Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!unmvax!pprg.unm.edu!hc!ames!oliveb!sun!concertina!fiddler From: fiddler%concertina@Sun.COM (Steve Hix) Newsgroups: comp.sys.mac Subject: Re: $300 Mac II ADB fuse repair Message-ID: <87923@sun.uucp> Date: 1 Feb 89 23:16:34 GMT References: <11984@dartvax.Dartmouth.EDU> <76000341@p.cs.uiuc.edu> Sender: news@sun.uucp Lines: 31 In article <76000341@p.cs.uiuc.edu>, gillies@p.cs.uiuc.edu writes: > > Why does Apple do this sort of stuff? > > -- Why would anyone solder a fuse to a circuit board? Someone else covered this one recently... > -- Why would anyone solder a battery to a circuit board? If you have a low-drain application battery installed in a spot where it's expected to perform for a long time, the most common cause of failure is typically degradation of the batteries contacts. If you have a battery that is expected to provide a low current for a long time, the most common failure derives from oxidation of the contacts. If you expect that most of your customers aren't willing (or able) to hop inside and fix things (or figure out what the problem is, you just might try soldering the battery in place and sidestep the problem. Icky maybe, but it saves a lot of grief spread over a couple million systems. When one of my cameras is five years old, I have to send it back to the maker to replace the...um...prarmeter RAM battery. Might as well replace the LCD panel on the top at the same time, since it will probably have degraded quite a bit by the same time. Beats cleaning and lubricating gears periodically, I guess.