Panasonic TX-34P800R Manuel utilisateur

Power Source AC AUTO 110-240 V, 50/60 Hz

Power Consumption 200 W

Standby condition 5W

Receiving System 21 Systems

Function

Reception of broadcast PAL B, G, H

transmissions and Playback from PAL I

Video Cassette Tape Recorders PAL D, K

SECAM B, G

SECAM D, K

SECAM K1

NTSC M (NTSC 3.58/4.5 MHz)

Playback from special VCR’s NTSC 4.43/5.5 MHz

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

SECAM I

Playback from Special Disc Player PAL 60 Hz/5.5 MHz

and Special VCR’s PAL 60 Hz/6.0 MHz

PAL 60 Hz/6.5 MHz

SECAM 60 Hz/5.5 MHz

SECAM 60 Hz/6.0 MHz

SECAM 60 Hz/6.5 MHz

NTSC 50Hz/4.5MHz

Receiving Channels Regular TV

VHF BAND 2-12 PAL/SECAM B, K1

rights reserved. Unauthorized copying and

distribution is a violation of law.

TX-34P800R

GP11 Chassis

0-12 PAL B (AUST.)

1-9 PAL B (N.Z.)

1-12 PAL/SECAM D

1-12 NTSC M (JAPAN)

2-13 NTSC M (U.S.A.)

UHF BAND 21-69 PAL G,H,I/SECAM G,K,K1

28-69 PAL B (AUST.)

13-57 PAL D,K

13-62 NTSC M (JAPAN)

14-69 NTSC M (U.S.A.)

CATV S1-S20 (OSCAR)

1-125 (U.S.A. CATV)

C13-C49 (JAPAN)

S21-S41 (HYPER)

Z1-Z37 (CHINA)

5A, 9A (AUST.)

Receiving Stereo System NICAM I, NICAM B/G, NICAM D

A2 (German)

Tuning System Frequency synthesizer

Auto Search Tuning

POSITION : 100 Position

DIRECT : 125 Position

High Voltage 31.0 ± 1.0 kV at zero beam

current

Picture Tube Minimum Viewable Picture tube

measured diagonally : 80 cm

CRT Deflection : 104°

Audio Output 20 W

Colour Television

Specification

Order No. MTV0401326C3

Headphone jack 3.5 mm Plug

Aerial Impedance 75 ΩUnbalanced Coaxial

Video/Audio/Component Terminals

AV 1, 2, 3, 4 S-Video In Y:1 Vp-p, 75 Ω

C:0:3 Vp-p 75 Ω

DVD (Y/PB/PR)

Video In 1 Vp-p, 75 Ω

Monitor Out Audio In Approx 0.4 V 47 kΩ

Video Out 1 Vp-p, 75 Ω

Audio Out Approx. 0.4 V 1 kΩ

AV1 IN (Rear) : S-Video, Video,

1 SAFETY PRECAUTIONS 3

1.1. General Guide 3

1.2. Leakage Current Cold Check 3

1.3. Leakage Current Hot Check (See Fig. 1) 3

1.4. X-Radiation 3

2 SELF CHECK 5

3 MARKET MODE FUNCTION 6

4 ADJUSTMENT PROCEDURE 9

4.1. Voltage Confirmation 9

4.2. E.H.T Check 9

4.3. Sub Contrast 10

4.4. Sub Tint 11

4.5. Sub Colour 12

4.6. Secam Black Level 12

4.7. VRS Adjustment 13

4.8. Colour Purity 13

4.9. Convergence 13

4.10. Cut Off 14

4.11. White Balance 15

4.12. Focus 16

4.13. Geomagnetic 16

4.14. Sub Bright 16

5 DEFLECTION ADJUSTMENT 17

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

Audio L/R terminals

AV2 IN (Rear) : Video or Y/PB/PR

Audio L/R terminals

AV3 IN (Front) : S-Video, Video,

Audio L/R RGB terminals

AV4 IN (Rear) : Video or Y/PB/PR

Audio L/R terminals

Dimensions (WxDxH) 916 mm x 567.3 mm x 675.5 mm

Weight (Mass) 76 kg (Net)

Note:

Design and Specifications are subject to change without notice. Weight

and Dimensions shown are approximate.

5.2. H-Deflection Confirmation/Adjustment (4:3 Mode) 18

5.3. Pincushion Adjustment/Confirmation (4:3 Mode) 19

5.4. V Liniality Adjstment/Confirmation (4:3 Mode) 21

5.5. Deflection (16:9 Mode) Adjustment/Confirmation 22

5.6. Deflection (16:9Mode) Adjustment/Confirmation 23

5.7. 1125i / 50Hz Deflection Adjustment/Confirmation 24

5.8. Table 1 26

6 Conductor Views 27

6.1. A BOARD 27

6.2. D BOARD 29

6.3. DG BOARD 31

7 Schematic Diagrams 32

7.1. Schematic Diagram for GP11 Chassis 32

7.2. G Board 33

7.3. GM Board 35

7.4. DF Board 37

7.5. H Board 39

7.6. DG Board 42

7.7. L Board 52

7.8. A Board 55

7.9. D Board 61

8 Parts Location 64

9 Replacement Parts List 65

9.1. Replacement Parts List 66

CONTENTS

Page Page

TX-34P800R

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 32.0 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

by anyone 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 path to 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 returned to

the customer.

1.4. X-Radiation

Warning :

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

section and the picture tube.

TX-34P800R

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 31.0 ± 1 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-34P800R

2 SELF CHECK

Selection of SELF CHECK Mode

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

TX-34P800R

3 MARKET MODE FUNCTION

Outline:

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

adjusted by remote control in Market 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 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 then press MUTE button together press - 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-34P800R

4 ADJUSTMENT PROCEDURE

4.1. Voltage Confirmation

Item/Preparation Adjustment Procedure

+B Voltage

1. Operate the TV set.

2. Set controls :

Bright Minimum

Contrast Minimum

Volume Minimum

1. TPD15 : 133.0 ± 1V (D-Board)

2. TPD13 : 15.5 ± 1V (D-Board)

3. TPD14 : -15 ± 1V (D-Board)

4. TPD18 : 7.0 ± 0.5V (D-Board)

5. TPD9-TPD20 : 31.5 ± 1.0V (D-Board)

6. TPD10 : 5.1 ± 0.25V (D-Board)

7. TPD32 : 220.0 ± 10V (D-Board)

8. IC1406 PIN4 : 2.5V ± 0.25V (A-Board)

9. IC1405 PIN2 : 3.3 ± 0.3V / -0.2V (A-Board)

10. IC1410 PIN2 : 12 ± 0.4V (A-Board)

11. TP1410 : 1.85V ± 0.1V (A-Board)

12. IC001 PIN3 : 5.0 ± 0.4V (A-Board)

13. IC1413 PIN3 : 5.0 ± 0.4V (A-Board)

14. IC1414 PIN3 : 9.0 ± 0.4V (A-Board)

15. IC2000 PIN2 : 8.0 ± 0.4V (A-Board)

16. IC1412 PIN2 : 3.2 ± 2V (A-Board)

17. IC1412 PIN4 : 2.5 ± 0.25V (A-Board)

4.2. E.H.T Check

Item/Preparation Adjustment Procedure

1. Receive an RF signal, window or crosshatch pattern.

2. Set the Brightness and Contrast to minimum (0 Beam)

3. Connect the High Voltage Voltmeter to the CRT ANODE CAP.

4. The set should be switched to AV (no input) contrast and

brightness minimum.

1. Check the EHT voltage is (31.4 ± 1.0) kV.

2. Switch from AV mode to TV.

3. With the Brightness and the contrast controls MAX, check that the

high voltage does not drop more than 3.0 kV from the above

measurement with R.F. signal.

TX-34P800R

4.3. Sub Contrast

Item/Preparation Adjustment Procedure

1. Receive PAL colour bar pattern

2. Connect oscilloscope to TPL 2 (Green)

3. Set controls:

BRT............. ...CENTER

COLOUR........CENTER

CONTRAST....MAX

AI................ ....OFF

1. Adjust Sub Contrast (Service 1) :

A=2.3 ~ 3.0 ± 0.1V

Fig. 2

2. Adjust Video gain 2 (Service 1) so that Sub picture level B

becomes as same as Main picture level A.

Fig. 3

TX-34P800R

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