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.
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-60LE855E/K,60/70LE857E/RU,858E,70LE857K
LC60LE855E
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.
F7001(5A/250V)
• 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.
DVM
BEFORE RETURNING THE RECEIVER
AC SCALE
(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.
i
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
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.
NDKEYDG216FM51MAIN Unit (LC-60LE855E/K)
NDKEYDG216FM52MAIN Unit (LC-60/70LE857E/RU,70LE857K)
NDKEYDG216FM53MAIN Unit (LC-60/70LE858E)
NDUNTLG215FM51LCD CONTROL Unit (LC-60LE855E/K,857E/RU,858E)
NDUNTLG215FM52LCD CONTROL Unit (LC-70LE857E/K/RU,858E)
NDUNTLG014FM51ICON Unit
NDUNTLG015FM52R/C OPC Unit
NDUNTLF800FM53KEY Unit
NRUNTKB126WJQZBLUETOOTH Unit
NRUNTKB117WJQZPOWER Unit (LC-60LE855E/K,857E/RU,858E)
NRUNTKB119WJQZPOWER Unit (LC-70LE857E/K/RU,858E)
NOTE: (*1) Replace MAIN Unit (DKEYDG216FM**) in case of IC3301 or IC3103 failure.
PARTS CODEDESCRIPTION
OTHER Unit
Ref
No.
NCLCDTA293WE0160" LCD Panel Module Unit (LC-60LE855E/K,857E/RU,858E)
NDRDARB087WE01B/L LED Assembly (LC-60LE855E/K,857E/RU,858E)
NR1JE600D3HD60Y60" LCD Panel Unit (JE600D3HD60Y) (LC-60LE855E/K,857E/RU,858E)
NCLCDTA294WE0170" LCD Panel Module Unit (LC-70LE857E/K/RU,858E)
NDRDARB089WE01B/L LED Assembly (LC-70LE857E/K/RU,858E)
NR1JE695D3HB10Y70" LCD Panel Unit (JE695D3HB10Y) (LC-70LE857E/K/RU,858E)
NDWAKMA031WE01Aluminum Frame assembly (LC-60LE855E/K,857E/RU,858E)
NDWAKMA035WE01Aluminum Frame assembly (LC-70LE857E/K/RU,858E)
NQCNW-M539WJQZConnecting Cord Main to POWER Unit and LCD Control Unit (PD)
NQCNW-K597WJQZConnecting Cord Main to Woofer (SB)
NQCNW-K595WJQZConnecting Cord Main to Speaker Unit L/R (SP)
NQCNW-F676WJQZConnecting Cord Main to LCD Control Unit (LW)
NQCNW-C222WJQZConnecting Cord 80pins, LCD Control Unit to LCD Panel Unit, x2
NQCNW-L214WJQZConnecting Cord 64pins, LCD Control Unit to LCD Panel Unit, x2
iv
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
LC60LE855E
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS
Service Manual
1 – 1
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
1 – 2
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
LC60LE855E
CHAPTER 2. OPERATION MANUAL
[1] Parts Name
Service Manual
2 – 1
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
2 – 2
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
2 – 3
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
2 – 4
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
[2] OPERATION MANUAL
2 – 5
LC60LE855E
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
Service Manual
3 – 1
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
LC60LE855E
CHAPTER 4. REMOVING OF MAJOR PARTS
Service Manual
[1] REMOVING OF MAJOR PARTS (LC-60LE855E/K,857E/RU,858E)
1. Removing of Stand Unit and Rear Cabinet Ass'y
1. Remove the 1 lock screw and detach the Stand Support Ass’y.
2. Remove the 4 lock screws (3) and detach the Stand Unit (4).
3. Remove the 1 lock screw (5) and detach the AC Cord Cover (6).
4. Disconnect AC wire and detach the AC Cord (7).
5. Remove the 24 lock screws (8), 5 lock screws (9), 2Hooks and detach the Rear Cabinet Ass'y (10).
Ԝ
ԝAC Cord Cover
Ԟ
AC Cord
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ԠԠ
Lock the hook
ԙStand Support Ass'y
ԟ
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4 – 1
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
2. Removing of Speaker (L/R), KEY Unit and Bottom Cover.
1. Remove the 4 Hooks and detach the Bottom Cover(1).
2. Detach the Speaker(L) (2), Speaker(R) (3).
3. Disconnect the SP wire.
4. Disconnect the RC wire.
5. Detach the KEY Unit Ass'y(4).
6. Remove the 2 Hooks and detach the Key Button (5) from Key Button Cover (7).
7. Disconnect the KM wire.
8. Detach the KEY Unit (6) from Key Button(5).
SP
Ԛ
Speaker (R)
HookHook
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Bottom Cover
RC
SP
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Speaker (L)
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ԝ-';7PKV
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4 – 2
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
3. Removing of Connectors
1. Disconnect the following connectors from the MAIN Unit. (PD, SB, LV)
2. Disconnect the following connectors from the POWER Unit. (L1, PD, AS)
3. Disconnect the following connectors from the LCD CONTROL Unit. (PL, LW)
4. Remove the 6 lock screws (1) and detach the Rear Cover (13) and remove 2 lock screws (2), 10 lock screws (3) and detach the Front Cover Ass'y
(9).
5. Detach the BLUETOOTH Unit (4).
6. Disconnect the BT wire.
7. Detach the ICON Unit (5).
8. Disconnect the CI wire.
9. Detach the R/C OPC Unit (6).
10.Disconnect the RA wire.
11.Remove the 2 lock screws (12) and detach the ECO-SW (13).
12.Remove the 8 lock screws (10), 5 lock screws (11) and detach the B/L Support Angle Bottom Ass'y (12)
13.Detach the Speaker Unit (Woofer) (14).
ԥ5RGCMGT7PKV9QQHGT
L1
PDSB
Ԥ'%159
PD
LW
LV
33
ԠFront Cover Ass'y
1
1
2
PL
AS
12
2
12
AS
3 333333
11
3
1
1
ԤRear Cover
٨Front Cover Ass'y
ԛBLUETOOTH Unit
BT
ԜICON Unit
ԝR/C OPC Unit
CI
RA
10
10
10101010
10
10
11
ԣ$.5WRRQTV#PING$QVVQO#UU[
11
11
11
11
4 – 3
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
4. Removing of 60"LCD Panel Module Unit, LCD CONTROL Unit, MAIN Unit, POWER Unit.
1. Remove the 17 lock screws (1) and detach the 60" LCD Panel Module Unit(2).
2. Remove the 4 Ferrite Cores (3), 2 connecting cords(FFC80P) (4), 2 connecting cords(FFC64P) (5), 6 lock screws (6) and detach the LCD CONTROL Unit (7).
3. Remove the 5 lock screws (8), 1 USB memory (8-2) and detach the Main Shield (9) remove 2 lock screws (17), 1 lock Hexagon (19) (LC60LE857E/RU only) and detach the MAIN Unit (11), Terminal Angle Bottom (10) and Earth Spring (18).
4. Remove the 6 lock screws (12) and detach the POWER Unit (13).
5. Remove the 4 lock screws (14) and detach the VESA Angle Ass'y (15).
6. Remove the 8 lock screws (16) and detach the Stand Angle (17).
1
14
12
1
Ԧ8'5##PING#UU[
MAIN UnitԢ
14
8
8-2
1
1
ԞLCD CONTROL Unit
ԠMain Shield
1
Ԧ8'5##PING
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1
ԤPOWER Unit
5VCPF#PINGԨ
14
16
ԚFerrite Core
ԛFFC80P
ԜFFC64P
14
ԡTerminal Angle
Bottom
Ԧ8'5##PING
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16
Ԩ5VCPF#PING
ԙ60" LCD Panel
˴Module Unit
1
1
17
17
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NOTE: Remove the USB memory from the MAIN Unit, when you replace the MAIN Unit, please attach the USB memory to the new MAIN Unit.
4 – 4
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
[2] REMOVING OF MAJOR PARTS (LC-70LE857E/K/RU,858E)
1. Removing of Stand Unit and Rear Cabinet Ass'y
1. Remove the 1 lock screw and detach the Stand Support Ass’y.
2. Remove the 4 lock screws (3) and detach the Stand Unit (4).
3. Remove the 1 lock screw (5) and detach the AC Cord Cover (6).
4. Disconnect AC wire and detach the AC Cord (7).
5. Remove the 29 lock screws (8), 5 lock screws (9) 4 Hooks and detach the Rear Cabinet Ass'y (10).
Ԝ
ԝAC Cord Cover
Ԟ
AC Cord
ԟ
ԟ
ԟ
ԟ
ԟ
ԡRear Cabinet Ass'y
Lock the hook
ԟԟԟԟԟ
ԟ
ԟ
ԟ
ԟ
Ԡ
ԟ
ԟ
ԚԚ
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Ԡ
Ԡ
Lock the hook
4 – 5
ԙStand Support Ass'y
Ԡ
Ԡ
ԟ
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
2. Removing of Speaker (L/R), KEY Unit and Bottom Cover.
1. Remove the 4 Hooks and detach the Bottom Cover(1).
2. Detach the Speaker(L) (2), Speaker(R) (3).
3. Disconnect the SP wire.
4. Disconnect the RC wire.
5. Detach the KEY Unit Ass'y(4).
6. Remove the 2 Hooks and detach the Key Button (5) from Key Button Cover (7).
7. Disconnect the KM wire.
8. Detach the KEY Unit (6) from KEY Button(5).
SP
Ԛ
Speaker (R)
HookHook
Ԙ
Bottom Cover
RC
SP
ԙ
Speaker (L)
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4 – 6
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
3. Removing of Connectors
1. Disconnect the following connectors from the MAIN Unit. (PD, SB, LV)
2. Disconnect the following connectors from the POWER Unit. (L1, L2 , PD, AS)
3. Disconnect the following connectors from the LCD CONTROL Unit. (PL, LW)
4. Remove the 6 lock screws (1) and detach the Rear Cover (13) and remove 8 lock screws (2) and detach the Front Cover Ass'y (9).
5. Detach the BLUETOOTH Unit (4).
6. Disconnect the BT wire.
7. Detach the ICON Unit (5).
8. Disconnect the CI wire.
9. Detach the R/C OPC Unit (6).
10.Disconnect the RA wire.
11.Remove the 2 lock screws (12) and detach the ECO-SW (15).
12.Remove the 10 lock screws (10), 8 lock screws (11), 2 look screws(10-2) and detach the B/L Support Angle Ass'y (Bottom) (12).
13.Detach the Speaker Unit (Woofer) (14).
Ԧ'%159
AS
12
12
٨Front Cover Ass'y
ԛBLUETOOTH Unit
BT
L1L2
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PDSB
PD
LV
PL
LW
AS
ԠFront Cover Ass'y
22222222
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ԜICON Unit
ԝR/C OPC Unit
CI
RA
11
10
10
1111
ԣ$.5WRRQTV#PING#UU[$QVVQO
10101010
1111
11
11
1010
10
1111
10
4 – 7
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
4. Removing of 70"LCD Panel Module Unit, LCD CONTROL Unit, MAIN Unit, POWER Unit.
1. Remove the 18 lock screws (1) and detach the 70" LCD Panel Module Unit(2).
2. Remove the 4 Ferrite Cores (3), 2 connecting cords(FFC80P) (4), 2 connecting cords(FFC64P) (5), 6 lock screws (6) and detach the LCD CONTROL Unit (7).
3. Remove the 5 lock screws (8),1 USB Memory (8-2) and detach the Main Shield (9) remove 2 lock screws (17), 1 lock Hexagon (19) (LC70LE857E/RU only) and detach the MAIN Unit (11), Terminal Angle Bottom Ass'y (10) and Earth Spring (18).
4. Remove the 6 lock screws (12) and detach the POWER Unit (13).
5. Remove the 4 lock screws (14) and detach the VESA Angle Ass'y (15).
6. Remove the 8 lock screws (16) and detach the Stand Angle (17).
1
14
1
12
Ԧ8'5##PING#UU[
14
8
8-2
1
1
MAIN UnitԢ
12
1
1
ԞLCD CONTROL Unit
14
14
ԡTerminal Angle
Bottom Ass'y
Ԧ8'5##PING
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ԤPOWER Unit
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5VCPF#PINGԨ
ԚFerrite Core
16
16
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ԛFFC80P
ԜFFC64P
ԠMain Shield
1
1
1
ԙ70" LCD Panel
˴Module Unit
17
17
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NOTE: Remove the USB memory from the MAIN Unit, when you replace the MAIN Unit, please attach the USB memory to the new MAIN Unit.
4 – 8
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
(6) Stick***
PSPAZD031WJKZ
20*20*t7 COOLINGSHEET
(3) Stick***
PSPAZD031WJKZ
COOLER:20x20 t7
[3] The location putting on the heat measure sheet
1. Points to be checked and precautions when servicing the unit
Mount the main PWB Ass’y on the backlight chassis and check that the EMI-prevention parts are not peeled and twisted from the access holes. (The
EMI-prevention parts, conductive nonwoven fabric gaskets, must be seen from the access holes.)
[Countermeasure]
Attach the conductive nonwoven fabric gaskets on the shielded case on the main PWB.
State where the main PWB and shielded case are assembled
Access hole
Access hole
The following is a drawing mounting the main PWB Ass’y on the backlight chassis. (The parts indicated by -> are the access holes for confirmation.)
(Main PWB Ass’y => State where the shielded case and RF terminal angle are mounted on the main PWB)
4 – 11
LC-60LE855E/K,60/70LE857E/RU,858E,70LE857K
LC60LE855E
CHAPTER 5. ADJUSTMENT
Service Manual
[1] ADJUSTMENT PROCEDURE
1. Adjustment method after PWB and/or IC replacement due to repair
The unit is set to the optimum at the time of shipment from the factory.
If any value should become improper or any adjustment is necessary due to the part replacement, make an adjustment according to the following procedure.
1. Procure the following units in order to replace the main unit.
MAIN UNIT: DKEYDG216FM51 (LC-60LE855E/K)
MAIN UNIT: DKEYDG216FM52 (LC-60LE857E/RU, LC-70LE857E/K/RU)
MAIN UNIT: DKEYDG216FM53 (LC-60LE858E, LC-70LE858E)
NOTE: [Caution when replacing IC (IC2004) in the main unit]
The above IC are Monitor microprocessor.
Before replacing the relevant part, procure the following parts in which the data have been rewritten.
IC2004RH-iXD515WJN8QMonitor microprocessor
NOTE: [Caution when replacing ICs (IC3301, IC3103) in the main unit]
When replacing either IC3301 or IC3103, exchange MAIN units for
DKEYDG216FM51 (LC-60LE855E/K)
DKEYDG216FM52 (LC-60LE857E/RU, LC-70LE857E/K/RU)
DKEYDG216FM53 (LC-60LE858E, LC-70LE858E) .
Each part should not be individually exchanged.
NOTE: HDMI ROM Writing
After replacing IC2601, execute “HDMI EDID WRITE” on the page 5/21.
Please execute it after checking MODEL NAME & INCH SIZE. are correct.
If MODEL NAME & INCH SIZE. are not correct, set them previously. (Refer to 2.)
The ROM data based on information of MODEL NAME & INCH SIZE.
1) Enter the process adjustment mode in TV.
2) Use the cursor keys ( / ) and CH keys (/) of R/C to select the item [HDMI EDID WRITE] on the page 5/21.
3) It is completed with OK displayed.
2. After replacing the LCD panel or LCD control/MAIN UNIT, check MODEL NAME in the following procedure.
1) Enter the process adjustment mode in TV.
2) Use the cursor keys ( / ) and CH keys (/) of R/C to select the item [MODEL NAME] on the page 21/21.
3) Verify that the Model name is displayed.
4) If the Model name doesn’t match, select the values of the Model name with the VOL keys (+/-).
5) After selection in Step 4), press the OK key, and it is completed with OK displayed.
6) Use the cursor keys ( / ) and CH keys (/) of R/C to select the item [PANEL_SIZE] on the page 21/21.
7) Verify that the panel size is displayed.
8) If the size doesn’t match, select the values of the panel size with the VOL keys (+/-).
9) After selection in Step 8), press the OK key, and it is completed with OK displayed.
10)After setting [MODEL NAME] [PANEL_SIZE], unplug the AC power cord and plug it back in.
3. After replacing the LCD panel or LCD control PWB, adjust the VCOM in the following procedure.
1) Enter the process adjustment mode.
2) Use the cursor keys ( / ) and CH keys (/) of R/C to select the item [VCOM ADJ] on the page 10/21.
3) Press the OK key to verify that the adjustment pattern is displayed.
4) Use VOL keys (+/-) of R/C to adjust the flicker in the center of the screen to minimum.
5) When the optimal state is achieved in Step 4), press the OK key to turn the pattern to OFF.
5 – 1
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