Sony SCD-X501ES Service Manual ▷ View online
33
SCD-X501ES
• IC Pin Function Description
WALTZ-RF BOARD IC001 SP3726A (SA-CD/CD RF AMP, FOCUS/TRACKING ERROR AMP)
Pin No.
Pin Name
I/O
Description
1
RFIP
RF signal input from the optical traverse unit
2
RFIN
RF signal input from the optical traverse unit
3
CP
Tracking low-pass filter terminal
4
WIN
Wobble detection signal input terminal Not used (Open)
5
WPP
Wobble push-pull signal output terminal Not used (Open)
6
CN
Tracking low-pass filter terminal
7 to 10
A2 to D2
Photo detector interface input from the optical traverse unit
(AC coupled input for the DPD and wobble)
(AC coupled input for the DPD and wobble)
11 to 14
D to A
Photo detector interface input from the optical traverse unit (main)
15, 16
E, F
Photo detector interface input from the optical traverse unit (sub)
17
SIGDETB
Signal detection signal output terminal Not used (Open)
18
INTR
Interruption control signal input terminal Not used
19
VC
Reference voltage (+2.5V) output to the optical traverse unit
20
VPB
Power supply (+5V) ( for servo block)
21
PGSELO
PDIC gain selection signal output terminal Not used (Open)
22
PD
Automatic power control signal input from the optical traverse unit
23
VNB
Ground (for servo block)
24
LDSELO
Automatic power control laser diode selection signal output to the optical traverse unit
25
DVDLD
SA-CD automatic power control signal output terminal
26
CDLD
CD automatic power control signal output terminal
27
XLDON
Laser diode on/off control signal input from the master controller “L”: laser diode on
28
MEVO
Envelope signal output terminal for mirror
29
MIN
RF signal input terminal for mirror
30
MP
Mirror top hold terminal
31
MB
Mirror bottom hold terminal
32
MLPF
Mirror low-pass filter terminal
33
MIRR
Mirror signal output to the SA-CD/CD decoder
34
BYP2
Servo AGC gain control terminal
35
PII
Pull-in signal input terminal
36
PI
Pull-in signal output to the SA-CD/CD decoder
37
TZC
Tracking zero crossing signal output to the SA-CD/CD decoder
38
DFT
Defect signal output to the SA-CD/CD decoder
39
VCI
Middle point voltage input from the motor/coil driver
40
TZIN
Tracking zero crossing signal input terminal
41
TE
Tracking error signal output to the SA-CD/CD decoder
42
FE
Focusing error signal output to the SA-CD/CD decoder
43
TPH
Pull-in top hold terminal
44
MON
Monitor signal output to the SA-CD/CD decoder
45
SRD
Serial data output to the SA-CD/CD decoder
46
SWD
Serial data input from the SA-CD/CD decoder
47
SCLK
Serial data transfer clock signal input from the SA-CD/CD decoder
48
SDEN
Chip select signal input from the SA-CD/CD decoder
49
V33
Power supply (+3.3V) (for CMOS output buffers)
50
RX
Reference resistor input terminal
51
TPA
RF top hold terminal
52
MEV
RF bottom envelope terminal
I
I
—
I
O
—
I
I
I
O
I
O
—
O
I
—
O
O
O
I
O
I
—
—
—
O
—
I
O
O
O
I
I
O
O
—
O
O
I
I
I
—
I
—
—
34
SCD-X501ES
Pin No.
Pin Name
I/O
Description
53
VNA
Ground (for RF block and serial port)
54, 55
FNN, FNP
Differential filter normal signal output terminal
56, 57
DIP, DIN
Analog signal input terminal for RF single buffer
58
BYP
RF AGC gain control terminal
59
SIGO
Single-ended RF signal output to the SA-CD/CD decoder
60
VPA
Power supply (+5V) (for RF block and serial port)
61, 62
AIP, AIN
AGC amplifier signal input terminal
63, 64
ATON, ATOP
Differential attenuator signal output terminal
—
O
I
—
O
—
I
O
35
SCD-X501ES
MAIN BOARD IC705 HD6432238RP02TEV (MASTER CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
SDATA_DAC
Serial data output to the D/A converter
2
SCLK_DAC
Serial data transfer clock signal output to the D/A converter
3
SLATR_DAC
Serial data latch pulse signal output to the D/A converter
4 to 11
CD0 to CD7
Two-way data bus with the SA-CD/CD decoder
12
CVCC
Power supply (+3.3V)
13
CA0
Address signal output to the SA-CD/CD decoder
14
VSS0
Ground
15 to 22
CA1 to CA8
Address signal output to the SA-CD/CD decoder
23, 24
PB1, PB2
Not used (Open)
25
LOAD_S0
Loading in detection switch input terminal
26
LOAD_S2
Not used (Open)
27
LOAD_S1
Loading out detection switch input terminal
28
TSENS
Not used (Open)
29
DSENS
Not used (Open)
30
TRAY_IN
Loading motor drive signal (disc tray in direction) output terminal
31
RS232CTX
Transmit data output terminal Not used
32
RS232CRX
Receive data input terminal Not used
33
TRAY_OUT
Loading motor drive signal (disc tray out direction) output terminal
34
P10
Not used (Open)
35
DRV_ON
Stop signal output for the sled motor and focus/tracking coil
36
SP_ON
Stop signal output for the spindle motor
37
P13
Not used (Open)
38
XLDON
Laser diode on/off control signal output to the SA-CD/CD RF amplifier “L”: laser diode on
39, 40
TRMP, TRMM
Tray motor control signal output terminal Not used
41
P17
Not used (Open)
42
AVSS
Ground
43
DIAG
DIAG mode on/off control signal input terminal Not used
44
P96
Not used
45 to 50
P47 to P42
Not used
51
MODEL
Model setting terminal
52
JIT
Jitter value input from the SA-CD/CD decoder
53
VREF
Reference voltage input terminal
54
AVCC
Power supply (+3.3V)
55, 56
MD0, MD1
CPU operation mode setting terminal
57
OSC2
Sub system clock output terminal Not used (Open)
58
OSC1
Sub system clock input terminal Not used (Connected to Ground)
59
XRST
System reset signal input from the reset signal generator “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
60
XNMI
Non-maskable interrupt signal input terminal Not used
61
XSTBY
Standby on/off control signal input terminal Not used
62
VCC
Power supply (+3.3V)
63
XTAL
Main system clock output terminal Not used (Open)
64
VSS1
Ground
65
EXTAL
Main system clock input terminal (11.2896 MHz)
66
FWE
Write enable signal input terminal for flash memory Not used
67
MD2
CPU operation mode setting terminal
O
O
O
I/O
—
O
—
O
O
I
I
I
I
I
O
O
I
O
O
O
O
O
O
O
O
—
I
I
I
I
I
I
—
I
O
I
I
I
I
—
O
—
I
I
I
36
SCD-X501ES
Pin No.
Pin Name
I/O
Description
68
PF7
O
Not used (Open)
69
AS
O
Not used (Open)
70
XRD
O
Read enable signal output to the SA-CD/CD decoder
71
XWR
O
Write enable signal output to the SA-CD/CD decoder
72
XWRST
O
Reset signal output to the SA-CD/CD decoder “L”: reset
73
XWAIT
I
Wait signal input from the SA-CD/CD decoder
74
SMUTE
O
Soft muting on/off control signal output to the SA-CD/CD decoder “H”: muting on
75
EPR/B
I
Read/busy signal input from the EEPROM
76
XEPCS
O
Chip select signal output to the EEPROM
77
XEWC
O
WC signal output to the EEPROM
78
P32
O
Not used (Open)
79
EEPSO
O
Serial data output to the EEPROM
80
EEPSI
I
Serial data input from the EEPROM
81
EEPSCK
O
Serial data transfer clock signal output to the EEPROM
82
P36
O
Not used (Open)
83
IFSO
O
Serial data output to the display controller
84
IFSI
I
Serial data input from the display controller
85
IFSC
O
Serial data transfer clock signal output to the display controller
86
P74
O
Not used (Open)
87
XCS
O
Chip select signal output to the SA-CD/CD decoder
88 to 90
P72 to P70
I
Not used (Open)
91
XIFINT
I
Interrupt signal input from the display controller
92
XINT0
I
Interrupt signal input from the SA-CD/CD decoder
93
PG2
I
Not used (Connected to Ground)
94
MZR
I
Zero data (R-CH) flag detection signal input from the D/A converter
95
MZL
I
Zero data (L-CH) flag detection signal input from the D/A converter
96
XIFCS
O
Chip select signal output to the display controller
97
R_MUTE
O
Muting on/off control signal (for R-ch) output terminal “L”: muting on
98
L_MUTE
O
Muting on/off control signal (for L-ch) output terminal “L”: muting on
99
INIT_DAC
O
Not used (Open)
100
M/2
O
Multi/2ch selection signal output terminal “L”: 2ch “H”: multi
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