74
XR-A880, XR-A770
+
TAPE
DECK
TAPE
DECK
PB
TAPE
DECK
FUNCTION
TUNER
MODULE
PROLOGIC
LV1035M
CD
$ MECH
AUX
(200mV)
(-3.8dB)
(-2dB)
(-8dB)
(+2dB)
(-6dB)
-
+
-
+
-
+
5
+
-
+
+
HA12211NT
HA12136AF
DOLBY NR
Vref
Vref
19
14
11
4
+
-
Vref
Vref
BASS
BLASTER
REAR CENTER
TRIM : -10dB
To R ch
From R ch
IC3001
DUMMY
LC75396
ZOOM
SURROUND
BASS
BLASTER
BASS
TREBLE
53
55
52
54
50
49
45
46
48
47
35
45
24
22
VR2305
-
+
Vref
E
IC3701
N
Q2301
E
IC2301
E
IC2201
E
E
A
B
7.3 BLOCK DIAGRAM