Question about Alps DF354H (DF354H168) Internal Floppy Drive

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Read/write low density disks

I need to configure the DF354H121G to read/write low density disks for old production machine.


Please suggest the configuration that I have to use, I see that there is one jumper DS0 open and another DS1 short. Do I need to exchange their status?

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Nothing, the machine worked with the DS1 too

Posted on Apr 29, 2008

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Specifications nec fd 1137c


what are you looking for? Here is what I have:
LED Indicator: Green
Interface Connector: 34-pin connector right-angled header connector
Operation Mode Write / Read: 2MB mode / 1.6MB mode / 1MB mode
Disk Used
(90mm / 3.5): High density (2HD) / High density (2HD) / Normal density (2DD)
Data Transfer Rate: 500KBps / 500KBps / 250KBps
Unformatted Data Capacity: 2MB / 1.6MB / 1MB
Rotational Speed: 300rpm / 360rpm / 300rpm
Track Density: 5.3 track/mm (135tpi)
Track to Track Time: 3ms
Required Power: +5V single (4.5V ~ 5.5V)
Signal Output Driver: Open Collector TTL
Input signal Pull-up: 1K Ohm 30%
Function Setting at Delivery: Interface Setting:Pin2: MODE SELECT input (LOW: 1.6MB mode) Pin12: DRIVE SELECT 1 input Pin34: DISK CHANGE Output Other Function Setting: 1. Automatic density setting for 2DD (1MB) disk or 2HD (1.6MB/2MB) disk 2. LED Turn on Condition: DRIVE SELECT 3. Motor Rotating Condition: MOTOR ON 4. Ready and seek-complete gate (full-mask) for INDEX and READ DATA output pulses 5. Auto-chucking at disk installation 6. Auto-recalibration at power on 7. Frame is electrically shorted to DC 0V
Dimensions: 101.6 W X 25.4 H X 145 D mm excluding front bezel
Weight: 345g
Mounting: Vertical/horizontal with spindle motor down
MTBF: 30,000 POH
Safety Standards: UL, CSA, TUV

May 27, 2014 | Teac Computers & Internet

1 Answer

Opening and reading old floppies


First off, floppy disks came in different sizes and 'flavours'
8", 5.25" and 3.5" - the latter two being the most commonly used on Dos/ Windows machines.
Within these form factors were several different standards; single / double sided, normal and high density format and ranged in capacity from 360kb t0 1.4Mb apiece.
The important thing to remember is not to attempt a write operation, as this may corrupt the data already on the disk.
The 'good news' is that the dat a connection is much the same, although the connectors varied - 5.25" had an edge connector and 3.5 was a pin (the wire assignments were the same)

Drive mechanisms can be bought on 'fleabay' for a few quid.

The fun will start when you try to read the data - plain text will be easiest.
Applications used different formats ie Lotus, excel, propriety formats were used by specific apps.

Stating the obvious; What you seek is not impossible, just very difficult - ideally you'd want a machine with the same hardware config and a compatible software - if the files are password protected you are pretty much on your own.

Good luck!

Jan 19, 2014 | Computers & Internet

1 Answer

Asus eee 900 disk hardware configuration


Have you checked BIOS settings to make sure the right harddisk is selected as Boot Drive ?

You could try installing it on another machine to make sure it's still readable.

Did you change any settings or get any error messages the last time you used it ?

Jun 18, 2012 | ASUS Eee PC 900 Notebook

2 Answers

Need to format 720


In a DOS prompt type:

format a: /n:9 /t:80

That should format the disk at low density for you.

Apr 07, 2009 | Dynex DX-EF101 (DXEF101) External Floppy...

1 Answer

Nexxtech usb external floppy drive


The simple answer to your question is yes. The trick is getting the external floppy drive.

If you have one you should be able to connect it to you mac and simply drag the files on to your desktop. Depending what the files are you should then be able to still read them and save them on the mac in a new format.

It really depends on what format the files are and what app they where created in.

Floppy disks! I have not come across them for years! The process is quite slow!

Sep 30, 2008 | Apple MacBook 13"White /2.0Ghz Intel Core2...

1 Answer

LS-120 superdisk


Can you read any existing LS-120 diskettes?
If not, then your device is malfunctioning.

Take a look at the "back" of your SuperDisk diskette.
Look at "bottom-left" for a "slider" tab inside a rectangular hole.
Move the slider _away_ from the bottom-left corner, towards the "top" of the diskette, to disable the "write-protect" hardware feature.

Jul 15, 2008 | HP (F1470A) Internal LS-120 (SuperDisk)...

3 Answers

IE DATA 702 fdd


Hello

I beleave it uses a HD/DD type of disk

Abbr.
Floppy Disk Type
Capacity
Info
SS/SD or 1S/1D
Single Sided, Single Density
100 K
First generation. Capacity varies
SS/DD or 1S/2D
5-1/4 inch Single Sided, Double Density
180 K

DD/DD or 2D/2D
5-1/4 inch Double Sided, Double Density
360 K
Most common type in the early 1980's
DD/HD or 2D/HD
5-1/4 inch Double Sided, High Density
1.2 Mb

DD
3.5 inch Micro Floppy, Double Density
720 K
Hard plastic case
HD
3.5 inch Micro Floppy, High Density
1.44 Mb or
2.88 Mb

Hard plastic case

May 05, 2008 | Ye Data YD-702D (850416000107) Internal...

2 Answers

Keeps saying disk protect


These old electronics tend to be tempermental, just like my old 1988 Nintendo....when the problem persisted, I held the disk slot open and went Nintendo-style on it (blow the dust out of the disk slot). That cleaned off the disk reader. I put the disk in, and it started reading the disk instantly.

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