Panasonic Ramsa Audio Mixer Wr Da7 Application Guide

The meter bridge shown in photo is one of the optional accessories.
Application Guide
Audio Mixer
WR-DA7 

Limit of Liability/Disclaimer of Warranty:The author, Audio Video Systems Division of
Matsushita Communication Industrial Co., Ltd has used its best efforts in preparing this book.
However, Audio/Video Systems Division of Matsushita Communication Industrial Co., Ltd makes
no representation or warranties with respect to the accuracy or completeness of the contents of
this book and hereby specifically disclaims any implied warranties or merchantability or fitness for
any particular purpose and shall in no...

Table of Contents
1. Introduction 5
2. Notes for connections with peripheral equipment 7
2.1 Wordclock 7
2.2 Installing and using option cards with the WR-DA7 7
2.3 ADAT, BRC 9
2.4 DA-98, 88, 38 11
2.5 DAT (with AES/EBU or S/PDIF I/O) 13
2.6 Digital timepiece 13
3. WR-DA7 system applications 15
3.1 Example of systems for ADAT(1unit)
(When a timecode is recorded on the tapetrack) 15
3.2 Example of systems for ADAT (3units) and BRC 17
3.3 Example of systems with Two WR-DA7 in tandem 
with 4 ADATs and BRC...

1. Introduction
This Application Guide supplies examples for interfacing the WR-DA7 with commonly used
periperal recording equipment. This guideÕs diagrams provide the necessary connections and
the methods for establishing proper system operation.
5
VIDEO IN
WORD SYNC OUT
(BNC)  SMPTE
Timecode
MIDI
  INMTC MIDI IN
MMC MIDI OUT
MIDI
  OUT TIMECODE
            INDA-98 ID1
3.9 System configuration
House Video Sync
WCK MASTER
WR-TDIFTDIF-1 TDIF-1
PW-88DL
(BNC) WORD CLOCK IN
        (75½=ON)
W
REC O VIDEO...

2. Notes for connections 
with peripheral equipment
2.1 Wordclock
The WR-DA7 as wordclock master
The DA7 has an internal wordclock generator that provides a timing reference for the external
(digital) audio devices connected to it. This is neither MIDI nor SMPTE timecode. You can set the
internal generator to synchronize to either 44.1 or 48K, selectable from The [D-I/O>INPUT SET]
window.
When multiple digital audio devices are used, it becomes necessary to synchronize the audio sig-
nals with a single...

WR-AESS: Select the switch on the card, according to the digital audio formats
(AES/EBU, S/PDIF) of the unit being connected. It is possible to select settings for each
pair of channels 1/2, 3/4, 5/6, and 7/8.
This switch is used for switching the electrical signal not for format
change. 
WR-TNDM: The Tandem card is for use in Slot 3 (only) of both mixers. 
WR-SMPT SMPTE Card, carefully follow the steps to install the WR-SMPT according to
the instructions in the ownerÕs manual.
Wordclock 
For proper...

Tandem connection
Make all connections with the mixers turned OFF. You will need the following cables and cards:
(2) WR-TNDM cards, (1) Tandem cable (part # DA/DB-DB: Available in the  USA), (1) MINI DIN 8-
Pin Serial cable (Macintosh Printer Cable), or (2) MIDI cable, (1) 75 ohm BNC-BNC wordclock
cable (part # DA/BNC: Available in the USA). Set up the consoles as master and slave and make the
tandem connections for the mixers accordingly. 
MASTER: When used with the tandem master unit. 
SLAVE: When used...

optical cables. Install the card (with the mixer turned OFF) and screw the option card securely
into place to ensure proper grounding. To use the ADATÕs DIGITAL INPUT press the DIGITAL IN
button on the ADAT to display DIGITAL IN. (Do notswitch the DIGITAL I/O button on the BRC to
ON, this is for transferring data between ADATs and may cause unsuspected results.)
To select the ADATÕs wordclock source press the SET LOCATE and DIGITAL IN simultaneously, the
ADAT will display ÔintÕ for internal word clock or...

Timecode 
To generate MTC from the BRC, press the EDIT switch and then press the GEN SYNC switch until
the MIDI screen appears. Select MTC, and turn the GEN SYNC switch to ON. 
To generate SMPTE timecode from the BRC, press the EDIT switch and then press the GEN SYNC
switch until the SMPTE screen is displayed. Set to -10dB and turn the GEN SYNC switch to ON. 
To generate timecode from the BRC when the ADAT is in FF/REW operation, press the MIDI/UTIL
switch on the front panel of the BRC until #8 is...

12
When the DA-98 or 38 is the wordclock master, the slot where the WR-TDIF card is inserted can be
selected as the wordclock source, in addition to the above-mentioned WCK IN. For WR-DA7 word-
clock setting, press the D-I/O switch several times to display the INPUT SET screen of the D-I/O
window. Then, select the SOURCE SELECT to the SLOT where the WR-TDIF card is installed. 
The sampling rate settings for the DA-98, 88, 38 is dependent on the format of the tape being
used. Therefore, the sampling rate...