Focus TView PresoCard, Руководство пользователя

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TROUBLESHOOTING
FOCUS Enhancements TView PresoCard User’s Manual
24
Problem
My TV shows a distorted
signal that I know is the
computer, but it is flipping
around like crazy (or is
showing a blue screen)
My PC is showing only 16
colors, and the display
looks worse on the
computer monitor.
I use a Laptop PC, and the
internal display is fine but
the TV is distorted (or
blank).
My TV has the computer
screen on it, but the edges
are overflowing. How can
I fix this?
Reason
Your computer is not
sending a 640x480@60Hz
signal.
You need to experiment
with video drivers.
Your VGA port needs to be
activated.
This condition is called
Overscan. Your television
can only display a resolu-
tion of about 608x432 with
standard Video
Converters.
Windows 95
Open the Control Panel,
then the Display Icon.
Click the Settings Tab.
Click Change Display
Type, and make sure that
your Display type is set to
VGA Standard 640x480.
If the signal is still distort-
ed, repeat the previous
steps and set the Adapter
Type to Standard VGA.
Check your system specifi-
cations to determine what
kind of Video Card is
installed in your PC, and
see the question above for
instructions on changing
your Adapter Type.
You should use the CRT
Activation key combina-
tion specific to your com-
puter. Most Laptop com-
puters have an “F” key
(such as F1, F6, F12 - each
model is different) with
"CRT" marked on the side
facing you. Others have
an icon of a monitor. Find
this key and press it in
combination with the "Fn"
key to activate the CRT
output of your Laptop. If
you cannot find the CRT
Activation F-key on your
Laptop, consult your
Laptop manual for more
information about connect-
ing an external (CRT) mon-
itor.
If your Video Converter
has the FOCUS Hardware
Compression button
(Usually marked
“Compress” and only
available on certain mod-
els - check your manual),
you can fit 800x600 or up
to 1024x768 on your TV.
Windows 3.x
Use the Windows Setup
program (located in the
Main Program Group) to
specify your Display
Driver.
Recommended Windows
3.1 drivers include: Super
VGA 640x480, VGA 3.0,
GD5434 640x480x256, and
GD5434 640x480x64K.
See above.
See left.
See left.
Macintosh 7.x
Open the Monitors
Control Panel, click
Options, and select
640x480@60Hz (VGA).
Open the Monitors Control
Panel and select a higher
number of colors.
If your Powerbook is
showing a desktop pattern
on the TV, you need to
turn on Video Mirroring.
Use the PowerBook
Display control panel to
turn on Video Mirroring.
If you do not have the
Hardware Compression
feature, Macintosh Screen
Squeeze software is avail-
able for free on our web-
site, at www.focusinfo.com
Continued