E – 33
Switcher Gain
This feature adjusts the input level of the signal. This must be done
to each color:R, G, and B.
Volume
This feature adjusts the volume of the audio output. Adjust the sound
corresponding to the slot.
Ref Adj
Keystone
This feature corrects the keystone (trapezoidal) distortion to make the
top of the screen longer or shorter to be the same as the bottom.
Use the
䊴
or
䊳
buttons on the slide bar to correct the keystone (trap-
ezoidal) distortion.
Keystone distortion
Normal
NOTE:
1) With the projector aimed directly at the screen the maximum keystone angle
that can be corrected is +/- 15 degrees.
2) When "Resolution" is set to "Native", this feature is not available, and the stored
settings and adjustments are invalid.
Depending on the type of graphics being used, the picture may get blurred or
keystone correction may not be possible when excessive keystone correction
is used.
The idea is, the closer you are to native resolution, the better image you will
see.
NOTE:
The keystone feature is not available when the test pattern or the blue
back is displayed.
Switcher
(available only when used with ISS-6020)
The Lens Memory function stores the adjusted values when using shift,
focus* and zoom buttons on the projector cabinet or the remote control
for a specific signal.
Example of usage:
When a signal with 4:3 aspect ratio and a signal with 5:4 aspect ration
both need to be displayed on the 4:3 screen.
Normal Condition (for the above example)
Perform shift, focus* and zoom adjustments to the signal with 4:3 as-
pect ratio first since it is the native resolution of the projector. Both sig-
nals with 5:4 and 4:3 aspect ratio can be displayed, however the signal
with 5:4 aspect ratio will not fit properly on the screen.
To eliminate this size change, optimum values for shift, focus* and zoom
can be stored separately for the two signals. This can be done also for
two signals with the same aspect ratio. Memory (storage) of these val-
ues allows projected images to be optimum upon signal switching.
Follow the procedure below to accomplish this.
Lens Memory
1) Select "Projector Options"
→
"Setup"
→
"Page 4"
→
"Lens Memory" and
insert a check mark in the Lens Memory check box.
2) Set the projector to no-signal condition or project a signal (in the above
example a signal with 4:3 aspect ratio) and adjust shift, focus* and zoom.
3) Select "Adjust (Source)"
→
"Lens Memory"
→
"Reference/Custom" and set
to "Reference".
4) Press "Store" to store the lens values for this signal into memory.
5) Project a different signal (in the above example, a signal that is not 4:3
aspect ratio or a signal with 4:3 aspect ratio that you wish to adjust with
different values) and adjust shift, focus* and zoom.
6) Select "Adjust (Source)"
→
"Lens Memory"
→
"Reference/Custom" and set
to "Custom
7) Press "Store" to store the lens values for this signal into memory.
The difference between "Reference" and "Custom"
"Reference" is a memory with adjustment values stored for either a no-
signal condition or a newly input signal. Usually a signal with 4:3 aspect
ratio would be used since it is the native resolution of the projector.
"Reference" is a one-time only memory location.
"Custom" is a memory for a signal that would need adjustment values
stored that would be different from the values stored in the "Reference"
memory. "Custom" can be stored for each individual input signal.
Note that when "Reference" is stored, all values will be overwritten since
they are not adjustments that change with each signal.
In the example above, signals with 4:3 aspect ratios are recommended
for "Reference", but signals having other aspect ratios can also be used.
Another method to store is to press the INFO button while holding the
CTL button of the remote control.
Note that when using the remote control for storing, storage will be in
"Reference" when the "Lens Memory" setting of the menu is "Refer-
ence", and storage will be in "Custom" when the setting is "Custom".
Defaults such as newly input signals are "Reference".
* See "Tips on Adjusting Focus for Lens Memory Function" on page E-
46 for more information.
Lens Memory
