Sony CDX-MP450X Service Manual page 40

CDX-MP450X
• IC Block Diagrams.
IC511 CXA2570N-T4
VC
1
LD
VCC
PD 2 APC
EQ IN 3
AC SUM 4
AC
GND 5
SUM
DC
SUM
RW/ROM
RW/ROM
RW/ROM
A 6
B 7
C 8
VC
D 9
RW/ROM
RW/ROM
VC
E 10
F 11
12 RW/ROM
SW
(H/L)
RW/ROM
VC
IC512 LA6556
24 RFDCI
FWD 1
23 RFDCO
INPUT
REV 2
VC
VCC2
22 VC 3
VL0– 4
21 RFC
EQ 20 VFC
19 BST
VL0+ 5
AC
18 RFG
VCA
VO4+
6
VCC
17 VCC
VO4– 7
16 TE
15 FEI
VO3+ 8
14 FE
VO3–
9
13 RFAC
VO2+ 10
VO2– 11
VO1+
12
VO1– 13
VCC1
14
VIN1 15
VIN1–A 16
AMP-A
–
VIN1+A +
17
VIN1–B 18
–
+
AMP-B
GND
36 S-GND
CH2-CH4 OUTPUT
35 MUTE2
MUTE2
ON/OFF
CH1 OUTPUT
34 MUTE1
MUTE1
ON/OFF
33 VIN4
OUTPUT
CONTROL
32 VIN4–
+
–
31 VIN4+
LEVEL
SHIFT
30 VREF-IN
29 VIN1 (VREF)-SW
VIN1/VREF SW
LEVEL
SHIFT
28 VREF-OUT (CH1)
–
+
5V REG
+
–
27 REG-OUT
LEVEL
SHIFT
26 REG-IN
25 VIN3+
+
LEVEL
–
SHIFT
24 VIN3–
23 VIN3
22 VIN2+
–
+
+
–
21 VIN2–
20 VIN2
19 VIN1 +B
40 40
IC401 LC75374E
33 32 31 30 29 28 27 26 25 24
+
+
–
–
– –
+ +
34
LSELO
L4 35
L3 36
L2 37 +
L1
38 –
VDD 39
CONTROL
–
R1 40
+
R2 41
SHIFT
R3 42
DECODER LATCH
REGISTER
R4 43
RSELO 44
+
+
– –
–
–
+
+
2 3 4 5 6 7 8 9 10
1
23
22 LFIN
+
21 LFOUT
–
+
20 LROUT
–
19 VREF
18
CE
17 DI
16 CL
15
VSS
–
14 RROUT
+
–
13 RFOUT
+
12 RFIN
11