MAINTENANCE
Symptom:
The display is not rectangular in shape.
Cause/Remedy:
1) The geometry settings may not be set correctly. Adjust the display
geometry settings. (Press
GEOM
for the Geometry menu).
Symptom:
The display is ''noisy''.
Cause/Remedy:
1) The input may not be terminated. Make sure the input is terminated
(75 ohms). If it is the last connection in a loop-through chain, it should be terminated at
the projector (only).
2) The signal cables carrying the input signal may be of poor quality. Use only good
quality signal cables. Accurate Imaging cables are recommended.
3) The distance between the input source device and the projector may be too great. If the
distance between the input source device and the projector is greater than 25 feet, signal
amplification/conditioning may be required.
4) There may be interference from other equipment. Keep the projector away from
devices, which radiate electromagnetic energy such as motors and transformers. Common
sources of these are slide projectors, speakers, power amplifiers, elevators, etc. Keep
35mm slide projectors at least 2 feet away from the projector.
5) The input signal may be of poor quality.
6) If the source is a VCR or off-air broadcast, detail may be set too high.
Symptom:
Modified display settings are not being saved in the active setup memory.
Cause/Remedy:
1) Is the active setup memory locked? Press
SOURCE
to display the
Source Message. If a key is displayed, unlock the setup. (Press
UTIL 1 3
.)
2) ASR is set to On for the current input memory and an ASI was automatically
performed due to mismatched scan frequencies.
Symptom:
The display is OK when displaying the crosshatch test pattern (
#
) or status
screen (
*
) but when trying to display a source, nothing is visible.
Cause/Remedy:
1) You may not be selecting the source correctly. Refer to section 3.3,
Source Selection,
for source selection instructions.
2) The source may not be connected properly. Verify that the input source is
active and check the cables between the source and the projector.
ACON Errors >
If the projector includes the optional ACON feature and an error message occurs during
automatic convergence or Learn Screen, proceed through the following checklist.
*
Is the ambient lighting appropriate for projection? A number of problems could result
during automatic convergence and/or Learn Screen if the ambient lighting is too bright.
Dimmed incandescent lighting is preferred over fluorescent lighting. If error messages
such as ''Sensor Lock Failed: Low Signal'' or ''Learn Screen Failed: Insufficient
Magnitude'' result, lower the ambient lighting, especially at the projection screen.
* Is the view path of the Locator Assembly completely unobstructed? The view path
between the photosensor lens of the Locator Assembly and the entire screen must be
completely unobstructed for proper ACON operation.
4-7
Summary of Contents for Model 8
Page 1: ......
Page 44: ...INSTALLATION SETUP Figure 2 29 ACON Installation Examples 2 38 ...
Page 104: ...Physical Dimensions 5 5 ...
Page 105: ...5 6 ...
Page 113: ...A p p e n d i x B B 1 ...
Page 114: ...B 2 ...
Page 115: ...C 1 ...
Page 116: ...C 2 ...
Page 117: ...D 1 ...
Page 118: ...D 2 ...
Page 119: ...E 1 ...
Page 120: ...F 1 ...
Page 121: ...F 2 ...
Page 122: ...F 3 ...
Page 123: ...F 4 ...
Page 124: ...F 5 ...
Page 125: ...F 6 ...
Page 126: ...F 7 ...
Page 127: ...F 8 ...
Page 128: ...F 9 ...
Page 129: ...F 10 ...
Page 130: ...G 1 ...
Page 131: ...Index 1 ...
Page 132: ...Index 2 ...