There is a unpopulated undocumented circuit from the 440b color board to add composite color in addition to the RGB out**
Contains AC control output, composite video & RGB out, 6820 PIA, Baud rate generator & 6850 ACIA For RS-232, A15 socket for head-end cards, and a socket for the 610 disk expansion board.
**Photos of completed boards are for example only and are not included**
** 3 jumpers need to be added to these boards and the errata with be included**
I have a A-15 in a separate listing and shipping can be combined .