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Model
MDS-S9
Pages
62
Size
3.59 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
mds-s9.pdf
Date

Sony MDS-S9 Service Manual ▷ View online

49
MDS-S9
 MAIN BOARD   IC1   M30805MG-216GP (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
FL-DATA
O
Serial data output to the fluorescent indicator tube/LED driver (IC761)
2
FL-CLK
O
Serial data transfer clock signal output to the fluorescent indicator tube/LED driver (IC761)
3
A1 IN
I
Sircs remote control signal input terminal of the CONTROL A1II    Not used (fixed at “H”)
4
RMC
I
Remote control signal input from the remote control receiver (IC781)
5 to 7
NC
O
Not used (open)
8
MUTE
O
Audio line muting on/off control signal output    “L”: line muting on, “H”: line muting off
9
RESET
O
Reset signal output to the A/D, D/A converter (IC500)    “L”: reset
10
LATCH
O
Serial data latch pulse signal output to the A/D, D/A converter (IC500)
11
LD-LOW
O
Loading motor drive voltage control signal output for the loading motor driver (IC440)
“H” active
12
LDIN
O
Motor control signal output to the loading motor driver (IC440)    “L” active    *1
13
LDOUT
O
Motor control signal output to the loading motor driver (IC440)    “L” active    *1
Laser modulation selection signal output to the HF module switch circuit
Stop: “L”, Playback power: “H”,
Recording power:
14
MOD
O
15
BYTE
I
External data bus line byte selection signal input    “L”: 16 bit, “H”: 8 bit (fixed at “L”)
16
CNVSS
Ground terminal
17
XCIN
I
Sub system clock input terminal (32.768 kHz)    Not used (open)
18
XCOUT
O
Sub system clock output terminal (32.768 kHz)    Not used (open)
19
RESET
I
System reset signal input from the regulator (IC400)    “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
20
XOUT
O
Main system clock output terminal (10 MHz)
21
VSS
Ground terminal
22
XIN
I
Main system clock input terminal (10 MHz)
23
VCC
Power supply terminal (+3.3V)
24
NMI
I
Non-maskable interrupt input terminal    “L” active (fixed at “H” in this set)
25
DQSY
I
Digital In U-bit CD format subcode Q sync (SCOR) input from the CXD2662R (IC151)
“L” is input every 13.3 msec    Almost all, “H” is input
26
PDOWN
I
Power down detection signal input from the regulator (IC400)
“L”: power down, normally: “H”
27
SQSY
I
Subcode Q sync (SCOR) input from the CXD2662R (IC151)
“L” is input every 13.3 msec    Almost all, “H” is input
28
KEYBD-CLK
I
Serial data transfer clock signal input from the key board    Not used (fixed at “H”)
29
LDON
O
Laser diode on/off control signal output to the automatic power control circuit    “H”: laser on
30
LIMIT-IN
I
Detection signal input from the sled limit-in detect switch (S101)
The optical pick-up is inner position when “L”
31
A1 OUT
O
Sircs remote control signal output terminal of the CONTROL A1II    Not used (open)
2 sec
0.5 sec
*1  Loading motor (M103) control
LOADING
EJECT
BRAKE
STOP
LDIN (pin qs)
“L”
“H”
“L”
“H”
LDOUT (pin qd)
“H”
“L”
“L”
“H”
Terminal
Mode
50
MDS-S9
Pin No.
Pin Name
I/O
Description
32
XINT
I
Interrupt status input from the CXD2662R (IC151)
33
BEEP
O
Beep sound drive signal and headphone muting on/off control signal output terminal
Not used (open)
34
LRCKI
O
L/R sampling clock signal (44.1 kHz) output to the CXD2662R (IC151)
35
WRPWR
O
Laser power selection signal output to the CXD2662R (IC151) and HF module switch circuit
“L”: playback mode, “H”: recording mode
36
I2CCLK
I/O
Serial data transfer clock signal input/output terminal for the IIC bus
37
I2CDAT
I/O
Serial data input/output terminal for the IIC bus
38
SWDT
O
Writing serial data signal output to the CXD2662R (IC151)
39
VCC
Power supply terminal (+3.3V)
40
SRDT
I
Reading serial data signal input from the CXD2662R (IC151)
41
VSS
Ground terminal
42
SCLK
O
Serial data transfer clock signal output to the CXD2662R (IC151)
43
REC-SW
I
Detection signal input from the recording position of over write head (HR901) detect switch
(S105)    “L” recording mode
44
TX0 (CLIP)
O
Serial data output to the CXD2662R (IC151)
45
RX0 (CLIP)
I
Serial data input
46
CLK (CLIP)
O
Bit clock signal (2.8224 MHz) output to the CXD2662R (IC151)
47
DIG-RST
O
Reset signal output to the CXD2662R (IC151) and BH6519FS (IC141)    “L”: reset
48
SENS
I
Internal status (SENSE) input from the CXD2662R (IC151)
49
PLAY-SW
I
Detection signal input from the playback position of over write head (HR901) detect switch
(S104)    “L” playback mode
50
XLATCH
O
Serial data latch pulse signal output to the CXD2662R (IC151)
51
OUT-SW
I
Detection signal input from the loading-out detect switch (S103)
“L” at a load-out position, others: “H”
52
RDY
O
Not used (open)
53
ALE
O
Not used (open)
54
HOLD
O
Not used (open)
55
HLDA
O
Not used (open)
56
MNT2 (XBUSY)
I
Busy monitor signal input from the CXD2662R (IC151)
57
VSS
Ground terminal
58
MNT1 (SHOCK)
I
Track jump detection signal input from the CXD2662R (IC151)
59
VCC
Power supply terminal (+3.3V)
60
EEP-WP
O
Writing protect signal output to the EEPROM (IC195)
61
SDA
I/O
Two-way data bus with the EEPROM (IC195)
62
BCLK
O
Not used (open)
63
OE
O
Data reading strobe signal output to the flash memory    “L” active    Not used (open)
64
BHE
O
Not used (open)
65
WE
O
Writing enable signal output to the flash memory    “L” active    Not used (open)
66
SCL
O
Clock signal output to the EEPROM (IC195)
67
REFLECT SW
I
Detection signal input from the disc reflection rate detect switch (S102-1)
“L”: high reflection rate disc, “H”: low reflection rate disc
68
PROTECT SW
I
REC-proof claw detection signal input from the protect detect switch (S102-2)
“H”: write protect
69 to 71
CS0 to CS2
O
Chip select signal output to the flash memory    “L” active    Not used (open)
72, 73
A20, A19
O
Address signal output to the flash memory    Not used (open)
74
VCC
Power supply terminal (+3.3V)
75
A18
O
Address signal output to the flash memory    Not used (open)
51
MDS-S9
Pin No.
Pin Name
I/O
Description
76
VSS
Ground terminal
77 to 85
A17 to A9
O
Address signal output to the flash memory    Not used (open)
86 to 89
SEL1 to SEL4
I
Not used (open)
90
WP
O
Writing protect signal output to the flash memory    “L” active    Not used (fixed at “L”)
91
VCC
Power supply terminal (+3.3V)
92
A8
O
Address signal output to the flash memory    Not used (open)
93
VSS
Ground terminal
94 to 101
A7 to A0
O
Address signal output to the flash memory    Not used (open)
102 to 113
D15 to D4
I/O
Two-way data bus with the flash memory    Not used (open)
114
KEYBD-CLKCTL
O
Clock control signal output to the key board    Not used (pull down)
115
I2CBUSY
I
Busy monitor signal input from the IIC bus
116
KEYBD-DAT
I
Serial data input from the key board    Not used (fixed at “H”)
117
REC VOL A 
O
Not used (open)
118
REC VOL B
O
Not used (open)
119 to 122
D3 to D0
I/O
Two-way data bus with the flash memory    Not used (open)
123
JOG0
I
JOG dial pulse input from the rotary encoder (S713 . AMS >) (A phase input)
124
JOG1
I
JOG dial pulse input from the rotary encoder (S713 . AMS >) (B phase input)
125
LATCH
O
Not used (open)
126
REC
O
Power on/off control signal output terminal for the beep sound drive    Not used (open)
127
COAX/OPT
O
Optical in or coaxial in selection signal output terminal    “L”: optical in, “H”: coaxial in
Not used (open)
128
FL-CS
O
Chip select signal output to the fluorescent indicator tube/LED driver (IC761)
129
I2CPOWER
I
Power supply detection signal input from the IIC bus
130
VSS
Ground terminal
131
STB
O
Relay drive signal output for the power on/off    “L”: standby, “H”: power on
132
VCC
Power supply terminal (+3.3V)
133
IOP
I
Optical pick-up voltage detection signal input from the automatic power control circuit
134
DESTINATION
I
Destination setting input terminal    Fixed at “L” in this set
135
MODEL
I
Model setting input terminal    Fixed at “M” in this set
136
BEEP SW
I
Beep switch input terminal    Not used (fixed at “L”)
137
KEY3
I
Key input terminal (A/D input)    Not used (fixed at “H”)
138
KEY2
I
Key input terminal (A/D input)    S721 to S724 and S726 (INPUT, PLAY MODE, REC MODE,
LEVEL/DISPLAY/CHAR, I/1) keys input
139
KEY1
I
Key input terminal (A/D input)
S711 to S715 (MENU/NO, YES, PUSH ENTER, CLEAR, Z) keys input
140
AVSS
Ground terminal (for analog system )
141
KEY0
I
Key input terminal (A/D input)    S701 to S705 (z, x, M, m, u) keys input
142
VREF
I
Reference voltage (+3.3V) input terminal (for A/D converter)
143
AVCC
Power supply terminal (+3.3V) (for analog system )
144
NC
O
Not used (pull down)
52
MDS-S9
7-1. CASE  SECTION
SECTION  7
EXPLODED  VIEWS
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Parts Color Cabinet's Color
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
1-681-806-11 PT BOARD
2
4-228-643-11 SCREW (+BVTTWH M3), STEP
3
3-363-099-21 SCREW (CASE 3 TP2)
4
4-229-363-51 CASE
5
1-792-811-11 WIRE (FLAT TYPE) (23 CORE)
6
1-792-812-11 WIRE (FLAT TYPE) (27 CORE)
0 7
1-777-071-61 CORD, POWER
* 8
3-703-244-00 BUSHING (2104), CORD
9
4-235-438-01 PANEL, BACK
10
A-4726-240-A MAIN BOARD, COMPLETE
11
4-965-822-01 FOOT
13
4-221-887-11 SCREW, +PTTWH (M3) (S) TITE
14
4-228-689-01 INSULATOR
* 15
1-569-972-21 SOCKET, SHORT 2P
0 TR900
1-435-544-11 TRANSFORMER, POWER
not supplied
MDM-7A
Front panel section
1
13
2
not
supplied
TR900
3
4
#3
#3
#3
#3
#3
5
6
3
8
10
9
15
11
14
14
14
14
7
A
A
B
B
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