Led Messages - Yamaha MY8-mLAN Owner's Manual

LED Messages

LED messages
Indicates the status of the mLAN (IEEE
mLAN1, 2
1394) jack.
RT/ERR Indicates "root" node and error.
Indicates the status of the relay function
ACTIVE
between mLAN (IEEE 1394) jacks.
Error messages
mLAN*
RT
2 1
red orange
red orange
red red orange
green orange The number of hops exceeds 16.
green orange The power to the bus is insufficient.
red red
red red
red
* If the RT/ERR LED is lit green or is dark, these LEDs indicate the status of the mLAN (IEEE 1394) jacks.
Function
Cause
The topology of the connected devices
creates a loop.
Cycle Start Packet is not transmitted to
the bus. (Audio/MIDI data cannot be
transmitted.)
A malfunctioning device exists on the
bus.
MIDI IN transfer rate is not correct.
Data transmission exceeds the MIDI
transfer rate.
The sound is interrupted for some rea-
son, or the devices are not syncing.
Status
Red ..... Disconnecting the connection will
interrupt the sound on the bus
(system).
Green... The connection is a "leaf" node.
Red/Orange ... An error has occurred.
Green ...
The MY8-mLAN is a "root"
node.
Blue ... The relay function is enabled.
Action
Check to see if any part of the connection
creates a loop.
Remove the malfunctioning device.
Remove the malfunctioning device.
Check the number of hops.
Add a power provider to the bus, or
remove a power consumer from the
bus.
Check the MIDI transfer rate setting.
Check to see if the transmitting device
is operating properly.
Check the word clock setting.
13