8
CHAPTER 4: Operation
4.1 Indicators
The red POWER indicator lights
up when your Converter is receiving
DC power. If this light is glowing
dimly or not at all, there might be
something wrong with the external
power supply. See
Chapter 6
.
The green LOCK indicator lights
up when the Converter is receiving
a valid computer signal through the
VIDEO IN connector on its rear
panel. Both the 512 x 384 and
640 x 480 Macintosh
®
video-display
modes are supported. Which one
the Converter will use depends on
the monitor attached to the VIDEO
OUT port (see
Section 4.3
).
4.2 Front-Panel Controls
UNDERSCAN: When this switch is in
the NORMAL position, images that
the Coverter outputs in Composite,
S-Video, and RGBS formats will fill
the entire viewable screen area. But
because some monitors “overscan”
their screens, some desirable parts of
your images could be cropped off of
the screen. If this is the case, flip this
switch to the UNDERSCAN position
to shrink the images, both
horizontally and vertically,
approximately 10% in size.
4. Operation
Figure 4-1. Front panel of a Video Converter Pro for Mac.
LOCK
UNDERSCAN
FLICKER REDUCTION
FREEZE IMAGE
NORMAL
NORMAL
NORMAL
POWER
Receiving power
when POWER is
lit. Mac signal is
OK at input
when LOCK is lit
Image is “shrunk” in both
the horizontal and vertical
directions when switch is in
UNDERSCAN position
Anti-flicker filter is
active when switch is in
FLICKER REDUCTION
position
Image is instantly
“frozen” when switch is
in FREEZE IMAGE
position