Sony HCD-MD555, Service Manual

Page: 53 / 124

HCD-MD555
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAMS
— MD SECTION —
— 53 — — 54 —
F
E
C
D
B
A
Q162,163
LASER
DIODE
DETECTOR
OPTICAL PICK-UP BLOCK
(KMS-260A/JIN)
LD
POWER
PD
LD
E
F
M
M
TRACKING
COIL
FOCUS
COIL
SLED
MOTOR
M102
SPINDLE
MOTOR
M681
TRK+
TRK-
FCS+
FCS-
FOCUS/TRACKING COIL DRIVE
SPINDLE/SLED MOTOR DRIVE
TFDR
TRDR
FFDR
FRDR
SRDR
SFDR
16
VCC
VC
• Signal Path
• RCH is omitted
IC152
J I
A
B
B
C
D
I
J
RF
AMP
2
ILCC
APC
DRIVE
1
4
5
6
7
8
9
11
46
ADIN
40
I-V
AMP
AT
AMP
B.P.F
B.P.F
29
ADFM
30
ADFM ADFG
32
RF AGC
EQ AMP
38
33
PEAK &
BOTTOM
37
36
V-I
CONV.
20
47 48
MORFO
MORFI
I-V
AMP
ABCD
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
LASER ON
SWITCH
Q162,163
Q101
LD/PD
AMP
10
35
34
28
SERIAL/PARALLEL
CONV. DECODER
12 17 16 18
RF AMP
FOCUS/TRACKING ERROR AMP
IC101
I
J
C
B
A A
D
E
F
RFO AGCI RF
AUX
PEAK
BOTM
FOCNT
ABCD
FE
SE
26
TE
APC
PD
APC REF SWDT SCLK XLA
T
COMMAND
OUT3F 12
OUT3R
10
OUT1F 21
OUT1R
23
OUT2F 27
OUT2R 25
OUT4F 6
OUT4R 8
14 IN3F
15 IN3R
19 IN1F
18 IN1R
29 IN2F
30 IN2R
4 IN4F
3 IN4R
16 PSB
HF
MODULE
MOD
SPFD
SPDR
86
85
88
89
92
91
83
PWM GENERA
TOR
AUTO
SEQENCER
82 81 80
DTRF CKRF XLRF
APCREF
FROM CPU
INTERFACE
DIGITAL
SERVO
SIGNAL
PROCESSOR
AUTOMATIC
POWER
CONTROL
A/D
CONV.
67 63 64 65 66 75 74
ANALOG
MUX
AUX PEAK BOTM ABCD
FE TE SE
HF MOD
SWITCH
Q102-104,IC103
13
RECP
DIGITAL SERVO
SIGNAL PROCESSOR
IC121(2/2)
57
78
54
53
COMP.
RFIN
ASYI
ASYO
ADFG
ADIP DEMO/
DECODER
62
59
61
60
FIL
TER PLL
SPINDLE
SERVO
ASYO
FILI
FILO
CLTV
PCO
79
FCONT
SUBCODE
PROC.
EFM/ACIRC
ENCODER/DECODER
SHOCK PROOF
MEMOR
Y CONTROLLER
A
TRAC
ENCODER/DECODER
OVER WRITE
HEAD DRIVE
IC181,Q181,182
DIGITAL
AUDIO
INTERFACE
SAMPLING
RATE
CONV.
19
21
D IN
D OUT
IC401
DIGITAL
SIGNAL SW
IC402
OPTICAL
DIGITAL IN
IC401
100
EFMO
CLOCK
GEN.
27
28
29
XBCK
LRCK
FS256
DIGITAL
SIGNAL SW
MONITOR
CONTROL
INTERNAL BUS
DRAM
DRAM
43
47
46
44
XOE
XWE
XRAS
XCAS
25
ADDT
IC124
1 2 3 4 5 6 7 8 9 15 14 12 11 93 94
SPFD SPRD
SQSY
DQSY
XINT
TX
SENS SRDT XLA
T
SCLK
SWDT MNT0 MNT1 MNT2 MNT3
26
DADT
MD MECHANISM CONT.
IC316
MNT0 82
MNT1 81
MNT2 80
MNT3 79
SWDT 35
SCLK
37
XLAT 66
SRDT 36
SENS 78
SCTX 72
XINT 73
DQSY 75
SQSY 27
LD ON 57
MOD 65
WRPWR 67
DIG RST 77
10
XRST
SPFD SPRD
5
6
EEPROM
IC171
X302
10MHz
SDA 88
SCL 87
X IN 15
X OUT 13
S5
S4
S3
S2
85 DISK 1
S1
DSP
IC121(1/2)
A
H
DIGITAL OUT
OPT SELECT
: MD PLAY
: MD REC(ANALOG)
: MD REC(DIGITAL)
HR901
OVER WRITE HEAD
RESET
IC400
PHOTO
COUPLER
IC403-405
22 L3 DATA
21 L3 CLK
69 L3 MODE
L3 DATA
L3 CLK
L3 MODE
XBCK
LRCK
FS256
A/D,D/A CONV.
IC201
SDTO 18
SDTI 19
SCLK 16
LRCK 17
MCLK
12
L3 DATA 15
L3 CLK 14
L3 MODE 13
2 VIN L1
4 VIN R1
6 VIN L2
8 VIN R2
26 VOUT L
24 VOUT R
R-CH
L3 DATA
L3 CLK
L3 MODE
XBCK
LRCK
FS256
R-CH
R-CH
D
MD PLAY L
C
(PAGE 57)
MD REC L
1 WM OUT
100 WM IN
19 WM SYNC
2 WM CLK
45 WM INV
IC2000
IC401
REMOTE
DATA
L-CH
R-CH
WM I/O
J1
59 PROTECT SW
S683
58 REFLECT SW S682
63 LIMIT IN SW S681
91 HEAD DOWN SW
S7
92 HEAD UP SW S6
86 DISK 2
90 DISK 3
89 DISK 4
84 DISK 5
28 RESET SW S571
52 HOME SW S570
42 HEAD UP
41 HEAD DOWN
1 OUT1
7 OUT2
FIN 4
RIN 5
M
MOTOR DRIVE
IC172
M4
OVER WRITE HEAD
UP/DOWN MOTOR
24 ELE UP
26 ELE DOWN
7 OUT2
1 OUT1
RIN 5
FIN 4
M
MOTOR DRIVE
IC550
ELEVATOR
UP/DOWN MOTOR
54 LD IN
55 LD OUT
7 OUT2
1 OUT1
RIN 5
FIN 4
M
MOTOR DRIVE
IC551
LOADING
MOTOR
IC570
IC570
ELEVATOR
POSITION
SENSOR
SENSOR SW 83
SENSOR 39
PH570
ELEVATOR
POSITION
SENSOR
PH571
IC570
IC570
SENSOR2 40
12 SYSTEM RESET
18 PWR DWN
3 LEVEL L
47 OUT SEL1
I2C DATA 30
I2C CLK 29
I2C BUSY 20
I
AC DET
J
(PAGE 57)
LEVEL L
MD BACKUP
+3.3V
G
(PAGE 59)
I2C DATA
I2C CLK
I2C BUSY
(PAGE 59)
(PAGE 57)
(PAGE 56)
(PAGE 57)
Q403 Q400
Q402
Q401 Q404
NC
INV./NON INV.
SWITCH
51 CHACK IN SW
53 CHACK OUT SW