At 08:56 -0700 on 26/07/02, Snook, John R wrote: ><Because Brant's chart is wrong on pin 9. That PWM signal controls the ><brightness and contrast of the display, > >How can it control two things at once (brightness and contrast)?
Beats me. But it does. At least that's what the developer note said, IIRC. It definitely controls brightness. > ><and is also > >Also? How so? > >< the reason a Classic or Classic II cannot use an external >Apple 400K floppy drive or the HD20 that plugs into the floppy port. Because apparently the 400K drive needs some sort of PWM signal itself to control spindle speed, and the mobo doesn't provide that because the line was used for brightness/contrast control instead. the pickle FAQ <http://macfaq.org/index.shtml> Software Archive <ftp://download:[EMAIL PROTECTED]//Users/thepickl/Sites/Archive/> <http://www.members.jmug.org/%7Ethepickl/archive/> _________________________________________________________________ -- Compact Macs is sponsored by <http://lowendmac.com/>. 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/> --> AOL users, remove "mailto:"; 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
