Sony DMP-1000P Service Manual page 58

• DK-39E BOARD IC2101 µPD72069GF-3BA (FLOPPY DISK DRIVE CONTROLLER)
Pin No. Pin Name
1 NC
2 GND3
3 NC
4 EM2
5 EM1
6 GND3
7 EM0
8 DIR
9 GND3
10 STEP
11 WDATA
12 GND3
13 WE
14 ENIDX
15 NC
16 VDD2
17 NC
18 CGP1
19 NC
20 CGP2
21 GND2
22 LPF1
23 LPF2
24 TRK0
25 NC
26 WPRT
27 RDATA
28, 29 NC
30 READY
31 2SIDE
32 FLT
33 ENPCS
34 ACTL
35 MSEL
36 SIDE
37 GND3
38 FLTR
39 HDLD
40 GND3
41 LCT
42, 43 VDD1
I/O
— Not used (open)
—
Ground terminal (buffer system)
—
Not used (open)
O
Spindle motor on/off control signal output of the drive unit Not used (open)
O Spindle motor on/off control signal output of the drive unit Not used (open)
—
Ground terminal (buffer system)
O
Spindle motor on/off control signal output of the drive unit Not used (open)
Signal specifying the seek direction is output to the floppy disk drive unit
O
"L": centripetal direction, "H": centrifugal direction
— Ground terminal (buffer system)
O
Signal generating seek pulses is output to the floppy disk drive unit
O
Written data output to the floppy disk drive unit
—
Ground terminal (buffer system)
O Signal specifying data writing to drive is output to the floppy disk drive unit
Signal that makes INDEX signal and RDATA signal active is input from the floppy disk drive
I
unit Fixed at "L" in this set
—
Not used (open)
—
Power supply terminal (+5V) (analog system)
—
Not used (open)
O Phase error in sub PLL system is output
—
Not used (open)
O
Phase error in sub PLL system is output
—
Ground terminal (analog system)
O Phase error in main PLL system is output
O
Phase error in main PLL system is output
Signal showing that the head of drive positions at cylinder 0 is input from the floppy disk drive
I
unit
—
Not used (open)
I Signal showing that the medium is in write protect status is input from the floppy disk drive unit
I
Read data input from the floppy disk drive unit
—
Not used (open)
I
Signal showing that the drive is ready is input from the floppy disk drive unit
Signal showing that a both sided medium is inserted in the drive is input
I
Not used (fixed at "L")
I Signal showing that the drive is in fault status is input Not used (fixed at "H")
I
Not used (fixed at "L")
Initial setting signal to select active level of drive interface signal is input
I
Fixed at "H" in this set (Set the active level is "L")
I
Not used (fixed at "L")
O Signal selecting the head of both sided drive is output to the floppy disk drive unit
—
Ground terminal (buffer system)
O
Signal to reset the drive fault status is output Not used (open)
O
Signal setting the head of drive in load status is output Not used (open)
— Ground terminal (buffer system)
Signal showing that the head of drive positions at the inside from No. 43 cylinder is output
O
Not used (open)
—
Power supply terminal (+5V) (digital system)
Description
5-61
Confidential
DMP-1000P (AEP)