Sony MDS-JA50ES Service Manual ▷ View online
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAMS
— BD SECTION —
— BD SECTION —
— 37 —
— 38 —
MDS-JA50ES
OPTICAL PICK-UP BLOCK
(KMS-210A/J-N)
IV-AMP
IV-AMP
J
C B
D A
F
E
6
2
3
6
5
VC
7
1
IC172
BUFFER
48
47
J
I
RF AMP
46 45 44 43
RF AGC
& EQ
BPF
2
3
4
5
6
7
IV AMP
IV AMP
6
8
VC
RV101
E-F
BALANCE
9
1
+2.5V
GENERATOR
VC
16
12
D101
TEMP
AMP
TEMPR
+5V
TEMPI
10
11
Q101
APC
APCREF
LASER ON
SWITCH
LASER
POWER
RV102
PD
14 15
42
TRACKING
ERROR
AMP
AUX
SW
PEAK &
BOTTOM
ABCD
AMP
FOCUS
ERROR
AMP
AT
AMP
30
26
29
27
25
23
22
41
34
38
39
37
35
31
33
SERIAL
PARALLEL
DECODER
17 18 19 20
4
RF AMP
IC101
+5V
HR901
OVER
WRITE
HEAD
4
2
IC122
Q162,163
APC
HIGH
POWER
LD
Q164
HF
MODULE
SWITCH
SLED/SPINDLE MOTOR DRIVE,
FOCUS/TRACKING COIL DRIVE
IC151
HEAD
DRIVE
Q181,182
11
14
15
15
17
18
OVER WRITE
HEAD DRIVE
IC181
1
19
2
3
9
5
IC102
4
2
VC
DRIVER
DRIVER
DRIVER
L.F
MOD
H.F
MOD
26
29
TRK+
TRK–
11
8
15
13
TRACKING
COIL
FOCUS
COIL
2
2
M
M101
SLED
MOTOR
22
24
M
M102
SPINDLE
MOTOR
2
2
CLOCK
DETECTOR
3
Q151
RESET
SWITCH
33
DRIVER
20
19
18
17
6
5
31
32
TFDR
TRDR
FRDR
FFDR
SFDR
SRDR
SPFD
SPRD
FS4
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER
IC121
SUBCODE
PROCESSOR,
READER/
GENERATOR
14
EFM
MOD/DEMOD
45
58
DIN
PLL
REGISTER
FILTER
PLL
4
EFM
TIMING
GENERATOR
DIGITAL
CLV
PROCESSOR
TIMING
GENERATOR
&
CLOCK
GENERATOR
AUDIO
DATA
CONTROL
ECC
ENCODER
DECODER
DECODER
32K RAM
30
29
27
28
DIGITAL
AUDIO
IN/OUT
20
21
15
FILTER
31
94
93
82
ADIP
DEMOD
ADIP
DECODER
ANALOG
MUX
68
65
64
66
67
77
76
69
VC
5
A/D
CONV
8
9
10
16
CPU
IF
24
11
4
SERVO
CONTROL
DIRC
7
SERVO
AUTO
SEQUENCER
PROCESSOR
APC
PWM
GEN
5
SERVO DSP/PWM GENERATOR
FOCUS/TRACKING/
SLED SERVO & PWM
6
4
3
2
98
99
DFCT
FOK
SHCK
OFTRK
COUT
6
84
LD
32
33
90
35
BCK
LRCK
FS4
XTAI
SENS
CONTROL
12
85 86 87 89 91 92
6
51 52 49 53
DICV
DIFI
DIPD
DIFO
SQSY
DQSY
DIN
DOUT
DIDT
DODT
DTO
DTI
C2PO
TRDR
TFDR
FFDR
FRDR
SRDR
SFDR
SENS
SWDT
SCLK
XLAT
XRST
REC
SRDT
SRDT
AUX
BOTM
PEAK
ABCD
ABCD
FE
TE
SE
SE
VC
SPFD
SPRD
60
62
61
63
CLTV
FILI
PCO
FILO
EFMO
RFI
RF
AUX
BOTM
PEAK
ABCD
FE
ADFM
ADIN
TE
SE
TLB
ADFG
XRST
SWDT
SCLK
XLAT
PD
VC
A
B
C
D
D
E
F
FI
FO
FCS+
FCS–
SLED–
SLED+
SPDL+
SPDL–
4
2
IC182
8
LDDR
AAPC
DAPC
I
WRPWR
LIMIT
INSW
OUTSW
HDS
HUS
PROTECT
REFLECT
5
-1
-2
S102-1
PROTECT
S102-2
REFLECT
S101
LIMIT IN
SW191
LOAD IN DET
SW192
LOAD OUT DET
SW193
HEAD DOWN
DET
SW194
HEAD UP DET
IC171
MEMORY
6
5
SDA
SCL
SCL
SDA
SCL
WRPWR
FG
SHCK
FOK
DFCK
512FS
SQSY
SCTX
SWDT
SCLK
XLAT
SRDT
SENS
LRCK
BCK
C2PO
L OUT
L IN
L IN
HU
HD
HD
DATA
DODT
DOUT
LDON
MOD
REC
DIGITAL
SECTION
(Page 39)
A
09
Signal path
:PB
:REC
:PB (Digital out)
:REC (Digital in)
:PB
:REC
:PB (Digital out)
:REC (Digital in)
P-P
TFIL
THID
TENV
M
M
M191
LOADING MOTOR
M192
HEAD MOTOR
XRST
— 39 —
— 40 —
MDS-JA50ES
— DIGITAL SECTION —
OSCO
12
69
•
68
•
70
•
71
16
17
4
3
61
62
66
67
XOE
XCAS
XRAS
XWE
93
90
91
97
TX
DATA
LRCK
LRCK
BCK
MIN
C2PO
92
EFM
DATA
INTERFACE
RAM
INTERFACE
4
CPU
TIMING
CONTROL
ATRAC
INTERFACE
CPU
INTERFACE
ATRAC
ENCODER
/DECODER
DODT
DIDT
DOUT
ADIN
ALRCK
ABCK
ATRAC ENCODER/DECODER
IC206
16
2
2 3
5 6 7 8 9 11 17 26
SWDT
SCK
XLAT
SRDT
SENSE
SCMD0
XINT
WRMN
XRST
AIRCPB
SCMD1
CLOCK
GENERATOR
4
4
4
7
13
BUFFER
IC210
21
DATAO
DECIMATION
FILTER
SAMPLING
RATE
CONVERTER
ATT
OVER
SAMPLING
FILTER
IIR
I/F
DATAI
SAMPLING
RATE
DETECTOR
23
5
6
SYSTEM
CONTROLLER
4
3
19
21
22
TIMING
23
C
BIT
DET
SUBQ
DET
MICON
I/F
11
10
14 15 16 17 18 24
19
7
26
28
58
MOTOR
DRIVE
7
1
5
4
LOADING
MOTOR DRIVE
IC201
MOTOR
DRIVE
7
1
5
4
HEAD MOTOR DRIVE
IC212
DIGITAL AUDIO INTERFACE RECEIVER
IC203
19
13
16
15
14
DIGITAL
REC
LEVEL
97
DVOL
RV602
RESET
RESET
SWITCH
Q201
SWITCH
Q202
20 43
24
72
32
30
33
31
4
23
55
54
57
56
58
52
51
60
59
77
78
80
INSW
OUTSW
HDOWNS
HUPS
PROTECT
REFLECT
LIMIT-IN
INSW
OUTSW
HD
HU
PROTECT
REFLECT
LIMIT
5
67
69
70
71
76
79
61
66
68
74
75
SDA
SCL
SQSY
SCTX
FOK
SHCK
WRPWR
SENS
LDON
REC/PB
MOD
FG
SQSY
FOK
SHCK
WRPWR
SENS
LDON
REC
MOD
FG
SDA
SCL
SYSTEM CONTROL
IC202
HUP
HDWN
LDIN
LDOUT
XINT
37RST
SWDT
SCLK
XLATCH
SRDT
04LAT
DOSY
DIG-RST
EROR
44
SRCRST
45
SRC TEST
35
37
38
POWER DOWN
FLDATA
FLCLK
FLCS
FL DRIVER
IC701
RST
SDATA
SCK
CS
59
33
•
31
23
S1
S36
12
1
64
61
D1
D16
KEY
MATRIX
90
95
KEY1
KEY3
•
KEY0
•
TIMER
•
SORCE
84
•
86
•
88
•
100
•
83
PLAY
•
REC
•
PAUSE
•
DF
•
POWER
LED
DRIVER
Q701-704,
781
3
4
ROTARY
ENCODER
JOG0
JOG1
1
6
REMOCON
OUT
D701-704,
781
S702
AMS
PUSH ENTER
REMOTE CONTROL
RECEIVER
IC781
FL701
FLUORESCENT
INDICATOR
TUBE
F1
F2
TO
POWER
TRANSFORMER
10
11
13
15
X202
32.768KHz
X201
10MHz
XIN-T
XOUT-T
XOUT
XIN
40 41
42
DIN/XMD
COAX/XOPT
OPT1/XOPT2
27
26
25
28
29
95LAT
95RST
62RST
ADRST
ADLAT
12
49
50
DA-MUTE
STB
SYSTEM-RST
DOUT
ADIN
ALRCK
IC211
2
4
XLRCK
ALRCK
ABCK
XRST
1024FS
SWDT
SCLK
SCLK
95LAT
95RST
62RST
ADRST
B
AUDIO
SECTION
(Page 41)
P. DOWN
DA-MUTE
STB
S.RST
C
POWER
SECTION
(Page 43)
DOUT
DODT
SCTX
DATA
LRCK
BCK
DFCK
C2PO
512FS
XRST
SWDT
SCLK
XLAT
SRDT
LDOUT
LDIN
HD
HU
A
BD
SECTION
(Page 38)
09
2CE
SRDT
1
44
43
41
42
95
94
1
•
2
•
18
•
19
6
9
•
11
15
•
5
DQ1
DQ4
A0
A9
OE
CAS
RAS
WE
DRAM
IC208
53
54
55
LRCKI
BCKI
FIMCK
FIMO
LRCKO
SCK
XLAT
SWDT
BCKO
3
17
7
13
5
15
9
11
12
8
DATAO
18
2
DATA
MODULATION
16
4
14
6
LRCK
BCK
CKOUT
INPUT
SAMPLING RATE CONVERTER, DIGITAL FILTER
IC207
AVOCK
XMODE
SCLK
XLAT
SWDT
SRDT
DQSY
EROR
DIN1
IC205
ABCK
ALRCK
SCLK
XLAT
SWDT
SRDT
4
2
2
87
SPO
36
37
OSCI
9
XI
XO
INIT
TEST1
SRDT
IC205
4
•
55
52
•
56
60
•
65
13
14
12
1
7
3
4
5
6
DIGITAL IN
SELECTOR
IC352
14
2
DIGITAL OUT
SELECTOR
IC351
3
3
1
J351
IC353
IC355
IC356
COAXIAL
OPT1
OPT2
DIGITAL
OUT
OPTICAL
DIGITAL
IN
SEL
SEL1
SEL0
8
5
4
1
10
13
IC354
• Signal path
: PB
: REC
: PB (Digital out)
: REC (Digital in)
: PB
: REC
: PB (Digital out)
: REC (Digital in)
1
22
51
52
PLL
— AUDIO SECTION —
— 41 —
— 42 —
MDS-JA50ES
DOUT
ABCK
ABCK
ALRCK
S/P
LRCKI
DATAI
BCKI
44
43
45
43
45
ATT
IIR
MODE
FIR
P/S
CONVERT
AND
D/F
CLOCK GEN.
TIMING
CIRCUIT
CLOCK
GENERATOR
17
47 48 49
46
ATT
SHIFT
LATCH
INIT
MCKIN
23
59
60
60
DFDTOL
DFBCKO
DFLRCKO
12
64FSI
DLI
LRCKI
BCKI
BCKI
38
36
39
36
39
S/P
INTER
POLATER
46
LRCKO
TIMING
CIRCUIT
10
3rd ORDER
NOISE SHAPER
PLM
D/A CONVERTER
IC502
CLOCK
GENERATOR
L1(+)
L1(–)
L2(+)
L2(–)
63
61
61
2
4
4
25
24
27
28
24
27
28
IN1+
IN1–
IN1–
IN2+
IN2–
IN2–
SWITCHING
CIRCUIT
1
2
4
2
4
5
CURRENT PULSE
IC505
IO1+
IO2–
IO1–
IO2+
IO2+
CONSTANT
CURRENT
CIRCUIT
6
2
LPF
LPF
7
1
+
+
L.P.F.
IC509
6
5
5
7
3
1
MIX/LINE AMP
IC510
MUTE
IC513, Q502
40
512FSO
33
INIT
XIN
5
2 3
IC515
CLOCK DIVIDER
Q
D XQ
1
CK
7
5
1 2
3
6
CLOCK
GENERATOR
IC514
O3
O1
IN1
O2
IN3
IN2
X501
45MHz
HEADPHONE
AMP
IC651
3
1
RV651
RY501
RCH
J651
MUTE
Q651,654
RELAY
DRIVE
Q505
HP MUTE
RELAY
PHONES
L
PJ501
• R CH is omitted
• Signal path
: PB
: REC
• Signal path
: PB
: REC
LINE
OUT
D
POWER
SECTION
(Page 43)
(Page 43)
PHONE
LEVEL
L
PJ501
LINE
IN
ANALOG
REC
LEVEL
RV601
5
LINE AMP
IC307
5
7
2
LPF
1
L.P.F., PRE AMP
IC305
3
4
4
LPF
8
DAC
22 ICLK
21
26
ARI
FCLK
27
4
2
DIGITAL FILTER
IC301
50
54
56
54
56
DLO
BCK
LRCK
BCK
LRCK
APD
A/D CONVERTER
IC302
ADL
+
_
+
AINL+
AINL_
ADIN
XLRCK
XRST
ADRST
SWDT
SCLK
95LAT
95RST
62RST
1024FS
B
DIGITAL
SECTION
(Page 40)
(Page 40)
09
NOISE SHAPER, DIGITAL FILTER
IC501
MUTE
MCLK
INIT
7
— 43 —
— POWER SECTION —
MDS-JA50ES
3
1
+5V REG
IC304
3
1
+5V REG
IC503
3
1
+7V REG
IC507
1
3
+12V REG
IC904
RECT
D911,912
RECT
D909,910
1
–12V REG
IC903
2
1
–5V REG
IC303
2
1
–7V REG
IC506
2
RELAY
DRIVE
Q905
RECT
D919,920
RY901
CN001
AC
IN
4
1
2
4
2
1
1
+3.3V REG
IC204
1
+5V REG
IC191
5
5
4
2
1
T002
POWER
TRANSFORMER
+7V REG
IC909
STB
STBY SW
Q903
+5V REG
IC907
STB
+5V REG
IC905
STB
RESET GEN.
IC901
3
5
D907
D908
BT901
LITHIUM ION
BATTERY
B. UP +5V
SYS. +5V
7
1
5
+5V REG
IC902
RECT
D916
RES
13
10
POWER DOWN
DETECT
IC906
RECT
D921,922
D914
D901,903
D902,904
POWER ON/OFF
MUTE SW
Q901,902
RELAY
MUTE
HP MUTE
D
AUDIO
SECTION
(Page 42)
(Page 42)
P. DOWN
DA-MUTE
S.RST
C
DIGITAL
SECTION
(Page 40)
(Page 40)
AMP. +12V
AD. +5V
DA. +5V
AMP. –12V
AD. –5V
RELAY. +5V
D+5V
D +3.3V
BD. +5V
UNREG. +8V
P.H. +5V
M+5V
RECT
D915
RECT
D918
3
1
FL. –32V
–32V REG
IC908
F1
F2
TO
FLUORESCENT
INDICATOR
TUBE
T001
POWER
TRANSFORMER
09
STB
MAIN
POWER
S001
AEP,UK,G
• Abbreviation
G: German model
G: German model
DA. +7V
AD. –7V
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