panasonic th_42_47lf20e Datasheet

Order Number ITD1009085CE

FULL HD LCD Display

Model No. TH-42LF20E

TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 3

1.1. General Guidelines---------------------------------------- 3

1.2. Touch-Current Check------------------------------------- 3

2 Warning -------------------------------------------------------------- 4

2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices---------- 4

2.2. About lead free solder (PbF)---------------------------- 5

3 Service Navigation ----------------------------------------------- 6

3.1. Applicable signals ----------------------------------------- 6

4 Specifications ----------------------------------------------------- 8
5 Operating Instructions------------------------------------------ 9
6 Service Mode ----------------------------------------------------- 11

6.1. Service Menu Function (1) -----------------------------11

6.2. Service Menu Function (2) -----------------------------12

6.3. Service Mode Function (1) -----------------------------13

6.4. Service Mode Function (2) -----------------------------14

7 Troubleshooting Guide----------------------------------------15
8 Disassembly and Assembly Instructions ---------------16

8.1. Flowchart for disassembly------------------------------16

Model No.

PAG E PAG E

8.2. Preparations ----------------------------------------------- 17

8.3. Pedestal (option) removal------------------------------ 17

8.4. Rear cover removal-------------------------------------- 17

8.5. Replacement method for main board and jack

8.6. Replacement method for Power board ------------- 19

8.7. Replacement method for AC cord bracket -------- 19

8.8. Cabinet back removal (42 type) ---------------------- 20

8.9. Cabinet back removal (47 type) ---------------------- 20

8.10. When removing the cabinet back with the

8.11. Replacement method for speakers------------------ 20

8.12. Key SW board replacement --------------------------- 20

8.13. Connector board removal ------------------------------ 21

8.14. LCD panel replacement -------------------------------- 21

8.15. Replacement method for RC+LED board---------- 22

8.16. Cabinet front replacement ----------------------------- 22

8.17. Cabinet back replacement ----------------------------- 23

9 Block Diagram --------------------------------------------------- 27

TH-47LF20E

board -------------------------------------------------------- 18

board connected ----------------------------------------- 20

© Panasonic Corporation 2010
Unauthorized copying and distribution is a violation
of law.

TH-42LF20E / TH-47LF20E

9.1. Block (1 of 2) Diagram ---------------------------------- 27

9.2. Block (2 of 2) Diagram ---------------------------------- 28

10 Wiring Connection Diagram --------------------------------- 29

10.1. Wiring Connection Diagram (1)----------------------- 29

10.2. Wiring Connection Diagram (2)----------------------- 31

10.3. Wiring Connection Diagram (3)----------------------- 32

10.4. Wiring Connection Diagram (4)----------------------- 33

11 Exploded View and Replacement Parts List ----------- 34

11.1. Exploded View and Mechanical Replacement
Parts List --------------------------------------------------- 34

11.2. Mechanical Replacement Parts List (42 inch) ---- 50

11.3. Mechanical Replacement Parts List (47 inch) ---- 51

11.4. Electrical Replacement Boards list (42 inch)------ 52

11.5. Electrical Replacement Boards list (47 inch)------ 52

11.6. Boards Layout--------------------------------------------- 52

2

TH-42LF20E / TH-47LF20E

1 Safety Precautions

1.1. General Guidelines

1. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials.

2. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the
wires have been broken or disconnected, do not attempt to repair or re-wire the units. Replace the entire wiring unit instead.

3. When conducting repairs and servicing, do not twist the Fasten connectors but plug them straight in or unplug them straight
out.

4. When servicing, observe the original lead dress.If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.

5. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.

6. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

1.2. Touch-Current Check

1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.

2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground
such as a water pipe, as shown in Figure 1.

3. Use Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network.

4. Check each exposed metallic part, and measure the voltage at each point.

5. Reserve the AC plug in the AC outlet and repeat each of the above measure.

6. The potential at any point (TOUCH CURRENT) expressed as voltage U

For a. c.: U

For d. c.: U

Note:

The limit value of U

mA d. c.
The limit value U

7. In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the customer.

= 35 V (peak) and U2 = 0.35 V (peak);

1

= 1.0 V,

1

= 0.35 V (peak) for a. c. and U1 = 1.0 V for d. c. correspond to the values 0.7 mA (peak) a. c. and 2.0

2

= 35 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 kHz.

1

and U2, does not exceed the following values:

1

Figure 1

3

TH-42LF20E / TH-47LF20E

2 Warning

2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi­tive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec­trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage
caused by electrostatic discharge (ESD).

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alumi­num foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara­ble conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.

Caution

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise ham less motion such as the brush­ing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient
to damage an ES device).

4

TH-42LF20E / TH-47LF20E

2.2. About lead free solder (PbF)

Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.

This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work, we’d
suggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol PbF stamped on the back of PCB.

Caution

• Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40 °C) higher. Please
use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).

• Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).

If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before applying Pb sol­der. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.

• After applying PbF solder to double layered boards, please check the component side for excess solder which may flow onto the
opposite side. (see figure below)

Suggested Pb free solder

There are several kinds of Pb free solder available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder. How­ever, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used.

5

TH-42LF20E / TH-47LF20E

3 Service Navigation

3.1. Applicable signals

6

TH-42LF20E / TH-47LF20E

7

TH-42LF20E / TH-47LF20E

4 Specifications

Power Source 220 - 240 V AC, 50/60Hz
Power Consumption

Power on 240 W (42 inch) 290 W (47 inch)
Stand-by condition 0.2 W (42 inch) 0.2 W (47 inch)
Power off condition 0.2 W (42 inch) 0.2 W (47 inch)

LCD Display panel 42-inch IPS panel, 16:9 aspect ratio (42 inch) 47-inch IPS panel, 16:9 aspect ratio (47 inch)
Screen size 930 mm (W) × 523 mm (H) × 1,067 mm (diagonal) (42 inch)

1,040 mm (W) × 585 mm (H) × 1,193 mm (diagonal) (47 inch)

(No.of pixels) 2,073,600 (1,920 (W) × 1,080 (H)) (42 inch) 2,073,600 (1,920 (W) × 1,080 (H)) (47 inch)

[5,760 × 1,080 dots] [5,760 × 1,080 dots]

Operating condition

Temperature 0 °C - 40 °C
Humidity 20 % - 80 %

Applicable signals

Colour System NTSC, PAL, PAL60, SECAM, NTSC 4.43, PAL M, PAL N
Scanning format

PC signals VGA, SVGA, XGA, SXGA

Connection terminals

AV IN VIDEO BNC 1.0 Vp-p (75-ohm)

S-VIDEO Mini DIN 4PIN Y: 1.0 Vp-p (75-ohm), C: 0.286 Vp-p (75-ohm)
AUDIO L-R RCA Pin jack × 2 0.5 Vrms

HDMI 1/2 TYPE A Connector
COMPONENT / RGB IN

G/Y BNC with sync 1.0 Vp-p (75-ohm)
B/P

B/CB

R/P

R/CR

AUDIO L-R RCA Pin jack × 2 0.5 Vrms

DVI-D IN DVI-D 24 Pin Compliance with DVI Revision 1.0

AUDIO Stereo mini jack (M3) × 1 0.5 Vrms, Shared with PC IN

PC IN High-Density Mini D-sub 15 Pin G with sync 1.0 Vp-p (75-ohm)

AUDIO Stereo mini jack (M3) × 1 0.5 Vrms, Shared with DVI-D IN

SERIAL External Control Terminal

Sound

Speakers 50 mm × 90 mm × 2 pcs
Audio Output 10 W [5 W + 5 W] (10 % THD)

Accessories Supplied

Remote Control Transmitter N2QAYB000535
Batteries R6 Size × 2
Clamper TMME289 × 3

Dimensions (W × H × D) 968 mm × 561 mm × 101 mm (42 inch) 1,079 mm × 624 mm × 101 mm (47 inch)
Mass (weight) approx. 18.0 kg (42 inch) approx. 23.0 kg (47 inch)
Note:

• Design and specifications are subject to change without notice. Mass and dimensions shown are approximate.

• This equipment complies with the EMC standards listed below.
EN55022, EN55024, EN61000-3-2, EN61000-3-3.

525 (480) / 60i 60p, 625 (575) / 50i 50p, 750 (720) / 60p 50p, 1125 (1080) /

60i 60p 50i 50p 24p 25p 30p 24sF, 1250 (1080) / 50i

UXGA ..... (compressed)

Horizontal scanning frequency 30 - 110 kHz
Vertical scanning frequency 48 - 120 Hz

BNC 0.7 Vp-p (75-ohm)

BNC 0.7 Vp-p (75-ohm)

Content Protection Compatible with HDCP 1.1

G without sync 0.7 Vp-p (75-ohm)
B:0.7 Vp-p (75-ohm)
R:0.7 Vp-p (75-ohm)
HD / VD:1.0 - 5.0 Vp-p (high impedance)

VBS (use HD port) with picture 1.0 Vp-p (high impedance)

without picture 0.3 Vp-p (high impedance)

D-sub 9 Pin RS-232C compatible

8

5 Operating Instructions

TH-42LF20E / TH-47LF20E

9

TH-42LF20E / TH-47LF20E

10

6 Service Mode

6.1. Service Menu Function (1)

TH-42LF20E / TH-47LF20E

11

TH-42LF20E / TH-47LF20E

6.2. Service Menu Function (2)

12

6.3. Service Mode Function (1)

TH-42LF20E / TH-47LF20E

13

TH-42LF20E / TH-47LF20E

6.4. Service Mode Function (2)

14

7 Troubleshooting Guide

TH-42LF20E / TH-47LF20E

15

TH-42LF20E / TH-47LF20E

8 Disassembly and Assembly Instructions

8.1. Flowchart for disassembly

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TH-42LF20E / TH-47LF20E

8.2. Preparations

To avoid damaging the LCD panel, lay out a soft cloth or towel
and lay down the unit so the front side is facing down.

Precautions when replacing each module

• Always perform the procedure below when replacing each
module.

• Be careful not to overtighten the screws when installing each
module.

8.3. Pedestal (option) removal

If the pedestal (option) is installed, remove the 2 screws for the
pedestal on each side, and then remove the pedestal.

8.4. Rear cover removal

First remove the 10 screws on the rear cover, and then remove
the rear cover. (SCR TPG BRZ 4x10)

Boards & Parts location

This unit is designed so that removing the rear cover reveals
the configuration of the boards.

17

TH-42LF20E / TH-47LF20E

8.5. Replacement method for main
board and jack board

1. The terminal section is screwed in from the outside, so
remove the screws as shown in the illustration.

2. Remove 1 screw on the jack board that screws in the
earth terminal which comes off from the left side of the
main board. (SCR PAN+SW+W 3X8)

3. Remove the 7 screws that screw the shield casing onto
the main board. (SCR PAN+SW+W 3X8)

4. Remove the coupler that is connected to the main board,
and then carefully remove the main board. Couplers on
the main board:
K16C, KSPR, KSPL, KLVP, K16B, K16A, K8F, K72E,
K72D

5. Replace the main board with the replacement board.

6. Remove the 4 screws that screw in the jack board.
(SCR PAN+SW+W 3X8)

7. Remove the couplers that is connected to the jack board
and carefully remove the jack board.
Couplers on the jack board: K39H, K39G, K19F, K10E,
K10D

8. Replace the jack board with the replacement board.

Precautions when removing and installing

• The lead wire is affixed to the shield casing on the main
board with aluminum foil tape. Re-use the shield casing
with the lead wire affixed as is.

• The gasket is affixed to both sides of the main board.
The gasket is not included on the replacement board, so
replace the gasket at the same time as well.

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TH-42LF20E / TH-47LF20E

8.6. Replacement method for

Power board

1. Remove the couplers that are connected to the Power
board.
Couplers on the Power board: K601, KIV2, KIV1, K6C,
K6B, K6A

8.7. Replacement method for AC
cord bracket

1. Remove the K601 connector for the AC cord bracket from
the Power board.

2. Remove 1 screw that screws in the earth wire for the AC
cord.
Screw: SCR BIN 4X6

3. Pull out the AC cord bracket from the slit on the cabinet
back.

4. Remove the screws (Qty. 2) and nuts (Qty. 2) shown in
the illustration, and then remove the AC cord component.
Screw: SCR BRZ 3X10, Nut: NUT HEX 3

2. Remove the screws (47V type: 9 screws, 42V type: 8
screws) that screw the Power board in place. (SCR
PAN+SW+W 3X8) Pull out the boss (plastic) that holds
the Power board.

3. Remove the Power board carefully and replace it with the
replacement board. (The replacement board is equipped
with a fuse.)

5. Replace the AC cord.

Precautions when removing and installing

• The lead wire is affixed to the shield casing on the main
board with aluminum foil tape. Re-use the shield casing
with the lead wire affixed as is.

• The gasket is affixed to both sides of the main board.
The gasket is not included on the replacement board, so
replace the gasket at the same time as well.

19

TH-42LF20E / TH-47LF20E

8.8. Cabinet back removal (42 type)

Precautions when removing and installing

• Be careful not to strip the screw's thread, etc., as the screws
that screw into the cabinet back's periphery impact the out­ward appearance.

• When re-installing the rear cover, be careful which holes the
wires come out from. (Refer to the wiring connection dia­gram)

1. Remove the screws (Qty. 23) on the periphery of the cab­inet back. (SCR FLT 4X12)

2. Remove the screws (Qty. 4) on the inside part of the rear
cover. (SCR BIN 4X6)

3. Remove the cabinet back carefully.

8.10. When removing the cabinet
back with the board connected

1. Remove the following board couplers.
Jack board: K39H
Main board: KLVP
Power board: KIV1, KIV2

2. Remove according to the previous section "Cabinet back
removal".

8.11. Replacement method for
speakers

1. Remove the cabinet back.

2. Peel off the tape halfway that affixes the speaker lead on
the inside of the cabinet back, and then remove the
speaker lead. (Refer to the wiring connection diagram)

3. Remove the screws (Qty. 4 on each side) that screw in
the speaker unit and then replace it with the repair
speaker unit. (SCR S-TPG BRZ+FLG 3.0X8.0 V)

8.9. Cabinet back removal (47 type)

Precautions when removing and installing

• Be careful not to strip the screw's thread, etc., as the screws
that screw into the cabinet back's periphery impact the out­ward appearance.

• When re-attaching the cabinet back, be careful which holes
the wires come out from. (Refer to the wiring connection dia­gram)

1. Remove the screws.

2. Remove the cabinet back carefully.

8.12. Key SW board replacement

1. Remove the cabinet back.

2. Peel off the tape halfway that affixes the lead wire for the
key SW board on the inside of the cabinet back, and then
remove the lead wire. (Refer to the wiring connection dia­gram)

3. Remove the 4 screws and replace the key SW board.
(SCR S-TPG BRZ+FLG 3.0X8.0 V)

Precautions when installing

• The lead wire is affixed to the shield casing on the main
board with the earth part on the key SW board, do not
forget to install so the key SW board is at a right
angle.minum foil tape. Re-use the shield casing with the
lead wire affixed as is.

• Secure the speaker and key SW board lead wires down
onto the inside of the cabinet back with tape so they do
not pop up.

• When re-attaching the rear cover, be careful which holes
the wires come out from. (Refer to the wiring connection
diagram)

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TH-42LF20E / TH-47LF20E

8.13. Connector board removal

1. Peel off the tape halfway that affixes the FFC cable and
lead wire for the connector board to the rear side of the
LCD panel, and remove them from the rear side of the
panel. (Refer to the wiring connection diagram)

2. Remove the FFC cable (K38I) and the coupler (K38H)
from the connector board.

3. Remove the screw (Qty. 1), and remove the connector
board from the rear side of the LCD panel, and then
replace. (SCR PAN+SW 4X6)

8.14. LCD panel replacement

Precautions when replacing the LCD panel

• The 2 lead wires for the inverter (Couplers KIV1 and KIV2),
the black-out tape and the spacer sheet, etc., are supplied
already affixed to the LCD panel.

• The tape that is affixed to the FFC cable and the lead wires
on the connector board are supplied as repair parts. Replace
them at the same time as the LCD panel.

3. While widening the mounting that connects the cabinet
front and the LCD panel, remove the cabinet front from
the LCD panel. When lifting up the LCD panel, hold the
mounting component.

4. Remove the screws (Qty. 8), and then remove the mount­ing from the rear side of the LCD panel. (SCR BIN 4X6)

5. (47V type only) Remove the screws (Qty. 2) and then
remove the Power board holder fittings from the rear side
panel. (SCR BIN 4X4)

• The Power board holder fittings are not available in the
repair parts.

6. Replace the LCD panel with the replacement LCD panel.

7. Use 2 pieces of replacement aluminum foil tape and
cover the screw hole on the upper part of the mounting so
it is affixed to and crosses over the mounting top and the
rear side of the LCD panel.

1. Follow the procedure mentioned previously, and remove
the connector board, the FFC cable and the lead wire
from rear side of the LCD panel.

2. Peel off the 2 pieces of aluminum foil tape that are affixed
to and cross over the rear side of the LCD panel and the
upper part of the mounting that connects the cabinet front
and LCD panel.

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TH-42LF20E / TH-47LF20E

8.15. Replacement method for
RC+LED board

1. Slide the 2 fittings on the inside of the cabinet front toward
the outside and remove.

2. Remove the FFC cable from the RC+LED board's coupler
(K19I), and replace the board with the replacement
board.

8.16. Cabinet front replacement

Precautions when replacing

• The parts that are necessary for replacement (spacer sheet,
Panasonic badge, etc.) are not included. They are supplied
as replacement parts. Replace them at the same time as the
cabinet front.

1. Remove the spacer sheet that is affixed to the inside of
the cabinet front.

2. Slide off the mounting and remove it from the cabinet
front.

3. When replacing the cabinet front, remove the shield RC
and the DEC LED (clear plate) on the inside.
The gasket is affixed to the shield RC. When replacing,
also replace the gasket.

4. The spacer sheet and the gasket are affixed to the fittings
that hold down the RC+LED board.
When replacing the fittings, also replace the spacer sheet
and the gasket.

3. Affix the Panasonic badge to the replacement cabinet
front beforehand.

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TH-42LF20E / TH-47LF20E

4. Install the RC+LED board onto the cabinet front.

5. Slide the mounting on and install it onto the cabinet front.

6. Affix the spacer sheet onto the mounting.

8.17. Cabinet back replacement

Precautions when replacing

• The parts that are necessary for replacement (DEC button,
DEC AV, etc.) are not included. They are supplied as
replacement parts. Replace them at the same time as the
cabinet back.

1. Remove each board, speaker and fitting from the cabinet

back.

2. Remove the screws (Qty. 4) shown in the illustration, and

remove the terminal holder fitting.
(SCR S-TPG BRZ+FLG 3.0X8.0 V)

7. Install the cabinet front, that is prepared beforehand, onto
the set.

3. Remove the screws shown in the diagram, and then
remove the main board holder fitting.
(42V type: Qty. 1 SCR S-TPG BRZ+FLG 3.0X8.0 V)
(47V type: Qty. 3 SCR S-TPG BRZ+FLG 3.0X8.0 V)

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TH-42LF20E / TH-47LF20E

4. (42 type only) Remove the screws shown in the illustra­tion, and then remove the Power board holder fitting.
(SCR S-TPG BRZ+FLG 3.0X8.0 V)

5. Affix the DEC button and DEC AV beforehand to the
repair cabinet back.

tape)

Caution

• Affix the tape so the lead wire is sealed tightly onto the
cabinet back. If the lead wire pops up, it may get close to
the board or a high temperature area and cause a chat­tering noise.

6. Install the main board holder fitting and the terminal
holder fitting to the replacement cabinet back.

7. Affix 3 pieces of aluminum tape to the metal section of the
main board holder fitting and the terminal holder fitting so
they are connected.

8. Install the replacement cabinet back, that is prepared
beforehand, onto the set.

Precautions for replacing

• The terminal holder fitting, the main board holder fitting,
and the Power board holder are available in the replace­ment parts.

• Use the gasket with the holder fitting that is affixed as is.

• The type of tape for affixing, in order to set up the lead
wire on the rear side of the cabinet back, is not included.
When replacing the cabinet back, also replace the type
of tape that is used.

When replacing the button unit that is installed onto the
key SW board, affix a spacer sheet onto the button unit.

When replacing the cabinet back, secure the lead wires
for the speaker and key SW board to the cabinet back
with replacement tape. The circle mark in the picture
below shows where to affix the tape. (Adhesive cloth

24

When replacing the cabinet back, secure the lead wires
for the speaker and main board to the cabinet back with
replacement tape.

TH-42LF20E / TH-47LF20E

25

TH-42LF20E / TH-47LF20E

26

9 Block Diagram

5VSTB

12VA

ON/OFF

24VP

IC1601

1

LUVP

2

3

CS/FB

4

GND

5

OUT6VCC

7

8

VSTR

D651

D652

D650

IC633

1

CSS

2

DELAY

3CF4

RFMIN

5

STBY

6

ISEN

7

LINE

8

DIS

9

PFC_STOP

10

GND11LVG

12

VCC

13

N.C.

14

OUT

15

HVG

16

VBOOT

T6011

COLDHOT

42 :T602
47 :T600

7

1

12

8

3

6

11

2

4

IC602

L605

12

1

5

6

7

8

10

11

9

24VP

24VP

I_PWN

KIV1

1

1

2

3

4

5

6

7

8

9

10

11

12

12

SEL

SEL

K6C

1

1

2

3

4

5

6

7

8

9

10

11

11

KIV2

1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

14

BLON

BLON

I_PWN

12VA

E_PWN

E_PWN

MAIN-ON/OFF

MAIN-ON/OFF

F_5V

F_5V

F_5V

12VA

12VH

5VSTB

24VP

24VH

24VP

12VA

24VP

24VH

24VP

12VH

SWICH1

T652

2

1

5

4

7

8

9

10

3

42 :PC603
47 :D6809

SWICH

IC603

IC605

1

S/OCP

2

BR

3

GND

4

FB/OLP

5

VCC

7

D/ST

8

D/ST

Q604

D603

1

2

3

4

K601

1

4

RL601

SWICH1

SWICH

K6B

1

1

2

3

4

5

6

7

8

9

10

11

12

13

13

K16B

1

1

1

7

7

1

2

3

4

5

6

7

8

9

10

11

12

13

13

PWR-30V

DC416V

520V

400V

400/3A

MAX:AC264V/2.7A

400/3A

MAX:AC264V/2.7A

MAX:AC264V/2.7A

400V

200V

412V

NOISE
FILTER

Q613
Q612

Q614
Q615

Q6800

Q685

Q684

Q690~692

42 :Q6801
47 :Q600,Q601,Q605,Q606

Q1606

Q1601

Q602

Q604

1

1

2

3

4

5

6

7

8

9

10

11

11

BLON

L6603

P_FAIL1

P_FAIL1

K16C

P_FAIL1

P_FAIL1

DCR_VBR

BLON

DCR_VBR

12V_PWR

5VSTB

24V

L6604

5VSTB

L6605

12V/24V_EN

Q6620

Q6621

K6A

1

2

3

4

5

6

7

SWICH1

MAIN_EN

SWICH

SWICH2

K16A

1

2

3

4

5

6

7

MCU_5V

12VPAN_EN

12VPAN_EN

PANEL_12V

IC6600

2

3

7

12V

IC7504

1

2

3

4

1.2VSTB

3.3VSTB

IC7501

1

2

3

4

1.2V_AUD

5VSTB

3.3V_I/O

3.3V_AUD

3.3V_LVDS

Q7501

IC7505

1

2

3

4

3.3V_LBADC

3.3V_ADC

3.3V_HDMI

Q7502

1

2

3

45

6

7

8

3.3V

5VD_PWR

IC7503

1

2

3

4

1.2V

1.8V_DDR

IC5503

1

2

3

4

5

6

7

8

9

IC7506

1

2

3

4

0.9_DDR_VREF

1.2V_DPRX

1.8V_DDR

1.2V_ADC

3.3V_DDR

1.2V_HDMI

1.2V

1.2V_CORE

3.3V

3.3V_SW

IC6612

123

45

678

9

PWM1

DCR_VBR

DCR_IN

OPC_EN

OPC_EN

KLVP

PANEL_12V

3.3V_I/O

3.3V_I/O

PEL-TEST

PEL-TEST

LCD PANEL

Q4001

MAIN CHIP

IC7200

(NEXT PAGE)

SWICH1

MAIN_EN

SWICH

SWICH2

MAIN BOARD

POWER BOARD

(42 ONLY)

Q607

9.1. Block (1 of 2) Diagram

TH-42LF20E / TH-47LF20E

27

TH-42LF20E / TH-47LF20E

9.2. Block (2 of 2) Diagram

12V_PWR

IC2009

MUTE

IC2010

AMP_STBY

IC8134

12V

OUT_R

TO POWER BOARD
FROM CONNECTOR BORD K16A

SP-LSP-R

PC_DET

IR

TX
RX
DRXD

DTXD

5VSTB

Q7206

IC2006

KEY_POWER

LED_GREEN

UART-SW

RXD1

3.3VSTB

IC2005

TXD1

AV1_Y
AV1_C

AV1_S

AV3_CVBS+

KEY 0

LED_RED

LIGHT_DET

AV_IN_L

AV_IN_R

PC_R

PC_L

DVI_IN_L

DVI_IN_R

AV2_Y/G
AV2_PB/R

AV2_PR/B

VGA_G/Y

VGA_R/PB

VGA_B/PR

H_SINC

V_SINC

VGA_IIC

TXD0

RXD1

UART-SW

Cross
Point
Switch

MUX

TXD1

Main Chip

IC7200

Triple
10-bit
ADC 1

Triple
10-bit
ADC 2

Digital
Input

DVI \
HDMI

Display
Port Rx

ADC
inputs,
I2S\
SPDIF Rx

3D Video
Decoder

Audio
Mux

VBI Data
Processor

I2S SPDIF Tx

IC5500

Audio
DSP

MCU_5V

IC2007

MCU_5V

RXD0

RTC

IC2008

SUB MCU

IC7201

10

IC2003

SYNC_DET

20

19

18

17

16

15

14

5VD_PWR

13

12

11

SWICH

KSPLKSPR

R+

43

PVD144PVD1

MUTE

STBY

VIN1+

L-

L+

R-

PLC

25

OUT2+26OUT2+30OUT2-31OUT2-36OUT1-37OUT1-41OUT1+42OUT1+

VIN2+

45

RXD0

MCU_5V

TXD0

AUDIO AMP.

IC001

SPEAK_SW_R

Q615

MAIN_EN

SWICH2

SWICH1

SWICH

OUT_L

SWH-SPEK

RS-232C SW

DDR SDRAM

IC5501

Memory

OSD

Controller

Controller

DCDi, Motion Adaptive
De-interlacing, Scaling,
Shaping Filter,

2nd Channel
Processing +
DCDi EdgeTM

Audio
DAC

Enhancer, ACC II,
ACM-3D, 3x3 Matrix,
PicBlend, CLUTs,
OSD Blend

3x3 Matrix

Embedded
Micro­processor

I2C BUS

LVDS Tx

Output
Formatter

Display
Port Tx

General
Purpose
I \ O

SPI Interface

ADC

IR I/F

MAIN BOARD

PWM1

TO LCD PANEL

OPC_EN

PEL-TEST

FROM CONNECTOR BOARD(KLVP)

EEPROM

MSTR1_SCL
MSTR1_SDA

SPI Serial

SPI_CEN

SPI_DI

SPI_DO
SPI_CLK

FAIL P_FAIL 1

IC8001

IC8000

Q7207
Q7208

KEY SW BOARD

ENTER

POS+

POS-

MENU

INPUT

SW1906

SW1902SW1903SW1904SW1905

K19G

SW1901

MCU5V

IC1951

IR

GREEN

RED

IC1952

D1951

IOUT

VCC

GREEN

3.3STB

BACKLIGHT

RED

GND

K19I

IR

5V

K39H

RC+LED BOARD

K39G

Q1902

3.3VSTB

Q1901

KEY0

K19F

IC2012

LIGHT_DET

BACKLIGHT

KEY-POWER

5VD

3.3VSTB

RED

GREEN

IR

3.3STB

SWICH2(F-5V)

SWICH1

AV1_C

K72E K72D

K10E K10D

AV1_C

3.3VSTB

JACK BOARD

RX

TX

RS232C

IN

AV1_Y

AV1_C

AV1_Y

Y / C

DVI_IN_L

DVI_IN_L

DVI_IN_R

AV1_Y

IN

TX

DVI_IN_R

TX

AV1_S

RX

RX

DVI_IN_R

DVI

L / R

IN

DVI_IN_L

AV3

CVBS

PC_L

PC_R

PC_R

PC_L

PC_L

AV3_CVBS+

L / R

IN

AV3_CVBS+

AV3_CVBS+

AV_IN_L

PC_R

PC

IN

AV_IN_L

AV_IN_R

AV_IN_R

L / R

AV_IN_R

AV

IN

AV1_S

AV1_S

AV_IN_L

MUTE

OUT_R

AMP_STBY

PC_DET

Q1501
Q1502
Q1503

OUT_L

SWH-SPEK

MCU_5V

IC804

RTC

REAL TIME CLOCK

VGA_R/PB

VGA_G/Y

SDA

SCL

H_SINC

VGA_B/PR

PC IN

RTC

V_SINC

CLOCKOUT

IIC

EEPROM

IC1501

VGA_IIC

POW_SINK

HDMI_SDA

CLOCKOUT

SCL
SDA

SYNC_DET

Q2001
Q2003

HDMI_SCL

HDMI1_DATA_CLOCK

3.3VSTB

IC805

HDMI_HPD

AV2_Y/G

AV2_PB/R

AV2

IN

HDMI/DVI-D SW

IC750

HDMI1_HPD
HDMI1_SDA
HDMI1_SCL

HDMI1_DATA_CLOCK

HD5V1

HD5V1

Q310

HDMI1_CEC

+5V

HDMI1_IIC

HDMI1_DATA_CLOCK

AV2_PR/B

HDMI 1

IN

POW_SINK

HDMI1_HPD

HDMI_SDA

HDMI_SCL

HDMI2_HPD

HDMI2_SDA

HDMI2_IIC

HDMI2_DATA_CLOCK

HDMI 2

HDMI1_DATA_CLOCK

IIC

HDMI2_SCL

HDMI2_DATA_CLOCK

HD5V2

HDMI2_CEC

+5V

IN

SCL

HD5V2

HDMI2_HPD

Q311

SDA

HD5V3

TMDS_DATA_CLOCK

HDMI_HPD

Q701

3.3VSTB

TMDS_DATA_CLOCK

DVI_SCL

DVI_SDA

HOT_PLUG

HD5V3

+5V

DVI_IIC

DVI-D

HOT_PLUG

Q309

28

10 Wiring Connection Diagram

10.1. Wiring Connection Diagram (1)

TH-42LF20E / TH-47LF20E

29

TH-42LF20E / TH-47LF20E

30

10.2. Wiring Connection Diagram (2)

TH-42LF20E / TH-47LF20E

31

TH-42LF20E / TH-47LF20E

10.3. Wiring Connection Diagram (3)

32

10.4. Wiring Connection Diagram (4)

TH-42LF20E / TH-47LF20E

33

TH-42LF20E / TH-47LF20E

11 Exploded View and Replacement Parts List

11.1. Exploded View and Mechanical Replacement Parts List

11.1.1. Exploded View

11.1.1.1. Cabinet front (1)

34

11.1.1.2. Cabinet front (2)

TH-42LF20E / TH-47LF20E

35

TH-42LF20E / TH-47LF20E

11.1.1.3. Lid back

36

11.1.1.4. Screws for Cabinet back (42”)

TH-42LF20E / TH-47LF20E

37

TH-42LF20E / TH-47LF20E

11.1.1.5. Screws for Cabinet back (47”)

38

11.1.1.6. Cabinet back (42”)

TH-42LF20E / TH-47LF20E

39

TH-42LF20E / TH-47LF20E

11.1.1.7. Cabinet back (47”)

40

11.1.1.8. Inside of Cabinet back

TH-42LF20E / TH-47LF20E

41

TH-42LF20E / TH-47LF20E

11.1.1.9. Screws for board (42”)

42

11.1.1.10. Screws for board (47”)

TH-42LF20E / TH-47LF20E

43

TH-42LF20E / TH-47LF20E

11.1.1.11. Screws for board holder (42”)

44

11.1.1.12. Screws for board holder (47”)

TH-42LF20E / TH-47LF20E

45

TH-42LF20E / TH-47LF20E

11.1.1.13. Gasket around the AC inlet and Main board

46

11.1.1.14. Wire, Panel mounting bracket

TH-42LF20E / TH-47LF20E

47

TH-42LF20E / TH-47LF20E

11.1.1.15. Packing, Accessories (42”)

48

11.1.1.16. Packing, Accessories (47”)

TH-42LF20E / TH-47LF20E

49

TH-42LF20E / TH-47LF20E

11.2. Mechanical Replacement Parts List (42 inch)

Safety Ref.

1 T6103511795 CABINET FRONT 1
2 TBMA162 PANASONIC BADGE 1
4 T6103528212 SPACE SHEET 4
5 T6550038838 SPACER SHEET 4
6 TZ6103504162 MOUNTING CF & CB 4
7 TZ6103506708 MTG C/F & C/B

8 TZ6103506715 MTG C/F & C/B

13 TZ6103504285 MOUNTING DEC 2
16 TZ6103529578 SHIELD RC 1
17 T6103504179 DEC LED 1
19 T6451037602 FLEXIBLE FLAT

20 T6103511887 LID BACK 1
21 T4112062406 SCR TPG BRZ 4X10 10
22 T6103510521 LABEL RATING 1
24 T6103504407 LABEL FOR AC

25 T4112168603 SCR FLT 4X12 23
26 T4111899003 SCR BIN 4X6 13
27 T6103534558 BACK CABINET

32 T6103531052 DEC BUTTON 1
33 T6103504421 DEC AV ENGLISH 1
34 TZ6103511917 BUTTON UNIT 1
35 T6103450971 EARTH LVDS 1
36 T4111926402 SCR S-TPG

38 T6520033436 L-SPEAKER-8 1
39 T6520033429 R-SPEAKER-8 1
40 T6550022554 ADHESIVE CLOTH

44 T4110365509 SCR PAN+SW+W 3X8 19
45 T6103505701 FIXER BOSS B 1
46 T6103505695 FIXER BOSS A 1
47 T4110418403 SCR PAN 3X6 1
49 T3120730406 SPECIAL SCREW 6
50 T4110759407 SCR TPG BRZ 3X8 3
51 T4110418601 SCR PAN 3X6 2
52 TZ6103504278 AC HOLDER ASSY 1
53 T6103505688 FIXER AC CORD A 1
55 T6520033634 AC INLET 1
56 T4112205902 SCR BRZ 3X10 2
57 T4112206206 NUT HEX 3 2
59 T6103407241 GASKET AW 1
60 T6103341279 GASKET AW 2
61 T9550003837 FIXER HOOK 3
62 T9101305540 FIXER HOOK-

64 T9450403003 CORE-FERRITE 1
65 TZ6103504186 MOUNTING PANEL A 2
66 TZ6103504193 MOUNTING PANEL B 2
67 T6103529950 CAS ACCESSORIES A1

68 T6103534190 CARTON CASE 1
69 T6103504537 BAG 1
70 T6103529707 CUSHION TOP 1
71 T6103529691 CUSHION BTM 1
72 TMMX169 AC CORD CLAMPER B2

73 K2CT3YY00016 AC CORD 1
75 N2QAYB000535 REMOTE CONTROL 1
76 T6103528281 BAG MANUAL 1
77 T6103509167 CD-ROM-OWNERS

78 T6103509297 QUICK SETUP

78 T6103526515 QUICK SETUP

Part No. Part Name &

No.

Description

TOP

BTM

CABLE

CORD

ASSY

BRZ+FLG 3.0X8.0
V

TAPE

D13(PP)

MANUAL

GUIDE (ENGLISH)

GUIDE (GERMAN)

Safety Ref.

Pcs Remarks

1

1

1

1

1

25

24

1

1

1

1

No.

78 T6103526522 QUICK SETUP

78 T6103526539 QUICK SETUP

78 T6103526546 QUICK SETUP

78 T6103526553 QUICK SETUP

78 T6103526560 QUICK SETUP

78 T6103526577 QUICK SETUP

86 T6103519784 FIXER CABLE 1
87 T4111922503 SCR PAN+SW 4X6 1
89 T6103531670 T-ALUMINUM 2
90 T6103533506 T-ALUMINUM A 2
91 T6103534107 T-ALUMINUM C 1
93 T6103533940 HEAT CAUTION

94 T6103535043 T-EPOXY 2
95 K2CN3YY00004 CORD POWER-2.0MK 1

T6451038883 LCD PANEL 1
T6520033184 LVDS CABLE 51P

T6103511535 CABLE (K39G-

T6103511467 CABLE (K16A-

T6103520490 CABLE (K38H-

T6103511528 CABLE (K72E-

T9103216158 CABLE (K16C-

T6103511498 CABLE (K72D-

T6103520483 CABLE (K16B-

Part No. Part Name &

Description

GUIDE (ITALIAN)

GUIDE (DUTCH)

GUIDE (FRENCH)

GUIDE (DANISH)

GUIDE (SPANISH)

GUIDE (SWEDISH)

CARD

(LCD PANEL-KLVP)

K19G)

K6A)

JK39H)

K10E)

K6C)

K10D)

K6B)

Pcs Remarks

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

50

11.3. Mechanical Replacement Parts List (47 inch)

Safety Ref.

1 T6103511870 CABINET FRONT 1
2 TBMA162 PANASONIC BADGE 1
4 T6103528212 SPACE SHEET 4
5 T6550038821 SPACER SHEET 2
6 TZ6103504162 MOUNTING CF & CB 4
7 TZ6103506722 MTG C/F & C/B

8 TZ6103507095 MTG C/F & C/B

13 TZ6103504285 MOUNTING DEC 2
16 TZ6103529578 SHIELD RC 1
17 T6103504179 DEC LED 1
19 T6451032973 FLEXIBLE FLAT

20 T6103511887 LID BACK 1
21 T4112062406 SCR TPG BRZ 4X10 10
22 T6103510545 LABEL RATING 1
24 T6103504407 LABEL FOR AC

25 T4112168603 SCR FLT 4X12 23
26 T4111899003 SCR BIN 4X6 13
27 T6103534565 BACK CABINET

32 T6103531052 DEC BUTTON 1
33 T6103504421 DEC AV ENGLISH 1
34 TZ6103511917 BUTTON UNIT 1
35 T6103450971 EARTH LVDS 1
36 T4111926402 SCR S-TPG

38 T6520033436 L-SPEAKER-8 1
39 T6520033429 R-SPEAKER-8 1
40 T6550022554 ADHESIVE CLOTH

44 T4110365509 SCR PAN+SW+W 3X8 19
45 T6103505701 FIXER BOSS B 1
49 T3120730406 SPECIAL SCREW 6
50 T4110759407 SCR TPG BRZ 3X8 3
51 T4110418601 SCR PAN 3X6 2
52 TZ6103504278 AC HOLDER ASSY 1
53 T6103505688 FIXER AC CORD A 1
55 T6520033412 AC INLET 1
56 T4112205902 SCR BRZ 3X10 2
57 T4112206206 NUT HEX 3 2
59 T6103407241 GASKET AW 1
60 T6103341279 GASKET AW 2
61 T9550003837 FIXER HOOK 3
64 T9450403003 CORE-FERRITE 1
67 T6103529950 CAS ACCESSORIES A1

68 T6103534206 CARTON CASE 1
69 T6103507200 BAG 1
70 T6103529714 CUSHION TOP 1
71 T6103529745 CUSHION BTM 1
72 TMMX169 AC CORD CLAMPER B2

73 K2CT3YY00016 AC CORD 1
75 N2QAYB000535 REMOTE CONTROL 1
76 T6103528281 BAG MANUAL 1
77 T6103509167 CD-ROM-OWNERS

78 T6103509297 QUICK SETUP

78 T6103526515 QUICK SETUP

78 T6103526522 QUICK SETUP

78 T6103526539 QUICK SETUP

78 T6103526546 QUICK SETUP

78 T6103526553 QUICK SETUP

Part No. Part Name &

No.

Description

TOP

BTM

CABLE

CORD

ASSY

BRZ+FLG 3.0X8.0
V

TAPE

MANUAL

GUIDE (ENGLISH)

GUIDE (GERMAN)

GUIDE (ITALIAN)

GUIDE (DUTCH)

GUIDE (FRENCH)

GUIDE (DANISH)

Safety Ref.

Pcs Remarks

1

1

1

1

1

25

24

1

1

1

1

1

1

1

No.

78 T6103526560 QUICK SETUP

78 T6103526577 QUICK SETUP

80 T6550038838 SPACER SHEET

81 TZ6103504209 MTG PANEL TOP L 1
82 TZ6103504216 MTG PANEL TOP R 1
83 T6103504223 MTG PANEL BTM L 1
84 T6103504247 MTG PANEL BTM R 1
85 T6103529974 SPACER CUSHION

86 T6103519784 FIXER CABLE 1
87 T4111922503 SCR PAN+SW 4X6 1
88 T4111898907 SCR BIN 4X4 2
89 T6103531670 T-ALUMINUM 2
90 T6103533506 T-ALUMINUM A 2
91 T6103534107 T-ALUMINUM C 1
92 T6550041715 POLY SHEET

93 T6103533940 HEAT CAUTION

94 T6103535043 T-EPOXY 2
95 K2CN3YY00004 CORD POWER-2.0MK 1

T6451038890 LCD PANEL 1
T6520033184 LVDS CABLE 51P

T6103511559 CABLE (K39G-

T6103511467 CABLE (K16A-

T6103520490 CABLE (K38H-

T6103511528 CABLE (K72E-

T9103216158 CABLE (K16C-

T6103511498 CABLE (K72D-

T6103520483 CABLE (K16B-

TH-42LF20E / TH-47LF20E

Part No. Part Name &

Description

GUIDE (SPANISH)

GUIDE (SWEDISH)

C8ZK

BTM A

1700X1300NG

CARD

(LCD PANEL-KLVP)

K19G)

K6A)

JK39H)

K10E)

K6C)

K10D)

K6B)

Pcs Remarks

1

1

2

1

1

1

1

1

1

1

1

1

1

1

51

TH-42LF20E / TH-47LF20E

11.4. Electrical Replacement Boards list (42 inch)

Note: All boards are Non serviceable.

Safety Ref.

15 T6103500829 CIRCUIT BOARD-

37 T6103500836 CIRCUIT BOARD-

41 T6103499710 CIRCUIT BOARD-

42 T6103528403 CIRCUIT BOARD-

43 T6103500812 CIRCUIT BOARD-

63 T6103516394 CIRCUIT BOARD-

Part No. Part Name &

No.

Description

RC+LED

KEY SW

POWER

MAIN

JACK

CONNECTOR

Pcs Remarks

1

1

1

1

1

1

11.5. Electrical Replacement Boards list (47 inch)

Note: All boards are Non serviceable.

Safety Ref.

15 T6103500829 CIRCUIT BOARD-

37 T6103500836 CIRCUIT BOARD-

41 T6103534091 CIRCUIT BOARD-

42 T6103528403 CIRCUIT BOARD-

43 T6103500812 CIRCUIT BOARD-

63 T6103516394 CIRCUIT BOARD-

Part No. Part Name &

No.

Description

RC+LED

KEY SW

POWER

MAIN

JACK

CONNECTOR

Pcs Remarks

1

1

1

1

1

1

11.6. Boards Layout

Ref.No. Board Name Function Remarks

15 RC+LED Remote Receiver, LED
37 KEY SW Control Button

41 POWER

42 MAIN Main, Audio & Video Signal Processor, HDMI in, PC in
43 JACK AV Terminal
63 CONNECTOR Connection board for RC+LED

Power (AC/DC), DC-DC
Non serviceable
P-Board should be exchanged for service.

All boards are Non serviceable.

52