Panasonic Omnivision PV-9661, Service Manual

Page: 322 / 407

9.3. AUDIO SIGNAL PATH BLOCK DIAGRAM
AUDIO
UHF/VHF TUNER/TV
DEMODULATOR UNIT
TUNER
LINE
AUDIO
IN 1
MAIN C.B.A.
(AUDIO PROCESS)
AUDIO CONTROL
HEAD UNIT
AUDIO
HEAD
PB
BIAS OSC
T4101, Q4101
AUDIO
ERASE
HEAD
FULL
ERASE HEAD
FULL ERASE HEAD UNIT
REC-ON
LOADING MOTOR
P.C.B.
RF
AUDIO
OUT
AUDIO
REC AUDIO SIGNAL PB AUDIO SIGNAL
AUDIO
MUTE(H)
(FROM IC6001(6))
AUDIO MUTE(H)
MUTE
REC
AMP
PB
AMP
LINE
AMP
AGC
AGC DET REC-OFF
Q4001
Q4002
Q4003
J4002
(WITHOUT Hi-Fi AUDIO)
R4018 C4018
(TO IC4201(62))
NORMAL AUDIO
(FROM IC4201(61))
NORMAL AUDIO
(WITH Hi-Fi AUDIO)
(WITHOUT Hi-Fi AUDIO)
J4001
J4003
R4013
(TO IC3801(3))
AUDIO
(WITH ADVANCE)
Q4006 Q4004
LINE1
LINE2
IC4151
(FROM IC6001(19))
INPUT SELECT 2
(WITH FRONT A/V JACK
/WITHOUT Hi-Fi AUDIO )
(WITHOUT FRONT A/V JACK
/WITHOUT Hi-Fi AUDIO )
DRIVE
+5V
14 1
71
73
60
65
IC3001
69 75
57 58
8 7
2
I C
CONTROL
P6002
6
P6002
5
P6002
3
P6002
4
P2552
6
P2552
5
P2552
3
P2552
4
P2551
4
P2551
3
P2551
1
P2551
2
P1541
4
P1541
3
P1541
1
P1541
2
P4001
2
P4001
1
PIN
2
PIN
1
56
14
11
12
13
(TO/FROM IC6001(17))
I C SERIAL DATA
2
(FROM IC6001(18))
I C SERIAL CLOCK
2
NOT USED
NOT USED
NOT USED
NOT USED
AUDIO
IN 2
P6321
2
OPERATION I C.B.A.
P6301
2
AUDIO
IN 2
P6320
1
OPERATION I C.B.A.
P6302
1
PV-9661 / PV-9662
73