Ic Block Diagrams - Sony HCD-RV22 Service Manual

HCD-RV22/RV55

6-25. IC BLOCK DIAGRAMS

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
A B C D
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
B
DVC
D
DVC 14
A
C
RFAC 15
IC701 BA6956AN (DRIVER BOARD)
IC712 BA6956AN (DRIVER BOARD)
1 2 3
HCD-RV22/RV55
RW/ROM
30 DC OFST
29 RFDCI
A
–
B –
+
28 RFDCO
+
C
DVC
D
DVC
VCC
VC
RW/ROM
VOFST 27 VC
26 RFC
EQ 25 VFC
24 BST
EQ ON/OFF
RFAC
23 RFG
VCA
RW/ROM
VCC 22 VCC
VOFST
21 CEI
B
C
–
–
A
+
20 CE
+
D
DVC
VC
RW/ROM
19 TE BAL
RW/ROM
–
18 TE
+
VC
RW/ROM
RW/ROM
17 FEI
VOFST
–
–
+
16 FE
+
DVC
VC
RW/ROM
TSD
CONTROL LOGIC
4 5 6 7 8 9
IC504 PCM1748E/2K (VMP43GY BOARD)
16 15 14
SYSTEM
FUNCTION
CLOCK
CONTROL
MANAGER
INTERFACE
SYSTEM
CLOCK
INTERFACE
IC307 BD7600FV-E2 (VMP43GY BOARD)
BUFOUT 1
CLAMP
STBY 2
IN 3
GND 4
GND
IC506 BU2507FV-E2 (VMP43GY BOARD)
14 13
10BIT R-2R
D/A CONVERTER
CH1
10BIT LATCH
10BIT LATCH
CH2
10BIT R-2R
D/A CONVERTER
1 2
50 50
13 12 11
ZERO DETECT
D/A OUTPUT AMP AND
CONVERTER LOW-PASS FILTER
8 TIME OVER
SAMPLING
ENHANCED
DIGITAL FILTER
MULTI-LEVEL
WITH
DELTA-SIGMA
FUNCTION
MODULATOR
CONTROLLER
SERIAL
D/A OUTPUT AMP AND
INPUT
CONVERTER LOW-PASS FILTER
POWER SUPPLY
1 2 3 4 5 6
8dB
8 BUFIN
VCC
7 VCC
9dB
LPF
6 OUT
5 OUTSAG
12 11 10 9
14BIT
SHIFT REGISTER
10BIT R-2R
D0 – D9 D10 – D13
D/A CONVERTER
ADDRESS
10BIT LATCH
DECODER
CH6
10BIT LATCH 10BIT LATCH 10BIT LATCH
CH3 CH4 CH5
10BIT R-2R 10BIT R-2R 10BIT R-2R
D/A CONVERTER D/A CONVERTER D/A CONVERTER
3 4 5 6
10 9
7 8
8
7