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Home Forums 68kMLA Strange board on Mac 512k — #24
Post #24 by H3NRY
Source Forum68kMLA
CategoryHardware
Post DateSun, 28 Mar 2010 - 03:02
Original URLhttps://68kmla.org/bb/threads/strange-board-on-mac-512k.20243/
Post
whether NTSC or PAL would use more or less circuitry, or about the same?
About the same. In either case, or the case of driving a CGA monitor, the scan rate has to be changed from 26 KHz (IIRC) to 15.75 or 15.62 KHz, so there has to be a frame buffer (RAM), and circuitry to deserialize the Mac video and stuff it into RAM, and circuitry to reserialize the RAM data into a new video stream.

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