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TM-150AK User’s Manual
(The selected item text color recover to GREEN)
Or Press EXIT button to save current setting & exit OSD MENU
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Normally, the VGA signal level is 0.72Vp-p.
Some kinds of VGA card signal is too high. (It has over than 1.0V)
In this case the control level is too high, you can adjust the contrast level.
4.2.6.2 DOS Mode select
Press MENU button to display OSD menu.
Move to Special, press MENU button, move to DOS Mode and then press MENU button.
(The selected item text color change to RED.)
Pressing ‘DOWN’ or ‘UP’ button, you can select DOS mode is 640x480 or 720x480.
Press MENU button to save current setting and than move to Exit menu, press Menu button .
Or Press EXIT button to save current setting & exit MENU.
•
Normally, the VGA card has two kind of DOS mode.
The one is 640 x 480,the other is 720 x 480.
Some kind of VGA card DOS mode is 640 x 480 and another has 720 x 480.
In this mode, the polarity and timming is exactly same, A/D board cannot select,
automatically.
So, you can select correct mode.
4.2.6.3 Zoom sharpness select
Press MENU button to display OSD menu.
Move to Special, press MENU,move to Zoom sharpness and then press MENU button.
(The selected item text color change to RED.)
Pressing ‘DOWN’ or ‘UP’ button, you can select DOS mode is 640x480 or 720x480.
Press MENU button to save current setting and than move to Exit menu, press Menu button .
Or Press EXIT button to save current setting & exit MENU.
