Runco Vx 3c Projector User Manual

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OPERATION
Front IR / Back IR
As described in Section 2, the standard IR remote keypad is capable of sending data to the pro-
jector in either one of two protocols called Aor B. Likewise, the front and rear IR sensors on
the projector can be set to accept IR data accordingly, responding to A, Bor
both. The projector’s Aor Bdefault is adequate for most single-projector
installations. Select a specific protocol to prevent interference when you are
controlling two protectors in the same area and want to work with one projec-
tor at a time.
Note that the front and rear IR sensors cannot respond to differentprotocols-if you change a
protocol for either sensor to anything other than OFF, the protocol for the other sensor also
changes. For example, setting Front IRto Balso changes the BackIR to B. If you want only
onesensor to respond to a particular protocol-A, B, or Aor B-disable the other sensor by set-
ting its protocol to OFF.
If you want to disable bothIR sensors, you cannot use the IR remote keypad to select the sec-
ond OFFsetting. This safeguard prevents accidentally disabling a keypad while you are using
it. Instead, use either the built-in keypad or the wired remote to set the remaining active sensor
to OFF. The projector will no longer respond to an IR remote keypad.
IMPORTANT
Keep at “A OR B” unless you are sure of
the current IR keypad protocol.
NOTES: 1)The IR remote keypad for this projector is set at Runco to “Protocol A”. See 2.10,
Keypad Protocols and Conversionfor information about changing the keypad protocol. 2)A
key press from a conflicting protocol will cause a single yellow flash on the Status LED located
in the lower right corner of the rear projector panel.
Wired Keypad
Like the IR remote keypad, the optional wired keypad is either a “Protocol A” keypad (default)
or a “Protocol B” keypad. Likewise, the projector can be set to accept wired keypad data
accordingly, responding to Aor B. If desired, you can prohibit the projector from responding to
a particular wired keypad protocol, or you can ensure that the projector responds to either pro-
tocol (default). You can also prevent the projector from responding to the keypad entirely. In
the pull-down list, select the desired protocol.
NOTE: The wired keypad for this projector is set at manufacture to “Protocol A”. See 2.10,
Keypad Protocols and Conversionfor information about changing the keypad protocol.
ADDING A PROTOCOL: To add a protocol, select the Aor Boption.
CHANGING A PROTOCOL: As a safeguard, you cannot accidentally select an option in the
“Wired Keypad” list that would disable the wired keypad during use, since such options are
automatically disabled in the list. In other words, you cannot switch to the opposite protocol or
select OFF using the wired keypad. Instead, if you want to quickly change to the other protocol,
you may find it more convenient to use one of the other keypads (the built-in keypad or the IR
remote) to execute the protocol change for the wired keypad. The projector will now recognize
only the opposing change for the wired keypad protocol. Or, if you prefer, use the wired keypad
1. A or B
2. A
3. B
4. Off 
						

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OPERATION
to safely change its own protocol:
1. Select the Aor B option. This will ensure that once your keypad is manually changed
(see Step 2), it will still be recognized by the projector.
2. Unplug the keypad and change the protocol in the keypad as desired. Do this either
by entering the short-cut software command or by hard-wiring the keypad as
described in 2.10,  Keypad Protocols and Conversion.
3. Plug the keypad back into the projector. Return to the Communicationsmenu and
select the new protocol you have just set up in the wired keypad.
TURNING OFF THE WIRED KEYPAD: If you want to disable the wired keypad entirely,
you cannot use it to select the OFFoption. This safeguard prevents you from accidentally dis-
abling the wired keypad during use. Instead, use either the built-in keypad or the IR remote
keypad to select OFF. The projector will no longer respond to the wired keypad.
Broadcast Keys
Enter a checkmark if you want keypad commands sent to one projector to be relayed to all pro-
jectors in a network. Note the          key will temporarily “override” the effect of a broadcast
setting and allow you to control a specific projector when necessary.
Projector
Enter a three-digit number (such as “001”) to assign or change a number to the projector cur-
rently in use-if the current projector already has a number
assigned, that number will appear here. Numerical identity
for projectors is required whenever you want to communi-
cate with a single projector within a multiple-projector
application (see         key description in 3.8, Using the
Keypad). If you make a mistake in assigning or changing
the projector number, press        to cancel. 
For complete information about controlling multiple pro-
jectors, see Section 3.8.
Preferences!
Use Preferencescheckboxes and pull-down lists to alter how the projector responds to com-
mands and displays its parameters. Refer to the “Using Slidebars and Other Controls” subsec-
tion if you need help. Changes made to the Preferencesmenu will be saved when you exit the
menu.
1.
2.
3.
4.
5.
6.Baud Rate
Front IR
Back IR
Wired Keypad
Broadcast Key
Projector Communications        38400
A or B
A or B
A or B
#
003
Current projector number
*To assign a new number, enter up to 3 digits
(1=001, 2=002, etc.)
Proj
Exit
Proj 
						

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OPERATION
Figure 3.16. Preferences Menu
Image Orientation
Choose from Front, Rear, Inverted Front, Inverted Rear according to your installation. If the
setting is incorrect, the image will be reversed and/or upside down. See 2.6, Operating
Orientationfor an illustrated explanation.
Keystone
Non-functional in this version of software.
Language
This projector displays menu and help text in English only.
Display Channel List
Enter a checkmark if you want to see a scrollable channel list whenever you press          from
your presentation (note that each channel to be included in the list must also be tagged in the
“In Menu” checkbox in the Channel Setupmenu). This option also enables on-screen feedback
when using the         key. If you prefer to hide the channel list and input dialog box while
switching channels and sources during a presentation, do not enter a checkmark.
NOTE: The Channel List and input dialog box cannot be hidden when a menu is displayed.
Display Slidebars
Enter a checkmark to superimpose a small slidebar over the current image when an adjustable
parameter is selected directly with a key (the option does not affect slidebars in menus). These
“direct” slidebars include volume, contrast, brightness, position, pixel tracking and phase, and
others. If “Display Slidebars” is unchecked, these slidebars will be hidden during adjustment.
Display Error Messages
Choose in what way you want to be notified of errors detected in either the incoming signal or
projector. Select “Screen” or “All” if you want a brief message displayed. If you prefer to be
notified via a serial communication only (RS-232 or RS-422), select “RS232” instead. To dis-
able error messages entirely (except invalid user entries), select “Off”.
NOTE: Display of invalid user entries cannot be disabled, even if you choose the “Off” option.
Chan
  Input 
						

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OPERATION
Auto Power Up 
Enter a checkmark to enable the projector to automatically power up afte\
r losing power due to
unplugging or a power failure. Note that unsaved display adjustments may\
 be lost. 
Video Termination 
Enter a checkmark to terminate the video inputs 3 and 4 (75 W). The in\
put should be terminat-ed unless the signal loops through (continues) to another
projector or display device, in which case only the last
projector in the chain should be terminated.
Menu Options
In this submenu, choose the default location desired for on-screen menus\
. You can use the shift
options to move a location up or down, creating a Custom location. Note \
that menus for this
projector often expand and can be quite large-avoid placing them too low or too far to the right
where they may be cropped.
Figure 3.18. Submenu for Menu Options
Advanced Controls !
The Advanced menu includes a variety of special options
that an experienced operator may want to adjust for certain
applications, such as color-critical displays or multiple pro-
jector walls. In addition, this menu provides access to test
patterns, lamp settings and service, and the password-pro-
tected Service submenu.
Figure 3.18. Advanced Menu   
Diagnostics
Use the Diagnostics submenu to select a test pattern or to
freeze the current image, both helpful for closely examining
performance. You can also turn specific colors on or off to
further pinpoint where a suspected problem may be occur-
ring. 
* For all single free-standing projectors 
* For last projector in a network 
* For all networked projectors  except 
   the last one
1. 4:3 Top Left 
2. 4:3 Inset 1
3. 4:3 Inset 2
4. 16:9 Top Left
5. 16:9 Inset 1
6. 16:9 Inset 2
7. Custom
Menu Options
1. Menu Location Custom 
2. Horizontal Shift  21
3.  Vertical Shift       0
Using a Shift will change  
location to Custom 
						

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OPERATION
TEST PATTERNS- Select this option to use a pull-down list of all avail-
able internal test patterns.
NOTE: For quicker access from your presentation, use the          key to
cycle through the patterns. At the last pattern, press          to return to your
presentation-or press         at any time.
FREEZE IMAGE- Use the “Freeze Image” checkbox to freeze (stop) the
image at a single frame. This diagnostic tool is useful if you need to exam-
ine in detail a still version of the incoming image that may not be “freez-
able” at the source. For example, in moving images it is difficult to observe artifacts such as
external deinterlacing/resizing and signal noise.
COLOR ENABLE - Select which color or colors you want to see, useful while working with
color temperature white levels or input levels.
Input Levels
NOTES: 1)It is recommended that only experienced users use the Input Levelsmenu-the pro-
jector automatically optimizes input levels for all but the most unusual of sources. 2)Always
check that overall contrast and brightness settings are near 50 andthat color temperature is
properly set up on an internal grayscale test pattern before attempting an input level adjust-
ment. 3)There must be at least one white pixel present in the image for “Auto” to work.
Good RGB or input levels-that is,
the drivesand blacklevelsfor each
of the three colors, red, green and
blue-ensure that images from analog
sources other than decoded video
have maximum contrast without
crushing black or white. By default
(and in an “Auto Setup” from the
Main menu), the projector automati-
cally determines the best input levels
by monitoring image content and
adjusting the controls appropriately-further adjustment is typically not required to obtain proper
blacks or whites. NOTE: This automatic adjustment requires at least 1 white pixelin the image.
Without a white pixel, input levels may produce skewed colors, particularly in non-video
images.
However, for a very unusual source an experienced user may prefer to use the Input Levels
menu (see Figure 3.19). This adjustment, which is actually a calibration process to compensate
for differences in sources and cabling, enables an experienced user to perfect the source image
input levels.
AUTO INPUT LEVEL - Keep off for virtually all sources (default). Temporarily enter a
checkmark onlyif you are an experienced user and you have an unusual source that you feel
needs further color temperature and/or input level adjustment. After entering a checkmark, wait
for the six values to stabilize, then delete the checkmark.
Test
Exit
Test
Figure 3.20. Input Levels Submenu 
						

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OPERATION
BLACKLEVELS AND DRIVES - To check your image and adjust these controls:
1. Make sure overall Contrast and Brightness are both set to near 50. NOTE: Not
required for “Auto” adjustment.
!= 50 (approx.)
! = 50 (approx.)
2. Check the color temperature setup using an internal grayscale test pattern, adjusting
as desired to obtain a neutral grayscale. NOTE: Not required for “Auto” adjustment.
3. Make sure you are using an analog source not connected to INPUT 3or INPUT 4, as
Input Levels are not applicable for digital sources or sources going through the decoder.
A grayscale is recommended.
4. If the blacks and/or whites appear OK, input levels do not need adjustment. If the
image has poor blacks and/or white, continue with Step 5.
5. Temporarily enable “Auto” in the Input Levels submenu. Wait for all 6 values to sta-
bilize.
6. Delete the “Auto” checkmark and leave the Input Levelsmenu.
To adjust black levels and drives manually, judge by eye and change one or more of the six lev-
els as necessary to obtain proper blacks and whites. You may want to see only a certain color
while adjusting-use the “Color Enable” option (described below).
CLAMP TIP- This option (full name sync tip clamping) can brighten the image produced
from certain high resolution, high frequency graphic sources. Enter a checkmark if the image
appears unusually dim, if there are horizontal streaks across the image, or if there is significant
color drift. Delete the checkmark if the image is either sufficiently bright or overly bright.
NOTE: The sync tip clamping option is not used for video sources or any RGB source with sync
information on the video (e.g., sync-on-green).
COLOR ENABLE- Select which color or colors you want to see, useful while working with
color temperature white levels or input levels.
NOTES: 1)Input levels apply for the current source only, but for any color temperature used.
2)Assuming that color temperature has been set up based on the internal test patterns, you can
then set up input levels for a given source so that it matches the color temperature of the inter-
nal test patterns.
Cont
Brite 
						

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OPERATION
Odd Pixel Adjustment 
NOTE: For sources with Color Space set to RGB only.
When using certain RGB sources with static
images, you may need to adjust the normal gain
or offset of odd pixels in relation to even in
order to smooth out very narrow (1-pixel wide)
checks or vertical stripes. These patterns signify
adjacent “on” and “off” pixels, and can be
removed as follows:
1. Use an external grayscale test pattern of some kind (make sure it has both dark grays
and light grays).
2. Make sure the image is displayed in its native resolution, i.e. with No Resizing.
3. Display a single color - choose through the “Color Enable” menu option or use the
key shortcuts shown on the back of the remote keypad.
4. Examine an area of darkestgray (but not black). If there is a 1-pixel wide pattern
present, adjust “Odd Pixel Adjustment” offsetfor the current color. Stop when the pat-
tern disappears and the area is smooth.
5. Examine an area of lightestgray (but not white). If there is a 1-pixel wide pattern
present, adjust “Odd Pixel Adjustment” gainfor the current color. Stop when the pattern
disappears and the area is smooth.
6. Repeat for each color, adjusting offset then gain for each.
NOTES:  1) Always adjust offset before gain, since offset affects gain. 2) A value of 128 repre-
sents no change in normal odd pixel offset or gain. 3) Odd Pixel Adjustment eliminates “1 pixel
on, 1 pixel off” patterns only, not any type of larger patterns.
Advanced Color Temperature
Select the Advanced“Color Temp” option if you want to apply, alter, add, or copy a color tem-
perature, or if you want to use an unaltered factory default color temperature.
By default, the projector can utilize any of four calibrated factory-set color temperatures: 3200,
5400, 6500 or 9300 (expressed in degrees Kelvin). For most applications, these temperatures
will display accurate and realistic colors from a variety of sources. They can be selected at any
time in either the Image Settingsmenu or in the Advanced Color Temperaturemenu.
Func 
						

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OPERATION
However, if you require extra color temperatures, you can also add up to five custom color tem-
peratures-four User and one Interpolated-by defining them within the Advanced Color
Temperaturemenu (each defaults to 6500K until then). Any User or Interpolated tempera-
ture created here is immediately applied, or it can be selected at any time from the Image
Settings menu as usual, regardless of your source or channel. The Advanced Color Temperature
menu options are described below.
NOTE: For best results, use an internal grayscale test pattern when working with color temper-
ature.
COLOR TEMP- See Figure 3.20. Upon opening the Advanced Color Temperaturemenu, the
current temperature appears as the top option. You can change to a different color temperature
here as desired, just as in the Image Settingsmenu. Note that if you select a User color tem-
perature, the White Level options further down in the Advanced Color Temperaturemenu are
no longer disabled-you can adjust them as desired to define or change a User color tempera-
ture (see White Levels, below). Likewise, selecting Interpolated here activates the
Interpolated slidebar for defining or changing an interpolated color temperature.
INTERPOLATED- Select this option if you need a specific color temperature that lies some-
where between one preset color temperature and another. Adjust the slidebar to define a new
temperature that will be interpolated from the neighboring presets (for example, 7841 is inter-
polated from 6500 and 9300). It can be used any time and appears as a 4-digit temperature
when present.
WHITE LEVELS -These 3 controls are adjustable only if a User choice is selected (in
which case User 1, 2, 3 or 4 appears at the top of the Advanced Color Temperature menu).
Their current values are shown for the active color temperature. Changing a white level here
changes the drive (contrast) for that color, essentially creating a new color temperature that is
warmer or cooler etc. When you are satisfied with the new User temperature, it can be
used immediately upon exit or it can be selected from either the Image Settings menu or the
Advanced Color Temperaturemenu as usual. You can re-define a User color temperature at 
any time using the Advanced Color Temperaturemenu.
COLOR ENABLE- Select which color or colors you want to see, useful while working with
color temperature white levels.
Figure 3.20. Advanced Color Temperature Menu 
						

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OPERATION
COPY FROM - Use this option to replace the currently selected User color temperature
setup with that of another. This function can be particularly useful for creating a starting point
for a new User color or for accessing an unaltered factory default. It is disabled for all color
temperatures exceptUser. See Figure 3.21.
Figure 3.21. Copy From 
To create a starting point:To set a starting point for a new custom user color temperature,
select a user temperature, then highlight Copy From and select a temperature that is similar to
what you want. Adjust white levels from there as desired.
To use a factory default: The preset color temperature setups (3200K, 5400K, 6500K and
9300K) can be altered from within the password-pro-
tected Service menu only-note that although such an
alteration changes the setup and appearancefor a pre-
set, it does not change its name. If you suspect that
you are using a preset temperature that has been
altered and you want instead to use the original cali-
brated factory color temperature without clearing the
entire projector memory, you can use the Copy From
option in the Advanced Color Temperaturemenu to set
up a User temperature with settings from a perma-
nent factory preset:
1. Enter the User color temperature you wish to update at the top of the Advanced Color
Temperaturemenu, such as User 2.
2. From the Copy From list, select the matching temperature labeled Factory (such as
Factory 5400K). 
3 The setups for the User color temperature you entered at the top of the Advanced Color
Temperaturemenu will now be updated/replaced by those for the permanent factory cali-
brated temperature you selected in the Copy From list. Again, a User temperature can
be altered at any time, if desired.
Factory 3.22 Presets and 
“Factory”presets 
						

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OPERATION
Advanced Image Settings
DECODER LUMA DELAY- This option
affects any incoming composite or S-video sig-
nal, delaying the luma signal (intensity) in rela-
tion to the chroma (color). In the image,
increasing the luma delay will move luma (seen
as a shadow where colors overlap) to the right
slightly, with colors remaining in place.
Decreasing this delay will move the shadow slightly to the left. If necessary, adjust so that no
shadows occur with adjacent colors. 
INPUT VIDEO BLACK- This option determines where black levels are determined in rela-
tion to the clamping location on a video signal, so that blacks are neither crushed (i.e., with
dark gray appearing black) nor elevated (i.e., with black appearing dark gray). If black is
crushed in the current image, set to 0 IRE so that blacks are at the clamping level. If black is
elevated, set to 7.5 IRE so that blacks are set above the clamping level.
VCR- This option determines to what degree the projector tolerates signal disturbances. The
correct setting is automatically determined and set according to the type of incoming source
signal-for instance, there should be a checkmark for all VCR sources. The VCR option may
require a change from its auto setting in very rare circumstances only, such as if you are having
difficulty switching between two unusual and almost identical VGA computer sources.
Otherwise, it is not necessary to change this option.
MOTION FILTER- This option is most useful for smoothing out de-interlacing artifacts that
sometimes occur with moving interlaced images (such as HDTV). By default, the correct set-
ting is automatically determined according to the type of incoming source signal. If desired,
override the default setting as follows:
1. Turn to OFF(delete the checkmark) if you have a static image.
2. Turn to ON(enter a checkmark) if your mov-
ing image exhibits motion artifacts. The image will be
smoother while forfeiting some sharpness.
Lamp
Whenever you install a new lamp in the projector you need to
access the Lamp submenu and record the lamp serial number
in the projectors memory. You can also set different Lamp
submenu options such as intensity (output) or power required.
These setups can be changed at any time. 
NOTE: See 4.4, Replacing the Lamp and Filterfor complete
instructions on installing a new lamp in the projector.
From the Advanced menu, select the Lamp option for access to the Lampsubmenu, where all
lamp functions and data appear. Read-only information includes the number of hours logged on
the lamp so far and the serial number recorded for the installed lamp.
Figure 3.23. Lamp Submenu