Av-S70 Block Diagram - Yamaha AV-S70 Service Manual

AV-S70/NX-SW70

AV-S70 BLOCK DIAGRAM (1/2)

1
L
12
L 3
INPUT 1
(AUX)
R
5
L
14
INPUT 2 R 13
(TV)
R
B
2 9
L
A
15
INPUT 3 10
(VIDEO)
R
Q101
Q106
MUTE
Q102
Q107
L
THROU
R
P–ON
MUTE
Q103
LOGIC IC2
Q104
74HC02
6
LOGIC IC801 7
74HCU04FP
4
CD0/CCK
2
CLD
1 4
DIGITAL
CB2 4
6
1
CN601
3
ML
IC603
UPC4570G2
FROM
CN102
MR
5
RL
MUTE
CN604 1
RR
UPC4570G2
3
LFE
IC602
MUTE
CN604 1
21
3 1
IC102
5 7
IC102
RIN–
6 7 6 7 RIN+
IC8 IC9
LIN–
2 1 2 1 LIN+
IC8 IC9
DIR IC3
YM3436DK
ADOUT
1
1
37
DATA 3
BC 7
DSP–MASTER CLOCK/DATA
WC 8
256FS 9
6
LOCKN
PLL CONT
Q1/Q2
CB2 9
45
DSP–IC
IC4 YSS908F
46
47
CB2 11 17
DSP CONTROL SIGNAL
IC604
UPD4066BF
9 3 1
8 IC605 1
10
1
11
TRUBASS 18
CN505
1
1
7
5 7
2
IC605
4 2
3
UPC4570G2
5 6 12 13
Q606
NIGHT
Q607
CN604 11
3 1
Q601
IC601
UPC4570G2
Q602
5 7
IC601
UPC4570G2
5
1
IC602
Q603
SELECTOR IC
IC103 LC78212
1 4
(30) (27)
6 (2) 7 (1)
2
(29)
IC10
3
M5220FP
(28)
21
12 L
5
(26)
13 R 22
6
11 (25)
10 7 8
(24) (23)
36
6 7 9
CT 25
(22)
IC11
M5220FP
10 11
(20)
(21)
13 14 15
CN105
32
2 1
LFE 26
IC11 IC12
33
M5220FP M5220FP
6 7
RL 23
34
IC12
M5220FP
2 1
RR 24
Page 37
1
19 IC501
Q501
MUTE
CN501
3
Q502
1
IC502
20
CN602
YF51–5001
MUTE
CN604
2
4 5
1 8 3
6 7
SP–RY
CN604
SW–POWER
CN604 6
7
Q604 BASS BOOST
CN604 10
CN603
LFE OUT
(SUBWOOFER)
PRE–OUT
CN604
7
SIGNAL
SENSOR
L : 10 mV
M–SENSOR M : 5 mV
H : 3mV
CN105 4
IC107
5
ML
4 3
7
MR
25
26
6
M5220FP
LFE
L : IC104
20
R : IC105
RL
6
RR
23
3
1
2 M5220FP
L : IC104
R : IC105
6 8
19 LFE
7 RL
14 DATA
15 CLK
22 RR
16
STB
CN105 7 9
Page 36
4
SPEAKER
DC SIGNAL DETECT
Q503/Q504
4
SPEAKER
AMP–PRT
CN501 5
1
Q505
SW–PRT
CN604 5
SP–RY
CN501
6
4
Page 39
GO TO CN601
*WOOFER P. C.B.
*POWER AMP
LCH
RCH