Sony MDS-PC2 Service Manual ▷ View online
49
Function
Pin No.
Pin Name
I/O
48
49
50, 51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
D1
D0
D2, D3
MVCI
ASYO
ASYI
AVDD
BIAS
RFI
AVSS
PCO
FILI
FILO
CLTV
PEAK
BOTM
ABCD
FE
AUX1
VC
ADIO
AVDD
ADRT
ADRB
AVSS
SE
TE
DCHG
APC
ADFG
F0CNT
XLRF
CKRF
DTRF
APCREF
TEST0
TRDR
Data input/output for DRAM
Clock input from an external VCO (Fixed at “L”)
Playback EFM duplex signal output
Playback EFM comparator slice level input
+3V power supply (Analog)
Playback EFM comparator bias current input
Playback EFM RF signal input
Ground (Analog)
Phase comparison output for the recording/playback EFM master PLL
Filter input for the recording/playback EFM master PLL
Filter output for the recording/playback EFM master PLL
Internal VCO control voltage input for the recording/playback EFM master PLL
Light amount signal peak hold input from the CXA2523R
Light amount signal bottom hold input from the CXA2523R
Light amount signal input from the CXA2523R
Focus error signal input from the CXA2523R
Auxiliary A/D input
Middle point voltage (+1.5V) input from the CXA2523R
Monitor output of the A/D converter input signal (Not used)
+3V power supply (Analog)
A/D converter operational range upper limit voltage input (Fixed at “H”)
A/D converter operational range lower limit voltage input (Fixed at “L”)
Ground (Analog)
Sled error signal input from the CXA2523R
Tracking error signal input from the CXA2523R
Connected to +3V power supply
Error signal input for the laser digital APC (Fixed at “L”)
ADIP duplex FM signal input from the CXA2523R (22.05 ± 1 kHz)
Filter f
0
control output to the CXA2523R
Control latch output to the CXA2523R
Control clock output to the CXA2523R
Control data output to the CXA2523R
Reference PWM output for the laser APC
PWM output for the laser digital APC (Not used)
Tracking servo drive PWM output (–)
I/O
I/O
I/O
I (S)
O
I (A)
—
I (A)
I (A)
—
O (3)
I (A)
O (A)
I (A)
I (A)
I (A)
I (A)
I (A)
I (A)
I (A)
O (A)
—
I (A)
I (A)
—
I (A)
I (A)
I (A)
I (A)
I (S)
O
O
O
O
O
O
O
• Abbreviation
EFM: Eight to Fourteen Modulation
PLL : Phase Locked Loop
VCO: Voltage Controlled Oscillator
PLL : Phase Locked Loop
VCO: Voltage Controlled Oscillator
50
Function
Pin No.
Pin Name
I/O
86
87
88
89
90
91
92
93
94
95
96 to 98
99
100
TFDR
DVDD
FFDR
FRDR
FS4
SRDR
SFDR
SPRD
SPFD
FGIN
TEST1 to TEST3
DVSS
EFMO
O
—
O
O
O
O
O
O
O
I (S)
I
—
O
Tracking servo drive PWM output (+)
+3V power supply (Digital)
Focus servo drive PWM output (+)
Focus servo drive PWM output (–)
176.4 kHz clock signal output (X’tal) (Not used)
Sled servo drive PWM output (–)
Sled servo drive PWM output (+)
Spindle servo drive PWM output (–)
Spindle servo drive PWM output (+)
Test input (Fixed at “L”)
Ground (Digital)
EFM output when recording
• Abbreviation
EFM: Eight to Fourteen Modulation
51
1, 2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24 to 27
28
29
30
31
32
33
34
35
36
37
38 to 41
42, 43
44
45
46
47
48
49
50
51
52
53
54
55
56
57, 58
59
Pin No.
Pin Name
I/O
Function
• IC501 System Control (M30620MC-406FP) (MAIN board)
O
O
O
I
I
I
I
—
O
O
I
O
—
I
—
I
I
I
O
O
—
I
O
O
O
O
O
I
O
O
O
O
O
O
I
O
O
O
O
O
O
O
I
I
I
I
O
O
O
I
Not used (Fixed at “L”)
C1 error rate voltage output (Fixed at “L”) (Not used)
AD error rate voltage output (Fixed at “L”) (Not used)
ADIP sync or subcode Q sync input from CXD2654R
Remote controls
A1 Control input (Fixed at “L”)
Data bus changed input (Fixed at “L”)
Ground
Not used (Fixed at “L”)
Not used (Fixed at “L”)
System rest input
Main clock output (7.0MHz)
Ground
Main clock input (7.0MHz)
+3.3V power supply
(Fixed at “H”)
Digital in sync input
Power down detection input “L”: Power down
Not used
Not used
Not used
Interrupt status input from CXD2654R
Not used
Serial clock signal output to IC301
Not used
Serial data signal input to IC301
Writing data signal output to the serial bus
Reading data signal input from the serial bus
Clock signal output to the serial bus
Chip select signal output to the display driver
Serial data signal output to the display driver
Not used (Fixed at “L”)
Serial clock signal output to the display driver
Not used
Not used
Not used
A1 output
Not used
Serial mode signal output to IC301
Not used
Reset: “L”
DA line out muting output
Mute: “L”
Strobe signal output to the power supply circuit
Power supply ON: “H”, stand by: “L”
Detection input from the chucking-in switch
“L”: Chucking
Not used (Fixed at “L”)
Detection input from the loading out switch. Loaded out position: “L”, Others: “H”
Loading motor control input
Loading motor control output
Loading motor voltage control output
Low voltage: “H”
Not used (Fixed at “L”)
Detection signal input from the recording position detection switch
NC
C1ER
ADER
SQSY
RMC
A1 IN
BYTE
CNVSS
XIN-T
XOUT-T
S.RST
XOUT
GND
XIN
+3.3V
NMI
DQSY
P.DOWN
KEYBOARD CLK
KEYBOARD DATA
BEEP OUT
XINIT
NC
L3 CLOCK
NC
LC DATA
SWDT
SRDT
SCLK
FLCS
FLDATA
NC
FLCLK
NC
JOG1, JOG0
NC
A1 OUT
NC
L3 MODE
DA.RST
MUTE
STB
CHACK IN
NC
PACK-OUT
LDIN
LDOUT
LD-LOW
NC
REC-P
52
Pin No.
Pin Name
I/O
Function
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
PB-P
REC/PB
+3.3V
NC
GND
SDA
MNT3 (SLOCK)
WR PWR
PROTECT
REFLECT
LDON
SENS
NMT1 (SHOCK)
DIG-RST
MNT2 (XBUSY)
XLATCH
MOD
LIMIT-IN
MNT0 (FOK)
SCL
SCTX
CLKSET0
CLKSET1
LED0
LED1
OPT DEL
OPT SEL
MODE SEL 0
MODE SEL 1
REC
BEEP SW
NC
NC
KEY 3
KEY 2
KEY 1
AVSS
KEY0
VREF
+3.3V
MONO/ST
I
O
—
O
—
I/O
I
O
I
I
O
I
I
O
I
O
O
I
I
O
O
I
I
O
O
O
O
I
O
O
O
I
I
I
I
I
—
I
—
—
I
Detection signal input from the playback position detection switch
Not used
Write: “H”
+3.3V power supply
Not used (Fixed at “L”)
Ground
Data signal input/output pin with the backup memory
In the state of spindle servo lock from the CXD2564R
Write power ON/OFF output
Recording-protection claw detection input from the protection detection switch
Protect: “H”
Disk reflection rate detection input from the reflect detection switch
Disk with low reflection rate: “H”
Laser ON/OFF control output
“H”: Laser ON
Internal status (SENSE) input from the CXD2654R
Track jump signal input from the CXD2654R
Digital rest signal output to the CXD2654R and motor driver
Reset: “L”
In the state of executive command from the CXD2654R
Latch signal output to the serial bus
Laser modulation switching signal output
Detection input from the limit switch
Sled limit-In: “L”
Focus OK signal input from the CXD26504R
“H” is input when focus is on
Clock signal output to the backup memory
Writing data transmission timing output to the CXD2654R
Shared with the magnetic head ON/OFF output
Clock destination select pin
US, Canadian: “L”, Except US, Canadian :“H”
Clock destination select pin
US, Canadian: “H”, Except US, Canadian :“L”
Not used
Beep switch
Not used
Key input pin (A/D input)
Ground (Analog)
Key input pin (A/D input)
A/D reference voltage (Fixed at “H”)
+3.3V power supply
Monaural, stereo change input
Monaural: “L”
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