Marantz CC-4001, Service Manual

Page: 27 / 47

35
INTER-
FACE
F R
INTER-
FACE
INTER-
FACE
REGULATOR
T. S. D
MONITOR
THERMAL
SHUTDOWN
LEVEL
SHIFT
F R
F R
P
OW
V
CC
PreV
CC
P
OW
V
CC
P
OW
V
CC
50k
50k
50k
50k
R
R
F
10k
10k
19k
100
10k
MUTE
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
25 24 23 22 21 20 32 31 30 29 28 27 26 19 18 17
F
Vref
D D D D
F
R
D D D D
+ -
+ -
417-KC220-045 IC(LA6531-E,DIP16F)
IC105 :
Gain = 12 dB
OUT2 OUT3
OUT1
OUT4
Buffer IN
Buffer
Amp
Buffer OUT
10 k
Ω
10 k
Ω
8
Ω
GND
GND
22 k
Ω
22 k
Ω
11 k
Ω
11 k
Ω
11 k
Ω
11 k
Ω
2 2
1 1
VIN1
VIN1
8
Ω
VIN2
VIN2
VCC
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
+
+
-
-
IC106 :
417-DCM280-596
BA5979S