Keybonus Ltd. / Amiga Centre Scotland Harlequin

Manufacturer Keybonus Ltd. / Amiga Centre Scotland, UK	Date 1991	Amiga A2000, A3000, A4000	Interface Zorro II	Autoconfig ID 2118 / 100

Manufacturer

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