Sony HCD-RV222 Service Manual page 51

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• IC BLOCK DIAGRAMS
TE
L 13942296513
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IC103 CXA2581N-T4 (BD49 BOARD)
DVC
–
+
VC
VC
LD 1
PD 2 APC AMP
EQ IN 3
RFAC
AC SUM 4 SUMMING
AMP
GND 5
B C D
A
A
A 6
B
B 7
C
C 8
D
D 9
E 10 GM
F 11
GM
APC-OFF
(Hi-Z)
SW 12
RW/ROM
(H/L)
DVCC 13
DVC
DVC 14
RFAC 15
IC701 BA6956AN (DRIVER BOARD)
IC712 BA6956AN (DRIVER BOARD)
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2 9
8
RW/ROM
A
–
B
+
C
DVC
D
DVC
VCC
RW/ROM
VOFST
EQ ON/OFF
RW/ROM
VOFST
B
C
–
A
+
D
DVC
VC
Q Q
3 6 7 1 3 1 5
RW/ROM
RW/ROM
–
+
VC
RW/ROM
RW/ROM
B
VOFST
D
–
A
+
C
DVC
VC
RW/ROM
TSD
co
CONTROL LOGIC
.
4 5 6 7 8
HCD-RV222
9 4 2 8
30 DC OFST
29 RFDCI
–
28 RFDCO
+
VC
27 VC
26 RFC
EQ
25 VFC
24 BST
RFAC
23 RFG
VCA
VCC 22 VCC
21 CEI
–
20 CE
+
0 5 8 2 9 9 4
19 TE BAL
18 TE
17 FEI
–
16 FE
+
m
9
9 9
2 8 9 9
51