

6V6 OS THERMO 6

7V6 OS THERMO 7

35 1 V5 OS THERMO 1

2V5 OS THERMO 2

3V5 OS THERMO 3

4V5 OS THERMO 4

5V5 OS THERMO 5

6V5 OS THERMO 6

7V5 OS THERMO 7

36 1 BL TEMP1

2BL TEMP2

3BL TDUTY

37 1 MONITOR TIME OUT

2 MONITOR MAX TEMP

3 MONITOR ERROR CAUSE

RESET

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LC-52D85UN

Page Line Item Description Remarks (adjustment detail, etc.)

38 1 LCD TEST PATTERN

2 LCD AGI TEST PATTERN

3 LCD EVA TEST PATTERN

4 YEL TEST PATTERN

5 TV TEST PATTERN 1

6 TV TEST PATTERN 2

39 1 READ/WRITE

2 SLAVE ADDRESS

3 REGISTER ADDRESS UPPER

4 REGISTER ADDRESS LOWER

5 WRITE DATA UPPER

6 WRITE DATA LOWER

7 READ DATA UPPER

8 READ DATA LOWER

40 1 KEY LOCK(1217)

2 KOUTEI AREA ALL CLEAR

3 A MODE AREA CLEAR

4 BACKUP AREA CLEAR

5 B MODE AREA CLEAR

6 EXECUTION

41 1 EEP SAVE Writing setting values to EEPROM

2 EEP RECOVER Reading setting values from EEPROM

3 STANDBY CAUSE RESET Reset stand by cause

4 SETTING FOR ADJ

5 PANEL LIMIT

6 PANEL RANGE LIMIT

*1 Details of P1.9 (NORMAL STANDBY CAUSE)

2 No operation off in the cause of “no operation off”
3 No signal off in the cause of “no signal off”
4 PC power management mode 1 in the cause of “Standby mode MODE1”
5 PC power management mode 2 in the cause of “Standby mode MODE2”
6 Off timer in the cause of “SLEEP timer”
8 Command from RS232C in the cause of command by RS-232C

*2 Details of P1.10 (ERROR STANDBY CAUSE)

11 Prolonged unspecified-signal input in PC mode in the cause of continuous “out of range”, PC input mode
17 Temperature error in the cause of abnormal temperature
1A Monitor trouble detected in the cause of abnormal monitor mode
22 LCD controller Rom error in the cause of software abnormality of LCD controller

3 – 10

LC-52D85UN

6. Special features

* STANDBY CAUSE (Page 1/41)

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 41/41)

Storage of EEP adjustment value

* EEP RECOVER (Page 41/41)

Retrieval of EEP adjustment value from storage area

7. Video signal adjustment procedure

*Adjustment process mode menu is listed in section 5.

7.1. Signal check

Signal generator level adjustment check (Adjustment to the specified level)

• Composite signal : 0.714Vp-p ± 0.02Vp-p (Pedestal to white level)

• 15K component signal : Y level : 0.714Vp-p ± 0.02Vp-p (Pedestal to white level)
PB, PR level : 0.7Vp-p ± 0.02Vp-p

• 33K component signal : Y level : 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
PB, PR level : 0.7Vp-p ± 0.02Vp-p

• Analog RGB : RGB level : 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)

7.2. Entering the adjustment process mode

Enter the adjustment process mode according to the steps described in section 3.

7.3. N358 composite signal adjustment (Tuner)

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment N358 signal

US-10ch

2 Auto adjustment

performance

Page 3/41 Bring the cursor on [•N358 ALL ADJ (INPUT1)] and press [ENTER].

Feed the NTSC (3.58) split field color bar signal (75% color saturation)
to VIDEO 1 input. Feed the RF signal (by use of US-10ch) to TUNER-A.

[Video input signal] [US-10CH]

100% white 100% white

[•N358 ALL ADJ (INPUT1) OK] appears when finished.

7.4. Component 15K signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment 480i signal Feed the 100% color bar signal to INPUT 1 component input.

2 Auto adjustment

performance

100% white

Page 5/41 Bring the cursor on [•COMP 15K ADJ (INPUT1)] and press [ENTER].

[•COMP 15K ADJ (INPUT1) OK] appears when finished.

3 – 11