Panasonic TX-29P190T Manuel utilisateur
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)
© 2005 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
TX-29P190T
MD3N 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 Overall Picture tube measured
diagonally: 73 cm
Viewable Picture tube measured
diagonally: 68 cm
Colour Television
Specifications
Order No. MTV0501406C3
CRT Deflection: 104°
Audio Output 8W x 2 (Speaker)
Headphones 3.5 mm Plug
Aerial Impedance 75 ΩUnbalanced 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,
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 SERVICE MODE FUNCTION 8
4.1. HOW TO ENTER SERVICE 1 8
4.2. HOW TO ENTER SERVICE 2 8
5 ADJUSTMENT PROCEDURE 12
5.1. VOLTAGE CONFIRMATION 12
5.2. E.H.T CHECK 12
5.3. SUB CONTRAST 12
5.4. SUB TINT 13
5.5. SUB COLOUR 13
5.6. VRS ADJUSTMENT 14
5.7. COLOUR PURITY 15
5.8. CONVERGENCE 15
5.9. CUT OFF 16
5.10. WHITE BALANCE 17
5.11. FOCUS 17
5.12. GEOMAGNETIC 17
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 Ωcoaxial aerial plug
Dimensions (W x D x H) 758 mm x 515 mm x 582 mm
Weight (Mass) 44 kg (Net)
Note:
Design and Specifications are subject to change without notice.
Weight and Dimensions shown are approximate.
5.13. SUB BRIGHT 17
6 DEFLECTION ADJUSTMENT 18
6.1. V-ADJUSTMENT/CONFIRMATION (4:3 MODE) 18
6.2. H-DEFLECTION CONFIRMATION/ADJUSTMENT (4:3
MODE) 18
6.3. EW ADJUSTMENT/CONFIRMATION (4:3 MODE) 19
6.4. V LINIALITY ADJUSTMENT / CONFIRMATION (4:3
MODE) 20
6.5. DEFLECTION (16:9 MODE) ADJUSTMENT /
CONFIRMATION 20
6.6. 525p DEFLECTION ADJUSTMENT / CONFIRMATION
20
6.7. 625p DEFLECTION ADJUSTMENT 21
6.8. VGA480 / 60 Hz DEFLECTION ADJUSTMENT /
CONFIRMATION 21
6.9. VGA400 / 70 Hz DEFLECTION ADJUSTMENT /
CONFIRMATION 21
6.10. TABLE 1 23
7 CONDUCTOR VIEWS 24
7.1. A-Board 1/2 24
7.2. A-Board 2/2 25
8 SCHEMATIC DIAGRAMS 26
8.1. SCHEMATIC DIAGRAM NOTES 26
8.2. A BOARD 28
8.3. G BOARD 32
8.4. X BOARD 33
8.5. DG BOARD 35
8.6. DG2 BOARD 39
CONTENTS
Page Page
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TX-29P190T
8.7. L BOARD 42
8.8. P BOARD 45
8.9. H BOARD 46
9 PARTS LOCATION 48
10 Replacement Parts List 49
10.1. Replacement Parts List Notes 49
10.2. Replacement Part List 50
3
TX-29P190T
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.
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.
4
TX-29P190T
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 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.
5
TX-29P190T
2 SERVICE HINTS
2.1. HOW TO REMOVE THE REAR
COVER
1. Remove the 9 screws as shown in 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.
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 TV set
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.
3.
To exit this mode, exit “Off-Timer” mode and the “Volume
Down [-/ ]” key simultaneously.
* This information is informed by Service Manual only.
6
TX-29P190T
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 [-/ ] button on the customer controls at the front of the set, at the same
time pressing the HELP button on the remote control and the screen will show:
7
TX-29P190T
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.
8
TX-29P190T
9
TX-29P190T
10
TX-29P190T
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