Read Sony HCD-WZ7AV Service Manual online
38
38
HCD-WZ7AV
5-20. IC Block Diagram
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
IC202 BA6956AN (MAIN BOARD)
IC701 M65850FP-E1 (MIC BOARD)
LPF1
LPF2
OSCILLATOR
AUTO
RESET
1/2 Vcc
A/D
D/A
20Kbit/
SRAM
MAIN CONTROL
D1
RESET
CLOCK
DO0
DO1
MO
MI
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
LPF1 IN
LPF1 OUT
OP1 OUT
OP1 IN
CC1
CC2
GND
LPF2 OUT
LPF2 IN
OP2 OUT
OP2 IN
REF
CLOCK
VCC
NC
9
8
10
D/A
D13
D13
D13
D13
D13
D8
D9
D7
D6
D6
D5
D4
D3
D2
D2
D1
D0
L
D/A
L
13
14
10 BIT
L-CH
D/A
CONVERTER
10 BIT
LATCH
D/A
L
D/A
L
10 BIT
L-CH
D/A
CONVERTER
10 BIT
LATCH
12
11
VCC
AO6
LD
CLK
DI
AO1
GND
5
7
6
2
1
3
4
VDD
AO4
AO5
RST
AO3
AO2
VSS
14BIT
SHIFT
SHIFT
REGISTER
ADDRESS
DECODER
DECODER
BUFFER,
OP-AMP
OP-AMP
5
4
3
CH2
CH1
6
IC506 BU2507FV-E2 (VMP BOARD)
1
3
2
15
14
13
12
11
11
5
4
6
9
8
10
7
16
ROUT
LOUT
VCC
VDD
DGND
LRCK
DATA
BCK
Serial
Input
Power
System Clock
System Clock
I/F
Zero Detect
DAC
DAC
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Control
Function
Manager
8x Oversampling Digital Filter
with Function Controller
Enhanced Multi-Level
Deita-Sigma Modurator
Supply
I/F
MCLK
LAT
CLK
DATA
DATA
DZFL
DZFR
VCOM
AGND
IC504 PCM1748E/2K (VMP BOARD)
IC103 CXA2581N-T4 (BD BOARD)
RW/ROM
RW/ROM
EQ ON/OFF
VOFST
VOFST
DVC
VC
VC
VC
RW/ROM
VC
DVC
30
29
28
+
–
+
–
DVC
VCC
DVC
27
26
25
24
RW/ROM
EQ
23
22
21
20
19
RFAC
VCA
VCC
+
–
DVC
+
–
+
–
RW/ROM
VC
RW/ROM
DVC
+
–
3
A
B
C
D
B
C
C
A
A
A
B
C
C
D
B
C D
D
+
–
1
2
APC AMP
5
6
7
8
9
4
RFAC
SUMMING
AMP
RW/ROM
APC-OFF
(Hi-Z)
RW/ROM
(H/L)
VOFST
VC
RW/ROM
+
–
10
11
GM
GM
18
17
16
B
D
A
C
13
14
15
12
EQ IN
LD
PD
GND
A
B
C
D
AC SUM
E
F
DVCC
DVC
RFAC
SW
DC OFST
RFDCI
RFDCO
VC
RFC
VFC
BST
RFG
VCC
CEI
CE
TE BAL
TE
FEI
FE
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