Sharp LC-37GP1U - 37" LCD TV User manual

SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRE-
CAUTION ............................................................i
PRECAUTIONS A PRENDRE LORS DE
LA REPARATION ...............................................ii
PRECAUTIONS FOR USING LEAD-FREE
SOLDER ........................................................... iii
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS ......................................... 1-1
CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL .................................. 2-1
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS ................................................ 3-1
CHAPTER 4. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS ................... 4-1
CHAPTER 5. ADJUSTMENT
[1] ADJUSTMENT PROCEDURE....................... 5-1
CHAPTER 6. TROUBLE SHOOTING TABLE
[1] TROUBLE SHOOTING TABLE...................... 6-1
CHAPTER 7. MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS.......................... 7-1
CHAPTER 8. OVERALL WIRING/BLOCK DIAGRAM
[1] OVERALL WIRING DIAGRAM (LC-
32GP1U)........................................................8-1
[2] OVERALL WIRING DIAGRAM (LC-
37GP1U)........................................................8-3
[3] SYSTEM BLOCK DIAGRAM.........................8-5
[4] MAIN BLOCK DIAGRAM...............................8-7
CHAPTER 9. PRINTED WIRING BOARD ASSEM-
BLIES
[1] MAIN Unit ......................................................9-1
[2] TERMINAL Unit .............................................9-9
[3] R/C, LED Unit ..............................................9-15
[4] KEY Unit ......................................................9-16
[5] GAME Unit...................................................9-17
CHAPTER 10. SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIA-
GRAM..........................................................10-1
[2] R/C, LED Unit ..............................................10-2
[3] MAIN Unit ....................................................10-3
[4] TERMINAL Unit .........................................10-49
[5] GAME Unit.................................................10-53
[6] KEY Unit ....................................................10-55
Parts Guide
SERVICE MANUAL
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
TopPage
CONTENTS
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.
LCD COLOR TELEVISION
No. SY6A5LC32GP1U
LC-32GP1U
LC-37GP1U
MODELS
LC-32GP1U/LC-37GP1U 1st

LC-32GP1U/LC-37GP1U 1st
i
LC-32GP1U/LC-37GP1U 1st Service Manual
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRECAUTION
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:
3. 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.
4. 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.
5. To be sure that no shock hazard exists, check for leakage current in
the following manner.
• Plug the AC cord directly into a 120 volt AC outlet.
• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral-
leled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or elec-
trical ground connected to an earth ground.
• Use an AC voltmeter having with 5000 ohm per volt, or higher, sen-
sitivity 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 0.75 Vrms (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.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
SAFETY NOTICE
Many electrical and mechanical parts in LCD 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 " " 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.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:
CAUTION: FOR C O N TINUE D PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE.
F701 (250V 8A)
F4702 (250V 4A)
DVM
AC SCALE
1.5k ohm
10W
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
0.15 µ F
TEST PROBE

LC-32GP1U/LC-37GP1U 1st
ii
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
De nombreuses pièces, électriques et mécaniques, dans les télévi-
seur ACL présentent des caractéristiques spéciales relatives à la sé-
curité, qui ne sont souvent pas évidentes à vue. Le degré de protec-
tion ne peut pas être nécessairement augmentée en utilisant des
pièces de remplacement étalonnées pour haute tension, puissance,
etc.
Les pièces de remplacement qui présentent ces caractéristiques sont
identifiées dans ce manuel; les pièces électriques qui présentent ces
particularités sont identifiées par la marque " " et hachurées dans la
liste des pièces de remplacement et les diagrammes schématiques.
Pour assurer la protection, ces pièces doivent être identiques à celles
utilisées dans le circuit d'origine. L'utilisation de pièces qui n'ont pas
les mêmes caractéristiques que les pièces recommandées par l'usine,
indiquées dans ce manuel, peut provoquer des électrocutions, incen-
dies, radiations X ou autres accidents.
AVERTISSEMENT
1.
2.
3.
4.
5.
•
•
•
•
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux
conseils suivants.
N'entreprendre aucune modification de tout circuit. C'est danger-
eux.
Débrancher le récepteur avant toute réparation.
Inspecter tous les faisceaux de câbles pour s'assurer que les fils
ne soient pas pincés ou qu'un outil ne soit pas placé entre le châs-
sis et les autres pièces métalliques du récepteur.
Inspecter tous les dispositifs de protection comme les boutons de
commande non-métalliques, les isolants, le dos du coffret, les cou-
vercles ou blindages de réglage et de compartiment, les réseaux
de résistancecapacité, les isolateurs mécaniques, etc.
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 à une prise de cou-
rant de 120V. (Ne pas utiliser de transformateur d'isolation pour
cet essai).
A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ
10 watts en parallèle avec un condensateur de 0.15µF en série
avec toutes les pièces métalliques exposées du coffret et une terre
connue comme une conduite électrique ou une prise de terre
branchée à la terre.
Utiliser un voltmètre CA d'une sensibilité d'au moins 5000Ω/V pour
mesurer la chute de tension 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 métalli-
que, tête des vis, arbres de commande et des boutons, écusson,
etc.) et mesurer la chute de tension CA en-travers de la résistance.
Toutes les vérifications doivent être refaites après avoir inversé la
fiche du cordon d'alimentation. (Si nécessaire, une prise
d'adpatation non polarisée peut être utilisée dans le but de termin-
er ces vérifications.)
La tension de pointe mesurèe ne doit pas dépasser 0.75V (corre-
spondante au courant CA de pointe de 0.5mA).
Dans le cas contraire, il y a une possibilité de choc électrique qui
doit être supprimée avant de rendre le récepteur au client.
PRECAUTION: POUR LA PROTECTION CON-
TINUE CONTRE LES RISQUES D'INCENDIE,
REMPLACER LE FUSIBLE
F701 (250V 8A)
F4702 (250V 4A)
VERIFICATIONS CONTRE L'INCEN-DIE ET LE
CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur, effectuer les vérifica-
tions suivantes.
DVM
ECHELLE CA
1.5k ohm
10W
0.15
µ F
SONDE D'ESSAI
AUX PIECES
METALLIQUES
EXPOSEES
BRANCHER A UNE
TERRE CONNUE
AVIS POUR LA SECURITE

LC-32GP1U/LC-37GP1U 1st
iii
PRECAUTIONS FOR USING LEAD-FREE SOLDER
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:
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 dam-
age 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.
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.
Lead-free wire solder for servicing
Indicates lead-free solder of tin, silver and copper. Indicates lead-free solder of tin, silver and copper.
PARTS CODE PRICE
RANK
PART
DELIVERY DESCRIPTION
ZHNDAi123250E BL J φ0.3mm 250g (1roll)
ZHNDAi126500E BK J φ0.6mm 500g (1roll)
ZHNDAi12801KE BM J φ1.0mm 1kg (1roll)

LC-32GP1U/LC-37GP1U 1st
1 – 1
LC-32GP1U/LC-37GP1U 1st Service Manual
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS
*1 Emergency alert messages via Cable are unreceivable.
*2 The dimensional drawings are shown on the inside back cover.
As part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product
improvement without prior notice. The performance specification figures indicated are nominal values of production units.
There may be some deviations from these values in individual units.
LCD panel
Number of dots
TV
Function
TV-standard (CCIR)
Receiving
Channel
VHF/UHF
CATV
Digital Terrestrial
Broadcast (8VSB)
Audio multiplex
Audio out
Terminals
OSD language
Power Requirement
Power Consumption
Weight
Dimension
*2
(W H D)
Operating temperature
6,220,800 dots (1920 1080 3 dots)
American TV Standard ATSC/NTSC System
VHF 2-13ch, UHF 14-69ch
1-135ch (non-scrambled channel only)
2-69ch
BTSC System
10W 2
English/French/Spanish
AC120V,60Hz
32°F to 104°F (0°C to 40°C)
Item Model: LC-32GP1U
32" Advanced Super View & BLACK TFT
LCD
TV only
TV + stand
TV only
TV + stand
165 W (0.9 W Standby with AC 120V)
44.1 lbs./20.0 kg
36.4 lbs./16.5 kg
3125/64 239/32 103/4inch
3125/64 2059/64 353/64 inch
Digital cable
*1
(64/256 QAM)
1-135ch (non-scrambled channel only)
Model: LC-37GP1U
37" Advanced Super View & BLACK TFT
LCD
203 W (0.9 W Standby with AC 120V)
52.9 lbs./24.0 kg
44.1 lbs./20.0 kg
363/16 253/4111/2inch
363/16 235/8353/64 inch
Side INPUT 1
INPUT 4
AV in, COMPONENT in (Recommend to connect game console)
HDMI in with HDCP (Recommend to connect game console)
INPUT 6 Audio in, HDMI in with HDCP
Rear INPUT 2
INPUT 3
INPUT 5
INPUT 7
DIGITAL AUDIO OUTPUT
OUTPUT
S-VIDEO in, AV in
Audio in, COMPONENT in
HDMI in with HDCP
Audio in, DVI-I in with HDCP
Optical Digital audio output 1 (PCM/Dolby Digital)
Audio out
ANTENNA 75 Unbalance, F Type 1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)
SUBWOOFER PRE OUT Monaural audio output






 



 

LC-32GP1U/LC-37GP1U 1st
2 – 1
LC-32GP1U/LC-37GP1U 1st Service Manual
CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL
Part names
TV (Front)
OPC indicator*
POWER indicator**
OPC sensor*
Remote control sensor
NOTE
*OPC: Optical Picture Control
SLEEP indicator**
TV (Rear/Side)
AUDIO terminal (INPUT 7)
AUDIO terminals (INPUT 6)
HDMI terminal (INPUT 4)
INPUT 1 terminals
POWER button
Channel buttons
(CH /)
Volume
buttons
(VOL /)
INPUT button
INPUT 3 terminals
AUDIO OUTPUT terminals
HDMI terminal (INPUT 5)
Antenna/Cable in
AC INPUT terminal
INPUT 2 terminals
DIGITAL AUDIO OUTPUT terminal
HDMI terminal (INPUT 6)
DVI-I terminal (INPUT 7)
SUBWOOFER PRE OUT

LC-32GP1U/LC-37GP1U 1st
2 – 2
3
2
115
5
6
4
9
8
18
16
17
19
20
7
21
11
10
22
12 24
25
26
13
14 28
23
27
Part names
1 TV POWER: Switch the TV power on or enters
standby.
2 DISPLAY: Display the channel information.
3 SOURCE POWER: Turns the power of the external
equipment on and off.
4 External equipment operational buttons: Operate
the external equipment.
50
_9: Set the channel.
6 (DOT):
7GAME:Selects INPUT 1 or INPUT 4.
8 INPUT: Select a TV input source. (TV, INPUT 1,
INPUT 2, INPUT 3, INPUT 4, INPUT 5, INPUT 6,
INPUT 7)
9VOL/:Set the volume.
10 SURROUND: Select Surround settings.
11 FREEZE: Set the still image. Press again to return to
normal screen.
12 EXIT: Turn off the menu screen.
13 SLEEP: Set the sleep timer.
14 AUDIO: Selects the MTS/SAP or the audio mode
during multi-channel audio broadcasts.
15 FUNCTION: Switches the remote control for TV,
CBL/SAT, VCR, DVD and AUDIO operation. Indicator
lights up for the current mode.
* To enter the code registration mode, you need to
press FUNCTION and DISPLAY at the same time.
16 LIGHT : When pressed all buttons on the remote
control unit will light. The lighting will turn off if no
operations are performed within about 5 seconds.
This button is used for performing operations in low-
light situations.
17 VIEW MODE: Select the screen size.
18 ENT: Jumps to a channel after selecting with the 0_9
buttons.
19 FLASHBACK:Return to the previous channel or
external input mode.
20 CH / : Select the channel.
21 MUTE: Mute the sound.
22 MENU: Display the menu screen.
23 ////ENTER: Select a desired item on the
screen.
24 RETURN: Return to the previous menu screen.
25 FAVORITE CH
A, B, C, D: Select 4 preset favorite channels in 4
different categories.
While watching, you can toggle the selected channels
by pressing A, B, C and D.
26 FAVORITE: Set the favorite channels.
27 CC: Display captions from a closed-caption source.
28 AV MODE: Select an audio or video setting.
(When the input source is TV, INPUT 1, 2 or 3:
STANDARD, MOVIE, GAME, USER, DYNAMIC (Fixed),
DYNAMIC. When the input source is INPUT 4, 5, 6 or
7: STANDARD, MOVIE, GAME, PC, USER, DYNAMIC
(Fixed), DYNAMIC.)
Remote control unit
NOTE
When using the remote control unit, point it at the TV.
•
•

LC-32GP1U/LC-37GP1U 1st
2 – 3
Removing the stand
Before detaching (or attaching) stand, unplug the AC cord from the AC INPUT terminal.
CAUTION
Do not remove the stand from the TV unless using an optional wall mount bracket to mount it.
Before attaching/detaching stand
Before performing work make sure to turn off the TV.
Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being
damaged.
Setting the TV on the wall
CAUTION
This TV should be mounted on the wall only with the AN-37AG2 (SHARP) wall mount bracket. The use of other wall
mount brackets may result in an unstable installation and may cause serious injuries.
Installing the 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.
Using an optional bracket to mount the TV
You can ask a qualified service professional about using an optional AN-37AG2 bracket to mount the TV to the wall.
Carefully read the instructions that come with the bracket before beginning work.
Hanging on the wall
AN-37AG2 wall mount bracket.
(See the bracket instructions for details.)
Vertical mounting
Unfasten the four screws used to secure the stand in
place.
Detach the stand from the TV. (Hold the stand so it
will not drop from the edge of the base area.)
Appendix
NOTE
To attach the stand, perform the above steps in reverse order.
Angular mounting
Hex key
NOTE
Detach the cable clamps on the rear of the TV when using the optional mount bracket.
Due to the terminal configuration on this TV, when you wall-mount this model, make sure there is enough space between the
wall and the TV for the cables.
About setting the TV angle
Angle of TV
0/5/10°
0/5/10°
Model
LC-32GP1U
LC-37GP1U
•
•
•
•
•
•
•
•
•
•
2
1

LC-32GP1U/LC-37GP1U 1st
2 – 4
Troubleshooting
Possible Solution
Is the volume too low?
Is "Variable" selected in "Output Select"?
Have you pressed MUTE on the remote control unit?
Is "On" selected in "Subwoofer"?
Cautions regarding use in high and low temperature environments
Appendix
Problem
power
Unit cannot be operated.
Remote control unit does not
operate.
Picture is cut off/with sidebar
screen.
Strange color, light color, or color
misalignment
Power is suddenly turned off.
No picture
No
No sound
Check if you pressed TV POWER on the remote control unit. If the
indicator on the TV does not light up, press POWER on the TV.
Is the AC cord disconnected?
Has the power been turned on?
External influences such as lightning, static electricity, may cause improper operation.-
In this case, operate the unit after first turning on the power of the TV or unplugging
the AC cord and replugging it in after 1 or 2 minutes.
Is the FUNCTION set correctly? Set it to the TV setting position.
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 near the 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 input signal setting.
Is the sleep timer set?
Check the power control settings.
The unit's internal temperature has increased. Remove any objects blocking vent or
clean.
Is connection to other components correct?
Is correct input signal source selected after connection?
Is the correct input selected?
Is picture adjustment correct?
Is "On" selected in "Audio Only"?
Is a non-compatible signal being input?
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 Liquid Crystal panel to malfunction.
Storage temperature: 4°F to 140°F ( 20°C to 60°C)
Troubleshooting-Digital broadcasting
The error message about reception of broadcast
Failed to receive broadcast.
E203 Check the broadcast time in the program guide.
The example of an error message
displayed on a screen
No broadcast now.
Error code
E202
Possible Solution
Check the antenna cable. Check that the antenna is correctly
setup.
••
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

LC-32GP1U/LC-37GP1U 1st
2 – 5
Preparation
Connecting a PC
When connecting to a PC with a DVI terminal. (INPUT 7)
PC
RGB/DVI Conversion cable
(commercially available)
Ø 3.5 mm stereo minijack cable
(commercially available)
NOTE
If you are connecting the TV to a PC with a DVI terminal, use a DVI cable (commercially available) instead of a RGB/DVI
conversion cable.
When connecting to a PC with an HDMI terminal. (INPUT 4, 5 or 6)
HDMI cable
(commercially available)
PC
Example
NOTE
The HDMI terminals only support digital signal.
PC compatibility chart
It is necessary to set the PC correctly to display XGA and WXGA signal.
PC
31.5 kHz
31.5 kHz
37.9 kHz
37.5 kHz
35.1 kHz
37.9 kHz
48.1 kHz
46.9 kHz
48.4 kHz
56.5 kHz
60.0 kHz
47.7 kHz
640 x 480
720 x 400
VGA
800 x 600SVGA
XGA 1024 x 768
WXGA 1360 x 768
SXGA
SXGA *
UXGA*
1280 x 1024
1400 x 1050
70 Hz
60 Hz
72 Hz
75 Hz
56 Hz
60 Hz
72 Hz
75 Hz
60 Hz
70 Hz
75 Hz
60 Hz
O
O
O
O
O
O
O
O
O
O
64.0 kHz 60 Hz
O
O
64.0 kHz 60 Hz O
1600 x 1200 75.0 kHz 60 Hz O
PC Resolution Horizontal Frequency Vertical Frequency VESA Standard
*DVI input only.
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.
•
•
+

LC-32GP1U/LC-37GP1U 1st
2 – 6
Picture
Setup
Audio
Option
Power Contr ol
Digital Setup
Picture
Setup
Audio
Power Contr ol
Basic adjustment settings
Menu items for TV/INPUT 1/2/3 Menu items for HDMI/DVI
Treble
Bass
Balance
Surround
Subwoofer
Reset
OPC
Backlight
Contrast
Brightness
Color
Tint
Sharpness
Advanced
Color Temp.
Black
3D-Y/C
Monochrome
Film Mode
Range of OPC
Reset
Treble
Bass
Balance
Surround
Subwoofer
Reset
OPC
Backlight
Contrast
Brightness
Color
Tint
Sharpness
Advanced
Color Temp.
Black
Monochrome
Film Mode
Range of OPC
Reset
No Signal Off
No Operation Off
No Signal Off
No Operation Off
EZ Setup
CH Setup
Antenna Setup-DIGITAL
Input Skip
Input Label
Parental CTRL
Position
Language
Reset
Input Skip
Input Signal
Auto Sync.
Input Label
Fine Sync.
Position
Language
Reset
NOTE
Some menu items may not be displayed depending on the
selected input source.
Option
Audio Only
Digital Noise Reduction
Input Select
HDMI Setup
Output Select
Audio Only
Digital Noise Reduction
Input Select
Output Select
Color System
Caption Setup
Program Title Display
Favorite CH
Audio Setup
•

LC-32GP1U/LC-37GP1U 1st
3 – 1
LC-32GP1U/LC-37GP1U 1st Service Manual
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS
LC-32GP1U
LC-37GP1U
Unit: Inch/(mm)
15
19
/
32
(396.1)
2
3
/
8
(60) 20
59
/
64
(531)
23
9
/
32
(591)
13
35
/
64
(344)
27
5
/
8
(701.4)
31
25
/
64
(
797)
10
3
/
4
(273)
3
15
/
32
(88)
3
53
/
64
(97)
19
31
/
32
(507)
7
7
/
8
(200)
7
7
/
8
(200) 3
23
/
64
(85)
32
25
/
64
(822.6)
36
3
/
16
(919)
3
53
/
64
(97)
4
37
/
64
(116)
11
1
/
2
(292)
21
17
/
64
(540)
18
17
/
64
(463.8)
2
9
/
64
(54) 23
5
/
8
(600)
25
3
/
4
(654)
14
47
/
64
(374)
7
7
/
8
(200)
7
7
/
8
(200) 3
23
/
64
(85)

LC-32GP1U/LC-37GP1U 1st
4 – 1
LC-32GP1U/LC-37GP1U 1st Service Manual
CHAPTER 4. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS
1. Remove the SD Card Cover.
2. Remove the 4 lock screws and detach the Stand Base Ass'y.
3. Remove the 9 lock screws, 4 lock screws and detach the Rear Cabinet.
Front Cabinet
Rear Cabinet
SD Card Cover
Stand Base Ass'y
1
2
3
3

LC-32GP1U/LC-37GP1U 1st
4 – 2
4. Remove the 2 lock screws and detach the Stand Assist Angle.
5. Remove the 4 lock screws and detach the Center Angle-L and R.
6. Remove the 1 lock screw and detach the Stand Area Cover.
7. Remove the 4 lock screws and detach the Stand Fix Angle.
8. Remove the 6 lock screws and detach the MAIN Shield.
Center Angle-R
Center Angle-L
5
5
Center Angle-R
Center Angle-L
MAIN Shield
Stand Fix Angle
LC-37GP1U
LC-37GP1U
LC-32GP1U
LC-32GP1U
Stand Area Cover
Stand Assist Angle
6
7
4
5
5
8
Stand Fix Angle
Stand Area Cover
Stand Assist Angle
6
7
4

LC-32GP1U/LC-37GP1U 1st
4 – 3
9. Disconnect all the connectors from all the PWBs.
10.Remove the Top Cover Ass'y. Remove the 2 lock screws from the Top Cover Ass'y and detach the KEY Unit.
10
10
KEY Unit
Top Cover
9
9
9
9
[PE]
[LB]
[LV]
[LA]
[LA]
[LB](32GP1U)
[GA]
[PD]
[MA] [FC] [SA]
[KM]
[KM]
[CN2](32GP1U)
[CN1]
[CN5](32GP1U)
[CN4](37GP1U)
[CN4](32GP1U)
[CN3](37GP1U)
[CN2](37GP1U)
[PH]
[F-RCA wire] [LB](37GP1U)
[LP]
[VE]
[RA]
[SP]
[VD]
[PD]
[HM]
[VD]
[TS]

LC-32GP1U/LC-37GP1U 1st
4 – 4
11.Remove the 4 lock screws and detach the Speaker-L and R.
12.Remove the 1 lock screw and detach the GAME Unit Ass’y.
13.Remove the 4 lock screws from the GAME Unit Ass’y and detach the GAME Unit.
14.Remove the 2 lock screws and detach the R/C, LED Unit.
15.Remove the 5 lock screws and detach the Tray Chassis.
LC-37GP1U
12 13
13
13
GAME Unit Shield
GAME Unit Holder
GAME Unit
14
12 13
13
13
11
15
11
GAME Unit Shield
GAME Unit Holder
Tray Chassis
Speaker-L
Speaker-R
R/C, LED Unit
GAME Unit
LC-32GP1U

LC-32GP1U/LC-37GP1U 1st
4 – 5
16.Remove the 2 lock screws, 2 lock Shaft and detach the Jack Angle.
17.Remove the 7 lock screws and detach the POWER Unit.
18.Remove the 4 lock screws and detach the TERMINAL Unit.
19.Remove the 5 lock screws, 2 lock rivets and detach the MAIN PWB Radiator and MAIN Unit.
MAIN Unit
POWER Unit
TERMINAL Unit
MAIN PWB Radiator
Jack Angle
16
17
19
19
19
18
16

LC-32GP1U/LC-37GP1U 1st
4 – 6
20.Remove the 6 lock screws and detach the Rug Angle Top-L and R. (LC-32GP1U)
Remove the 4 lock screws and detach the Rug Angle Top-L and R. (LC-37GP1U)
21.Remove the 6 lock screws and detach the Rug Angle Bottom-L and R.
22.Remove the 3 lock screws and detach the Chassis Fix Angle Top. (LC-32GP1U)
Remove the 5 lock screws and detach the Chassis Fix Angle Top. (LC-37GP1U)
23.Remove the LCD Panel Module.
20
20
21 21
21
20 22
22
21 21
21
21
21
20 20
20
Rug Angle Top-R
Rug Angle Top-R
Chassis Fix Angle Top
Chassis Fix Angle Top
Rug Angle Bottom-R
Rug Angle Bottom-R
Rug Angle Bottom-L
Rug Angle Bottom-L
Rug Angle Top-L
LC-37GP1U
LC-32GP1U
Rug Angle Top-L
22 22

LC-32GP1U/LC-37GP1U 1st
5 – 1
LC-32GP1U/LC-37GP1U 1st Service Manual
CHAPTER 5. ADJUSTMENT
[1] 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. After replacement of any PWB unit and/or IC for repair, please note the following.
When replacing the following units, make sure to prepare the new units loaded with updated software.
MAIN Unit: DUNTKE028FM05
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
The model employs the following software.
•Mainsoftware
• Monitor microprocessor software
The main software and the monitor microprocessor software can be upgraded by using a general-purpose SD memory card.
The followings are the procedures for upgrading, explained separately for each of the main software, the monitor microprocessor software.
2.2. Main software version upgrade
2.2.1 Get ready before you start
• SD memory card of 32MB or higher capacity
• PC running on Windows 98/98SE/ME/2000/XP operating system
• SD memory card reader/writer with USB connectivity
• SD memory card formatting software
(Downloadable at http://panasonic.jp/support/audio/sd/download/sd_formatter_e.html)
2.2.2 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.
1. Insert 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.)

LC-32GP1U/LC-37GP1U 1st
5 – 2
2. When the formatting is over, the following window appears. Click [OK].
3. Click [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.
4. Copy the binary image file GP1UAxxx.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.
2.2.3 Upgrading the software
1. Turn off the AC power (Unplug the AC power cord).
2. Insert the upgrading SD card (prepared as instructed above) into the service slot.
NOTE: Be careful not to insert the SD card in the wrong way. Otherwise the card may come into the set and fail to come out.
3. Turn on the AC power (Plug in the AC power cord).
4. A couple to dozen seconds after the set starts, the upgrade screen below shows up.