KaVo EDUnet ULTRA HD Instructions For Use Manual page 46

Instructions for use KaVo EDUnet ULTRA HD
9 Troubleshooting
Malfunction
Teacher screen cannot be
sent "To all". From a cer-
tain place within the ring
system, all participant
screens go dark.
Teacher screen cannot be
sent "To all". All participant
screens with the exception
of the teacher screen go
dark.
Cause
The "BUS in" and "BUS
out" connectors on the par-
ticipant box of the last par-
ticipant PC displaying the
sender screen to the first
participant PC with dark
monitor are interchanged
or participant box or patch
cable are defective.
Wiring from the teacher PC
to the first participant PC is
interchanged or participant
box or patch cable is de-
fective.
Remedy
▶ Send participant screen "To all".
ð
The sender screen is displayed on at least one
other participant screen.
▶ Use installation plan to identify the pertinent parti-
cipant boxes.
ð
The participant work-stations to which the sender
screen is not transmitted are all situated in se-
quence.
▶ Check the "BUS in" and "BUS out" connectors.
ð
If the connection if active, the LED of the "BUS in"
connector is on.
ð
If the connectors of a participant box have been in-
terchanged, there must be at least one other parti-
cipant box whose connectors have also been inter-
changed.
▶ If all connectors are plugged-in correctly, replace
participant box or patch cable.
▶ If the connectors have been interchanged, check
all participant boxes and switch connectors as
needed.
▶ Check the "BUS in" and "BUS out" connectors.
ð
If the connection if active, the LED of the "BUS in"
connector is on.
ð
If the connectors of a participant box have been in-
terchanged, there must be at least one other parti-
cipant box whose connectors have also been inter-
changed.
▶ If all connectors are plugged-in correctly, replace
participant box or patch cable.
▶ If the connectors have been interchanged, check
all participant boxes and switch connectors as
needed.
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