3.4 Example of systems with 3 DA-88s
This is a 24-track digital recording system that uses three DA-88’s. The DA-88 can generate SMPTE timecode and MTC by using the optional SY-88 SYNC card installed into the DA-88. By using the MIDI connections between the WR-DA7 and the DA-88, it is possible to perform MMC (MIDI Machine Control) from the WR-DA7.
Method of connection
With the DA7 powered OFF insert the WR-TDIF (option card) in Slot 1, 2, 3 of the WR-DA7 and firmly fasten them to the console with the supplied screws. Using the dip switches on the WR-TDIF card make the proper setting for the DA-88 (SW1, 2 to OFF, OFF respectively).
Connect the WR-TDIF card of the WR-DA7 to the DIGITAL I/O (TDIF-1) of the DA-88 using cable (PW-88 DL) and press the DIGITAL IN switch of each DA-88 to select the digital input mode.
Connect each DA-88 with the PW-88S SYNC cables in the sequential order from SYNC OUT to SYNC IN. Connect the terminator to the SYNC OUT terminal of the DA-88.
To use the DA-88 as the wordclock master, connect the WORD SYNC OUT of the DA-88 to WORD CLOCK IN of the WR-DA7 using a BNC-BNC cable (Part # DA-BNC: Available in the USA) and select the WR-DA7 termination at 75 ohm to ON.
For MIDI connections, connect the WR-DA7 to MIDI IN/OUT of the SY-88 using a MIDI cable. It is possible to use the MMC and MTC functions.
For the timecode, MTC is received from the MIDI connection. (Using the option card WR-SMPT, it is possible to receive the SMPTE timecode. In this example, the TIME CODE OUT (RCA Pin Jack) of the DA-88 is connected to the SMPTE IN (XLR: 1,3-GND, 2-SIGNAL) of the WR-DA7.)
WR-DA7 setting
The DA-88 functions as the wordclock master and the WR-DA7 as a slave unit. In the INPUT SET window of the D-I/O area on the top panel of the WR-DA7 set the SOURCE SELECT to ‘WCK IN’
(In the case of DA-98, 38 connections, synchronization with the SLOT and V-SYNC is also possi- ble.)
In regards to the MIDI channel of MMC set the MMC PORT to ‘MIDI’ in the MIDI SETUP screen and make the proper MIDI channel settings.
To receive MTC Timecode, set the MTC PORT to ‘MIDI’ in the MIDI SETUP screen.
To display the MTC timecode on the LCD display, set the TIME BASE to ‘MTC’ in the EXECUTE screen of AUTOMATION window.
(To use the SMPTE timecode by connecting the optional WR-SMPTE card, and set the TIME BASE to ‘SMPTE.’)
