[comp.os.cpm] Help: Tandon Disk Drive & Xebek controller

etpkg@levels.sait.edu.au (04/19/91)

Help! I have an ICL model 35 computer running MP/M ver. 2.4f3. Recently
the hard disk died ( it was a 10 meg Rodime model RO 200 ) and I got
hold of second hand 5 meg Tandon model TM 501 to replace it. However it
doesn't work. I suspect I need to change the jumper settings on the drive.
So, If someone has details of the jumpers of the Tandon drive they would be
much apreciated. The hard disk controller in the ICL is a Xebek Systems
model 104526 (at least thats the only number written on it). The jumper
settings for this would also be good.

I can be contacted at paul@sal.sait.edu.au or you can post it to the 
newgroup.

Thanks in advance, 

Paul Gray
University of South Australia.

cwcst1@unix.cis.pitt.edu (Carol Coates) (04/20/91)

In article <16222.280f1c59@levels.sait.edu.au> etpkg@levels.sait.edu.au writes:
>Help! I have an ICL model 35 computer running MP/M ver. 2.4f3. Recently
>the hard disk died ( it was a 10 meg Rodime model RO 200 ) and I got
		      ^^^^^^^^^^^^^^^
>hold of second hand 5 meg Tandon model TM 501 to replace it. However it
		     ^^^^^
>doesn't work. I suspect I need to change the jumper settings on the drive.
>So, If someone has details of the jumpers of the Tandon drive they would be
>much apreciated. The hard disk controller in the ICL is a Xebek Systems
>model 104526 (at least thats the only number written on it). The jumper
>settings for this would also be good.

	Greetings. I tried that with my Kaypro 10. I had a few 6 meg
	hard drives and I wanted to use them with my K10, which came
	with a 10 meg.

	The first problem was getting all the jumpers.
	The second and terminal problem was that my format
	program required a drive with 4 heads and 305 cylinders.
	Those are the specs for a 10MB unit, not a 6MB one - when
	I tried to format, it failed.
	And third, even if you convince the format program to format
	only 2 heads and 305 cyliners (5MB specs), how will you tell
	CP/M that? In my K10, CP/M can only access 8MB and the drive
	was split into A: and B: (C: for floppy). Well, I got it to
	format only A: but then ran a program that bombed because
	there was no drive B: (or something like that).


	SO:

	Get a new 10MB unit! For a new, expect to pay ~$70 and for a
	used ~$35

	Take care.

donm@pnet07.cts.com (Don Maslin) (04/22/91)

etpkg@levels.sait.edu.au writes:
>So, If someone has details of the jumpers of the Tandon drive they would be
>much appreciated....

The jumpers and factory settings for the TM 50x drives are as below:

        Jumper  Function                Setting         Usage
        W1      Track Fault             O       Install for excess track fault
        W2      Test                    O       Install for factory test
        W3      Disable Limit           O       Install to disable soft limits
        W4      Spin Select             O       Install for spin select
        W5      Tracks                  S       Install for standard version
        W6      Motor Type              -       Install for Type 1.8 motor
        RTW7    Read Terminator         I       Close only at end drive of
                                                daisy chain data.  Closed for
                                                radial data.
        WTW8    Write Terminator        I       
        
        S4W9    Drive Select 4          O       Install one of four plugs only
        S3W10   Drive Select 3          O       Plug corresponds to drive addr
        S2W11   Drive Select 2          O
        S1W12   Drive Select 1          I

        3PW13   Three Disk             503      Close for TM503 only

        U22     Terminator Pack         I       Install in end drive of daisy
                                                chain.
        NOTES:
          O     Omit
          I     Install
          S     Close jumper for standard version only
         503    Close jumper for TM503 only

>     [...]         The hard disk controller in the ICL is a Xebek Systems
>model 104526 (at least thats the only number written on it). The jumper
>settings for this would also be good.
>
Sorry, I can't help you out on that.  Perhaps someone else will.


                                                 - don

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