Sony MDS-EX77, Service Manual

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6-1. BLOCK DIAGRAM (1/2)
MDS-EX77
CLTV
FILO
FILI
A
B
OVER WRITE
HEAD DRIVE
Q181, 182
OVER WRITE
HEAD DRIVE
IC181
Q180
HR901
OVER WRITE
HEAD
1
2
RF AMP
TEMP
AMP
I-V
AMP
LD/PD
AMP
I
J
48 47
MORFO
MORFI
RFO
46 40 RF AGC
AGCI
EQ 38
RF
EQ WBL
37 62
PEAK PEAK
33 66
AUX AUX1
ABCD ABCD
34 65
FE FE
26 74
TE TE
28 73
SE SE
36 63
BOTM BOTM
PEAK &
BOTTOM
3T
BAND-PASS
FILTER
15
14
VCC
TEMPR
TEMPI
D101
4
5
8
9
A
B
C
D
DETECTOR
J I
F
E
I
J
B
A
C
D
E
F
35 ABCD AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
64
32 78
ADFG
ADFG
I-V
AMP
AT AMP
WBL
BAND-PASS
FILTER
29 30
ADIN ADFM
20 79
F0CNT F0CNT
16 82
SWDT DTRF
17 81
SCLK CKRF
18 80
XLAT XLRF
SERIAL/
PARALLEL
CONVERTER,
DECODER
COMMAND
AUTOMATIC
POWER CONTROL
Q162, 163
LASER ON
SWITCH
Q101
11
10
PD LD
ILCC
PD
LASER
DIODE
APC
PD
12
APCREF
RF AMP,
FOCUS/TRACKING
ERROR AMP
IC101
OPTICAL PICK-UP BLOCK
(KMS-260A/J1N)
A
B C
D
6
7
BUFFER
IC122
SPINDLE
MOTOR
DRIVE
3
4
M
6
8
OUT4F
OUT4R
IN4F
IN4R
1
2
29
30
M
27
25
OUT2F
OUT2R
IN2F
IN2R
3
4
19 21
OUT1F
OUT1R
IN1F
IN1R
5
6
OUT3F
OUT3R
IN3F
IN3R
7
8
SLED
MOTOR
DRIVE
SLED/SPINDLE MOTOR DRIVE,
FOCUS/TRACKING COIL DRIVE
IC152
HF MODULE
SWITCH
IC103, Q102-104
FCS+
FCS–
TRK+
TRK–
(FOCUS)
(TRACKING)
TRACKING
COIL
DRIVE
12
10
14
15
WRPWR
MOD
MOD
23 18
FOCUS
COIL
DRIVE
HF
MODULE
V-I
CONVERTER
WBL
3T
EQ
M901
(SPINDLE)
M902
(SLED)
55
52
COMPA-
RATOR
RFI
ASYI
51
ASYO
61
60
59
58
100
PLL
FILTER
PCO
EFMO
ANALOG MUX
SERVO
DIGITAL
SIGNAL
PROCESS
AUTOMATIC
POWER
CONTROL
94
1
SPFD
93
2
SPRD
SPINDLE
SERVO
AUTO
SEQUENCER
92
3
SFDR
91
4
SRDR
88
5
FFDR
89
6
FRDR
86
7
TFDR
85
8
TRDR
PWM GENERATOR
A/D CONVERTER
SAMPLING RATE
CONVERTER
CPU
INTERFACE
MONITOR
CONTROL
MNT3
MNT2
MNT1
4
3
2
1
MNT0
SCLK
SWDT
SRDT
6
5
8
9
SENS
XLAT
7
DQSY
12
11
SQSY
14
XINT
24
DADT
22
DOUT
21
DIN
LRCK
25
26
XBCK
OSCO
17
OSCI
SUBCODE
PROCESSOR
EFM/ACIRC
ENCODER/DECODER
ADIP
DEMODULATOR/
DECODER
SHOCK PROOF
MEMORY CONTROLLER
ATRAC ENCODER/DECODER
DIGITAL SERVO SIGNAL PROCESSOR,
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC121
DIGITAL
AUDIO
INTERFACE
13
RECP
10
XRST
83
APCREF
15
23
ADDT
BCK
LRCK
LOADING
MOTOR
DRIVE
6
5
M
10
2
OUT
(R)
OUT
(F)
REV
IN
FWD
IN
M903
(LOADING)
94
95
LDOUT
LDIN
4
CLAMP
REFERENCE
VOLTAGE SWITCH
Q311, 312
LOADING MOTOR DRIVE
IC311
42
41
33
77
67
68
69
32
90
16
15
12
MNT3
MNT2
SHOCK
FOK
SCLK
SWDT
SRDT
SENS
XLATCH
DQSY
SQSY
XINT
SLOCK
XBUSY
39 LD LOW
81 DIG-RST
80 WRPWR
86 MOD
75 LDON
SYSTEM
CONTROLLER
(MECHANISM CONTROL)
IC401(1/2)
89
35
SCTX
CD/VIDEO
DIGITAL INPUT
SELECTOR
IC304
WAVE SHAPER
IC303
OPTICAL
INPUT
IC301
OPTICAL
INPUT
IC302
ADDT
DADT
16
SWDT, SCLK, LATCH
LRCK, BCK
512FS
38 PB-P
S687
(PB POSITION)
37 REC-P
S688
(REC POSITION)
6
CHACK-IN
S685
(CHACKING IN)
7 PACK-IN
8 PACK-OUT
S686
(PACK OUT)
98 REFLECT
S682
(REFLECT)
97 PROTECT
S683
(PROTECT)
96 LIMIT-IN
S681
(LIMIT IN)
+5V
52 SDA 5 SDA
53 SCL 6 SCL
EEPROM
IC171
TX
E
F
2-AXIS
DEVICE
05
PSB
E 16
CLOCK
GENERATOR
512FS
BUFFER
IC123
SWDT
SCLK
LATCH
D
C
MDS-EX77
MD DIGITAL
OPTICAL
DIGITAL IN
CD PLAYER
MD DIGITAL
OPTICAL
DIGITAL IN
VIDEO 2
•
SIGNAL PATH
: PLAY
: REC
: PLAY (DIGITAL OUT)
: REC (DIGITAL IN)