Panasonic PV-20DF25

PV-20DF25/PV-20DF25-K/PV-27DF25/PV-27DF25-K/PV-27DF5
UHF/VHF TUNER/TV
DEMODULATOR UNIT
MAIN C.B.A.
RF
AUDIO SIGNAL
SIF
14
(TO IC6001(80))
A-SW CONTROL B
(TO IC6001(79))
A-SW CONTROL A
MTS/SAP
SIGNAL PROCESS
I
2
C
CONTROL
L-CH
R-CH
TP9002
TP9001
SWITCHING
CONTROL
(R CH)
(L CH)
TV
DVD
LINE2
LINE1
AMP
AMP
TV
LINE2
DVD
(INPUT SELECT)
(MTS/SAP SIGNAL PROCESS)
IC9001
(OP AMP)IC4351IC4301
21
27 24
29
30
2
4
1
3
5 7
13
13
15
11
12
9 10 6
5
LINE1
14
Q4303
Q4304
Q4353 Q4355
Q4352
Q4356
SPEAKER
L-CH
SPEAKER
R-CH
I
2
C
CONTROL
EARPHONE
JACK
P4501
1
P4502
1
IC4501
(AUDIO AMP)
IC4601
(TONE CONTROL)
AUDIO L-CH
CONTROL
AUDIO R-CH
CONTROL
19
20
14 15
11
12
(FROM IC6001(72))
I
2
C SERIAL DATA
(FROM IC6001(71))
I
2
C SERIAL CLOCK
P4801
2
P4801
4
DVD AUDIO
L-CH
FROM DVD II
BLOCK
DIAGRAM
DVD AUDIO
R-CH
P4502
2
P4501
2
(FROM IC6001(28))
AUDIO MUTE (H)
(FROM IC6001(12))
V CHIP MUTE (H)
D4353
D4354
2
4
8
12
AUDIO
IN-2
L-CH
AUDIO
IN-2
R-CH
IC4701(OP AMP)
3
5 7
1
AMP
AMP
J4703
J4702
NOT USED
AUDIO
IN-1
L-CH
AUDIO
IN-1
R-CH
IC9501(OP AMP)
3
5 7
1
AMP
AMP
MUTE-ON DRIVE
MUTE-ON
AUDIO OUT
L-CH
AUDIO OUT
R-CH
0.5 ms
V1
0.13 Vp-p
50 mV
AUDIO SIGNAL PATH BLOCK DIAGRAM
AUDIO SIGNAL PATH BLOCK DIAGRAM
PV-20DF25 / PV-27DF25 / PV-27DF5 / PV-20DF25-K / PV-27DF25-K
57