the pickle: >>PIN SIGNAL >>9 PWM (brightness control signal)
johnsn: >I found another in Build your own Macintosh and save a bundle 2nd ed. by >Bob Brant. >page 185 > >Classic SE, SE/30 >Pin Signal Signal Pin >9 -5v -5v 6 >From this you can see the SE is almost a mirror image of the Classic. >However the developer PDF and the Brant chart differ on pin 9 the Classic. >I have connected a SE motherboard to a Classic using Brants chart and got >a working compact. >But not a useful one. It had video problems. see below at **** for some comment on the PWM signal. A report on the works here. For connection of a Mac with a monitor-out connector to a Classic monitor (like the LC that started this all), I'm in process of soldering a test setup: PIN on PIN on other Mac's 14-PIN 15-PIN Block Monitor Classic connector SIGNAL 1 * (+12V) 2 * (+5V) 3 * (+5V) 4 12 /VSYNC 5 15 /HSYNC 6 5 ** VIDOUT 7 *** (SND) 8 * (-12V) 9 **** PWM 10-14 1+6+11+13+14 GND * Maybe we can even use the Classic's power supply for something else than a compact's logic board. Measurement is needed. For starters, with the LC, I'll use the LC power supply unit (PSU); it's small enough. ** I'm going to test it with green only first. I have a *** sound comes from the internal speaker connector. on the LC board. **** Pin 9 is going to be the bottleneck in any attempt to 'quick-n-dirty' connect a non-Classic logic board to a Classic analog board+monitor, since it is unique to the classic. My guess is that this requires an add-on circuit that generates a PWM signal. First, I'm going to try it without. The sense pinning on the 15 pin mon connector, as read by the LC is set to 12" RGB, 384 x 512 pixels: pin 4 and 10 grounded. �mart -- 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
