Runco Vx 6c Projector User Manual

							When you are installing the system for the first time, the first order of business is to define what type of screen
will be used with this system. If a 1.78:1 (16:9) or 1.85:1 screen is used, highlight 16:9 SCREEN and press
ENTER. If a standard 4:3 screen is installed, highlight 4:3 SCREEN and press enter.
The purpose of defining the screen type is to tell the processor how to create aspect ratios (see page 6-16 for
a definition of aspect ratios). For example, on a 16:9 screen, the letterbox and anamorphic aspect ratios will
use the entire 16:9 screen, and the 4:3 aspect ratio will be displayed in the center of the 16:9 screen (youd
have black bars on the left and right sides of the image). 
On the other hand, on a 4:3 screen, the 4:3 aspect ratio would fill the screen, but the letterbox and
anamorphic aspect ratios would be displayed in the center of the screen vertically (there would be black bars
on the top on bottom of the image).
Screen Type
6-14
Image Shift
Hstart: 268
Vstart: 131
Image Shift
IMAGE SHIFT moves the entire image up, down, left or right. If the image is slightly off-center on-screen
after installation, using IMAGE SHIFT can center the image on your screen or display. 
While using IMAGE SHIFT will not cause any problems with your display, it is possible to use too much
image shift, which could cause the image to shake or disappear. Therefore, Runco recommends that
image shift be done with the display device itself whenever possible. 
						

							The BLANKINGfunction allows you to cut off part of the image to fit the screen properly, or to eliminate
anomalies on the extreme outsides (usually the top) of the image. This can be done to the top, bottom,
left or right sides individually.
To adjust BLANKING, highlight the desired area you wish to blank (top, bottom, left or right), and use the
left and right arrows to make the adjustment.
Most CRT projectors themselves have blanking controls, and it is recommended that you use the
controls on the projector as opposed to the processor, if possible. In the event that your display device
does not have blanking controls, however, use the blanking controls provided in the processor.
In the event that your VHD Ultra Controllerappears to have a software problem, or adjustments have
been made so far out of range that the image is no longer on-screen or discernable, you can reset the
processor back to factory values. This sets ALL settings back to factory values, so any adjustments made
previously will be lost.
T
o reset your VHD Ultra Controller, follow this procedure:
·Turn off the MAIN POWER switch on the back of the processor
·Hold down the DOWN ARROW button, and turn the MAIN POWER SWITCH back on.
Continue holding the down arrow button until the LED on the front panel blinks, then release 
the down arrow button.
Once this is done, your processor has been completely reset to factory values.
After resetting the unit, Composite video will be the active source.
SYSTEM RESETis not on any of the menus; it must be performed using the instructions above.
Blanking
Top 131
Bottom 707
Left 241
Right 1292
Blanking
System Reset
6-15 
						

							FREQUENCIES HIGH/LOW affect the overall range of the CHROMA ENHANCE feature. For example, if
using a lower-quality video source such as a VCR, the FREQUENCIES should be set to LOW. For a good
ASPECT RATIOS
4 units wide
3 units tall
quality source such as a DVD player, set FREQUENCIES to HIGH. To set FREQUENCIES, press ENTER
while CHROMA ENHANCE is on-screen.
An ‘aspect ratio’ is simply the ratio of the width vs. the height of the screen. For example, the current aspect
ratio standard is 4:3 (or 1.33:1), where the image is 4 units wide and 3 units tall.
All of our ‘regular’ televisions are this aspect ratio. You have probably 
noticed that occasionally you’ll watch
a movie that does not fill the screen vertically. This is because the movie was filmed in WIDESCREEN
(letterbox), and the result is ‘black bars’ above and below the image:
Obviously, watching a movie like this does not lend itself to a truly cinematic experience! This is why
Runco invented the first-ever multiple aspect-ratio projection system back in 1991, so true movie-lovers
can watch actual widescreen (letterbox) movies on a WIDESCREEN!
6-16 
						

							A WIDESCREEN can be a number of aspect ratios; many movies are either 1.85:1 or 2.35:1, and HDTV
is always 1.78:1 (16:9). The way we create a widescreen (or LETTERBOX) aspect ratio is to take a full
4:3 image, then ‘blank’ (or cut off) the top and bottom so the displayed image is in a widescreen format.
For movies recorded in ‘letterbox’, there would be no information above and below the screen anyways,
so we’re not losing any of the picture. However, if you were to watch standard television broadcast this
way, you would lose some information (see next drawing).
Blanked (cut off)
areas Active image area
(Actual screen area)
As you can see, our screen in this example is a 1.85:1 ratio. The dashed lines show the area that we
‘blanked’. If you recall, watching a letterbox movie on a 4:3 screen gave us black bars; therefore with let-
terbox movies, we’re not losing any information!
The ‘other’ type of widescreen is called ‘ANAMORPHIC’. The image is still a widescreen format, but
instead of ‘blanking’ the top and bottom, we simply reduce the overall height of the image:
As a result, all objects will be ‘short and fat’ (like the circle above), right? Well, not if you’re using
software that is anamorphic. Most (but not all) DVD movies have an anamorphic option.
Anamorphic material will always produce a better image when using a high quality scaler such as the VHD
Ultra Controller.The reason is that you will actually get more lines of resolution (and ultimately more
6-17 
						

							MULTIFILM
Menu
12v Fuse
Mask ScreenRS-232 IN
VH BGR
Pass-through
Pb
Pr YRUNCORS-232 OUT
S-VIDEO
COMPOSITE
3.5
17.45
17
17.45
17
16
3.5
16
RUNCO
3.025
DIMENSIONS
Front Panel
Side
Rear Panel
To p
6-18 
						

							RS-232 COMMUNICATIONS
General Information
Baud rate:9600 (fixed)
Bits:8
No Parity
All protocol in ASCII format
RS-232 input connector pin numbers: TxD= Pin# 2
RxD= Pin# 3
GnD= Pin# 5
Command format (single command):
command value (i.e. brightness 30).
NOTE:
A space (not an underscore) must be used between the command and its value.
All Commands must be
followed by a carriage return.
Command string format:
command,command value, command etc.
(i.e. COMPOSITE,BRIGHTNESS 30,ANAMORPHIC)
NOTE:
In between commands, a comma or space can be used; a space must be used in
between a command and its value. All commands must be
followed by a carriage return.
Other notes:
·  All Commands must befollowed by a carriage return.
·For command strings, a maximum of 255 characters can be used in a single string.
·If it is necessary to input multiple commands, they should all be together in a single string. 
Inputting commands one at a time requires an arbitrary delay between commands while the 
commands are being executed. Therefore, programming requires delays and is more difficult. 
·For values not automatically stored (see next paragraph), the command !STORE must be 
sent in order for the VHD Ultra Controllerto keep the settings. Otherwise, the values will be 
considered temporary and will revert to their stored settings upon source change or power-up. 
·The Value stored column refers to a command that is either automatically stored or if it must
be manually stored with the !STORE command.
·PARAMETER min/max refers to a functions minimum and maximum value range. Inputting 
values above or below their range may cause unpredictable (but not fatal) results.
·  After each command is entered, the Controller returns the “>” symbol as a prompt
(ASCII code Ox). Use this symbol as an acknowledgement if your control system requires it.
6-19 
						

							COMMAND PARAMETER(min/max)Value stored? DESCRIPTION
ON NA NA Turns VHD Ultra Controller on
OFF NA NA Turns VHD Ultra Controller off
DISPLAY 0/4 YES Adjusts the brightness of the 
front panel display
COMPOSITE NA YES Selects the Composite
Video input 
SVIDEO NA YES Selects the S-Video Input
COMPONENT NA YES Selects the Component
Video input
PASSTHRU NA  YES Selects the Pass-through input
ANAMORPHIC NA YES Selects the anamorphic
aspect ratio
STANDARD NA YES Selects the standard (4:3)
aspect ratio
LETTERBOX NA YES Selects the letterbox aspect ratio
TINT -127/127 NO Sets a value for tint
COLOR -127/127 NO Sets a value for color
AGCCOLOR 0/1 NO 0=Disable Color AGC
1=Enable Color AGC
BRIGHTNESS -127/127 NO Sets a value for brightness
CONTRAST -127/127 NO Sets a value for contrast
AGCCONTRAST 0/1 NO 0=Disable Contrast AGC 
1=Enable Contrast AGC
SHARPNESS 0/255 NO Sets a value for sharpness
CHROMAHIGH 0/127 NO Sets a value for high-frequency 
chroma edge enhancement
CHROMALOW 0/127 NO Sets a value for low-frequency 
chroma edge enhancement
LUMAHIGH 0/127 NO Sets a value for high-frequency 
luminance edge enhancement
LUMALOW 0/127 NO Sets a value for low-frequency 
luminance edge enhancement
RS-232 COMMANDS
6-20 
						

							COMMAND PARAMETER(min/max)Value stored? DESCRIPTION
!STORE NA YES Stores the current set of values 
(all values) into non-volatile 
memory 
!RESTORE NA YES Restores the stored values
!FACTORY NA YES Restores all values to factory 
default levels
!STATUS NA NA Asks the VHD Ultra Controller to 
provide the hardware informa
tion, current values and system 
status to the automation system 
!RESTART NA NO Restarts the VHD Ultra 
Controller
!ECHO NA NO Enables the VHD Ultra Controller
to echo back commands and 
values to the automation system
!NOECHO NA NO Disables the VHD Ultra 
Controllers character echoing
!INSTALLMODEOFF NA NA Disables the Installation menu 
(removes it from the main menu)
!INSTALLMODEON NA NA Enables the Installation menu 
(enables it on the main menu)
6-21 
						

							Aspect Ratios:Anamorphic, Letterbox, 4:3 (on either 16:9 or 4:3 screens)
Input Standards:NTSC, PAL
Outputs:Native Resolution: 720P, 960P, 1024P and 1024P Anamorphic
HD Pass-Through: Up to 1080P
Inputs:(1) Composite, (1) S-Video, (1) Component, (1) Pass-through
Control Options:Infrared (with discrete on/off, aspect ratio and source selection), RS-232 and 
Front Panel
Screen Trigger/
Masking Outputs:(2) 12V DC, 1/8A
Bandwidth:Video Inputs: 5.5 Mhz, PAss-Through: 100 Mhz
Power Requirements:100-240V AC (auto sensing), 50/60 Hz, 15W
Operating Environment:41°-95°F (5°-35° C),  0-90% Humidity, (non-condensing)
Dimensions:Width: 17 1/2 in. (444.50 mm)
(w/out feet) Depth: 16 in. (406.40 mm)
Height: 3 1/2 in. (88.90 mm)
Weight: 16 lbs. (7.3 kg)
Included Accessories:Rack mounting brackets
Regulatory Approvals:Complies with FCC Class B, CE, C-tick
Limited Warranty:(2) Two years parts and labor from the date of delivery to the end user.
VHDULTRA SS
PECIFICATIONS
6-22 
						

							Appendix A
This appendix defines the specific terms used in this manual as they apply to this projector. Also included are
other general terms commonly used in the projection industry.
Active Line TimeThe time, inside one horizontal scan line, during which video is generated.
Ambient Light RejectionThe ability of a screen to reflect ambient light in a direction away from the line
of best viewing. Curved screens usually have good ambient light rejection. Flat
screens usually have less ambient light rejection.
Analog VideoThe video output of most computers and video tape machines. Analog video can
generate a large number of colors.
Aspect RatioThe ratio of the width of an image to its height, such as the 4:3 aspect ratio com-
mon in video output.
Auto SourceThe ability of the projector to automatically recognize and synchronize to the hor-
izontal and vertical scan frequencies of an input signal for proper display.
BandwidthThe frequency range of the projectors video amplifier.
Baud RateThe speed at which serial communications travel from their origin. In this projec-
tor, the RS-232 or RS-422 default baud rate of 38400 can be changed to match a
controlling device. 
Blanking TimeThe time inside one scan line during which video is not generated. The blanking
time of the input signal must be equal to or greater than the retrace time of the pro-
jector.
BrightnessIn projection, brightness usually describes the amount of light emitted from a sur-
face such as a screen. It is measured in foot-lamberts or candelas per square meter.
Candela or CandleUnit of measure for measuring intensity of light.
ChannelA collection of measurements stored by the projector for a given input source,
including frequencies, pulse width, polarity, syncs, channel number and location,
user-adjustable display settings, etc. Use channels to switch between a variety of
setups quickly, automatically recalling previously defined display parameters.
Channel ListA list/menu of previously-defined channels available in projector memory.
Channel NumberA number that uniquely identifies a specific channel retained in projector memo-
ry. The projector can retain up to 99 channels.
Glossary
A-1