Runco Q-750D operation manual 5.Folded Optics, Audio/Video, Synchronization Issues

Installation

Folded Optics ➤ In rear screen applications where space behind the projector is limited, a mirror may be used to fold the optical path, as shown in Figure 3-5.The position of the projector and mirror must be accurately set. If you are considering this type of installation, contact your dealer for assistance.

Screen

Mirror

	Figure 3-5. Folded Optics
Audio/Video ➤	Due to its extraordinarily high level of video processing performance, the DHD Controller
Synchronization Issues	may distribute video signals with a perceptible level of audio latency. In order to easily
	solve this issue, Runco recommends using the DHD Controller with a high-quality audio
	receiver that has the ability to effectively synchronize audio and video signals.
	Most mainstream audio receiver/switchers have the ability to synchronize the audio and
	video to the Advanced Television Systems Committee (ATSC) prescribed tolerances.
	According to the ATSC, the sound program should never lead the video program by more
	than 15 milliseconds, and should never lag behind the video program by more than 45
	milliseconds.
	In addition, many video displays and A/V receivers introduce additional latency that needs
	to be compensated for during the installation. Table 3-4shows the amount of possible
	audio latency given different signal input timings.
	Table 3-4. Possible Audio Latency for Various Input Timings
	Input Timing	Possible Audio Latency (milliseconds)
	480i	133
	480p	83
	576i	160
	576p	100
	720p/50	100
	720p/60	83
	1080i/25	160
	1080i/30	133
	1080p/24	125
	1080p/50	80
	1080p/60	67

20 Q-750d Series Installation/Operation Manual