Runco Vx 5c Projector User Manual

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...

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...

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...

Inputs:(1) Composite, (1) S-video, (1) Component, (1) Pass-through
Input standards:NTSC, PAL
Resolution:1280 x 1024 (1280 x 720 on 16:9 screens)
Bandwidth:Composite, S-Video and Component inputs: 5.5 MHz, Pass-through: 100 MHz
Power Requirements:100-120 VAC, 50/60 Hz (200-240VAC, 50/60 Hz, export version)
Power Consumption:15W
Control Options:RS-232, IR, Front Panel
Operating Environment:41°-95°F (5°-35° C),  0-90% humidity, Non-condensing
Dimensions:Width: 17.45 in./443.23 mm
Depth: 16 in./406.40 mm...

A-1
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...

A-2
GLOSSARY
CheckboxA menu item that indicates whether an option is currently in effect (checked) or
not (unchecked).
Color ShiftA change in the color of a white field across an image (white field uniformity).
Color TemperatureThe coloration (reddish, white, bluish, greenish, etc.) of white in an image,
measured using the Kelvin (degrees K) temperature scale. Higher temperatures
appear bluer, while lower color temperatures appear redder.
Component VideoSee YCbCr or YPbPr.
Composite VideoThe output...

A-3
GLOSSARY
a 10 gain screen appears 10 times brighter than it would if reflected off a matte
white wall. Curved screens usually have larger gain than flat screens.
Help ScreenA display of help information regarding the current task or presentation.
Horizontal FrequencyThe frequency at which scan lines are generated, which varies amongst sources.
Also called horizontal scan rate or line rate.
Horizontal OffsetThe difference between the center of the projected image and the center of the
projector...

A-4
GLOSSARY
MenuA list of selectable options displayed on the screen.
NTSC VideoA video output format of some video tape and disk players. There are two types
of NTSC (National Television Standards Committee) video: NTSC 3.58 and
NTSC 4.43. NTSC 3.58 is used primarily in North America and Japan. NTSC
4.43 is less commonly used.
Optical ScreenA type of rear-projection screen which re-directs light through the screen to
increase image brightness in front of the screen. Screen gain is usually greater...

A-5
GLOSSARY
RGB Video!The video output (analog or digital) of most computers. Analog RGB video can have 3,
4, or 5 wires - one each for red, green, and blue, and either none, one or two for sync.
For three-wire RGB, the green wire usually provides sync. (See TTL Video).
RS-232!A common asynchronous data transmission standard recommended by the Electronics
Industries Association (EIA). Also called serial communication.
RS-422!A less common asynchronous data transmission standard in which balanced...

A-6
GLOSSARY
Throw Distance!The distance between the front feet of the projector and the screen. Also called
Projector-to-Screen Distance. Always use the correct throw distance formula to calcu-
late the proper throw distance (±5%) required for your lens.
Tint!Balance of red-to-green necessary for realistic representation of NTSC signals.
Variable Scan!The ability of a projector to synchronize to inputs with frequencies within a specified
range.
Vertical Frequency!The frequency at which images are...