Panasonic PV-D4742 - Page 145

Q4001
LINE/TUNER
(AUDIO SIGNAL PROCESS)
AUDIO CONTROL / ERASE
HEAD UNIT
AUDIO
HEAD
PB
BIAS OSC
T4101,Q4101
AUDIO
ERASE
HEAD
FULL
ERASE
HEAD
FULL ERASE HEAD
REC-ON
MUTE REC
AMP
AGC
AGC DET
REC-OFF
Q4002
Q4003
+5V
69
57
61
IC3001
65
54 55
P4002
2
P4002
1
P4002
4
P4002
3
P4092
2
P4092
1
P4092
4
P4092
3
P4001
2
P4001
1
PIN
2
PIN
1
53
f H
TRAP
PB
AMP
9
48
3 1
1
21
10
61
53
59
57
14
15
3
1
36 62 42
43
27
30
22
24
21
2856 45
29
R-CH Hi-Fi AUDIO
SIGNAL PROCESS
ENV
DETECTOR
L-CH Hi-Fi AUDIO
SIGNAL PROCESS
+
+
(TO IC6001(29)) Hi-Fi PB(H)
(TO IC6001(82)) MTS MODE
(TO IC6001(20)) AUDIO DEFEAT(H)
Hi-Fi
Hi-Fi
NORMAL
NORMAL
(L-CH)
(L-CH)
(R-CH)
(R-CH)
TUNER
LINE1
LINE2
DVD
TUNER
LINE1
LINE2
DVD
I
2
C
CONTROL
(TO/FROM IC6001(17)) I
2
C SERIAL DATA
(FROM IC6001(18)) I
2
C SERIAL CLOCK
I
2
C
CONTROL
(FROM IC6001(57)) SW MUTE(H)
(TO IC3801 (3)) NORMAL AUDIO
(TO IC3801 (4)) PB AUDIO
(FROM IC6001(27)) Hi-Fi HEAD SW PULSE
(FROM IC6001(22)) AUDIO MUTE(H)
DRIVE
Q4004
Q4304
AUDIO
MUTE(H)
71 87 88
AUDIO
MUTE(H)
AUDIO
IN1 R-CH
AUDIO
IN1 L-CH
AUDIO
OUT1 L-CH
AUDIO
OUT1 R-CH
MTS/SAP
SIGNAL
PROCESS
SIF
AUDIO
4.5MHz
BPF
FL4901
UHF/VHF TUNER/TV DEMODULATOR UNIT
RF
MAIN C.B.A.
OPERATION
C.B.A.
CYLINDER UNIT
IC4201
(Hi-Fi AUDIO SIGNAL PROCESS)
IC4303
(OP AMP)
IC4304 (SW)
AGC
DET
L
R
Hi-Fi AUDIO
L HEAD
Hi-Fi AUDIO
R HEAD
AGC
AMP
REC
AMP
Q4005
Q4303
Q4302
Q4006Q4007 Q4008
Q4009
AUDIO
OUT2 R-CH
AUDIO
OUT2 L-CH
R
R
R
L
L
L
MUTE
MUTE
REC AUDIO SIGNAL PB AUDIO SIGNAL
AUDIO
IN 2 R-CH
(WITH ADVANCE)
AUDIO
IN 2 L-CH
MATRIX
MUTE
CONTROL
J4901
(FROM IC6001(26)) 3.58MHz
8
P3501
9
P3501
7
P3501
8
PIN
9
PIN
7
PIN
P6301
2
P3001
2
P3001
4
P6301
2
P6301
4
P6301
4
P6301
2
NOT USED
(FROM Q3011 COLLECTOR)
VCR(H)/DVD(L)
J4202
J4201
DVD AUDIO R-CH
DVD AUDIO L-CH
TP4002
TP4207
D4210
IC4301
DVD
VCR
DVD
VCR
E
(L-CH)
(R-CH)
13
12
3
5
4
14
6
5
3
7
1
11
9
(OUTPUT SELECT)
IC4302
(OP.AMP)
AMP
J4301J4306
J4302
(FROM IC6001(46))
DVD AUDIO SW(H)
DVD
VCR
DVD
VCR
J4305
J4103
AMP
+12V
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
4
14
1
7
3
5
11 9
5
12
3
13
AMP
AMP
FROM
DVD BLOCK
DIAGRAM
A
A
A
B
B
50mV
10 µs
V1
0.12 Vp-p
0.5 V
10 µs
V1
1.21 Vp-p
2 V
10 ms
V1
5.16 Vp-p
50 mV
10 µs
V1
0.14 Vp-p
0.5 V
10 µs
V1
1.12 Vp-p
20 mV
0.5 ms
V1
0.027 Vp-p
2 V
0.2 ms
V1
5.72 Vp-p
AUDIO SIGNAL PATH BLOCK DIAGRAM
AUDIO SIGNAL PATH BLOCK DIAGRAM
PV-D4742