Panasonic TX-28PK25 Service Manual ▷ View online
Description
Cct Ref
Parts Number
Description
Cct Ref
Parts Number
ELECT
C1613
ECJ2VB1H152K
50V
1.5nF
CERAMIC
C1614
ECJ2VB1H473K
50V
47nF
CERAMIC
C1615
ECJ2VB1C224K
16V
220nF
ELECT
C1616
ECJ2VB1H152K
50V
1.5nF
CERAMIC
C1617
ECJ2VB1H391K
50V
390µF
CERAMIC
C1620
ECJ2VB1H391K
50V
390µF
ELECT
C1621
ECJ2VB1H152K
50V
1.5nF
CERAMIC
C1622
ECJ2VB1H223K
50V
22nF
CERAMIC
C1623
ECJ2VB1H391K
50V
390µF
FILM
C1900
ECQB1H153K
50V
15nF
S.M. CAP
C1901
ECUV1H103KBX
50V
10nF
ELECT
C1903
ECA1EM470GB
25V
47µF
FILM
C1904
ECQB1H104J
50V
100nF
FILM
C1905
ECQB1H104J
50V
100nF
FILM
C1906
ECQE2A474MWB
250V
470nF
FILM
C1907
ECQE2A474MWB
250V
470nF
S.M. CAP
C1909
ECUV1H103KBX
50V
10nF
S.M. CAP
C2101
ECUV1H102JCX
50V
1nF
S.M. CAP
C2102
ECUV1H102JCX
50V
1nF
S.M. CAP
C2103
ECUV1H102JCX
50V
1nF
S.M. CAP
C2104
ECUV1H102JCX
50V
1nF
S.M. CAP
C2105
ECUV1H102JCX
50V
1nF
S.M. CAP
C2106
ECUV1H102JCX
50V
1nF
S.M. CAP
C2107
ECUV1H102JCX
50V
1nF
S.M. CAP
C2108
ECUV1H102JCX
50V
1nF
S.M. CAP
C2109
ECUV1H102JCX
50V
1nF
S.M. CAP
C2110
ECUV1H102JCX
50V
1nF
ELECT
C2111
ECA1CM100GB
16V
10µF
ELECT
C2112
ECA1CM100GB
16V
10µF
ELECT
C2113
ECA1HM3R3GB
50V
3.3µF
CERAMIC
C2114
ECJ2VF1H104Z
50V
100nF
S.M. CAP
C2115
ECUV1H221JCX
50V
220pF
S.M. CAP
C2116
ECUV1H221JCX
50V
220pF
S.M. CAP
C2117
ECUV1H221JCX
50V
220pF
S.M. CAP
C2118
ECUV1H221JCX
50V
220pF
S.M. CAP
C2119
ECUV1H221JCX
50V
220pF
S.M. CAP
C2120
ECUV1H221JCX
50V
220pF
ELECT
C2121
ECA1CM100GB
16V
10µF
CERAMIC
C2122
ECJ2VF1H104Z
50V
100nF
S.M. CAP
C2123
ECUV1H221JCX
50V
220pF
S.M. CAP
C2124
ECUV1H560JCX
50V
56pF
S.M. CAP
C2125
ECUV1H470JCX
50V
47pF
S.M. CAP
C2126
ECUV1H560JCX
50V
56pF
S.M. CAP
C2127
ECUV1H010CCX
50V
1pF
S.M. CAP
C2128
ECUV1H010CCX
50V
1pF
ELECT
C2129
ECA1CM102B
16V
1000µF
ELECT
C2130
ECA1CM331B
16V
330µF
CERAMIC
C2134
ECJ2VF1H103Z
50V
10nF
ELECT
C2135
ECA1HM101GB
50V
100µF
CERAMIC
C2136
ECJ2VF1H104Z
50V
100nF
ELECT
C2137
ECA1CM100GB
16V
10µF
S.M. CAP
C2138
ECUV1H471KBX
50V
470pF
S.M. CAP
C2139
ECUV1H221JCX
50V
220pF
ELECT
C2140
ECA1HM101GB
50V
100µF
CERAMIC
C2141
ECJ2VC1H152J
50V
1,5nF
CERAMIC
C2200
ECJ2VB1H562K
50V
5.6nF
ELECT
C2201
ECA1HM100GB
50V
10µF
ELECT
C2202
ECA0JM101G
6.3V
100µF
CERAMIC
C2203
ECJ2VB1H153K
50V
15nF
ELECT
C2204
ECA1CM470GB
16V
47µF
CERAMIC
C2205
ECJ2VB1H562K
50V
5.6nF
ELECT
C2206
ECA1HM2R2GB
50V
2.2µF
S.M. CAP
C2207
ECUV1H103KBX
50V
10nF
S.M. CAP
C2208
ECUV1H683KBX
50V
68nF
CERAMIC
C2209
ECJ2VC1H681J
50V
680pF
CERAMIC
C2211
ECJ2VB1C104K
16V
100nF
CERAMIC
C2212
ECJ2VB1C104K
16V
100nF
CERAMIC
C2213
ECJ2YB1H473K
50V
47nF
S.M. CAP
C2215
ECUV1H103KBX
50V
10nF
CERAMIC
C2216
ECJ2VC1H121J
50V
120pF
CERAMIC
C2217
ECJ2YB1H473K
50V
47nF
CERAMIC
C2218
ECJ2VB1H153K
50V
15nF
CERAMIC
C2220
ECJ2VB1H562K
50V
5.6nF
ELECT
C2221
ECA1HM100GB
50V
10µF
ELECT
C2222
ECA0JM101G
6.3V
100µF
CERAMIC
C2225
ECJ2VB1H562K
50V
5.6nF
ELECT
C2226
ECA1HM2R2GB
50V
2.2µF
S.M. CAP
C2227
ECUV1H103KBX
50V
10nF
S.M. CAP
C2228
ECUV1H683KBX
50V
68nF
CERAMIC
C2229
ECJ2VC1H681J
50V
680pF
CERAMIC
C2231
ECJ2VB1C104K
16V
100nF
CERAMIC
C2232
ECJ2VB1C104K
16V
100nF
S.M. CAP
C2235
ECUV1H103KBX
50V
10nF
CERAMIC
C2236
ECJ2VC1H121J
50V
120pF
ELECT
C2240
ECA1CM471GB
16V
470µF
CERAMIC
C2301
ECJ2VC1H222J
50V
2.2nF
ELECT
C2302
ECA1CM470GB
16V
47µF
CERAMIC
C2303
ECJ2VC1H222J
50V
2.2nF
ELECT
C2304
ECA1CM470GB
16V
47µF
CERAMIC
C3001
ECJ2VC1H222J
50V
2.2nF
CERAMIC
C3002
ECJ2VC1H222J
50V
2.2nF
ELECT
C3003
ECA1CM470GB
16V
47µF
S.M. CAP
C3005
ECUV1H561JCX
50V
560pF
CERAMIC
C3006
ECJ3VB1C474K
16V
470nF
CERAMIC
C3007
ECJ2VC1H222J
50V
2.2nF
CERAMIC
C3008
ECJ2VC1H222J
50V
2.2nF
CERAMIC
C3009
ECJ2VC1H222J
50V
2.2nF
ELECT
C3010
ECA1CM470GB
16V
47µF
S.M. CAP
C3012
ECUV1H561JCX
50V
560pF
CERAMIC
C3013
ECJ3VB1C474K
16V
470nF
CERAMIC
C3014
ECJ2VC1H222J
50V
2.2nF
CERAMIC
C3015
ECJ2VC1H222J
50V
2.2nF
CERAMIC
C3016
ECJ2VC1H222J
50V
2.2nF
ELECT
C3017
ECA1CM470GB
16V
47µF
S.M. CAP
C3019
ECUV1H561JCX
50V
560pF
CERAMIC
C3020
ECJ3VB1C474K
16V
470nF
CERAMIC
C3021
ECJ2VC1H222J
50V
2.2nF
CERAMIC
C3022
ECJ2VC1H222J
50V
2.2nF
CERAMIC
C3023
ECJ2VC1H222J
50V
2.2nF
ELECT
C3024
ECA1CM470GB
16V
47µF
S.M. CAP
C3026
ECUV1H561JCX
50V
560pF
CERAMIC
C3027
ECJ3VB1C474K
16V
470nF
CERAMIC
C3028
ECJ2VC1H222J
50V
2.2nF
S.M. CAP
C3030
ECUV1H271JCX
50V
270pF
S.M. CAP
C3031
ECUV1H271JCX
50V
270pF
S.M. CAP
C3032
ECUV1H271JCX
50V
270pF
S.M. CAP
C3111
ECUV1H391JCX
50V
390pF
S.M. CAP
C3201
ECUV1H103KBX
50V
10nF
S.M. CAP
C3202
ECUV1H103KBX
50V
10nF
S.M. CAP
C3203
ECUV1H561JCX
50V
560pF
S.M. CAP
C3204
ECUV1H561JCX
50V
560pF
ELECT
C3205
ECA1HM470GB
50V
47µF
S.M. CAP
C3206
ECUV1H561JCX
50V
560pF
S.M. CAP
C3207
ECUV1H561JCX
50V
560pF
ELECT
C3208
ECA1HM470GB
50V
47µF
S.M. CAP
C3209
ECUV1H103KBX
50V
10nF
CERAMIC
C3210
ECJ2VB1C104K
16V
100nF
S.M. CAP
C3211
ECUV1H103KBX
50V
10nF
S.M. CAP
C3212
ECUV1H103KBX
50V
10nF
S.M. CAP
C3213
ECUV1H103KBX
50V
10nF
CERAMIC
C3214
ECJ2VB1C104K
16V
100nF
S.M. CAP
C3215
ECUV1H103KBX
50V
10nF
21
Description
Cct Ref
Parts Number
Description
Cct Ref
Parts Number
S.M. CAP
C3213
ECUV1H103KBX
50V
10nF
CERAMIC
C3214
ECJ2VB1C104K
16V
100nF
S.M. CAP
C3215
ECUV1H103KBX
50V
10nF
ELECT
C3216
ECA1CM330GB
16V
33pF
CERAMIC
C3217
ECJ2VB1C104K
16V
100nF
ELECT
C3221
ECA1CM221GB
16V
220µF
ELECT
C3351
ECA1CM221GB
16V
220µF
TERMINALS AND LINKS
CRT SOCKET
JK381
TJS1A5230B
RCA SOCKET
JK2301
JPJ841101320
SCART SOCKET
JK3001
0350808500
AV TERMINAL
JK3201
TJB8E026
SWITCHES
SWITCH
S802
ESB92S11B
SWITCH
S1251
EVQ21405R
SWITCH
S1252
EVQ21405R
SWITCH
S1253
EVQ21405R
SWITCH
S1254
EVQ21405R
SWITCH
S1255
EVQ21405R
RELAYS
RELAY
RL801
DLS12D1-OM
22
23
NOTES
SCHEMATIC DIAGRAMS FOR MODELS
TX-28PK25
(EURO-4H CHASSIS)
NOTE
1. RESISTOR
All resistors are carbon ¼W resistor, unless marked otherwise.
Unit of resistance is OHM (
Unit of resistance is OHM (
Ω
) (k=1,000, M=1,000,000)
2. CAPACITORS
All capacitors are ceramic 50V unless marked otherwise.
Unit of capacitance is
Unit of capacitance is
µ
F unless otherwise stated.
3. COIL
Unit of inductance is
µ
H, unless otherwise stated.
4. TEST POINT
Test Point Position
5. EARTH
SYMBOL
Chassis Earth (Cold)
Line Earth (Hot)
6. VOLTAGE
MEASUREMENT
Voltage is measured by a d.c. voltmeter.
Measurement conditions are as follows:
Power source
Measurement conditions are as follows:
Power source
a.c. 220V-240V, 50Hz
Receiving Signal
Colour Bar signal (RF)
All customer controls
Maximum position
7.
Indicates the Video signal path
Indicates the Audio signal path
These schematic diagrams are the latest at time of printing and are subject to change without notice.
REMARKS
a. Do not touch the hot part, or the hot and cold parts at the same time, as you are liable to a shock hazard.
b. Do not short circuit the hot and cold circuits as electrical components may be damaged.
c.
Do not connect an instrument, such as an oscilloscope, to the hot and cold circuits simultaneously as this may cause
fuse failure. Connect the earth of the instruments to the earth connection of the circuit being measured.
fuse failure. Connect the earth of the instruments to the earth connection of the circuit being measured.
d. Make sure to disconnect the power plug before removing the chassis.
NOTE
1. The Power Supply Circuit contains a circuit area, which uses a separate power supply to isolate the earth connection.
The circuit is defined by HOT and COLD indications in the schematic diagram. All circuits, except the Power Circuit, are
COLD.
COLD.
IMPORTANT SAFETY NOTICE
Components identified by
mark have special characteristics
important for safety. When replacing any of these components, use
only manufacturers' specified parts.
only manufacturers' specified parts.
24
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