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 
						

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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 event be liable for any loss of profit or any other commer-
cial damage, including but not limited to special, incidental, consequential, or other damages.
TRADEMARKS
Audio Video Systems Division of Matsushita Communication Industrial Co., Ltd has made every
effort to supply trademark information about company names, products, and services mentioned
in this document. Trademarks indicated below were derived from various sources. All products or
services not listed below are the trademarks, service marks, registered trademarks or registered
service marks of the respective owners.
ADAT is a registered trademark of Alesis Corporation
TDIF is copyrighted by TEAC Corporation and TASCAM is a registered trademark of TEAC
Corporation
IBM is a registered trademark of International Business Machines Corporation
Mac is a registered trademark of Apple Computer, Inc.
Mark of the Unicorn is a trademark of Mark of the Unicorn, Inc.
2 
						

							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 20
3.4 Example of systems with 3 DA-88s 24
3.5 Example of systems for WR-DA7 tandem connections 
with DA-98(1unit) and DA-38(3units) 27
3.6 Example of systems for analog 16-track recorder(1unit) 30
3.7 Example of systems for Digtal Video Recorder (1unit) 32
3.8 Example of systems for VTR (1unit), ADAT (1unit),
and BRC 34
3.9 Example of systems for VTR (1unit) and DA-98 (1unit) 37
3 
						

							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
OUT
VTR
TV
Monitor
WCK MASTER
WR-ADAT
ADATID1
ADATID2 BRC
WR-DA7
DIGITAL
OUT INMIDI
  INMMC
MIDI
  OUT
WCK OUT
(48kHz OUT) REMOTE OUT
TO ADAT
Sync
CableWORD CLOCK IN
        (75½=OFF)
ININ
OUT
Optical Cable
WR-ADATDIGITAL
OUT IN SYNC OUT
Sync
Cable
ININ
OUT
Optical Cable
WR-TANDM
SYNC OUTSLOT 1
(17-24ch)
(MASTER) (MASTER)
(SLAVE)SLOT 2
(25-32ch)
SLOT 3
INPUT 1-16WORD CLO
COUT (75½=OTo PC
WORD CLOCIN (75½=ON)To PC
MIDI
  IN MIDI
  OUT
MIDI
  OUT MIDI
  IN
WR-SMPT(XLR) (BNC)
WR-ADAT
ADATID3
WR-DA7
DIGITAL
OUT IN Sync
Cable
ININ
OUT
Optical Cable
WR-ADAT
ADAT ID4
DIGITAL
OUT IN SYNC OUT
Sync
Cable
ININ
OUT
Optical CableSLOT 1
(17-24ch)
(SLAVE)
SLOT 2
(25-32ch)SLOT 3
INPUT 1-16
WR-TANDM
R
SR
Mic
Sampler
Keyboard
R
SR
Mic
Sampler
Keyboard SP
CR MONITORAES/EBU
SP
Power
AMP
REC
OUT2TR
A INAUX
SENDAUX
RTN
DAT
EffectorAB
MONITOR
BWCK MASTER
WR-ADAT
ADAT ADATID1 BRC
WR-DA7
DIGITAL
OUT INMIDI
  INMTC
MMC
MIDI
  OUT
WCK OUT
(48kHz OUT) REMOTE OUT TO ADATync CableWORD CLOCK IN
        (75½=ON)
ININ
OUT
Optical Cable
WR-ADAT
ID2
DIGITAL
OUT IN SYNC OUTync Cable
ININ
OUT
Optical Cable
WR-ADAT
ADATID3
DIGITAL
OUT IN SYNC OUTync Cable
ININ
OUT
Optical CableSLOT 1
(17-24ch)SLOT 2
(25-32ch)
WR-ADATSLOT 3
(9-16ch)
INPUT 1-8
MIDI
  IN MIDI
  OUT
R
SR
Mic
Sampler
Keyboard
SP
CR MONITORAES/EBU
SP
Power
AMP
REC
OUT2TR
A INAUX
SENDAUX
RTN
DAT
EffectorAB
MONITOR
B
WCK MASTER
WR-ADAT
ADATDIGITAL
OUT
TRACK8
ANALOG OUT
(RCA)ININ
OUT
Optical Cable
WR-SMPTSMPTE INSLOT 1
(17-24ch)
(XLR)
SP
CR MONITORAES/EBU
SP
Power
AMP
REC
OUT2TR
A INAUX
SENDAUX
RTN
INPUT 1-16
DAT
3.1 System configuration
WR-DA7
MicEffector
Sampler
Keyboard
AB
R
SR
MONITOR
B
WR-DA7
MIDI
  INMMCMTC
MIDI
  OUT
WR-TANDM
SYNC OUTSLOT 1
(17-24ch)
(MASTER) (MASTER)
(SLAVE)SLOT 2
(25-32ch)
SLOT 3
INPUT 1-16WORD CLOCK
OUT (75½=OFF)
To PC
WORD CLOCK IN
 (75½=ON)
To PC
MIDI
  IN MIDI
  OUT
MIDI
  OUT MIDI
  IN
WR-DA7
IN
SLOT 1
(17-24ch)
(SLAVE) SLOT 2
(25-32ch)SLOT 3
INPUT 1-16
WR-TANDM
WCK MASTER
WR-TDIF
DA-98 ID1
TDIF-1 TDIF-1 WORD SYNC OUT
(BNC)(BNC) WORD CLOCK IN
          (75½=OFF)
PW-88DL
WR-TDIF
DA-38 ID2
TDIF-1 TDIF-1
PW-88DLIN SYNC OUT
PW-88S
PW-88S
WR-TDIFTDIF-1 TDIF-1
PW-88DL
WR-TDIFTDIF-1 TDIF-1
PW-88DLIN SYNC OUT
PW-88S
Terminator
R
SR
Mic
Sampler
Keyboard
R
SR
MicSampler
Keyboard
DA-98 ID3
DA-38 ID4 DA-38 ID3
SP
CR MONITORAES/EBU
SP
Power
AMP
REC
OUT2TR
A INAUX
SENDAUX
RTN
DAT
EffectorAB
DA-98 ID3
MONITOR
B 
						

							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 reference timing signal or master wordclock source. In a system where all of the
digital audio devices share a common wordclock it is essential that all of the devices be turned on
even if they are not being used.
The WR-DA7 as wordclock slave
The DA7 can be slaved to an external wordclock source, to accomplish this you must go to the [D-
I/O>INPUT SET] window. Here you can choose Wordclock In [WCK IN], Video Sync In [V SYNC],
2 track A input [2TR IN A] and Slot 1,2 or 3.
For example: it is possible to select the WR-AESS card as the wordclock source of the WR-DA7. 
The DA7 can be synchronized with the digital audio signals being input on Channels 1/2 of the
WR-AESS card. However, when no input is present on Channels 1/2 an UNLOCK status will be dis-
played. The wordclock synchronization with the other channels will not be realized either.
If the word clock is set incorrectly (for example, a system where multiple equipment units are set
as the wordclock master), noise (usually in the form of clicks and pops) may become audible. It is,
therefore, necessary that all of the slave units be synchronized with the wordclock master unit. 
2.2 Installing and using option cards with the WR-DA7:
Be sure to install all of the Option Cards with the power of the DA7 turned OFF. Set the
Dipswitches on the card accordingly for the type of devices being connected. 
Insert the card into the WR-DA7. Install all of the supplied mounting screws (for proper ground-
ing) securely to the DA7Õs chassis. 
WR-TDIF: Set the dipswitches, or switches on the card, according to the devices being
connected. 
When connecting a DA-38 or DA-98 (SW1) ON, (SW2) OFF
When connecting a DA-88 (SW1) OFF, (SW2) OFF
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							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 wordclock connections, it is necessary to terminate the last device in the wordclock
chain. The WR-DA7 allows ON/OFF of the 75-Ohm terminator on the wordclock input. 
ON:Is selected when the WR-DA7 is used as a wordclock master or as a slave at the end of
the wordclock connections (terminated at 75 Ohm). (A clock output synchronized with DA7
is generated at the word clockÕs output.) 
OFF:Is selected when the WR-DA7 is used as a slave, the wordclock input entered in the WR-
DA7 is transmitted as a through output. 
MIDI 
To select the port for MIDI communication, press the MIDI switch until the [MIDI>SETUP] screen
appears. Then select the port for [Gen.Rx] and/or [Gen.Tx] from either MIDI or TO PC. 
The MIDI channels assigned to Gen.Rx and Gen.Tx function serve as a device ID number of the
WR-DA7 during reception or transmission of MIDI data. (Select OMNI to receive messages on all
MIDI channels.) For selecting the MIDI channels, press the MIDI switch until the MIDI SETUP
screen appears. Then, select a channel for Gen.Rx or Gen.Tx. 
To control external equipment using MIDI Machine Control commands, set the MMC port to MIDI
and assign a MIDI channel. The MIDI channel needs to be the same as the external equipment
being controlled. To make the setting, press the MIDI switch until the MIDI SETUP screen appears.
Then, set up the MMC port and CH (MIDI channel). 
Timecode 
The WR-DA7 can record and playback automation in synchronization with external timecode. The
WR-DA7 can be synchronized to MIDI timecode (MTC), MIDI clock, and SMPTE timecode (using
the option card WR-SMPT). To select the timecode settings, press the AUTOMATION button until
the SETUP screen appears. Select the appropriate timecode from the TIME BASE area in
Automation EXECUTE window, using the parameter dial select MTC, MIDI CLK, or SMPTE then
push the ENTER key. 
When MTC is used, select a port to be used for receiving the MIDI data. The MTC receive port can
be selected by pressing the MIDI switch until the MIDI SETUP screen appears. Then, select the
MTC port from MIDI or TO PC. 
8 
						

							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 with the tandem slave unit. 
To connect two WR-DA7 mixers in Tandem, install a WR-TNDM card in Slot 3 of each mixer (with
the mixers powered OFF).
Select MASTER/SLAVE on the front panel of each WR-TNDM card.
For proper wordclock synchronization between the two mixers, connect the WORD CLOCK OUT
terminal of the master unit to the WORD CLOCK IN terminal of the slave unit (75 ohm terminate
ON). To set the wordclock of the slave unit, press the D-I/O switch until the INPUT SETUP screen
appears. Then, set the SOURCE SELECT to WCK IN. 
To establish communications between the Tandem mixers connect the specified serial cable
(Macintosh cross cable printer cable) or MIDI cable between the RS-422/485 and MIDI ports on
each of the mixers (TO PC or MIDI IN/OUT) must be selected to establish communications.
Communication setting are selected by pressing the D-I/O switch to display the TO SLOT screen of
D-I/O page then select the port from either TO PC or MIDI. In the case of TO PC connection, the
setting should be set so that the baud rates of the master and slave units are set the same on each
of the mixers (a baud rate of 125k is recommended). For baud rate setting, press the MIDI switch
to display the MIDI SETUP screen then select the necessary baud rate. 
To establish tandem connections, press the D-I/O to display the TO SLOT screen of D-I/O and
switch the TANDEM setting to ON in Slot 3. 
Press the MIDI button in the Set Up section on the TopPanel of the DA7 to select the MIDI SET UP
screen. In the PORT SELECT Area of the SERIAL I/O SETUP section, select TO PC. Set the BAUD
RATE for both consoles to 125K by highlighting  the area with cursor and using dial to select the
rate. In the MIDI SETUP area, make sure the MIDI channels are set to the SAME channels for
Gen.Rx/Gen.Tx for BOTH consoles. Set Gen.Rx/Gen.Tx PORT to TO PC.
Press the D-I/O to display the TO SLOT Window. If TANDEM is not selected in the
NORMAL/INSert/TANDEM area, select  it. Below the ÒSLOT 3 TANDEMÓ area, make sure TANDEM
is set to ON. Select AUTO in the OFFSET DELAY section. Make sure the PORT SELECT is set to TO
PC. The CONNECT area will read SLOT NG or DATA NG until the SLAVE console is configured.
On the Slave console, follow the same procedures. The CONNECT area in the TO SLOT window
will read SLOT NG or DATA NG until data is sent between the consoles. Turning a channel to ON
will initiate the data flow, and the CONNECT prompt in the D-I/O TO SLOT screen  will then read
OK on both DA7s (this can take up 5 seconds).
2.3 ADAT, BRC 
Connections 
To connect an ADAT with the WR-DA7 digitally, the WR-ADAT option card is needed to connect the
9 
						

							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 ÔdigiÕ for external word clock. 
To connect multiple ADAT units, each unit is required to make ID setting. The ID order of the
ADAT are set up automatically according to how the sync cable are connected, starting with 1, in
the order of ADAT SYNC cable connections from SYNC OUT to SYNC IN. (The same ID is used
even when the BRC is connected.) 
The ADATs must be powered-up before the BRC. The BRC should be turned on last. 
Wordclock 
If the ADAT is being used as the wordclock master set the ADAT wordclock to INT. The WR-DA7
functions as an ADAT SLAVE. The WR-DA7 wordclock settings can be set by pressing the D-I/O
switch to display the INPUT SET window of the D-I/O setup section. Then; the SOURCE SELECT is
used to select the slot where the WR-ADAT card is inserted. Cursor to that Slot and press Enter.
LOCK should be displayed in the adjacent window.
When the ADAT and the BRC are in the wordclock master mode, the sampling rate is determined
by selecting the Fixed Mode to 48kHz. 
To set the sampling rate at 44.1kHz, select the Variable Mode and press the PITCH DOWN switch
on the front panel. Make the setting -147 cent (Ô44.1Õ display). 
For the ADAT-XT, this setting is done with the CLOCK SELECT switch on the front panel and the
ADAT is set to INT clock.
To use the WR-DA7 as the wordclock master, press the CLOCK SELECT switch on the front panel
of ADAT XT to set up the ADAT XT to DIG to slave to an external clock source. When using a BRC
as ADAT master controller it is recommended that the BRC be set to slave to the DA7. To do this
press the Edit button then the External Sync button on the BRC and select 48 kHz input using the
arrow keys. Press the Edit button to exit this mode. Make sure the EXTERNAL SYNC mode is
selected (the external sync button will light green). 
MIDI 
To use the ADATÕs MMC operations from the DA7 with a BRC, it is necessary that the transmitting
MIDI channel of the WR-DA7 match the MIDI channel of MMC to be received on the BRC. 
For MIDI setting on the BRC, press the MIDI/UTIL to display #11:
MIDI Device screen and set up the value of (MIDI channel of the
MMC command to be output from the WR-DA7) Ð 1. 
Set up ÔALLÕ if it is necessary for the BRC to receive the MIDI messages from other MIDI equip-
ment. 
When a MIDI message is received at the MIDI IN terminal of the BRC it is immediately transferred
as a through output from the MIDI OUT terminal. To send MIDI data through the BRC, press the
MIDI/UTIL switch several times on the front panel of the BRC to display the 1:MIDI ECHO screen,
then select ÔONÕ using the arrow keys. 
10 
						

							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 displayed. Output Rew/FF SMPTE AND MTC:
Screen, and select to ÔON.Õ 
2.4 DA-98, 88, 38 
Connections 
When making connections between the DA98, 88, 38 and the WR-DA7, use the WR-TDIF option
card and make the connections using the Panasonic part # DA/DB-TDIF(Available in the USA) or
use Part # PW-88D (1m) or PW-88D-L (5m) made by TASCAM.
Set the dipswitches on the WR-TDIF card, according to the model of DA-98, 88, or 38. 
(SW1) ON, (SW2) OFF: When the DA-38 or DA-98 is connected. 
(SW1) OFF, (SW2) OFF: When the DA-88 is connected. 
To receive a digital signal on the DA-98, 88, or 38, press the DIGITAL IN switch on the front panel
to select the ÔDIGITAL INÕ indicator. 
When multiple DA98, 88, or 38s are connected, set the machine ID to Ô1Õ (Ô0Õ in the case of DA-
88s) on the first unit (master unit). The machine IDs of the slave units should be set sequentially,
starting with Ô2Õ subsequent to the units connected using the PW-88S Sync cables. 
The machine ID for the DA-88 is the number added with (ID No. of
the rear panel switch) + 1. 
When multiple DA98, 88, 38s are connected using the PW-88S Sync cables, the terminator included
with the Sync cables should be connected to the Sync OUT terminal of the last device. 
Wordclock 
When the DA-98, 88, or 38 is used as the wordclock master, the wordclock for the DA-98, 88, or 38
is set to ÔINT.Õ The Wordclock selection is made by pressing the CLOCK switch on the front panel
to select ÔINT.Õ 
To set the clock selection to INT, WORD, or VIDEO press the CLOCK
switch on the front panel of the DA-98, 88, and 38, the machine IDs
of the DA-98, 88, and 38 are required to be set as 
specified below. 
DA-98, 38: ID=1 
DA-88: ID=0 
To use a DA-88 as the wordclock master, connect a 75 ohm BNC to BNC cable from the WORD
SYNC OUT terminal of the DA-88 to the WCK IN terminal of the WR-DA7. Then press the D-I/O
switch of the WR-DA7 several times in order to display the INPUT SET screen of the D-I/O window.
Then, select the SOURCE SELECT to ÔWCK IN.Õ 
11 
						

							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 is automatically selected according to the sample rate on the
tape. 
When the WR-DA7 is the wordclock master, the BNC cable should be connected from the WORD
CLOCK OUT terminal of the WR-DA7 to the WORD SYNC IN terminal of the DA-98 or 38. Select
WORD by pressing the CLOCK switch on the front panel of the DA-98 or 38. 
When Connecting a DA-88 the WR-DA7 must function as the slave unit. 
MIDI 
For MMC control from the WR-DA7 to the DA-98, select Menu Group 3 in the DA-98 screen and
select the Ctrl Prt (Control Protocol) to ÔMIDI.Õ 
For the MIDI ID of MMC being received on the DA-98, select Menu Group 7 in the DA-98 screen
and set the MIDI ID to the same number of the MIDI channel of the MMC to be sent from the WR-
DA7. 
Install the SY-88 Sync board to perform MMC operation from the 
WR-DA7 to the DA88. 
For SY-88 Sync board setting, set the MODE dip switch 2 on the rear panel at 0 (OFF) so that con-
trol from external equipment can be accomplished through the MIDI port. 
Timecode 
When playing back the timecode recorded on the tape from the DA-98, select Menu Group 5 in
the DA-98 screen and set Tape (ABS) with OutTc Src. 
To generate the MTC output from the DA-98, select Menu Group 7 on the DA-98 screen and set
the output to ÔONÕ with MTC Out. To generate the MTC output while the DA-98 is in FF/REW oper-
ation, set fast to ÔON.Õ To generate the MTC output when the DA-98 is stopped, set Stop to ÔON.Õ 
To generate the timecode output from the DA-98 in synchronization with the digital audio data,
select Menu Group 5 in the DA-98 screen and set  ÔDigitalÕ with OutTc Tmg. 
When an SY-88 Sync board is installed in the DA-88, it is possible to generate SMPTE timecode and
MTC (MIDI timecode) from the DA-88. 
For proper SY-88 Sync board setting, set the MODE dip switch 6 on the rear panel to 1 (ON) so
that the timecode recorded on the tape of the DA-88 can be converted to MTC. 
If the MODE dip switch 6 is set to 0 (OFF), the timecode received in the TIME CODE IN terminal
of the DA-88 is then outputted after being converted to MTC. 
To generate timecode from the DA-88 in synchronization with the digital audio data set the MODE
dip switch 5 on the SY-88Õs real panel to 0 (OFF).