ViewSonic DLP PROJECTOR PJD7400W User Manual page 27

6. The projector will start to search for input signals. The current input signal being
scanned appears in the upper left corner of the screen. If the projector doesn't detect a
valid signal, the message 'No Signal' will continue to be displayed until an input
signal is found.
You can also press SOURCE on the projector or remote control to select your desired
input signal. See "Switching input signal" on page 27
If the frequency/resolution of the input signal exceeds the projector's operating range, you will
see the message 'Out of Range' displayed on a blank screen. Please change to an input signal
which is compatible with the projector's resolution or set the input signal to a lower setting.
See "Timing chart" on page 64 for details.
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for details.