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Model
HCD-DX10 HCD-RG20 HCD-RG30T HCD-RG4SR MHC-DX10 MHC-RG20 MHC-RG30T MHC-RG4SR
Pages
52
Size
4.84 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-dx10-hcd-rg20-hcd-rg30t-hcd-rg4sr-mhc-dx10-mhc.pdf
Date

Sony HCD-DX10 / HCD-RG20 / HCD-RG30T / HCD-RG4SR / MHC-DX10 / MHC-RG20 / MHC-RG30T / MHC-RG4SR Service Manual ▷ View online

31
HCD-DX10/RG4SR/RG20/RG30T
5-16. IC BLOCK DIAGRAMS
IC731   LA9241M (CD BOARD)
IC751   LC78622NE (CD BOARD)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
64
VCC1
LDS
LDD
BHI
PHI
LF2
VR
REFI
VCC2
FSS
DRF
CE
DAT
CL
CLK
DEF
FD-
FA
FA-
FE
FE-
SL-
SL+
AGND
SP
SPI
SPG
SP-
SPD
SLEQ
SLD
JP-
NC
TBC
FSC
DGND
SLI
SLC
RFS-
RFSM
CV+
CV-
SLOF
HFL
TES
TOFF
TGL
JP+
FIN2
FINI
E
F
TB
TE-
TE
TESI
SCI
TH
TA
TD-
TD
JR
TO
FD
62
61
60
59
55 54 53 52 51 50
49
48
47
46
45
44
43
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
42
58
57
56
RF DET
I / V
VCA
VCA
LSC
RF AMP
BAL
TE
T. SERVO & T. LOGIC
F. SERVO & F. LOGIC
SPINDLE SERVO
SLED SERVO
-COM
INTERFACE
APC
REF
+ -
+
-
+
-
+
-
+ -
+ -
+ -
- +
+ -
63
15
HFL
16
TES
17
T
OFF
20
JP-
19
JP+
58
RES
18
TGL
34
PCCL
24
CONT1
25
CONT2
26
CONT3
27
CONT4
28
CONT5
29
EMPH/CONT6
48
EFLG
60
16M
61
4.2M
46
XVSS
52
FSX
45
XIN
44
XOUT
43
XVDD
39
R
VSS
41
R
VDD
42
MUTER/CONT8
40
RCHO
37
LCHO
35
MUTEL/CONT7
38
LVSS
36
LVDD
Servo
command
General-purpose
ports
Crystal oscillator system
Timing generation
L.P.F
1-bit DAC
54
RWC
56
COIN
57
CQCK
55
SQOUT
53
WRQ
63
CS
50
SFSY
47
SBSY
51
SBCK
49
PW
14
V/P
13
CLV-
12
CLV+
22
FSEQ
10
EFMIN
1
DEFI
Microprocessor
interface
Subcode
separation
QCRC
CLV digital
servo
Synchronization
detection
EFM demoduration
Slice level
control
8x oversampling
digital filters
Digital
attenuator
Digital
output
Bilingual
Interpolation
and muting
31 DOUT
30 C2F
C1 and C2 error detection
and correction
Flag processing
9
EFMO
VCO clock oscillator
Clock control
2k x 8-bit RAM
RAM address
generator
6
VVDD
4
VVSS
3
PDO
5
ISET
7
FR
21
PCK
2
TA
I
59
TST11
64
TEST1
11
TEST2
32
TEST3
33
TEST4
62
TEST5
23
VDD
8
VSS
32
HCD-DX10/RG4SR/RG20/RG30T
IC101   BA1450 (MAIN BOARD)
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
21
22
23
24
15
14
13
AM
OSC
AM
MIX
AM IF
FM
IF
FM
DET
AM
DET
SD
DET
AGC
LED
DRIVER
COMP
SD
SW
VCO
PD
1/2
DECODER
VREG
1/2
FM IN
FM DET
TUNED
STEREO
IF OUT
R OUT
L OUT
AM/FM
FM/AM DET OUT
AM MPX IN
FM MPX IN
IN REQ MUTE
FM SD ADJ
VCC
GND
AM OSC OUT
AM OSC
VCO STOP
AM RF IN
AM IF IN
AM AGC
AM MIX OUT
FM BAND WIDTH
V . REG
IC781   MN1469XH (CD BOARD)
LEVEL SHIFT
Vcc
1
2
3
4
5
6
7
9
8
20
19
18
17
16
15
14
11
10
21
22
23
24
25
27
26
SUBGND
CH4 OUT-B
CH4 OUT-A
CH4 IN-A
CH4 IN-B
BIAS-IN
Vcc
Vcc
CH3 IN-A
CH3 IN-B
CH3 OUT-B
CH3 OUT-A
OP IN -
OP IN +
OP OUT
MUTE
VREG-OUT
CH2 OUT-A
SUBGND
CH2 OUT-B
CH2 IN-A
CH2 IN-B
GND
CH1 OUT-A
CH1 OUT-B
CH1 IN-A
CH1 IN-B
-
+
TR-B
12
13
28
LEVEL SHIFT
-
+
-
+
-
+
-
+
-
+
-
+
Vcc
LEVEL SHIFT
LEVEL SHIFT
IC301   BD3871FS (MAIN BOARD)
24
CAP
23
TNF1
22
TNF2
21
BNF2
20
BOUT2
19
BNF1
18
BOUT1
17
OUT1
16
OUT2
15
VCC
14
SI
13
SC
1
VIN1
2
VIN2
3
SEL2
4
SEL1
5
A1
6
A2
7
B1
8
B2
9
C1
10
C2
11
FIL
T
ER
12
GND
0dB-
-87dB
-
Vcc/2
Vcc/2
Surround
50k
50k
50k
50k
50k
50k
Vcc/2
Vcc/2
Vcc/2
Treble1
fc=8kHz
Treble1
fc=8kHz
Bass2
fo=80Hz
Bass1
fo=80Hz
Logic
33
HCD-DX10/RG4SR/RG20/RG30T
IC102   LC72130 (MAIN BOARD)
1
2
3
4
5
6
7
8
XIN
B03
CE
IFIN
AOUT
2
AIN1
AIN2
D1
CL
B04
D0
B01
I01
B02
XOUT
PD1
VSS
PD2
FMIN
AMIN
AOUT1
VDD
I02
B05
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PHASE DETECTOR
CHARGE PUMP
SWALLOW COUNTER
1/16.1/17 4bits
SWALLOW COUNTER
1/16.1/17 4bits
POWER
ON
RESET
1/2
C   B
I / F
REFERENCE
DIVIDER
REFERENCE
DIVIDER
C   B
I / F
2
DATA SHIFT REGISTER
LATCH
IC201   TA8189N (MAIN BOARD)
CH2/A CH2/B
NF
VCC
CG
NF
ALC
METAL
OUT
PRE
OUT
TAPE A
/TAPE B
REC
OUT
REC
IN
CH1/A CH1/B
NF
GND1
M/H
NF
CH2
CH2
ALC
M/N
CH1
GND
GND
CH1
+
+
+
+
A/B
GND
METAL
OUT
PRE
OUT
MIX
OUT
REC
OUT
REC
IN
IREF
VREF2
VREF1
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
IC701   BA6956AN (DRIVER BOARD)
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
IC602   BU2114F-E2 (PANEL BOARD)
3
6
9
12
15
18
2
5
8
11
14
17
1
4
7
10
13
16
SHIFT
REGISTER
LATCH
ENABLE
SIN
CK
LATCH
SOUT
EN
RST
GND
GND
VDD
O1
O2
O3
O4
O5
O6
O7
O8
GND
34
HCD-DX10/RG4SR/RG20/RG30T
5-17.
IC PIN FUNCTION DESCRIPTION
• IC601 LC866540A-5V62 (MASTER CONTROL)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30 - 39
40 - 41
42 - 45
46
47 - 50
51
52 - 63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
I/O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
O
O
O
O
O
I
I
I
I
I
I
I
I
O
O
O
O
O
Pin Name
CD ON/OFF
CD RWC
CD RESET OUT
CD SL –
CD SL +
CD A MUTE
CD WRQ
CD DRF
TU STEREO
TUNED
POWER DOWN IN
RESET
VR ENCODER A
VR ENCODER B
VSS
XTAL  6.0MHZ
XTAL  6.0MHZ
VDD
KEY INPUT 0
KEY INPUT 1
KEY INPUT 2
SPEANA IN L
SPEANA IN R
AMS IN
TAPE A HALF
TAPE B HALF
PHOTO SENSOR A
PHOTO SENSOR B
REMOTE IN
10G - 1G
P1 - P2
P3 - P6
VDD
P7 - P10
–VPP
P11 - P22
MODE SW IN
TAPE MODE SW A
TAPE MODE SW B
TAPE FWD REC SW B
CD NUMBER SENSOR
CD PIC UP/DOWN SW
CD TRAY OPEN SW
CD TRAY CLOSE SW
VDD
CD MOTOR +
CD MOTOR –
SPK RELY ON
SYSTEM MUTE OUT
TUNER MUTE OUT
Description
CD power on/off control signal output
Read/write control signal output
CD reset signal output
Sled movement control signal output
Sled movement control signal output
CD audio mute signal output
Subcode Q standby signal input
RF level detection signal input
Stereo tuning signal input
Tuning a frequency signal input
Power down signal input
Reset
Volume signal input from the rotary encoder
Volume signal input from the rotary encoder
Ground
Connection for a crystal resonator
Connection for a crystal resonator
Power supply
Function key input
Function key input
Function key input
Spectrum analyzer signal input
Spectrum analyzer signal input
AMS signal input
A deck half detect signal input
B deck half detect signal input
A deck photo sensor signal input
B deck photo sensor signal input
Data signal input from the remote control sensor
FL tube grid signal output
FL tube grid signal output
FL tube segment signal output
Power supply
FL tube segment signal output
FL tube pull-down voltage supply
FL tube segment signal output
Pull-down
Tape mode switch signal input
Tape mode switch signal input
Tape B REC switch detect signal input
Table address sensor signal input
CD BU up/down switch signal input
CD tray open switch signal input
CD tray close switch signal input
Power supply
CD changer motor control signal output
CD changer motor control signal output
Speaker relay control signal output
system mute signal output
Tuner mute signal output
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