Macintosh IIsi/IIci/LC Built-in Video: No NTSC Output (11/94)


Can I display the Macintosh LC's output on an NTSC monitor? I looked into RGB-to-NTSC converters and found that the RasterOps Video Expander only works off a NuBus display card. My guess is that ComputerVideo's Video NTSC Encoder works the same way.

I know you can make a cable to pull black and white NTSC off Macintosh display cards. Given that, is there a way to pull NTSC off the built-in video on a Macintosh?

While you can generate an RS-170 signal by shorting together pins on Apple's NuBus video cards, an NTSC compatible (not NTSC standard) signal cannot be generated by the built-in video ports of the Macintosh IIci, Macintosh IIsi, or Macintosh LC.

Lapis Technology produced a video adapter to allow the Macintosh LC to generate NTSC compatible video. Contact them for further information on pricing and availablility.

Article Change History:
07 Nov 1994 - Reviewed for technical accuracy.

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Published Date: Feb 18, 2012