CD-4900M/DPF-J9030
5
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Description
56
JOG1
I
Encoder signal B input.
57
DOOR-SW
I
Door open/close detector switch.
58
LOAD-SW2
I
Load switch2 for sub pickup.
59
UNLOAD-SW2
I
Unload switch2 for sub pickup.
60
DISC-SW2
I
Disc2 sensor.
61
VSS
-
GND.
62
LOADM-2
O
Load motor(-) for sub pickup.
63
LOADM+2
O
Load motor(+) for sub pickup.
64
AVREF1
-
D/A reference power supply.
65
RXD2
I
UART communication input.
66
TXD2
O
UART communication output.
67
SQCK/SCK-SW
O
SQCK,SCK(DOT/DSP clock) selector. L:DSP.
68
RXD1
I
UART communication input from sub u-com.
69
TXD1
O
UART communication output to sub u-com.
70
LDC
O
Laser on/off. L: Laser diode on.
71
STB1
O
Strobe signal output to dot driver.
72
SI
I
Data input from dot driver.
73
SQS1
I
Sub code read data input.
74
SO
O
Data output to dot driver.
75
SCK/SQCK
O
Dot driver/sub code read clock.
76-83
A16,14,12,7-3
O
Address output to SRAM.
84~91
D0-7
I/O
SRAM data bus.
92~99
A10,A15,A13,A8,
O
Address output to SRAM.
A9,A11,A0,A1
100
VSS
-
GND.
VOLTAGE
A/D0(33)
A/D1(32)
A/D2(31)
4.1V
-
-
OPERATION
3.3V
-
-
RANDOM
2.5V
-
-
CONFIRM
1.6V
-
REPEAT
CONT.P
0.8V
DOWN
DISP.
PLAY/PAUSE
0V
UP
POWER
STOP
1-3 Key matrix ( ) : IC14 Pin No.
