AJONES@osu-20.ircc.ohio-state.edu (Shawn Jones) (06/16/90)
Severaal years ago I saw a reference in a computer magazine to a mino hardware modification which would improve the video output from (I think) the 400 and 800xl's. I was not able to keep the magazine or copy the article. Do any of you know how to make such a modification on a 1200xl? AJones
whoffman@jato.Jpl.Nasa.Gov (Walt Hoffman) (06/16/90)
In article <12598055735018@osu-20.ircc.ohio-state.edu> AJONES@osu-20.ircc.ohio-state.edu (Shawn Jones) writes: > > Severaal years ago I saw a reference in a computer magazine to a mino >hardware modification which would improve the video output from (I think) >the 400 and 800xl's. I was not able to keep the magazine or copy the >article. Do any of you know how to make such a modification on a 1200xl? > >AJones I dug up my archives and found the following modifications to improve the video output on a 1200XL. Originally Change to R22 4.3K ohm 6.2K ohms R188 910 ohm 1N914 diode with cathode towards the bridge rectifier R163 100 ohm 150 ohm R145 n/c 18K ohms I don't have a 1200 XL myself but a member in our Atari Club at work did the mod and was quite pleased. -- Walt Hoffman -- Jet Propulsion Laboratory whoffman@jato.jpl.nasa.gov or elroy!jato!whoffman@csvax.caltech.edu Galileo Orbiter Engineering Team -- Real-Time Analyst "Jupiter...it's not just a goal, it's an adventure."