TX-32E50D, TX-32PS12D, TX-32PS12F, TX-32PS12P - Panasonic TV Service Manual (repair manual)

Power Source:  220-240V 

a.c.,50Hz

Power Consumption: 94W

Stand-by Power 
Consumption:  

1,5W

Aerial Impedance:  

75Ω unbalanced, Coaxial Type

Receiving System:  

PAL-I, B/G, D/K, PAL-525/60

 

SECAM B/G, D/K, L,L’

 

M.NTSC (AV only)

 

NTSC (AV only)

Receiving Channels:
VHF E2-E12 

VHF H1-H2(ITALY)

VHF A-H (ITALY) 

VHF R1-R2

VHF R3-R5 

VHF R6-R12

UHF E21-E69 

CATV (S01-S05)

CATV S1-S10 (M1-M10) 

CATV S11-S20 (U1-U10)

CATV S21-S41 (HYPERBAND)

Intermediate Frequency:
Video/Audio
Video 38,9MHz, 

33,9Mhz

Sound 

33,4MHz (B/G), 33,16MHz (A2)

 33,05MHz 

(NICAM 

B/G,D/K,L)

 

32,4MHz (D/K), 32,66MHz (CZ STEREO)

 

40,4MHz (L’), 39,75MHz (L’NICAM)

Colour 34,47MHz 

(PAL)

34,5MHz, 34,65MHz (SECAM)

 

38,3MHz, 38,15MHz (SECAM L’)

AV1 IN 

Video (21pin) 

1V p-p 75Ω

 

Audio(21pin) 

500mV rms 10kΩ

 

RGB (21pin)  

0,7V p-p 75Ω

AV1 OUT 

Video (21pin) 

1V p-p 75Ω

 

Audio (21pin) 

500mV rms 1kΩ

AV2 IN 

Video (21pin) 

1V p-p 75Ω

 

Audio(21pin) 

500mV rms 10kΩ

 

S-Video IN 

Y: 1V p-p 75Ω

 

(21pin) 

C: 0,3V p-p 75Ω

AV2 OUT 

Video (21pin) 

1V p-p 75Ω

 

Audio (21pin) 

500mV rms 1kΩ

AV3 FRONT  Audio (RCAx2) 

500mV rms 10kΩ

 

Video (RCAx1) 

1V p-p 75Ω

 

S-Video IN 

Y: 1V p-p 75Ω

 

 

C: 0,3V p-p 75Ω

High Voltage: 

29kV ± 1kV

Picture Tube:   W76QEN693X17   76cm

W76MAF185X72   76cm  - (

TX-32PS12P)

Audio Output: 2x7W 

RMS, 

2x14W 

MPO,

 8Ω 

impedance

Headphones: 8Ω 

impedance

Accesories
supplied: Remote 

Control

 

2xR6 (UM3) Batteries

Dimensions:
Height: 567 

mm

Width: 902 

mm

Depth: 551 

mm

Net weight: 

53 kg

 (TX-32PS12P 

= 

51 

kg)

Specifications are subject to change without notice.
Weights and dimensions shown are approximate. 

Order No: PCZ0510104C2

SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SERVICE HINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
VOLTAGE CHECK AND OPTION BYTES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
WAVEFORM PATTERN TABLE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ALIGNMENT SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
BLOCK DIAGRAMS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
PARTS LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
REPLACEMENT PARTS LIST  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

18

CONDUCTOR VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1

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

a.c. supply before servicing a hot chassis.

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

high voltage circuits. If a short circuit is found, replace
all parts that have been overheated or damaged by the 
short circuit.

3.  After servicing, see that all the protective devices

such as insulation barriers, insulation papers, shields
and isolation R-C combinations are correctly installed.

4.  When the receiver is not being used for a long period

of time, unplug the power cord from the a.c. outlet.

5.  Potentials as high as 30kV are 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
familiar with the precautions necessary when working
on high voltage equipment. Always discharge the
anode of the tube.

6.   After servicing make the following leakage current

checks to prevent the customer from being exposed
to shock hazard.

1.  Unplug the a.c. cord and connect a jumper between

the two prongs of the plug.

2. Turn on the receiver’s power switch.
3.  Measure the resistance value with an ohmmeter,

between the jumpered a.c. 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 4M ohm and
20M ohm. When the exposed metal does not have a
return path to the chassis, the reading must be infinite.

1.  Plug the a.c. cord directly into the a.c. outlet. Do not

use an isolation transformer for this check.

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

exposed metallic part on the receiver and an earth,
such as a water pipe.

3.  Use an a.c. voltmeter with high impedance to

measure the potential across the resistor.

4.  Check each exposed metallic part and check the

voltage at each point.

5.  Reverse the a.c. plug at the outlet and repeat each of

the previous measurements.

6.  The potential at any point should not exceed

1,4 Vrms. In case a measurement is outside 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.  The potential sources of X-Radiation in TV sets are

the high voltage section and the picture tube.

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

that the jig is capable of handling 30kV without
causing X-Radiation.

 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 should indicate:

29kV ± 1kV.
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 any X-Radiation possibility, it is essential

to use the specified tube.

a.c. VOLTMETER

2k 10 

Watts

TO INSTRUMENT’S EXPOSED
METALLIC PARTS

WATER PIPE
 (EARTH)

Fig.1

How to remove the rear cover
1. Remove the 11 screws as shown in Fig. 2.

Fig. 2

CRT Board

SCREEN  FOCUS

MAIN Board     CONTROL Board

Fig. 3

SMT

2094.0074*

test conditions ;
Input voltage : 230VAC
TV set on ON mode (if nothing specified)
Picture : colour bar - Dynamic
Sound : 1Khz - (mode : Music)

MAIN B+ Voltage [V]

129,5

± 1 V

D820

14V [V]

13

± 0,5 V

D831

8V [V]

7,4

± 0,5 V

D830

5V [V]

4,6

± 0,5 V

D870

SOUND B+ [V]

13,2

± 0,5 V

*Volume Min.

12,8

± 0,5 V

*Volume Max.

FBT

1302.2002*

test conditions ;
Input voltage : 230VAC
Ct = 11nF
Cs = 0,3uF
L linearity: TRL-5R0D
CRT : W76QEN693X172

High Voltage [V]

27,85

± 0,5 kV

load Max.

29,20

± 0,5 kV

load Min.

Retrace time

5,40

± 0,2 us

Vcp [V]

1210

± 20 V

Video Voltage [V]

180

± 5%

14V line [V]

14

± 5%

52V line [V]

52

± 5%

Heater Voltage [Vrms]

6,2

± 5%

G2 SCREEN / CUTOFF

Adjust the screen VR till G2-SCREEN get 32(31~33).

1. Receive a Color bar pattern

2. set the TV into Service mode.

3. Select G2 SCREEN item.

MODEL

OPTION BYTE 1

OPTION BYTE 2

TX-32E50D

1 0 0 1 1 0 0 0

0 x 98

0 1 1 1 1 0 1 1

0 x 7B

TX-32PS12D

1 0 0 1 1 0 0 0

0 x 98

0 1 1 1 1 0 1 1

0 x 7B

TX-32PS12F

0 0 0 1 1 0 0 0

0 x 18

0 1 1 1 1 0 1 1

0 x 7B

TX-32PS12P

0 0 0 1 1 0 0 0

0 x 18

0 1 1 1 1 0 1 1

0 x 7B