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From: rcstmc@eutws1.win.tue.nl (Maurice Cuijpers)
Newsgroups: comp.sys.ibm.pc
Subject: Need help with 3.5 inch Disk Drive !!!!!!
Message-ID: <1469@eutrc3.urc.tue.nl>
Date: 7 Feb 90 10:18:11 GMT
Sender: news@eutrc3.urc.tue.nl
Organization: Eindhoven University of Technology, The Netherlands
Lines: 45
Sender:rcstmc@eutws1.win.tue.nl


I've bought myself a 3.5 inch drive and installed it in my PC\XT compatible.
Then I find out that the disk-drive buffers were not cleared as I changed
disks. If you are willing to help me read the following more detailed 
explanation :

Original Configuration:

PC\XT Compatible (Tulip: Dutch product) with NEC V20 processor.
2 Floppy Disk Drives 5.25 inch (A: B:).

Current Configuration:

PC\XT (Same as above)
1 Floppy Disk Drive 3.5 inch (A:) a TEAC drive .
1 Floppy Disk Drive 5.25 inch (B:) (Same as above)

Problem:
The disk drive does *not* seem to notice or does *not* seem to inform
the controller/processor that there has been a DISK CHANGE.
Consequence:
The buffers that contain the directory and FAT-table are not cleared.
So a 'dir A:' gives the contents of the previous diskette!!!
More consequences:
Most programs that require a DISK CHANGE can not be executed.
"Solutions":
I rang the people/firm where I bought this drive, and they said I had
to use 'CTRL C' as temporarily solution until they had found a better one.
A few days later they rang and told me the following:
I should put the strap (Short bar) of No.34 pin of the signal interface
connector wrong. Well I've tried both settings of the Strap :
"OP" : open position
"ST" : short position
but only "OP" works well, but then I had the same problem as I described above.
With "ST" (use with PC\AT) my computer cannot read/write from disk !

Does *anybody* seem to recognize this problems and/or can help me solving them??*Any* suggestions are welcome !!!!

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Maurice Cuijpers
University of Technology Eindhoven
student Computing Science
the Netherlands
email: rcstmc@eutws1.win.tue.nl     
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