Sony MDS-JB980 Service Manual ▷ View online
37
MDS-JB980
1
FLDT
O
Serial data output to the display driver (IC771)
2
FLCK
O
Serial clock signal output to the display driver (IC771)
L: Active
3
A1-IN
I
A1 Control input (Not used.) (Open)
4
SIRCS
I
Remote control signal input
5
NETMD_SO
O
Serial data output to UNICORN NETMD-USB I/F
6
NETMD_SI
I
Serial data input from UNICORN NETMD-USB I/F
7
NETMD_CLK
O
Clock signal output to UNICORN NETMD-USB I/F
8
BYTE
I
Data bus changed input (Fixed at “L”.)
9
CNVSS
—
Ground pin
10
XIN-T
I
Not used. (Fixed at “L”.)
11
XOUT-T
O
Not used. (Open)
12
S.RST
I
System reset signal input
13
XOUT
O
Main clock output (10 MHz)
14
GND
—
Ground pin
15
XIN
I
Main clock input (10 MHz)
16
VCC
—
Power supply pin (+3 V)
17
NMI
I
Fixed at H. (Fixed at “H”.)
18
DQSY
I
Digital in sync input (Record system)
19
P.DOWN
I
Power down detection input
L: Power down
20
SQSY
I
ADIP (MO) sync or subcode Q (PIT) sync input from CXD2664R (IC201) (Playback system)
21
KB.CLK
I
Keyboard clock signal input
22
KB.DATA
I
Keyboard data signal input
23
IIC BUSY
I
IIC cable connect check (Not used.) (Open)
24
A1 OUT
O
A1 control signal output (Not used.) (Open)
25
XINIT
I
Interrupt status signal input from CXD2664R (IC201)
26
*BEEP
O
Not used. (Open)
27
LRCKI
O
Not used. (Open)
28
IIC POWER
O
Not used. (Open)
29
IIC CLK
O
Not used. (Fixed at “L”.)
30
IIC DATA
I/O
Not used. (Fixed at “L”.)
31
SWDT
O
Writing data signal output
32
SRDT
I
Reading data signal input
33
SCLK
O
Clock signal output
34
KB.CLK-CTL
O
Keyboard clock ON/OFF signal output
35
CLIP-TX
O
Not used. (Open)
36
CLIP-RX
I
Not used. (Open)
37
XBCK1
O
Not used. (Open)
38
MUTE
O
Line out muting signal output
39
ADA.RESET
O
Reset signal output to the AK4524 (IC500)
40
ADA. LATCH
O
Latch signal output to the AK4524 (IC500)
41
EPM
I
Not used. (Fixed at “L”.)
42
L : DINT1/H : CLIP
O
Not used. (Open)
43
NC
O
Not used. (Open)
44
PROTECT
I
Recording-protection claw detection input from the protection detection switch H: Protect
45
SCL
O
Clock signal output to the EEP-ROM (IC195)
46
CE
I
Not used. (Pull-up)
Description
Pin Name
Pin No.
I/O
• IC1 M30823MH-052FP (SYSTEM CONTROL) (MAIN BOARD)
38
MDS-JB980
47
EEP-WP
O
EEP-ROM write protect signal output
L: write possibility
48
XBUSY
I
In the state of executive command from the CXD2664R (IC201)
49
OUT-SW
I
Detection signal input from the loading out detection switch (S103)
50
XLATCH
O
Latch signal output
51
PLAY-SW
I
Detection signal input from the playback position detection switch (S104)
L: PLAY
52
DIG-RST
O
Digital rest signal output to the CXD2664R (IC201) and motor driver (IC401)
53
REC-SW
I
Detection signal input from the recording position detection switch (S105)
L: REC
54
WR PWR
O
Laser power ON/OFF output
55
LIMIT-IN
I
Detection input from the limit switch (S101)
L: Sled limit-In, H: Sled limit-Out
56
MOD
O
Laser modulation switching signal output
57
LDON
O
Laser ON/OFF control output
58
SENS
I
Internal status (SENSE) input from the CXD2664R (IC201)
59
SHOCK
I
Track jump signal input from the CXD2664R (IC201)
60
SDA
I/O
Serial data input/output pin with the EEP-ROM (IC195)
61
REFLECT
I
Disk reflection rate detection input from the reflect detection switch
H: Disk with low reflection rate
62
VCC
—
Power supply pin (+3 V)
63
NC
O
Not used. (Open)
64
GND
—
Ground pin
65
LOAD LO
O
Loading motor voltage control signal output
66
LOAD OUT
O
Loading motor control signal output
H: eject
67
LOAD IN
O
Loading motor control signal output
H: loading
68 to 71
MODEL SEL 0 to 3
O
Not used. (Open)
72 to 74
NC
O
Not used. (Open)
75
UNIT
I
Interrupt signal input from UNICORN NETMD-USB I/F
76
UCS
O
Chip select signal output to UNICORN NETMD-USB I/F
77
URESET
O
Reset signal output to UNICORN NETMD-USB I/F
78
UPLLSW
O
PLL ON/OFF signal output to UNICORN NETMD-USB I/F
79
UVBUS3.3
I
V bus voltage input from UNICORN NETMD-USB I/F
80
SELECT
O
UNICORN optical input select signal output
81
STB
O
Strobe signal output to the power supply circuit
H: Power supply ON, L: standby
82
BEEP SW
O
Not used. (Open)
83
REC
O
Not used. (Open)
84
FLCS
O
Chip select signal output to the display driver (IC771)
85, 86
D.VOL0,1
O
Recording level signal output to REC LEVEL volume switch (RV760)
87, 88
JOG0, JOG1
I
Jog dial pulse input from the rotary encoder (S713)
89
IOP
I
Optical Pick-up voltage (current) detect signal input
90
DISTINATION
I
Model discrimination
91
MODEL SEL
I
Model discrimination
92
TIMER
I
Timer select signal input from timer select switch (S751)
93 to 95
KEY3 to 1
I
Key input pin (A/D input)
96
AVSS
—
Ground pin
97
KEY0
I
Key input pin (A/D input)
98
VREF
I
A/D reference voltage (Fixed at “H”.)
99
AVCC
—
Power supply pin (+3 V)
100
NC
I
Not used. (Fixed at “L”.)
Description
Pin Name
Pin No.
I/O
39
39
MDS-JB980
6-2. BLOCK DIAGRAM — BD SECTION —
F
C
B
D
A
E
I
J
J
I
B
A
C
D
E
F
DETECTOR
J
I
A
B
C
D
D
E
F
LD
PD
LASER DIODE
ILCC
PD
OPTICAL PICK-UP
(KMS-260B/260E)
(KMS-260B/260E)
LD DRIVER
Q202, 203
IOP MONITOR
AMP
IC701
APC
PD
APCREF
AT
AMP
B.P.F.
WBL
ADFM
ADIN
ADFG
ABCD
AMP
ABCD
FE
TE
SE
F0CNT
WBL
3T
EQ
COMMAND
SWDT
SCLK
XLAT
RFO
RF AGC
& EQ
AGCI
EQ
RF
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
TEMP
MORFO
MORFI
3T
WBL
AUX
PEAK
BOTM
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC401
OUT4F
OUT4R
M101
(SPINDLE)
OUT2F
OUT2R
M102
(SLED)
OUT3F
OUT3R
OUT1F
OUT1R
FCS+
FCS–
TRK+
TRK–
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
IN4R
IN4F
IN2F
IN2R
IN3F
IN3R
IN1F
IN1R
MOD
SPFD
SPRD
APCREF
SFDR
SRDR
FFDR
FRDR
TFDR
TRDR
PSB
FROM CPU
INTERFACE
DIGITAL SERVO
SIGNAL PROCESSOR
IC201 (2/2)
RPWR
AUX1
ABCD
FE
TE
SE
PEAK
BOTM
XLRF
CKRF
DTRF
XLAT
SCLK
SWDT
FILI
PCO
CLTV
FILO
EFMO
ADDT
DATAI
NC
D+3V
DIN1
TX
ASYO
ASYI
RFI
SCTX
EFMO
HR901
OVER WRITE HEAD
ADFG
F0CNT
SPFD
SPRD
SAMPLING
RATE
CONVERTER
DIGITAL
AUDIO
INTERFACE
DIN0
DOUT
OSCN
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC201 (1/2)
INTERNAL BUS
DADT
XBCK
LRCK
FS256
OSCI
OSCO
DQSY
SQSY
XINT
SENS
XRST
SRDT
SWDT
SCLK
XLAT
MNT0
MNT1
MNT2
MNT3
SHOCK
XBUSY
SWDT
SCLK
XLATCH
SELECT
MNT1 (SHOCK)
MNT2 (XBUSY)
DIG-RST
SQSY
DQSY
LDON
NC
NC
IOP
WRPWR
MOD
XINT
SENS
SRDT
LDIN
LDOUT
IN1
IN2
OUT1
OUT2
VZ
LOADING
MOTOR DRIVE
IC461
M103
(LOADING)
D+3V
DQ1 – DQ4
A0 – A9
D0 – D3
A00 – A09
XOE
XWE
XRAS
XCAS
OE
WE
RAS
CAS
D-RAM
IC153
CLOCK
GENERATOR
IC803
DIN1
SYSTEM CONTROLLER
IC1 (1/2)
HF MODULE
ADDT
DIN1, LRCKI, DATAI, XBCKI
DATAI
XBCKI
LRCKI
DADT, BCK, LRCK
SWDT, SCLK
SWDT
REFLECT
PROTECT
LD-LO
SDA
SCL
EEP-WP
UNREG
+12V
65
LIMIT-IN
OUT-SW
S101
(LIMIT IN)
PLAY-SW
•
SIGNAL PATH
: PLAY (ANALOG OUT)
: REC (ANALOG IN)
: REC (ANALOG IN)
: REC (DIGITAL IN)
S103
(OUT SW)
S104
(PLAY SW)
REC-SW
S105
(REC POSITION)
XBCKI
LRCKI
OVER WRITE
HEAD DRIVE
IC181
, Q181, 182
WAVE SHAPER
IC641
SELECTOR
IC651
OPTICAL
RECEIVER
IC611
OPTICAL
TRANSMITTER
IC631
11
9
8
4
1
2
48
47
46
40
33
38
37
36
32
35
34
26
28
18
17
16
20
12
30
29
5
6
7
10
4
3
LASER ON
SWITCH
Q201
LD/PD
AMP
I-V
AMP
I-V
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
RF AMP
B.P.F.
PEAK &
BOTTOM
6
8
108
107
104
105
103
102
98
97
100
15
80 78 79 86 85 76 77
99
27
25
12
10
21
23
19
18
14
15
29
30
3
4
16
M
M
M
SERVO
DSP
ANALOG MUX
A/D CONVERTER
SERIAL/PARALLEL
CONVERTER,
DECODER
AUTO
SEQUENCER
V-I
CONVERTER
HF MODULE
SWITCH
Q701 – 704
115
73
72
75
74
67
68
70
91
94
110 109
14 13
16 12 11 10
6 7 8
1 2 3 4
38
37
19
36
21
34
35
33
26
25
24
28
29
27
32
20
5
1
47
46
22
3
4
23
17
ADIP
DECODER
SPINDLE
SERVO
COMPA-
RATOR
PLL
FILTER
SUBCODE
PROCESSOR
EFM/ACIRC
ENCODER/DECODER
SHOCK PROOF
MEMORY CONTROLLER
ATRAC
ENCODER/DECODER
CPU
INTERFACE
MONITOR
CONTROL
CONTROL
PLL
(X8)
CLKA
XIN
18
57
89
52
52
54
56
20
25
58 32
33 50
59 48
80
31
CLOCK
GENERATOR
43, 45, 44, 42
1, 2, 24, 25
48, 49, 51 – 56, 59, 60
5, 9 – 12, 14 – 18
C
B
A
E
67 66
5
6
4
VCC2 8
VCC1 7
SCL
WP
6
7
SDA
5
45
60
2
10
55
49
51
53
61
44
M
REFERENCE
VOLTAGE SWITCH
Q461,462
+5V
D+3.3V
A+3.3V
+3.3V
REG.
IC933
D+2.6V
+2.6V
REG.
IC926
EEPROM
IC195
47
PWM GENERATOR
SCLK
13
11
10
8
9
6
4
3
4
1
13
5
10
2
1
12
D
IN
J601
COAXIAL IN
OUT
OPTICAL
DIGITAL
(Page 40)
(Page 40)
(Page 40)
(Page 40)
(Page 40)
MDS-JB980
40
40
6-3. BLOCK DIAGRAM — MAIN SECTION —
X509
11.2896MHz
–1
–2
LED DRIVE
Q755
ROTARY
ENCODER
FL DRIVE
Q781, 782
D756
(STANDBY)
A/D, D/A CONVERTER
IC500
SDTO
ADDT
DADT, BCK,
LRCK
LRCK
SDTI
A
B
LINE AMP
IC101
MUTING
Q121,221
MUTING
CONTROL SWITCH
Q151
OSC
J101
-1
-2
-3
-4
RV801
PHONE
LEVEL
RV760
REC
LEVEL
D152
D151
J802
PHONES
R
L
ANALOG IN
ANALOG OUT
ADA,LATCH
DA
P2
P1
COM24
COM23
MUTE
UVBUS 3.3
ADA,RESET
CP
CS
AC IN
RELAY
+5V
AC
(TO FL781)
TR901
POWER
TRANSFORMER
UNREG +12V
RECT
D451
D451
NET MD_CLK
NET MD_SO
UNIT
RECT
D421,422
RECT
D443,444
RECT
D441, 442
79, 80, 1,2
39 – 60
3 – 37
AD1 – AD4
97,95-93
KEY0 – KEY3
COM01 – COM22
SEG01 – SEG35
S01 – S35
S36 – S39
G23
G24
G01 – G22
FLUORESCENT INDICATOR TUBE
FL781
FL/LED DRIVER
IC771
HIGH-PASS FILTER,
DIGITAL
ATTENUATOR
DIGITAL
ATTENUATOR,
SOFT MUTE
A/D
CONVERTER
BLOCK
SUB-
TRACKTION
D/A
CONVERTER
BLOCK
AUDIO
INTERFACE
CONTROLLER
CLOCK
GENERATOR,
CLOCK DIVIDER
CONTROL
REGISTER
INTERFACE
BICK
LRCK
MUTING
Q801,802
DADT
BCK
LRCK
AINL
AINR
XTI
XTO
CLKO
FLDT
SIRCS
FLCK
FLCS
JOG0
GND
SW
JOG1
TIMER
P DOWN
KB.DATA
KB.CLK
KB.CLK-CTL
l
AMS L
S713
S701 – 706, 711, 712,
S714,716.717,721-725,
S731-733
A
B
SWDT
SCLK
CDTI
CCLK
CS
PD
OSCI
OSCO
MIX AMP
IC111
(1/2)
MIX AMP
IC111
(2/2)
LOW-PASS
FILTER
IC112
(1/2)
LOW-PASS
FILTER
IC112
(2/2)
HEADPHONE
AMP
IC802
INV.
IC202
UNICORN
NET MD USB I/F
IC201
D
C
E
SWDT, SCLK
DIN1, LRCKI,
DATAI, XBCKI
DATAI, XBCKI
S751
TIMER
•
SIGNAL PATH
RESET
XIN
XOUT
X15
10MHz
REC
OFF
+3.3V
PLAY
SYSTEM CONTROLLER
IC1 (2/2)
S.RST
13
14
12
11
15
16
17
19
21
3
2
AOUTL+
AOUTL–
26
25
AOUTR+
AOUTR–
28
27
9
8
39
D.VOL 0(A)
85
D.VOL 1(B)
86
40
15
13
68
69
92
67
62
61
73
LED DRIVE
Q758
D758
(SF EDIT)
LED DRIVE
Q759
D759
(MD LP)
P4
75
72
66
65
70
38
79
STB
XTAL
EXTAL
81
7
5
75
NET MD_SI
UCS
URESET
IUPLLSW
RESET
PLLSW
CPUINT
CPUXCS
CPUSI
CPUSO
CPUCK
DSPIF0
DSPIF1
DSPIF2
DSPIF2
DSPIF3
DSPCLK
DIN1
2
4
LRCKI
XBCKI
XBCKI
DATAI
6
76
77
78
5
4
88
87
1
3
ROTARY
ENCODER
A
B
B
1
2
1 2 84
19 12
–32V
REGULATOR
IC451
–39V
(FL DRIVER (IC771) B–)
+6V
REGULATOR
IC141
–6V
REGULATOR
IC241
+3.3V
REGULATOR
IC401
RELAY
+5V
RECT
D431,432
RECT
D401,402
RECT
D411-414
RELAY +5V
REGULATOR
Q411
TR950
POWER
TRANSFORMER
RELAY
DRIVE
Q911
6
IC681
WAVE
SHAPER
9
IC406
RESET
RESET
VCC
3
5
D404
+3.3V
(SYS)
(SYS)
+3.3V
(BACKUP)
D406
D405
BT404
LITHIUM
BATTERY
CN404
OUT
VD +5V
+5V
+6V
-6V
VIN
3
1
+3.3V
REGULATOR
Q471
IC421
+5V
REGULATOR
VT +3.3V
REMOTE CINTROL
RECEIVER
IC761
4
22
21
34
7
51
52
53
56
57
58
3
PLL
OSC
X201
12MHz
47
46
CONTROL
AUDIO
8
10
11
5
USB
USB EN
USBSW
D201
CN203
DP
USB
DM
RAM
MGR
KEY
39
1
2
3
4
35
40
42
L
R
P3
LED DRIVE
Q757
D757
(FILTER)
74
KEYBOARD
OFF SWITCH
Q805
J801
KEYBOARD
+5V
DATA
CLK
6
4
3
2
1
5
BUFFER
Q803,804
BUFFER
Q801,802
: PLAY (ANALOG OUT)
: REC (ANALOG IN)
(Page 39)
(Page 39)
(Page 39)
(Page 39)
(Page 39)
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