Panasonic TX-L42B6E-S Schematic

ORDER No. PCZ1304117CE

Service Manual

LCD Television

TX-L42B6E

TX-L42B6ES

KM21E Chassis

This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potencial dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products deal within this service information by anyone else could result in serious injury or death.

There are special components used in this equipment which are important for safety. These parts are marked in the Schematic Diagrams, Circuit Board Diagrams, Explorer Views and Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer´s specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of manufacturer.

IMPORTANT SAFETY NOTICE

Warning

and

Safety Precautions





3

General Guide Lines

1. 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.

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

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

4. Always ensure cover label TBM4GU113 is correctly replaced before returning to customer (see Fig.1).

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 Fig. 2.

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 U1 and U2, does not exceed the following values: For a. c.: U1 = 35 V (peak) and U2 = 0.35 V (peak); For d. c.: U1 = 1.0 V,

Note:

The limit value of U2 = 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 mA d. c. The limit value U1 = 35 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 kHz.

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.

COLD WATER PIPE (EARTH GROUND)

TO APPLIANCES EXPOSED METAL PARTS

Resistance values in ohms ()

V: Voltmeter or oscilloscope (r.m.s. or peak reading)

NOTE – Appropriate measures should be taken to obtain the correct value in case of non-sinusoidal waveforms

Measuring network for TOUCH CURRENTS

=1500

R

S

Input resistance: 1M Input capacitance:200pF Frequency range: 15Hz to 1MHz and d.c.respectively

R0=500

Fig. 2

Fig. 1

C

=0.22F

S

10k

U1 (V)

F

0.022

V

U2 (V)

Prevention of Electrostatic Discharge (ESD) to Electrostatically

4

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 build up 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 harmless 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).

There are special components used in this equipment which are important for safety. These parts are marked by in schematic diagrams, exploded views and replacement parts list. It is essential that these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire, or other hazards. Do not modify the original design without permission of manufacturer.

IMPORTANT SAFETY NOTICE

About lead free solder (PbF)

5

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

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 Fig.3)

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. (see Fig.4)

Fig.3

Fig.4

Service Navigation

6

Chassis Board Layout

LD-BOARD

P-BOARD

GK-BOARD

K-BOARD

Board Name Function

A-Board AV Terminal, HDMI, USB, Digital Audio Out, Tuner,CI slot, Headphones, Peaks

P-Board Main Input, Power Supply K-Board Remote Receiver, Power and Timer LED, C.A.T.S

GK-Board Key control, Power switch

LD-Board LED Driver

A-BOARD

IC_sLD8, Speaker out, Flash Memory, DDR SDRAM

Service Hints

7

How to remove the backcover

Remove the 30 fixing screws and the backcover. (see Fig.5)

(1) (1)

(1)

(2)

How to remove the pedestal assembly.

Lay the main unit face down. (see Fig.6)

(1)

(2)

(1) (1)

(4)

(3) (3)

(1)

Fig.5

(2)

(3) (3)

(1)

Remove the 4 fixing screws and the pedestal assembly. (see Fig.7)

(1)

SCREWS

(2)

(1)

(1) THTD030J /16pcs/ (2) XTV3+8GFJK /9pcs/ (3) XYN4+F12FNK /4pcs/ (4) THEC1509 /1pcs/

(1)

SCREWS

(3) XYN4+F12FNK /4pcs/

(3) (3)

Fig.7

Applicable Signals

8

Component (Y, Pb, Pr) (from AV2 terminal), HDMI

525 (480) / 60i,60p * * 625 (576) / 50i, 50p * *

750 (720) / 60p, 50p * * 1,125 (1,080) / 60i, 50i * * 1,125 (1,080) / 60p * 1,125 (1,080) / 50p * 1,125 (1,080) / 24p *

Applicable input signal for PC is basically compatible to HDMI standard timing.

Signal name COMPONENT HDMI

PC (from HDMI terminal)

Signal name Horizontal frequency (kHz) Vertical frequency (Hz)

640  480 @60 Hz 1,280  720 @60 Hz 1,920  1,080 @60Hz

Note:

 Signals other than above may not be displayed properly.  The above signals are reformatted for optimal viewing on your display.  PC signal is magnified or compressed for display, so that it may not be possible to show fine detail

with sufficient clarity.

31.47 60.00

45.00 60.00

67.50 60.00

Specifications

9

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

Rated Power Consumption: 110W

Stand-by Power Consumption: 0.20W

Aerial Impedance: 75 unbalanced, Coaxial Type Receiving System: DVB-T Digital terrestrial services (

DVB-C Digital cable services ( PAL I/H, B/G, SECAM B/G, L/L’ VHF E2-E12 VHF H1-H2 ( ITALY ) VHF A-H ( ITALY ) UHF E21-E69 CATV (S01-S05) CATV S1-S10(M1-M10) CATV S11-S20 (U1-U10) CATV S21-S41 (HYPERBAND) PAL D/K, SECAM D/K VHF R1-R2 VHF R3-R5 VHF R6-R12 UHF E21-E69

PAL 525/60 (AV only) M.NTSC (AV only) NTSC (AV only)

Aerial - Rear:

VHF/UHF

Operating Conditions: Temperature: 0°C  35°C

Humidity: 20%  80% RH (non condensing)

Terminals:

AV1 IN Video (21 pin) 1V p-p 75 Audio (21 pin) 500mV rms 10k RGB (21 pin) 0.7V p-p 75

AV1 OUT Video (21 pin) 1V p-p 75 Audio (21 pin) 500mV rms 1k

AV2 IN Video (RCAx1) 1V p-p 75

(COMPONENT/VIDEO) Audio (RCAx2) 500mV rms 10k (used for HDMI_ AV2 audio IN)

Video (RCAx3) Y:1V p-p 75 (including synchronization) Pb, Pr: ±0.35V p-p 75

HDMI1, HDMI2 Type A Connectors

HDMI

1 : Content Type HDMI 2 : Content Type, Audio Return Channel This TV supports “HDAVI Control 5” function.

DIGITAL AUDIO OUT PCM / Dolby digital / DTS, Fibre optic

USB USB 2.0 DC 5V Max 500mA

CARD SLOT Common interface slot (Complies with CI+) x1 LCD screen: L5EDDYY00473

1920 x 1080, 16:9 Visible Diagonal 1070mm

Audio Output: 20W (2 x 10W) Headphones: 3.5mm, 8 Impedance

MPEG2 and MPEG4-AVC(H.264))

Accessories supplied : Remote Control

10

2 x R6 (UM3) Batteries

Dimensions:

Including TV stand 972mm 645mm 217mm

Mass:

Including TV stand 12.0kg TV set only 10.0kg

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

Width: Height: Depth:

TV set only 972mm 580mm 89mm

This equipment complies with the EMC standards listed below:

EN55013, EN61000-3-2, EN61000-3-3, EN55020, EN55022, EN55024

Technical Description

11

Specification of KEY for CI Plus and MAC General information:

1. NAND FLASH (IC8900) for spare parts has the seed of KEY for each.

2. The final KEY data will be generated by sLD8 IC (IC8000) when SELF CHECK was done and are stored in both sLD8 IC (IC8000) and NAND FLASH (IC8900). All KEYs are not generated for all models. The necessary KEY are only generated and stored depend on the feature of models.

Replacement of ICs:

When sLD8 IC (IC8000) is replaced, NAND FLASH (IC8900) should be also replaced with new one the same time. When NAND FLASH (IC8900) is replaced, sLD8 IC (IC8000) is not necessary to be replaced the same time. After the replacement of IC, SELF CHECK should be done to generate the final KEY data.

How to SELF CHECK: While pressing [VOLUME ( - )] button on the main unit, press the MENU button on the remote

control for more than 3 seconds. TV will be forced to the factory shipment setting after this SELF CHECK.

Model and Keys:

Model No.

TX-L42B6E Yes TX-L42B6ES Yes

Keys

CI PLUS

Setting Inspection

12

Voltage Confirmation

A board

Description Test point Voltage

PANEL12V TP4097 12.1V ± 0.8V SUB3.3V TP5400 3.32V ± 0.165V SUB1.1V TP8101 1.14V ± 0.07V SUB 1.5 V TP8100 1.52V ± 0.05V SUB5V TP5420 5.0V ± 0.25V HDMI3.3V TP8000 3.3V ± 0.16V

P board

Description Test point Voltage* Voltage**

24V (PANEL) TP7407 and GND TP7414 <1V 24V ± 1.2V 16V TP7410 and GND TP7414 <1V 15.7V ± 0.6V 5VS TP7501 and GND TP7414 5.3V ± 0.2V 5.3V ± 0.2V PFC TP7201 and GND TP7203*** <340V 390V ± 15V

* Connect AC 230V to JK7101 connector ** Connect DC 2.5V to TV_SUB_ON P2 connector – pin 8 /TP7416/ from voltage divider.

***Beware, for testing of PFC use the GND (TP7203) in Hot area of P board – risk of electric shock!

Service Mode Function

13

MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be adjusted by remote control in Service Menu

How to enter into Service Mode

While pressing [VOLUME ( - )] button on the main unit, press the [RED] button on the remote control for 3 times within 2 seconds.

How to exit

Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

SERVICE

A

V

14

SERVICE ADJUST WB-ADJ OPTION SRV-TOOL DRV CHECK

Peaks SOFT 3.002 OPTION 1 04 Peaks EEP 01.01.0034 OPTION 2 ee

S e r v i c e 1

LSI PACKAGE 1.918 OPTION 3 01 LSI DATA 0.01.09 OPTION 4 10 STBY SOFT 1.02.02 MODEL ID 0a STBY EEP 1.03.0021 030001d1 STBY ROMCOR 0.00.00 00000200 R/E Cnt 000/000/000 INV Cnt 0000

AVSW --

1

ADJUST DYNAMIC CONTRAST YMAX 35C

1,2:MAIN SELECT 3,4:SUB SELECT 9:PICTURE MENU SELECT YELLOW:AUTO ADJUST VOL :ADJUST OK :WRITE

252

2

ADJUST DYNAMIC

3

COLOR

1,2:MAIN SELECT

4

3,4:SUB SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

1 2

WB-ADJ DYN AMIC R-GAIN

BEFORE 80 METHOD 02

COLOR TEMP NORMAL

1,2:MAIN SELECT 3,4:SUB SELECT 7:COLOR TEMP SELECT 9:PICTURE MENU SELECT 0:WB METHOD SELECT VOL :ADJUST OK :WRITE/WB DIFF ADJ

80

WB-ADJ DYN AMIC G-GAIN

3

BEFORE 7E METHOD 02

COLOR TEMP NORMAL

1,2:MAIN SELECT 3,4:SUB SELECT

4

7:COLOR TEMP SELECT 9:PICTURE MENU SELECT 0:WB METHOD SELECT VOL :ADJUST OK :WRITE/WB DIFF ADJ

1 2

OPTION DYNAMIC Boot

1,2:MAIN SELECT 3,4:SUB SELECT 9:PICTURE MENU SELECT VOL :ADJUST

ROM

OPTION DYNAMIC STBY-SET

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9:PICTURE MENU SELECT OK :POWER OFF

1 2

SRV-TOOL DYNAMIC

1,2:MAIN SELECT 9:PICTURE MENU SELECT OK:ENTER

00

1 2

DRV-CHECK DYNAMIC USBHDD CHECK

1,2:MAIN SELECT 9:PICTURE MENU SELECT OK 3sec:HDD CHK START

00

32

7E

00

216

DJUST DYNAMIC

3

TINT

1,2:MAIN SELECT

4

3,4:SUB SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

WB-ADJ DYN AMIC B-GAIN

3

BEFORE 7A METHOD 02

COLOR TEMP NORMAL

1,2:MAIN SELECT 3,4:SUB SELECT

4

7:COLOR TEMP SELECT 9:PICTURE MENU SELECT 0:WB METHOD SELECT VOL :ADJUST OK :WRITE/WB DIFF ADJ

OPTION DYNAMIC CLK MODE

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK:WRITE

Key Command

 Press the 3/4 button to change the adjustment values or function.  Press the 1/2 button to step up/down through the functions and adjustments  Press the numerical button VOLUME (+/-) to change of each option item.  Press the OK button after each adjustment has been made to store the required values.

7A

00

ADJUST DYNAMIC

3

SUB-BRT

1,2:MAIN SELECT

4

3,4:SUB SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

WB-ADJ DYNAMIC R-CENT

3

BEFORE 90 METHOD 02

COLOR TEMP NORM AL

1,2:MAIN SELECT 3,4:SUB SELECT

4

7:COLOR TEMP SELECT 9:PICTURE MENU SELECT 0:WB METHOD SELECT VOL :ADJUST OK :WRITE/WB DIFF ADJ

OPTION DYNAMIC CLOCK

3

4

1,2:MAIN SELECT 3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST OK:WRITE

800

90

000

DJUST DYNAMIC

3

BACKLGT

1,2:MAIN SELECT

4

3,4:SUB SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

WB-ADJ DYNAMIC G-CENT

3

BEFORE 80 METHOD 02

COLOR TEMP NORMAL

1,2:MAIN SELECT 3,4:SUB SELECT

4

7:COLOR TEMP SELECT 9:PICTURE MENU SELECT 0:WB METHOD SELECT VOL :ADJUST OK :WRITE/WB DIFF ADJ

OPTION DYNAMIC

3

Emergency

4

1,2:MAIN SELECT 3,4:SUB SELECT 9 :PICTURE MENU SELECT VOL:ADJUST

FFF

80

ON

DJUST DYNAMIC

H-POS

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

WB-ADJ DYNAMIC B-CENT

3

BEFORE 8C METHOD 02

COLOR TEMP NORMAL

1,2:MAIN SELECT 3,4:SUB SELECT

4

7:COLOR TEMP SELECT 9:PICTURE MENU SELECT 0:WB METHOD SELECT VOL :ADJUST OK :WRITE/WB DIFF ADJ

OPTION DYNAMIC Y/C Delay

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

8C

0

DJUST DYNAMIC

0

H-AMP

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK:WRITE

OPTION DYNAMIC OPT 1

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 5,6:BIT SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

0

00000100

ADJUST DYNAMIC V-POS

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

OPTION DYNAMIC OPT 2

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 5,6:BIT SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

OPTION DYNAMIC EDID-CLK

HDMI 1

1,2:MAIN SELECT 3,4:SUB SELECT 7 :HDMI SELECT 9 :PICTURE MENU SELECT OK:WRITE

11101110

HIGH

DJUST DYNAMIC

0

V-AMP

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

4

DJUST DYNAMIC

VCOM BEFORE 00

1,2:MAIN SELECT 3,4:SUB SELECT 5 :FLICKER PATTERN 9 :PICTURE MENU SELECT OK :WRITE

OL :ADJUST

OPTION DYNAMIC OPT 3

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 5,6:BIT SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

4

OPTION DYNAMIC OPT 4

3

1,2:MAIN SELECT

4

3,4:SUB SELECT 5,6:BIT SELECT 9:PICTURE MENU SELECT VOL :ADJUST OK :WRITE

0

3

000

00000001

3

00010000

Service Tool Mode

15

How to access

1. Select [SRV-TOOL] in Service Mode.

2. Press [OK] button on the remote control.

Display of TD2Microcode version

Display of Flash ROM maker code Display of SOS History

SRV-TOOL

TD2Microcode:005a0910 Flash ROOM: AD – F1 PTCT:00.00.00.00.00 Time 00051:30 On/Off 0000042

Display of SOS History

SOS History (Number of LED blinking) indication. From left side; Last SOS, before Last, three occurrence before, 2 This indication will be cleared by [Self/check indication and forced to factory shipment setting].

nd

occurrence after shipment, 1st occurrence after shipment.

Power ON Time, On/Off

Note: To display TIME/COUNT menu, highlight position, then press MUTE for 3sec. Time: Cumulative power on time, indicated hour: minute by decimal. On/Off: Number of On/Off switching by decimal. Note: This indication will not be cleared by either of the self-checks or any other command.

Exit

Disconnect the AC cord from wall outlet or switch off the power with [Power] button on the main unit.

POWER ON TIME/COUNT Press [MUTE] button (3sec)

Hotel Mode

16

1. Purpose Restrict a function for hotels.

2. Access command to the Hotel mode setup menu. In order to display the Hotel mode setup menu, please enter the following command (within 2 second). [TV] : Vol.[Down] + [REMOTE] : AV (3 times)

Then, the Hotel mode setup menu is displayed.

Hotel mode

Initial INPUT

Initial POS

Off

Initial VOL Level

Maximum VOL Level

Button Lock

Remote Lock

Off

100

Off

Select

OK

RETURN

3. To exit the “Hotel mode”: Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

4. Explain the Hotel mode setup menu.

ITEM Function

Hotel Mode Select hotel mode ON/OFF

Initial INPUT Select input signal modes.

Initial POS Select programme number.

Initial VOL Level Adjust the volume when each time power is

Maximum VOL Level

Button Lock Select local key conditions.

Remote Lock Select remote control key conditions.

Set the input, when each time power is switched on. Selection: Off/Analog/DVB-T/DVB-C/AV1/AV2/HDMI1/HDMI2 *Off: give priority to the last memory. However, Euro Model is compulsorily set to TV.

Selection: Off/0 to 99 *Off: give priority to the last memory

switched on. Selection/Range: Off/0 to 100 *Off: give priority to the last memory Adjust maximum volume. Range: 0 to 100

Selection: Off/SETUP/MENU/ALL *Off: altogether valid *Setup: only F-key is invalid

(Tuning guide (menu) can not be selected.)

*MENU: only F-key is invalid

(only Volume/Mute can be selected.)

*All: altogether invalid.

Selected” Off/SETUP/MENU *Off: altogether valid *Setup: only Setup menu is invalid MENU: Picture/Sound/Setup menu are invalid

Data Copy by USB Memory

17

Purpose a) Board replacement (Copy the data when exchanging A-board):

When exchanging A-board, the data in original A-board can be copied to USB Memory and then copy to new A-board.

TV

A-board

(Before exchanging)

Copy to USB Memory

Memory

(After exchanging)

Copy back from USB Memory

USB

Following data can be copied. User setting data (inc. Hotel mode setting data) Channel scan data Adjustment and factory preset data

b) Hotel (Copy the data when installing a number of units in hotel or any facility):

When installing a number of units in hotel or any facility, the data in master TV can be copied to USB Memory and the copy to other TVs.

Master TV

Copy to USB Memory

USB

Memory

Other TV

Copy from USB Memory

Other TV

Following data can be copied. User setting data (inc. Hotel mode setting data) Channel scan data

Preparation

Make pwd file as startup file for (a) or (b) in an empty USB Memory.

1. Insert an empty USB Memory to your PC.

2. Right-click a blank area in a USB Memory window, point to New, and then click text document. A new file is created by default (New Text Document.txt).

3. Right-click the new text document that you just created and select rename, and then change the name and extension of the file to the following file name (a) or (b) and press ENTER.

File name:

(a) For Board replacement: boardreplace.pwd (b) For Hotel: hotel.pwd

Note: Please make only one file to prevent the operation error. No any other file should be in USB Memory.

Data Copy from TV set to USB Memory

18

1. Turn on the TV set.

2. Insert USB Memory with a startup file (pwd file) to USB Terminal. On-screen Display will be appeared according to the startup file automatically.

3. Input a following password for (a) or (b) by using remote control.

(a) For Board replacement: 2770

(b) For Hotel: 4850 Data will be copied from TV set to USB Memory. It takes around 2 to 6 minutes maximum for copying.

4. After the completion of copying to USB Memory, remove USB Memory from TV set.

5. Turn off the TV set.

Note: Following new folder will be created in USB Memory for data from TV set.

(a) For Board replacement: user_setup (b) For Hotel: hotel

Please do not remove the Media

Data copy has been successful

Data Copy(Board replacement )

Input password

Data Copy(Board replacement )

Input password

Data Copy(Board replacement )

Copy TV to Media

Please wait for a while

Data Copy(Board replacement )

Performing

Please remove Media

Data copy (Board replacement) or (Hotel)

-----

Input Password

2770 or 4850

-----

Performing

GETTING

Completion

FINISH

Data Copy from USB Memory to TV set

19

1. Turn on the TV set.

2. Insert USB Memory with Data to USB Terminal. On-screen Display will be appeared according to the Data folder automatically.

3. Input a following password for (a) or (b) by using remote control.

(a) For Board replacement: 2771 (b) For Hotel: 4851

Data will be copied from USB Memory to TV set.

4. After the completion of copying to USB Memory, remove USB Memory from TV set.

(a) For Board replacement: Data will be deleted after copying (Limited one copy). (b) For Hotel: Data will not be deleted and can be used for other TVs.

5. Turn off the TV set.

Note:

1. Depending on the failure of boards, function of Data for board replacement does not work.

2. This function can be effective among the same model numbers.

Data Copy(Board replacement )

Input Password

Input password

Performing

Data Copy(Board replacement )

Copy Media to TV

Please wait for a while

Please do not remove the Media

Data Copy(Board replacement )

Performing

Data copy has been successful

Please turn off the TV for system

initializing

Input Password

2771 or 4851

-----

Performing

WRITING

Completion

FINISH

Option Bytes Description

20

OPTION1

b1 TEXT Ch Refresh ON (1) / OFF (0) b2 ID-1 ON (1) / OFF (0) b3 Macrovision Auto-judge ON (1) / OFF (0) b4 “BassBoost” sound menu enable ON (1) / OFF (0) b5 “Digital Remaster” sound menu enable ON (1) / OFF (0) b6 Enable HDMI force reset ON (1) / OFF (0) b7 TINT_Component_HDMI ON (1) / OFF (0)

OPTION2

b0 Adjust gain enable ON (1) / OFF (0) b1 A2 BG enable (5.5MHz) ON (1) / OFF (0) b2 A2 DK1 enable (6.26MHz) ON (1) / OFF (0) b3 A2 DK3 enable (5.742MHz) ON (1) / OFF (0) b4 NICAM scan ON (1) / OFF (0) b5 NICAM BG enable (5.5MHz) ON (1) / OFF (0) b6 NICAM I enable (6.0MHz) ON (1) / OFF (0) b7 NICAM DK enable (6.5MHz) ON (1) / OFF (0)

OPTION3

b0 NICAM priority ON (1) / OFF (0) b1 Starhub scan enable (Singapore) ON (1) / OFF (0)

Enable special edge smoother function

b2

(CHINA)

b3 A2 DK2 enable ON (1) / OFF (0)

Inhibition of countermeasure

b4

for SIF signal drop b5 Get onid from physical CH (CHINA) ON (1) / OFF (0) b6 SSU search enable for HOTEL model ON (1) / OFF (0) b7 SASO mute (ASIA) ON (1) / OFF (0)

OPTION4 b2 3DYC color motion detect ON (1) / OFF (0) b3 RF Clamp Current minimum (TAIWAN) ON (1) / OFF (0) b4 SHOP banner enable ON (1) / OFF (0)

b6 PIP ON (1) / OFF (0)

Enable LGD panel problem soft b5

countermeasure

Enable workaround for Polsat CAM b7

problem (POLAND)

ON (1) / OFF (0)

ON (0) / OFF (1)

ON (1) / OFF (0)

Self Check

p

21

How to access

Self-check indication only: While pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control.

Self-check indication and forced to factory shipment setting: While pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.

How to exit

Switch off the power with the [POWER] button on the main unit.

TX-L42B6E TX-L42B6ES

42FHD

Self Check Com

H14TUN O.K. H90STBY O.K. H91MEM2 O.K. H96ID O.K.

PEAKS-SOFT 3.002 PEAKS-EEP 01.01.0034 LSI-PACKAGE 1.918 LSI-RELEASE 0.19 STBY-SOFT 1.02.02 STBY-EEP 1.03.0021

lete

MODEL ID 0A 030001d1 00000200

Display Ref. No. Description P.C.B. H14TUN TU6705 TUNER A-Board H90STBY IC8000 IC Peaks-sLD8 A-Board H91MEM2 IC8900 Flash Memory A-Board H96ID IC8900 CI+ A-Board

If the CCU ports have been checked and found to be incorrect or not located then " - - " will appear in place of "O.K.".

Power LED blinking timing chart

22

1. Subject Information of LED Flashing timing chart.

2. Contents When abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by number of blinking of the Power LED on the front panel of the unit.

Blinking

times

Once

1 BL_SOS

3

7

8

Blinking timing Contents Check point

4 sec

Light

No Light

IROM SOS

SUB3.3V/1.2V

SOS

A BOARD

PANEL

A BOARD

PANEL

9

12

13

SOUND_SOS

BE_SOS A BOARD

EMERGENCY A BOARD

A BOARD

LCD Panel Test Mode

Purpose:

To find the possible failure point where in LCD Panel or Printed Circuit Board when the abnormal picture is displayed.

How to Enter:

While pressing [VOLUME ( - )] button of the main unit, press [YELLOW] button of the remote control three times.

How to Exit:

Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

How to confirm:

If the abnormal picture is displayed, go into LCD Panel test mode to display the several test patterns. And then, judge by the following method. Still abnormal picture is displayed: The cause must be in LCD Panel. Normal picture is displayed: The cause must be in A board.

Remarks:

The test pattern is created by the circuit in LCD Panel. In LCD Panel test mode, this test pattern is displayed unaffected by signal processing for RF or input signal. If the normal picture is displayed, LCD Panel must be okay and the cause of failure must be in A board.

Adjustment Method

23

White Balance Adjustment

Instrument Name Connect to Remarks

1. Remote controller

2. LCD WB meter (Minolta CA-210 or equivalent)

3. Comunication jig

4. Computer for external control

Procedure Remarks

White Balance adjustment

1. Procedure basically performs checking using the production software and make automatic adjustment using external computer.

2. It adjusts in the mode of: Colour balance Normal

Viewing Mode Dynamic

Normal Highlight x: 0.292  0.010 y: 0.304  0.010

Normal Lowlight x: 0.292  0.010 y: 0.304  0.010

Correlation can be also taken by CS-1000A or equivalent

Let the panel standfor more than 3 hours at more than 20 C. Basically perform adjustment in the ambient environment of room temperature more than 20 C. The aging time is more than 20 min at above room temperature.

Applied signal

100% full colour bar

0.7V p-p white peak 85% modulation

100% WHITE

50% GRAY

Panasonic TX-L42B6E-S Schematic

CONTENTS

Safety Precautions

Service Navigation

Chassis Board Layout

Service Hints

Applicable Signals

Specifications

Technical Description

Setting Inspection

Service Mode Function

SERVICE

Service Tool Mode

Hotel Mode

Data Copy by USB Memory

Data Copy from TV set to USB Memory

Data Copy from USB Memory to TV set

Option Bytes Description

Self Check

Power LED blinking timing chart

LCD Panel Test Mode

Adjustment Method