drives can be fitted into an A500 in place of the built-in floppy drive using the Shuffle Board
autobooting (adide.device or icddiskide.device) - requires at least Kickstart 1.3
autobooting is problematic with the CDTV - either a boot floppy has to be used (which a bare CDTV lacks), or after a reset by selecting the hard disk in the Early Startup Menu (which require at least Kickstart 2.0)
incompatible with Western Digital and IBM hard disks
AdIDE 44 rules out accelerators that connect to the 68000's socket due to mechanical constraints
AdIDE 40 is compatible with processor expansions if the AdIDE is fitted below the accelerator - reported to be functional in A500 are CSA Derringer and Mega-Midget Racer, as well as Microbotics VXL*30
older software revisions work only with 68000 processor cards
a broadcast quality genlock in a 19" rack mount enclosure
composite, Y/C, RGB and Y/Cr/Cb modes
the function of the video input and output connectors (Keyer 1-3, 6× BNC, 2× mini-DIN) depend on the video mode selected on the front panel:
Keyer 1
Keyer 2
Keyer 3
CVBS/YC mode
CVBS
Y
C
RGB mode
G
R
B
Y/Cr/Cb mode
Y
Cr
Cb
composite, Y/C and RGBS outputs of the Amiga signal (5× BNC, 1× mini-DIN) - all are constantly available regardless of the selected video mode
the Y/C keyer BNC terminals are parallel with the 4 pin mini-DIN Y/C multipoles - both outputs should not be used simultaneously
key output (a standard non-composite waveform) for use with a video mixer (1× BNC)
reference input with loop connector (2× BNC)
must be provided with a stable accurate reference - direct videotape signals are not suitable
cross fade with external background signal
crossfade, key and fade to black via sliders on a separate remote control
background mode: colour zero is set to the overlay colour, video is seen through
foreground mode: the colour to be made transparent is controlled by a rotary switch
adjustable key colour, subcarrier and horizontal phase
can be used to encode the RGB output of a genlocked Harlequin graphics card, but it is not possible to obtain a signal mixed or keyed over a background video source using the VC3 internal keyers
software control via the parallel port
separate PAL and NTSC models
internal power supply
optional RGB-Link board
enables an external linear RGB signal to be processed the same way as the Amiga signal
input the RGB-Link board is via a DB25 connector which replaces the Amiga software control port - the Amiga computer control facility is lost
switching between Amiga and external RGB is provided by the manual/computer switch on the front panel
VC3C variant
provides all functions of the VC3 except for the 3 channels of keying
if fitted, the following ports are not available for use:
keyer inputs
Amiga control port
remote control port
VC3B variant
provides RGB, Sync and key outputs only
if fitted, the following ports are not available for use:
keyer inputs and outputs (3 channels)
PAL and Y/C outputs
Amiga control port
remote control port
if fitted, the following front panel controls are not available for use: