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SERVICE MANUAL

No.S13M1460LE631MX-WH

LCD COLOUR TELEVISION

MODEL :LC-60LE631M-WH

LC-60LE631X-WH

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.

CONTENTS

CHAPTER 1.OUTLINE AND DIFFERENCES

FROM BASE MODEL

OUTLINE/

DIFFERENCES FROM BASE MODEL ...1

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY

PRECAUTION.......................................1-2

PRECAUTION FOR USING LEED-FREE

SOLDER...............................................1-3

[2] MAJOR SERVICE PARTS

MAJOR SERVICE PARTS......................1-4

CHAPTER 2. SPECIFICATIONS

[1] SPECIFICATION.................................2-1

CHAPTER 3.OPERATION MANUAL

[1] OPERATION MANUAL........................3-1

CHAPTER 4.DIMENSIONS

[1] DIMENSIONS

............................. .. 4-1

CHAPTER 5. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS...........5-1

CHAPTER 6. TROUBLESHOOTING TABLE

[1] TROUBLESHOOTING TABLE .........................6-1

CHAPTER 7. OVERALL WIRING/BLOCK DIAGRAM

[1] OVERALL WIRING DIAGRAM ............................7-1

[2] SYSTEM BLOCK DIAGRAM............................ 7-2

CHAPTER 8. PRINTED WIRING BOARD ASSEMBLIES

[1] Main Unit ...................................................8-1

[2] T-CON Unit ..............................................8-9

[3] RC/LED Unit ......................................... ..8-13

[4] KEY Unit ...................................................8-15

CHAPTER 9. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC

DIAGRAM..................................................9-1

[2] MAIN Unit.. ...............................................9-2

[3] T-CON Unit. .............................................9-5

[4] RC/LED Unit ............................................9-15

[5] KEY Unit ...................................................9-17

Parts Guide

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.

LC-60LE631M/X-WH

CHAPTER 1.

OUTLINE AND DIFFER-

ENCES FROM BASE MODEL

[1] OUTLINE / DIFFERENCES FROM BASE

MODEL

This model is based on the LC-60LE630M/X and partially modified.

For the contents not covered in this Service Manual, accordingly, please refer to the LC-60LE630M/X Service Manual

DIFFERENCES FROM BASE MODEL

LIST OF CHANGED PARTS

Ref. No.

Description

LC-60LE630M/X

PRINTED WIRING BOARD ASSEMBLIES

MAIN Unit

DKEYMF904FMG1

MAIN Unit

DKEYMF904FMG2

R/C LED Unit

RUNTKF799FMF7

KEY Unit

DUNTKF800FMF7

POWER Unit

RUNTKA847WJN1

T-CON

DUNTKF908FM06

LCD PANEL

LCD Panel Module Unit

KEYMF904FM10 (60LE631M-WH)

KEYMF904FM12 (60LE631X-WH)

LC-60LE631M/X-WH

DKEYMF904FM10

DKEYMF904FM12

DUNTKG016FMF8

DUNTKF800FMF8

RUNTKB057WJQZ

DUNTKF908FM11

Part code changed

Note

Part code changed

Changed

R1LK600D3GW8BW

R1LK600D3GV0DF

Changed

CABINET PARTS, SUPPLIED ACCESSORIES, PACKING PARTS (NOT REPLACEMENT ITEM), SERVICE JIGS (USE FOR SERVICING)

Please refer to a Parts list.

1–1

LC-60LE631M/X-WH

SAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY

LC32LE240M

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.

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 0.74 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.

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 110-240 volt AC outlet.

Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral-

leled by a 0.15 F 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.

DVM

AC SCALE

1.5k ohm

10W

0.15

µF

TEST PROBE

•

TO EXPOSED

METAL PARTS

CONNECT TO

KNOWN EARTH

GROUND

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

SAFETY NOTICE

Many electrical and mechanical parts in LCD colour 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.

PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTION

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.

1–2

LC-60LE631M/X-WH

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:

Indicates lead-free solder of tin, silver and copper.

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

PARTS CODE

ZHNDAi123250E

ZHNDAi126500E

ZHNDAi12801KE

PRICE

RANK

PART

DELIVERY

DESCRIPTION

0.3mm 250g (1roll)

0.6mm 500g (1roll)

1.0mm 1kg (1roll)

1–3

LC-60LE631M/X-WH

[2] MAJOR SERVICE PARTS

MAJOR SERVICE PARTS

LC60LE630M

MAJOR SERVICE PARTS

PWB UNIT

Ref No.

Part No.

DKEYMF904FM10

DKEYMF904FM12

DUNTKG016FMF8

DUNTKF800FMF8

RUNTKB057WJQZ

DUNTKF908FM11

Description

MAIN Unit (LC-60LE631M-WH)

MAIN Unit (LC-60LE631X-WH)

R/C LED Unit

KEY Unit

POWER Unit

T-CON Unit

OTHER UNIT

Ref No.

Part No.

R1LK600D3GV0DF

60" LCD Panel Module Unit

Description

SERVICE JIGS

Ref No.

Part No.

QCNW-C222WJQZ

QCNW-F676WJQZ

QCNW-G405WJQZ

QCNW-N125WJPZ

CNW-

Connecting Cord,T-Con - LCD Panel

Connecting Cord, Main-T-Con (LW)

Connecting Cord, Main-T-Con (PL)

Connecting Cord, Main-Power (PD)

Description

Q’ty

1–4

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