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MAIN SIGNAL PATH IN REC MODE MAIN SIGNAL PATH IN PLAYBACK MODE
IC4501
JK4903
(AV1) TW4907
TV
42 SYS IIC CLOCK TO/FROM
QR4502 IIC BUS
INTERFACE SYSTEM
1 AUDIO OUT (R) MUTE 53 43 SYS IIC DATA CONTROL
TW4903
2 AUDIO IN (R)
QR4501
3 AUDIO OUT (L) MUTE 57
TW4902
6 AUDIO IN (L)
9
10 INPUT
SELECT
SWITCH
RCH
AGC
TW4901 &
SWITCH
14 FROM
VCO 45 FSC LUMINANCE &
INPUT F0 CHROMINANCE
15
SELECT
SWITCH
(C/D) LCH
JK4902
(AV2)
DECODER/EXT
QR4503 OUTPUT
1 AUDIO OUT (R) MUTE 51 SWITCH SELECT
RCH SWITCH
RCH
2 AUDIO IN (R) +
QR4504
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
LPF FROM
TO RFC AUDIO OUT 59 PB 60Hz SYSTEM
TUNER H
PNR LCH CONTROL
BPF
QR7604 FROM
30 D.FM REC L SYSTEM
TUNER AUDIO (R) MUTE 8 CONTROL
FROM BPF
DECODER QR7603
TUNER AUDIO (L) MUTE 13 PREAMP
& 29
SWITCH
P3502
24
8 L
P3502 Hi-Fi
IC3001 + AGC 21
9
AUDIO
HEAD
P3502 R
22
QR4004 10
SW 78 MUTE 62
GAIN
LPF
QR7601
FROM
DECODER/ TUNER AUDIO (N) MUTE 75
TV DEMODU
FM MODULATOR/
DEMODULATOR
71
A.HEAD (W) 2 ALC NORMAL
73 61 SELECT
SWITCH
TO/FROM 8 AGC
AC HEAD &
SWITCH
A.HEAD (R) 4 7