Date: Sun, 26 May 2002 18:30:49 +0800 From: Raymond <[EMAIL PROTECTED]> Subject: Re: [LIB] Info about the keyboard and mouse ports ...
>If anyone is interested, the PS/2 controller appears to be the square chip >just in front of the keyboard flat connector marked "Toshiba \ 471HP C1997 >\ 062 737100" and the pins are (based on a continuity test): >12 = Keyboard data (pin 1) >13 = Keyboard clock (pin 5) >16 = Mouse clock (pin 5) >17 = Mouse data (pin 1) It just occurs to me, the L50 also uses the same chip for its PS/2 controller. According to a photo I took of what is now my sister's laptop, that chip is marked "Toshiba \ 741HP C1997 \ 062 735103" and sits just in front of the memory expansion connector (note that the L50's motherboard is 'upside down', you need to have the IR port facing you for the motherboard markings to go the right way) ... I think the different last 4 digits is just a batch number. It'd be interesting if someone with an L50/70 wanted to try this out and post their findings ... after all, the L50/70 doesn't have PS/2 ports on its docking bar, only on the (relatively bulky) EPR ... of course you'll still have a problem of where to find 5V (and I can't even test points now seeing as my sister won't let me take her laptop apart!) ... by the looks of things though the pins seem a lot easier to get to since the traces leading from those pins are available and have round pads to solder to (in contrast, for all but 1 of those pins on the L100, the traces disappear through plated-through holes UNDER that chip) ... - Raymond --- /~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\ | | "Does fuzzy logic tickle?" | | ___ | "My HDD has no reverse. How do I backup?" | | /__/ +-------------------------------------------| | / \ a y b o t | [EMAIL PROTECTED] | | | Need help? Visit #Windows98 on DALNet! | | ICQ: 31756092 | Libretto IRC channel #Libretto 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 **************************************************************
