3 Mar
2004
3 Mar
'04
12:38 a.m.
Hi!
I normally avoid saying things like this...
I have a bunch of IIc compatibles (Laser 128) that take the same power
adapter as the IIc. The connector is identical. The adaptor is a 17V unit,
very boring and average. Because I only have one original supply, but
about
8 machines, I ran several of the others off a 13.8V
automotive power
supply
via a suitable cable and they ran perfectly. The rough
DC is regulated
internally, so the machine doesn't seem to care much what it gets so long
as
it's not too far off 17V.
WARNINGS... This is a Laser 128. It seems to be practically identical to a
IIc in most ways. However, I can't say whether an original IIc would be
happy running off 13.8V as the Lasers were. I do know that their power
supply was a very simple single-voltage DC affair, and the 7-pin DIN
connector was just a weird choice. As to which pins do what, you can tell
by
popping the machine open and looking, or looking it up
on the web...
http://www.xs4all.nl/~rimmer/files/schemas.txt
This states the PS voltage is 15V, that may well be correct for the IIc.
Also note that if you accidentally reverse the connections on the PS
connector, it will reverse the voltage across the IIc, and quite possibly
destroy it. If you're not 100% confident that you're going to do the right
thing, it might be better to try to find a IIc (or maybe Laser 128) power
supply...
Mike.
I suppose we have already established this but in case we haven't :
Apple IIC 'Factory' supply is :
15Vdc 1.2Amps 18W
Laser 128 PS is:
17V 1.8A (This is the PS I got with the Laser although it says Vtech Canada
on it. I presume it is a replacement but works fine.)
BM