Troubleshooting - IDK HDC-UHD Series User Manual

10 Troubleshooting

This chapter provides recommendations in case difficulties are encountered during HDC setup and
operation.
In case the HDC does not work correctly, please check the following items first.
・ Are the HDC and all devices connected to power and indicating "powered on"?
・ Are signal cables connected correctly?
・ Are there any loose or partially mated connections?
・ Are the interconnecting cables specified correctly to support adequate bandwidth?
・ For 4K format, is an 18 Gbps high-speed cable used?
・ Are specifications of connected devices matched to each other?
・ Are configuration settings for the connected devices correct?
・ Is there any nearby equipment that may cause electrical noise/RF interference?
If the problem persists, review the following section for guidelines and recommendations. Refer to the
manuals of connected devices as well, since they may possibly be the cause of the problem.
Problem
● Video output
Video is not being
output.
Cause/Check item/Solution
[1] Is the EDID resolution setting of this device set to the input
resolution supported by the sink device?
・ EDID resolution is set to 2160p 4:2:0 by factory default.
Some TVs does not support the resolution.
・ If the EDID resolution is set to 1080i, the video may not be
output to the sink device that does not support the
interlaced signals.
・ PC output resolutions (VGA to WQXGA) may not be output
to LCD TVs and plasma TVs.
[2] Does the [SIGNAL IN1] or [SIGNAL IN2] light?
Yes : Check [3] to [8].
No : Check [9] to [11].
[3] Check the presence of HDCP?
1.4 : Signal protected by HDCP 1.4.
2.2 : Signal protected by HDCP 2.2.
oFF : The signal is not protected.
[4] Does the sink device support HDCP?
If it does not match the result of [3], video is not displayed.
Check the every sink device connector.
[oFF] or [- - -]: Sink device's resolution may not be supported.
Check the specification of the sink device.
Some HDMI/DVI devices check if the connected device is
HDCP compliant and determines whether to output HDCP
signal or not. Since the HDC is HDCP compliant, the HDC
may not output video if connected to a sink device that does
not support HDCP. In such a case, disable the HDCP input
from the source device.
HDC-UHD Series User Guide
58 [ F10 ]
89 [ L03 ]
93 [ L90 ]
73 [ C01 ]
Page
32
109