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30 C2928M-A (4/07)
PREFERRED SOURCE DETECTION
When the PMCD750 attempts to detect an analog mode, it uses the horizontal frequency, the vertical frequency, and the number of horizontal
lines per vertical interval. Unfortunately, some signals can have the same measurement on these three parameters, most notably resolutions of
1024 x 768, 1280 x 768 and 1366 x 768. When the display detects an ambiguous input, the Preferred Source Detection menu tells the display
which aspect ratio to use; the default is 16 x 9. If this is not the desired aspect ratio, the setting can be changed. For example, if the display is
used with a laptop computer that outputs 1024 x 768, the setting would be changed to 4 x 3. In most cases this setting will not need to be
adjusted. Preferred Source Detection menu choices are 16 x 9, 5 x 4, 4 x 3, or 15 x 9.
The following procedure is required for a stand-alone unit and all units in a wall system.
To adjust preferred source detection, refer to Figure 20 and do the following:
1. Press MENU on the remote control.
2. Scroll down to Advanced Options, and then press + on the remote control.
3. Scroll down to Miscellaneous Options, and then press + on the remote.
4. Scroll down to Preferred Source Detection.
5. Press ENTER on the remote. Each press will change the setting.
6. Press MENU to exit the menu.
Figure 20. Preferred Source Detection
Main Menu
Picture
Size & Position
Advanced Options
Program Information
Aspect Ratio & Wall
Memory
Diagnostics
Advanced Options
Color Balance
Miscellaneous Options
Engine Alignment
Menu Options
Lamp Settings
Serial Port Settings
Auto Setup Options
Miscellaneous
Beeper
Curtain Pattern
Preferred Source Detection 16 x 9
HD Interlaced Content
White
Normal
Auto Codes
Plug and Play (EDID Enable)
Inverted Installation