Panasonic TX-29P180B Service Manual

Colour Television

TX-29P180B

MD3N Chassis

Order No.

Specifications

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

Power Consumption 197 W

Standby condition: 11 W

Receiving System

Function 21 Systems

Reception of broadcast PAL B, G, H

transmissions and Playback PAL I

from Video Cassette Tape PAL D, K

Recorders SECAM B, G

SECAM D, K

SECAM K1

NTSC M (NTSC 3.58/4.5 MHz

Playback 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)

SECAM I

Playback from Special Disc PAL 60 Hz/5.5 MHz

Players and Special VCRs 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 50 Hz/4.5 MHz

Receiving Channels Regular TV

VHF BAND 2-12 (PAL/SECAM B, K1)

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 Overall Picture tube measured

diagonally: 73 cm

Viewable Picture tube measured

TX-29P180X

diagonally: 68 cm

CRT Deflection: 104°

Audio Output 8W x 2 (Speaker) 14W (Woofer)

Headphones 3.5 mm Plug

Aerial Impedance 75 Ω Unbalanced Coaxial

Video/Audio/Component

AV 1, 2, 3, 4

S-Video In Y:1 Vp-p, 75 Ω

DVD C:0:3 Vp-p 75 Ω

Y1.0Vp-p,75Ω

PB0.7Vp-p, 75Ω

PR0.7Vp-p, 75Ω

Monitor Out Video In 1 Vp-p, 75 Ω

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, Audio L/R terminals

AV2 IN (Front): S-Video,

Video, Audio L/R RGB

Terminals

AV3 IN (Rear): Video, Audio

L/R terminals

AV4 IN (Rear): Video or

Y/PB/PR, Audio L/R

terminals

RGB Input High-DENSITY D-sub 15 pin

31.5 kHz/60 Hz (640 x 480 dot) and

31.5 kHz/70 Hz (640 x 400 dot)

Remote Control Transmitter R6 (AA) Battery x 2

75 Ω coaxial aerial plug

Dimensions (W x D x H) 699 mm x 509 mm x 584 mm

Weight (Mass) 53 kg (Net)

Note:

Design and Specifications are subject to change without notice.

Weight and Dimensions shown are approximate.

CONTENTS

Page Page

1 Safety Precautions 3

1.1. General Guide

1.2. Leakage Current Cold Check

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

1.4. X-Radiation

2 SERVICE HINTS

2.1. HOW TO REMOVE THE REAR COVER

2.2. HOW TO MOVE THE CHASSIS INTO SERVICE

POSITION

2.3. HOTEL MODE

3 SELF CHECK

4 SERVICE MODE FUNCTION

4.1. HOW TO ENTER SERVICE 1

4.2. HOW TO ENTER SERVICE 2

5 ADJUSTMENT PROCEDURE

5.1. VOLTAGE CONFIRMATION

5.2. E.H.T CHECK

5.3. SUB CONTRAST

5.4. SUB TINT

5.5. SUB COLOUR

5.6. VRS ADJUSTMENT

5.7. COLOUR PURITY

5.8. CONVERGENCE

5.9. CUT OFF

5.10. WHITE BALANCE

5.11. FOCUS

5.12. GEOMAGNETIC

5.13. SUB BRIGHT

6 DEFLECTION ADJUSTMENT

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

6.2. H-DEFLECTION CONFIRMATION/ADJUSTMENT (4:3

MODE)

6.3. EW ADJUSTMENT/CONFIRMATION (4:3 MODE)

6.4. V LINIALITY ADJUSTMENT / CONFIRMATION (4:3

MODE)

6.5. DEFLECTION (16:9 MODE) ADJUSTMENT /

CONFIRMATION

6.6. 525p DEFLECTION ADJUSTMENT / CONFIRMATION

6.7. 625p DEFLECTION ADJUSTMENT

6.8. VGA480 / 60 Hz DEFLECTIO N ADJUSTME NT /

CONFIRMATION

6.9. VGA400 / 70 Hz DEFLECTIO N ADJUSTME NT /

CONFIRMATION

6.10. TABLE 1

7 CONDUCTOR VIEWS

7.1. A-Board

8 SCHEMATIC DIAGRAMS

8.1. SCHEMATIC DIAGRAM NOTES

9 PARTS LOCATION

10 Replacement Parts List

10.1. Replacement Parts List Notes

10.2. Replacement Part List

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, especia lly 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.

TX-29P180X

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

and 20 M

ΩΩΩΩ

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

ΩΩΩΩ. When the exposed metal does not have a

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 expose d 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.

5. Potential, as high as 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.

32.0

kV is present when this receiver

1.2. Leakage Current Cold Check

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

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

6. The potential any point should not exceed 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.

1.0 V rms

. In the

2. Turn on the receiver’s power switch.

TX-29P180X

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 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 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.

31.0 ± 1 kV

. If the meter indication is out of

32.0 kV

without causing X-

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.

TX-29P180X

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 “[+/ 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 be disabled.

To exit this mode

3. Down [-/ * This information is informed by Service Manual only.

, exit “Off-Timer” mode and the “Volume

]” key simultaneously.

]” key on the TV set

TX-29P180X

3 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 n [-/ time pressing the HELP button on the remote control and the screen will show:

] button on the customer controls at the front of the set, at the same

TX-29P180X

4 SERVICE MODE FUNCTION

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

4.1. HOW TO ENTER SERVICE 1

1. In sound menu, set BASS to MAX and set TREBLE to MINIMUM.

2. Simultaneously press INDEX button on remote control and VOLUME DOWN button [-] on the TV set.

4.2. HOW TO ENTER SERVICE 2

1. Set the channel to CH99.

2. Press HOLD button on remote control.

Note

To exit Service mode, press N or Power button on remote control.

TX-29P180X

Options

Description

Model option1 00 0E0 b0 1 Colour system (TV) PAL(1)

b1 1 SECAM(1) b2 1 NTSC(1) b3 1 M.NTSC(1) b4 0 Colour system (AV) PAL(1) b5 0 SECAM(1) b6 1 NTSC(1)

b7 1 M.NTSC(1) option2 00 0E1 b0 1 CH Plan ASIA/M.E/HK/UK/CHINA(1)

b1 1 NZ/INDNES(1)

b2 1 AUSTRALIA(1)

b3 1 E.EUROPE(1)

b4 1 SPECIAL(1)

b5 1 AMERICA(1)

b6 1 CATV(1)

b7 1 JAPAN(1) option3 00 0E2 b0 1 A2 enable 4.5(1)

b1 1 5.5(1)

b2 1 6.0(1)

b3 1 NICAM enable 6.5(1)

b4 0 4.5(1)

b5 0 5.5(1)

b6 0 6.0(1)

b7 0 6.5(1) option4 00 0E3 b0 0 A2 select 6.5MHz 5.742MHz(0) 6.742MHz(1)

b1 1 NICAM priority ASIA/M.E.(1)

b2 0 HK/UK(1)

b3 0 CHINA(1)

b4 0 NZ/INDONESIA(1)

b5 1 AUSTRALIA(1)

b6 1 E.EUROPE(1)

b7 1 SPECIAL(1) option5 00 0E4 b0 0 Virtual Dolby Surround enable(1)

b1 1 NICAM C4 bit enable(1)

b2 1 Noise mute Noise mute enable(1)

b3 1 Monitor out AV1 mute Monitor out AV1 mute(1)

b4 1 SIF 4.5(1)

b5 1 5.5(1)

b6 1 6.0(1)

b7 1 6.5(1)

TX-29P180X

Options

Description

Model option6 00 0E5 b0 1 Reserved Geomagnetic Enable (1)

b1 0 Geomagnetic Sensor Geomagnetic sensor enable (1) b2 0 Geomagnetic Polarity Geomagnetic polarity Plus+(0), Minus-(1) b3 0 P.NR. Enable(1) b4 1 SASO enable SASO enable(1) b5 0 Search speed Slow(1) Fast(0) b6 1 VCR/GAME in search On(0) Off(1)

b7 0 Tuner MACO tuner (0), ALPS tuner (1) option7 00 0E6 b0 0 TEXT enable(1)

b1 1 TEXT TOP TOP enable (1)

b2 1 TEXT language English(1)

b3 1 Cyrillic(1)

b4 1 E.Europe 1(1)

b5 0 E.Europe 2(1)

b6 1 Arabic(1)

b7 0 option8 00 0E7 b0 1 VGA enable(1)

b1 1 Reserved 1080i Enable(1)

b2 0 Reserved ID-1 Enable(1)

b3 0 Australia enable(1)

b4 1 OSD language ARABIC(1)

b5 0 RUSSIAN(1)

b6 1 CHINESE(1)

b7 0 free option9 00 0E8 b0 1 Panasonic LOGO Display(1)

b1 1 MPX status Display(1)

b2 0 Scan mode AUTO for P-NTSC Progressive2(0), Progressive(1)

b3 0 free

b4 0 free

b5 0 free

b6 1 X-ray protection Enable(1)

b7 1 5V detect protection Enable(1) option10 00 0E9 b0 1 free enable(1)

b1 1 OSD language enable(1)

b2 1 Noise mute enable(1)

b3 1 Monitor out AV1 mute(1)

b4 1 free 4.5(1)

b5 1 free 5.5(1)

b6 1 free 6.0(1)

b7 1 Protect 5V detect 6.5(1)

TX-29P180X

Options

Description

Model option11 4E 0EA b0 0 Shop mode enable(1)

b1 1 Full/16.9 display Reserved b2 1 Sub Headphone enable(1) b3 1 Scan mode Blanking Blanking enable(1) b4 0 User aspect 14:9 enable(1) b5 0 NICAM C4 bit enable(1) b6 1 ID-1 enable(1)

b7 0 1080i enable(1) option12 41 0EB b0 1 Asia Asia(1), Europe(0)

b1 0

b2 0 Ireland not use

b3 0 UK not use

b4 0

b5 0 (Reserved for 29 inch etc.)

b6 1 Large size 52(1) / 42(0) for PTV, 36(1) / 32(0) for wide, 34(1) / 29(0) for 4:3

b7 0 PTV PTV (1) option13 7A Temporary 0EC b0 0 VDU Version A21 (0), A12 (1)

b1 1 GC Version ES5(0), ES6(1)

b2 0 UV Swap Swap(1)

b3 1 TEXT Enable(1)

b4 1 Main GC ES7 ES7(1), ES5/6(0)

b5 1 Sub GC ES7v ES7(1), ES5/6(0)

b6 1

b7 0 CIP2 without CIP1(0), with CIP1(1)

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