Harlequin Company Keybonus Ltd. / Amiga Centre Scotland, UK   Date 1991   Amiga A2000, A3000, A4000   Interface Zorro II   Autoconfig ID 2118 / 100 framebuffer the Amiga's first 24 bit display device designed to provide compatibility with genlocks, single frame controllers and other video equipment 24 bit display and realtime animation the output of the Harlequin is totally independent from the Amiga video multiple Harlequin boards can be installed in one Amiga, each driving a separate device and outputting a different image optional 8 bit alpha channel - superimpose high quality graphics onto live signal, or smoothly blend paint images optional double buffering - two 24 bit displays instantly available screen modes: 740×486, 832×486, 910×486 (NTSC, 60 Hz) 740×576, 832×576, 910×576 (PAL, 50 Hz) 4, 8, 15 and 24 bit colour depth 15 kHz interlaced or 31 kHz non-interlaced in all resolutions models: H1500 1.5 MB VRAM H2000 2 MB VRAM - alpha channel H3000 3 MB VRAM - double buffering H4000 4 MB VRAM - alpha channel + double buffering all models can be upgraded to later ones outputs (two DB15 connectors): RGB + Composite sync digital key output alpha channel genlock control lines sandwich card, it occupies the space of two Zorro slots separate PAL and NTSC versions Photo H2000, front side H2000, back side H2000, front side H4000, front side H4000, back side H4000 with daughterboard installed, front side Sat & TV card, front side Sat & TV card, back side Daughterboard, back side Manual Harlequin.pdf (110 kB) user manual   Software Harlequin.dms (453 kB) install and developers disk harlequin.device v3.02 (21 Feb 1991), harlequin.library v11.07 (11 Jun 1992)