Path: utzoo!mnetor!uunet!husc6!mailrus!nrl-cmf!ames!pasteur!ucbvax!URIMVS.BITNET!PHR140 From: PHR140@URIMVS.BITNET ("Ray C") Newsgroups: comp.sys.atari.8bit Subject: modems and the 1200xl Message-ID: <8805072106.AA22690@ucbvax.Berkeley.EDU> Date: 7 May 88 18:18:00 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 14 One thing I found out when I first started using an Avatex 1200 modem with an R-verter interface on my 1200xl was that the interface was not getting enough power. I remembered that there is a current limitting resistor on the +5 volt line of the sio bus. This is resistor R63. If you put a jumper across this resistor, you will be able to use an r-verter or an p:r: connection with the 1200xl. Also, if you want to get at the croma video signal (to feed monitors that have separate croma and luma inputs) you can connect a 0.01 uf capacitor to the junction of R184 and C119. Attach the other end the the free pin of the video jack. Using this configuration gives a much better picture on the commodore (ack!) monitors, and other monitors that support this type of vide input.