Sharp Aquos LC 30HV6U User manual

LC-30HV6U
SERVICE MANUAL
LIQUID CRYSTALTELEVISION
MODEL LC-30HV6U
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.
SHARP CORPORATION This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
CONTENTS
Page
»IMPORTANT SERVICE SAFETY PRECAUTION .....2
»SPECIFICATIONS................................................5
»OPERATION MANUAL ........................................6
»DIMENSIONS ....................................................12
»REMOVING OF MAJOR PARTS........................13
»ADJUSTMENT PROCEDURES.........................17
»TROUBLE SHOOTING TABLE ..........................23
»CHASSIS LAYOUT.............................................28
Page
»BLOCK DIAGRAM .............................................30
»OVERALL WIRING DIAGRAM...........................32
»DESCRIPTION OF SCHEMATIC DIAGRAM .....34
»SCHEMATIC DIAGRAM.....................................35
»PRINTED WIRING BOARD ASSEMBLIES........68
»PARTS LIST .......................................................90
»PACKING OF THE SET ...................................109
OUTLINE
This model is different in the display size from the LC-37HV6U.
This service manual accordingly describes the display alone. For the entire AVC System, refer to the LC-
37HV4U Service Manual (SY3M1LC37HV6U).
SY3M2LC30HV6U

2
LC-30HV6U
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1
23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012
1
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1
23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012
1
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
SAFETY NOTICE
Many electrical and mechanical parts in Liquid Crystal
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“ å”
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.
WARNING
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
BEFORE RETURNINGTHE 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 110~240 volt AC outlet.
»Using two clip leads, connect a 1.5k ohm, 10 watt
resistor paralleled by a 0.15µF capacitor in series
with all exposed metal cabinet parts and a known
earth ground, such as electrical conduit or electrical
ground connected to an earth ground.
»Use an AC voltmeter having with 5000 ohm per volt,
or higher, sensitivity or measure the AC voltage drop
across the resistor.
»Connect the resistor connection to all exposed metal
parts having a return to the chassis (antenna, metal
cabinet, screw heads, knobs and control shafts,
escutcheon, etc.) and measure the AC voltage drop
across the resistor.
All checks must be repeated with the AC cord plug
connection reversed. (If necessary, a nonpolarized
adaptor plug must be used only for the purpose of
completing these checks.)
Any reading of 0.75V rms (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.
TO EXPOSED
METAL PARTS CONNECT TO
KNOWN EARTH
GROUND
IMPORTANT SERVICE SAFETY PRECAUTION
ËService work should be performed only by qualified service technicians who are thor-
oughly familiar with all safety checks and the servicing guidelines which follow:
DVM
AC SCALE
1.5k ohm
10W
0.15 µF
TEST PROBE
CAUTION: FOR CONTINUED
PROTECTION AGAINST A RISK OF
FIRE REPLACE ONLY WITH SAME
TYPE FUSE.
AVC SIDE: F701 (2A, 250V) FUSE.
LCD SIDE: F701, F702 (4A, 250V),
F708 (500mA, 125V), F730 (2A,
125V), F703, F6551, F6552, F6553,
F6554, F6555, F6556 (2A, 250V)
A V

3
LC-30HV6U
PRECAUTION: POUR LA
PROTECTION CONTINUE CONTRE
LES RISQUES D'INCENDIE,
REMPLACER LE FUSIBLE
CÔTÉAVC:F701 (2A, 250V)
CÔTÉLCD:F701, F702 (4A, 250V),
F708 (500mA, 125V), F730 (2A,
125V), F703, F6551, F6552, F6553,
F6554, F6555, F6556 (2A, 250V)
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212
1
234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
2
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212
1
234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
2
1
234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
2
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212
AVIS POUR LA SECURITE
De nombreuses pièces, électriques et mécaniques, dans
les téléviseurs présentent des caractéristiques spéciales
relatives àla sécurité, qui ne sont souvent pas évidentes
àvue. Le degréde 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
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
ËNe peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement
accoutumé à toute vérification de sécurité et aux conseils suivants.
identifiées par la marque " å" et hachurées dans la
liste des pièces de remplacement et les diagrammes
schématiques.
Pour assurer la protection, ces pièces doivent être
identiques àcelles utilisées dans le circuit d'origine.
L'utilisation de pièces qui n'ont pas les mêmes
caractéristiques que les pièces recommandées par
l'usine, indiquées dans ce manuel, peut provoquer des
électrocutions, incendies, radiations X ou autres
accidents.
AVERTISSEMENT
1. N'entreprendre aucune modification de tout circuit.
C'est dangereux.
2. Débrancher le récepteur avant toute réparation.
VERIFICATIONS CONTRE L'INCEN-DIE ET
LE CHOC ELECTRIQUE
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 placéentre 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,
ledos ducoffret,les couvercles oublindagesde 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:
•Brancher le cordon d'alimentation directem-ent àune
prise de courant de 110-240V. (Ne pas utiliser de
transformateur d'isolation pour cet essai).
•A l'aide de deux fils àpinces, brancher une résistance
de 1.5 kΩ10 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 sensibilitéd'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
inversélafichedu cordond'alimentation.(Sinécessaire,
une prise d'adpatation non polarisée peut être utilisée
dans le but de terminer ces vérifications.)
Tous les courants mesurés ne doivent pas dépasser
0.7 mA.
Dans le cas contraire, il y a une possibilitéde choc
électrique qui doit être supprimée avant de rendre le
récepteur au client.
VTVM
ECHELLE CA
1.5k ohm
10W
0.15 µF
SONDE D'ESSAI
AUX PIECES
METALLIQUES
EXPOSEES
BRANCHER A UNE
TERRE CONNUE
A V

4
LC-30HV6U
Precautions for using lead-free solder
1 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:
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, ★Description Code
ZHNDAi123250E J φ0.3mm 250g(1roll) BL
ZHNDAi126500E J φ0.6mm 500g(1roll) BK
ZHNDAi12801KE J φ1.0mm 1kg(1roll) BM
LFa

5
LC-30HV6U
SPECIFICATIONS
Item 30"LIQUID CRYSTALTELEVISION, Model: LC-30HV6U
TV
Function American TV Standard NTSC System
VHF/UHF VHF 2-13ch, UHF 14-69ch
CATV 1-125ch
Audio multiplex BTSC System
Terminals S-VIDEO in, AV in, COMPONENT in
INPUT 2 S-VIDEO in, AV in
INPUT 3 S-VIDEO in, AV in, COMPONENT in, DVI-HDTV in
ANTENNA 75 ΩUnbalance, F Type for VHF/UHF/CATV in
INPUT 4 S-VIDEO, AV in
PC 15 Pin mini D-Sub, Audio in (Ø 3.5mm jack)
OSD language English/French/Spanish
Power Requirement AC 110-240 V, 50/60 Hz
Power
Consumption 42W (0.4W Standby with AC 120 V)
Weight 12.1 lbs./5.5 kg (w/o stand), 12.3 lbs./5.6 kg (with stand)
Accessories Operation manual (×1), Remote control unit ( ×1), System cable ( ×1), AC cord
(×2), “AA” size battery (×2), AVC sytem stand unit (×1), Cable clamp (Large
×1, Small ×1), RF cable (×1)
TV-standard (CCIR)
Receiving
Channel
Rear INPUT 1
Front
LCD panel 30" Advanced Super View & BLACK TFT LCD
Number of dots 2,949,120 dots (1280 ×768 ×3dots)
Brightness 430 cd/m
2
Backlight 60,000 hours (at Backlight Standard position)
Viewing angles H : 170°V : 170°
Audio amplifier 10W ×2
Speakers Ø 8cm 2pcs, Ø 2.5cm 2pcs
AVC
System
Monitor Out Audio (Variable, Fixed), S-VIDEO out, AV out
Headphones Ø 3.5mm jack
AVC System
Display
AVC System
Display
99W (0.2W Standby with AC 120 V)
28.9 lbs./13.1 kg (Display only), 35.5 lbs./16.1 kg (with Display and speaker),
44.3 lbs./20.1 kg (with Display, speaker and stand)
DC OUTPUT DC 6.5V 7W MAX
4Ω10W (L/R)
EXT.
SPEAKER
Specifications are subject to change without prior notice.

6
LC-30HV6U
OPERATION MANUAL
Part names
OPC indicator*
POWER indicator
MAIN POWER
button
OPC sensor
Display
POWER button
INPUT
button
VOLUME buttons
(VOL–/+)
CHANNEL buttons
(CHÙ/ù)
Remote control sensor
*OPC: Optical Picture Control
(See page 32.)
SLEEP indicator
Front view
CLEAR*
MAIN POWER button INPUT 4 terminal (S-VIDEO)
INPUT 4 terminal (VIDEO)
PC INPUT terminal (AUDIO)
INPUT 4 terminals (AUDIO L/R)
PC INPUT terminal (ANALOG RGB)
AVC System
Rear view
INPUT 1 COMPONENT
video terminals (Y, P
B
, P
R
)
INPUT 3 COMPONENT
video terminals (Y, P
B
, P
R
)
MONITOR OUTPUT terminal
(S-VIDEO)
DISPLAY OUTPUT 1 terminal
DISPLAY
OUTPUT 2
terminal
AC INPUT
terminal
RS-232C
terminal
MONITOR OUTPUT terminals (AUDIO L/R)
Antenna (A) input terminal
Antenna (B)
input terminal
Antenna (A) output
terminal
DVI-HDTV
INPUT
terminal
INPUT 3 terminal (S-VIDEO)
INPUT 3 terminal (VIDEO)
INPUT 3 terminals (AUDIO L/R)
INPUT 1 terminal (S-VIDEO)
INPUT 1 terminal
(VIDEO)
INPUT 1 terminals
(AUDIO L/R)
INPUT 2 terminal (S-VIDEO)
INPUT 2 terminal (VIDEO)
INPUT 2 terminals
(AUDIO L/R)
How to open the door.
STANDBY/ON indicator
*If the AVC System is switched on but it does not appear to be operating correctly, it may need resetting. In this
case, press CLEAR, shown in the diagram, lightly with the end of a ballpoint pen or other pointed object.
This will reset the System as shown below.
•AV MODE resets to STANDARD
•TV channel returns to initial channel setting (Air:2ch, Cable:1 or 2ch)
•Twin picture resets to normal
•Audio setting initializes
•Dolby virtual resets to Off
•Image position initializes
NOTE
•Pressing CLEAR will not work if the System is in standby mode (indicator lights red).
•Pressing CLEAR will not delete channel preset or secret number. See page for clearing the secret number when you
know it. See page for initializing to the factory preset values when you forget your secr et number.
Headphone
(When connecting headphones, the sound from the
speakers is muted.)
DC OUTPUT terminal
(Terminal for expanded functionality in
the near future.)
MONITOR OUTPUT terminal
(VIDEO)
DISPLAY OUTPUT 3 terminal
EXTERNAL SPEAKER terminals

7
LC-30HV6U
Part names
Remote control unit
NOTE
•When using the remote control unit, point it at the Liquid
Crystal Television.
TV
ANT-A/ B
INPUT
Virtual
TWIN
MODE
AV
POWER
MTS CC
PICTURE
SELECT
SUB TWIN CH
+
–
FREEZE
MODE
VOL CH
MUTE
MENU TV/SAT/DVD
FAVORITE CH
RECEIVER
DTV/DVD TOP
SOURCE DTV/SAT
DTV/SAT
VCR REC
ABCD
RETURN
MENU
POWER
SET/
ENTER
MENU
GUIDE
INPUT VOL
–
VOL
+
INFO
VIEW
SLEEP LEARN
EDIT/
ENT
FLASHBACK
DISPLAY
INPUT
TV VCRCBL
/SAT /DTV
DVD /LD
123
456
789
100
0
POWER
16
17
18
19
20
21
22
24 25
23
3
2
1
4
5
6
7
8
9
10
11
12 13 14
15
1 TV POWER: Switch the Liquid Crystal Television power
on or off.
2Virtual:SelectVirtual DolbySurroundsettings.
3 AV MODE: Select an audio or video setting.
(AV mode: STANDARD, MOVIE, GAME, USER,
DYNAMIC (Fixed), DYNAMIC. PC mode:
STANDARD, USER.)
4 VIEW MODE: Select the screen size.
5 DISPLAY: Display the channel information.
6 SLEEP: Set the sleep timer.
7 FLASHBACK: Return to the previous channel or input
exter +–
nal mode.
8VOL/:Set the volume.
9 MENU: Display the menu screen.
10 MENU RETURN: Return to the previous menu screen.
11 ///:Select a desired item on the screen.
12 ANT-A/B: Select between ANT-A and B to watch
broadcasts via the two tuners.
13 INPUT: Select a Liquid Crystal Television input source.
(TV, INPUT 1, INPUT 2, INPUT 3, INPUT 4, PC)
14 :Whenpressed all buttonson the remote controlunit
will light. The lighting will turn off if no operations are
performed within about 5 seconds. This button is used
for performing operations in dark places.
15 MTS: Select the MTS/SAP.
16 CC: Display captions during closed-caption source.
17 TWIN CH buttons
TWIN PICTURE: Set the twin picture mode.
Press again to return to normal screen.
FREEZE: Set the still image. Press again to return to
normal screen.
SELECT: Select the active screen.
SUB INPUT: Select an input source of sub screen.
TWIN CH : Select the channel of sub screen.
18 0 –9: Set the channel.
19 100 ENT: Select the three digit mode. Execute a
command of the channel.
20 CH /
/
:Select the channel.
21 MUTE: Mute the sound.
22 SET/ENTER: Execute a command.
23 FAVORITE CH
A,B,C,D: Select four preset favorite channels in four
different categories.
When viewing via ANT-A: up to 16 channels can be
assigned in A, B, C and D.
When viewing via ANT-B: up to 16 channels can be
assigned in A, B, C and D.
With ANT-A and B combined, you can preset up to 32
favorite channels in advance.
While watching, you can toggle the selected channels
by pressing A, B, C and D.
24 LED for transmission confirmation
25 Mode switch:
Setting the System in place
Handling the Display
CAUTION
•When using theTV with the supplied stand attached, do not
remove the speaker. Doing so may disturb the balance
leading to product damage or personal injury.
•Do not remove the stand and speaker from the Display unless
using an optional bracket to mount it.
•Keep enough space above and behind the Display.
•The Display is heavy. Move it with two or more people.
•When you move the Display, hold the portion of the Display, not
the speaker.
Handling the AVC System
CAUTION
•Do not put a VCR or other device on the AVC System.
•Keep enough space above and on the sides of the AVC System.
•Do not block the ventilation openings on the top and left side,
and the exhaust fan on the right side.
•Do not spread a thick cloth beneath the AVC System, or cover it
with one, as this can cause overheating and result in malfunction.
Where to place the System
“System”means the Display and AVC System. First select the location where to place the System.
Selecting the location of the System
•Select a place with no direct sunlight and good ventilation.
•The Display and the AVC System are connected by the system cable.
Keep enough space
System cable
AVC System
Display
There is an
exhaust fan on
the right side.
1
2
4 inches
(10 cm)
or more 2 inches
(5 cm) or more
2 inches
(5 cm) or
more
Preparation
If you want to keep a longer distance between the Display and AVC
System, please purchase the optional system cable AN-07SC1
(about 23 feet/7 meters).
IMPORTANT
•You cannot use external speakers when you are using the optional
system cable (AN-07SC1).
CAUTION
Adjust the screen with both
hands. Put one hand on the
Display and tilt the screen
while steadying the stand
with your other hand.
You can adjust the screen
vertically up to 4 degrees
forward or 6 degrees back-
ward, or rotate 10 degrees
horizontally.

8
LC-30HV6U
System cable
AVC System (rear view)
AC cord
Display (rear view)
Setting the System
After putting the Display and the AVC System in place, connect the system cables and AC cords. Use the
cable clamps for bundling the cables.
Preparation
Connecting the system cable and the AC cord to the Display
1
2
3
Removing the terminal cover
Connecting the system cable and the AC cord to the AVC System
CAUTION
•TO PREVENT RISK OF ELECTRIC SHOCK, DO NOT TOUCH UN-INSULATED PARTS OF ANY CABLES WITHTHE
AC CORD CONNECTED.
Press down the four
upper hooks to remove
the cover toward you.
AC cord
(GRAY)
Connect the plug firmly until
the hooks on both sides click.
(WHITE)
Connect the plug into the
terminal and secure it by
tightening the thumb screws.
(BLACK)
Connect the plug completely.
(BLACK) (WHITE) (GRAY)
You cannot use external
speakers when you are using
the optional system cable
(AN-07SC1).
IMPORTANT
System cable
4
5
Attaching the clamps and bundling the cables with the clamp
Closing the terminal cover
Cable clamp (Large)
Insert the cable
clamp in the hole
on the Display leg
as shown.
Cable clamp (Small)
Peel off the seal
on the back and
attach as shown.
Display (rear view)
Cables come
out from the
small opening.
Arrange the system
cable as shown in
the illustration.

9
LC-30HV6U
Preparation
Setting the Display on the wall
CAUTION
•Installing the Liquid Crystal Television 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 Display
•You can ask a qualified service personnel about using an optional AN-37AG1 bracket to mount the Display
to the wall.
•Carefully read the instructions that come with the bracket before beginning work.
Vertical mounting Angular mounting
Hanging on the wall
AN-37AG1 wall mount bracket. (See the bracket instructions for details.)
Setting the AVC System with the stand
1
How to install the AVC System vertically using the stand unit.
•Use the supplied stand unit for installing the AVC System vertically in an upright position.
Stick each spacer to the
stand as shown.
Peel each spacer
away from the
paper and attach
to the four bulging
areas on the stand.
2Attach each cushion to
the stand as shown. 3Fit the stand to the AVC
System.
Peel each cushion
away from the
paper and attach
to the four areas at
the bottom.
Insert the stand into the AVC
System, making sure that the
thick and thin bulges of the
stand align with the big and
small holes on the AVC
System.
Stand
spacer
Bulge Stand cushion
Thin bulge
Thick
bulge
Big hole
Small
hole
4Attach the stand using the
stand screws as shown.
Stand screw
The AVC System installed
vertically with the stand.
NOTE
•When mounting the AVC System vertically, always use the supplied stand. Be careful not to block vent holes when
standing up directly on the floor or a flat surface as this can result in equipment failure.
Attaching point
Attaching point
Bulge
5°
About setting the Display angle
•You can set the Display on the
wall up to 5 degrees forward
when the speaker is attached and
up to 20 degrees forward when
the speaker is not attached. Do
not set the angle outside those
ranges.
Using external equipment
DigitalTV tuner
AVC System
(rear view)
AVC System
(front view)
AV Receiver
(Built-inTuner Amp)VCR
DVD player
Game console/
Camcorder
PC
You can connect many types of external equipment to your System, like a DVD player, VCR, Digital TV tuner, PC,
game console and camcorder. To view external source images, select the input source from INPUT on the
remote control unit or on the Display.
CAUTION
•To protect all equipment, always turn off the AVC System before connecting to a DVD player, VCR, Digital TV tuner,
PC, game console, camcorder or other external equipment.
NOTE
•Please refer to the relevant operation manual (DVD player, PC, etc.) carefully before making connections.
S-VIDEO
S-VIDEO S-VIDEO
AV S-VIDEO AV
AV
AV
Y/P
B
/P
R
Y/P
B
/P
R
PC-AUDIO
ANALOG RGB
AV
S-VIDEO
DVI

10
LC-30HV6U
Appendix
PC compatibility chart
Apple and Macintosh are registered trademarks
of Apple Computer, Inc.
DDCisaregistered trademarkof Video Electronics
Standards Association.
Power Management is a registered trademark of
Sun Microsystems, Inc.
VGA and XGA are registered trademarks of
International Business Machines Co., Inc.
PC/MAC Resolution Horizontal Frequency Vertical Frequency VESA Standard
PC 31.5 kHz
37.9 kHz
31.5 kHz
37.9 kHz
31.5 kHz
37.9 kHz
37.5 kHz
43.3 kHz
31.5 kHz
35.1 kHz
37.9 kHz
48.1 kHz
46.9 kHz
53.7 kHz
48.4 kHz
56.5 kHz
60.0 kHz
68.7 kHz
45.0 kHz
48.1 kHz
64.0 kHz
34.9 kHz
49.7 kHz
60.2 kHz
640 x 400
720 x 400
VGA
640 x 480
WVGA 848 x 480
SVGA
800 x 600
1024 x 768XGA
1280 x 720
WXGA 1280 x 768
SXGA 1280 x 1024
VGA 640 x 480
MAC13"
XGA 1024 x 768
MAC19" SVGA 832 x 624
MAC16"
60 Hz
85 Hz
60 Hz
85 Hz
60 Hz
72 Hz
75 Hz
85 Hz
60 Hz
56 Hz
60 Hz
72 Hz
75 Hz
85 Hz
60 Hz
70 Hz
75 Hz
85 Hz
60 Hz
60 Hz
60 Hz
67 Hz
75 Hz
75 Hz
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
RS-232C port specifications
Return codeCommand 4-digits Parameter 4-digits
PC Control of the System
•When a program is set, the Display can be controlled from the PC using the RS-232C terminal.
The input signal (PC/AV) can be selected, the volume can be adjusted and various other adjustments and
settings can be made, enabling automatic programmed playing.
•
Attach an RS-232C cable cross-type (commercially available) to the supplied Din/D-Sub RS-232C for the
connections.
NOTE
•This operation system should be used by a person who is accustomed to using computers.
Communication conditions
Set the RS-232C communications settings on the PC to match the display’s communications conditions.
The Display’s communications settings are as follows:
Baud rate:
Parity bit:
Data length:
Stop bit:
Flow control:
9,600 bps
8 bits
None
1 bit
None
Command format
Communication procedure
Send the control commands from the PC via the RS-232C connector.
The display operates according to the received command and sends a response message to the PC.
Do not send multiple commands at the same time. Wait until the PC receives the OK response before sending
the next command.
Eight ASCII codes CR+
Command 4-digits:Command. The text of four characters.
Parameter 4-digits:Parameter 0 –9, x, blank, ?
Parameter
Input the parameter values, aligning left, and fill with blank(s) for the remainder. (Be sure that 4 values are input for the
parameter.)
When the input parameter is not within an adjustable range, “ERR”returns. (Refer to “Response code format”.)
No problem to input any numerical value for “x”on the table.
When “?”is input for some commands, the present setting value responds.
C1 C2 C3 C4 P1 P2 P3 P4
0055
100
30
0009
0
–
????
?

11
LC-30HV6U
Command table •About the command except being indicated here, it is outside the guarantee range of operation.
CONTROL ITEM COMMAND
PARAMETER
CONTROL CONTENTS
POWER SETTING It shifts to standby.
It input-switches by the toggle. (It is the same as an input change key)
It input-switches to TV. (A channel remains as it is. (Last memory))
It input-switches to INPUT1~INPUT4.
It input-switches to PC.
An input change is also included.
Although it can choose now, it is toggle operation in inside.
Although it can choose now, it is toggle operation in inside.
(Toggle)
Input terminal number (1–4)
AUTO
AV-Y/C
COMPONENT
AUTO
AV-Y/C
COMPONENT
DVI
(Toggle)
STANDARD
MOVIE
USER
GAME
DYNAMIC (Fixed)
DYNAMIC
Volume (0–60)
AV mode. (±10)
PC mode. (0–180)
AV mode. (±20)
PC mode. (0–99)
Only PC mode. (0–180)
Only PC mode. (0–40)
(Toggle) [AV]
An input change is included if it is not TV display.
In Air, 2–69ch is effective.
In Cable, 1–125ch is effective.
If it is not TV display, it will input-switch to TV.
If it is not TV display, it will input-switch to TV.
Change toggle operation of tuner A/B.
Toggle operation of a closed caption.
(Toggle)
Side Bar [AV]
S.Stretch [AV]
Zoom [AV]
Stretch [AV]
Normal [PC]
Stretch [PC]
Dot by Dot [PC]
Zoom [PC]
On
Off
One screen
Twin screens
The channel number of TV
The channel number of TV +1
The channel number of TV –1
(Toggle)
(Toggle)
OFF
CC1
CC2
T1
T2
(1–125)
AUTO
POWR
ITGD
ITVD
IAVD
IPCD
INP1
INP3
INPUT SELECTION A TOGGLE
INPUT SELECTION B
AV MODE SELECTION
VOLUME
POSITION
VIEWMODE
Dolby Virtual
TWIN PICTURE
CHANNEL
ANT-A/B
CC
DIRECT
CH UP
CH DOWN
CHANNEL
H-POSITIONH-POSITION
V-POSITION
CLOCK
PHASE
INPUT 1
INPUT 3
AVMD
VOLM
HPOS
VPOS
CLCK
PHSE
ACDV
TWI N
DCCH
CHUP
CHDW
ANTS
CLCP
WIDE
0
x
0
*
x
0
0
1
2
3
1
2
0
*
*
*
*
*
0
0
*
x
x
x
0
1
2
3
4
5
1
1
2
0
1
2
3
4
5
6
7
8
*
*
1
2
3
4
5
6
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
*
*
*
*
*
*
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
*
*
*
*
*
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
TV
INPUT1-4
PC
Appendix
NOTE
•If an underbar (_) appears in the parameter column, enter a space.
•If an asterisk (*) appears, enter a value in the range indicated in brackets under CONTROL CONTENTS.
•As long as that from which the parameter ( ) in the table is a numerical value, it may write anything.
Return code (0DH)
Response code format
Normal response
Problem response (communication error or incorrect command)
Return code (0DH)
OK
ERR
×
Basic adjustment settings
AV input mode menu items
List of AV menu items to help you with
operations
OPC
Backlight
Contrast
Brightness
Color
Tint
Sharpness
Advanced
C.M.S.
ColorTemp.
Black
3D-Y/C
Monochrome
Film Mode
I/P Setting
Picture
No Signal Off
No Operation Off
EZ Setup
CH Setup
Speaker
Input Signal
Parental CTRL
Position
Stretch Mode
Picture Flip
Language
Treble
Bass
Balance
Dolby Virtual
Audio Only
Input Select
DNR
Audio Out
Quick Shoot
Audio
Power Control
Setup
Option
PC input mode menu items
List of PC menu items to help you with
operations
OPC
Backlight
Contrast
Brightness
Red
Green
Blue
C.M.S.
Picture
Power Management
Speaker
Input Signal
Auto Sync.
Fine Sync.
Picture Flip
Language
Audio
Power Control
Setup
Treble
Bass
Balance
Dolby Virtual
Option
Audio Only
Audio Out
Quick Shoot

12
LC-30HV6U
DIMENSIONS
Unit: inch/(mm)
21
29
/ 64 (545)
12(305)
30
5
/ 32 (766)
25
23
/ 64 (644.2)
15
3
/
16
(385.8)
19
9
/
16
(497)
23
15
/
16
(608)
16
39
/
64
(422)
2
9
/
32
(58)
3
15
/ 32 (88)
3
7
/ 64 (79)
3
15
/ 16 (100)
23
/
32
(18.5)
3
15
/
(100)

13
LC-30HV6U
REMOVING OF MAJOR PARTS
Ë Ë
Ë Ë
Ë Display
1. Take off bottom terminal cover.
2. Take off the table stand by removing 6 screws.
3. Take off the speaker by removing 4 screws and disconnecting speaker terminals.
4. Take off the cabinet B by removing 18 screws and releasing the cabinet A’s 6 hooks.
5. Take off the center angle by removing 8 screws and disconnecting 1 lead wire from the fan.
6. Take off the top cover assembly by removing 2 screws and detaching the connector.
7. Take off the insulating spacer by removing 2 screws.
Cabinet B
Terminal Cover
Table Stand
Speaker
4
4
3
4
4
2
1
CN712
P2103
P2002
P131 P130
Center Angle
Shield Sheet
MAIN PWB
POWER PWB
Top Cover Ass'y
KEY PWB
5
75
6

14
LC-30HV6U
8. Detach each connector
(8 from the LCD Control PWB, 7 from the Main PWB, 4 from the Power PWB, 7 from the Inverter PWB, 1 from the
speaker-Jack PWB, 1 from the R/C, LED PWB, 6 from the Inverter-GND PWB, 3 from the Audio PWB.)
9. Take off the 1-Bit Amp. PWB chassis by removing 3 screws.
10.Take off the LCD Control PWB by removing 4 screws.
11.Take off the Speaker retaining angle by 3 screws.
12.Take off the R/C, LED PWB by 2 screws.
13.Take off the Speaker-Jack PWB by 2 screws.
14.Take off the Speaker retaining angle by 3 screws.
SC2001
SC4605
SC4601 SC4604 SC4602
P2004 CN724
CN722
P6564
P6551
P6553
P6555
P6558
P6560
P6562
P8605
P8603
P8604
P8606
P8607
P8601
P8602
P3204
P3803
P3903
P2101
P2102
P201
P101
CN209
P2106
P2004
P2104
P3801
P3804
SC4601 SC4603
P7701
CN723
INVERTER PWB
R/C, LED Unit AUDIO PWB MAIN PWB
POWER PWB
LCD CONTROL PWB
SPEAKER-JACK PWB
INVERTER-GND
PWB
8
8
88
8
8
8
8
8
8
LCD CONTROL PWB
1-Bit Amp. PWB
Chassis
R/C, LED PWB SPEAKER-JACK
PWB
Speaker Retaining Angle
Speake Retainig
Angle
10
12 13
11
9
14

15
LC-30HV6U
15.Take off the Inverter PWB by removing 4 screws.
16.Take off the Power PWB by removing 5 screws. Remove insulation sheet.
17.Take off the Main PWB by removing 6 screws.
18.Take off the Audio PWB by removing 3 screws
19.take off the Inverter-GND PWB by removing 2 screw.
20.Take off the chassis frame by removing 1 screw.
21.Take off the reinforcement angles by removing 3 screws from each angle.
22.Take off the LCD panel unit by removing 2 screws.
INVERTER-GND
PWB
AUDIO PWB
MAIN PWB POWER PWB
Reinforcement
Angle
INVERTER PWB
Audio PWB
Shield
Shield
19
Reinforcement
Angle
Chassis Frame
18 17
16
21 15
22
21
18
20

16
LC-30HV6U
•Precautions in handling the LCD panel
1. Handle the liquid crystal panel in a clean room (Humidity: 50% or more).
2. Be sure to wear an earth wristband.
3. Be careful not to drop and shock the liquid crystal panel.
4. Use an ionizer (within 30 cm).
23.Remove the four lock screws from the LCD panel.
24.Peel off the conductive sheet.
25.Detach the deflection sheet, prism sheet, diffusion sheet and diffusion panel.
26.Remove the two lock screws from ITO earth spring.
27.Remove the three lock screws from each of the top and bottom lamp holders, and detach the top and bottom lamp
holders.
28.Detach the lamp assembly from the lamp clip.
Lamp Clip (4 pcs.)
(LHLDZA085WJZZ)
Back Shield Ass'y
Reflection Sheet
Reflection Sheet
Lamp Fixing Holder (Bottom)
(LHLDZA084WJKZ)
Lamp Fixing Holder (Top)
(LHLDZA083WJKZ)
ITO Earth Spring
(MSPRP1220CEFW)
Diffusion Sheet
(PSHEPA110WJZZ)
Prism Sheet
(PSHEPA179WJZZ)
30" LCD Panel Unit
(RLCDTA026WJZZ)
Deflection Sheet
(PSHEPA108WJZZ)
Deflection Panel
(PCOVUA017WJZZ)
Lamp Fixing Holder (Top)
(LHLDZA083WJKZ)
Lamp Fixing Holder (Bottom)
(LHLDZA084WJKZ)
Lamp
(KLMP-A021WJZZ)
Condutive Sheet
28
25
27
24
23
26 27

17
LC-30HV6U
ADJUSTMENT PROCEDURES
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. Preparation
Note that the unit should be replaced when the receiver IC (IC2206), CONFIG ROM (IC2202) or microprocessor
(IC2004) is replaced.
Applicable unit: DKEYHC094FE51
2. Adjusting procedure
•VLS BIAS (15V) voltage adjustment
•Entering the adjustment process mode →COM BIAS adjustment →Background adjustment
3. How to enter the adjustment process mode
(1) When the AVC center is not connected
•Turn OFF the monitor main power. Turning ON the monitor main power while pressing the "INPUT" key
and "VOL (–)" key on the top face of the monitor main body together will establish the "Monitor Process"
mode.
(2) When the AVC center is connected
•Turn OFF the monitor main power. Turning ON the monitor main power while pressing the "CH (Ù)" key
and "VOL (+)" key on the top face of the monitor main body together will establish "Monitor Process"
mode.
In each case of (1) and (2), "<K>" is displayed in the upper left portion of the screen.
Then, pressing any key will bring you to the first page of the "Monitor Adjustment" mode.
~To exit the adjustment process mode, turn OFF the main power.
4. Adjustment process mode key operation table
Key
Cursor UP
Cursor DOWN
Cursor RIGHT
Cursor LEFT
ENTER
INPUT
CH (ù)
CH (Ù)
VOL (+)
VOL (–)
Function 1 (when on the left side of a page)
Moving up by one item or moving to the
previous page (when at the top)
Moving down by one item or moving to the next
page (when at the bottom)
Moving to the right by one item or moving to
another page (in the case of the initial page)
Moving to the left by one item or moving to
another page (in the case of the initial page)
Test pattern off
Moving to the next page
Moving down by one item or moving to the next
page (when at the bottom)
Moving down by one item or moving to the next
page (when at the bottom)
Moving to the right by one item or moving to
another page (in the case of the initial page)
Moving to the left by one item or moving to
another page (in the case of the initial page)
Function 2 (when changing a numeric value)
Incrementing the adjustment value by one or
executing the item (in the case of W or R items)
Decrementing the adjustment value by one or
executing the item (in the case of W or R items)
Moving to the right by one item
Moving to the left by one item
Executing the item (in the case of W or R
items)
Moving to the next page
Incrementing the adjustment value by one or
executing the item (in the case of W or R items)
Decrementing the adjustment value by one or
executing the item (in the case of W or R items)
Moving to the right by one item
Moving to the left by one item

18
LC-30HV6U
5. Adjustment
5-1.VLS BIAS (13V) voltage adjustment (R4231)
Connect a digital volt meter to TL4122 (or C4180+) on the LCD Control PWB and make a adjustment with
the R4231 so that the voltage becomes 13.00V±0.05V.
5-2.COM BIAS adjustment
Shift to the "COM BIAS" item with the cursor UP/DOWN key and select a numeric value with the cursor
RIGHT/LEFT key.
Changing the numeric value with the cursor UP/DOWN key will make appear the test pattern. Make an
adjustment so that the flicker near the center of the screen is minimized.
5-3.Background adjustment
Start up the set with the AVC System connected and adjust the background of the monitor.
•Procedure
-1) Display the adjustment screen (200-level gray scale on High side, 48-level gray scale on Low side).
-2) Adjust "R OFFSET", "G OFFSET" and "B OFFSET" so that the 200-level gray scale pattern becomes
normative.
Adjust the chromaticity of the High pattern (in the left portion of the screen) so that x = 0.290 and y =
0.299.
-3) Adjust "R GAMMA", "G GAMMA" and "B GAMMA" so that the 48-level gray scale pattern becomes
normative.
Adjust the chromaticity of the Low pattern (in the right portion of the screen) so that x = 0.276 and y
= 0.278.
The above-mentioned adjustments can be made according to the following procedure.

19
LC-30HV6U
RS232C command table
Command
MSET1001
MOFR~~~~
MOFG~~~~
MOFB~~~~
MGAR~~~~
MGAG~~~~
MGAB~~~~
MINF0000
MINF0001
MINF0002
Function
Used to start the background adjustment.
Used to adjust the value of R OFFSET.
Used to adjust the value of G OFFSET.
Used to adjust the value of B OFFSET.
Used to adjust the value of R GAMMA.
Used to adjust the value of G GAMMA.
Used to adjust the value of B GAMMA.
Used to display the R GAMMA table.
Used to display the B GAMMA table.
Used to display the G GAMMA table.
Remarks
The adjustment ends with a numeric value other than 1001.
Range: 0000 to 0512 (Initial value: 0255)
Range: 0000 to 0512 (Initial value: 0255)
Range: 0000 to 0512 (Initial value: 0255)
Range: 0000 to 0255 (Initial value: 0100)
Range: 0000 to 0255 (Initial value: 0100)
Range: 0000 to 0255 (Initial value: 0100)
(1) Adjusting method using RS-232C
•Get a personal computer with a COM port (RS-232C) equipped with WINDOWS 95/98/me/2000/xp and
a RS-232C crossing cable
•Start up the set with the RS-232C cable connected.
•Start up the terminal software.
(Freeware products available on the Internet can be used.)
•Make setting as shown below.
Baud rate : 9600
Data : 8 bits
Parity : None
Stop : 1 bit
Flow control : None
•If the above setting is made correctly, pressing the "SET/ENTER" key on the PC will make "ERR" appear
on the terminal software.
•In this state, entering a command shown in the table bellow and pressing the "SET/ENTER" key will allow
you to make an adjustment.
If "OK" is displayed on the terminal software after the "SET/ENTER" key is pressed, the command has
been entered successfully.
If "ERR" is displayed, enter the command again.

20
LC-30HV6U
Lamp error detection
1. Feature description
This liquid-crystal colorTV incorporates a lamp error detection feature (lamp error detection) that automatically
turns OFF the power for safety under abnormal lamp or lamp circuit conditions.
If anything is wrong with the lamp or lamp circuit or the lamp error detection feature is activated for some
reason, the following will result.
1The power ofTV main body is turned OFF about 13 seconds after it is turned ON. (The power LED on
the front of the TV turns red from green and keeps blinking in red (ON for 250ms and OFF for 1sec).)
2If 1occurs five times consecutively, it becomes impossible to turn ON the power. (The power LED
keeps blinking in red (ON for 250ms and OFF for 1sec).)
2. Measures
2-1.Checking with lamp error detection OFF
Disconnect the cable connected to the AVC System Turn OFF the monitor main power. Turning ON the
monitor main power while pressing the "INPUT" key and "VOL (–)" key together will establish the "Monitor
Process" mode ("<K>" is displayed).
Then, pressing any key will bring you to the first page of the "Monitor Process" mode.
This allow you to check the lamp and lamp circuit for abnormal conditions.
Check that "L ERR RESET" on the fourth line of the first page of the "Monitor Process" mode is 1 or more.
If it is 1 or more, a lamp error has been detected.
2-2.Reset of lamp error count
After checking the lamp and lamp circuit for abnormal conditions, reset the lamp error count. Move the
arrow to "L ERR RESET" on the fourth line of the first page of the "Monitor Process" mode with the cursor
UP/DOWN key and select the numeric value of "L ERR RESET" with the cursor RIGHT/LEFT key. In this
state, press the cursor UP/DOWN key to reset it to "0".
Then perform operation checking and check that the lamp error detection feature is not activated.
First page of monitor process mode
Values specific to each monitor
Resetting to "0"
SERVICE
NOTHING
COMBIAS
NOTHING
→L ERR RESET
LCD
PATTERN
SOUND AND FAN
OTHER
VER M1.~~ CEEP4
30AD1 076
077
064
5