julesrichardsonuk at yahoo.co.uk
Wed Jul 20 08:03:37 CDT 2005
On Wed, 2005-07-20 at 00:32 +0100, Tony Duell wrote:
> > Next on the list is re-fixing that heatsink and dumping the ROMs. PSU
> > test after that, then I need to find the battery board schematic I drew
> I haev mine to hand... Incidentally, RS sold (sell?) some battery holders
> that will fit in place of the tagged NiCds, straight onto that PCB (I
> think that's why there are extra connecting holes for them) and you can
> then fit normal AA NiCds.
I'm trying to decide what to do about the whole battery aspect. If the
machine isn't going to be used for long periods of time then it makes
sense not to have any batteries in it in case they leak (or whatever).
But then if it doesn't need batteries during normal running, it seems a
bit of a waste to have them there at all (and need to open up the case
to fit them each time the machine's used)
I presume they're normally used to keep some form of RAM containing
configuration data alive though (plus maybe some kind of service
processor operational) as well as providing power to the start up relay
- so I'm not sure what the implications are there of not having them
Maybe an external NiCd pack is the way to go - there are plenty of screw
points at the rear of the case from which a suitable bracket for a
battery box could be attached. Mind you, I'm sort of at the point where
I think any machine which is to be stored for any period of time unused
should have its PSU disconnected just to stop anyone trying to randomly
power it up before doing some basic checks - in which case they'd need
to open the case anyway.
> No use to you at the momnet, but I do have the MG1 distribution kit.
That's handy to know anyway; two of our three MG-1's have rather unwell
hard disks which will need replacing before they can be made
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