A simple modulator will not do the job. What you probably has seen is a PC CGA-to-composite converter/modulator. Without entering in technical details, a PC's CGA graphics card generates a TTL signal with exactly the same timings as a NTSC or PAL video signal (depending on where it was made) - that is what makes the conversion very simple. On the other hand, all compact Macs generate their video signal at higher frequencies (they have almost four times the pixels of the CGA graphics adapter), and thus the timing is incompatible with PAL or NTSC TVs or monitors. To convert a Mac's TTL video signal into a composite video one, you'd need a very complicated device. I doubt such a device exists, but I can't tell for sure - correct me if I'm wrong.
Greetings, Antonio Rodr�guez (Grijan) <ftp://grijan.cjb.net:21000/> Mark Benson ha escrito: > I have stumbled across an interesting little dealie. I mentioned that > compact Macs used TTL video and i was trying to get a TTL monitor to > rig up one as a desktop case Mac. He produced an RF modulator that > takes in TTL and outputs an RF PAL TV signal. > > Soooo... I need to know where all the pins on the headers on a Mac 512k > and an SE go to so I can use these spare boards I have lying around and > maybe get em running. I figure the 12v and 5v lines from an LC PSU (of > which I have tons) will suffice for the power, as it doesn't have a > CRT. > > Pinouts would be useful. Any other advice welcome. > > -- > Mark Benson -- 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> --> 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/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
