Panasonic JU-257A Service Guide - Page 3

Mb Fdu, Panasonic Ju-257a-081p, Panasonic Ju-257a-101p, Sa450

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Peripherals - Pocket Service Guide 1.44 MB FDU PANASONIC JU-257A-081P PANASONIC JU-257A-101P SA450 4 JUMPER DESCRIPTION D0 Drive selected as DRIVE 0 D1 Drive selected as DRIVE 1 D2 Drive selected as DRIVE 2 D3 Drive selected as DRIVE 3 MO Spindle motor controlled by the Motor On signal MS Spindle motor controlled by the Drive Select signal NC Pin 2 of the interface connector is not connected HD HD is the pin 2 output signal TM Terminator AT Mode Select PS2 (OFF) or PCAT (ON) SETTING FOR JU-257A-081P OFF ON OFF OFF ON OFF SETTING FOR JU-257A-101P OFF ON OFF OFF ON OFF OFF OFF OFF ON ON ON OFF OFF 3.5" MICRO FLOPPY DISK DRIVES 4-3

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1.44 MB FDU
PANASONIC JU-257A-081P
PANASONIC JU-257A-101P
SA450
JUMPER
DESCRIPTION
SETTING FOR
JU-257A-081P
SETTING FOR
JU-257A-101P
D0
Drive selected as DRIVE 0
OFF
OFF
D1
Drive selected as DRIVE 1
ON
ON
D2
Drive selected as DRIVE 2
OFF
OFF
D3
Drive selected as DRIVE 3
OFF
OFF
MO
Spindle motor controlled by the Motor On signal
ON
ON
MS
Spindle motor controlled by the Drive Select
signal
OFF
OFF
NC
Pin 2 of the interface connector is not connected
OFF
OFF
HD
HD is the pin 2 output signal
OFF
ON
TM
Terminator
ON
ON
AT
Mode Select PS2 (OFF) or PCAT (ON)
OFF
OFF
4
Peripherals - Pocket Service Guide
3.5" MICRO FLOPPY DISK DRIVES
4-3