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Article #1893

Re: INFO-MICRO Digest V88 #195

#1893
From: Sun NCAA
Date: Sun, 13 Nov 1988 02:18
115 lines
3612 bytes
In article <8811111442.AA16282@ucbvax.Berkeley.EDU>, DJOHNSON%CH3@sc.intel.COM ("Don Johnson x2908 ms:c3-58 Pole: J5") writes:
> Does anyone have the pinout for the Floppy Disk Drive port on the back
> of the Toshiba laptops?  I'd like to skip the high cost of one of their
> floppies...
> 
>   djohnson%ch3@sc.intel.com
> 
>    Thanks,
> 
>     DJ

This may be what you are looking for:

Newsgroups: comp.sys.ibm.pc,comp.periphs
Subject: Re: Help with disk connector
Summary: Toshiba PC support BBS

In article <1020@adds.newyork.NCR.COM> kieran@adds.newyork.NCR.COM (Joe Cabana) writes:
>... Toshiba 1200H portable ...
>The only problem I have is I can't get the pinout for the external floppy
>connector.
>... a wireing diagram for a DB-25 to 34 pin
>edge card cable ...

All users of Toshiba PCs should take advantage of what I consider to be
an excellent customer support system.  The best part is that it's free!

Toshiba operates a bulletin board dedicated to supporting their
personal computer product line.  The phone number is 714-837-4408
and they support 300/1200/2400 bps.  Two of the files that you can
download from this BBS are called 3100-IBM.TXT and OTHRCONN.TXT and
they describe the disk drive cable and the connector pinouts, respectively.
For your enjoyment, they are included below:

------- File 3100-IBM.TXT

1100+ or 3100 to IBM Floppy Disk

	Male DB-25 to 34 pin Card Edge connector

		1	33 & 34
		2	8
		3	26
		4	28
		5	30
	   6 to 9 nc
		10	12
		11	16
		12	22
		13	24
		14 nc
		15	32
		16	18
		17	20
	  18 to 25	All odd pins

-------- File OTHRCONN.TXT

RGB Connector

1 & 2	Ground
3	Red
4	Green
5	Blue
6	Intensity
7	Not Used
8	Horizantal Sync
9	Vertical Sync


Printer Port			|	Floppy Port
				|
1	Strobe		O	|	1	External drive Ready	I
2	Data 0		O	|	2	Index			I
3	Data 1		O	|	3	Track 0			I
4	Data 2		O	|	4	Write Protected		I
5	Data 3		O	|	5	Read Data		I
6	Data 4		O	|	6	Disk Change		I
7	Data 5		O	|	7-9	Not Used
8	Data 6		O	|	10	Drive Select -B		O
9	Data 7		O	|	11	Motor On -B		O
10	Ack		I	|	12	Write Data		O
11	Busy		I	|	13	Write Enable		O
12	Paper End	I	|	14	300 Kbps Data Rate	O
13	Select		I	|	15	Side Select		O
14	Auto Feed	O	|	16	Direction		O
15	Error		I	|	17	Step			O
16	Printer Init	O	|	18-25	Ground
17	Select In	O	|	
18-25	Ground			|

--------

Make sure your disk drive is jumpered as drive "B" (DS1).

I took this one step further with my 3100.  The controller in the
3100 will support 1.2MB drives, so I added the extra wire between
DB25 pin 14 and edge connector pin 2.  I mounted two drives in one
box and set up a toggle switch on the drive-select line to switch
between the 360K and 1.2M drives.  When switching between drives
you also need to run the Toshiba-supplied TEST program and change the
setup for the second diskette drive.

	Good luck!

-- 
Bob Hoffman, N3CVL       {allegra, bellcore, cadre, idis, psuvax1}!pitt!hoffman
Pitt Computer Science    hoffman@vax.cs.pittsburgh.edu



-- 
Matthew Lee Stier     (919) 469-8300|
Sun Microsystems ---  RTP, NC  27560|          "Wisconsin   Escapee"
uucp: {sun, rti}!sunpix!matthew     |
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References: <8811111442.AA16282@ucbvax.Berkeley.EDU>

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From: matthew@sunpix.UUCP ( Sun NCAA)
Newsgroups: comp.sys.misc
Subject: Re: INFO-MICRO Digest V88 #195
Message-ID: <271@greens.UUCP>
Date: 13 Nov 88 02:18:09 GMT
References: <8811111442.AA16282@ucbvax.Berkeley.EDU>
Organization: Sun Microsystems, Research Triangle Park, NC
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