Panasonic PV-DF204 Service Manual page 165

Hi-Fi AUDIO SIGNAL PATH BLOCK DIAGRAM
POWER SUPPLY C.B.A. MAIN C.B.A.
UHF/VHF TUNER/TV
DEMODULATOR UNIT
Q7021
P9501 P4004
RF SIF
14 BUFFER
2 2
(WITH REAR A/V INPUT JACK)
IC9501
(OP AMP)
P9501 P4004
AUDIO
5 AMP 7
IN-1 R-CH 9 9
P9501 P4004
AUDIO
3 AMP 1
IN-1 L-CH 11 11
J9503
J9504
NOT USED
AUDIO
P7002 P4003
OUT R-CH
5 5
P7002 P4003
AUDIO
OUT L-CH 3 3
OPERATION C.B.A.
IC4701 (OP AMP)
P4701 P4005
AUDIO
5 AMP 7
IN-2 R-CH 7 7
P4701 P4005
AUDIO
3 AMP 1
IN-2 L-CH 5 5
J4702
J4705
NOT USED
P4801
DVD AUDIO R-CH
15
FROM DVD II
P4801
BLOCK DIAGRAM
DVD AUDIO L-CH
13
5
AUDIO C.B.A.
PIN P4202
5 5
PIN P4203
7 7
PIN P4203
9 9
PIN P4207
39 39
PIN P4207
41 41
Q4006 Q4005
MUTE MUTE
-ON -ON
DRIVE DRIVE
Q4004 Q4003
PIN P4207
35 35
PIN P4207
37 37
TO/FROM
AUDIO SIGNAL
NORMAL AUDIO
PATH
NORMAL AUDIO
BLOCK
Hi-Fi MUTE(H)
DIAGRAM
PIN P4205
23 23
PIN P4205
25 25
IC4301 (SW)
(R-CH)
5
3
(L-CH)
12
13
D4304
Q4305 Q4304
D4303
(FROM IC6001(12))
SW.
6
V-CHIP MUTE(H)
CONTROL
9
Q4303
(FROM IC6001(75))
DVD AUDIO(H)
SW+12V
REC AUDIO SIGNAL
Q4251
NOT USED
AMP
J4252
FROM VIDEO SIGNAL
3.58MHz
PATH BLOCK DIAGRAM
(TO IC6001(10)) MTS MODE
(TO IC6001(22)) AUDIO DEFEAT(H)
D4210
IC4201 (TO IC6001(93)) Hi-Fi PB(H)
(Hi-Fi AUDIO SIGNAL PROCESS)
56 45 28
48 MTS/SAP SIGNAL PROCESS
MUTE ENV
MATRIX
CONTROL DETECTOR
TUNER
LINE1
(R-CH)
9 R-CH Hi-Fi
+
LINE2
AUDIO SIGNAL
10
DVD
PROCESS
1
61
MUTE
(R-CH) Hi-Fi
R
53
L
NORMAL
R
MUTE
(L-CH) LIM.
L NORMAL
57
L
Hi-Fi
R
L-CH Hi-Fi
AUDIO SIGNAL
TUNER
PROCESS
LINE1
14
LINE2
15
DVD (L-CH)
3
AUDIO I 2 C CONTROL
MUTE(H)
62 36 42 43 27
IC4601
IC4302 (OP AMP)
(AUDIO SOUND PROCESSOR)
AUDIO R-CH
AMP
4 3 1 12
SOUND PROCESSOR
14 5 AMP 7
AUDIO L-CH
11
SOUND PROCESSOR
Q4306
2
I C
MUTE
CONTROL
-ON
10 11
14 15
Q4307
MUTE
NOT USED -ON
PB AUDIO SIGNAL
Hi-Fi AUDIO/VIDEO HEAD AMP C.B.A.
IC4401
(Hi-Fi AUDIO HEAD AMP)
AGC
DET
TP4205
P4204 PIN P3001 P3501 AGC REC
29 13
AMP AMP
14 15 13 13
PRE
TP4207
AMP
R
P4204 PIN P3001 P3501
30 14
12 12 15 15
L
PRE
AMP
1 16
(FROM IC6001(19)) Hi-Fi HEAD SW PULSE
(TO/FROM IC6001(72)) I 2 C SERIAL DATA
2
(FROM IC6001(71)) I C SERIAL CLOCK
OPERATION C.B.A.
IC4501 (AUDIO AMP)
P4503 P4591
5 5
P4503 P4591
19 4 8
4 4
P4503 P4591
20 2 12
2 2
P4503 P4591
3 3
1
NOT USED
(FROM IC6001(61))
Q4501
SPEAKER MUTE(H)
(TO/FROM IC6001(72)) I 2 C SERIAL DATA
2
(FROM IC6001(71)) I C SERIAL CLOCK
Hi-Fi AUDIO SIGNAL PATH BLOCK DIAGRAM
PV-DF204/PV-DF2004/PV-DF2004-K/PV-DF274/PV-DF2704/PV-DF2704-K
7
PIN
Hi-Fi
5
9
AUDIO
PIN
R HEAD
8 Hi-Fi
AUDIO
PIN
3 L HEAD
7
(FROM IC6001(29))
Hi-Fi DELAY REC(H)
(FROM IC6001(27))
Hi-Fi HEAD SW
P4502
SPEAKER
1
R-CH
P4502
2
EARPHONE
JACK
P4501
2 SPEAKER
L-CH
P4501
1