JVC HX-Z1R Service Manual page 32

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HX-Z1R
BH3874AKS (IC434) : Audio sound processor
1. Pin layout
48 ~ 33
49 32
~ ~
64 17
1 ~ 16
2. Block diagram
53 55 56
-9dB
INLD 47
INLC 45
11dB
INLB 43
+
+
-
INLA 41
+
19dB
+
-
11dB
+
+
-
+
INRA 42
INRB 44
INRC 46
INRD 48
-9dB
RECR 52
+
-
22K
40
1-32
51 61 62 59
0~30dB
+
10K
- +
L-R
+
-
+
+
L+R
+
10K
+
10.5Hz
DET
10.5Hz
DET
10.5Hz
DET
10.5Hz
DET
10.5Hz
DET
36 37 38 39 1 2 5 6 9 10 13 14 16
Digitized in Heiloo Netherlands
60 57 58 63 64 3 4 7 8 11 12 15
-30dB~-
+
+
+
5 BAND EQ
5 BAND EQ
-
+
+
MPX
17 18 19 23 24 25 26
Vcc
1
-
Vcc
2
+
HPP
+ +
-
+ VCA
FILTER
+
+
-
HPP
DIGITAL
CONTROL
ALC
20 21 22 50 49
3/29/2018
30 VCC
28 FILTER
54 GND
32 OUTL
27 BASS5
29 CAP
31 OUTR
35 SCK
34 SI
33 STEPC