Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!killer!vaxnix!merch!cpe!steve
From: steve@cpe.UUCP
Newsgroups: comp.sys.tandy
Subject: Re: Problem with Hard Card
Message-ID: <136500010@cpe>
Date: 21 Feb 89 17:40:00 GMT
References: <920@cs.rit.edu>
Lines: 37
Nf-ID: #R:cs.rit.edu:920:cpe:136500010:000:1440
Nf-From: cpe.UUCP!steve    Feb 21 11:40:00 1989


    
	The first thing you need to do is make sure that the interrupt
	being used on the hard disk card matches what the SX is set for.

	Find W7 on the hard disk card.  It is located between U13 and the edge
	connector.  For IRQ 2, W7 should have a shorting plug between pins 2-3.
	Also, there should be a shorting plug on the two posts at S1-7.

	In the SX is a 4-position switch block.  In order for the SX and the
	hard disk card to match interrupts, switch 2 should be in the ON
	position for IRQ 2 and the OFF position for IRQ 5.

	To use IRQ 5, W7 should have a shorting plug between pins 1-2 and there
	should also be a shorting plug on the two posts at S1-8.

	As for the SmartWatch, it can be installed on the hard disk card thereby
	allowing the use of slot number one for the hard card.  Simply pull the
	SmartWatch out of SX and install it under the BIOS of the hard disk
	card.  Make sure that both SmartWatch and BIOS are oriented correctly.

	If you do all of this and still get problems, chances are the hard disk
	card is malfunctioning.  A "1701" is a hard disk controller failure
	error.  You can also make sure that the hard disk card is seated
	properly in the backplane.

	Hope some of this helps.



					Stephen L. Osborn
					Computer Products Engineering
					Tandy Corporation/Radio Shack


	Naturally, all of the previous is my own opinions/ideas/knowledge
	and is not necessarily that of my employer. (I think)