Panasonic TX-32LXD50 Bedienungsanleitung

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TX-32LXD50

TX-26LXD50

TX-32LX50F

TX-32LX50P

TX-26LX50F

TX-26LX50P

LH41 Chassis

Wide LCD TV

Specifications

Powe

Source

C 220 - 240 V, 50

60 Hz

Powe

Consumption

verage use : 133 W (0.78 A) (TX-26LXD50)

verage use : 169 W (0.98 A) (TX-32LXD50)

Standb

condition :

0.1 W (Without DVB Time

programmes)

11W (With DVB Time

programmes)

verage use : 126 W (TX-26LX50F/P)

verage use : 161 W (TX-32LX50F/P)

Standb

condition : 0.4 W

LCD Wide XGA (1,366 × 768 pixels)

16 : 9 aspe

t ratio LCD panel

Screen Size 575.8 mm (W) × 323.7 mm (H) (TX-26LXD50, TX-26LX50F/P)

697.7 mm (W) × 392.3 mm (H) (TX-32LXD50,TX-32LX50F/P)

Sound

Speake

Woofe

Ø8 cm × 2 pcs, Full range Ø5 cm ×2pcs

Audio Output 20 W (5.4 W + 5.4 W, 4.6 W + 4.6 W )

Headphones M3 (3.5 mm) Jack × 1

Scanning format 480i(60Hz), 480p(60Hz), 576i(50Hz), 576p(50Hz), 720p(50Hz), 1080i(50Hz)

Receiving Systems

PAL I (TX-26L

D50/32LXD50) UHF E21-68.

Band name DVB (TX-26L

D50/32LXD50) Digital terrestrial services via UHF aerial input.

PAL B, G, H, SEC

M B, G SEC

L’ (TX-26LX50F/P, TX-32L

50F/P)

VHF E2 - E12 VHF H1 - H2 (ITALY)

VHF A - H (ITALY) UHF E21 - E69

CATV (S01 - S05) CATV S1 - S10 (M1 - M10)

ORDERNO.PCZ0503030C2

All manuals and user guides at all-guides.com

all-guides.com

1 Safety Precautions 4

1.1. General Guidelines 4

1.2. Touch-Current Check 4

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices 5

3 Applicable signals 5

4 Self Check Function 6

4.1. Self Check 6

4.2. Power LED Blinking timing chart 7

5 Chassis Board Layout 8

6 Before servicing 9

6.1. Kind and location of the flexible cable and bridge cable 9

6.2. How to remove the connector 10

6.3. Wire dressing 1 11

6.4. Wire dressing 2 12

7 Servicing method 13

7.1. Removing the stand assｴy 13

7.2. Removing the rear cover 13

7.3. Removing the speaker box L and R 13

7.4. Removing the rear AV bracket 14

7.5. Removing the rear metal frame 14

7.6. Removing the P-Board 14

7.7. Removing the XV-Board (For LXD50 model only) 14

7.8. Removing the DG-Board 15

7.9. Removing the AP-Board 15

7.10. Removing the H-Board 15

7.11. Removing G-Board bracket 15

7.12. Removing the G-Board 16

CATV S11 - S20 (U1 - U10) CATV S21 - S41 (Hyperband)

PAL D, K, SEC

MD,

(TX-26LX50F/P, TX-32L

50F/P)

VHF R1 - R2 VHF R3 - R5

VHF R6 - R12 UHF E21 - E69

PAL 525/60 Playback of NTSC tape from some PAL Video re cord

ers (VCR)

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

NTSC (A

input only) Playback from NTSC Video recorders (VCR)

Aerial - Rea

UHF (TX-26/32LXD50) UHF/VHF (TX-26/32LX50F

Operating Conditions Temperatu

e:5°C-35°C

Humidit

: 5 % - 90 % RH (non-condensing)

Connection Terminals

AV1 (Sca

t connecter) 21 Pin terminal (Audio

Video in, Audio

Video out, RGB in)

AV2 (Sca

t connecter) 21 Pin terminal (Audio

Video in, Audio

Video out, S-Video in, Q-Link)

AV3

IDEO RCA PIN Type × 1

S-

IDEO Mini DIN 4-pin

AUDIO L - R RCA PIN Type × 2

(Sca

t connecter) 21 Pin terminal (Audio

Video in, Audio

Video out, RGB in, S-Video in, Q-Link)

COMPONENT

IDEO Y, P B, PR

AUDIO L - R RCA PIN Type × 2

Output

AUDIO L - R RCA PIN Type × 2

Dimensions ( W × H × D )

Including TV Stand 663 mm × 556 mm × 299.5 mm (TX-26LXD50, TX-26LX50F/P)

795 mm × 634.7 mm × 299.5 mm (TX-32LXD50, TX-32LX50F/P)

TV Set Only 663 mm × 494.3 mm × 140.7 mm (TX-26LXD50, TX-26LX50F/P)

795 mm × 573 mm × 140.7 mm (TX-32LXD50, TX-32LX50F/P)

Mass (Weight) 18 kg Net (TX-26LXD50, TX-26LX50F/P)

21 kg Net (TX-32LXD50, TX-32LX50F/P)

CONTENTS

Page Page

TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P

All manuals and user guides at all-guides.com

7.13. Removing the K-Board 16

7.14. Removing the V-Board 16

7.15. Removing the main chassis 16

7.16. Removing the LCD panel 17

8 Service Mode Function 18

8.1. How to enter SERVICE 1 18

8.2. How to enter SERVICE 2 18

8.3. Option Description 21

8.4. Option Code Setting 23

9 Adjustment method 24

9.1. White Balance Adjustment 24

10 Block Diagram 25

10.1. Signal (1/3) Block Diagram 25

10.2. Signal (2/3) Block Diagram 26

10.3. Signal (3/3) Block Diagram 27

10.4. Power (1/3) Block Diagram 28

10.5. Power (2/3) Block Diagram 29

10.6. Power (3/3) Block Diagram 30

11 Schematic Diagram 31

11.1. Schematic Diagram Notes 31

11.2. AP-Board (1/2) and K-Board Schematic Diagram 32

11.3. AP-Board (2/2) Schematic Diagram 33

11.4. XV-Board (1/5) Schematic Diagram 34

11.5. XV-Board (2/5) Schematic Diagram 35

11.6. XV-Board (3/5) Schematic Diagram 36

11.7. XV-Board (4/5) Schematic Diagram 37

11.8. XV-Board (5/5) Schematic Diagram 38

11.9. H-Board (1/3) Schematic DIagram 39

11.10. H-Board (2/3) Schematic Diagram 40

11.11. H-Board (3/3) Schematic Diagram 41

11.12. DG-Board (1/6) Schematic Diagram 42

11.13. DG-Board (2/6) Schematic Diagram 43

11.14. DG-Board (3/6) Schematic Diagram 44

11.15. DG-Board (4/6) Schematic Diagram 45

11.16. DG-Board (5/6) Schematic Diagram 46

11.17. DG-Board (6/6) Schematic Diagram 47

11.18. G-Board and V-Board Schematic Diagram 48

12 Printed Circuit Board 49

12.1. AP-Board 49

12.2. XV-Board (TX-26/32LXD50 only) 51

12.3. H-Board 53

12.4. DG-Board 56

12.5. G-Board 59

12.6. K-Board and V-Board 60

13 Exploded View and Replacement Parts List. 61

13.1. Set Layout 61

13.2. Front Chassis Layout 62

13.3. Packing Exploded View 63

13.4. Mechanical Replacement Parts List 64

14 Electrical Replacement Parts List 66

14.1. Electrical Replacement Parts List Notes 66

14.2. Electrical Replacement Parts List (TX-32/26LXD50) 67

14.3. Electrical Replacement Parts List (TX-32/26LX50F/P) 85

TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P

All manuals and user guides at all-guides.com

1.2. Touch-Current Check

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.

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 (TOUGH CURRENT) expressed as voltage U1and 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.

Figure 1

TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P

All manuals and user guides at all-guides.com

2 Prevention of Electro Static 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 electro static 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 alminum

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, alminum 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 hamless 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).

3 Applicable signals

Applicable input signal for Component (Y, PB,P

Note:

Signals without above specification may not be displayed properly.

TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P

All manuals and user guides at all-guides.com

4 Self Check Function

4.1. Self Check

1. Self-Check is used to automatically check the bus lines and hexadecimal code of the TV set.

2. To get into the Self -Check mode press the Down () button on the customer controls at the front of the set, at the same

time pressing the Status/Information ( )button on the remote control, and the screen will show :

3. Turn off the TV to reset JPEG Viewer circuit after SELF-CHECK.

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

Display Ref. No. Description P.C.B.

MEM IC1107 Memory DG-Board

GC4P IC4054 Global Core DG-Board

GC4L IC4057 Global Core DG-Board

HAD IC4012 OSD RGB A/D Converter DG-Board

AVSW1 IC3005 AV Switch VIDEO H-Board

AVSW2 IC2105 AV Switch AUDIO H-Board

Tun1 TU3201 Tuner H-Board

DAC1 IC1106 DAC control 1 DG-Board

DAC3 IC3006 DAC control 3 H-Board

MSP IC2106 Stereo Decoder H-Board

IPC IC8013 HDSL PEAKS Lite XV-Board

ADV IC4005 A/D Converter DG-Board

TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P

All manuals and user guides at all-guides.com

all-guides.com

4.2. Power LED Blinking timing chart

1. Subject

Information of LED Flashing timing chart.

2. Contents

When an abonormality 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 the number of blinking of the Power LED on the front panel of the unit.

TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P

All manuals and user guides at all-guides.com

5 Chassis Board Layout

Board Name Function

AP-Board Regulator

DG-Board Global Core, A/D Converter, MCU

H-Board AV connector, TV Tuner, AV Switch

K-Board Power Switch

G-Board Front AV & HP connector, Key Switch

P-Board DC Power Supply

V-Board Remote Receiver, LED

XV-Board DVB Tuner

TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P

All manuals and user guides at all-guides.com

6 Before servicing

6.1. Kind and location of the flexible cable and bridge cable

Ref No. Connecter type Pins Location Opposite Ref No.

G1 - 10pin G-Board V1

G4 - 30pin G-Board H4

G5 - 20pin G-Board H5

G10 - 4pin G-Board speaker box L

G11 - 5pin G-Board speaker box R

AP1 Bridge Type 23pin AP-Board H1

AP2 - 7pin AP-Board P5 (CN101)

AP3 Bridge Type 11pin AP-Board P3

AP4 Bridge Type 22pin AP-Board DG4

AP5 Bridge Type 22pin AP-Board DG5

AP6 - 3pin AP-Board K6

DG3 Flexible type 40pin DG-Board H3

DG4 Bridge type 23pin DG-Board AP4

DG5 Bridge type 23pin DG-Board AP5

DG6 - 8pin DG-Board LCD Panel

DG7 - 32pin DG-Board LCD Panel

H1 Bridge type 23pin H-Board AP1

H4 - 30pin H-Board G4

H5 - 20pin H-Board G5

H3 Flexible type 40pin H-Board DG3

AP10 - 2pin AP-Board AC cord

K6 - 3pin K-Board AP6

P1 (CN203) - 8pin P-Board CN1 (Inverter)

P2 (CN101) - 7pin P-Board AP2

P3 (CN201) Bridge Type 11pin P-Board AP3

V1 - 10pin V-Board G1

TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P

All manuals and user guides at all-guides.com

Bridge cable connector

Flexible cable connector

6.2. How to remove the connector

TX-32LXD50 / TX-26LXD50 / TX-32LX50F / TX-32LX50P / TX-26LX50F / TX-26LX50P

All manuals and user guides at all-guides.com

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