Yamaha RSIO64-D User Manual

I/O RACK

Owner’s Manual

AUDIO INTERFACE

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Manuale di istruzioni

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The above warning is located on the top of the unit.
L’avertissement ci-dessus est situé sur le dessus de l’unité.

Explanation of Graphical Symbols
Explication des symboles

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated “danger­ous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

L’éclair avec une flèche à l’intérieur d’un triangle équilatéral est destiné à attirer l’attention de l’utilisateur sur la présence d’une « tension
dangereuse » non isolée à l’intérieur de l’appareil, pouvant être suffisamment élevée pour constituer un risque d’électrocution.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (ser­vicing) instructions in the literature accompanying the product.

Le point d’exclamation à l’intérieur d’un triangle équilatéral est destiné à attirer l’attention de l’utilisateur sur la présence d’instructions
importantes sur l’emploi ou la maintenance (réparation) de l’appareil dans la documentation fournie.

IMPORTANT SAFETY
INSTRUCTIONS

1 Read these instructions.
2 Keep these instructions.
3 Heed all warnings.
4 Follow all instructions.
5 Do not use this apparatus near water.
6 Clean only with dry cloth.
7 Do not block any ventilation openings. Install in accordance with the

manufacturer’s instructions.

8 Do not install near any heat sources such as radiators, heat registers,

stoves, or other apparatus (including amplifiers) that produce heat.

9 Do not defeat the safety purpose of the polarized or grounding-type

plug. A polarized plug has two blades with one wider than the other. A
grounding type plug has two blades and a third grounding prong. The
wide blade or the third prong are provided for your safety. If the pro­vided plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.

10 Protect the power cord from being walked on or pinched particularly at

plugs, convenience receptacles, and the point where they exit from the

apparatus.
11 Only use attachments/accessories specified by the manufacturer.
12 Use only with the cart, stand, tripod, bracket, or

table specified by the manufacturer, or sold with

the apparatus. When a cart is used, use caution

when moving the cart/apparatus combination to

avoid injury from tip-over.
13 Unplug this apparatus during lightning storms or

when unused for long periods of time.
14 Refer all servicing to qualified service personnel. Servicing is required

when the apparatus has been damaged in any way, such as power-

supply cord or plug is damaged, liquid has been spilled or objects

have fallen into the apparatus, the apparatus has been exposed to rain

or moisture, does not operate normally, or has been dropped.

(UL60065_03)

PRÉCAUTIONS CONCER­NANT LA SÉCURITÉ

1 Lire ces instructions.
2 Conserver ces instructions.
3 Tenir compte de tous les avertissements.
4 Suivre toutes les instructions.
5 Ne pas utiliser ce produit à proximité d’eau.
6 Nettoyer uniquement avec un chiffon propre et sec.
7 Ne pas bloquer les orifices de ventilation. Installer l’appareil confor-

mément aux instructions du fabricant.

8 Ne pas installer l’appareil à proximité d’une source de chaleur comme

un radiateur, une bouche de chaleur, un poêle ou tout autre appareil (y
compris un amplificateur) produisant de la chaleur.

9 Ne pas modifier le système de sécurité de la fiche polarisée ou de la

fiche de terre. Une fiche polarisée dispose de deux broches dont une
est plus large que l’autre. Une fiche de terre dispose de deux broches
et d’une troisième pour le raccordement à la terre. Cette broche plus
large ou cette troisième broche est destinée à assurer la sécurité de
l’utilisateur. Si la fiche équipant l’appareil n’est pas compatible avec
les prises de courant disponibles, faire remplacer les prises par un
électricien.

10 Acheminer les cordons d’alimentation de sorte qu’ils ne soient pas

piétinés ni coincés, en faisant tout spécialement attention aux fiches,
prises de courant et au point de sortie de l’appareil.

11 Utiliser exclusivement les fixations et accessoires spécifiés par le

fabricant.

12 Utiliser exclusivement le chariot, le stand, le tré-

pied, le support ou la table recommandés par le
fabricant ou vendus avec cet appareil. Si l’appa­reil est posé sur un chariot, déplacer le chariot
avec précaution pour éviter tout risque de chute
et de blessure.

13 Débrancher l’appareil en cas d’orage ou lorsqu’il

doit rester hors service pendant une période prolongée.

14 Confier toute réparation à un personnel qualifié. Faire réparer l’appa-

reil s’il a subi tout dommage, par exemple si la fiche ou le cordon d’ali­mentation est endommagé, si du liquide a coulé ou des objets sont
tombés à l’intérieur de l’appareil, si l’appareil a été exposé à la pluie ou
à de l’humidité, si l’appareil ne fonctionne pas normalement ou est
tombé.

(UL60065_03)

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

AVERTISSEMENT

POUR RÉDUIRE LES RISQUES D’INCENDIE OU DE DÉCHARGE ÉLEC­TRIQUE, N’EXPOSEZ PAS CET APPAREIL À LA PLUIE OU À L’HUMIDITÉ.

2

Owner’s Manual

이 기기는 가정용(B급) 전자파적합기기로서 주로 가정에서 사용하는 것을 목적으로
하며, 모든 지역에서 사용할 수 있습니다.

(class b korea)

1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!

This product, when installed as indicated in the instructions con­tained in this manual, meets FCC requirements. Modifications
not expressly approved by Yamaha may void your authority,
granted by the FCC, to use the product.

2. IMPORTANT: When connecting this product to accessories

and/or another product use only high quality shielded cables.
Cable/s supplied with this product MUST be used. Follow all
installation instructions. Failure to follow instructions could void
your FCC authorization to use this product in the USA.

3. NOTE: This product has been tested and found to comply with

the requirements listed in FCC Regulations, Part 15 for Class “B”
digital devices. Compliance with these requirements provides a
reasonable level of assurance that your use of this product in a
residential environment will not result in harmful interference with
other electronic devices. This equipment generates/uses radio
frequencies and, if not installed and used according to the
instructions found in the users manual, may cause interference
harmful to the operation of other electronic devices. Compliance

with FCC regulations does not guarantee that interference will
not occur in all installations. If this product is found to be the
source of interference, which can be determined by tur

ning the
unit “OFF” and “ON”, please try to eliminate the problem by using
one of the following measures:

Relocate either this product or the device that is being affected
by the interference.

Utilize power outlets that are on different branch (circuit breaker
or fuse) circuits or install AC line filter/s.

In the case of radio or TV interference, relocate/reorient the
antenna. If the antenna lead-in is 300 ohm ribbon lead, change
the lead-in to co-axial type cable.

If these corrective measures do not produce satisfactory results,
please contact the local retailer authorized to distribute this type
of product. If you can not locate the appropriate retailer, please
contact Yamaha Corporation of America, Electronic Service Divi-
sion, 6600 Orangethorpe Ave, Buena Park, CA90620

The above statements apply ONLY to those products distributed
by Yamaha Corporation of America or its subsidiaries.

* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA. (class B)

FCC INFORMATION (U.S.A.)

COMPLIANCE INFORMATION STATEMENT

(DECLARATION OF CONFORMITY PROCEDURE)

Responsible Party : Yamaha Corporation of America

Address : 6600 Orangethorpe Ave., Buena Park, Calif. 90620

Telephone : [phone]

Type of Equipment : Audio Interface

Model Name : RSio64-D

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:

1) this device may not cause harmful interference, and

2) this device must accept any interference received including interference that may
cause undesired operation.

See user manual instructions if interference to radio reception is suspected.

* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA. (FCC DoC)

IMPORTANT NOTICE FOR THE UNITED KINGDOM

Connecting the Plug and Cord

WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT. The wires in this
mains lead are coloured in accordance with the following code:

GREEN-AND-YELLOW : EARTH
BLUE : NEUTRAL

BROWN : LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with
the coloured markings identifying the terminals in your plug proceed as follows:

The wire which is coloured GREEN-and-YELLOW must be connected to the terminal in
the plug which is marked by the letter E or by the safety earth symbol or colored
GREEN or GREEN-and-YELLOW.

The wire which is coloured BLUE must be connected to the terminal which is marked
with the letter N or coloured BLACK.

The wire which is coloured BROWN must be connected to the terminal which is
marked with the letter L or coloured RED.

(3 wires)

In Finland: Laite on liitettävä suojamaadoituskoskettimilla varustettuun pistorasiaan.
In Norway: Apparatet må tilkoples jordet stikkontakt.
In Sweden: Apparaten skall anslutas till jordat uttag.

(class I hokuo)

Owner’s Manual

3

Contents

PRECAUTIONS. . . . . . . . . . . . . . . . . . .5

Introduction 8

Features....................................................... 8

Precautions for Rack Mounting .................... 8

Firmware Updates........................................ 8

Troubleshooting . . . . . . . . . . . . . . . 21

Messages 22

Error Messages........................................... 22

Warning Messages ..................................... 22

Information Messages ................................ 23

Specifications . . . . . . . . . . . . . . . . 166

Dimensions . . . . . . . . . . . . . . . . . . 167

Controls and Functions 9

Front Panel .................................................. 9

Rear Panel.................................................. 12

Connections 14

Installing a Mini-YGDAI card ...................... 14

About Dante.............................................. 14

Notes Regarding the Use of

Network Switches ................................. 15

About Dante Controller ............................. 15

Connecting AC Power................................ 15

Power on and off ....................................... 15

Specifying the audio routing 16

Editing the user pattern ............................. 17

About R Remote V3 ................................... 17

About the number of

input/output channels........................... 17

Block Diagram . . . . . . . . . . . . . . . 168

Various settings

Specifying the RSio64-D’s word clock...........18

Specifying the audio routing ........................16

Specifying the ID that

distinguishes the RSio64-D ...................... 10

Specifying the UNIT ID range .......................10

Specifying how the IP address is set..............10

Specifying the type of

connection to the Dante network ............11

Initializing the RSio64-D ...............................20

Specifying the SRC word clock .....................11

Included items (please check)

•Owner’s manual

•Power cord

Word Clock 18

Selecting a word clock source.................... 18

About word clock ...................................... 18

SRC (Sampling Rate Converter). . . .18

Other functions 19

Remote control.......................................... 19

IDENTIFY ................................................... 19

Panel lock .................................................. 19

Initializing the RSio64-D............................. 20

Updating the RSio64-D’s

hardware settings.................................. 20

4

Owner’s Manual

PA_en_4 1/2

PRECAUTIONS

PLEASE READ CAREFULLY
BEFORE PROCEEDING

Please keep this manual in a safe place for
future reference.

WARNING

Always follow the basic precautions listed below to
avoid the possibility of serious injury or even death
from electrical shock, short-circuiting, damages, fire
or other hazards. These precautions include, but are
not limited to, the following:

Power supply/power cord

• Do not place the power cord near heat sources such as
heaters or radiators, and do not excessively bend or
otherwise damage the cord, place heavy objects on it, or
place it in a position where anyone could walk on, trip over,
or roll anything over it.

• Only use the voltage specified as correct for the device.
The required voltage is printed on the name plate of the
device.

• Use only the supplied power cord/plug.
If you intend to use the device in an area other than in the
one you purchased, the included power cord may not be
compatible. Please check with your Yamaha dealer.

• Check the electric plug periodically and remove any dirt or
dust which may have accumulated on it.

• When setting up the device, make sure that the AC outlet
you are using is easily accessible. If you feel that a
malfunction has occurred, immediately turn off the power,
unplug the power cord plug from the electrical outlet, and
also disconnect the connected power supply from the EXT
DC INPUT jack. Even when the power switch is turned off,
as long as the power cord is not unplugged from the wall
AC outlet, the device will not be disconnected from the
power source.

• Be sure to connect to an appropriate outlet with a
protective grounding connection. Improper grounding can
result in electrical shock, damage to the device(s), or even
fire.

Do not open

• This device contains no user-serviceable parts. Do not
open the device or attempt to disassemble the internal
parts or modify them in any way. If it should appear to be
malfunctioning, discontinue use immediately and have it
inspected by qualified Yamaha service personnel.

Water warning

• Do not expose the device to rain, use it near water or in
damp or wet conditions, or place on it any containers (such
as vases, bottles or glasses) containing liquids which might
spill into any openings. If any liquid such as water seeps
into the device, turn off the power immediately and unplug
the power cord from the AC outlet. Then have the device
inspected by qualified Yamaha service personnel.

• Never insert or remove an electric plug with wet hands.

Fire warning

• Do not put burning items, such as candles, on the unit.
A burning item may fall over and cause a fire.

If you notice any abnormality

• When one of the following problems occur, immediately
turn off the power switch and disconnect the electric plug
from the outlet. Then have the device inspected by Yamaha
service personnel.

- The power cord or plug becomes frayed or damaged.

- It emits unusual smells or smoke.

- Some object has been dropped into the device.

- There is a sudden loss of sound during use of the device.

• If this device should be dropped or damaged, immediately
turn off the power switch, disconnect the electric plug from
the outlet, and have the device inspected by qualified
Yamaha service personnel.

CAUTION

Always follow the basic precautions listed below to
avoid the possibility of physical injury to you or
others, or damage to the device or other property.
These precautions include, but are not limited to, the
following:

Power supply/power cord

• When removing the electric plug from the device or an
outlet, always hold the plug itself and not the cord. Pulling
by the cord can damage it.

• Remove the electric plug from the outlet when the device is
not to be used for extended periods of time, or during
electrical storms.

Location

• Do not place the device in an unstable position where it
might accidentally fall over.

• Do not block the vents. This device has ventilation holes at
the front/sides to prevent the internal temperature from
becoming too high. In particular, do not place the device
on its side or upside down. Inadequate ventilation can
result in overheating, possibly causing damage to the
device(s), or even fire.

• When installing the device:

- Do not cover it with any cloth.

- Do not install it on a carpet or rug.

- Make sure the top surface faces up; do not install on its

sides or upside down.

- Do not use the device in a confined, poorly-ventilated

location.

Inadequate ventilation can result in overheating, possibly
causing damage to the device(s), or even fire.

• Do not place the device in a location where it may come
into contact with corrosive gases or salt air. Doing so may
result in malfunction.

• Before moving the device, remove all connected cables.

Owner’s Manual

5

PA_en_4 2/2

• When setting up the device, make sure that the AC outlet
you are using is easily accessible. If some trouble or
malfunction occurs, immediately turn off the power switch
also disconnect the unit from the power supply that is
connected to the EXT DC INPUT jack. Even when the
power switch is turned off, electricity is still flowing to the
product at the minimum level. When you are not using the
product for a long time, make sure to unplug the power
cord from the wall AC outlet.

• If the device is mounted in an EIA standard rack, carefully
read the section “Precautions for Rack Mounting” on page

8. Inadequate ventilation can result in overheating,
possibly causing damage to the device(s), malfunction, or
even fire.

Connections

• Before connecting the device to other devices, turn off the
power for all devices. Before turning the power on or off for
all devices, set all volume levels to minimum.

Maintenance

• Periodically inspect and clean the air filter of the front panel
ventilation opening (page 11). Dust and dirt can seriously
degrade the effectiveness of the cooling fan and result in
malfunction or fire.

• Remove the power plug from the AC outlet when cleaning
the device.

Handling caution

NOTICE

To a void the possibility of malfunction/ damage to the product,
damage to data, or damage to other property, follow the
notices below.

 Handling and maintenance

• Do not use the device in the vicinity of a TV, radio, stereo
equipment, mobile phone, or other electric devices. Other­wise, the device, TV, or radio may generate noise.

• Do not expose the device to excessive dust or vibration, or
extreme cold or heat (such as in direct sunlight, near a
heater, or in a car during the day), in order to prevent the
possibility of panel disfiguration, unstable operation, or
damage to the internal components.

• Do not place vinyl, plastic or rubber objects on the device,
since this might discolor the panel.

• When cleaning the device, use a dry and soft cloth. Do not
use paint thinners, solvents, cleaning fluids, or chemical-
impregnated wiping cloths.

• Condensation can occur in the device due to rapid, drastic
changes in ambient temperature—when the device is
moved from one location to another, or air conditioning is
turned on or off, for example. Using the device while con­densation is present can cau

believe that condensation might have occurred, leave

to
the device for several hours without turning on the power
until the condensation has completely dried out.

•Always turn the power off when the device is not in use.

se damage. If there is reason

• Do not insert your fingers or hands in any gaps or openings
on the device (vents).

• Avoid inserting or dropping foreign objects (paper, plastic,
metal, etc.) into any gaps or openings on the device (vents,
etc.) If this happens, turn off the power immediately and
unplug the power cord from the AC outlet. Then have the
device inspected by qualified Yamaha service personnel.

• Do not rest your weight on the device or place heavy
objects on it, and avoid use excessive force on the buttons,
switches or connectors.

Yamaha cannot be held responsible for damage caused
by improper use or modifications to the device, or data
that is lost or destroyed.

Information

 About this manual

• The illustrations as shown in this manual are for instruc-
tional purposes only.

• The company names and product names in this manual
are the trademarks or registered trademarks of their
respective companies.

6

Owner’s Manual

Information for Users on Collection and Disposal of Old Equipment

The model number, serial number, power requirements, etc., may be found on or
near the name plate, which is at the top of the unit. You should note this serial
number in the space provided below and retain this manual as a permanent
record of your purchase to aid identification in the event of theft.

Model No.

Serial No.

(rear_en_01)

This symbol on the products, packaging, and/or accompanying documents means that used electrical
and electronic products should not be mixed with general household waste.
For proper treatment, recovery and recycling of old products, please take them to applicable collection
points, in accordance with your national legislation and the Directives 2002/96/EC.

By disposing of these products correctly, you will help to save valuable resources and prevent any poten-
tial negative effects on human health and the environment which could otherwise arise from inappropri-
ate waste handling.

For more information about collection and recycling of old products, please contact your local municipal-
ity, your waste disposal service or the point of sale where you purchased the items.

[For business users in the European Union]

If you wish to discard electrical and electronic equip
ther information.

[Information on Disposal in other Countries outside the European Union]

This symbol is only valid in the European Union. If you wish to discard these items, please contact your
local authorities or dealer and ask for the correct method of disposal.

European Models

Purchaser/User Information specified in EN55103-1:2009 and EN55103-2:2009.
Inrush Current: 1.0A (on initial switch-on)

1.0A (after a supply interruption of 5s)

Conforms to Environments: E1, E2, E3 and E4

ment, please contact your dealer or supplier for fur-

(weee_eu_en_01)

Owner’s Manual

7

Introduction

Introduction

Thank you for choosing the Yamaha RSio64-D audio
interface.

To take full advantage of the superior functions and
performance offered by the RSio64-D, and to enjoy years of
trouble-free use, be sure to read this owner’s manual
carefully before operation.

Features

The RSio64-D is an interface that can be used as a router
and format converter between Dante and Mini-YGDAI
cards.

This allows Mini-YGDAI cards that support a wide variety
of input/output formats and processing to be connected to
a Dante network, meeting the needs of various types of
systems including broadcast, live, recording, and post­production. In addition, the settings of the RSio64-D can
be fully controlled from a CL or QL series console.

• A wide variety of Mini-YGDAI cards can be used,
including processing cards as well as input/output cards.

Precautions for Rack Mounting

This unit is rated for operation at ambient temperatures
ranging from 0 to 40 degrees Celsius. When mounting the
unit with other RSio unit(s) or other device(s) in an EIA
standard equipment rack, internal temperatures can
exceed the specified upper limit, resulting in impaired
performance or failure. When rack mounting the unit,
always observe the following requirements to avoid heat
buildup:

• When mounting the unit in a rack with devices such as
power amplifiers that generate a significant amount of
heat, leave more than 1U of space between the RSio and
other equipment. Also either leave the open spaces
uncovered or install appropriate ventilating panels to
minimize the possibility of heat buildup.

• To ensure sufficient airflow, leave the rear of the rack
open and position it at least 10 centimeters from walls or
other surfaces. If you’ve installed a fan kit, there may be
cases in which closing the rear of the rack will produce a
greater cooling effect. Refer to the rack and/or fan unit
manual for details.

• Each MY slot provides an SRC (Sampling Rate
Converter) to allow digital connection between differing
word clock routes.

• Seven different widely usable routing patterns are preset,
including routing between Mini-YGDAI cards. Matrix
patching from R Remote V3 or a CL/QL console.

• EXT DC INPUT supports redundant power supplies.

• Dante redundancy (primary/secondary) is supported.

NOTE

Before you install Mini-YGDAI cards in slots 1–4, you must
check the Yamaha website to determine whether the card is
compatible with the RSio64-D, and to verify the total number
of Yamaha or third-party cards that can be installed in
combination with that card.

Yamaha website:

http://www.yamahaproaudio.com/

Firmware Updates

This product enables you to update the unit firmware to
improve operations, add functions, and correct possible
malfunctions. The following two types of firmware are
available for the unit:

•Unit’s firmware

•Dante module firmware

Firmware updates are performed from R Remote V3.
Details on updating the firmware are available on the
following website:

http://www.yamahaproaudio.com/

For information on updating the unit, refer to the firmware
update guide available on the website.

NOTE

It is necessary to update other devices depending on the
version of each device in the Dante network. For details,
refer to the firmware compatibility available on the Yamaha
website.

http://www.yamahaproaudio.com/

8

Owner’s Manual

Controls and Functions

ON

12345678ON1234

o!0r!3 tyq!3

we u i !1 !2

Front Panel

Controls and Functions

q SLOT 1–4 [LOCK] indicators

These indicate the word clock status of slots 1–4. The
indicator is lit green if operation is normal.

Unlit

Green (lit)

LOCK

Green

(flashing)

SYNC

ERROR

Red (lit)

UNLOCK

Red

(flashing)

WRONG

WORD

CLOCK

No card is installed in the slot, or an unsup-
ported card is installed.

This indicates that a clock synchronized with
the clock source selected by the WORD
CLOCK select key is being input from the card.
If an external device is connected to the corre­sponding slot, input/output is occurring cor­rectly between that device and the RSio64-D.
If the sampling frequency is close, this status
is shown in some cases even if not synchro­nized.

A valid clock is being input from the card, but is
not synchronized with the clock source
selected by the WORD CLOCK select key. If
an external device is connected to the corre­sponding slot, input/output is not occurring
correctly between that device and the RSio64­D. Input/output will occ
turned ON.

A valid clock is not being input from the card. If
an external device is connected to the corre­sponding slot, input/output cannot occur cor­rectly between that device and the RSio64-D.

The frequency of the clock source selected by
the WORD CLOCK select key is outside the
range of operating frequencies of the card
installed in the slot. Either set the frequency of
the clock source to be within the operating
range of the card, or turn SRC on. In the case
of an analog card, turning SRC on makes the
card operate at the RSio64-D’s internal fre­quency of 48 kHz.

orrectly if SRC is

ur c

NOTE

• If the SLOT1–4 [LOCK] indicators and the SLOT1–4 [SRC]
indicators and all WORD CLOCK indicators simultaneously
flash red at startup, overcurrent has occurred in a Mini­YGDAI card, or a malfunctioning Mini-YGDAI card is
installed. Turn off the power and remove the card that is
causing the problem.

• If the SLOT1–4 [LOCK] indicators and the SLOT1–4 [SRC]
indicators alternately flash red at startup, the hardware
settings of the RSio64-D need to be updated (page 20).

• If the SLOT1–4 [LOCK] indicators sequentially light green in
the order of 1–4 at startup, the clocks of the slots are
synchronizing. This may take several tens of seconds.

w SLOT 1–4 [SRC] indicators

These indicate the SRC (Sampling Rate Converter)
status of slots 1–4.

Unlit SRC is off.

Green (lit)

Red (lit)

SRC is on, and the clock selected by the SRC
WCLK DIP switch is being input correctly.

SRC is on, but an appropriate clock is not

being input. It may be that the clock selected
by the SRC WCLK DIP switch is not being

input, or is outside the operating range. Either
turn SRC off, or change the setting of the DIP
switch.

NOTE

The SRC clock sent to a Mini-YGDAI card installed in a slot
is selected by the SRC WCLK DIP switch (page 11).

e SLOT 1–4 [SRC] keys

For each slot, these turn SRC on/off for the slot’s input
as well as output.

Owner’s Manual

9