Read Panasonic TX-R20LA80 Service Manual online
Power Supply Block Diagram
F 800
SW 800
P1
1
1
4
LINE
FILTER LF 800
-
D801
~
IC800
M
A
IN
P
S
CONT
ROL
7 9
5
3
2
4
1
T8
0
0
12 10
PC801
PC802
8
P2
14
,13
,12
4
,6
Q802
7
IC840
6
5
F840
1
12V
24
V
4
3
Q843
INVERTER
A7
14
,13
,12
4
,6
Q873
A
U
D
9
V_16V
Q890
12V
8V
D875
D876
30V
IC881
24V
5V
LCF´S
VSUPDIG 3,3V
V
SUPDRI 3,
3V
V
SUPCOM 3,
3V
VSUPIO
1 3,
3V
V
SUPIO
3 3
,3V
V
SUPVO 3
,3V
V
SUPFE 3
,3V
V
SUPDA
C
3
,3V
V
SUPLVDS 3
,3V
IC862
STBY
3
.3V
IC861
STBY
1
.8V
V
SUPDIG 1.8V
V
SUPFE 1.8V
LCF´S
LCF
V
SUP
A
U
8V
IC1501
33
36
45,7
5
77
86
,96
,1
14
124
133,
15
0
164
169
,18
5
170
192
197
V
SUPSIF 5V
V
SUPDIG 3
,3V
VSUPDRI 3
,3V
VSUPCOM
3
,3
V
VSUPIO
1 3,
3V
VSUPDIG
1,8V
VSUPLVDS 3,3V
VSU
PDA
C3
,3
V
VSUPFE 1,8V
VSUPFE 3,3V
VSUPVO 3,3
V
V
SUPIO
3 3
,3V
A
U
D
IO VID
E
O
P
R
O
C
E
S
SOR
IC251
AUDIO
AM
P
5V
A
U
D9V_16V
TUNER TU001
30V
5V
IC1120
EE
PR
OM
7
5
8
STBY
3.3V
Q170
1
V
5
L
E
N
A
P
V
5
A6
42-45
24V
A8
5
V2
5
STBY
3.3V
RM1050
STBY
3.3V
Q800
LCF
VSUPSIF 5V
18
VSU
PA
U8
V
A2
1
SERVICE
STBY
3.3V
PROTECTION
ST
BY
3.3V
5V
8V
30V
MA
IN
I
N
P
–
BO
A
R
D
A
–
BOA
RD
V
–
BO
A
R
D
PANEL
13
TX-R20LA80
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