(PAL-encoded) feeds audio The composite video on the G7400 is Pal encoded, and I'm pretty sure it is on the G7000. I have 2 sets of schematics. One for the Odyssey2 (where every part number is an internal Magnavox number :-P and the other for the G7000) - I seem to recall something about PAL conversion on the RF modulator board. I probably just don't remember right. If one is not composite video, where is the sync encoded? On Y (i.e. making it composite mono)? I suppose this could just possibly be video + composite sync - just what I need. video side (Philips for I 8245 is a Nat Semi keyboard controller. This chip says Intel on it, but I was assuming, probably very rashly, that it was the same thing. [Matt Pritchard] We've been unable to find any info on the video chip; though it supposed to be an Intel chip. Most of it has been reversed enginnered though. 8 colors 4 sprites, 8 by 8 pixels, independantly positioned & colord. can be double sized 12 characters, independantly positioned & colored, up to an 8 byte tall strip from the character rom (512 bytes, 64 chars) can show just part of a character. 4 quad characters. 4 characters positioned in a horizontal row with one character spacing inbetween. independantly colored. Put two of these together to make 8 consecutive text characters. Background grid 10 by 8 blocks with 4 thin line segements around each block. Complete off/on control of ever segment. Set a flag in the video chip to fill in the large box to the right of each vertical line segment. The horizontal retrace is run into the 8048 so you can count scanlines - that is how colors are changed midway down the screen. 6110 is a typo for 6810 :-), in fact Motorola MCM6810, a RAM chip. Looking it up last night I discovered that it is in fact 128 by 8 (yes, 128 bytes!) so I cannot think what it is used for! (It is too slow to be a video output buffer) [Matt Pritchard] Are you sure it's not 256 bytes? Philip.