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- Path: sparky!uunet!mcsun!uknet!jet!dba
- From: dba@jet.uk (Dennis B Armstrong)
- Newsgroups: comp.sys.atari.st
- Subject: Re: Help! TOS 2.06 requires jumpers set...I have resistors.
- Message-ID: <1992Nov23.125452.22930@jet.uk>
- Date: 23 Nov 92 12:54:52 GMT
- References: <morrison.722192142@ee.ualberta.ca>
- Organization: Joint European Torus
- Lines: 86
-
- In <morrison.722192142@ee.ualberta.ca> morrison@ee.ualberta.ca (Robert Morrison) writes:
-
- >Greetings,
-
- > I just recieved the TOS 2.06 ROMs I ordered a couple of weeks ago
- >from CodeHead. The package is really slick. I popped out my old ROMs, put
- >in the new ones, and then hit the section about "jumper" settings. I hunted
- >around for about five minutes, looking for the "jumpers" W102, W103, and
- >W104 without finding them. Then I started looking closer at the system
- >board, at the printing, instead of just looking for jumpers. Aha! There
- >they are...right beside the ROMs...only they aren't jumpers, they're
- >resistors, soldered right into the board.... So, I said, "S#*t." And that's
- >where I'm at still.
-
- > So, what do I do? Continue using TOS 1.4? Desolder the resistors
- >from the system board and resolder them in the correct positions? I am
- >hesitant to apply a soldering iron to my system board. Could I install
- >jumpers of my own, or are these resistors critical? (I can't tell what
- >value they are as they have been painted over.) This makes me quite angry.
-
- The "resistors" are 0 ohms, as the automatic insertion machines prefer to
- handle standard resistors instead of pieces of wire. :-)
-
- > Oh, yes, I should mention that the "jumpers" are soldered into the
- >wrong points for the new ROMs, according to the docs CodeHead sent me, and
- >I tend to believe the docs...my system won't come up when I power it on.
-
- > Can anyone give me some advice? What do these jumpers do? Are they
- >involved in addressing the new ROMs? Help!
-
-
- Perhaps it should be in the FAQ list?
-
- TOS ROMS
-
- ATARI STE (Tos 1.6, 1.62, 2.06)
- These have 32 pin I/C holders.
-
- My 1.6 and 2.06 tos versions were both the same type (32 pin type 27C010A)
- Here follows the jumper settings for other ROM/EPROM types:
- From the STE Computer Field Service Manual (C302481-001 REV A Aug 91)
-
- ROM Jumper settings:
-
- ROM/EPROM Part type W102 W103 W104
- 27256 Don't care 1 and 2 N/C
- 27512 2 and 3 2 and 3 N/C
- 571001/27C1000/531000 2 and 3 2 and 3 2 and 3 (the default setting)
- 27010/571000/27C1001 1 and 2 2 and 3 1 and 2
-
- The jumpers are located next to the HI eprom
-
- W104 W103
- 1-2-3 1-2-3
-
- ----------------. W102
- 1 | 1-2-3
- |
- -
- HI |
- -
- |
- |
- ----------------
-
-
- Hope this helps
- Dennis
-
-
-
-
-
-
-
- --
- _. ._______________________. .___________________________________________
- _| |___. .__. ._____. .____| |__ Dennis Armstrong, CODAS division
- | | | |__. | | Joint European Torus
- | | | :__| | | Abingdon, Oxfordshire, OX14 3EA, UK
- |~__' : | `--. | | tel ++44 235 464871
- ~----~ +----+ +-+ dba@jet.uk
-
-
- - Disclaimer: Please note that the above is a personal view and should not
- be construed as an official comment from the JET project.
-