MAINTENANCE
4-12
DLV 1280 User's Manual
2. The room lighting may be too bright. Lower the intensity of the room
lighting. Reduce light reflections as much as possible.
3. Increase contrast and/or brightness of image.
4. The projector may be too far from the screen. Move the projector closer to
the screen.
5. Try an Auto-Setup (see Main menu)
6. Is the "Status" LED flashing a pattern of yellow and red lights while the
"Power" LED is steady red? This pattern indicates an internal system error.
If the problem persists contact a qualified Electrohome service technician.
7. Was the lens cover accidentally left on? Remove lens cover.
The projector does not respond to the infrared remote keypad...
1. Does the green "Status" LED flash each time a key is pressed? If not, DLV
1280 is not receiving the keypad's IR signals. Ensure the keypad is pointed
either at the front or rear of the projector, or at the screen.
2. The viewing path between the IR keypad and the projector (or screen) may
be blocked. Ensure there is a clear line-of-sight between the keypad and the
projector (or screen).
3. The batteries in the IR remote keypad may be weak. Refer to 4.3, Replacing
Keypad Batteries for instructions on how to replace the batteries.
4. There may be unusual lighting conditions in the room affecting IR keypad
operation. Determine if such conditions exist and correct.
5. The IR keypad may have been disabled for use with this projector(s). See
2.10, Keypad Protocols and 3.7, Adjusting and Checking System
Parameters.
The power is on but the lamp is not...
1. The projector probably became overheated. Allow to cool and make sure that
nothing blocks projector vents. Do not operate in environments warmer than
35°C (95°F).
2. The lamp may have reached the end of its life. Replace the lamp assembly as
described in 4.4, Replacing the Lamp.
The display is jittery or unstable...
1. If the display is jittery or if it disappears and reappears erratically, check that
the source is properly connected and that its signal is of adequate quality for
detection. For example, the projector scans the default input
for a
signal to display. If a poor quality or improperly connected source is
connected, the projector will briefly and repeatedly attempt to display an
image. If no source is connected, the "No Signal" error message appears over
a blank display. Correct the source connection.
2. The horizontal or vertical scan frequency of the input signal may be out of
range of the projector. Refer to Section 5, Specifications for scan frequency
ranges.
3. Sync signal may be inadequate. Correct the source problem.
4. The input signal type may conflict with the input. Use the input that matches
the source.
5. Pixel tracking and phase may need adjustment.
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