Yamaha M7CL M7cl V3 Owner's Manual - Page 231
To close the WORD CLOCK/SLOT SETUP, In the MASTER CLOCK SELECT field
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Word Clock and Slot settings B Slot number / Card type This area shows the type of digital I/O card installed in slots 1-3. C CHANNEL This area shows the channel numbers of the digital I/O card(s) installed in slots 1-3. D FREQUENCY (Clock frequency) This indicates the clock frequency of the signal being input to each channel of the digital I/O card, in sets of two channels. E SRC (Sampling Rate Converter) These buttons are on/off switches (in two groups of two channels) for the sampling rate converters that automatically convert an external clock frequency to match the M7CL. This is available only for slots in which a digital I/O card with a built-in sampling rate converter is installed. F EMPHASIS STATUS This indicates whether emphasis is applied to the input signal, in sets of two channels. This item is only for display, and cannot be edited. This is available only for slots in which a digital I/O card is installed. 3 In the MASTER CLOCK SELECT field, select the desired clock source. You can choose one of the following clock sources. ● INT 48 k ● INT 44.1 k The M7CL's internal clock (sampling rate 48 kHz or 44.1 kHz, respectively) will be the clock source. Choose one of these if you want to use the M7CL as the word clock master. ● WORD CLOCK IN The word clock supplied from the rear panel WORD CLOCK IN jack will be used as the clock source. In this case, the M7CL will operate as a word clock slave. ● EtherSound(M7CL-48ES) The word clock supplied from the EtherSound connector will be used as the clock source. In this case, the M7CL will operate as a word clock slave. If the AUTO CONFIGURE button is turned on in the ring connection, the EtherSound clock source will be automatically selected. NOTE • Select EtherSound if the AUTO CONFIGURE button is turned off under one of the following circumstances: • The devices are connected in a ring connection. • The M7CL-48ES is inside a daisy chain. ● SLOT 1-3 The clock data of the digital audio signal supplied via a digital I/O card in slot 1-3 (selectable in twochannel units) will be used as the clock source. In this case, the M7CL will operate as a word clock slave. The status (operating state) of the clock data being received from each port is indicated by the color of the symbol displayed immediately above. Each color has the following significance. ● LOCK (light blue) This indicates that a clock synchronized with the selected source is being input. If an external device is connected to the corresponding connector or slot, input/output is occurring normally between that device and the M7CL. If the sampling frequency is close, this status may be displayed even if not synchronized. ● LOCK, BUT NOT SYNC'ED (yellow) A valid clock is being input, but is not synchronized with the selected clock source. If an external device is connected to the corresponding connector, input/ output cannot occur correctly between that device and the M7CL. ● SRC ON (green) This is a special status only for SLOT 1-3, indicating that the corresponding channel's SRC (Sampling Rate Converter) is enabled. This means that even if the signal is not synchronized, normal input/ output with the M7CL is occurring. ● UNLOCK (red) A valid clock is not being input. If an external device is connected to the corresponding connector, input/output cannot occur correctly between that device and the M7CL. ● UNKNOWN (black) This indicates that the clock status cannot be detected because no external device is connected or because there is no valid clock input. You will be able to select this connector/slot, but successful synchronization cannot occur until a valid connection is established. If the symbol for the port selected in step 3 has turned light blue, and the clock frequency is shown at the upper left of the MASTER CLOCK SELECT field, this indicates that the M7CL is operating correctly with the new clock. HINT • If you use a digital I/O card that contains a sampling rate converter (MY8-AE96S), input and output can occur normally with the M7CL even when unsynchronized. In this case, turn on the SRC button for the slot/channel that is receiving the signal. NOTE • If the symbol for the selected clock does not turn light blue, make sure that the external device is correctly connected, and that the external device is set to transmit clock data. • Noise may occur at the output jacks when the word clock setting is changed. In order to protect your speaker system, be sure to turn down the power amp volume before changing the word clock setting. • If you attempt to select a channel whose SRC is on as the word clock source, a message will appear, warning you that the sampling rate converter will be disabled. 20 Other functions 4 To close the WORD CLOCK/SLOT SETUP popup window, press the "×" symbol located in the upper right. You will return to the SETUP screen. 5 To close the SETUP screen, press the SETUP button in the function access area. M7CL Owner's Manual 231