VisionHDP
™
and
VisionDVI
™
User Manual and Installer Guide
© 2004 - 2006 Lumagen
®
, Inc.
17
Rev 1.1
Exact Output Timing
The
Timing
command sets output timing in pixel increments. This command can be
selected using the menu or with a direct command. The menu command screen is:
MENU
→
OUT
→
RES
→
TIMING
To directly select press:
MENU 0
9
4
3
. An example screen for 480p is shown below:
0 VTOT
525
4 HTOT
858
1 VRES
480
5 HRES
720
2 VSYN
5
6 HSYN
54
3 VFRN
5
7 HFRN
15
8 VRATE 59.94
9 EXECUTE
To program the pixel timing, first enter the single-digit (0-8) for a parameter to change.
This will bring up a sub-menu where the desired value can be entered. Select the value
and press
OK
. Continue setting all parameters that need to be changed and then accept all
the changes by executing the command. That is, changes do not take effect until option
9
(
EXECUTE
) is selected. This updates the hardware timing, and gives the user 15 seconds
to accept the changes. If the accept-screen times out, or if the user presses
EXIT
while it
is active, the output timing reverts to the old timing and the
Timing
command screen is
once again displayed without the changes made.
The parameters entered are for vertical (V) or horizontal (H), for the total pixel count
(TOT), the active pixel count (RES), the sync-pulse duration (SYN), or the front porch
(FRN). Note the front-porch is the time after active video and before the sync pulse. The
back-porch timing is automatically calculated. The vertical rate (VRATE) can also be set.
Output Size
Change scale of the image with respect to the active output. The command format is:
MENU
→
OUT
→
RES
→
SIZE
→
[
…
,
†
,
ˆ
,
‡
]
OK
or
MENU
0
9
4
1
[
…
,
†
,
ˆ
,
‡
]
OK
Output Position
Position the image with respect to the active output
.
The command format is:
MENU
→
OUT
→
RES
→
POS
→
[
…
,
†
,
ˆ
,
‡
]
OK
or
MENU
0
9
4
2
[
…
,
†
,
ˆ
,
‡
]
OK
Screen Aspect Ratio.
Select the screen aspect ratio. The screen aspect ratio range is 1.33 (4:3) to 2.35 and is
entered in units of hundredths (e.g. 16:9 is entered as
1
7
8
). The command format is:
MENU 0
6
value
OK
or
MENU
→
OUT
→
ASPECT
→
value
OK