Panasonic JU-257A Service Guide - Page 11

Mb Fdu, Y-e Data Yd-702b-6039b, Y-e Data Yd-702b-6037b, Sa450

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Peripherals - Pocket Service Guide 1.44 MB FDU CONFIGURATION ON DRIVE YD-702B-6037B Y-E DATA YD-702B-6039B Y-E DATA YD-702B-6037B SA450 4 JUMPER DESCRIPTION 300 Enable 300 Kbit/sec transfer rate IF HD Issues the HD Sense signal on pin 2 M2 Spindle motor controlled by the Drive Select signal M1 P1 RY Ready is the signal on pin 34 of the interface connector DC Disk Change is the signal on pin 34 of the interface connector DS3 Drive selected as DRIVE 3 DS2 Drive selected as DRIVE 2 DS1 Drive selected as DRIVE 1 DS0 Drive selected as DRIVE 0 SETTING FOR SETTING FOR YD-702B-6037B YD-702B-6039B OFF OFF OFF ON ON OFF OFF OFF ON OFF OFF OFF OFF OFF ON ON OFF OFF OFF OFF ON ON OFF OFF 3.5" MICRO FLOPPY DISK DRIVES 4-11

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1.44 MB FDU
Y-E DATA YD-702B-6039B
Y-E DATA YD-702B-6037B
SA450
JUMPER
DESCRIPTION
SETTING FOR
YD-702B-6037B
SETTING FOR
YD-702B-6039B
300
Enable 300 Kbit/sec transfer rate
OFF
OFF
IF
OFF
ON
HD
Issues the HD Sense signal on pin 2
ON
OFF
M2
Spindle motor controlled by the Drive Select
signal
OFF
OFF
M1
ON
OFF
P1
OFF
OFF
RY
Ready is the signal on pin 34 of the interface
connector
OFF
OFF
DC
Disk Change is the signal on pin 34 of the
interface connector
ON
ON
DS3
Drive selected as DRIVE 3
OFF
OFF
DS2
Drive selected as DRIVE 2
OFF
OFF
DS1
Drive selected as DRIVE 1
ON
ON
DS0
Drive selected as DRIVE 0
OFF
OFF
CONFIGURATION ON
DRIVE YD-702B-6037B
4
Peripherals - Pocket Service Guide
3.5" MICRO FLOPPY DISK DRIVES
4-11