Yamaha Audio AD824 User Manual

AD CONVERTER

ON OFF

POWER

AD CONVERTER

12345678

PEAK

SIGNAL

NOMINAL

PEAK

SIGNAL

+48V

SEL

NOMINAL

+48V

WORD CLOCK

INTERNAL

44.1kHz BNC SLOT48kHz

SEL

dB

GAIN

OFF ON

+48V MASTER

Owner’s Manual

Keep This Manual For Future Reference.

E

FCC INFORMATION (U.S.A.)

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 turning 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 coaxial 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
Division, 6600 Orangethorpe Ave, Buena Park, CA 90620

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

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 coloured 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.

* This applies only to products distributed by YAMAHA KEMBLE

MUSIC (U.K.) LTD.

NEDERLAND THE NETHERLANDS

ADVARSEL!
Lithiumbatteri—Eksplosionsfare ved fejlagtig
håndtering. Udskiftning må kun ske med batteri
af samme fabrikat og type. Levér det brugte
batteri tilbage til leverandoren.

VARNING
Explosionsfara vid felaktigt batteribyte. Använd
samma batterityp eller en ekvivalent typ som
rekommenderas av apparattillverkaren.
Kassera använt batteri enligt fabrikantens
instruktion.

VAROITUS
Paristo voi räjähtää, jos se on virheellisesti
asennettu. Vaihda paristo ainoastaan
laitevalmistajan suosittelemaan tyyppiin. Hävitä
käytetty paristo valmistajan ohjeiden
mukaisesti.

● Dit apparaat bevat een lithium batterij voor geheugen

back-up.

● Raadpleeg uw leverancier over de verwijdering van de

batterij op het moment dat u het apparaat ann het einde
van de levensduur afdankt of de volgende Yamaha Service
Afdeiing:

Yamaha Music Nederland Service Afdeiing
Kanaalweg 18-G, 3526 KL UTRECHT
Tel. [phone]

● Gooi de batterij niet weg, maar lever hem in als KCA.

● This apparatus contains a lithium battery for memory

back-up.

● For the removal of the battery at the moment of the

disposal at the end of the service life please consult your
retailer or Yamaha Service Center as follows:

Yamaha Music Nederland Service Center
Address: Kanaalweg 18-G, 3526 KL

UTRECHT

Tel: [phone]

● Do not throw away the battery. Instead, hand it in as small

chemical waste.

i

Important Information

Please read the following before using the AD824

Warnings

• Do not subject the AD824 to extreme temperatures, humidity, direct sunlight, or dust,
which could be a potential fire or electrical shock hazard.

• Do not allow water to enter the AD824 or allow it to become wet. Fire or electrical shock
may result.

• Connect the power cord only to an AC outlet of the type stated in this
or as marked on the AD824. Failure to do so is a fire and electrical shock hazard.

• Hold the power-cord plug when disconnecting from an AC outlet. Never pull the cord.
A power cord damaged through pulling is a potential fire and electrical shock hazard.

• Do not touch the power plug with wet hands. Doing so is a potential electrical shock
hazard.

• Do not place heavy objects, including the AD824, on top of the power cord. A damaged
power cord is a fire and electrical shock hazard. In particular, be careful not to place
heavy objects on a power cord covered by a carpet.

• Do not scratch, bend, twist, pull, or heat the power cord. A damaged power cord is a
fire and electrical shock hazard.

• If the power cord is damaged (e.g., cut or a bare wire is exposed), ask your dealer for a
replacement. Using the AD824 with a damaged power cord is a fire and electrical shock
hazard.

• Do not plug several devices into the same AC outlet. This may overload the AC outlet,
and could be a fire or electrical shock hazard. It may also affect the performance of some
equipment.

• If you notice any abnormality, such as smoke, odor, or noise, or if a foreign object or
liquid gets inside the AD824, turn it off immediately. Remove the power cord from the
AC outlet and consult your dealer for repair. Using the AD824 in this condition is a fire
and electrical shock hazard.

• Do not place small objects on top of the AD824. Metal objects falling inside the AD824
is a fire and electrical shock hazard.

• If a foreign object or water gets inside the AD824, turn it off immediately. Remove the
power cord from the AC outlet and consult your dealer for repair. Using the AD824 in
this condition is a potential fire and electrical shock hazard.

• Should the AD824 be dropped or the cabinet be damaged, turn off the power, remove
the power plug from the AC outlet, and contact your dealer. If you continue using the
unit without heeding this instruction, fire or electrical shock may result.

• Do not remove the AD824’s cover. You could receive an electrical shock. If you think
internal inspection, maintenance, or repair is necessary, contact your dealer.

• Do not attempt to modify the AD824. This is a potential fire and electrical shock haz­ard.

• Do not block the AD824 ventilation slots. Blocking the ventilation slots is a potential
fire hazard.

Owner’s Manual

AD824—Owner’s Manual

ii

Cautions

• Allow enough free space around the unit for normal ventilation. This should be: 10 cm
at the sides, 15 cm behind, and 30 cm above. These distances should also be adopted
when rack-mounting the AD824. For normal ventilation during use, remove the rear
of the rack or open a ventilation hole. If the airflow is not adequate, the AD824 will heat
up inside and may cause a fire.

• Use the AD824 in an environment with a temperature of between 10˚C and 35˚C (50˚F
and 95˚F).

• Turn off all equipment before connecting it to the AD824, and use only the cables spec­ified in the relevant owner’s manuals.

• If you plan not to use the AD824 for a long period of time, remove the power cord from
the AC outlet. Leaving the AD824 connected is a potential fire hazard.

• Do not use benzene, thinner, cleaning detergent, or a chemical cloth to clean the
AD824. Use only a soft, dry cloth.

• If the AD824 is stored in a cold place (e.g., overnight in a car), and then moved to a
warmer environment, or the temperature rises sharply, condensation may form inside
the AD824, which may affect performance. In such cases, the AD824 should be allowed
to acclimatize for about one hour before use.

• When the wordclock source is changed on the wordclock master device (e.g., this
AD824, a DME32 or 02R), noise may occur from the outputs of the wordclock slave
devices, especially a AD824 with an MY8-AT I/O card installed, so turn down your
power amps beforehand, otherwise any connected speakers may be damaged.

• If the error code “E1” or “E3” appears on the GAIN display when the AD824 is turned
on, see your dealer about changing the internal backup battery. Although the AD824
will work even when the battery voltage is low, it may not remember the current settings
next time it’s turned on.

Interference

The AD824 uses high-frequency digital circuits that may cause interference on radio
and television equipment located nearby. If interference is a problem, relocate the
affected equipment.

AD824 Exclusion of Certain Responsibility

Manufacturer, importer, or dealer shall not be liable for any incidental damages includ­ing personal injury or any other damage caused by improper use or operation of the
AD824.

Yamaha cannot be held responsible for any loss of data or data damage due to improper
use or operation of the AD824.

Package Contents

The AD824 package should contain the following items. Contact your Yamaha dealer if
anything is missing.

• AD824 AD Converter

• 9-pin D-sub crossed cable (1.5 m)

• This manual

AD824—Owner’s Manual

iii

Trademarks

ADAT MultiChannel Optical Digital Interface is a trademark of Alesis Corporation.
Tascam Digital Interface is a trademark and Tascam and Teac are registered trademarks
of Teac Corporation. Yamaha is a trademark of Yamaha Corporation. All other trade­marks are the property of their respective holders and are hereby acknowledged.

Copyright

No part of the AD824 software or this Owner’s Manual may be reproduced or distrib­uted in any form or by any means without the prior written authorization of Yamaha
Corporation.

© 2000 Yamaha Corporation. All rights reserved.

AD824—Owner’s Manual

iv

Contents

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Connecting the Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Turning On the Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 Touring the AD824 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Selecting the Wordclock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Setting the Phantom Power for Each Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Setting the +48V Phantom Power Master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Setting the Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Controlling the AD824 Remotely . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4 Digital I/O Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

About Digital I/O Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Card Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Installing I/O Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5 Hookup Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Basic AES/EBU Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Basic ADAT Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

AES/EBU Connection with Splitter Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Dual ADAT Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Insert Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Personal Computer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Yamaha DME32 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Multiple AD824 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Wordclocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

About Wordclocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Wordclock Hookup Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Wordclock Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

AD824—Owner’s Manual

1 Introduction

Welcome

Thank you for choosing the Yamaha AD824 AD Converter. The AD824 is a high-per­formance 8-channel analog-to-digital converter, with 24-bit linear analog-to-digital
converters and 128-times oversampling, providing a typical dynamic range of 110 dB.
Optional mini YGDAI (Yamaha General Digital Audio Interface) cards offer a variety
of digital output interfaces, with support for all the popular digital audio interconnect
formats, including AES/EBU, ADAT, and Tascam TDIF-1.

Analog inputs feature electronically balanced XLRs, high-quality mic preamps, inde­pendently switchable 48-volt phantom powering, and rotary gain adjustment. Inputs
can be used with either microphones or line-level sources. Analog outboard equipment
can be patched into each channel by using the electronically-balanced analog insert
points on two 1/4" TRS phone jacks.

Remote control from a Yamaha DME32, personal computer, or other device is possible
using an exclusive control protocol.

Introduction

1

Installation

The AD824 can be used freestanding on a stable surface, somewhere that complies with
the important information at the beginning of this manual, or mounted in a rack.

When mounting the AD824 in a rack, leave adequate ventilation space around the
AD824 (at least 10 cm of free space behind). If the AD824 is mounted in a portable rack
case, keep the rear of the case open when using the AD824 so as not to obstruct the flow
of air from the air vents. Do not mount the AD824 next to equipment that produces a
lot of heat, such as a power amplifier.

Connecting the Power Cord

Warning: Turn off all equipment before making any connections.

Connect the power-cord plug to a suitable AC wall outlet, one that conforms to the
power supply requirements stated on the AD824 rear panel.

Turning On the Power

To prevent audible thumps and clicks, turn on your audio equipment in
the following order (reverse this order when turning off)—sound
sources, AD824, mixer or recorder (e.g., 02R, DME32, D24, etc.), power
amplifiers.

1

Press the [POWER] switch to turn on the AD824.

The AD824 starts up and the POWER indicator lights up.

POWER
ON OFF

2

Press the [POWER] switch again to turn off the AD824.

The POWER indicator goes out.

AD824—Owner’s Manual

2

Chapter 2—Touring the AD824

2 Touring the AD824

Front Panel

WORD CLOCK

INTERNAL

44.1kHz BNC SLOT48kHz

PEAK

NOMINAL

SIGNAL

+48V

12345678

SEL

PEAK
NOMINAL
SIGNAL

+48V

SEL

32154

dB

+48V MASTER

OFF ON

GAIN

AD CONVERTER

POWER
ON OFF

MLKJ7896

A

PEAK, NOMINAL & SIGNAL indicators

These indicators show the signal level of each channel and light up as follows:

PEAK

3 dB below maximum input level.

NOMINAL

SIGNAL

B

GAIN display

This 3-digit, 7-segment display shows the gain setting of the selected channel.

C

GAIN control

This rotary control is used to set the gain of the selected channel.

D

POWER indicator

This indicator lights up when the AD824 is powered up.

E

POWER switch

This switch is used to turn on the power to the AD824. See “Turning On the Power” on
page 1 for more information.

F

WORD CLOCK indicators

These indicators show the selected wordclock source. When the AD824 cannot lock to
the selected source, the corresponding indicator flashes.

14 dB below maximum input level.

34 dB below maximum input level.

G

WORD CLOCK Source button

This button is used to select the wordclock source: 44.1 kHz internal, 48 kHz internal,
BNC, or SLOT.

Channel SEL indicators

H

These indicators show which channel is currently selected.

Channel SEL buttons

I

These buttons are used to select channels for use with the gain and +48V phantom
power functions.

AD824—Owner’s Manual