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With the Digital Video Recorder’s power switched off, check all cable connections. If the Digital Video
Recorder is connected to any peripheral devices, look for loose or disconnected cables. If the Digital
Video Recorder is too close to a wall, a cable connection may be loose or the cables may be crimped.
The Power-On Self Test
The Power-On Self Test (POST) runs every time you turn on or reset the Digital Video Recorder. The
POST checks memory, the main system board, the display, the mouse, the disk drives, and other
installed options.
A few seconds after you turn on your Digital Video Recorder, a copyright message appears on your
display screen. A memory test message appears next; as the test continues, memory size increases
until all installed memory is tested.
Two classifications of malfunctions can be detected during the POST:
•
Error messages that indicate a failure with the hardware, the software, or the Basic
Input/Output System (BIOS).
These critical malfunctions prevent the Digital Video Recorder
from operating at all or could cause incorrect and apparent results. An example of a critical error
is CPU mal-function.
•
Messages that furnish important information on the power-on and boot processes (such
as memory status).
These non-critical malfunctions are those that cause incorrect results that
may not be readily apparent. An example of a non-critical error would be a memory chip failure.
In general, if the POST detects a system board failure (a critical error), the Digital Video Recorder halts
and sends out a series of beeps. If failure is detected in an area other than the system board (such as
the display, keyboard or mouse) an error message is displayed on the screen and testing is stopped. It
is important to remember that the POST does not test all areas of the Digital Video Recorder, but only
those that allow it to be operational enough to run diagnostic programs.
If your system does not successfully complete the POST, but displays a blank screen, emits a series of
beeps, or displays an error code, consult your dealer immediately.
