Sharp LC-30AA1M User manual

LC-30AA1M
LC-30AA1H
SERVICE MANUAL
LIQUID CRYSTAL TELEVISION
MODELS
LC-30AA1M
LC-30AA1H
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.
CONTENTS
Page
»IMPORTANT SERVICE SAFETY PRECAUTION .....2
»SPECIFICATIONS................................................4
»OPERATION MANUAL ........................................5
»DIMENSIONS ....................................................12
»REMOVING OF MAJOR PARTS........................13
»ADJUSTMENT PROCEDURES.........................17
»TROUBLE SHOOTING TABLE ..........................23
»OVERALL WIRING DIAGRAM /
CHASSIS LAYOUT ............................................28
Page
»BLOCK DIAGRAM .............................................30
»DESCRIPTION OF SCHEMATIC DIAGRAM.....32
»SCHEMATIC DIAGRAM ....................................33
»PRINTED WIRING BOARD ASSEMBLIES .......66
»PARTS LIST.......................................................88
»PACKING OF THE SET ...................................109
OUTLINE
This model is different in the display size from the LC-37AA1M/H.
This service manual accordingly describes the display alone. For the entire AVC System, refer to the LC-
37AA1M/H Service Manual (S24O4LC37AA1M).
SHARP CORPORATION
S64U1LC30AA1M

2
LC-30AA1M
LC-30AA1H
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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 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 theAC cord directly into a 110~240 voltAC outlet.
»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 anAC 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 theAC 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.
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
50k ohm
10W
TO EXPOSED
METAL PARTS CONNECT TO KNOWN EARTH
GROUND
0.15 µF
TEST PROBE
CAUTION: FOR CONTINUED
PROTECTION AGAINSTA RISK OF
FIRE REPLACE ONLY WITH SAME
TYPE FUSE.
AVC SIDE: F701 (2A, 250V) FUSE.
LCD SIDE: F701, F702 (4A, 250V),
F708 (500mA, 250V), F730 (2A,
125V), F703, F6551, F6552, F6553,
F6554, F6555, F6556 (2A, 250V)
AV

3
LC-30AA1M
LC-30AA1H
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

4
LC-30AA1M
LC-30AA1H
SPECIFICATIONS
Specifications are subject to change without prior notice.
Item
Video Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV
Function PAL: B/G, D/K, I SECAM: B/G, D/K NTSC: M
VHF/UHF 44.25-863.25 MHz
CATV Hyper-band, S1–S41ch
TV-Tuning System Auto Preset 99 ch, Auto Label, Auto Sort
STEREO/BILINGUAL NICAM/A2
Terminals AV in, S-VIDEO in, COMPONENT VIDEO in
INPUT 2 AV in, S-VIDEO in
INPUT 3 AV in, S-VIDEO in, COMPONENT VIDEO in
ANTENNA 75 ΩDin Type
INPUT 4 S-VIDEO, AV in
PC INPUT 15 Pin mini D-Sub, Audio in (Ø 3.5mm jack)
OSD language English/Chinese/Arabic
Power Requirement AC 110–240 V, 50/60 Hz
Power
Consumption 34 W (1.2 W Standby)
Weight 5.4 kg (w/o stand), 5.5 kg (with stand)
Accessories Operation manual, Remote control unit (×1), System cable (×1), AC cord
(×2), "AA" size battery (×2), Stand unit (×1), Cable clamp (Large ×1, Small
×1), Antenna cable (×1)
TV-standard (CCIR)
Receiving
Channel
Rear INPUT 1
Front
LCD panel
Number of dots
Brightness 430 cd/m2
Viewing angles H : 170°V : 170°
Audio amplifier 10W ×2
Speakers Ø 8 cm 2pcs, Ø 2.5 cm 2pcs
AVC
System
MONITOR OUTPUT Audio (Variable, Fixed), S-VIDEO out, VIDEO out
Headphones Ø 3.5mm jack
AVC System
Display
AVC System
Display
92 W (0.3 W Standby)
DC OUTPUT DC 6.5V 7W MAX
30" LCD COLOUR TV, Model:LC-30AA1M/H
30" Advanced Super View & BLACK TFT LCD
2,949,120 dots (1280 ×768 ×3 dots)
13.1 kg (Display only)
16.1 kg (with Display and speakers)
20.1 kg (with Display, speakers and stand)
SP OUTPUT External speaker output terminal (L and R)

5
LC-30AA1M
LC-30AA1H
OPERATION MANUAL
Part names
Display
OPC indicator*
STANDBY/ON indicator
OPC sensor
Remote control sensor
*OPC: Optical Picture Control
SLEEP timer indicator
MAIN POWER
button ( )
STANDBY/ON button
()
INPUT
button
VOLUME buttons
()
CHANNEL buttons
(CH /
/
)
CLEAR*
(POWER) button INPUT 4 terminal (S-VIDEO)
PC INPUT terminal (AUDIO)
INPUT 4 terminals (AUDIO)
PC INPUT terminal
(ANALOG RGB)
*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 USER.
•TV channel resets to channel 1.
•Dual screen resets to normal.
•Audio setting initialises.
•Dolby Virtual resets to OFF.
•Image position is initialised.
NOTE
•Pressing CLEAR will not work if the System is in standby mode (indicator lights red).
•Pressing CLEAR will not delete channel preset or password. See page for resetting the password when you know it.
See page for initialising to the factory preset values when you forget your password.
AVC System
STANDBY/ON indicator
INPUT 4 terminal (VIDEO)
(How to open the door)
Front view
Rear view
Headphone
(When connecting headphones,
the sound from the speakers is
muted.)
ANTENNA INPUT
terminal
INPUT 3 terminal
(S-VIDEO)
INPUT 3 terminal
(VIDEO)
INPUT 3 terminals
(Y, P
B
, P
R
)
INPUT 3 terminals
(AUDIO)
INPUT 1
terminal
(S-VIDEO)
INPUT 1
terminal
(VIDEO)
INPUT 1 terminals
(Y, P
B
, P
R
)
INPUT 1 terminals
(AUDIO)
RS-232C terminal
DISPLAY OUTPUT1
terminal
AC INPUT terminal
DISPLAY OUTPUT2
terminal
INPUT 2 terminals
(AUDIO)
INPUT 2 terminal
(VIDEO)
INPUT 2 terminal
(S-VIDEO)
MONITOR OUTPUT terminals (AUDIO)
MONITOR OUTPUT terminal (VIDEO)
MONITOR OUTPUT terminal
(S-VIDEO)
DC OUTPUT terminal
(Terminal for expanded
functionality in the near future.)
DISPLAY OUTPUT3
terminal
EXTERNAL
SPEAKER
terminals

6
LC-30AA1M
LC-30AA1H
Part names
1 (STANDBY/ON)
To switch the power on and off.
2 (FREEZE/HOLD forTELETEXT)
TV/External input mode: Change the still image mode.
TELETEXT mode: Freeze a multi-page on screen while other
pages are automatically updated. Press again to return to the
normal image.
3 (DUAL screen)
Set the dual picture mode. Press again to return to normal view.
4 (WIDE MODE/T/B/F)
TV/External input mode: Change the wide image mode.
TELETEXT mode: Set the area of magnification. (full/upper half/
lower half)
5 AV MODE
Select a video setting: AV MODE (USER, STANDARD, DYNAMIC,
MOVIE, GAME), PC MODE (USER, STANDARD)
6 SOUND
Select the sound multiplex mode.
7*
Select Virtual Dolby Surround settings.
8 (Flashback)
Press to return to the previous channel in normal viewing mode.
Press to return to the previous page in TELETEXT mode.
9/(VOLUME)
Set the volume.
10 (Reveal hidden forTELETEXT)
TELETEXT mode: Display hidden characters.
11 (SUBPAGE forTELETEXT)
TELETEXT mode: Change the picture mode for sub-page selecting.
12 MENU
Display the MENU screen.
13 (CHANNEL INFORMATION)
Display the channel information and time.
14 (INPUT SOURCE)
Select an input source. (TV, INPUT 1, INPUT 2, INPUT 3, INPUT 4,
PC)
15 SLEEP
Set the Sleep timer.
16 (MUTE)
Mute the sound.
17 0 – 9
TV/External input mode: Set the channel.
TELETEXT mode: Set the page.
18 (Digit for channel select)
Change the digits of the selected TV channel.
19 Colour (RED/GREEN/YELLOW/BLUE)
TELETEXT mode: Select a page.
20 CH /CH (/ )
TV/External input mode: Select the channel.
TELETEXT mode: Set the page.
21 (TOP Overview for TELETEXT)
TELETEXT mode: Display an index page for CEEFAX/FLOF
information. TOP Overview for TOP programme.
22 (TELETEXT)
Select the TELETEXT mode. (all TV image, all TEXT image, TV/TEXT
image)
23 RETURN
MENU mode: Return to the previous menu screen.
24 ENTER
Execute a command.
Return to the initial image position after moving with .
25 /// (Cursor)
Select a desired item on the setting screen.
Move the picture on the screen.
///
1
2
3
4
5
6
7
8
9
10
11
12
14
15
13
16
17
18
19
20
21
22
23
24
25
NOTE
•When using the remote control unit, point it
at the Display.
•Manufactured under license from BBE
Sound, Inc.
Licensed by BBE Sound, Inc. under
USP4638258, 5510752 and 5736897. BBE
and BBE symbol are registered trademarks
of BBE Sound, Inc.
*Manufactured under license from Dolby
Laboratories. “Dolby”,“Pro Logic”and the
double-D symbol are trademarks of Dolby
Laboratories.
Remote control unit
Preparation
Where to place the System
“System”means the Display and AVC System. First select the location where to place the System.
1
2
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.
(See page 7 for details.)
Setting the System in place
Handling the Display
CAUTION
•The LC-37AA1M Display weighs about 25 kg and the LC-
30AA1M Display weighs about 20 kg. Move it with two or more
people.
•Do not remove the stand from the Display unless using an
optional bracket to mount it.
•Keep enough space above and behind the Display.
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.
System cable
Display AVC System
If you want to keep a longer distance between the
Display and AVC System, please purchase the optional
system cable AN-07SC1 (about 7 meters). (See page 76.)
IMPORTANT
•You cannot use external speakers when you are using the optional
system cable (AN-07SC1).
10 cm
or more
5 cm or more 5 cm or more
on both sides
Keep enough space
There is an exhaust fan
on the right side.
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.

7
LC-30AA1M
LC-30AA1H
Preparation
System cable
AVC System (rear view)
AC cord
Display (rear view)
AC cord
System cable
(GREY)
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.
Setting the System
ËLC-37AA1M
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.
Press down the two
upper hooks to remove
the cover toward you.
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 NOTTOUCH UN-INSULATED PARTS OF ANY CABLES WITH THE
AC CORD CONNECTED.
Press the two hooks
toward the centre of the
Display and remove the
cover toward you.
(GREY)
(WHITE)
(BLACK)
(BLACK)
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.

8
LC-30AA1M
LC-30AA1H
Preparation
Removing the stand and speaker
This unit has detachable type speaker.
You can detach the system speaker when using external speaker.
Before removing (or attaching) speaker, unplug the AC cord from the AC outlet and the system cable from 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.
Before attaching/removing speaker
•Before performing work make sure to turn off the System.
•Before performing work spread cushioning over the base area to lay the Display on. This will prevent it from
being damaged.
The graphics in the explanation below use the LC-37AA1M.
CAUTION
•The speaker terminals on the Display are only for the attached speaker. Do not connect any third party plug or speaker
to the terminal.
•Insert the speaker plug completely into the terminal.
NOTE
•To attach the speaker and stand, perform the above steps in reverse order.
2
34
Unfasten the screws used to secure the speaker in
place.
Take hold of the speaker and slowly slide it
sideways.
(The speaker plugs are still inserted, so make
sure not to pull the speaker too far.)
Remove the speaker plugs from the terminal on the
Display.
(Do not remove the plug by pulling the cord.)
Nowthe speaker can be removingfromthe Display.
Speaker plug
1
Unfasten the screws used to secure the stand
in place, and then detach the stand from the
Display.
(Holdthe stand so it willnot dropthe stand from
the edge of the base area.)
Setting the Display on the wall
Setting the AVC System with the stand
CAUTION
•Installing the LCD Colour TV requires special skill that should only be performed by qualified service personnel.
Customers should not attempt to do the work themselves. SHARP bears no responsibility for improper mounting or
mounting that results in accident or injury.
1
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.
Hanging on the wall
AN-37AG1 wall mount bracket. (See the bracket instructions for details.)
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.
2
Attach each cushion to
the stand as shown.
3
Fit 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
4
Attach 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.
Bulge
Attaching point
Attaching point
Vertical mounting Angular mounting
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.
5°

9
LC-30AA1M
LC-30AA1H
Using external equipment
HDTV tuner
AVC System
(rear view)
AVC System
(front view)
AV Receiver VCR
Game console/Camcorder
PC
You can connect many types of external equipment to your System, like a VCR, DVD player, HDTV tuner, PC,
game console and camcorder. To view external source images, select the input source from on the remote
control unit or INPUT on the Display.
CAUTION
•To protect all equipment, always turn off the AVC System before connecting to a VCR, DVD player, HDTV 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.
DVD player Rear view
Connecting external speakers
When using external speakers
•Change the speaker setting to external speakers. (See
page 51.)
Make sure to connect the speaker jack and cable
polarity ( ,) properly
•The speaker jacks have plus ( ) and minus ( ) polarity.
•Plus is red and minus is black.
•The cables are also divided into plus and minus.
•When connecting the left/right speakers, be sure to
connect the plus/minus jacks with the correct cables.
NOTE
•Unplug the AC cord from the AC outlet before installing
the speakers.
CAUTION
•Make sure external speakers have 4 ohm and 10 watt
specifications.
•Connect the plus/minus jacks with the correct cables.
Incorrect connection may cause a short.
How to connect the speaker cable
Push down the tab.
Insert the end of the
cable.
1
2
3
Put the lid back down.

10
LC-30AA1M
LC-30AA1H
Basic adjustment settings
AV input mode menu items
List of AV menu items to help you with operations
Contrast
Brightness
Colour
Tint
Sharpness
Advanced
C.M.S.
ColourTemp
Black
Monochrome
Film Mode
I/P Setting
DNR
Picture
Power Save
No Signal Off
No Operation Off
Auto Installation
Programme Setup
Child Lock
Position
WSS
4:3 Mode
Full Mode*
Rotate
Language
Text Lang.
Treble
Bass
Balance
Dolby Virtual
Speaker
Input Select
Input Label
Audio Out
Cool Climate
Colour System
Booster
Audio
Power Control
Setup
Option
PC input mode menu items
List of PC menu items to help you with operations
Contrast
Brightness
Red
Green
Blue
C.M.S.
Picture
Power Save
Power Management
Input Signal
Auto Sync.
Fine Sync.
Rotate
Language
Audio
Power Control
Setup
Option
Treble
Bass
Balance
Dolby Virtual
Speaker
Audio Out
Cool Climate
* Full Mode is only displayed for LC-30AA1M.
Appendix
640 ×400
720 ×400
640 ×480
800 ×600
832 ×624
1024 ×768
1280 ×768
85 Hz
70 Hz
85 Hz
60 Hz
65 Hz
72 Hz
75 Hz
85 Hz
56 Hz
60 Hz
72 Hz
75 Hz
85 Hz
74.5 Hz
60 Hz
70 Hz
75 Hz
85 Hz
60 Hz
1366 ×768* 60 Hz
1280 ×1024 60 Hz
PC compatibility chart
Remarks
Macintosh 13 (67 Hz)
Macintosh 16
Macintosh 19
Resolution Frequency
Apple and Macintosh are registered trademarks
of Apple Computer, Inc.
DDCis a registeredtrademark of VideoElectronics
Standards Association.
Power Management is a registered trademark of
Sun Microsystems, Inc.
VGA and XGA are registered trademarks of
International Business Machines Co., Inc.
* LC-37AA1M only.

11
LC-30AA1M
LC-30AA1H
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 PCs.
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 four 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
????
?
+
Appendix
Commands
P
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
A
A
A
A
A
A
V
H
H
V
V
C
P
POWER OFF (STANDBY)
INPUT SWITCHING (TOGGLE)
TV (CHANNEL FIXED)
TV (CHANNEL SELECTION) (1 –99)
INPUT1 –4 (1 –4)
PC
INPUT1 (AUTO)
INPUT1 (COMPONENT)
INPUT1 (S-VIDEO)
INPUT1 (VIDEO)
INPUT2 (AUTO)
INPUT2 (S-VIDEO)
INPUT2 (VIDEO)
INPUT3 (AUTO)
INPUT3 (COMPONENT)
INPUT3 (S-VIDEO)
INPUT3 (VIDEO)
INPUT4 (AUTO)
INPUT4 (S-VIDEO)
INPUT4 (VIDEO)
TOGGLE
STANDARD
DYNAMIC
MOVIE
GAME
USER
VOLUME (0 –60)
H-POSITION (AV) (10–10)
H-POSITION (PC) (0 –180)
V-POSITION (AV) (20–20)
V-POSITION (PC) (0 –99)
CLOCK (0 –180)
PHASE (0 –40)
POWER SETTING
INPUT SELECTION A
INPUT SELECTION B
AV MODE
SELECTION
VOLUME
POSITION
O
T
T
T
A
P
N
N
N
N
N
N
N
N
N
N
N
N
N
N
V
V
V
V
V
V
O
P
P
P
P
L
H
W
G
V
V
V
C
P
P
P
P
P
P
P
P
P
P
P
P
P
P
M
M
M
M
M
M
L
O
O
O
O
C
S
R
D
D
D
D
D
1
1
1
1
2
2
2
3
3
3
3
4
4
4
D
D
D
D
D
D
M
S
S
S
S
K
E
0
x
0
*
*
x
0
1
2
3
0
1
2
0
1
2
3
0
1
2
0
1
2
3
4
5
*
*
*
*
*
*
*
_
_
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
*
*
*
*
*
*
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
*
*
*
*
*
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
CONTROL ITEM COMMAND PARAMETER CONTROL
CONTENTS
W
W
W
W
W
W
W
W
W
W
W
W
A
A
A
T
T
D
C
C
T
T
D
TOGGLE
NORMAL (AV)
FULL 14:9 (AV)
ZOOM 14:9 (AV)
PANORAMA (AV)
FULL (AV)
CINEMA 16:9 (AV)
CINEMA 14:9 (AV)
NORMAL (PC)
FULL (PC)
DOT BY DOT (PC)
CINEMA (PC)
TOGGLE
ON
OFF
DUAL SCREEN OFF
DUAL SCREEN ON
DIRECT CHANNEL (1 –99)
CHANNEL UP
CHANNEL DOWN
TEXT OFF
TEXT ON (TOGGLE)
DIRECT PAGE JUMP (100 –899)
WIDE MODE
Dolby Virtual
DUAL SCREEN
CHANNEL
TEXT
I
I
I
I
I
I
I
I
I
I
I
I
C
C
C
W
W
C
H
H
E
E
C
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
I
I
C
U
D
X
X
P
E
E
E
E
E
E
E
E
E
E
E
E
V
V
V
N
N
H
P
W
T
T
G
0
1
2
3
4
5
6
7
8
9
1
1
0
1
2
0
1
*
x
x
0
1
*
_
_
_
_
_
_
_
_
_
_
0
1
_
_
_
_
_
*
_
_
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
CONTROL ITEM COMMAND PARAMETER CONTROL
CONTENTS
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.
Return code (0DH)
Response code format
Normal response
Problem response (communication error or incorrect command)
Return code (0DH)
OK
ERR

12
LC-30AA1M
LC-30AA1H
DIMENSIONS
Unit: mm
Display
79
88
608
497
422
58
766
545
305
385.8
644.2
18.5
100
100

13
LC-30AA1M
LC-30AA1H
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.
Cabinet B
Terminal Cover
Table Stand
Speaker
4
4
3
4
4
2
1
CN712
P2103
P2002
P131 P130
Center Angle
MAIN PWB
POWER PWB
Top Cover Ass'y
KEY PWB
5
5
6

14
LC-30AA1M
LC-30AA1H
7. 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 theAudio PWB.)
8. Take off the 1-Bit Amp. PWB chassis by removing 3 screws.
9. Take off the LCD Control PWB by removing 4 screws.
10.Take off the Speaker retaining angle by 3 screws.
11.Take off the R/C, LED PWB by 2 screws.
12.Take off the Speaker-Jack PWB by 2 screws.
13.Take off the Speaker retaining angle by 3 screws.
SC2001
SC4605
SC4601 SC4604 SC4602
P2004 CN724
CN722
P6564
P6551
P6553
P6555
P6557
P6560
P6562
P7605
P7603
P7604
P7606
P7607
P7601
P7602
P3204
P3703
P3903
P2101
P2102
P201
P101
CN209
P2106
P2004
P2104
P3701
P3704
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
7
7
77
7
7
7
7
7
7
LCD CONTROL PWB
1-Bit Amp. PWB
Chassis
R/C, LED PWB SPEAKER-JACK
PWB
Speaker Retaining Angle
Speake Retainig
Angle
9
11 12
10
8
13

15
LC-30AA1M
LC-30AA1H
14.Take off the Inverter PWB by removing 4 screws.
15.Take off the Power PWB by removing 5 screws. Remove insulation sheet.
16.Take off the Main PWB by removing 6 screws.
17.Take off the Audio PWB by removing 3 screws
18.take off the Inverter-GND PWB by removing 2 screw.
19.Take off the chassis frame by removing 1 screw.
20.Take off the reinforcement angles by removing 3 screws from each angle.
21.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
18
Reinforcement
Angle
Chassis Frame
17 16
15
20 14
21
20
17
19

16
LC-30AA1M
LC-30AA1H
•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).
22.Remove the four lock screws from the LCD panel.
23.Peel off the conductive sheet.
24.Detach the deflection sheet, prism sheet, diffusion sheet and diffusion panel.
25.Remove the two lock screws from ITO earth spring.
26.Remove the three lock screws from each of the top and bottom lamp holders, and detach the top and bottom lamp
holders.
27.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
27
24
26
23
22
25 26

17
LC-30AA1M
LC-30AA1H
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), HDCP KEY ROM (IC2208), CONFIG
ROM (IC2202) or microprocessor (IC2004) is replaced.
Applicable unit: DKEYHC094FE52/53/54
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-30AA1M
LC-30AA1H
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-30AA1M
LC-30AA1H
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-30AA1M
LC-30AA1H
Lamp error detection
1. Feature description
This liquid-crystal color TV 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 of TV 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