On Sunday, March 24, 2002, at 08:14 , Gamba wrote: >> How do I know which is the PRAM chip? >> Eagle > > It's an 8 pin chip. > Just measure pin 8 on every 8-pin-chip in there until you get a voltage. > With Plus turned off and unplugged any voltage that you find will be > from > battery. > BTW, the schematic shows the battery voltage going to several chips, > unlike > (all?) other vintage macs which have it going only to the PRAM/clock > chip. > Soooo, it there's no diode, and you had reverse voltage applied, it's > possible that more/other chips got damaged.
On the motherboard or on the analog board? I'm guessing motherboard. Pin 8 is going to be the top-right pin on an 8-pin chip right? Eagle -- Compact Macs is sponsored by <http://lowendmac.com/> and... PowerON Computer Services <http://www.poweron.com> REPLACEMENT PARTS in STOCK Drives, CD-ROMs, RAM, Mac OS SW, Power Supply <mailto:[EMAIL PROTECTED]> Support Low End Mac <http://lowendmac.com/lists/support.html> Compact Macs list info: <http://lowendmac.com/lists/compact.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/compact.macs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
