Section 3: Operation
020-100001-01 Rev. 01 (04/07)
3-71
.
No Signal
The message
"No signal"
occurs when there is no source signal detected at the
selected input—both HSYNC and VSYNC are inactive and the screen background is
black. Connect or correct the signal, or try another input.
Bad Sync
The message
"Bad Sync"
occurs when HSYNC or VSYNC are active but the signal
cannot be displayed. Such a condition occurs when only one of the two sync signals is
present or when either sync signal is unstable or is the wrong frequency. Correct the
signal or select another input.
Other Signal Error Messages
In addition to the common
"Bad Sync"
and “
No Signal
” errors, you may encounter a
signal error message indicating that HSYNC and/or VSYNC are either too fast or too
slow. When such a message appears, check the frequencies shown in the
Status
menu.
If they are correct, the projector does not recognize the signal. On some PCs you may
be able to change the settings to generate a compatible signal. If the frequencies
shown in the
Status
menu are incorrect, check the cabling to see where the problem
might originate.
When the projector encounters a system malfunction, either a
System Warning
message or a
System Error
message may appear. Both types of messages are
accompanied by a numerical error code on the status LED display. A system
malfunction can be cleared with
Exit
Exit
from presentation level, but may indicate
the need for service by a qualified service technician.
NOTE:
System messages appear on-screen only if Display Error Messages has been
set to “Screen” or “All”.
System Warnings
A system
warning
indicates that a system malfunction has been detected (see
Status
LED Codes
, below). A system warning message replaces any input signal message
and disappears when the input signal status changes. While the projector will remain
operational, the message indicates the presence of a potentially serious problem that
should be investigated. You can press
Exit
Exit
to remove the message, but for best
results you should reset the projector—power the projector down and up again with
the
(power) key.
System Errors
A system
error
message indicates that a serious malfunction has been detected and
must be investigated as soon as possible (see
Status LED Codes
, below). The projector
will no longer operate and must be reset—power the projector down and up again
with the
(power) key.
System Warnings / Errors
f
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