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AUDIO SIGNAL PATH BLOCK DIAGRAM
MAIN C.B.A.
UHF/VHF TUNER/TV
DEMODULATOR UNIT
RF
SIF
14
DVD AUDIO
P4801
FROM DVD II
L-CH
4
BLOCK
DVD AUDIO
P4801
DIAGRAM
R-CH
2
J4703
J4702
IC4701(OP AMP)
AUDIO
IN-2
3
AMP
L-CH
AUDIO
5
AMP
IN-2
R-CH
NOT USED
IC9501(OP AMP)
AUDIO
IN-1
3
L-CH
AUDIO
5
IN-1
R-CH
IC9001
(MTS/SAP SIGNAL PROCESS)
TP9001
L-CH
30
MTS/SAP
21
SIGNAL PROCESS
R-CH
29
TP9002
I
2
C
CONTROL
V1
0.13 Vp-p
27
24
50 mV
0.5 ms
1
7
AMP
1
AMP
7
IC4301
(INPUT SELECT)
IC4351
(OP AMP)
TV
2
DVD
4
3
3
AMP
1
LINE2
1
Q4353
Q4355
LINE1
5
MUTE-ON
DRIVE
(L CH)
(R CH)
TV
15
DVD
11
13
5
AMP
7
LINE2
12
Q4352
LINE1
14
MUTE-ON
SWITCHING
CONTROL
9
10
6
57
PV-20DF25 / PV-27DF25 / PV-27DF5 / PV-20DF25-K / PV-27DF25-K
AUDIO SIGNAL
AUDIO OUT
L-CH
AUDIO OUT
R-CH
D4353
(FROM IC6001(28))
AUDIO MUTE (H)
D4354
(FROM IC6001(12))
Q4356
V CHIP MUTE (H)
P4501
1
IC4601
P4501
(TONE CONTROL)
2
IC4501
(AUDIO AMP)
AUDIO L-CH
11
20
2
12
CONTROL
AUDIO R-CH
12
19
4
8
CONTROL
2
I
C
CONTROL
P4502
2
14 15
P4502
1
Q4303
(TO IC6001(79))
A-SW CONTROL A
(TO IC6001(80))
A-SW CONTROL B
Q4304
(FROM IC6001(72))
I
2
C SERIAL DATA
(FROM IC6001(71))
2
I
C SERIAL CLOCK
AUDIO SIGNAL PATH BLOCK DIAGRAM
PV-20DF25/PV-20DF25-K/PV-27DF25/PV-27DF25-K/PV-27DF5
SPEAKER
L-CH
EARPHONE
JACK
SPEAKER
R-CH
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