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SERVICE MANUAL
LC-46XL2E
SERIAL
EAN CODE No
.
YMM123456
4974019564128
B
ADD.
LC-46XL2E/S/RU
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.
OUTLINE AND MODIFIED PARTS
OUTLINE.............................................................i
MODIFIED PARTS..............................................i
MODIFIED PARTS..............................................i
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRE-
CAUTION ...........................................................ii
Precautions for using lead-free solder .............. iii
CAUTION ...........................................................ii
Precautions for using lead-free solder .............. iii
Parts Guide
TopPage
CONTENTS
No. S58J8LC46XL2E
MODEL
LC-46XL2E/S/RU
LCD COLOUR TELEVISION
SUPPLEMENT
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its orig-
inal condition and only parts identical to those specified should be used.
inal condition and only parts identical to those specified should be used.
For this model, the LCD panel module has been changed.
When servicing the product, use this manual with the service manual LC-46XL2E/S/RU (S87O7LC42XL2E) already
issued.
When servicing the product, use this manual with the service manual LC-46XL2E/S/RU (S87O7LC42XL2E) already
issued.
The previous LCD panel models and the new model can be identified with the following markings.
• The
• The
B
character is added at the end of the model name on the model label.
• The
B
character is also added at the end of the model name on the number label (barcode label) of the
packing case.
• The serial product numbers are 806011112 and on.
OUTLINE
LC-46XL2E/S/RU
i
LC46XL2E
Service Manual
OUTLINE AND MODIFIED PARTS
OUTLINE
For this model, the LCD panel module has been changed.
When servicing the product, use this manual with the service manual LC-46XL2E/S/RU (S87O7LC42XL2E) already issued.
The previous LCD panel models and the new model can be identified with the following markings.
• The
character is added at the end of the model name on the model label.
• The
character is also added at the end of the model name on the number label (barcode label) of the packing case.
• The serial product numbers are 806011112and on.
MODIFIED PARTS
B
B
LC-46XL2E
SERIAL
EAN CODE No
.
YMM123456
4974019564128
B
ADD.
Ref.No.
Description
No. (Base Models)
No. (This Model)
Remarks
PRINTED WIRING BOARD ASSEMBLIES
Refre to Parts List
N
Refre to Parts List
N
MAIN Unit
DUNTKE186FM01
DUNTKE186FM01
No Change
N
TERMINAL Unit
DUNTKE187FM01
DUNTKE187FM01
No Change
N
R/C, LED Unit
DUNTKE264FM01
DUNTKE264FM01
No Change
N
KEY Unit
DUNTKE266FM01
DUNTKE266FM01
No Change
N
MIN IAV Unit
DUNTKE188FM01
DUNTKE188FM01
No Change
N
ILLUMINATION Unit
DUNTKE270FM01
DUNTKE270FM01
No Change
N
POWER Unit (Unit Replacement Item)
RDENCA231WJQZ
RDENCA231WJQZ
No Change
N
AC INLET Unit (Unit Replacement Item)
RUNTKA311WJQZ
RUNTKA311WJQZ
No Change
N
LCD CONTROL Unit
CPWBY3821TPXK
CPWBY3893TPXA
Change
N
INVERTER Unit A
RUNTKA323WJZZ
RUNTKA387WJZZ
Change
N
INVERTER Unit B
RUNTKA324WJZZ
RUNTKA388WJZZ
Change
N
INVERTER Unit C
RUNTKA325WJZZ
RUNTKA389WJZZ
Change
N
INVERTER Unit D
RUNTKA326WJZZ
RUNTKA390WJZZ
Change
LCD PANEL
N
N
46" Full HD LCD Panel Module
R1LK460D3LZ60Y
R1LK460D3LZ6DY
Change
Refer to the part list for detailed information.
CABINET PARTS
Refer to Parts List
Refer to Parts List
SUPPLIED ACCESSORIES
Refer to Parts List
Refer to Parts List
PACKING PARTS
No Change
No Change
Service Jigs
No Change
No Change
LC-46XL2E/S/RU
ii
LC46XL2E
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:
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.
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.
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 paral-
leled by a 0.15
µF 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.
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 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.
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.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
SAFETY NOTICE
Many electrical and mechanical parts in LCD color television have
special safety-related characteristics.
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.
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 “
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.
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.
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:
servicing guidelines which follow:
CAUTION:
FOR CONTINUED PROTECTION AGAINST A
RISK OF FIRE REPLACE ONLY WITH SAME
TYPE FUSE.
F7000 (6.3A/250V)
DVM
AC SCALE
1.5k ohm
10W
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
0.15
µF
TEST PROBE
LC-46XL2E/S/RU
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.
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.
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
L
F a
Indicates lead-free solder of tin, silver and copper.
L
F a/a
Indicates lead-free solder of tin, silver and copper.
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
