Date: Sun, 05 May 2002 09:54:54 -0700 (PDT) From: "Kevin McClelland" <[EMAIL PROTECTED]> Subject: Re: [LIB] Soldering temperatures
> Hi all! > > OK after having a flick through the L100 workshop manual that David so > kindly provided us with, I feel confident enough to make some ... umm ... > 'modifications' ;-) > > > Just a couple of questions regarding general electronics work before I > commence lest I fry something ... > > Firstly, I've been using a cheap and nasty 25W soldering iron to do my > soldering work (hey, I'm a student, thats all I can get my hands on ;-) ... > but now I've been given access to a nice soldering station that does 200�C > through 500�C (and a bit beyond I think). What sort of temperature would be > suitable for soldering to the delicate SMD circuits on the Libretto > motherboard? Would it be dangerous using lead-free electronics solder for > this (lead-free solder requires a higher temperature to melt)? When I did the OC on mine I used a 15W iron. I already had a 30W but I felt it was maybe a little too hot to use for the modification. Also make sure it is a decent one. My previous iron was a pretty cheap one overall, and had a tendency to overheat, IMO. You will also need a very fine needle type point for the iron for such delicate work. I think Xin mentioned a modification or something to make a really small tip, but I cannot recall correctly. I just bought the finest tip available from my local Radio Shack, and it worked fine. > > Secondly, when the motherboard is unpowered, how safe is it using your > average digital multimeter to do continuity tests? I've heard that its not > wise to use some multimeters to continuity test certain circuits due to the > currents involved ... > > I'll be seeing if I can add a couple of PS/2 ports (mouse and keyboard), > similar idea to that mentioned on Xin's website but I'll be trying to > solder onto lines 95 through 98 plus the power lines on the back of the > docking connector (I'd rather damage THAT than damage the chipset) ... if > that works I'll also make an attempt at bringing out the USB lines (I'll > have to find somewhere to take a few volts from to supply the USB power > lines though). Anyone got any suggestions? > I don't know if you can get the USB ports to work, I thought the controller was on the EPR. I could be mistaken though. Would be a nice mod if you can get it figured out. PS2 and keyboard would certainly be nice. If I can ever get my Palm foldaway keyboard to work with a PC it would be pretty nifty. Just haven't had the time to really mess with it lately. > > - Raymond ------------------------------------------------- Get your free @Elvis e-mail account at Elvis.com! http://www.elvis.com ************************************************************** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives -------TO UNSUBSCRIBE------- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe --------TO UNSUBSCRIBE DIGEST------ Do above but with this on subject line: cmd:unsubscribe digest **************************************************************
