TX-32PS10D, TX-32PS10B, TX-32PS10F, TX-32PS10P, TX-28PS10D, TX-28PS10F, TX-28PS10P — Panasonic TV Service Manual (repair manual)

Model
TX-32PS10D TX-32PS10B TX-32PS10F TX-32PS10P TX-28PS10D TX-28PS10F TX-28PS10P
Pages
41
Size
5.45 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / COLOUR TELEVISION
File
tx-32ps10d-tx-32ps10b-tx-32ps10f-tx-32ps10p-tx-28p.pdf
Date

View Panasonic TX-32PS10D / TX-32PS10B / TX-32PS10F / TX-32PS10P / TX-28PS10D / TX-28PS10F / TX-28PS10P Service Manual online

Service Manual
Colour Television
TX-32PS10D, TX-32PS10D/B,
TX-32PS10F, TX-32PS10P,
TX-28PS10D, TX-28PS10F,
TX-28PS10P
EURO- 9L Chassis
SPECIFICATIONS
(Information in brackets [ ] refers to models 28”)
Power Source:
220-240V a.c., 50Hz
Power Consumption:
114W [105W] 
Stand-by Power
Consumption:
0,6W
Aerial Impedance:
75
Ω 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’)
Terminals:
AUDIO MONITOR OUT
Audio (RCAx2) 500mV rms 1k
AV1 IN
Video (21 pin)
1V p-p 75
Audio (21 pin)
500mV rms 10k
RGB (21 pin)
0,7V p-p 75
AV1 OUT
Video (21 pin)
1V p-p 75
Audio (21 pin)
500mV rms 1k
AV2 IN
Video (21 pin) 
1V p-p 75
Audio (21 pin) 
500mV rms 10k
S-Video IN
Y: 1V p-p 75
(21-pin)
C:0,3V p-p 75
AV2 OUT
Video (21 pin) 
1V p-p 75
Audio (21 pin)
500mV rms 1k
AV3 IN
S-Video IN
Y: 1V p-p 75
(4-pin)
C:0,3V p-p 75
Audio (RCAx2)
500mV rms 10k
Video (RCAx1)
1V p-p 75
AV4 IN
Video (21 pin) 
1V p-p 75
Audio (21 pin) 
500mV rms 10k
RGB (21 pin)
0,7V p-p 75
S-Video IN
Y: 1V p-p 75
(21-pin)
C:0,3V p-p 75
AV4 OUT
Video (21 pin) 
1V p-p 75
Audio (21 pin)
500mV rms 1k
High Voltage:
32kV ± 1kV   [30,5kV ± 1kV]
Picture Tube:
W76ELE50X71
76cm
[W66EKT50X71
66cm]
Audio Output:
2x10W RMS, 2x20W MPO, 
8
Ω impedance
Headphones:
8
Ω Impedance
Accessories 
supplied :
Remote Control
2 x R6 (UM3) Batteries
Dimensions:
Height:
567mm
[510mm]
Width:
902mm
[805mm]
Depth:
551mm
[533mm]
Net weight:
55,5kg
[43,3kg]
Specifications are subject to change without notice.
Weights and dimensions shown are approximate.
ORDER No. 03-SM-007
CONTENTS
SAFETY PRECAUTIONS ......................................................................................................................................................... 2
SERVICE HINTS ...................................................................................................................................................................... 3
ADJUSTMENT PROCEDURE AND SELF-CHECK .................................................................................................................. 4
WAVEFORM PATTERN TABLE............................................................................................................................................... 5
ALIGNMENT SETTINGS .......................................................................................................................................................... 6
BLOCK DIAGRAMS.................................................................................................................................................................. 7
PARTS LOCATION................................................................................................................................................................. 12
REPLACEMENT PARTS LIST................................................................................................................................................ 13
SCHEMATIC DIAGRAMS....................................................................................................................................................... 29
CONDUCTOR VIEWS ............................................................................................................................................................ 34
SAFETY PRECAUTION
GENERAL GUIDE LINES
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 33kV [31,5kV] 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.
LEAKAGE CURRENT COLD CHECK
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.
LEAKAGE CURRENT HOT CHECK
1.  Plug the a.c. cord directly into the a.c. outlet. Do not
use an isolation transformer for this check.
2.  Connect a 2k
Ω 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.
X-RADIATION WARNING
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 33kV [31,5kV]
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 should indicate:
32kV ± 1kV   [30,5kV ± 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.
HOT CHECK CIRCUIT
a.c. VOLTMETER
WATER PIPE
(EARTH)
TO INSTRUMENT'S EXPOSED
METALLIC PARTS
Fig. 1.
2k 10 Watts
2
SERVICE HINTS
How to remove the rear cover
1. Remove the 12 screws as shown in 
Fig.2.
LOCATION OF CONTROLS
3
Fig. 2
Fig. 3
SCREWS
SCREWS
L-Board
H-Board
A-Board
Focus
G-Board
Screen D-Board
Focus 2
G-Board
Screen
DF-Board
Focus 1
D-Board
FOR 32” MODELS:
FOR 28” MODELS:
 ADJUSTMENT PROCEDURE
Item / Preparation
Adjustments
+B SET-UP
1.  Receive a Window pattern.
2.  Set the controls :
Brightness
Minimum
Contrast
Minimum
Volume
Minimum
Confirm the following voltages:
TPD1
205
± 10V
TPD11
5    
± 0,5V
TPD2
137
± 2V
TPD12
3,3
± 0,1V
TPD3
42
± 2V
TPD13
2,5
± 0,1V
TPD5
42
± 2V
TPD14
3,3     ± 0,1V
TPD6
12,5
± 1V
TPD15
5    
± 0,5V
TPD7
-12,5 ± 1V
TPD16
5
± 0,5V
TPD8
30,5
± 1V
TPG3
7,5
± 0,5V
TPD9
9
±  1V
TPG5
300
± 10V
TPD10
8
± 0,5V
CUT OFF / Ug2 Test
1. Receive a Window pattern.
2. Normalize the TV set.
3. Set brightness: minimum.
To adjust Cutoff connect an oscilloscope to the Blue cathode. Adjust
the screen VR until the black level is 170V +0V/-5V. 
SELF CHECK
Self-check is used to automatically check the bus lines and hexadecimal code of the TV set.To enter Self-Check mode, press
the STATUS         button on the remote control and at the same time press the down (-/v) button on the customer controls at
the front the TV set. To exit Self Check, switch off the TV set at the power button.
If the CCU ports have been checked and found to be incorrect or not located then " - - " will appear in place of "O.K.".
4
E2
O.K.
DDP
O.K.
VSP
O.K.
AVSW
O.K.
TUN
O.K.
MSP
O.K.
DPL
---
MAS
---
SUM
****
 TX-32PS10D
TX-32PS10F
TX-32PS10D/B
TX-32PS10P
 TX-28PS10D
TX-28PS10F
TX-28PS10P
OPTION 1
0F
0F
OPTION 2
00
00
OPTION 3
B0
B0
OPTION 4
11
11
OPTION 5
00
00
OPTION 6
25
25
OPTION 7
7F
7F
OPTION 8
D0
50
OPTION 9
00
00
OPTION 10
80
80
OPTION 11
19
19
OPTION 12
00
00
OPTION 13
08
08
CHECK
E5
65
Black Level
170V+0V/-5V
GND
Page of 41
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  • Schematics, wiring and block diagrams.
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