Sharp Aquos LC-32GA3E User manual

LC-32GA3E
LC-37GA3E
SERVICE MANUAL
LCD COLOUR TELEVISION
MODELS
LC-32GA3E
LC-37GA3E
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
CONTENTS
Page
»IMPORTANT SERVICE SAFETY PRECAUTION .....2
»SPECIFICATIONS ...............................................4
»OPERATION MANUAL ........................................5
»DIMENSIONS ....................................................12
»REMOVING OF MAJOR PARTS .......................14
»ADJUSTMENT PROCEDURE ........................... 19
Page
»TROUBLE SHOOTING TABLE..........................36
»BLOCK DIAGRAM .............................................48
»OVERALL WIRING DIAGRAM ..........................60
»PRINTED WIRING BOARD ASSEMBLIES .......64
»PARTS LIST.....................................................100
»PACKING OF THE SET ...................................157
»SCHEMATIC DIAGRAM ........................... D1-D89
LC-32GA3E
LC-37GA3E
S84Z3LC37GA3E

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CAUTION: FOR CONTINUED
PROTECTION AGAINST A RISK OF
FIRE REPLACE ONLY WITH SAME
FUSE
LCD SIDE: F1701, F1702 (6.3A, 250V),
F1703 (2.0A, 250V)
LC-32GA3E: F7401,F7501 (6.3A, 250V)
LC-37GA3E: F7401,F7501 (10A, 250V)
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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, etc.
Replacement parts which have these special safety
characteristics are identified in this manual; electrical
components having such features are identified by “ å”
IMPORTANT SERVICE SAFETY PRECAUTION
ËService work should be perfomed only by qualified service technicians who are thor-
oughly familiar with all safety checks and the servicing guidelines which follow:
and shaded areas in the Replacement Parts Lists and
Schematic Diagrams .
For continued protection, replacement parts must be
identical to those used in the original circuit.
The use of 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 220~240 voltAC 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 anAC voltmeter having 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, 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
milliamp. rmsAC.) or more is excessive and indicates
a potential shock hazard which must be corrected
before returning the monitor to the owner.
DVM
AC SCALE
50k ohm
10W
TO EXPOSED
METAL PARTS CONNECT TO KNOWN EARTH
GROUND
0.15 µF
TEST PROBE

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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 40ºC, we recommend
you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldening
bit, contact our service station or service ranch 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 wettabillty, 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 excoeded, remove the bit from the PWB as soon as you conurm the steady
soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to tum 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.
Becareful 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

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LC-37GA3E
SPECIFICATIONS
Item
Model
32" LCD COLOUR TV
LC-32GA3E
Video Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV
Function B/G, I, D/K, L, L’
TV-Standard (CCIR)
LCD panel 32" Advanced Super View & BLACK TFT LCD
Number of dots 3,147,264 dots (1366 ×768 ×3 dots)
VHF/UHF E2–E69ch, F2–F10ch, I21–I69ch, IR A–IR Jch
CATV Hyper-band, S1–S41ch
TV-Tuning System Auto Preset 99 ch, Auto Label, Auto Sort
STEREO/BILINGUAL NICAM/A2
Receiving
Channel
Brightness 450 cd/m
2
Viewing angles H : 170°V : 170°
Audio amplifier 10W 5 2
Speakers Ø 8 cm 2pcs, Ø 2.5 cm 2pcs
Terminals
SCART (AV input, RGB input, TV output)
INPUT 2
INPUT 3 SCART (AV input/output, Y/C input, RGB input), RCA pin (Component input)
Rear
INPUT 1
UHF/VHF 75WDin type
SCART (AV input/output, Y/C input, AV Link)
ANTENNA IN
INPUT 4 S-VIDEO (Y/C input), RCA pin (AV input)
Front
AUDIO OUTPUT RCA pin (Variable/Fixed), switchable with INPUT 4
DC OUTPUT DC 9V 7W MAX
SPEAKER External speaker output terminal (L and R)
OSD language English/German/French/Italian/Spanish/Dutch/Swedish/Portuguese/Finnish/Turkish/Greek/
Russian/Polish
Power Requirement AC 220–240 V, 50 Hz
Power Consumption 143 W (3 W Standby) (Method IEC60107)
Weight
Accessories Operation manual, Remote control unit (51), AC cord (51), “AAA” size battery (52)
Headphones Ø 3.5mm jack (Audio output)
CENTRE
CHANNEL
INPUT RCA pin
RS-232C D-sub 9pin male connector
INPUT 5 Ø 3.5 mm jack (Audio input), DVI-I (DVI-I input)
16.2 kg (Display only), 19.5 kg (with Display
and speaker), 24.1 kg (with Display, speaker
and stand)
37" LCD COLOUR TV
LC-37GA3E
37" Advanced Super View & BLACK TFT LCD
181 W (3 W Standby) (Method IEC60107)
18.3 kg (Display only), 22 kg (with Display
and speaker), 26.6 kg (with Display, speaker
and stand)
• As a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for
product improvement without prior notice. The performance specification figures indicated are nominal values of production
units. There may be some deviations from these values in individual units.

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OPERATION MANUAL
Part names
POWER button ( )
TV
INPUT button
VOLUME buttons ( / )
CHANNEL buttons
(P / )
*OPC: Optical Picture Control
POWER indicator
OPC sensor
Remote control sensor
SLEEP timer indicator
OPC indicator
Headphone jack
Remote control sensor indicator
RESET*
INPUT 3 terminals
SYSTEM RESET**
TV
Antenna input terminal
*Press RESET if the TV cannot return to its original state after performing various operations.
• AV MODE resets to USER. • Analogue TV channel resets to channel 1. • Dual picture resets to normal. • Audio setting initializes. • Dolby Virtual resets to Off. • Image position initializes.
**Press SYSTEM RESET if the TV does not operate after starting up.
NOTE
• Pressing RESET will not work if the TV is in standby mode (indicator lights red). • Pressing RESET will not delete channel preset and PIN. See page for resetting the PIN when you know it. See page for
initializing to the factory preset values when you forget your PIN.
DC OUTPUT terminal (Terminal for expanded functionality in the near future.)
SPEAKER terminals
AC INPUT terminal
RS-232C terminal
INPUT 2 terminal
INPUT 1 terminal
INPUT 5 terminal
CENTER CHANNEL INPUT terminal
INPUT 4/AUDIO OUTPUT terminals (switchable)

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12
8
10 11
9
3 4 5
13
20 16
17 18 19 21 22 23
14 12
24
25
15 27
28
26
6 7
NOTE
• When using the remote control unit, point it at the Display.
Remote control unit
1 (STANDBY/ON)
To switch the power on and off.
2 OPC
To switch the Optical Picture Control on and off.
3 (DUAL screen)
Set the dual picture mode. Press again to return to normal
view.
SELECT To select either screen to be active in Dual screen mode.
4 (FREEZE/HOLD)
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.
5 (WIDE MODE)
TV/External input mode: Change the wide image mode. TELETEXT mode: Set the area of magnification. (full/upper half/
lower half)
6ROTATE
Rotates the display in every direction.
7Virtual
Select Virtual Dolby Surround settings.
8 0 – 9
TV/External input mode: Set the channel. TELETEXT mode: Set the page.
9 (Flashback)
Press to return to the previous image in normal viewing mode.
(See page 15.)
10 (SUBTITLE forTELETEXT)
TV/External input mode: To turn the subtitles on and off.
11 (Reveal hidden forTELETEXT)
TELETEXT mode: Display hidden characters.
12 SOUND
Select the sound multiplex mode.
13 /(VOLUME)
Set the volume.
14 (MUTE)
Mute the sound.
15 EXIT
Turn off the On Screen Display.
16 SLEEP
Set the Sleep timer.
17 (DISPLAY INFORMATION)
Display the programme information.
18 AV MODE
Select a video setting: AV MODE (STANDARD, MOVIE, GAME,
USER, DYNAMIC), PC MODE (STANDARD, USER)
19 3D–Y/C
To switch the 3D-Y/C function on and off.
20 (Digit for channel select)
Change the digits of the selected TV channel.
21 (TELETEXT)
Select the TELETEXT mode. (all TV image, all TEXT image, TV/
TEXT image)
22 (TOP Overview forTELETEXT)
TELETEXT mode: Display an index page for CEEFAX/FLOF
information. TOP Overview for TOP programme.
23 P /P
TV/External input mode: Select the channel or switch to either
TV input mode.
TELETEXT mode: Set the page.
24 (INPUT SOURCE)
Select an input source. (TV, INPUT 1, INPUT 2, INPUT 3, INPUT
4, INPUT 5)
25 MENU
Display the menu screen.
26 /// (Cursor)
Select a desired item on the setting screen. OK Execute a command.
27 RETURN
MENU mode: Return to the previous menu screen.
28 Colour (RED/GREEN/YELLOW/BLUE)
TELETEXT mode: Select a page.
Using external equipment
CAUTION
• To protect all equipment, always turn off the TV before
connecting to a decoder, VCR, DVD player, PC, game console, camcorder or other external equipment.
NOTE
• See pages for external equipment connection. • Please refer to the relevant operation manual (DVD player,
PC, etc.) carefully before making connections.
• Each time is pressed, the input source toggles. • If the image does not come in clearly, you may need to
change the input signal type setting on the “Input Select” menu.
• Refer to your external equipment operation manual for
the signal type.
Displaying an external equipment image
Explanation here is for the setting when connecting DVD to INPUT3 terminal.
Displaying a DVD image (Example)
To watch a DVD image, select “INPUT3” from “INPUT SOURCE” menu using on the remote control unit or INPUT on the Display.
Select the desired signal type on “Input Select” in the “Option” menu.
The setting is stored and can be selected on the “INPUT SOURCE” menu.
INPUT SOURCE
TV INPUT1
INPUT2 INPUT3 INPUT5
INPUT4
1
MENU
[Option ... Input Select]
COMPONENT
Y/C
CVBS
RGB
2
You can connect many types of external equipment to your TV, like a decoder, VCR, DVD player, 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.
For INPUT3 signal

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Using external equipment
Decoder
Connecting a decoder
You can use the INPUT 1 terminal when connecting a decoder and other audiovisual equipment.
NOTE
• In cases when the decoder needs to receive signal from the TV, make sure to set “Decoder” to “INPUT1” in the Programme
Setup “Manual Adjust” menu.
VCR
SCART cable (commercially available)
Decoder
Connecting aVCR
You can use the INPUT 2 terminal when connecting a VCR and other audiovisual equipment.
NOTE
• TV-VCR advanced “AV Link” systems may not be compatible with some external sources. •
To watch an image from this input terminal, you may select the input source and the input signal type.
To watch an image from this input terminal, you may select the input source and the input signal type.
SCART cable (commercially available)
If your VCR supports TV-VCR advanced “AV Link” systems, you can connect the VCR to the INPUT 2 terminal of the TV using the fully-wired SCART cable.
It is recommended to connect to the INPUT 2 terminal when using a decoder for ground wave signal input with a VCR. If INPUT 2 signals preset in auto installation or programme setup, make sure to set “Decoder” to “INPUT2” in the Programme Setup “Manual Adjust” menu.
Using external equipment
SCART cable (commercially available)
VCR
Using AV Link function
This TV incorporates four typical AV Link functions for smooth connections between the TV and other audiovisual equipment.
NOTE
• Only works when the audiovisual equipment is connected to the INPUT 2 terminal on the TV with AV Link via a fully wired
SCART.
OneTouch Play While the TV is in standby mode, it automatically turns on and plays back the image from the audiovisual source (e.g. VCR, DVD).
TV Standby When the connected audiovisual equipment (e.g. VCR, DVD) enters standby mode, so does the TV. WYSIWYR (WhatYou See Is WhatYou Record) When the remote control unit of the connected VCR has the WYSIWYR button, you can automatically start recording by pressing the WYSIWYR button.
Preset Download Automatically transfers the channel preset information from the tuner on the TV to the one on the connected audiovisual equipment (e.g. VCR) via the INPUT 2 terminal.
NOTE
• Refer to operation manuals of each external equipment
for the details.

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Using external equipment
DVD player
Component cable (commercially available)
When using component cable, select “COMPONENT” for “Input Select” in the menu.
Connecting a DVD player
You can use the INPUT 3 terminal when connecting to a DVD player and other audiovisual equipment.
Game console/Camcorder
Composite video cable (commercially available)
S-video cable (commercially available)
Connecting a game console or camcorder
A game console, camcorder and some other audiovisual equipment are conveniently connected using the INPUT 4 terminals.
NOTE
• The S-video terminal has priority over the video terminals. • You can also connect the game console to INPUT 1 or 3 terminals to enjoy clearer picture. • When using INPUT 4 terminals, select “INPUT 4”, then “AV Input” in the “Option” menu.
Connect a
commercially available
SCART cable for audio
output.
or
To watch an image from this input terminal, you may select the input source and the input signal type.
To watch an image from this input terminal, you may select the input source and the input signal type.
Using external equipment
NOTE
• Macintosh adaptor may be required for use for some Macintosh computers. •
Connecting a PC
Use the INPUT5 terminals to connect a PC.
NOTE
• The PC input terminals are DDC1/2B-compatible. • Refer to page for a list of PC signals compatible with the TV.
ø 3.5 mm stereo minijack cable (commercially available)
PC
ø 3.5 mm stereo minijack cable (commercially available)
RGB/DVI conversion cable (commercially available)
DVI cable (commercially available)
PC
To watch the image from this input terminal, you may select input source and input signal type.
When connecting to a PC, the correct input signal type is automatically detected. If the PC image does not come in clearly, you may need to set the Auto Sync. adjustment in the “Setup” menu.

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Rear view
Using external equipment
Connecting external speakers
Make sure to connect the speaker terminal and cable polarity ( , ) properly. • The speaker terminals 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 terminals 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 terminals with the correct cables.
Incorrect connection may cause a short.
How to connect the
speaker cable
Pull up the lid. Insert the edge of the cable.
1 2 3
Put the lid back down.
Make sure to disconnect the connected speaker cables in advance when connecting external speakers.
External Audio Bypass
External Audio Bypass automatically optimises the audio quality to suit internal (supplied) speaker.
Press MENU and the MENU screen displays. Press \/|to select “Setup”.
1 2
Press \/|to select “Yes” or “No”, and then
press OK.
5
Press '/"to select “Speaker Setup”, and
then press OK.
3
Press '/"to select “External Audio
Bypass”, and then press OK.
4
NOTE
• External Audio Bypass is greyed out when Dolby Virtual
is set to “On”.
• When Dolby Virtual is on, External Audio Bypass
automatically sets to “Yes”.
Description
Sets the optimum audio for the internal (supplied) speaker. When you are using your own speakers, output the original sound.
Selected item No Yes
Appendix
• No power. • Unit cannot be operated. • Remote control unit does not
operate.
• Picture is cut off. • Strange colour, light colour, or
dark, or colour misalignment.
• Power is suddenly turned off. • No picture. • No sound.
Problem Possible Solution
• Check if you pressed on the remote control unit.
If the indicator on the Display lights up red, press .
• Is the AC cord disconnected? • Has the power been turned on? • External influences such as lightning, static electricity, etc., may cause improper
operation. In this case, operate the unit after first turning the power off, or unplugging the AC cord and re-plugging it in after 1 or 2 minutes.
• Are batteries inserted with polarity ( ,) aligned?
• Are batteries worn out? (Replace with new batteries.) • Are you using it under strong or fluorescent lighting? • Is a fluorescent light illuminated to remote control sensor? • Is the image position correct? • Are screen mode adjustments such as picture size made correctly? • Adjust the picture tone. • Is the room too bright? The picture may look dark in a room that is too bright. • Check the colour system setting. • Check the input signal setting. • The unit’s internal temperature has increased.
Remove any objects blocking vent or clean.
• Check the power control setting. • Is sleep timer set? • Is connection to other components correct? • Has input signal setup been done correctly after connection? • Is the correct input selected? • Is a non-compatible signal being input? • Is picture adjustment correct? • Is the antenna connected properly? • Is “On” selected in “Audio Only”? • Is the volume too low? • Is “Audio Out (Variable)” selected in “INPUT 4”? • Is the speaker connected properly? • Is “On” selected in “Centre Channel Input”? • Make sure that headphones are not connected.
Troubleshooting
Cautions regarding use in high and low temperature environments • When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear
slightly delayed. This is not a malfunction, and the unit will recover when the temperature returns to normal.
• Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight
or near a heater, as this may cause the cabinet to deform and the LCD panel to malfunction. Storage temperature: –20°C to +60°C (–4°F to +140°F).

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Appendix
PC compatibility chart
Apple and Macintosh are registered trademarks of Apple Computer, Inc. DDC is a registered trademark of 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 48.4 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 60 Hz 67 Hz 75 Hz 75 Hz
O O O O O O O O O O O O O O O O
1366 x 768
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/video) 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
Appendix
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”.)
When “?” is input for some commands, the present setting value responds.
C1 C2 C3 C4 P1 P2 P3 P4
0055 100 —30 0009 0
???? ?

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Commands
P
I I I
D C C
I I I I I I I I I I I I I I I
A A A A A A
V
POWER OFF (STANDBY) INPUT SWITCHING (TOGGLE) TV (CHANNEL FIXED) INPUT1 – 5 (1 – 5) TV DIRECT CHANNEL (1 – 99) CHANNEL UP CHANNEL DOWN INPUT1 (CVBS) INPUT1 (RGB) INPUT2 (CVBS) INPUT2 (Y/C) INPUT3 (CVBS) INPUT3 (Y/C) INPUT3 (RGB) INPUT3 (COMPONENT) INPUT4 (AUTO) INPUT4 (S-VIDEO) INPUT4 (VIDEO) DIGITAL PC ANALOGUE PC DIGITAL AV ANALOGUE AV TOGGLE STANDARD MOVIE GAME USER DYNAMIC VOLUME (0 – 60)
POWER SETTING INPUT SELECTION A CHANNEL INPUT SELECTION B AV MODE SELECTION VOLUME
O
T T
A
C H H N N N N N N N N N N N N N N N
V V V V V V
O
W
G
V V
C U D
P P P P P P P P P P P P P P P
M M M M M M
L
R
D D D H
P
W
1 1 2 2 3 3 3 3 4 4 4 5 5 5 5
D D D D D D
M
0
_ _
* *
_ _
0 1 0 1 0 1 2 3 0 1 2 0 1 2 3 0 1 2 3 4 5
*
_ _ _ _
*
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
*
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
CONTROL ITEM COMMAND PARAMETER CONTROL
CONTENTS
H H
V V
C
P
W W W W W W W W W W W
M M M
A A A
T T
A
O O O O O O
T T
D
H-POSITION (AV) ( 10 – 10)
H-POSITION (PC) (0 – 180) V-POSITION (AV) ( 20 – 20)
V-POSITION (PC) (0 – 100) CLOCK (0 – 180) PHASE (0 – 40) TOGGLE (AV) NORMAL (AV) ZOOM 14:9 (AV) PANORAMA (AV) FULL (AV) CINEMA 16:9 (AV) CINEMA 14:9 (AV) NORMAL (PC) CINEMA (PC) FULL (PC) DOT BY DOT (PC) TOGGLE MUTE MUTE OFF TOGGLE ON OFF DUAL SCREEN OFF DUAL SCREEN ON TOGGLE OFF SLEEP TIMER 30 MIN SLEEP TIMER 1 HOUR SLEEP TIMER 1 HOUR 30 MIN SLEEP TIMER 2 HOUR SLEEP TIMER 2 HOUR 30 MIN TEXT OFF TEXT ON (TOGGLE) DIRECT PAGE JUMP (100 – 899)
WIDE MODE POSITION DOLBY VIRTUAL MUTE DUAL SCREEN AUDIO CHANGE SLEEP TIMER TEXT
P P P P
L
H
I I I I I I I I I I I
U U U C C C
W W
C
F F F F F F
E E
C
O O O O
C
S
D D D D D D D D D D D
T T T
D D D
I I
H
T T T T T T
X X P
S S S S
K
E E E E E E E E E E E E E E E V V V
N N
A
M M M M M M
T T
G
* * * * * *
0 1 2 3 4 5 6 7 8 9 1 0 1 2 0 1 2 0 1
_
0 1 2 3 4 5 0 1
*
* * * * * *
_ _ _ _ _ _ _ _ _ _
0
_ _ _ _ _ _ _ _
_
_ _ _ _ _ _ _ _
*
* * * * * *
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_
_ _ _ _ _ _ _ _
*
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
CONTROL ITEM COMMAND PARAMETER CONTROL
CONTENTS
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.
Return code (0DH)
Response code format
Normal response Problem response (communication error or incorrect command)
Return code (0DH)
OK
ERR
Basic adjustment settings
TV/AV input mode menu items
List of AV menu items to help you with operations
OPC Backlight Contrast Brightness Colour Tint Sharpness Advanced
C.M.S. ColourTemp. Black 3D-Y/C Monochrome Film Mode I/P Setting
Picture
No Signal Off No Operation Off Auto Installation Programme Setup Child Lock Input Label Speaker Setup Position WSS 4:3 Mode Rotate Language
Treble Bass Balance Dolby Virtual Audio Only DNR Input Select INPUT 4 Quick Shoot Colour System Centre Channel Input
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 Advanced
C.M.S.
Picture
Power Management Speaker Setup Input Signal Auto Sync. Fine Sync. Input Label Rotate Language
Audio
Power Control
Setup
Treble Bass Balance Dolby Virtual
Option
Audio Only Input Select INPUT 4 Quick Shoot Centre Channel Input
*When INPUT5 is set to PC

12
LC-32GA3E
LC-37GA3E
DIMENSIONS
Unit : mm
100
677
102
700.4
395.1
795
638
480
577
307
116
400
200
61.5
200
400
(LC-32GA3E)

13
LC-32GA3E
LC-37GA3E
Unit : mm
(LC-37GA3E)
917
706
548
645
434
434
822.6
463.8
200
200
95.9
100
677
102
307
116

14
LC-32GA3E
LC-37GA3E
REMOVING OF MAJOR PARTS
1
1
1
Terminal
Cover (L)
Terminal
Cover (R)
Terminal
Cover
(Center)
2
Stand
3
34
4
SP wire (L)
SP wire (R)
Speaker Box
Bracket Cover
Bracket Cover
SP Bracket
SP Bracket
Front Cabinet
Rear Cabinet
5
5
5
5
1. Remove the Terminal Covers 1.
2. Remove the 4 lock screws 2and detach the Stand.
3. Remove the 4 lock screws 3and detach the Bracket Covers.
4. Remove the 4 lock screws 4and separate the Speaker Box from the set.
Disconnect SP wire (R) and SP wire (L).
5. Remove the 26 lock screws 5from Rear Cabinet, and detach the Rear Cabinet.
6. Remove the 7 lock screws 6from Center Angle, and detach the Center Angle.
7. Remove the Key PWB
7-1. Remove the 2 lock screws 7from Top Control Cover.
7-2. Remove the 3 lock screws 8from the Key PWB.
8. Remove the 2 lock screws 9 from AV Terminal Cover (Bottom) and detach the AV Terminal Cover (Bottom).
9. Disconnect all the connectors from all the PWBs.
P151
P2002
P7706
6
7
9
Center Angle
Top Control Cover
8
Key
PWB
AV Terminal Cover (Bottom)
P1501
P1804
P1803
P1902
SC4601
SC3200
P7200
P2006
P1900
P3802
SC7200
P7201
P3700
P1901
P3101
P8506
SC3802
P3805 P5703

15
LC-32GA3E
LC-37GA3E
10.Remove the Main and CPU PWBs.
10-1. Remove the 6 lock screws 0from Main PWB Angle, and detach the Main PWB Angle.
10-2. Remove the 10 lock screws qand detach the Main and CPU PWBs. Divide Main PWB and CPU PWB.
10-3. Remove the 2 lock screws wand detach the CPU PWB Cover.
11.Remove the DVI PWB.
11-1. Remove the 4 lock screws efrom the AV Sub Angle and detach the AV Sub Angle.
11-2. Remove the 8 lock screws rfrom the DVI PWB and detach the DVI PWB.
12.Remove 3 lock screws tfrom the Fan and detach the Fan.
13.Disconnect all the connectors from all the PWBs.
P1804
P1803
P8502
P7708
12
CPU PWB
MAIN PWB
FAN
CPU PWB Cover
Card Cover
MAIN PWB Angle
10
11
15
13
14
14
AV Sub Angle
DVI PWB
CN7652
CN7653
CN7654
CN7655
CN7601
P7704
SC4651 SC4652 CN7501
P3811
P3801
P3808
P101
P3805
P3810
P3807
P2006
CN7603
CN7604
CN7605
CN7606
P141 P1102
CN7403
CN7404
CN7405
CN7406
CN7504
CN7505
CN7506
CN7507
CN7401
CN7502
P7705
P202
P2004

16
LC-32GA3E
LC-37GA3E
14.Remove the 1 lock screw y from AV PWB and remove the 3 lock screws u from the Side Frame. Detach the
AV PWB.
15.Remove the 6 lock screws iand the 1 lock screw ofrom Side Frame. Detach the Side Frame.
16.Remove the 2 lock screws p from EXT. SP PWB, and detach the EXT. SP PWB.
17.Remove the 6 lock screws a from LCD CONT PWB, and detach the LCD CONT PWB.
18.Remove the 6 lock screws s from Power PWB, and detach the Power PWB.
19.Remove the 2 lock screws d from Front PWB, and detach the Front PWB.
20.Remove the 6 lock screws f from INVERTER-G (A) PWB and INVERTER-G (B) PWB. Detach the INVERTER-
G (A) PWB and INVERTER-G (B) PWB.
21.Remove the 8 lock screws g from INVERTER (A) PWB and INVERTER (B) PWB. Detach the INVERTER (A) PWB
and INVERTER (B) PWB.
22.Remove the 2 lock screws h from 1-Bit Amp. PWB, and detach the 1-Bit Amp. PWB.
23.Remove the 2 lock screws j from LED PWB, and detach the LED PWB.
24.Remove the 4 lock screws k from Side Angles, and detach the Side Angles.
25.Remove the 4 lock screws l from SP Angle (U).
26.Remove the 4 lock screws ;and detach the LCD Panel.
16
17
19
18 20
21
23
24 25
22
AV PWB
Side Frame
EXT. SP
PWB
POWER PWB
LCD CONT PWB
FRONT
PWB
Inverter-G (A)
PWB
Inverter-G (B)
PWB
Inverter B PWB
Inverter A PWB
LC-32GA3E LC-37GA3E
LC-32GA3ELC-37GA3E
28
27
28
30 29
29 30
30
26
1-Bit Amp. PWB
Side Angle Side Angle
LED PWB
SP Angle (U) SP Angle (U)
LCD Panel

17
LC-32GA3E
LC-37GA3E
LCD Panel Unit
Sheet Angle (top)
Sheet Angle (left)
Sheet Angle (bottom)
Sheet Angle (right)
Diffusion Panel
Diffusion Sheet
Prism Sheet
Reflection/Polarization Sheet
Lamp Holder (top)
Lamp Holder (top)
Lamp
Backlight Chassis




(CANGKA221WJ01)
31
32
32
32 32

(CANGKA222WJ01)

(CANGKA241WJ01)

(CANGKA222WJ01)

(PCOVUA027WJZZ)

(PSHEPA169WJZZ)

(PSHEPA168WJZZ)

(PSHEPA237WJZZ)

(LHLDZA310WJKZ)

(LHLDZA310WJKZ)
43

(KLMP-A040WJZ
Z)

27. Remove 5 screws for fixing the LCD Panel Unit 31 .
28. Remove 14 screws for fixing the sheet angle 32 to detach the top, bottom, left, and right sheet angles.
29. Remove the Reflection/Polarization Sheet, Prism Sheet, Diffusion Sheet, and Diffusion Panel.
30. Remove 6 screws for fixing the Lamp Holder (top) 33 to detach the Lamp Holder (top).
31. Remove the Lamps.
REMOVING OF LCD PANEL UNIT (LC-32GA3E)

18
LC-32GA3E
LC-37GA3E
REMOVING OF LCD PANEL UNIT (LC-37GA3E)
27. Remove 5 screws for fixing the LCD Panel Unit 31 .
28. Remove 14 screws for fixing the Sheet aAngle 32 to detach the top, bottom, left, and right Sheet Angles.
29. Remove the Reflection/Polarization sheet, Prism sheet, Diffusion sheet, and Diffusion Panel.
30. Remove 6 screws for fixing the Lamp Holder (top) 33 to detach the Lamp Holder (top).
31. Remove the Lamps.
LCD Panel Unit
Sheet Angle (top)
(CANGKA219WJ01)
31
32
32
32 32
Sheet Angle (left)
(CANGKA220WJ01)
Sheet Angle (bottom)
(CANGKA239WJ01)
Sheet Angle (right)
(CANGKA220WJ01)
Diffusion Panel
(PCOVUA028WJZZ)
Diffusion Sheet
(PSHEPA172WJZZ)
Prism Sheet
(PSHEPA171WJZZ)
Reflection/Polarization Sheet
(PSHEPA238WJZZ)
Lamp Holder (top)
(LHLDZA308WJKZ)
Lamp Holder (top)
(LHLDZA308WJKZ)
33
Lamp
(KLMP-A041WJZZ)
Backlight Chassis

19
LC-32GA3E
LC-37GA3E
ADJUSTMENT PROCEDURE
The adjustment values are set to the optimum conditions at the factory before shipping. If a value should
become improper or an adjustment is required due to part replacement, make an adjustment according to the
following procedure.
1. When replacing the PWB and IC, pay attention to the following precautions.
When replacing units below, order those where the software has been written.
DVI unit: DUNTKC595VJ17 for LC-32GA3E / DUNTKC595VJ19 for LC-37GA3E
CPU unit: DUNTKC427VJ21
LCD CONT unit: DUNTKC268VJ89 for LC-32GA3E / DUNTKC268VJ91 for LC-37GA3E
2.Upgrading of each microprocessor software
Caution: Never "POWER OFF" the unit when software upgrade is ongoing.
Otherwise the system may be damaged beyond recovery.
2-1 Software version upgrade
This unit has main and monitor microcomputer softwares.
These can be rewritten via a general-purpose SD memory card.
The procedures to rewrite the main and monitor microcomputer softwares are described below.
2-2 Main software version upgrade
Get ready before you start
»SD memory card of 16MB or higher capacity
»PC running on Windows 98/98SE/ME/2000/XP operating system
»SD memory card reader/writer with USB connectivity and PC card adapter
»SD memory card formatting software
(Downloadable at http://panasonic.jp/support/audio/sd/download/sd_formatter_e.html)

20
LC-32GA3E
LC-37GA3E
Preparations
To upgrade the main software, it is necessary to get ready the SD card for version upgrade before you start.
Follow the steps below and create the SD card for version upgrade.
1Insert the SD card into the SD card reader/writer. Start the SD card formatting software. Click [Format].
(When you have the drive options, select the drive where the SD card is inserted before you proceed.)
2When the formatting is over, the following window appears. Click [OK].
3Click [Exit] to finish the formatting.
Note: When you are done, take out the SD card once to make sure it is finished, and then insert it again.
4Copy the binary image file KA1UAxxx.SDC (named temporarily) for version upgrade to the root directory
(folder) of the SD card drive.
Note: In the SD card drive, do not store other folders or unrelated files, or more than one binary image files for
version upgrade.
Now the SD card for version upgrade is ready.