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Question posted by gcollins36 on February 5th, 2011

Where Can I Buy A Panasonic Model Ju-257a 724p Floppy Drive

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Related Panasonic JU-257A Manual Pages

Service Guide - Page 1

... 1.44 MB disks; As a general rule, all floppy disk drives must be present if the 5.25" drive is compatible with the simple Format command. CONFIGURING DRIVE JUMPERS Jumper settings on 2.88 MB drives. The terminator is always present on 3.5" drives, and is recognized as a 1.44 MB drive. • The 1.44 MB drive can format 720 MB disks by using these disks. 4 • The 2.88 MB drive...

Service Guide - Page 2

... Motor On signal MS Spindle motor controlled by the Drive Select signal DC Disk Change is the signal on pin 34 of the interface connector RY Ready is the signal on pin 34 of the interface connector TM Terminator SETTING OFF ON OFF OFF ON OFF ON OFF ON 4-2 3.5" MICRO FLOPPY DISK DRIVES 1.44 MB FDU Peripherals -

Service Guide - Page 3

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 ...

Service Guide - Page 4

... 1.44 MB FDU PANASONIC JU-257A-083P PANASONIC JU-257A-083PJ PANASONIC JU-257A-103P PANASONIC JU-257A-103PJ SA450 SWITCH DESCRIPTION SW3-0 Drive selected as DRIVE 0 SW3-1 Drive selected as DRIVE 1 SW3-2 Drive selected as DRIVE 2 SW3-3 Drive selected as DRIVE 3 SW2-MO Spindle motor controlled by the Motor On signal SW2-MS Spindle motor controlled by the Drive Select signal SW1-RY Disk...

Service Guide - Page 5

...44 MB FDU PANASONIC JU-257A-293P SA450 4 SWITCH DESCRIPTION SW3-0 Drive selected as DRIVE 0 SW3-1 Drive selected as DRIVE 1 SW3-2 Drive selected as DRIVE 2 SW3-3 Drive selected as DRIVE 3 SW2-MO Spindle motor controlled by the Motor On signal SW2-MS Spindle motor controlled by the Drive Select signal SW1-RY Disk... OFF OFF ON OFF ON OFF OFF ON OFF ON 3.5" MICRO FLOPPY DISK DRIVES 4-5

Service Guide - Page 6

... Guide 1.44 MB FDU PANASONIC JU-257A-84P PANASONIC JU-257A-104P SA450 SWITCH DESCRIPTION SW3-0 SW3-1 SW3-2 SW3-3 SW2-NC SW2-OUT SW1-IN Drive selected as DRIVE 0 Drive selected as DRIVE 1 Drive selected as DRIVE 2 Drive selected as DRIVE 3 Pin... JU-257A-84P OFF ON OFF OFF SETTING FOR JU-257A-104P OFF ON OFF OFF ON OFF OFF ON OFF OFF 4-6 3.5" MICRO FLOPPY DISK DRIVES Peripherals -

Service Guide - Page 7

Pocket Service Guide 1.44 MB FDU PANASONIC JU-257A-294P SA450 4 SWITCH SW3-0 SW3-1 SW3-2 SW3-3 SW2-NC SW2-OUT SW1-IN DESCRIPTION Drive selected as DRIVE 0 Drive selected as DRIVE 1 Drive selected as DRIVE 2 Drive selected as DRIVE 3 Pin 2 of the interface connector is not connected -HD is the output signal on pin 2 of the interface connector +HD is the input signal on...

Service Guide - Page 8

... 0 Drive selected as DRIVE 1 Drive selected as DRIVE 2 Drive selected as DRIVE 3 1.44 MB FDU SONY MP-F17W-82D SETTING OFF ON OFF OFF SA450 JUMPER DS0 DS1 DS2 DS3 HD DESCRIPTION Drive selected as DRIVE 0 Drive selected as DRIVE 1 Drive selected as DRIVE 2 Drive selected as DRIVE 3 HD sense is the signal on pin 2 of the interface connector SETTING OFF ON OFF OFF ON 4-8 3.5" MICRO FLOPPY DISK...

Service Guide - Page 9

Peripherals - Pocket Service Guide 1.44 MB FDU SONY MP-F17W-84 SONY MP-F17W-85 SA450 4 SETTING ON MODEL MP-F17-84 SETTING ON MODEL MP-F17-85 JUMPER DESCRIPTION DS0 DS1 DENSITY STATUS Drive selected as DRIVE 0 Drive selected as DRIVE 1 Density Status is the signal on pin 2 of the interface connector SETTING FOR MP-F17-84 OFF...

Service Guide - Page 11

... 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 Peripherals...

Service Guide - Page 12

Pocket Service Guide 1.44 MB FDU MITSUBISHI MF-355C-58ML MITSUBISHI MF-355C-58MF SA450 JUMPER DESCRIPTION JP2-IS Front LED controlled by the Drive Select signal JP2-IU Front LED controlled by the Ready signal JP3-DS0 Drive selected as DRIVE 0 JP3-DS1 Drive selected as DRIVE 1 JP2-MM Motor start-up by the Motor-On signal...

Service Guide - Page 13

Peripherals - Mode 2M is selected by input signal HDI. SETTING OFF ON OFF OFF ON 3.5" MICRO FLOPPY DISK DRIVES 4-13 Pocket Service Guide 1.44 MB FDU SS01 EPSON SMD1040-418 SA450 4 JUMPER SS01 DESCRIPTION 1-6 Drive selected as DRIVE 0 1-2 Drive selected as DRIVE 1 3-8 Mode is selected by signal HDI. I/F pins 7, 9 and 11 are connected to GND. I /F pins 7, 9 and 11 are open...

Service Guide - Page 14

... 2M is set when input signal HDI is low. I/F pins 7, 9 and 11 are open. 4-5 7-8 Mode is selected by input signal HDI. 1.44 MB FDU SS01 Peripherals - When medium 2HD is inserted, the output signal on pin 9 is at high level. I /F pins 1, 3 and 5 are ... by an internal sensor. 4-5 I /F pins 1, 3 and 5 are connected to the +5 V. SETTING OFF OFF ON 4-14 3.5" MICRO FLOPPY DISK DRIVES

Service Guide - Page 15

I /F pins 7, 9 and 11 are connected to GND. SETTING OFF ON ON OFF OFF 3.5" MICRO FLOPPY DISK DRIVES 4-15 Pocket Service Guide 1.44 MB FDU SS01 EPSON SMD1040-419 SA450 4 JUMPER SS01 1-6 1-2 3-8 4-9 3-4 7-8 4-9 7-8 DESCRIPTION Drive selected as DRIVE 0 Drive selected as DRIVE 1 The mode is selected by a low HDI input signal I/F pins 7, 9 and 11 are connected to GND. Peripherals ...

Service Guide - Page 16

... D HA LHI C B DS0 DS1 A 2 1 JUMPER DS1 DS0 HA HI HO SETTING ON OFF ON OFF OFF DESCRIPTION Drive selected as DRIVE 1 Drive selected as DRIVE 0 Density set automatically (mode 2) Density set by HD IN on pin 2 (mode 1) HD OUT on pin 2 (mode... from FDU from host ON OFF OFF OFF Open - 1.44 MB FDU Peripherals - Key-in or software HD IN from sensor 4-16 3.5" MICRO FLOPPY DISK DRIVES

Service Guide - Page 17

... the HD sense signal on pin 2 Sends the HD sense signal on pin 4 The Ready signal is on pin 34 of the interface connector The Disk Change signal is on pin 34 of the interface connector Drive selected as DRIVE 1 Drive selected as DRIVE 0 SETTING OFF ON OFF OFF ON ON OFF 3.5" MICRO FLOPPY DISK DRIVES 4-17 Peripherals -

Service Guide - Page 18

... GND HD Sensor 11 2 4 1 Amber Green Drive Select Mode Select +5V: HD IN Mode N.C.: LD IN Mode Density Select Ground: 1 MB Only HD Sensor: Auto Select Interface #2 pin: Interface Control Mode Drive ID HD OUT LED Note: The numbers in the circles indicate the number of interface pins connected. 4-18 3.5" MICRO FLOPPY DISK DRIVES 1.44 MB FDU Peripherals -

Service Guide - Page 19

Peripherals - Pocket Service Guide 1.44 MB FDU MITSUMI D359T3 SA450 4 10 9 8 6 7 5 3 4 2 1 JUMPER POSITION 1 2 3 4 5 6 7 8 9 10 DESCRIPTION Not connected Not connected Drive selected as DRIVE 1 Drive selected as DRIVE 2 Drive selected as DRIVE 0 Shift from Normal Density to High Density through disk insertion High Density input Low Density input Low Density output High Density output ...

Service Guide - Page 20

... Key-in or software HD IN from host Key-in or software Automatic from sensor HD OUT Automatic from FDU from sensor 4-20 3.5" MICRO FLOPPY DISK DRIVES Pocket Service Guide 1.44 MB FDU FG TEAC FD235HF-6573 IR 0V ACD (B) ACD (A) 0V REN HS HA HI HI2 HO HO2 2 DC2 34 DC34 DC RY34 RY...

Service Guide - Page 23

... PANASONIC JU-257A 746P SA450 Note: This drive is not applied to be changed and are no jumpers present. Pocket Service Guide 1.44 MB FDU Y-E DATA YD-702D-6537D SA450 POWER SUPPLY CONNECTOR JUMPERS DS1 H2 DS0 IF JUMPER INSERTED JUMPER NOT INSERTED Note: This drive is used with "Mode Select" low 1.0 MB: if a double density disk is available...