cause/remedy:
1. confirm all power connections are still ok.
2. make sure the lens cap has been removed.
3. make sure the shutter is open.
5. is the input selected? check connections.
symptom··image appears “squeezed” or vertically stretched into center of screen
cause / remedy:
1. check your resizing selection.
2. the anamorphic lens (optional) may be needed for this source.
symptom··the projector is on but there’s no display...
cause / remedy:
1. was a lens cover accidentally left on? remove lens cover.
2. make sure the shutter is open.
3. is the lamp ignited? check for interlock problems such as an open lamp door.
4. is the correct input selected?
5. is the source connected properly? check the cable connections and make sure the correct source is selected.
6. is ac power connected?
7. can you access test patterns? if so, check your source connections again.
symptom··the display is jittery or unstable…
cause / remedy:
1. if the display is jittery or blinking erratically, ensure that the source is properly connected and of adequate quality for detection. with a poor quality or improperly connected source, the projector will repeatedly attempt to display an image, however briefly.
2. the horizontal or vertical scan frequency of the input signal may be out of range for the projector. refer to section 6, specifications for scan frequency ranges.
3. the sync signal may be inadequate. correct the source problem.
symptom··the display is faint…
cause / remedy:
1. brightness and/or contrast may be set very low.
2. the source may be double terminated. ensure the source is terminated only once.
3. the source (if non-video) may need a different sync tip clamp location.
symptom··the upper portion of the display is waving, tearing or jittering…
cause / remedy:
1. this can sometimes occur with video or vcr sources. check your source.
symptom··portions of the display are cut off or wrap to the opposite edge…
cause / remedy:
1. resizing and/or blanking may need adjustment.
symptom··the display appears compressed (vertically stretched)…
cause / remedy:
1. the frequency of the pixel sampling clock is incorrect for the current source.
2. resizing, vertical stretch and positioning options may be improperly adjusted for the incoming source signal.
3. you may need an anamorphic lens for sources that have been supplied in a resized and vertically stretched format.
symptom··data is cropped from edges
cause / remedy:
1. check settings for blanking.
2. if incoming data is still missing from the image, reduce the image size to within the display area available in the projector.
symptom··display quality appears to drift from good to bad, bad to good…
cause / remedy:
1. the source input signal may be of low quality.
2. the h or v frequency of the input may have changed at the source end.
symptom··the display has suddenly frozen…
cause / remedy:
1. if the screen blacks out inexplicably, it is possible that excessive voltage noise on the ac or ground input has interrupted the projector’s ability to lock on to a signal. power down the projector and disconnect from ac. then plug in again and power up as usual.
symptom··colors in the display are inaccurate…
cause / remedy:
1. the color, tint, color space, color temperature and/or other settings may require adjustment.
2. make sure you are using the proper channel for this source.
symptom··values in color saturation slidebars vary over time
cause / remedy:
1. once defined, color saturation slidebar values fluctuate over time and will likely be different upon subsequent visits to this menu. this is normal and should be ignored, as these changes do not redefine the x/y coordinates or color gamut.
symptom··the display is not rectangular…
cause / remedy:
1. check leveling of the projector. make sure that the lens surface and screen are as parallel to each other as possible.
2. is the vertical offset correct? adjust as necessary using the vertical offset knob.
symptom··the display is “noisy”…
cause / remedy:
1. display adjustment at your input source may be required. adjust pixel tracking, phase and filter. noise is particularly common on ypbpr signals from a dvd player. (if using a pc source, adjust using a high-frequency test pattern with one pixel on/off throughout.)
2. the video input may not be terminated. make sure the video input is terminated (75. ). if it is the last connection in a loop-through chain, the video input should be terminated at the last source input only.
3. the input signal and/or signal cables carrying the input signal may be of poor quality.
4. if the distance between the input source device and the projector is greater than 25 feet, signal amplification/conditioning may be required.
5. if the source is a vcr or off-air broadcast, detail may be set too high.