Panasonic TX-LR50B6 Bedienungsanleitung

ORDER NO. MTV1301138CE

LCD TV

Model No. TX-LR50B6

Chassis: KM21E

Destination: CIS

TABLE OF CONTENTS

PAGE PAGE

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

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

1.1.1. Leakage Current Cold Check---------------------- 3

1.1.2. Leakage Current Hot Check (See Figure

1.) --------------------------------------------------------- 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. Service Hint ------------------------------------------------- 6

4 Specifications ----------------------------------------------------- 7

5 Service Mode ------------------------------------------------------ 8

5.1. How to enter into Service Modes ---------------------- 8

5.1.1. Contents of adjustment mode --------------------- 8

5.1.2. How to exit---------------------------------------------- 8

5.1.3. Display of SOS History ------------------------------ 9

5.1.4. POWER ON TIME/COUNT ------------------------ 9

5.1.5. Exit-------------------------------------------------------- 9

5.1.6. Self Check Mode-------------------------------------10

5.1.7. Hotel Mode Adjustment---------------------------- 10

5.1.8. Hotel Mode-------------------------------------------- 10

6 Troubleshooting Guide --------------------------------------- 11

6.1. Check of the IIC bus lines------------------------------ 11

6.1.1. How to access --------------------------------------- 11

6.1.2. Exit ------------------------------------------------------ 11

6.2. Power LED Blinking timing chart --------------------- 12

6.3. No Power--------------------------------------------------- 12

7 Disassembly and Assembly Instructions--------------- 13

7.1. Speaker Bracket ----------------------------------------- 13

7.2. LCD Panel Assembly ----------------------------------- 14

7.3. LCD Panel Fixing & Handling Method -------------- 15

7.4. LED Panel and Bracket Ass’y------------------------- 16

7.5. Vesa Metal ------------------------------------------------- 18

7.6. Side Metal Bracket--------------------------------------- 19

7.7. Metal Bracket 1 ------------------------------------------- 20

7.8. Metal Bracket 2 ------------------------------------------- 21

7.9. Metal Bracket Bottom ---------------------------------- 22

7.10. PCB Installation ------------------------------------------ 23

7.11. Pedestal Ass’y 1------------------------------------------ 24

TX-LR50B6

7.12. Pedestal Ass’y 2------------------------------------------ 25

7.13. Stand MTG Assy ----------------------------------------- 25

7.14. Back Cover Installation --------------------------------- 27

7.15. Handling SPEC ------------------------------------------- 28

8 Measurements and Adjustments -------------------------- 29

8.1. Voltage chart of A-board-------------------------------- 29

8.2. Voltage chart of P-board-------------------------------- 29

9 Block Diagram --------------------------------------------------- 30

9.1. Main Block Diagram ------------------------------------- 30

10 Wiring Connection Diagram --------------------------------- 31

10.1. Wire Dressing 1------------------------------------------- 31

10.2. Wire Dressing 2------------------------------------------- 32

11 Schematic Diagram--------------------------------------------- 33

12 Printed Circuit Board ------------------------------------------ 58

13 Exploded View and Replacement Parts List ----------- 65

13.1. Exploded View and Mechanical Replacement

Parts List --------------------------------------------------- 65

TX-LR50B6

1 Safety Precautions

1.1. General Guidelines

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 leakage current checks to prevent the customer from being exposed to shock hazards.

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

5. 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.

6. When conducting repairs and servicing, do not twist the Faston connectors but plug them straight in or unplug them straight

out.

1.1.1. Leakage Current Cold Check

1. Unplug the AC cord and connect a jumper between the

two prongs on the plug.

2. Measure the resistance value, with an ohmmeter,

between the jumpered AC plug and each exposed

metallic cabinet part on the equipment such as

screwheads, connectors, control shafts, etc. When the

exposed metallic part has a return path to the chassis, the

reading should be 100 Mohm and over.

When the exposed metal does not have a return path to

the chassis, the reading must be .

1.1.2. Leakage Current Hot Check (See

Figure 1.)

1. Plug the AC cord directly into the AC outlet. Do not use

an isolation transformer for this check.

2. Connect a 1.5kohm, 10 watts resistor, in parallel with a

0.15F capacitors, 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 an AC voltmeter, with 1000 ohms/volt or more

sensitivity, to measure the potential across the resistor.

4. Check each exposed metallic part, and measure the

voltage at each point.

5. Reverse the AC plug in the AC outlet and repeat each of

the above measurements.

6. The potential at any point should not exceed 0.75 volts

RMS. A leakage current tester (Simpson Model 229 or

equivalent) may be used to make the hot checks, leakage

current must not exceed 1/2 milliamp. In case a

measurement is outside 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.

Figure 1

TX-LR50B6

2Warning

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).

TX-LR50B6

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)

TX-LR50B6

3 Service Navigation

3.1. Service Hint

Board Name Main Device Remarks

A BOARD TUN, OFDM, ADV, LD4, STBY EEP Repairable

P BOARD Power Supply (For 32” include function SW) Repairable

GK BOARD Function SW Repairable

K BOARD LED/RM/CATS Repairable

LD BOARD LED DRIVER Repairable

TX-LR50B6

4 Specifications

Note

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

Power source AC 220-240 V, 50/60 Hz

Rated power consumption 136 W

Standby power consumption*1 0.2 W

Panel LED LCD panel

Visible screen size (diagonal) 126 cm (50 inches)

Display Resolution 2,073,600 (1,920 (W) 1,080 (H))

Sound

Speaker (100 mm 30 mm) 2 pcs, 8 

Audio output 20 W (10 W + 10 W), 10% THD

Headphone M3 (3.5 mm) stereo mini Jack 1

Receiving systems / Band name

Check the latest information on the available services at the following website. (English only)

http://panasonic.net/viera/support

DVB-C Digital cable services (MPEG2 and MPEG4-AVC(H.264))

DVB-T / T2 Digital terrestrial services (MPEG2 and MPEG4-AVC(H.264))

PAL D, K VHF R1 - R2 VHF R3 - R5 VHF R6 - R12 UHF E21 - E69

SECAM D, K

PAL 525/60 Playback of NTSC tape from some PAL Video recorders (VCR)

M.NTSC Playback from M.NTSC Video recorders (VCR)

NTSC (AV input only) Playback from NTSC Video recorders (VCR)

Aerial input VHF / UHF

Operating Conditions Temperature : 0C - 35C

Humidity : 20% - 80% RH (non-condensing)

Dimensions (W H D)

With Pedestal (mm) 1,139 739 275

TV only (mm) 1,139 674 89

Mass (Net)

With Pedestal ( ) 18

TV only ( ) 15

Connection Terminals

AV1 SCART (Audio/Video in, Audio/Video out, RGB in)

AUDIO L - R RCA PIN Type 20.5V[rms]

VIDEO RCA PIN Type 1 1.0 V[p-p] (75 )

COMPONENT Y 1.0 V[p-p] (including synchronization)

PB/CB, PR/CR±0.35 V[p-p]

DIGITAL AUDIO PCM / Dolby Digital / DTS, Fibre optic

HDMI AV IN TYPE A Connectors 2

Card slot Common Interface slot (complies with CI Plus) 1

USB USB 2.0

DC 5 V, Max. 500 mA

*1 When the TV is turned off with the remote control and no function is active.

TX-LR50B6

5 Service Mode

5.1. How to enter into Service Modes

While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds.

5.1.1. Contents of adjustment mode

• Value is shown as a hexadecimal number.

• Preset value differs depending on models.

• After entering the adjustment mode, take note of the value in each item before starting adjustment.

5.1.2. How to exit

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

Main item Sub item Sample Data

ADJUST CONTRAST

COLOUR

TINT

SUB-BRT

BACKLGT

H POS

H AMP

V POS

V AMP

A COM

WB-ADJ R-GAIN 8D

G-GAIN AE

B-GAIN FF

R-CENT 6C

G-RENT 80

B-CENT A0

OPTION Boot ROM

STBY-SET 00

EMERGENCY ON

CLK MODE 00

CLOCK FC7

Y/C DELAY DYNAMIC

OPT 1 00000000

OPT 2 11100110

OPT 3 00001001

OPT 4 00000000

EDID-CLK HIGH

SRV-TOOL 00

DRV CHECK DYNAMIC

TX-LR50B6

5.1.3. Display of SOS History

SOS History (Number of LED blinking) indication.

From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.

This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory

shipment setting].

5.1.4. POWER ON TIME/COUNT

Note : To display TIME/COUNT menu, highlight position, then press MUTE for 3sec.

Time : Cumulative power on time, indicated hour : minute by decimal

Count : Number of ON times by decimal

Note : This indication will not be cleared by either of the self-checks or any other command.

5.1.5. Exit

1. Disconnect the AC cord from wall outlet.

TX-LR50B6

5.1.6. Self Check Mode

1. Press the ‘MENU’ button (on the remote control) and the ‘VOL DOWN’ button on the LCD panel.

2. Press ON/OFF button on the panel to Exit.

NOTE: After self check, the following process need to follow.

5.1.7. Hotel Mode Adjustment

1. Press the ‘VOLUME DOWN’ button on the TV panel and simultaneously press the INPUT button on the remote control 3

times to enter Hotel Mode.

2. Set Hotel mode ‘on/off’, then press ‘EXIT’ to come out.

5.1.8. Hotel Mode

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] : INPUT (3 times).

Then, the Hotel mode setup menu is displayed.

3. To exit the Hotel mode setup menu

Disconnect AC power cord from wall outlet.

4. Explain the Hotel mode setup menu

Item Function

Mode Select hotel mode off/on

Initial Input Select input signal modes.

Set the input, when each time power is switched

on.

Selection :

-/RF/HDMI1/HDMI2/HDMI3/Component/

Video/PC

• Off: give priority to a last memory.

Initial POS Select channel when input signal is RF.

Set the channel, each time power is switched

on.

Selection :

Any channel number or [-].

[-] means the channel when turns off.

Initial LEVEL Adjust the volume when each time power is

switched on.

Range :

0 to 100

Maximum Vol

LEVEL

Adjust maximum volume.

Range :

0 to 100

Button Lock Restrict the OSD.

Selection :

OFF/PATTERN1

• OFF: No restriction

• PATTERN1: restriction

Remote Lock Select front key conditions.

Selection :

OFF/PATTERN1/ALL

• OFF: altogether valid.

• PATTERN1: only input key is valid.

• ALL: altogether invalid.

Andere Handbücher für TX-LR50B6

Inhaltsverzeichnis

Andere Panasonic LCD-Fernseher Handbücher

Panasonic

Panasonic TX-26LX80L Bedienungsanleitung

Panasonic

Panasonic VIERA TX-32AS500B Bedienungsanleitung

Panasonic

Panasonic VIERA TC-L32X30 Bedienungsanleitung

Panasonic

Panasonic TH-L42U30R Bedienungsanleitung

Panasonic

Panasonic VIERA TC-L37E3 Bedienungsanleitung

Panasonic

Panasonic VIERA TC-L39EM60 Bedienungsanleitung

Panasonic

Panasonic TC-32LX85 Operating Manual (English Bedienungsanleitung

Panasonic

Panasonic TX-L50EM6E Bedienungsanleitung

Panasonic

Panasonic Viera TX-L32C20B Bedienungsanleitung

Panasonic

Panasonic TX-26LXD52 Bedienungsanleitung

Panasonic

Panasonic TC15LT1 - 15"WIDE LCD TV Bedienungsanleitung

Panasonic

Panasonic Viera TX-39AS650E Bedienungsanleitung

Panasonic

Panasonic Viera TX-32AS600B Bedienungsanleitung

Panasonic

Panasonic Viera TX-L19XM6B Bedienungsanleitung

Panasonic

Panasonic Viera TX-L32E30B Bedienungsanleitung

Panasonic

Panasonic viera TH-L37U30M Bedienungsanleitung

Panasonic

Panasonic TCL22X2 - 22" LCD TV Bedienungsanleitung

Panasonic

Panasonic TH-L32D20A Bedienungsanleitung

Panasonic

Panasonic tx-32cs510e Bedienungsanleitung

Panasonic

Panasonic TC-32LX14 - 31.5" LCD TV Bedienungsanleitung

Panasonic

Panasonic Viera TC-L32X5X Bedienungsanleitung

Panasonic

Panasonic VIERA TH-L32C30A Bedienungsanleitung

Panasonic

Panasonic TH32LRU50 Bedienungsanleitung

Panasonic

Panasonic Viera TX-L32E5B Bedienungsanleitung

Beliebte LCD-Fernseher Handbücher anderer Marken

LG 32LC4R* Bedienungsanleitung

ViewSonic

ViewSonic N4200w-1 VS10945-1M Bedienungsanleitung

Salora

Salora 22LED1600 Bedienungsanleitung

Samsung

Samsung LA32E420 Leitfaden

Dell

Dell W1900 19 Gebrauchsanweisung

Samsung

Samsung LN40C670M1F Bedienungsanleitung

Samsung

Samsung Series 4+ Bedienungsanleitung

Samsung

Samsung 5 Series Bedienungsanleitung

Grundig

Grundig 40 VLE 8230 BP Bedienungsanleitung

Philips

Philips 43PFL4901/F7 Bedienungsanleitung

Sony

Sony Bravia XBR-43X830C Bedienungsanleitung

LG 32LS350 Bedienungsanleitung

VIORE

VIORE LED32VF60 Bedienungsanleitung

Toshiba

Toshiba Regza 42HL167 Bedienungsanleitung

JVC

JVC LT-32A220 Bedienungsanleitung

Philips

Philips 20TA1000/93 Bedienungsanleitung

Philips

Philips 32PFL3158T/12 Bedienungsanleitung

Sony

Sony Bravia KDL-V32XBR2 Bedienungsanleitung