----- Original Message ----- From: "flawed jai" <[EMAIL PROTECTED]> To: "Vintage Macs" <[EMAIL PROTECTED]> Sent: Friday, April 26, 2002 9:13 PM Subject: simple questions when replacing power cables
> I have noticed that all ribbon cables are marked down one edge with a > red band. I have been examining all of my computers, both mac and PC, > and it seems that there is a convention to the way they must be > attached, both on the board and on the device they power. so far I > seem to deduce that the red edge always seems to face towards the inside > of the machine and also face the plug where the power supply wires go > into the device as well. > > is this correct? > > for that matter, it appears that the four-wire power plugs, ( those > having one yellow, 2 black in the center, and one red), always orient > so that the red is to the interior of the machine, and the yellow is > oriented to the outside, nearer the 'skin'. > > am I grasping the right idea? > janet > The red stripe, be it PC or Mac, denotes pin number one. Most motherboards are marked, especially PC ones, with critical pin numbers in all four corners of the socket. Some sockets are "keyed", and the ribbon has a tab that matches to the "key" so you can't possibly put the ribbon on backwards. Again, with the power plug, it's got a rounded side and a squared side, as viewed froom the plastic plug at the end where it fits in the socket (four-wire) so it's tough, unless you force it, to put it on wrongly. Jeff -- Vintage Macs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Vintage Macs list info: <http://lowendmac.com/lists/vintagemacs.shtml> The FAQ: <http://macfaq.org/> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/vintage.macs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
