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.
[3] MAIN BLOCK DIAGRAM ............................... 6-3
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.
Parts Guide
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC-32XL8E/S/RU, LC-37XL8E/S/RU
LC32XL8E
SAFETY PRECAUTION
Service Manual
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:
WARNING
1. For continued safety, no modification of any circuit should be
attempted.
2. Disconnect AC power before servicing.
CAUTION:
FOR CONTINUED PROTECTION AGAINST A
RISK OF FIRE REPLACE ONLY WITH SAME
TYPE FUSE.
• Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resistor.
• Connect the resistor connection to all exposed metal parts having a
return to the chassis (antenna, metal cabinet, screw heads, knobs
and control shafts, escutcheon, etc.) and measure the AC voltage
drop across the resistor.
All checks must be repeated with the AC cord plug connection
reversed. (If necessary, a nonpolarized adaptor plug must be used
only for the purpose of completing these checks.)
Any reading of 1.05 V peak (this corresponds to 0.7 mA peak AC.)
or more is excessive and indicates a potential shock hazard which
must be corrected before returning the monitor to the owner.
F7000 (5A/250V)
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 220~240 volt AC outlet.
• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground.
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.
DVM
AC SCALE
1.5k ohm
10W
0.15µF
TEST PROBE
CONNECT TO
KNOWN EARTH
GROUND
i
LC-32XL8E/S/RU, LC-37XL8E/S/RU
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:
L Fa
Indicates lead-free solder of tin, silver and copper.
Indicates lead-free solder of tin, silver and copper.
L F a/a
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.
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.
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.
NOTE
Refer to the inside back cover for dimensional drawings.
•
Optional accessory
The listed optional accessories are available for this
LCD colour TV. Please purchase them at your nearest
shop.
Additional optional accessories may be available in the
•
near future. When purchasing, please read the newest
catalogue for compatibility and check the availability.
No.Part namePart number
1Wall mount bracketAN-37AG2
2AttachmentAN-37P30
1 – 1
[2] OPERATION MANUAL
Remote control unit
(Standby/On)
1
Buttons for useful operations
2
(Teletext)
ATV: Display analogue teletext.
DTV: Select MHEG-5 and teletext for
DTV.
(Reveal hidden Teletext)
(Subtitle)
Switch subtitle languages on/off .
(Freeze/Hold)
Press to freeze a moving image on
the screen.
Teletext: Stop updating teletext
pages automatically or release the
hold mode.
(Subpage)
(Top/Bottom/Full)
Set the area of magnification in
teletext mode.
0–9 numeric buttons
3
Set the channel.
Enter desired numbers.
Set the page in teletext mode.
When the five Nordic countries
•
(Sweden, Norway, Finland,
Denmark, or Iceland) are selected
in the country setting from “Auto
Installation”, DTV.
services are four digits. When
another country is selected, DTV
services are three digits.
(Flashback)
4
Press to return to the previously
selected channel or external input.
DTV
5
Press to access digital TV mode.
ATV
6
Press to access conventional
analogue TV mode.
7
8
9
10
11
12
(Sound mode)
Select a sound multiplex mode.
/ (Volume)
Increase/decrease TV volume.
(Mute)
TV sound on/off.
(WIDE MODE)
Select a wide mode.
AV MODE
Select a video setting.
END
Exit the “MENU” screen.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R/G/Y/B (Colour) buttons
13
The coloured buttons are
correspondingly used to select the
coloured items on the screen (e.g.
EPG, MHEG-5, Teletext).
LC-32XL8E/S/RU, LC-37XL8E/S/RU
DEMO
14
Demonstrate the 100 Hz effects in a
dual screen format.
(INPUT SOURCE)
Select an input source
EPG
DTV: Display the EPG screen.
RADIO
DTV: Switch between Radio and
Data mode.
When only data broadcasting (no
•
radio broadcasting) is transmitted
by DVB, the radio broadcasting
will be skipped.
P. INFO
Press to display programme
information which is transmitted
through digital video broadcasting in
the upper left corner of the screen
(DTV only).
P/
Select the TV channel.
(Display information)
Press to display the station
information (channel number, signal,
etc.) in the upper right corner of the
screen.
SLEEP
Press to schedule a time for the TV
to automatically standby.
MENU
“MENU” screen on/off.
/ / /(Cursor)
Select a desired item on the setting
screen.
OK
Execute a command within the
“MENU” screen.
ATV/DTV: Display the programme
list when no other “MENU” screen is
running.
(Return)
Return to the previous “MENU”
screen.
AQUOS LINK buttons
If external equipment such as a
AQUOS BD Player is connected via
HDMI cables and is AQUOS LINK
compatible, you can use these
AQUOS LINK buttons.
15
16
17
18
19
20
21
22
23
24
25
15
16
17
18
19
20
21
22
23
24
25
1 – 2
LC-32XL8E/S/RU, LC-37XL8E/S/RU
TV (Front view)
Remote control sensor
TV (Rear view)
Programme (channel) buttons
Volume buttons
1
2
3
OPC sensor
P/
/
OPC indicator
SLEEP indicator
B (Standby/On) indicator
(INPUT SOURCE) button
MENU button
(Power) button
15
7
12
8
4
5
6
EXT4 (HDMI) terminal
1-
EXT5 (HDMI) terminal
2-
EXT7 (ANALOGUE RGB/AUDIO)
3-
terminals
DIGITAL AUDIO OUTPUT terminal
4-
OUTPUT (AUDIO) terminals
5-
Antenna terminal
6-
9
13
14
10
11
EXT6 (HDMI/AUDIO) terminals
7-
RS-232C terminal
8-
EXT8 (COMPONENT/AUDIO)
9-
terminals
EXT2 (RGB) terminal
10-
EXT1 (RGB) terminal
11-
16
WARNING:
Excessive sound pressure from
earphones and headphones can cause
hearing loss.
EXT3 terminals
12-
Headphones
13-
SERVICE socket
14-
COMMON INTERFACE slot
15-
AC INPUT terminal
16-
1 – 3
LC-32XL8E/S/RU, LC-37XL8E/S/RU
Preparation
Attaching the stand unit
Before attaching (or detaching) the stand, unplug the AC cord from the AC INPUT terminal.
•
Before performing work, spread cushioning over the surface on which you will be laying the TV. This will prevent
•
it from being damaged.
CAUTION
Attach the stand in the correct direction.
•
Be sure to follow the instructions. Incorrect installation of the stand may result in the TV falling over.
•
Confirm that there are ten screws with the stand
1
unit.
2
Attach the supporting post for the stand unit
onto the base using the six screws with the
screw driver (supplied) as shown.
Inserting the stand.
3
1
Insert the stand into the openings on the
bottom of the TV (Hold the stand so it will
not drop from the edge of the base area).
Insert and tighten the four short screws into
2
the four holes on the rear of the TV.
2
Supporting
post
Soft
cushion
1
NOTE
To detach the stand unit, perform the steps in reverse
•
order.
1 – 4
LC-32XL8E/S/RU, LC-37XL8E/S/RU
Preparation
Inserting the batteries
Before using the TV for the first time, insert two supplied “AAA” size alkaline batteries. When the batteries become
depleted and the remote control unit fails to operate, replace the batteries with new “AAA” size batteries.
Open the battery cover.
1
Insert two supplied “AAA” size alkaline batteries.
2
Place batteries with their terminals corresponding to the
•
() and () indications in the battery compartment.
Close the battery cover.
3
CAUTION
Improper use of batteries can result in chemical leakage or explosion. Be sure to follow the instructions below.
Do not mix batteries of different types. Different types of batteries have different characteristics.
•
Do not mix old and new batteries. Mixing old and new batteries can shorten the life of new batteries or cause
•
chemical leakage in old batteries.
Remove batteries as soon as they have worn out. Chemicals that leak from batteries can cause a rash. If you
•
find any chemical leakage, wipe thoroughly with a cloth.
The batteries supplied with this product may have a shorter life expectancy due to storage conditions.
•
If you will not be using the remote control unit for an extended period of time, remove the batteries from it.
•
When replacing the batteries, use alkaline batteries instead of zinc-carbon ones.
•
Note on disposing batteries:
The batteries provided contain no harmful materials such as cadmium, lead or mercury.
Regulations concerning used batteries stipulate that batteries may no longer be thrown out with the household
rubbish. Deposit any used batteries free of charge into the designated collection containers set up at commercial
businesses.
Using the remote control unit
Use the remote control unit by pointing it towards the remote control sensor. Objects between the remote control
unit and sensor may prevent proper operation.
5m
30°30°
Remote control sensor
Cautions regarding the remote control unit
•
Do not expose the remote control unit to shock. In addition, do not expose the
remote control unit to liquids, and do not place in an area with high humidity.
•
Do not install or place the remote control unit under direct sunlight. The heat
may cause deformation of the unit.
•
The remote control unit may not work properly if the remote control sensor of
the TV is under direct sunlight or strong lighting. In such cases, change the
angle of the lighting or the TV, or operate the remote control unit closer to the
remote control sensor.
1 – 5
LC-32XL8E/S/RU, LC-37XL8E/S/RU
Appendix
Troubleshooting
ProblemPossible Solution
No power.•
The TV cannot be operated.•External influences such as lightning, static electricity, etc., may cause improper operation. In this
Remote control unit does not operate.•
Picture is cut off.•Is the image position correct?
Strange colour, light colour, or dark
•Adjust the picture tone.
colour, or colour misalignment.
Power is suddenly turned off.•The TV’s internal temperature has increased.
No picture.•Are connections to external equipment correct?
No sound.•
The TV sometimes makes a cracking
•This is not a malfunction. This happens when the cabinet slightly expands and contracts
sound.
•
Check if you pressed on the remote control unit.
If the indicator on the TV lights up red, press .
•
Is the AC cord disconnected?
Check if you pressedon the TV.
•
•
case, operate the TV after first turning off the power, or unplugging the AC cord and re-plugging
it in after one or two minutes.
Are batteries inserted with polarity (
•
Are batteries worn out? (Replace with new batteries.)
•
Are you using it under strong or fluorescent lighting?
•
Is a fluorescent light illuminating to the remote control sensor?
•
•
Are screen mode adjustments (WIDE MODE) such as picture size made correctly?
•
•
Is the room too bright? The picture may look dark in a room that is too bright.
•
Check the “Colour System” setting.
•
•
Remove any objects blocking the vent or clean.
Is the “Sleep Timer” set? Select “Off” from the “Sleep Timer” menu.
•
Is “No Signal Off” or “Ecology” activated?
•
•
Is the input signal type selected correctly after connection?
•
Is the correct input source selected?
•
Is a non-compatible signal being input?
•
Is the picture adjustment correct?
•
Is the antenna connected properly?
•
Is “On” selected in “Audio Only”?
•
Is the volume too low?
•
Make sure that headphones are not connected.
•
Check if you pressed e on the remote control unit.
•
•
according to changes in temperature. This does not affect the TV’s performance.
+
,-) aligned?
Cautions regarding use in high and low temperature environments
When the TV 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 TV will recover when the temperature returns to normal.
Do not leave the TV in a hot or cold location. Also, do not leave the TV 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: +5 °C to +35 °C.
1 – 6
LC-32XL8E/S/RU, LC-37XL8E/S/RU
[3] DIMENSIONS
( ) : LC-32XL8E/S/RU
[ ] : LC-37XL8E/SRU
: LC-32XL8E/S/RU
LC-37XL8E/S/RU
480.0
(572.0)/[638.0]
(517.0)/[581.0]
(55.0)
(130.0)
[156.7]
300.0
[57.0]
(776.0)/[898.0]
(701.5)/[824.4]
99.094.6
(396.0)/[464.0]
(332.0)/[369.0]
276.0
300.0
1 – 7
15°
15°
SHEET FOR BOSS
LC32XL8E
CHAPTER 2. REMOVING OF MAJOR PARTS
Service Manual
[1] REMOVING OF MAJOR PARTS (LC-32X8E/S/RU)
LC-32XL8E/S/RU, LC-37XL8E/S/RU
1. Remove the 3 lock screws , 4 lock screws , 2 lock screws and the 9 lock screws . Detach the Rear Cabinet.
1
2
3
4
4
1
REAR CABINET
2
3
2 – 1
LC-32XL8E/S/RU, LC-37XL8E/S/RU
Wire "KM"
KEY COVER
#Place Wire "KM" between SHEILED and Key PWB
Wire SP-R to SP-R lead
Wire SP-L to SP-L lead
Wire "SP" to WH
Wire "SP-L"
2. Remove all the connectors from PWBs.
Detach the KEY COVER Unit.
Wire "KM"
KEY COVER Unit
FOR Wire "SP"
for Wire "SP-L"
2 – 2
LC-32XL8E/S/RU, LC-37XL8E/S/RU
#Set PWB to guide lib surely
Pull out Wire "RA" from bottom
R/C, LED PWB Front
Wire "RA"
Wire "RA"
Next,Push PWB hooked
Wire "RA"
Wire "RA" to WH x3
3. Remove the 2 lock screws and detach the Speaker L/R.
5
SP-R
4. Remove all the connectors from PWBs.
FORWire"RA"
R/C,LED PWB Back side
Wire "SPE" to WH
5
Wire "RA"
R/C, LED PWB
(with wire)
SP-L
R/C, LED PWB
5. Remove the R/C, LED Unit.
2 – 3
LC-32XL8E/S/RU, LC-37XL8E/S/RU
#Unshape Wire "SPE" TEMPORARY shaping
when insutalling CAB-A, and Shape to WH on OBON
Wire "SPE" TEMPORARY shaping
Don't sandwich Wire "SPE"
6. Remove the 2 lock screws , 6 lock screws and the 6 lock hooks . Detach the LCD Panel Module.
678
6
7
FUSION SUB ASSY
8
Prepared CAB-A
2 – 4
LC-32XL8E/S/RU, LC-37XL8E/S/RU
#Caution
Don't make mistake Screw Hole
7. Remove the 1 lock screw and detach the Bottom Cover.
9
9
BOTTOM COVER
2 – 5
LC-32XL8E/S/RU, LC-37XL8E/S/RU
#Caution
Don't protrude Wire "US" ,"VD" to this area
#For Prevention sandw itch Wire with CAB-B,
Push Wire "VD" under MINI-AV
8. Remove the 2 lock screws and detach the MINI AV Unit.
10
Detach the Conductive Tape.
Remove all the connectors from PWBs.
Wire "US" to WH
Conductive Tape
10
MINI AV UNIT
with GASKET
Wire "US"
MINI AV UNIT
Wire "VD"
2 – 6
9. Remove all the connectors from PWBs.
Wire "LB"
Wire "FR"
LC-32XL8E/S/RU, LC-37XL8E/S/RU
Wire "LB/FR" to W H
Wire "LB" to WH
Wire "LA"
Wire "LW"
2 – 7
LC-32XL8E/S/RU, LC-37XL8E/S/RU
STND ANG SUB ASSY
LCD CTRL With WH
10.Remove the 14 lock screws and detach the Chassis Tray.
11
11
CHASSIS TRAY
11.Remove the 5 lock screws and detach the LCD Control Cover.
Remove the 5 lock screws and detach the Stand Angle Sub Ass’y.
12
13
32 LCD PANEL
13
12
1212
2 – 8
LC-32XL8E/S/RU, LC-37XL8E/S/RU
Back Side
Back Side
12.Remove the 4 lock screws and detach the Stand Support Angle.
STAND ANG
13.Remove the 4 lock screws , 8 lock screws and the 1 lock screw . Detach the Main Shield.
14
STND SPPRT ANG
15
16
17
16
14
17
16
MAIN SHIELD
15
2 – 9
LC-32XL8E/S/RU, LC-37XL8E/S/RU
B to B connection
Pull same time
Wire "VD"
Wire "US"
Wire "KM"
Wire
Wire "FR"
Wire "LB"
Wire
Wire "LA"
Wire
Wire "LB" to WH
Wire "RA","SP" to WH
Wire "RA" to WH
Wire "RA" to WH
Wire "VD"
Wire "US"
Wire "KM"
Wire
Wire "FR"
Wire "LB"
Wire
Wire "LA"
Wire
Wire "SP"
Wire "LB"
14.Remove all the connectors from PWBs.
Wire "FR","LW" to WH
Wire "RA"
Wire "US"
Wire "VD"
Wire "LW"
Wire "KM"
Wire "FR"
Wire "LA"
2 – 10
[2] REMOVING OF MAJOR PARTS (LC-37XL8E/S/RU)
SHEET FOR BOSS
LC-32XL8E/S/RU, LC-37XL8E/S/RU
1. Remove the 2 lock screws , 4 lock screws , 3 lock screws , 6 lock screws and the 4 lock screws . Detach the Rear Cabinet.
1
2
3
45
5
3
REAR CABINET
4
2
1
2 – 11
LC-32XL8E/S/RU, LC-37XL8E/S/RU
#Place Wire "KM" between SHEILED and Key PWB
Wire "SP-L"
Wire "SP-L"
Wire "SP-R"
Wire "SP-L"
Wire "SP-R"
2. Detach the KEY COVER Unit.
Remove all the connectors from PWBs.
KEY COVER Unit
Wire "KM"
2 – 12
LC-32XL8E/S/RU, LC-37XL8E/S/RU
Wire "RA"
from OBON
R/C, LED PWB Front side
R/C, LED PWB Back side
Pull out Wire "RA" from bottom
1st,Set R/C, LED PWB Under LIB
Next,Push PWB hooked
#Set PWB to gide lib surely
Wire "RA"
Wire "RA" to WH
3. Remove the 2 lock screws and detach the Speaker L/R.
6
Speaker R
4. Remove all the connectors from PWBs.
R/C, LED PWB
(with wire)
R/C, LED PWB
Speaker L
6
5. Remove the R/C, LED Unit.
2 – 13
LC-32XL8E/S/RU, LC-37XL8E/S/RU
6. Remove the 9 lock screws , 2 lock screws and the 6 lock hooks . Detach the LCD Panel Module.
78
9
7
8
FRONT CABINET
9
2 – 14
LC-32XL8E/S/RU, LC-37XL8E/S/RU
Please do not make a mistake in a place to fix with a screw.
7. Remove the 1 lock screw and detach the Bottom Cover.
10
BOTTOM COVER
10
2 – 15
LC-32XL8E/S/RU, LC-37XL8E/S/RU
Wire "SP"
Wire "SP-R" to WH
for Wire "SP"
Wire "LB"
Wire "LA"
8. Remove all the connectors from PWBs.
Wire "SP-L" to WH
Wire"LA","LB"toWH
Wire "LA"
Wire "LB"
2 – 16
Wire "LB"/"FR" to WH
Wire "LB" to WH x2
Wire "FR"
Wire "LA"
LC-32XL8E/S/RU, LC-37XL8E/S/RU
Wire "LB"/"LA" to WH
Wire "LW"
Wire "LB"
2 – 17
LC-32XL8E/S/RU, LC-37XL8E/S/RU
Wire "US"
Wire "VD"
Open side
Wire "RA"
for Wire "RA"
Wire "VD"
Wire "US"
9. Remove the 2 lock screws and detach the MINI AV Unit.
11
11
WS MINI AV COV
WH
11
2 – 18
LC-32XL8E/S/RU, LC-37XL8E/S/RU
10.Remove the 5 lock screws and detach the LCD Control Cover.
Detach the 2 Conductive Tapes.
Remove the 14 lock screws and detach the Chassis Tray.
CHASSIS
TRAY
12
13
13
CONDUCTIVE TAPE
12
CONDUCTIVE
TAPE
12
LCD CNTROL COVER
12
2 – 19
LC-32XL8E/S/RU, LC-37XL8E/S/RU
STAND ANGLE SUB ASSY
Back side
11.Remove the 5 lock screws and detach the Stand Angle Sub Ass’y.
37 LCD PANEL
14
12.Remove the 4 lock screws and detach the Stand Support Angle.
15
STAND SPPRT ANG
15
STAND ANG
14
15
2 – 20
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