Panasonic JU-257A Support Question
Panasonic JU-257A Support Question
Find answers below for this question about Panasonic JU-257A - 1.44 MB Floppy Disk Drive.Need a Panasonic JU-257A manual? We have 1 online manual for this item!
Question posted by hklim62 on June 21st, 2018
Ju-257a726p Reader
Hello,can I know where to purchase one or can I get a compatible unit.tq
Current Answers
Answer #1: Posted by BusterDoogen on June 22nd, 2018 9:36 AM
BusterDoogen
Member since:
October 30th, 2011 Points: 28,565,447
Member since:
October 30th, 2011 Points: 28,565,447
Go here for a floppy drive.
I hope this is helpful to you!
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Related Panasonic JU-257A Manual Pages
Service Guide - Page 1
... recognize
the 2.88 MB drive as the system's second drive. The drive attached to the first connector is recognized as drive A, while the drive attached to the second connector is compatible with 720 KB disks. • Only MS-DOS release 5.0 can format 720 KB and 1.44 MB disks with the simple
Format command. As a general rule, all floppy disk drives must be changed from...
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
... 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
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...ON 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...
SETTING FOR 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
Service Guide - Page 7
Peripherals - 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...
Service Guide - Page 8
... 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 DRIVES
Service Guide - Page 9
...
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
ON
SETTING FOR MP-F17-85
OFF
ON
OFF
ON
3.5" MICRO FLOPPY DISK DRIVES
4-9
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
... the Disk Change signal on pin 2
SETTING FOR SETTING FOR MF-355C-58ML MF-355C-58MF
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
ON
OFF
OFF
4-12
3.5" MICRO FLOPPY DISK DRIVES Peripherals...
Service Guide - Page 13
... OFF
OFF
ON
3.5" MICRO FLOPPY DISK DRIVES
4-13 Peripherals - Mode 2M is set with input signal HDI at low level.
I /F pins 7, 9 and 11 are connected to GND.
3-4 7-8
Mode is selected by signal HDI. 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...
Service Guide - Page 14
.... I/F pins 7, 9 and 11 are open.
4-5 7-8
Mode is low.
I /F pins 1, 3 and 5 are connected to the +5 V.
3-4 7-8
Mode is at high level. SETTING OFF OFF ON
4-14
3.5" MICRO FLOPPY DISK DRIVES Mode 2M is set when input signal HDI is selected by an internal sensor. 4-5 I /F pins 1, 3 and 5 are connected to the +5 V. Pocket Service Guide
EPSON SMD1040...
Service Guide - Page 15
... 2M is selected by an internal sensor.
SETTING OFF ON ON
OFF
OFF
3.5" MICRO FLOPPY DISK DRIVES
4-15 I /F pins 7, 9 and 11 are open.
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...
Service Guide - Page 16
Key-in or software
HD IN from sensor
4-16
3.5" MICRO FLOPPY DISK DRIVES 1.44 MB FDU
Peripherals - Pocket Service Guide
TEAC FD235HF-4473
SA450
E
HO
HI 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...
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
Service Guide - Page 18
...
10 5
GND
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
Service Guide - Page 19
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
SETTING
OFF ...
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
... no jumpers present. OFF *
ON
ON OFF * ON * OFF
1.44 MB FDU
PANASONIC JU-257A 746P
SA450
Note: This drive is not applied to be changed and are no jumper settings to the interface connector
DS1 Drive selected as DRIVE 1
DS0 Drive selected as DRIVE 0
4
COND. Pocket Service Guide
1.44 MB FDU
Y-E DATA YD-702D-6537D
SA450
POWER SUPPLY CONNECTOR
JUMPERS...
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