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Overall Functional Description
The VX-5000ci system consists of the DHD Controller and the VX-5000ci Projector. This system is
unique in the way it is controlled; the control center for this system is located within the DHD Controller.
The DHD Controller tells the Projector to turn on or off, controls its brightness, contrast, color tempera-
ture and more. All of this is accomplished by Runco's unique ComLink, which is the transfer of informa-
tion between the DHD Controller and the Projector via their ComLink ports on a CAT5 cable (or similar)
with RJ-11 ends. Therefore, only the DHD Controller's remote control is necessary to control all aspects
of this system.
Besides being the system's control center, the DHD Controller is also a high-quality scaler, which
outputs all signals in the native resolution of the VX-5000ci Projector. The Composite, S-Video and
Component (non-progressive) signals are sent through the DHD Controller's 10-bit decoder, de-inter-
laced, then scaled to the native resolution of the Projector. In the case of HDTV or progressive DVD sig-
nals, these are input to the RGB/Component port.
In the next chapter, the menu system will be described in detail. There are many adjustments
available to perfect the VX-5000ci's image, including typical 'front-panel controls' as well as color
temperature and other image-quality controls.