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Yamaha mLAN Manual Book
Also see for mLAN Driver: Owner's manualUser guideTutorialOwner's manualOwner's manual
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Contents
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Notes regarding the current version• If using 4.5 m cables to make connections, no special knowledge is required when connecting up to 16devices. However for larger systems, further understanding of connections is required, such as how connec-tions can be branched.• At present, it is not possible to create systems of 64 or more devices. In the near future, it will be possible touse devices called “bridges” to expand this to 63 x 1023 devices. However in this case as well, a certainamount of knowledge will be required.• In the current version, even if 63 or fewer nodes are connected, there is no limitation regarding reception ofrealtime data such as audio and MIDI. However, the number of nodes that can transmit data is limited toapproximately five devices.There is no limitation on the number of nodes that can transmit non-realtime data such as file transfers byIEEE 1394 devices. (The current version of mLAN does not support file transfer for mLAN devices.)TroubleshootingThe following table provides troubleshooting hints for some common problems. Before calling for professionalservice, refer to the troubleshooting advice below to see if you can find and correct the cause of the problem.Bus does not start up• A loop connection may have been created. Check thecable connections.Node is not displayed• The power of an intervening node may be off, or a cablemay be disconnected. If two or more CD8-mLAN cardsare installed in an 02R, connections are also requiredbetween these cards.• PC card hot plugging on the PowerBook is not supported.If you insert a new PC card, you must restart the system. Ifthere are multiple 1394 adapters, you must specify theadapter.mLAN plug is not displayed• The reception plug (input plug) of a Macintosh is not visi-ble from other nodes. Make connection settings on theMacintosh.• For Direct mode on the CS6x/CS6R/S80, there is noreception plug (input plug).Connection cannot be made• A connection may have already been specified for thereceiving device plug.• The bus traffic may be approaching 100%.Connection cannot be restored• The connection may have been overwritten. Or, you havemay performed Factory Set or mLAN Initialize. Theseoperations will initialize the connection.• The bus traffic may be approaching 100%.• You may have switched devices. The connection will notbe restored if you switch to a different hardware unit,even if the model is identical.No sound• Is a word clock being supplied? Does a word clock masternode exist (if the word clock source is “ext.”).• Is the Digital In of the mLAN8P connected? Is the Optical/Coaxial setting correct?• Has mixer muting (channel off) been defeated on themLAN8P/mLAN8E?• The mLAN signals that can be received simultaneously byone Macintosh are limited to the signals transmitted froma single mLAN device. It is not possible to receive a totalof two or more channels transmitted from multiple mLANdevices. Multiple channels transmitted from a singlemLAN device can be received simultaneously. Even if OMSsettings for multiple ports have been made, reception islimited to signals transmitted from a single mLAN device.Can’t operate the panel• The mLAN Mixer may be connected. It is not possible tooperate the mLAN Mixer and the panel simultaneously.Can’t receive/transmit MIDI• In order to receive/transmit MIDI on the 03D, rear panelcable connections (TO HOST cable) and DIP switch set-tings are required.• On the A4000/A5000 or CS6x/CS6R/S80, you mustswitch between the conventional MIDI connectors andthe mLAN MIDI.• The mLAN signals that can be received simultaneously byone Macintosh are limited to the signals transmitted froma single mLAN device. Even if OMS settings for multipleports have been made, reception is limited to signalstransmitted from a single mLAN device.Sound is interrupted• The cable may have been disconnected from a portwhose LED is lit red, or the power of that device may havebeen turned off.• A bus to which multiple devices are connected may havebeen joined.• The bus may contain a node with a device of an older for-mat (IEEE 1394 - 1995), such as an older DVCam.• On the Macintosh, numerous applications may be run-ning, or you may be attempting to transmit numerouschannels of audio. The sound may be interrupted if aheavy processing load is being placed on the Macintosh.Something is wrong with the sound• Is the word clock setting correct? If the word clock is notsynchronized correctly, the audio quality may be affected.Also, the A4000/A5000 and CS6x/CS6R/S80 support only44.1 kHz.Macintosh does not synchronize with other devices• The Macintosh cannot be the slave of other devices.Sound is heard when you disconnect a cable• A “blip” sound may be heard from a device receivingmLAN audio when you disconnect the cable from thedevice that is transmitting that signal. If this occurs, eitherpause transmission/reception or lower the volume beforedisconnecting the cable. |
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