Sharp LC19SK24U Schematic

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.

MODEL

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

LCD COLOR TELEVISION

CONTENTS

ﾈ

IMPORTANT SERVICE SAFETY PRECAUTION ..........................................................................................2

ﾈ

SPECIFICATIONS .........................................................................................................................................5

ﾈ

OPERATION MANUAL ..................................................................................................................................7

ﾈ

DIMENSIONS ..............................................................................................................................................11

ﾈ

REMOVING OF MAJOR PARTS .................................................................................................................13

ﾈ

ADJUSTING PROCEDURE OF EACH SECTION ......................................................................................18

ﾈ

PUBLIC MODE SETTING PROCEDURE ...................................................................................................43

ﾈ

TROUBLESHOOTING TABLE .....................................................................................................................48

ﾈ

MAJOR IC INFORMATIONS .......................................................................................................................56

ﾈ

BLOCK DIAGRAM .......................................................................................................................................58

ﾈ

OVERALL WIRING DIAGRAM ....................................................................................................................60

ﾈ

DESCRIPTION OF SCHEMATIC DIAGRAM ..............................................................................................62

ﾈ

SCHEMATIC DIAGRAM

RC/LED Unit ..............................................................................................................................................63

MAIN Unit ..................................................................................................................................................64

SUB Unit ....................................................................................................................................................82

POWER_INVERTER Unit ..........................................................................................................................86

KEY Unit ....................................................................................................................................................88

ﾈ

PRINTED WIRING BOARD ASSEMBLIES .................................................................................................89

ﾈ

REPLACEMENT PARTS LIST ...................................................................................................................109

ﾈ

PACKING OF THE SET .............................................................................................................................126

Page

N87B1LC19K24U

LC-19SK24U
LC-19SK24U-W
LC-19SB24U
LC-19SB24U-W
LC-19SB14U
LC-19D44U

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2

LC-19SK24U/U-W
LC-19SB24U/U-W
LC-19SB14U
LC-19D44U

A V

CAUTION: FOR C ONTINUED
PROTECTION AGAINST A RISK OF
FIRE REPLACE ONLY WITH SAME
TYPE F7501 (5A, 250V) AND F7502
(2.5A, 250V) FUSE.

SAFETY NOTICE

Many electrical and mechanical parts in LCD 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 "!"

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:

and shaded areas in the Replacement Parts Lists and
Schematic Diagrams.

For continued protection, replacement parts must be
identical to those used in the original circuit.
The use of 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.

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:

1. 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.

2. 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.

3. 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,
and connect the DC power cable into the receiver's
DC jack. (Do not use an isolation transformer for this
test).

•

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 0.75V peak (this corresponds to 0.5

mA. peak 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

TO EXPOSED
METAL PARTS

CONNECT TO
KNOWN EARTH
GROUND

0.15 µF

TEST PROBE

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3

LC-19SK24U/U-W
LC-19SB24U/U-W

LC-19SB14U

LC-19D44U

PRECAUTION: POUR LA

PROTECTION CONTINUE
CONTRE LES RISQUES
D'INCENDIE, REMPLACER LE
FUSIBLE PAR UN FUSIBLE DE
MEME TYPE

F7501 (5A, 250V)

et

F7502 (2.5A, 250V).

AVIS POUR LA SECURITE

De nombreuses pièces, électriques et mécaniques,
dans les téléviseurs de l'afficharge à cristaux liquides
présentent des caractéristiques spéciales relatives à la
sécurité.
Ces caracténstiques 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 ou autres accidents.

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

La réparation ne peut être effectuée que par un technicien spécialisé qui s'est
parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants.

AVERTISSEMENT

1. Pour la sécurité continue, n'entreprendre aucune
modification de tout circuit.

2. Débrancher l'alimentation CA avant la réparation.

AVANT DE RENDRE LE RECEPTEUR A L’UTI­LISATEUR (Incendie et choc électrique)

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

1. 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.

2. 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 résistance-capacité, les isolateurs
mécaniques, etc.

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

•

B

rancher 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 1.5kΩ 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 CA 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 doit 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.

A V

DVM

AC SCALE

1.5k ohm
10W

TO EXPOSED
METAL PARTS

CONNECT TO
KNOWN EARTH
GROUND

0.15 µF

TEST PROBE

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4

LC-19SK24U/U-W
LC-19SB24U/U-W
LC-19SB14U
LC-19D44U

Precautions for using lead-free solder

1 Employing lead-free solder

"All 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:

2 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.

3 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.

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

Lead-free wire solder for servicing
Part No,

★

Descr

iption Code

ZHNDAi123250E J

φ

0.3mm 250g(1roll) BL

ZHNDAi126500E J

φ

0.6mm 500g(1roll) BK

ZHNDAi12801KE J

φ

1.0mm 1kg(1roll) BM

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5

LC-19SK24U/U-W
LC-19SB24U/U-W

LC-19SB14U

LC-19D44U

SpeCifiCationS

*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.

LCD panel

Item

Model: LC-19SK24U/LC-19SK24U-W/LC-19SB24U/LC-19SB24U-W/LC-19SB14U

18.5o Active Matrix type a-Si TN LCD ( Screen size 181/

2

o

measured diagonally)

2W g 2

Number of dots

TV
Function

TV-standard (CCIR)

Receiving
Channel

VHF/UHF

CATV(analog)

Digital Terrestrial
Broadcast (8VSB)

Audio multiplex

Audio out

Terminals

INPUT 1

INPUT 2

INPUT 3

INPUT 4

ANTENNA

DIGITAL AUDIO OUTPUT

OSD language

Power Requirement

Power Consumption

Weight

Dimension

*2

(W g H g D)

Operating temperature

3,147,264 dots (1366 g 768 g 3 dots)

American TV Standard ATSC/NTSC System

VHF 2-13ch, UHF 14-69ch

1-125ch (STD, HRC, IRC)

2-69ch

BTSC System

COMPONENT in

AV in, S-VIDEO in

HDMI in with HDCP(480P, 720P/60Hz, 1080I/60Hz, VGA), HDMI Analog Audio in

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

7

5 q U

nbalance, F Type g 1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)

Optical Digital audio output g 1 (Dolby Digital)

English/French/Spanish

AC 120 V, 60 Hz

e

32°F to e104°F (0°C to e40°C)

TV only

TV

+ stand

TV + stand

TV only

45 W (0.5 W Standby with AC 120V)

11.4 lbs./5.2 kg

10.3 lbs./4.7 kg

1

8

3

/16 g 12 19/32 g 2 61/64 inch

18

3

/16 g 1

4

11

/64 g 7 63/64 inch

Digital Cable

*1

(64/256 QAM)

1-135ch

Headphone

Ø 3.5 mm jack (Audio Output)

19K24U P1-17.indd 5 2007-9-28 13:51:42

6

LC-19SK24U/U-W
LC-19SB24U/U-W
LC-19SB14U
LC-19D44U

SpeCifiCationS(Continued)

*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.

LCD panel

Item

Model: LC-19D44U

18.5o Active Matrix type a-Si TN LCD ( Screen size 18

1

/

2

o

measured diagonally)

2W g 2

Number of dots

TV
Function

TV-standard (CCIR)

Receiving
Channel

VHF/UHF

CATV(analog)

Digital Terrestrial
Broadcast (8VSB)

Audio multiplex

Audio out

Terminals

INPUT 1

INPUT 2

INPUT 3

INPUT 4

ANTENNA

DIGITAL AUDIO OUTPUT

OSD language

Power Requirement

Power Consumption

Weight

Dimension

*2

(W g H g D)

Operating temperature

3,147,264 dots (1366 g 768 g 3 dots)

American TV Standard ATSC/NTSC System

VHF 2-13ch, UHF 14-69ch

1-125ch (STD, HRC, IRC)

2-69ch

BTSC System

COMPONENT in

AV in, S-VIDEO in

HDMI in with HDCP(480P, 720P/60Hz, 1080I/60Hz, VGA), HDMI Analog Audio in

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

7

5 q U

nbalance, F Type g 1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)

Optical Digital audio output g 1 (Dolby Digital)

English/French/Spanish

AC 120 V, 60 Hz

e

32°F to e104°F (0°C to e40°C)

TV only

TV

+ stand

TV + stand

TV only

45 W (0.5 W Standby with AC 120V)

11.9 lbs./5.4 kg

10.1 lbs./4.5 kg

1

8

3

/16 g 12 19/32 g 3 1/32 inch

18

3

/16 g 14 11/64 g 7 63/64 inch

Digital Cable

*1

(64/256 QAM)

1-135ch

Headphone

Ø 3.5 mm jack (Audio Output)

19K24U P1-17.indd 6 2007-9-28 13:51:42

7

LC-19SK24U/U-W
LC-19SB24U/U-W

LC-19SB14U

LC-19D44U

OPERATION MANUAL

Part names

POWER

button

TV (Front)

Channel

buttons

(CHr/s)

Volume
buttons

(VOLk/l)

INPUT

button

POWER

indicator

OPC sensor*

Remote control sensor

*OPC: Optical Picture Control

OPC

indicator

TV (Side/Rear)

INPUT 4 terminals
(PC IN)

INPUT 1 terminals

DIGITAL AUDIO OUTPUT
terminal

Antenna/Cable

in

AC INPUT
terminal

INPUT

2 terminals

MENU

button

INPUT 3 terminals
(HDMI)

HEADPHONE

terminal

Regarding the headphone jack

• Use headphones with a stereo mini plug (Ø 3.5 mm).

• Be sure to unplug headphones from the jack when they are not in use.

• The speakers do not output volume when headphones are plugged in.

• You can set the volume to different levels for each input source.

Volume display when
headphones are plugged in

20

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8

LC-19SK24U/U-W
LC-19SB24U/U-W
LC-19SB14U
LC-19D44U

1 POWER: Switch the TV power on or enters standby.
2 DISPLAY:

Display the channel information.

3 CC:

Display captions from a closed-caption source.

4 0 – 9:

Set the channel.

5 • (DOT)
6 FLASHBACK:

Return to the previous channel or

external input mode.

7 VIEW MODE:

Select the screen size.

8 FREEZE:

Set the still image. Press again to return to

normal screen.

9 a/b/c/d/ENTER:

Select a desired item on the

screen.

10 EXIT:

Turn off the menu screen.

11 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.

12 SLEEP:

Set the sleep timer.

13 AV MODE:

Select an audio or video setting. (When
the input source is TV, INPUT 1 or 2: STANDARD,
MOVIE, GAME, USER, DYNAMIC (Fixed), DYNAMIC.
When the input source is INPUT 3: STANDARD,
MOVIE, GAME, PC, USER, DYNAMIC (Fixed),
DYNAMIC. When the input source is INPUT 4:
STANDARD, PC, USER)

14 MUTE:

Mute the sound.

15 AUDIO: Selects

the MTS/SAP or the audio mode

during multi-channel audio broadcasts.

16 VOL k/l:

Set the volume.

17 CHr/s:

Select the channel.

18 ENT: Jumps

to a channel after selecting with the 0–9

buttons.

19 INPUT:

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

INPUT 2, INPUT 3, INPUT 4)

20 PC:

Quickly access to PC mode.

21 MENU:

Display the menu screen.

22 RETURN:

Return to the previous menu screen.

Remote control unit

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

Part names

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9

LC-19SK24U/U-W
LC-19SB24U/U-W

LC-19SB14U

LC-19D44U

Kitchen Remote control unit (LC-19SK24U/LC-19SK24U-W/LC-19D44U)

1 KITCHEN TIMER/CLOCK SET/ALARM:

Set the kitchen timer, clock or alarm.
2 MIN/HOUR :

Set the minute of kitchen timer and the hour of clolck or alarm.

3 SEC/MIN :

Set the second of kitchen timer and the minute of clock or alarm.

4 SET/STOP :

Confirm setting or stop beeper sound.

5 LIGHT :

Light on the remote control LCD backlight.

6,7 CHr/CHs :

Select the channel.

8 VOL+ :

To increase the volume.

9 VOL- :

To decrease the volume.

10 POWER :

Switch the TV power on or enters standby.

• The method of using the Kitchcen Remote control unit, please see page 50~52 of operation manual.

Part names

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10

LC-19SK24U/U-W
LC-19SB24U/U-W
LC-19SB14U
LC-19D44U

Menu items for TV/INPUT 1/2 Menu items for HDMI/PC-IN

Treble
Bass
Balance
Reset

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

OPC
Backlight
Contrast
Brightness
Color
Tint
Sharpness
Advanced

C.M.S
Color Temp.
Film Mode
3D-Y/C
Monochrome
I/P Setting

Reset

Treble
Bass
Balance
Reset

OPC
Backlight
Contrast
Brightness
Advanced

C.M.S
Color Temp.
Monochrome

Reset

No Signal Off
No Operation Off

No Signal Off
No Operation Off
Power Management

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

Input Label
Parental CTRL
Position
PC Setup
HDMI Audio Select
HDMI Auto View
Rotate
Language
Reset

Audio Only

DNR
Audio Only
Digital Audio
Color System
Digital Caption Setup
Favorite CH

Basic adjustment settings

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11

LC-19SK24U/U-W
LC-19SB24U/U-W

LC-19SB14U

LC-19D44U

DIMENSIONS

Unit: inch (mm)

10 (254)

18

3

/16

(462)

12

19

/32

(320)

1

37

/64

(40)

16

7

/32

(411.8)

9

5

/32

(232.4)

14

11

/64

(360)

8

37

/64

(218)

3

15

/16

(100)

3

15

/16

(100)

3

17

/64

(83)

7

63

/64

(203)

2

61

/64

(75)

1

59

/64

(49)

LC-19SK24U/LC-19SK24U-W/LC-19SB24U/LC-19SB24U-W/LC-19SB14U

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12

LC-19SK24U/U-W
LC-19SB24U/U-W
LC-19SB14U
LC-19D44U

DIMENSIONS

LC-19D44U

Unit: inch (mm)

10(254)

18

3

/16

(462)

12

19

/32

(320)

1

37

/64

(40)

16

7

/32

(411.8)

9

5

/32

(232.4)

14

11

/64

(360)

8

37

/64

(218)

3

15

/16

(100)

3

15

/16

(100)

3

17

/64

(83)

7

63

/64

(203)

2

53

/64

(72) 3

5

/8

(92)

2

3

/64

(52)

3

1

/32

(77)

19K24U P1-17.indd 12 2007-8-15 15:29:43

13

LC-19SK24U/U-W
LC-19SB24U/U-W

LC-19SB14U

LC-19D44U

REMOVING OF MAJOR PARTS

(LC-19SK24U/LC-19SK24U-W)

1. Remove the Stand HINGI Cover fixing screw (1 pc.).

2. Remove the stand fixing screws (4 pcs.).

3. Remove the cabinet B fixing screws (10 pcs.).

4. Remove the cabinet B after opening from the direction of an arrow.

5. Disconnect all the connectors from all the PWBs.

Cabinet B

Cabinet A

3

3

3

2

1

5

5

4

Stand HINJI Cover

Stand

Inverter PWB

Main PWB

BTN PWB

LED PWB

Sub PWB

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14

LC-19SK24U/U-W
LC-19SB24U/U-W
LC-19SB14U
LC-19D44U

(LC-19D44U)

1. Remove the Stand HINGI Cover fixing screw (1 pc.) and the handle fixing screws (4 pcs).

2. Remove the stand fixing screws (4 pcs.).

3. Remove the cabinet B fixing screws (10 pcs.).

4. Remove the cabinet B after opening from the direction of an arrow.

5. Disconnect all the connectors from all the PWBs.

Cabinet B

Cabinet A

3

2

1

5

5

3

3

4

Stand HINJI Cover

Stand

Inverter PWB

Main PWB

BTN PWB

LED PWB

Sub PWB

1

19K24U P1-17.indd 14 2007-9-13 10:25:48

15

LC-19SK24U/U-W
LC-19SB24U/U-W

LC-19SB14U

LC-19D44U

(LC-19SB24U/LC-19SB24U-W/LC-19SB14U)

1. Remove the Stand HINGI Cover fixing screw (1 pc.).

2. Remove the stand fixing screws (4 pcs.).

3. Remove the cabinet B fixing screws (10 pcs.).

4. Remove the cabinet B after opening from the direction of an arrow.

5. Disconnect all the connectors from all the PWBs.

Cabinet B

Cabinet A

3

2

1

5

5

3

3

4

Stand HINJI Cover

Stand

Inverter PWB

Main PWB

BTN PWB

LED PWB

Sub PWB

19K24U P1-17.indd 15 2007-9-13 10:25:50

16

LC-19SK24U/U-W
LC-19SB24U/U-W
LC-19SB14U
LC-19D44U

6. Remove the vesa angle fixing screws (4 pcs.).

7. Remove the 3 lock screws from Main Shield.

8. Remove the 9 lock screws from the sub PWB and main PWB and power PWB and AC angle. Detach the sub
PWB and main PWB and power PWB from LCD assembly.

9. Remove the 3 lock screws from the control button assembly and the source PWB Shield.

10. Remove the LED PWB fixing screws (1 pcs.).

11. Remove the 2 lock screws each from the right and left speakers ass’y and take out both the speakers ass’y.

12. Remove the 4 lock screws each from the right and left speaker angle.

Main PWB

Power PWB

Sub PWB

LED PWB

LED PWB

Speaker (L)

Speaker Angle (L)

Speaker Angle (R)

Speaker (R)

8

8

8

9

8

7

6

6

9

10

11

12

12

11

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Step Part No. Description

2 QCNW-E542WJZZ Extension Cab

le 23-pin Main (SC1201)-Sub (P501)

3 QCNW-E542WJZZ Extension Cab

le 23-pin Main (SC1202)-Sub (P502)

4 QCNW-E542WJZZ Extension Cab

le 23-pin Main (SC1203)-Sub (P503)

5 QCNW-D431WJZZ Extension Cab

le 15-pin Main (SC1204)-Power (SC7501)

6 QCNW-C458WJQZ Extension Cab

le 80-pin Main(SC9201)-Panel(CN1)

ﾈ

Precautions in servicing the side-B (backside) of the main PWB unit

1. Remove the lock screws (2 pcs.) from the main PWB, detach the PWB from the set, and then turn it over.

2. Connect the service-specific extension cable (QCNW-E542WJZZ) between the main PWB (SC1201) and the
sub PWB (P501).

3. Connect the service-specific extension cable (QCNW-E542WJZZ) between the main PWB (SC1202) and the
sub PWB (P502).

4. Connect the service-specific extension cable (QCNW-E542WJZZ) between the main PWB (SC1203) and the
sub PWB (P503).

5. Connect the service-specific extension cable (QCNW-D431WJZZ) between the main PWB (SC1204) and the
power PWB (SC7501).

6. Connect the service-specific extension cable (QCNW-C458WJQZ) between the main PWB (SC9201) and the
panel PWB (CN1).

ﾈ

Precautions in servicing the side-B (backside) of the power PWB unit

1. Remove the lock screws (4 pcs.) from the power PWB unit, detach the PWB from the set, and then turn it over.

2. Connect the service-specific extension cable (QCNW-D431WJZZ) between the power PWB (SC7501) and the
main PWB (SC1204).

ﾈ

Precautions in servicing the side-B (backside) of the sub PWB unit

1. Remove the lock screws (3 pcs.) from the sub PWB unit, detach the PWB from the set, and then turn it over.

2. Connect the service-specific extension cable (QCNW-E542WJZZ) between the sub PWB (P501) and the main
PWB (SC1201).

3. Connect the service-specific extension cable (QCNW-E542WJZZ) between the sub PWB (P502) and the main
PWB (SC1202).

4. Connect the service-specific extension cable (QCNW-E542WJZZ) between the sub PWB (P503) and the main
PWB (SC1203).

5

5

Inverter PWB

Main PWB

BTN PWB

LED PWB

Sub PWB

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ADJUSTING PROCEDURE OF EACH SECTION

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 the any PWB and/or IC for repair, please note the following

1.1

When replacing the unit DUNTKE367MF01, make sure to prepare the new unit loaded with updated software.

1.2 Special Equipment

1.2.1 Renesas E8, the SUB microprocessor software Writer

1.2.2 Renesas M3A-2925G01, the MAIN microprocessor software Writer

1.2.3 Sophia systems DTV EJ-Writer, the MPEG Module software Writer

1.2.4 Convertor 1, please refer to following schematic and make one.

1.2.5 Convertor 2, please refer to following instruction and make one.
DTV EJ Writer (SH2/SH3) TUNER port
1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
2 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
3 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
4 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4
5 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5
6 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
7 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
8 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8
9 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 10
11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11
12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 12

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2. Upgrading of each microprocessor software

2.1 Sub microprocessor software version upgrade

1). Install “E8 Emulator Debugger” in CD-ROM.

2). access http://www.renesas.com/fmwk.jsp?cnt=/download_search_results.jsp&fp=/support/downloads/
download_results&layerId=1612 to download following two update packages:

1

E8 Emulator Software V.2.09 Release 02 for M16C, H8 Upgrade (Debugger package version)

Issue date:2007-2-22 48.3M

2

High-performance Embedded Workshop V.4.02.00 Upgrade
Issue date:2006-12-10 52.5M
Install these packages.

3). connect E8 Emulator Debugger to PC from USB port.(drivers at folder”E8 Emulator Debugger”)

4). connect E8 writer to LCD’s 20PIN port which near INPUT4 terminal, use convertor1.

5). run “High Performance Embeded Workshop” in start menu.

6). choose “Browse to another project work”, and select “R8C_2A” in folder “R8C_2A”.

If second time, you can select “open a recent project work”.
Choose “OK”.

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7). Then enter “Emulator settings”, the Device is R5F212B8, mode is “program flash”. please choose “Power
Target from E8(MAX 300mA)” and select 3.3V, and choose OK.

8). connecting start, after connected it will enquire a ID CODE, input all zero (0000000000000000).

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9). Next display

10). enter menu ”debug”->”debug settings…” -> “add” to add firmware file (Mot file).

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After it you can see firmware in “Download modules”.

11). Enter menu ”Debug”->”DOWNLOAD modules” and select the firmware.

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12). After updating

Then shut down “High Performance Embeded Workshop”, unplug 20PIN connector, and E8 firmware updating
finish.

2.2 Main microprocessor software version upgrade

2.2.1 Please find the folder named PD308 on the SM Server:
Ftp://172.30.48.21/NSEC_Design/LC-19D44U/Service_Manual

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2.2.2 Install software: \PD308\PD308SDI_

暂定版

\DISK1\setup.exe

After installation, connect writer to PC, the drivers at C: \Renesas\PD308SDI\DRIVERS\ (default install path)

2.2.2.1 MCU settings/Download Behavior settings
MCU FILE at PD308\MCUFiles\66608.mcu

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2.2.2.2 Target Dependence Memory setting
Type=Read/Write, Size=ALL, TOP=0, Bottom=DFFF → Add
Type=Read/Write, Size=Word/Lword, TOP=8000000, - -Bottom=9FFFFF → Add

2.2.2.3 Make the FTD file(FLASH Memory)
Need two files: PD308\FDDFiles\DVP-M2_FTD_061221.scr
PD308\FDDFiles\S29AL008B_M32C.FDD
Type = Flash ROM ->Create

Device File: Refer-> S29AL008B_M32C.FDD
ROM Activate Script File: Refer-> DVP-M2_FTD_061221.scr

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And other settings as follow

OK and save as M2_1M.ftd file

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2.2.2.4 “Add” Flash ROM

Setting finish.

2.2.2.5 Update firmware:

1

. Connect M2 writer to LCD’s 20PIN port which near INPUT4 terminal, use convertor1

2

. Plug AC cord, make sure power indicator on.

3

. Run PD308SDI in start menu.

Then choose OK.

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4

. If the connection correct, it will display as below:

5

. Enter menu “file”->“download”> “rom data”, and select firmware(MOT file).

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6

. Wait about 30 seconds, it up to 100%

7

. Shut down PD308SDI.

8

. Unplug AC cord and 20Pin connector.

3. MPEG2 module software version upgrade

Install soft in CD-ROM : WATCHPOINT-EJW\Disk1\SETUP.EXE
USB Driver: CD-ROM folder “USB Driver”.

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