Sony DMP-1000P, Руководство по обслуживанию, Страница: 58 / 79

5-61
Confidential
DMP-1000P (AEP)
•
DK-39E BOARD IC2101
µ
PD72069GF-3BA (FLOPPY DISK DRIVE CONTROLLER)
Pin No. Pin Name I/O Description
1 NC —
Not used (open)
2 GND3 —
Ground terminal (buffer system)
3 NC —
Not used (open)
4 EM2 O
Spindle motor on/off control signal output of the drive unit Not used (open)
5 EM1 O
Spindle motor on/off control signal output of the drive unit Not used (open)
6 GND3 —
Ground terminal (buffer system)
7 EM0 O
Spindle motor on/off control signal output of the drive unit Not used (open)
8 DIR O
Signal specifying the seek direction is output to the floppy disk drive unit
“L”: centripetal direction, “H”: centrifugal direction
9 GND3 —
Ground terminal (buffer system)
10 STEP O
Signal generating seek pulses is output to the floppy disk drive unit
11 WDATA O
Written data output to the floppy disk drive unit
12 GND3 —
Ground terminal (buffer system)
13 WE O
Signal specifying data writing to drive is output to the floppy disk drive unit
14 ENIDX I
Signal that makes INDEX signal and RDATA signal active is input from the floppy disk drive
unit Fixed at “L” in this set
15 NC —
Not used (open)
16 VDD2 —
Power supply terminal (+5V) (analog system)
17 NC —
Not used (open)
18 CGP1 O
Phase error in sub PLL system is output
19 NC —
Not used (open)
20 CGP2 O
Phase error in sub PLL system is output
21 GND2 —
Ground terminal (analog system)
22 LPF1 O
Phase error in main PLL system is output
23 LPF2 O Phase error in main PLL system is output
24 TRK0 I
Signal showing that the head of drive positions at cylinder 0 is input from the floppy disk drive
unit
25 NC — Not used (open)
26 WPRT I Signal showing that the medium is in write protect status is input from the floppy disk drive unit
27 RDATA I Read data input from the floppy disk drive unit
28, 29 NC — Not used (open)
30 READY I Signal showing that the drive is ready is input from the floppy disk drive unit
31 2SIDE I
Signal showing that a both sided medium is inserted in the drive is input
Not used (fixed at “L”)
32 FLT I Signal showing that the drive is in fault status is input Not used (fixed at “H”)
33 ENPCS I Not used (fixed at “L”)
34 ACTL I
Initial setting signal to select active level of drive interface signal is input
Fixed at “H” in this set (Set the active level is “L”)
35 MSEL I Not used (fixed at “L”)
36 SIDE O Signal selecting the head of both sided drive is output to the floppy disk drive unit
37 GND3 — Ground terminal (buffer system)
38 FLTR O Signal to reset the drive fault status is output Not used (open)
39 HDLD O Signal setting the head of drive in load status is output Not used (open)
40 GND3 — Ground terminal (buffer system)
41 LCT O
Signal showing that the head of drive positions at the inside from No. 43 cylinder is output
Not used (open)
42, 43 VDD1 — Power supply terminal (+5V) (digital system)