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Fairlight-CMI

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Re: [Fairlight-CMI] Re: How to wire up the 24 channel router, DSUB pinout details needed

2012-06-17 by Joe Sleator

> Question:

> Is the Fairlight fragile?

I daresay no more fragile than a PC. Perhaps less so. The floppy drives aren't really fragile at all, they tend to get out of sorts, but can be fixed with some expertise. I don't think I've ever seen an 8" floppy drive completely dead. They were made to a different standard in those days.

I've looked inside my Waveterms and PPG 2.3 keyboard, and the CMIs are more ruggedly constructed than those by a fair measure. In fact, CMIs are generally more solid than most 80's keyboards. (And a good deal heavier) :-D

The hard drives could be considered fragile when running, i.e. don't drop or bump it, but the kind of impact that would wreck a stationary vintage Series III hard drive would do a pretty serious job on the mainframe as well.

If it was a real concern, a SCSI SSD or SCSI->IDE SSD arrangement could probably be made, and the rotating drive copied over. You'd have a very hard time crashing an SSD drive even if you shot it out of a howitzer I think as it has no moving parts but the data itself.

And with the series III, I think you're much more likely to encounter oxidation problems, as you already have. Moving the contacts around helps that.

Joe

On Mon, Jun 18, 2012 at 3:57 AM, ataritt <ataritt@yahoo.com> wrote:

Hi Peter and the rest..

I'm running the Series 3 MFX2 in polyphonic mode now, and it's a breeze to use it as a sound source, connecting it and putting polyphonic parts to selected mixer channels.

I noticed a level drop on some cards, but reseating the back side audioboards fixed that problem.
The machine has had a hell of a drive in the back of a truck when it was delivered to me from germany, and i'm very happy the machine works and sounds like it should.

Question:

Is the Fairlight fragile?

I suppose not, but fill us in please.

I think only the power supply and the hard and floppydrives (mine's busted anyway)are really fragile, as the boards seem to me (i do know a bit on electronics) very well engineered and designed.

Regards, Karel



--- In Fairlight-CMI@yahoogroups.com, "horiprod" wrote:
>
> Hi Karel. The pinouts are as follows. You might want to draw them out on paper first, and you'll see how the 8 balanced cables logically go from top to bottom of the 25 pin connector. Columns are: pin, channel, polarity. All 3 connectors are wired identically.
> 1 n/c
> 2 8+
> 3 7ov
> 4 7+
> 5 6+
> 6 5ov
> 7 5+
> 8 4+
> 9 3ov
> 10 3+
> 11 2+
> 12 1ov
> 13 1+
> 14 8-
> 15 8ov
> 16 7-
> 17 6-
> 18 6ov
> 19 5-
> 20 4-
> 21 4ov
> 22 3-
> 23 2-
> 24 2ov
> 25 1-
>
> Hope this helps,
>
> regards,
>
> Peter Wielk in sunny Sydney
>


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