CD-425M/4260M/4700M/DPF-J6030
4
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Description
1
A16(1M)
O
No used.
2
A17
O
No connection.
3
SCL
O
No connection.
4
SDA
I/O
No connection.
5
RD
O
SRAM read strobe.
6
WR
O
SRAM write strobe
7
CE
O
Chip selector
8
ASTB(CE)
O
No connection.
9
VDD
-
Power 5V).
10
RMUTE
O
Analog muting signal output.
11
RWRR
O
No connection.
12
RWR
I
No connection.
13
RTRN
I
No connection.
14-21
L-D7-D0
O
No connection.
22
VPP
-
GND.
23
+5VPWM
O
Disc sensor ON/OFF. L:on
24
R-M-CW
O
Mechanism rotary motor(+). H:CCW
25
R-M-CCW
O
Mechanism rotary motor(-). H:CW
26
MON
O
Control port of poor focus works.
27
S3-SW
I
Mechanism address detector switch.
28
S2-SW
I
Mechanism address detector switch.
29
REG-ON
O
Power ON/OFF control.
30
LOADM- (IN2)
O
Loading motor(-) for main pickup.
31
LOADM+ (IN1)
O
Loading motor(+) for main pickup.
32
LDC
O
Laser on/off. L: Laser diode on.
33
SCLK
O
Sens serial data read clock.
34
SENS
I
SENS signal input.
35
CLK
O
Serial data clock.
36
XLAT
O
CXD2587Q latch. H
î
L:latch
37
VDD
-
Power 5V).
38,39
X1,2
-
Main system clock(12.5MHz).
40
VSS
-
GND.
41
XT2
-
No connection.
42
XT1
I
GND.
43
RESET
I
System reset signal input.
44
DATA
O
Serial data output.
45
MUTEG(SYSTEM)
O
System muting control output.
46
SCOR
I
Sub code synchro detection.
47
POWER
I
Power key input terminal.
48
REM
I
Remote control signal input.
49
SBUSY
I/O
Serial busy signal I/O.
50
SDATA
I/O
Serial data signal I/O.
51
AVDD
-
Power 5V).
52
AVREF
-
A/D reference power supply.
53
PROTECT
I
Detection signal input of protection.
54
UNLOAD-SW1
I
Unloading switch for main pickup.
55
LOAD-SW1
I
Loading switch for main pickup.
56
S1-SW
I
Mechanism address detector switch.
57
DISC-SW2
I
Disc2 sensor input..
58
DISC-SW
I
Disc sensor.
59
JOG2
I
Encoder signal input.
60
JOG1
I
Encoder signal input.
3. Microprocessor pin description (X32, IC6) :UPD784217GF501