Panasonic Tx-34p180b Manual de usuario

Power Source

uto 110-240 V, 50

60 Hz

Power Consumption 191 W

Standb

condition: 11 W

Receiving System

Function 21 S

stems

Reception of broadcast P

LB,G,H

transmissions and Playbac

from Video Cassette Tape P

LD,K

Recorders SEC

MB,G

SEC

MD,K

SEC

MK1

NTSC M (NTSC 3.58

4.5 MHz

Playbac

from special NTSC 4.43

5.5 MHz

VCRs NTSC 4.43

6.0 MHz

NTSC 4.43

6.5 MHz

NTSC 3.58

5.5 MHz

NTSC 3.58

6.0 MHz

NTSC 3.58

6.5 MHz)

SEC

Playbac

from Special Disc P

L60Hz

5.5 MHz

Players and Special VCRs P

L60Hz

6.0 MHz

L60Hz

6.5 MHz

SEC

M60Hz

5.5 MHz

SEC

M60Hz

6.0 MHz

SEC

M60Hz

6.5 MHz

NTSC 50 Hz

4.5 MHz

rights reserved. Unauthorized copying and

distribution is a violation of law.

TX-34P180B

GP2 Chassis

Receiving Channels Regular TV

VHF BAND 2-12 (P

SEC

MB,K1)

0-12 (P

UST.)

1-9 (P

LBN.Z.)

1-12 (P

SEC

MD)

1-12 (NTSC M Japan)

2-13 (NTSC M U.S.

UHF BAND 21-69 (P

LG,H,I

SEC

M G,K,K1)

28-69 (P

UST.)

13-57 (P

LD,K)

13-62 (NTSC M Japan)

14-69 (NTSC M U.S.

CATV S1-S20 (OSC

1-125 (U.S.

TV)

C13-C49 (J

S21-S41 (H

PER)

Z1-Z37 (CHIN

)

(

UST.)

Receiving Stereo System NIC

MI,NIC

G, NIC

MD,

(German)

Tuning System Frequenc

nthesizer

uto Search Tuning

POSITION: 100 Position

DIRECT: 125 Position

High Voltage 32.0 ± 1.0 kV at zero beam current

Picture Tube Overall Picture tube measured

Colour Television

Specifications

Order No. MTV0401338C3

(M8OLSW096

)

diagonall

:73cm

Viewable Picture tube measured

diagonall

:68cm

CRT Deflection: 104 °

udio Output 20W

Headphones 3.5 mm Plug

erial Impedance 75 ΩUnbalanced Coa

ial

Video /

udio / Component

V1,2,3,4

S-Video In

:1 Vp-p, 75 Ω

DVD C:0:3 Vp-p 75 Ω

1.0Vp-p, 75 Ω

PB0.7Vp-p, 75 Ω

PR0.7Vp-p, 75 Ω

Monitor Out Video In 1 Vp-p, 75 Ω

udio In

ppro

.0.4V47kΩ

Video Out 1 Vp-p, 75 Ω

udio Out

ppro

.0.4V1kΩ

V1 IN (Rear): S-Video,

1 SAFETY PRECAUTIONS 4

1.1. General Guide 4

1.2. Leakage Current Cold Check 4

1.3. Leakage Current Hot Check (See Fig. 1) 4

1.4. X-Radiation 5

2 SERVICE HINTS 6

2.1. HOW TO REMOVE THE REAR COVER 6

2.2. HOW TO MOVE THE CHASSIS INTO SERVICE

POSITION 6

2.3. HOTEL MODE 6

3 SELF CHECK 7

4 MARKET MODE FUNCTION 8

5 ADJUSTMENT PROCEDURE 11

5.1. VOLTAGE CONFIRMATION 11

5.2. E.H.T CHECK 11

5.3. SUB CONTRAST 11

5.4. SUB TINT 12

5.5. SUB COLOUR 12

5.6. VRS ADJUSTMENT 13

5.7. COLOUR PURITY 14

5.8. CONVERGENCE 14

5.9. CUT OFF 15

5.10. WHITE BALANCE 16

5.11. FOCUS 16

5.12. GEOMAGNETIC 16

Video,

udio L

R terminals

V2 IN (Front): S-Video,

Video,

udio L

R RGB

Terminals

V3 IN (Rear): Video,

udio

R terminals

V4 IN (Rear): Video or

PR,

udio L

terminals

RGB Input High-DENSIT

D-sub 15 pin

31.5 kHz / 60 Hz (640

480 dot) and

31.5 kHz / 70 Hz (640

400 dot)

Remote Control Transmitter R6 (

)Batter

75 Ωcoa

ial aerial plug

Dimensions (W

H) 899 mm

567 mm

674.9 mm

Weight (Mass) 71 kg (Net)

Note :

Design and Specifications are sub

ect to change without notice.

Weight and Dimensions shown are appro

imate.

5.13. SUB BRIGHT 16

6 DEFLECTION ADJUSTMENT 17

6.1. V-Adjustment / Confirmation (4:3 Mode) 17

6.2. H-Deflection Confirmation / Adjustment (4:3 Mode) 17

6.3. EW Adjustment / Confirmation (4:3 MODE) 18

6.4. 525p (YUV) DEFLECTION (4:3 MODE) ADJUSTMENT /

CONFIRMATION 19

6.5. 525p (YUV) DEFLECTION (16:9 MODE)

CONFIRMATION. 19

6.6. 625p (YUV) DEFLECTION (4:3 MODE) CONFIRMATION.

6.7. 625p (YUV) DEFLECTION (16:9 MODE)

CONFIRMATION. 20

6.8. V-LINEAR ADJUSTMENT / CONFIRMATION (4:3 MODE)

6.9. Table 1 20

7 CONDUCTOR VIEWS 21

7.1. D-Board 21

8 SCHEMATIC DIAGRAMS 22

8.1. SCHEMATIC DIAGRAM NOTES 22

8.2. GM BOARD 24

8.3. L BOARD 26

8.4. A BOARD 29

8.5. D BOARD 34

8.6. G BOARD 39

CONTENTS

Page Page

TX-34P180B

9 PARTS LOCATION 41

10 REPLACEMENT PARTS LIST 42

10.1. Replacement Parts List Notes 42

10.2. Replacement Part List 43

TX-34P180B

1 SAFETY PRECAUTIONS

1.1. General Guide

1. It is advisable to insert an isolation transformer in the AC

supply before servicing a hot chassis.

2. When servicing, observe the original lead dress, especially

the lead dress in the high voltage circuits. If a short circuit is

found, replace all parts which have been overheated or

damaged by the short circuit.

3. After servicing, see to it that all the protective devices such

as insulation barriers, insulation papers, shields and

isolation R-C combinations, are properly installed.

4. When the receiver is not to be used for a long period of

time, unplug the power cord from the AC outlet.

5. Potential, as high as 31.0 kV is present when this receiver

is in operation. Operation of the receiver without the rear

cover involves the danger of a shock hazard from the

receiver power supply. Servicing should not be attempted

byanyone who is not thoroughly familiar with the

precautions necessary when working on high voltage

equipment. Always discharge the anode of the picture tube

to the receiver chassis before handling the tube.

6. After servicing make the following leakage current checks to

prevent the customer from being exposed to shock

hazards.

1.2. Leakage Current Cold Check

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

prongs on the plug.

2. Turn on the receiver’s power switch.

3. Measure the resistance value, with an ohmmeter, between

the jumper AC plug and each exposed metallic cabinet part

on the receiver, such as screw heads, aerials, connectors,

control shafts, etc. When the exposed metallic part has a

return pathto the chassis, the reading should be between 4

MΩ

ΩΩ

Ωand 20 MΩ

ΩΩ

Ω. When the exposed metal does not have

a return path to the chassis, the reading must be infinite.

1.3. Leakage Current Hot Check

(See Fig. 1)

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

isolation transformer for this check.

2. Connect a 2kΩ, 10 W resistor in series with an exposed

metallic part on the receiver and an earth such as a water

pipe.

3. Use an AC voltmeter, with high impedance type, to

measure the potential across the resistor.

4. Check each exposed metallic part, and measure the

voltage at each point.

(Fig. 1)

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

above measurements.

6. The potential any point should not exceed 1.0 V rms. In the

case of a measurement being outside of the limits specified,

there is a possibility of a shock hazard, and the receiver

should be repaired and rechecked before it is returnedto the

customer.

TX-34P180B

1.4. X-Radiation

Warning:

1. The potential sources of X-Radiation in TV sets are the EHT

section and the picture tube.

2. When using a picture tube test rig for service, ensure that

the rig is capable of handling 32.0 kV without causing X-

Radiation.

Note: It is important to use an accurate periodically calibrated

high voltage meter.

1. Set the brightness to minimum.

2. Measure the High Voltage. The meter reading should

indicate 32.0 ± 1.0 kV. If the meter indication is out of

tolerance, immediate service and correction is required to

prevent the possibility of premature component failure.

3. To prevent the possibility of X-Radiation, it is essential to

use the specified picture tube.

TX-34P180B

2 SERVICE HINTS

2.1. HOW TO REMOVE THE REAR

COVER

1. Remove the 9 screws as shown in Fig. 1.

Fig. 1

2.2. HOW TO MOVE THE CHASSIS

INTO SERVICE POSITION

1. Hold and lift the rear of the chassis and gently pull the

chassis towards you as shown in Fig. 3.

2. Release the respective wiring clips and rotate the chassis

vertically through 90° anticlockwise.

3. After servicing replace the bead clamper and ensure all

wiring is returned to its original position before returning the

receiver to the customer.

(Fig. 3)

2.3. HOTEL MODE

Purpose

1. At Hotels, this Mode prevents the customer from changing

the TV preset data such as Channel preset data.

Note: This Mode is useful for Hotels. You should not get

into “Hotel mode” with Normal use.

Operation

1. To get into “Hotel Mode”, press the remote control “Recall”

button and Channel up “[+/ ]” key on the TVset

simultaneously, after setting the “Off-Timer” mode.

2. In this mode, the Channel up and down Function will be

enabled as normal and the maximum volume level for this

mode is set at the current volume level, i.e. the setting at

the level before entering the mode. However, other

functions will bedisabled.

3. To exit this mode, exit “Off-Timer” mode and the “Volume

Down [-/ ]” key simultaneously.

* This information isinformed by Service Manual only.

TX-34P180B

3 SELF CHECK

1. Selection of SELF CHECK Mode.

2. Press Timer button on the remote control and press button - on the TV set.

TX-34P180B

4 MARKET MODE FUNCTION

Outline:

MPU controls the functions switching for each Ics through Ics bus in this chassis. The following setting and adjustment can be

adjusted by remote control in Service Mode.

1. Selection of SERVICE 1 Mode

Adjust the Volume “ZERO” and set OFF TIMER button to 30 min. Then simultaneously press the Recal button on the remote

control and Volume button - the TV set.

2. Selection of SERVICE 1 Mode

Cursor moves each Mode by pressing “3” or “4” of 10 key button on the remote control.

3. Selection of SERVICE 2 Mode

Adjust Volume “ZERO” and set OFF TIMER button to 30 min. Then simultaneously press the Recal button on the remote

control and Volume button - on the TV set then press MUTE button togetherpress - button on the TV set.

4. Selection of HOTEL Mode

Press recall button on the remote control and press button + on the TV set.

TX-34P180B

DATA

Option 1 00

b0 Colour system (TV) AUTO (1)

b1 SECAM (1)

b2 NTSC (1)

b3 M.NTSC (1)

b4 TV Colour system NTSC 50 (1)

b5 SECAM 60 (1)

b6 AV Colour system NTSC 50 (1)

b7 SECAM 60 (1)

Option 2 00

b0 CH Plan for Asia ASIA / M.E (1)

b1 NZ/INDNES (1)

b2 AUSTRALIA (1)

b3 E.EUROPE (1)

b4 SPECIAL (1)

b5 AMERICA (1)

b6 CATV (1)

b7 JAPAN (1)

Option 3 00

b0 PIP (1)

b1 2 TUNER (1)

b2 VGA (1)

b3 YUV (1)

b4 CRT (1)

b5 HYPER (1)

b6 SIF (1)

b7 SIF (1)

Option 4 00

b0 A2 4.5 (1)

b1 5.5 (1)

b2 6.0 (1)

b3 6.5 (1)

b4 NICAM 4.5 (1)

b5 5.5 (1)

b6 6.0 (1)

b7 6.5 (1)

Option 5 00

b0 A2 6.5M SELECT(1)

b1 NICAM PRIORITY ASIA / ME(1)

b2 HK / UK (1)

CHINA (1)

b4 NZ / INDONESIA

b5 AUSTRALIA (1)

b6 E.EURO (1)

b7 SPECIAL (1)

Option 6 00

b0 IF 38.9MHZ (1)

b1 SASO (1)

b2 IF12C (1)

MON.OUT AV1 MUTE (1)

b4 TUNER SLAVE C2 (1)

b5 ALPS TUNER (1)

b6 VCR GAME (1)

b7 COMB (1)

Option 7 00

b0 POWER ON EC (1)

b1 BLANKING TV (1)

b2 AV (1)

b3 AUTO WIDE (1)

b4 VOL.CORRECT (1)

b5 AV LINK (1)

b6 MPX DISPLAY N (1)

b7 NOISE MUE (1)

Option 8 00

b0 AC1 AUTOMP (1)

TX-34P180B

b1 GEOMAG CENSOR (1)

b2 GEOMAG POLAR (1)

b3 RF ATT. (1)

b4 FINE TUNEING (1)

b5 SLOW SEARCH (1)

b6 TOP (1)

b7 TELETEXT FLOP (1)

Option 9 00

b0 DOLBY (1)

b1 3D (1)

b2 EXPORT DOLBY (1)

b3 WOOFER LINEOUT (1)

b4 EXT. WOOFER

b5 D-3 (1)

b6 LOUDNESS (1)

b7 EXDAC VOL (1)

Option 10 00

b0 OSD LANGUAGE -

b1 ARABIC (1)

b2 RUSSIAN (1)

b3 CHINESE (1)

b4 -

b5 BC SAFETY (1)

b6 -

b7 PROT. 5V DET (1)

Option 11 00

b0 SHOPE MODE (1)

b1 -

b2 SUB HP (1)

b3 SCAN BLANK (1)

b4 14 : 9

b5 C4BIT (1)

b6 -

b7 -

Option 12 00

b0 -

b1 -

b2 -

b3 IRELAND (1)

b4 U.K (1)

b5 TEXT LATIN (1)

b6 TXT CIS (1)

b7 TXT E-EURO (1)

Option 13 00

b0 ACI EURO (1)

b1 ACI OFFSET (1)

b2 GP2 ADCWU (1)

b3 IRELAND (1)

b4 TEXT (1)

TX-34P180B

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