66
Symptom
Cause/Solution
Page
Initialization operation does not end
(LEDs continue flashing).
Check the installation locations of the IRDUs and IRAs.
-
There may be a limit on the number of IRDUs that are detected at system start.
Check the infrared setting again.
[Settings & Maintenance] → [System Settings] → [Infrared]
If this is the case, connection is possible by operating any button on the IRDU.
The (talk) button does not function.
Depending on the conference mode or settings, the (talk) button may not
function. Check the conference mode settings.
To check from Web Remote:
[Settings & Maintenance] → [Install Settings] → [Conference] → [Conference Mode]
To check on the CU display:
Set
→ Log in as
Administrator
or
Operator
→
Conference Mode
The sound from the connected
microphone is distorted or cannot be
heard.
Check the installation locations of the IRDUs and IRAs.
-
Check the ID settings of the device.
There may be interference with the infrared. The problem may be solved by the
settings for the infrared frequency that you are using.
[Settings & Maintenance] → [System Settings] → [Infrared] → [IRDU Band]
No sound is output from the
headphone jack.
Insert the headphone plug securely all the way in.
Raise the volume with the + button on the IRDU.
Use the monitor channel selection button(s) to confirm that you can monitor speech
from the channel you want.
No sound is output from the built-in
speaker.
From [Settings & Maintenance] → [Install Settings] → [DU/IU] → [DU/IU Detail
Settings], check that the [Speaker] setting is set to [Enabled].
Adjust the speaker level.
To check from Web Remote:
[Settings & Maintenance] → [Install Settings] → [DU/IU] → [Global DU/IU Settings]
→ [Speaker Level]
To check on the CU display:
Set
→ Log in as
Administrator
or
Operator
→
Audio Setting
→
DU SP Output Lvl
ATUC‑IRA
Symptom
Cause/Solution
Page
Cannot turn on the power to ATUC-
IRA.
Check the connections of the cables.
Check that the cables are not damaged.