Date: Sun, 05 May 2002 18:14:57 +0800 From: Raymond <[EMAIL PROTECTED]> Subject: 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 200ºC through 500ºC (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)? 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? - Raymond --- /~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\ | | "Does fuzzy logic tickle?" | | ___ | "My HDD has no reverse. How do I backup?" | | /__/ +-------------------------------------------| | / \ a y b o t | [EMAIL PROTECTED] | | | HTTP://www.raybot.net | | ICQ: 31756092 | Need help? Visit #Windows98 on DALNet! | \~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/ ************************************************************** 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 **************************************************************
