SHARP LC15B1U Service Manual

SERVICE MANUAL

S62K9LC-15B1U

LCD COLOR TELEVISION

LC-15B1U

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
be used.

LC-15B1U

CONTENTS

Page

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

» PRECAUTIONS FOR USING LEAD - FREE SOLDER ........................................................................ 4

» SPECIFICATIONS ................................................................................................................................ 5

» OPERATION MANUAL ......................................................................................................................... 6

» DIMENSIONS ....................................................................................................................................... 7

» REMOVING OF MAJOR PARTS .......................................................................................................... 8

» ADJUSTING PROCEDURE OF EACH SECTION ............................................................................. 11

» TROUBLE SHOOTING TABLE........................................................................................................... 23

» CHASSIS LAYOUT ............................................................................................................................. 28

» BLOCK DIAGRAMS............................................................................................................................ 30

» DESCRIPTION OF SCHEMATIC DIAGRAM ..................................................................................... 32

» SCHEMATIC DIAGRAMS ................................................................................................................... 33

» PRINTED WIRING BOARD ASSEMBLIES........................................................................................ 47

» PARTS LIST

Ë

ELECTRICAL PARTS..................................................................................................................... 62

MAIN UNIT ..................................................................................................................................... 62

TERMINAL UNIT............................................................................................................................ 66

CONTROL UNIT ............................................................................................................................ 69

LED UNIT ....................................................................................................................................... 69

INVERTER UNIT............................................................................................................................ 69

Ë

CABINET PARTS LIST................................................................................................................... 70

Ë

SUPPLIED ACCESSORIES PARTS .............................................................................................. 70

Ë

PACKING PARTS ........................................................................................................................... 70

Ë

CABINET AND MECHANICAL PARTS.......................................................................................... 71

» PACKING OF THE SET ...................................................................................................................... 73

SHARP CORPORATION

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

1

LC-15B1U

2

2

Ë

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

IMPORTANT SERVICE SAFETY PRECAUTION

WARNING

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

2. Disconnect AC power before servicing.

CAUTION

FOR CONTINUED PROTECTION
AGAINST A RISK OF FIRE REPLACE
ONLY WITH SAME TYPE FUSE.

A V

F3701 (2A, 125V), F6500 (1.6A, 125V), F6501 (1.6A,
125V) FUSE.

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 and 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 110~240 volt A C 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 50k 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 ha ving with 5000 ohm per volt, or
higher, sensitivity or measure the AC voltage drop
across the resisor.

• 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 and etc.) and measure the AC voltage drop
across the resistor.
All checks must be repeated with the AC cord plug
connection reversed. (If necessar y, 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
milliamp. peak A C .) or more is e xcessive and indicates
a potential shock hazard which must be corrected
before returning the monitor to the owner .

DVM

AC SCALE

50k ohm

10W

0.15 µF

TEST PROBE

TO EXPOSED
METAL PARTS

CONNECT TO
KNOWN EARTH
GROUND

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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 and etc.
Replacement parts which have these special safety
characteristics are identified in this manual; electrical

and shaded areas in the

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.

components having such features are identified b y “ å”

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

2

Replacement Parts Lists

.

and

5
5

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

Ë

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

LC-15B1U

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 PAR UN FUSIBLE
DE MEME TYPE F3701 (2A, 125V), F6500
(1.6A, 125V), F6501 (1.6A, 125V) FUSE.

A V

• 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 piéces métalliques
exposées qui présentent une v oie de retour au châssis
(antenne, coffret métallique, tête des vis, arbres de
commande et des boutons, écusson, etc.) et mesure
la chute de tension CA en-travers de la résistance.
T outes les vérifications doivent être refaites aprés a voir
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.)
Une valeur de 0.75 V RMS ou plus (correspond à 0.5

VERIFICATIONS CONTRE L’INCEN-DIE ET
LE CHOC ELECTRIQUE

mA C.A.) est excessive et implique un danger de
secousse électrique, qui devra être supprimé avant
de retourner l'appareil à l'utilisateur.

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-

VTVM

ECHELLE CA

50K OHMS

10W

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:

• Brancher le cordon d’alimentation dans la prise CA de
110~240 V et le câble d’alimentation CC dans le jack
du moniteur. (Ne pas utiliser un transformateur pour

0.15 µF

SONDE D'ESSAI

cet essai.)

• A l’aide de deux fils à pinces, brancher une résistance
de 1,5kΩ 10 watts en paralléle 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

VERS PIECES
METALLIQUES
EXPOSEES

CANNECTER A
UNE MASSE DE
TERRE CONNUE

la terre.

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234

AVIS POUR LA SECURITE

De nombreuses pièces, électriques et mécaniques, dans
les téléviseurs 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

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234

identifiées par la marque “ å” et hachurées dans

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.

3

la liste

LC-15B1U

Ë

Precautions for using lead-free solder

1 Employing lead-free solder

“Main PWB” 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.

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

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.
Special attention must be paid to coils of L6500 - L6503.

Lead-free wire solder for servicing

Part No. ★ Description Code

ZHNDAi123250E J φ 0.3 mm 250 g (1 roll) BL
ZHNDAi126500E J φ 0.6 mm 500 g (1 roll) BK

ZHNDAi12801KE J φ 1.0 mm 1 kg (1 roll) BM

4

SPECIFICATIONS

LCD panel................................................ 15" Advanced Super View & Black TFT LCD

Number of dots ..................................................................................921,600 dots VGA

Video color system ..............................N358/N443/PAL/PAL-M/PAL-N/SECAM/PAL-60

TV Function

Destination...................................................................................... USA/Latin A/Twn

TV-Standard (CCIR) ................................................................. NTSC/PAL-M/PAL-N

TV-Tuning System...................................................................................PLL 181 ch.

Stereo .....................................................................................................MTS + SAP

CATV.............................................................................................................. 125 ch.

4-line comb filter ....................................................................................................... Yes

Audio output.....................................................................................................2.1 W x 2

Speakers...............................................................1-37/64 x 2-3/4 in. (4 x 7 cm), 2 pcs.

Terminals

AV1 ........................................................................................... AV-IN1, S-VIDEO-IN

AV2 ...................................................................................................AV-IN2/AV-OUT

Component .................................................................. COMPONENT-IN, AUDIO-IN

Antenna .......................................................................................................... F-Type

Headphone ...................................................................... Mini-jack for stereo (3.5 φ)

PC Card slot ...................................................... PC Card Type ll (PC Card adapter)

Image File Format............................................. JPEG files complying with DCF format

OSD language ..........................................................................English/French/Spanish

Power supply........................................................... DC 12 V, AC 110 - 240 V, 50/60 Hz

Power consumption ............................................................AC 43 W (With AC adapter)

DC 37 W (DC 12 V)

Weight.......................................................................11.7 lbs (5.3 kg), w/o accessories

Accessories ................................................Remote Control, Batteries, Antenna cable,

AC adapter, AC cord, Cable clamp

LC-15B1U

Æ

The LCD display is manufactured with concentrated precision technology, and has

effective pixels of more than 99.99%. 0.01% of them may be missing or all the time.

This is normal.

Specifications are subject to change without prior notice.

5

LC-15B1U

PC CardPC Card

OPERATION MANUAL

Main unit (Front view)

Upper control panel

VOL

CH MENU TV/VIDEO MAIN POWER

Speaker

Remote sensor window

Note

TV/VIDEO, CH ( )/( ), VOL (–)/(+), and MENU on the main unit have the same functions as the same buttons

on the remote control. Fundamentally, this operation manual provides a description based on operation with the
remote control.

Speaker

P

O

W

E

R

S

L
E

E

P

SLEEP indicator

The SLEEP indicator lights up red when
the SLEEP TIMER is set to on.

POWER indicator

A green indicator lights when the power is
on and a red indicator lights when in the
standby mode (the indicator will not light
when the main power is off).

VOL (–)/(+)
CH (

)/( )
MENU
TV/VIDEO
MAIN POWER

PC Card slot

To change the vertical angle of the LCD
TV set, tilt the screen up to 5 degrees
forward or 10 degrees backward. The
TV set can also be rotated 50 degrees
horizontally. Please adjust the angle so
that the TV set can be watched most
comfortably.

Main unit (Rear view)

VIDEO

AV-IN2/OUT

AUDIO

COMPONENT

AUDIO

L

R

Y

B

P

R

P

L

R

VIDEO
AUDIO (L)
AUDIO (R)
Y
P

B
R

P
AUDIO (L)
AUDIO (R)

PC Card slot

AV-IN2/OUT

COMPONENT

R

E
W

O
P
N
I

A

M
O

E
D
I

V
/

V
T

U
N

E

CH M

L
O
V

AV-IN1

HEADPHONE

Antenna terminal

POWER INPUT
(DC 12V)

VIDEO
AUDIO (L)
AUDIO (R)

S-VIDEO

V

ID

E

O

A

V

-IN

1

L

A

U

D

IO

R

S

-

V

ID

E

O

H

E

A

D

P

H

O

N

E

A

N

T

.

P

O

W

E

R

IN

P

U

T

D

C

1

2

V

Remote Control

6

DIMENSIONS

/56.5

7/32

2-

LC-15B1U

/303

59/64

11-

/381.7

1/32

15-

/61.1

13/32

2-

/149.5

57/64

5-

CHVOL TV/VIDEOMENU MAIN POWER

/66

19/32

2-

19-

1/16

/484

1/64

/305.3

12-

/229

1/64

9-

57/64

/98.8

3-

13/32

/61.1

2-

1-

1/16

/27

5-

57/64

/149.5 1-

7-

51/64

/198

/365.2

3/8

14-

29/32

/48.5

VIDEO

AV-IN 2/OUT

AUDIO

COMPONENT

AUDIO

11-

7/8

/301.6

3-

15/16

/100

L

R

Y

P

B

R

P

L

R

/100

15/16

3-

/11.8

15/32

S-VIDEO

VIDEO

AUDIO

L

R

HEAD

PHONE

ANT.

POWER

INPUT

DC12V

AV-IN1

(Unit: Inch/mm)

7

LC-15B1U

REMOVING OF MAJOR PARTS

1. Remove two Rear covers.

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

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

4. Push on the hooksof the Cabinet B, open the cabinet and detach eight hooks,
and then detach the Cabinet B.

5. Remove the PC card
5-1. Detach the connector.
5-2. Remove the PC card frame angle

fixing screws (2 pcs).

6. Detach the connector from each PWB.

4

4

3

4

3

4

3

4

4

5-2

PC Card Slot

PC Card Eject button

4

Cabinet B

PC Card Frame Angle

PC Card PWB

[ CAUTION ]
When you attach FFC , a
Black dot mark should be

5-1

on a card unit side

5-2

Rear cover (L)

3

4

1

Rear
cover (S)

1

3

2

Table stand

Control PWB

66

6

6

6

5-2

6

SC1203

LED PWB

SC1202 SC1201

6

P3503

6

P3501

P2003

P3500

6

6

6

Main PWB

P2004

P3601

P4005

6

SC2001

P3702

Terminal PWB

8

Inverter PWB

P6502

6

P3703

SC3403

P3504

P6500

P6501

7. Remove the Main PWB fixing screws (3 pcs.).

8. Remove the Inverter PWB fixing screw (2 pcs.).

9. Remove the Terminal PWB fixing screws (4 pcs.).

10. Remove the LED PWB fixing screws (2 pcs.).

11. Remove the Control PWB fixing screws (2 pcs.).

12. Remove the LCD Unit fixing screws (4 pcs.).

LC-15B1U

12

7

8

Inverter PWB

Main PWB

9

Terminal PWB

12

12

Control PWB

10

11

LED PWB

LCD Unit

9

Chassis Frame

12

LC-15B1U

13. Remove the LCD display unit fixing screws (4 pcs.).

14. Detach the Reflection/deflection sheet, Pr ism sheet and Diffusion sheet.

15. Detach four Reflection mirrors.

16. Remove the Fluorescent lamp.

17. Detach the Light guide plate.

18. Detach two Lamp reflection sheets.

Prism sheet
(PSHEP0282CEZZ)

Reflection/deflection sheet
(PSHEP0283CEZZ)

14

Diffusion sheet
(PSHEP0281CEZZ)

15

Fluorescent lamp
(KLMP-0122CEZZ)

17

16

Reflection mirror

19

18

Light guide plate
(PGiDM0070CEZZ)

16

Lamp reflection sheet-1
(PSHEP0284CEZZ)

Lamp reflection sheet-2
(PSHEP0285CEZZ)

Shielding plate
(PSLDM4689CEFW)

Reflection mirror

LCD display unit
(RLCDTA003WJZZ)



14

10

LC-15B1U

ADJUSTING PROCEDURE OF EACH SECTION

The best adjustment is made before shipping. If any position deviation is found or after part replace is performed, adjust
as follows.

1.Preparation for Adjustments

(1) Use the exclusive-use AC adapter or stable DC power supply.

AC adapter: UADP-0242CEPZ
DC power supply: 12 ± 0.5V

2.Special mode setting procedure

(1) After initialization of E2PROM the mode is changed to the adjustment mode.

[Procedure]
Connect TP2001 and TP2002 to GND, and turn on the power.

[Description]

» The initialization of microcomputer is as follows.
» AV position, DAC data, G/A data, sound processor data, and video chroma data adjustment values are taken as

defaults.

(2) Adjustment mode

[Procedure]
Short-circuit TP2001 to GND, and turn on the power.
Or short-circuit TP2002 to GND, and turn on the power.
Or holding down the [TV/VIDEO] key and [MENU] key, turn on the main power, and simultaneously press the
(inspection process) [CH "] key and [VOL –] key to change the mode to the adjustment mode.

[Description]
The manual adjustment or adjustment through communication with the automatic machine is performed.

(3) Shipping setting mode

[Procedure]
Holding down the [TV/VIDEO] key and [MENU] key, turn on the main power, and simultaneously press the
(inspection process) [CH '] key and [VOL +] key to change the mode to the shipping setting mode.
Note: Keep it in mind to turn off the power immediately. If any key-in is accidentally made, the setting will be

canceled.

[Description]
User adjustment and other values are taken as defaults.
If TV is indicated as SETTING COMPLETE, setting has been completed.

3.Cancel of special mode

Turn off the main unit power.

11

LC-15B1U

4.Adjustments

Adjustment Adjusting conditions Adjusting method

1 B+ Adjustment

(R3760)

2 Inch Size setup

(If E2PROM is replaced)
(IC2004)

3 Common-bias

adjustment

4 TAMP adjustment

1. Connect the DC voltmeter to pin (2) of
P3702.

1. Go to the adjustment mode.

1. Receive a B/W channel.

2. Go to the adjustment mode.

3. Select the "COM BIAS" with [MENU]
key.

1. In the TV mode, the unit receives a
picture of the half color bar signal
whose left top corner is 75% white.
The signal does not have to be the
half color bar as long as the 180th
line from the top and 46th pixel from
the left is 75% white. (Data at this
point is used for adjustment.)

1. Adjust the "B+ Adj" value to

5.0 ± 0.02V with R3760.

* Keep the voltage at pin (2) of P3702

below 5.3V during the adjustment.

1. Select "INCH SIZE" and adjust to
"15" with [VOL +] or [VOL –] key.

* The color of "INCH SIZE" must be

yellow.

1. Adjust "COM BIAS" to the darkest
screen with [VOL +] and [VOL –] key.

* The color of "COM BIAS" must be

yellow.

Upper left 75%

Vertical: 180th line
Horizontal: 46th pixel

640 pixels

480 lines

2. Adjust "NTSC TAMP" on the page 2
of the adjustment process mode so
that the "Y" value on the same page
falls between BF - C9.

Page 2 of the adjustment process
mode

2

| COM BIAS 120

NTSC TAMP 27
PAL-M TAMP 27
PAL-N TAMP 27
RCUTOFF 0
GCUTOFF 0
BCUTOFF 0

G3 B3 R3 00 00 00
G1 B4 Y DF DE B5
TAMP H C9
TAMP L BF

GAIBU VER 0.000

Y-Data

(White 100%)

3. Set the values of PAL-M TAMP and

PAL-N TAMP same.

12

Adjustment Adjusting conditions Adjusting method

LC-15B1U

5 White balance

adjustment

6 Checking and modifying

the settings
(If E2PROM is replaced)

1. Receive the monoscope pattern
signal.

2. Adjust the "RCUTOFF" and
"BCUTOFF" settings on the page 2
of the adjustment process mode to
become the proper white balance.
Do not change the "GCUTOFF"
settings. (It also change the black
level.)

1. Go to the adjustment mode and
check the following settings.

» V176 137
» V64 73
» V21 50
» V0 BIAS 130

1. See if all the settings are as specified.
If not, select an item in question with
[VOL +] or [VOL –] key and adjust the
setting as shown at left.

* An item selected will be highlighted

in yellow.

13

LC-15B1U

5.Shipping setting list

Channel............................................................................................................................................... 2ch

Air/Cable ............................................................................................................................................. Air

Skip Data_CATV................................................................................................................................. All Skip

Skip Data_AIR .................................................................................................................................... All Skip

Volume................................................................................................................................................ 20

Picture................................................................................................................................................. 30

Tint ...................................................................................................................................................... 0

Color ................................................................................................................................................... 0

Black Level ......................................................................................................................................... 0

SHARPNESS...................................................................................................................................... 0

RED-BLUE.......................................................................................................................................... 0

GREEN ............................................................................................................................................... 0

TV Color System................................................................................................................................. N358

AV Color System ................................................................................................................................ Auto

Language............................................................................................................................................ English

Blue Screen ........................................................................................................................................ Off

EZ Setup Auto Start............................................................................................................................ On

Sleep Timer ........................................................................................................................................ None

MTS .................................................................................................................................................... Stereo

Brightness........................................................................................................................................... Bright

Auto Power Off ................................................................................................................................... Off

Upside................................................................................................................................................. Normal

Right/Left ............................................................................................................................................ Normal

AV2 IN/OUT........................................................................................................................................ In

Closed Caption (Mode) ...................................................................................................................... OFF

(Data) ....................................................................................................................... CH1

V Chip block (MPAA) ..................................................................................................................... None

(TV Guideline) .......................................................................................................... None

(Block Content) ........................................................................................................ All Unblock

(Status)..................................................................................................................... Off

(Input Secret No.)..................................................................................................... Clear

CARD
CARD MODE CARD
SLIDE SHOW SETTING INTERVAL 5SEC
ORDER TO SHOW NORMAL
REPEAT OFF
SOUND SETTING TV — — (OFF)
AV1 — — (OFF)
AV2 — — (OFF)
COMPONENT — — (OFF)

14

6.Test patterns in adjustment process mode

(1) IC801 (video decoder) test pattern

1-1) Indication of the test pattern
Set the screen to AV1, AV2, or component, and do not input a signal.
It enters the adjustment process mode. By selecting “TEST PATTERN” on the third line of page 7 and changing
the setting value to one of 1 - 6, the test pattern will be displayed.
1-2) Description of test pattern

• In Setting 1
The color bar as shown to the left will appear.

LC-15B1U

Green

Yellow

Cyan

Magenta

Green

Red

Blue

Green

Yellow

Cyan

Magenta

• In Setting 2

A striped pattern with narrower bars than in Setting 1 will appear.

• In Setting 3

Green

Bright Bright

Dark

Green pattern as shown to the left will appear.

• In Setting 4

Green pattern of slightly dark tone will appear.

• In Setting 5

Green pattern of middle tone will appear.

• In Setting 6

Green pattern of slightly bright tone will appear.

(2) Test pattern of IC1201 (LCD controller)

2-1) How to display the test pattern
Set the screen to AV1, AV2, or component, and do not input a signal.
It enters the adjustment process mode. By selecting “G/A TEST PATTERN” on the 13th line of page 16 and
changing the setting value to ON, the test pattern will be displayed.
2-2) Description of the test pattern
The test pattern as shown to the below will appear.

(Bright)

(Bright)
(Bright)
(Bright)

Grey

(48 grey level)

(Dark)

(Dark)
(Dark)
(Dark)

White

(63 grey level)

White

(Dark)

(Dark)
(Dark)
(Dark)

White

(0 grey level)

Grey scale

Red

Green

Blue

Grey

(16 grey level)

Grey

(32 grey level)

Note: If both test pattern displays of IC801 and IC1201 are set to ON, that of IC1201 will prevail.

15

LC-15B1U

(3) Trouble shooting using test patterns

Is the test pattern of IC801

displayed normally?

Is the test pattern of IC1201

displayed normally?

Check the signal output
line of IC801, IC801 and
its peripheral circuits.

Is the waveform of signal
input pins of IC801 normal?

TV/Composite.......Pin (73)

S-video........Pins (71), (72)

Component.....Pins (4), (5),

(6), (75)

Check IC801 and its
peripheral circuits.

Check IC1201 and its
peripheral circuits, voltage of
LCD panel and waveform.

Check the signal input line
of IC801.

Is the waveform of pins
(10), (11), (13), (15), (17)
of IC1201 normal?

Check the line, IC801 and its
peripheral circuits.

16

Descriptions of the terminals of Micon IC (IC2001) RH-iXA276WJZZQ

LC-15B1U

No. Terminal Name Descriptions

1 V HOLD For closed caption
2 HLF For closed caption
3 MAINSW Main switch ON “H” / OFF “L”
4 TIMELED For LED lighting when off-timer is ON
5 M/S OUT Master-slave output for sub-micon
6 CSYNC Composite synchronized signal
7 IREMI Remote control
8 GND GND grounding

9 GND GND grounding
10 XCIN 32 kHz oscillation input
11 XOUT 32 kHz oscillation output
12 RESET Reset state in “L”
13 XOUT Oscillator connection in micon part
14 GND GND grounding
15 XIN Oscillator connection in micon part
16 VCC Power source
17 OSCIN Clock input for OSD
18 OSCOUT Clock output for OSD
19 PSWIN Main power source input
20 SUBREADY READY input for sub-micon
21 BLK Blanking output for OSD
22
23 DAC1CS DAC1 chip select
24 DAC2CS DAC2 chip select
25 DSW Detection for D-terminal connection
26 DTV Control line for D-terminal
27 MRDY Input for I2C bus open-connection change
28 SCL2 I2C bus serial clock line 2
29 SCL1 I2C bus serial clock line 1
30 SDA1 I2C bus serial data line 1
31 SDA2 I2C bus serial data line 2
32 R R-signal output
33 G G-signal output
34 B B-signal output
35 SUBDOUT Data output for sub-micon
36 SUBDIN Data input for sub-micon
37 SUBCLK Clock input for sub-micon
38
39 MRDY OUT I2C open-connection output
40 FCH
41 IREM OUT Not used
42 L_ERR Fluorescent lamp error detection input
43 S IN/OUT AUDIO IN/OUT change
44 N443 “H” in N443, “L” in others
45 PAL “H” in PAL, “L” in others
46 SECAM “H” in SECAM, “L” in others
47 PAL_M “H” in PAL-M, “L” in others
48 N358 “H” in N358, “L” in others
49 PXOE Card (Card mode in “L”)
50 VSH OUT Control for panel gate driver voltage

Field-destinctional signal output when no signals

No. Terminal Name Descriptions

51 REQ Adjusting procedure
52 AV/SY/DY2 CCD input change for US
53 FSMUTE Front speaker mute
54 RSMUTE Rear speaker mute
55 HPDET Headphones detection: detect in “L”
56 SSTBY Speaker standby (“H” in standby state)
57 VSH IN Check for panel gate driver voltage
58 LMUTE LINE OUT sounds MUTE
59 V IN/OUT VIDEO IN/OUT change
60 SRESET Sound multiplex reset: reset in “L”
61 DENKA
62 VCC Power source
63 CARDPOW Card (ON/OFF)
64 VSS GND grounding
65 TV/AV1 Analog SW 1
66 AV/AV2 Analog SW 2
67 VIS/3DS Analog SW 3
68 AV1/VISY Analog SW 4
69 AV/SY/DY1 CCD input change for US 2
70 STD Micon power-OFF output
71 PMUTE P-mute
72 POWOUT DC/DC control output
73 AD POW Adapter ON/OFF input
74 IREM 2 Receiving in slave state
75 MPRCS G/A read enable
76 MPRDA G/A data input
77 MPCS G/A chip select
78 MPDA G/A data out
79 MPCLK G/A clock
80 DDCRESET Digital decoder reset
81 KEY4 Key input 4
82 KEY5 Key input 5
83 CARDRESET CARD RESET (reset in “H”)
84 SAW SW For the tuner change (use “H”)
85 MODE1 For the tuner change (use “H”)
86 MODE2 For the tuner change (use “H”)
87 SSYSTEM For the detection of S-system change
88 SSW
89 AFT AFT voltage input
90 AGC AGC voltage input
91 KEY1 Key input 1
92 KEY2 Key input 2
93 KEY3 Key input 3
94 POWIN Detection for DC/DC starting
95 VSYNC Vertical sychronized signal for OSD
96 AVSS Analog power input (GND)
97 HSYNC Horizontal sychronized signal for OSD
98 TVSETB For closed caption (GND)
99 AVCC OSD power input

100 CVIN Signal input for closed caption

For counter-measures to the electric charge

S-terminal connection input (S-terminal connection in “L”)

17

LC-15B1U

List of the adjustment process mode menu

Page Items

Standard settings

1 INCH SIZE 15 Inch size select Adjustment

MODEL B1U Model name
CARD ON Card system ON/OFF setup
SYSTEM AUTO Color system change
NTSC PWM FREQ OCO Light control frequency setup
PAL PWM FREQ OBD Light control frequency setup
NTSC PWM DUTY 0 Light control duty setup
PAL PWM DUTY 0 Light control duty setup
TV GAIN OFF Auto gain setup in TV mode
ERROR NO RESET 0 Lamp error count and reset Number of times of lamp error
V-CHIP 1 VCHIP line mute setup
CANADIAN VCHIP OFF

Video adjustment

2 COM BIAS 120 Common bias adjustment Adjustment

NTSC TAMP 27 TAMP adjustment Adjustment
PAL-M TAMP 27 TAMP adjustment
P AL-N TAMP 27 T AMP adjustment
RCUTOFF -1 Red cutoff adjustment Adjustment
GCUTOFF 0 Green cutoff adjustment
BCUTOFF -1 Blue cutoff adjustment Adjustment
G3 00 DATA READ Value
B3 00 DATA READ Value
R3 00 DATA READ Value
G1 00 DATA READ Value
B4 00 DATA READ Value
Y 00 DATA READ Value in TAMP adjustment
TAMP H C9 Y max. value setup in TAMP adjustment
TAMP L BF Y min. value setup in TAMP adjustment

3 TV NTSC CONT 50 Video contrast setup (TV NTSC)

TV PAL-M CONT 50 Video contrast setup (TV PAL-M)
TV PAL-N CONT 50 Video contrast setup (TV PAL-N)
AV N358 CONTRAST 50
AV PAL CONTRAST 50
AV SECAM CONTRAST 50
AV PAL-M CONTRAST 50
AV PAL-N CONTRAST 50
AV PAL60 CONTRAST 50
G3 00 DATA READ Value
B3 00 DATA READ Value
R3 00 DATA READ Value
G1 00 DATA READ Value
B4 00 DATA READ Value
Y 00 DATA READ Value

Audio adjustment

4 TV GEQ BAND1 +2.0 Equallizer setup1 (TV)

TV GEQ BAND2 +0.5 Equallizer setup2 (TV)
TV GEQ BAND3 -2.0 Equallizer setup3 (TV)
TV GEQ BAND4 -1.5 Equallizer setup4 (TV)
TV GEQ BAND5 -1.5 Equallizer setup5 (TV)
EXT GEQ BAND1 +2.0 Equallizer setup1 (External input)
EXT GEQ BAND2 +0.5 Equallizer setup2 (External input)
EXT GEQ BAND3 -2.0 Equallizer setup3 (External input)
EXT GEQ BAND4 -1.5 Equallizer setup4 (External input)
EXT GEQ BAND5 -1.5 Equallizer setup5 (External input)
AV C OFF AVC setup
CARRIER MUTE ON
IGR THR 12D IGR THRESH LEVEL

Audio adjustment

5 MSP DATA 0 Audio IC MSP DATA WRITE and READ

MSP DATA WAIT WRITE and READ execute
PRESCALE FM/AM-M 17 Prescale setup (TV)
PRESCALE SCART 15 Prescale setup (External input)
FSP TEST OFF For audio test (FSMUTE ON/OFF)

Video adjustment (VPC setup)

6I2C DATA 0

I2C DATA WAIT WRITE and READ execute
CBW 1 CHROMA band pass setup
NOSEL 3 Comb filter setup
DDR 0 Comb filter setup

Initial settings

Descriptions

CANADIAN VCHIP correspondence setup

Video contrast setup (Composite, S-video)
Video contrast setup (Composite, S-video)
Video contrast setup (Composite, S-video)
Video contrast setup (Composite, S-video)
Video contrast setup (Composite, S-video)
Video contrast setup (Composite, S-video)

Audio output setup in TV mode (no synchronization)

I2C BUS control IC DATA WRITE and READ

Adjustments or descriptions of change

Adjustment (Same value to NTSC TAMP)
Adjustment (Same value to NTSC TAMP)

18

LC-15B1U

Page Items

Video adjustment (VPC setup) [Continued]

6 HDG 2 Comb filter setup

VDG 1 Comb filter setup
VPK 3 Comb filter setup
KILVL 08 08 Color killer level setup
KILHY 05 05 Color killer hysterysis setup
VSYNC DELAY 29 V-synchronized phase setup
DVCO -720 DVCO setup
AUTO LCK 1 Line lock mode setup

Video adjustment (Component)

7 VPC DATA 0 Video IC VPC DATA WRITE and READ

VPC DATA WAIT WRITE and READ execute
TEST PATTERN 0 VPC test pattern select Video IC test pattern
AUTO LDLY -2 Y/C phase setup
DVD NTSC CR 25 Color thickness setup (Component)
DVD NTSC CB 28 Color thickness setup (Component)
DVD NTSC TINT +7 Tint setup (Component)
DVD NTSC BRIGHTNESS +64 Brightness setup (Component)
DVD NTSC CONTRAST 28 Contrast setup (Component)
DVD NTSC P FILTER 0 Peaking filter setup (Component)
DVD NTSC H-PEAKING 3 H-peaking setup (Component)
DVD NTSC BRIGHT2 +8 Brightness setup2 (Component)
DVD NTSC CONTRAST2 48 Contrast setup2 (Component)

8 DVD PAL CR 31 Color thickness setup (Component)

DVD PAL CB 31 Color thickness setup (Component)
DVD PAL TINT 0 Tint setup (Component)
DVD PAL BRIGHTNESS +64 Brightness setup (Component)
DVD PAL CONTRAST 27 Contrast setup (Component)
DVD PAL P FILTER 0 Peaking filter setup (Component)
DVD PAL H-PEAKING 3 H-peaking setup (Component)
DVD PAL BRIGHT2 +9 Brightness setup2 (Component)
DVD PAL CONTRAST2 48 Contrast setup2 (Component)

Video adjustment (TV · Composite · S-video)

9 N358 TV COLOR 2600 Color thickness setup (TV)

N358 AV COLOR 2600
N358 TV TINT +70 Tint setup (TV)
N358 AV COLOR +70 Tint setup (Composite, S-video)
N358 BRIGHTNESS +8
N358 PEAKING FILTER 0
N358 TV H-PEAKING 3 H-peaking setup (TV)
N358 AV H-PEAKING 3 H-peaking setup (Composite, S-video)
N358 AVO START 152 Horizontal position setup
N358 SFIF 0 Horizontal position setup
N358 SCINC1 1623 Setup of the degree of true circle
N358 TV LDLY -2 Y/C phase setup (TV)
N358 AV LDLY -2 Y/C phase setup (Composite, S-video)

10 N443 AV COLOR 2600

N443 AV TINT +70 Tint setup (
N443 BRIGHTNESS +8
N443 PEAKING FILTER 0
N443 AV H-PEAKING 3 H-peaking setup (Composite, S-video)
N443 AVO START 152 Horizontal position setup
N443 SFIF 0 Horizontal position setup
N443 SCINC1 1623 Setup of the degree of true circle
N443 AV LDLY -2 Y/C phase setup (Composite, S-video)

11 PAL AV COLOR 2600

PAL AV TINT +70 Tint setup (
PAL BRIGHTNESS +8
PAL PEAKING FILTER 0
PAL AV H-PEAKING 3 H-peaking setup (Composite, S-video)
PAL AVO START 152 Horizontal position setup
PAL SFIF 0 Horizontal position setup
PAL SCINC1 1623 Setup of the degree of true circle
PAL AV LDLY -2 Y/C phase setup (Composite, S-video)

12 SECAM AV COLOR 2600

SECAM AV TINT +70 Tint setup (
SECAM BRIGHTNESS +8
SECAM PEAKING FILTER 0
SECAM AV H-PEAKING 3 H-peaking setup (Composite, S-video)
SECAM AVO START 152 Horizontal position setup
SECAM SFIF 0 Horizontal position setup
SECAM SCINC1 1623 Setup of the degree of true circle
SECAM AV LDLY -2 Y/C phase setup (Composite, S-video)

Initial settings

Descriptions

Color thickness setup (Composite, S-video)

Brightness setup (TV, Composite, S-video)
Peaking filter setup (TV, Composite, S-video)

Color thickness setup (Composite, S-video)
Brightness setup (TV, Composite, S-video)

Peaking filter setup (TV, Composite, S-video)

Color thickness setup (Composite, S-video)
Brightness setup (TV, Composite, S-video)

Peaking filter setup (TV, Composite, S-video)

Color thickness setup (Composite, S-video)
Brightness setup (TV, Composite, S-video)

Peaking filter setup (TV, Composite, S-video)

Composite, S-video

Composite, S-video

Composite, S-video

)

)

)

Adjustments or descriptions of change

19