Read Panasonic TX-28PG45 Service Manual online
POWER SUPPLY BLOCK DIAGRAM
10
K3
1
4
K2
1
3
F801
S840
D20
1
3
D5
1
2
Degauss
Circuit
T841
5
10
2
IC841
5
Degauss
Coil
Mains
In
T801
IC801
4
3
3
3
2
8
600V
14V
6
5
D3 1 2 3 4 7 8
D1 1 2 11 12 13 14 15 16
11
12
12
18
17
13
13
+20V
-20V
140V +B2
140V +B2
140V +B2
14.5V
600V
376V
IC851
1
T551
9
10
6
D9
5
6
12
H - DY
D8
8
2
8
D6 1 3
5
4
1
L3
1 3
5
IC351
6
2
IC352
6
2
IC353
6
2
VM
Circuit
CRT
L1
1
A21
1
A3 1 2 3 4 7 8
A1 1 2 11 12 13 14 15 16
IC3302
3
1
4
IC4801
IC2709
1
2
IC2705
2
1
IC2706
2
1
IC2707
3
1
IC2708
1
2
IC1251
5
3
4
IC1252
1
2
IC1108
1
2
2
1
24
IC2301
4
22
IC451
1
2
5
6
IC459
11
16
IC051
1
3
IC2307
4
IC2306
4
IC2303
4
IC3001
42
IC4802
7
IC1315
27
16
30
28
44
IC501
8
IC2001
11 12 13 65 66 80 39
IC3003
8
IC1253
11 13 20 21 22
IC1107
20
IC1105
2
1
1
IC3002
12
IC2302
4
5
IC1254
8
IC1104
5
IC1109
K1
1
A6
1
A1102
1
30
27
28
14
15
16
U2
1
30
27
28
14
15
16
A44
32
36
35
34
33
37
38
23
27
DG01
TO
DG70
32
36
35
34
33
37
38
23
27
Tuner
Tuner
VCC
RM1011
A1101
20
U1
20
20
CVBS
Switch
Circuit
Circuit
IC1101
14
IC1106
IC1102
IC1111
32 42 53 61 69 85 106
21 87 111116 119 123
94
1
7
13 25 38 44
37 47
5
IC1110
4
A20
1
3
V - DY
K - Board
D - Board
L - Board
A - Board
DG - Board
U - Board
K - Board
376V
7.5V
600V
376V
140V +B2
+15.5V
-15.5V
Heater
220V
1300V
140V
220V
12V
12V
Heater
15V
3.3V
-20V
+20V
7.5V
-15.5V
+15.5V
9V
5V STBY
5V STBY
30V
5V
9V
2.5V
5V Det
8V
H - Daf
V - Daf
5V
3.3V
9V
9V
5V
3.3V
3.3V
9V
2.5V
3.3V
5V Det
7.5V
3
D2 6 7 8 9 10 15 16
A2 6 7 8 9 10 15 16
ACL
EHT
EHT
Monitor
Circuit
MODEL DEPENDANT
MODEL DEPENDANT
MODEL DEPENDANT
10
D802
JK351
PIN10
A10
1
2
VOUT(A)
VOUT(B)
IC1311
1
2
IC1314
8
IC1307
1
2
IC1310
8
7
1
58
IC1301
185 190193
201
196
206
70
78
78
IC1306
1
2
166 164 147
130
144
117108 95
33
23
11
23
11
2
IC1316
160158
154
157
149
20
40
40
97 100 107
120
119
136138 140
66
75
80
75
80
49
57
57
9
IC1305
102122141
18
20
20
101 90 88
80
84
65 61 59
43
49
52
52
21
28
55
18
IC1303
207
28
202 196192
172
176
168161 150
117
129
135
129
135
61
109
138
7
38
71
89
89
98
IC1309
1
2
58
IC1304
185 190193
201
196
206
70
78
78
166
179
147
130
144
117108 95
33
23
11
11
160
Q1327
IC1312
8
Q1328
84
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