Runco QuantumColor CineWide with AutoScope Q-1500d, Installation & Operation Manual, Page: 115 / 148

Maintenance and Troubleshooting
Q-1500d Series Installation/Operation Manual 99
PRE
L
IMINAR
Y
RGB-HD or Component HD
images appear “noisy” or drop
out intermittently. • Tracking and Phase
settings need adjustment.
• The DHD Controller is
having difficulty detecting
sync pulses from the
source.
• Adjust Tracking and Phase
settings (refer to Input
Position on page 74).
• Adjust the Sync Threshold
setting (refer to Sync
Threshold on page 93).
Computer images do not dis-
play correctly. • The resolution and
frequency of the video card
in the computer are not
compatible with the
Q-1500d.
• Select a compatible
resolution and vertical
frequency (refer to
Supported Timings on
page 128).
Images from an HDMI source
do not display. • The resolution and
frequency of the video card
in the computer are not
compatible with the
Q-1500d.
• EDID compatibility issue.
• HDMI cable from source to
Brightness Acceleration
Engine is either defective or
too long.
• Select a compatible
resolution and vertical
frequency (refer to
Supported Timings on
page 128).
• Set HDMI EDID Extension
to “Off” (refer to HDMI
EDID Extension on
page 93).
• Try a known-good and/or
shorter HDMI cable.
Video from an HDMI source
lags behind audio. • Refer to Audio/Video
Synchronization Issues
on page 29.
• Use an external A/V
receiver with audio delay
capability to synchronize
the audio signal with the
video signal.
The image is too large or too
small. • Image size needs adjusting. • Adjust the image size (refer
to Input Position on
page 74).
AutoScope lens motor doesn’t
work. • The motor is not plugged in
or the AC outlet is not
active.
• The motor is not connected
to the trigger output on the
projector.
• Ensure that the motor is
plugged in and that the AC
outlet is active.
• Check the trigger
connection between the
lens motor and projector
(Figure 3-8).
Table 5-1. Trouble s hooting Chart (continued)
S ymptom Po ss ible Cau s e( s ) S olution