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MAIN SIGNAL PATH IN REC MODE MAIN SIGNAL PATH IN PLAYBACK MODE
IC4501
JK4902
(AV1) TW4504
TV
42 MAIN IIC CLOCK TO/FROM
QR4504 IIC BUS
INTERFACE SYSTEM
1 AUDIO OUT (R) MUTE 53 43 MAIN IIC DATA CONTROL
TW4503
2 AUDIO IN (R)
QR4504
3 AUDIO OUT (L) MUTE 57
TW4506
6 AUDIO IN (L)
9
10 INPUT
SELECT
(A/B/C/D) SWITCH
RCH
JK4904
AUDIO AGC
OUT (R) TW4505 &
SWITCH
14 FROM
AUDIO VCO 45 FSC LUMINANCE &
OUT (L) INPUT F0 CHROMINANCE
15
SELECT
SWITCH
LCH
JK4901
(AV2)
DECODER/EXT
QR4503 OUTPUT
1 AUDIO OUT (R) MUTE 51 SWITCH SELECT
RCH SWITCH
RCH
2 AUDIO IN (R) +
QR4503
TW4511
3 AUDIO OUT (L) MUTE 52 SWITCH
LCH
PNR RCH FROM
6 AUDIO IN (L) 27 AUDIO H.SW SYSTEM
CONTROL
FM MODULATOR/
OUTPUT DEMODULATOR
SELECT
SWITCH
LCH
QR4507
LPF
TO RFC AUDIO OUT MUTE 59
TUNER
PNR LCH
BPF
FROM
30 D.FM REC H SYSTEM
TUNER AUDIO (R) 8 CONTROL
FROM BPF
DECODER
TUNER AUDIO (L) 13 PREAMP TW4502
& 29
SWITCH TW4501
P5001
24
8 L
P5001 Hi-Fi
IC3001 + AGC 21
9
AUDIO
HEAD
P5001 R
22
10
MUTE 6 62
LPF
FROM TUNER AUDIO (N) 1
DECODER
FM MODULATOR/
DEMODULATOR
R
P4002 REC NORMAL
A.HEAD (W) 98 EQ MUTE VCA 2 61 SELECT
4 SWITCH
TO/FROM P AGC FROM
& MUTE 36 MUTE H SYSTEM
AC HEAD CTL
SWITCH CONTROL
P4002 PRE fh MUTE 79
A.HEAD (R) 96 AMP TRAP CTL
3
NV-HV65EC,
HV60EB/EBL/EC/EP,
HV55EC,HV50EC
AUDIO BLOCK DIAGRAM