Onkyo A-933 User Manual

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Integrated Amplifier

A-933

Instruction Manual

Contents

Introduction.................................... 2

Connections ................................. 10

Thank you for purchasing an Onkyo Integrated Ampli­fier. Please read this manual thoroughly before making
connections and plugging in the unit.
Following the instructions in this manual will enable
you to obtain optimum performance and listening
enjoyment from your new Integrated Amplifier.
Please retain this manual for future reference.

Enjoying Audio Sources.............. 17

Troubleshooting ........................... 20

Specifications .............................. 22

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WARNING:

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

CAUTION:

TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK). NO
USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE
PERSONNEL.

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.

PORTABLE CART WARNING

S3125A

WARNING

RISK OF ELECTRIC SHOCK

DO NOT OPEN

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.

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 appliance.

AVIS

RISQUE DE CHOC ELECTRIQUE

NE PAS

OUVRIR

15. Damage Requiring Service
Unplug the apparatus from the wall outlet and refer
servicing to qualified service personnel under the
following conditions:
A. When the power-supply cord or plug is damaged,
B. If liquid has been spilled, or objects have fallen

into the apparatus,

C. If the apparatus has been exposed to rain or

water,

D. If the apparatus does not operate normally by

following the operating instructions. Adjust only
those controls that are covered by the operating
instructions as an improper adjustment of other
controls may result in damage and will often
require extensive work by a qualified technician
to restore the apparatus to its normal operation,

E. If the apparatus has been dropped or damaged in

any way, and

F. When the apparatus exhibits a distinct change in

performance this indicates a need for service.

16. Object and Liquid Entry
Never push objects of any kind into the apparatus
through openings as they may touch dangerous volt­age points or short-out parts that could result in a
fire or electric shock.
The apparatus shall not be exposed to dripping or
splashing and no objects filled with liquids, such as
vases shall be placed on the apparatus.
Don’t put candles or other burning objects on top of
this unit.

17. Batteries
Always consider the environmental issues and fol­low local regulations when disposing of batteries.

18. If you install the apparatus in a built-in installation,
such as a bookcase or rack, ensure that there is ade­quate ventilation.
Leave 20 cm (8") of free space at the top and sides
and 10 cm (4") at the rear. The rear edge of the shelf
or board above the apparatus shall be set 10 cm (4")
away from the rear panel or wall, creating a flue-like
gap for warm air to escape.

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Precautions

1. Recording Copyright —Unless it’s for personal use

only, recording copyrighted material is illegal with­out the permission of the copyright holder.

2. AC Fuse —The AC fuse inside the unit is not user-

serviceable. If you cannot turn on the unit, contact
your Onkyo dealer.

3. Care —Occasionally you should dust the unit all

over with a soft cloth. For stubborn stains, use a soft
cloth dampened with a weak solution of mild deter­gent and water. Dry the unit immediately afterwards
with a clean cloth. Don’t use abrasive cloths, thin­ners, alcohol, or other chemical solvents, because
they may damage the finish or remove the panel let­tering.

4. Power
WARNING

BEFORE PLUGGING IN THE UNIT FOR THE
FIRST TIME, READ THE FOLLOWING SEC­TION CAREFULLY.
AC outlet voltages vary from country to country.
Make sure that the voltage in your area meets the
voltage requirements printed on the unit’s rear panel
(e.g., AC 230 V, 50 Hz or AC 120 V, 60 Hz).

Some models have a voltage selector switch for
compatibility with power systems around the world.
Before you plug in such a model, make sure that the
voltage selector is set to the correct voltage for your
area.

5. Never Touch this Unit with Wet Hands— Never

handle this unit or its power cord while your hands
are wet or damp. If water or any other liquid gets
inside this unit, have it checked by your Onkyo
dealer.

6. Handling Notes

• If you need to transport this unit, use the original

packaging to pack it how it was when you origi­nally bought it.

• Do not leave rubber or plastic items on this unit

for a long time, because they may leave marks on
the case.

• This unit’s top and rear panels may get warm

after prolonged use. This is normal.

• If you do not use this unit for a long time, it may

not work properly the next time you turn it on, so
be sure to use it occasionally.

For British models

Replacement and mounting of an AC plug on the power
supply cord of this unit should be performed only by
qualified service personnel.

IMPORTANT

The wires in the mains lead are coloured in accordance
with the following code:

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 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.

IMPORTANT

The plug is fitted with an appropriate fuse. If the fuse
needs to be replaced, the replacement fuse must
approved by ASTA or BSI to BS1362 and have the same
ampere rating as that indicated on the plug. Check for
the ASTA mark or the BSI mark on the body of the fuse.
If the power cord’s plug is not suitable for your socket
outlets, cut if off and fit a suitable plug. Fit a suitable
fuse in the plug.

For European Models

Declaration of Conformity

We,

ONKYO EUROPE
ELECTRONICS GmbH
LIEGNITZERSTRASSE 6,
82194 GROEBENZELL,
GERMANY

declare in own responsibility, that the ONKYO product
described in this instruction manual is in compliance with the
corresponding technical standards such as EN60065,
EN55013, EN55020 and EN61000-3-2, -3-3.

GROEBENZELL, GERMANY

I. MORI

ONKYO EUROPE ELECTRONICS GmbH

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❑

❑

❑

❑

❑

❑

❑

Features

Separate design allows various
component configurations

Stereo digital amp featuring Onkyo’s
unique VL (Vector Linear) Digital
technology

Can be used as a power amplifier with a
separate preamp (MAIN IN function)

Super Bass, Bass, and Treble tone
controls

Selectable A/B speaker outputs
Included remote controller can be used

with other Onkyo components
Phono input for connecting a turntable

Supplied Accessories

Make sure you have the following accessories:

Remote controller (RC-613S)
& two batteries (AA/R6)

O
N

1

S
T

A
N

D
B

2

Y

5

3

6

9

4

7

10

/0

F
M

8

>

10

A

G

M

R

O
U
P

C
D

C
L

E
A

R

M

D

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A

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/
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ME

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MOR

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AND

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MP M

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A

K
L
L

R

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­6
1

3

S

In catalogs and on packaging, the letter added to the end
of the product name indicates the color of the A-933.
Specifications and operation are the same regardless of
color.

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Table of Contents

Introduction

Important Safety Instructions ....................................................................................2

Precautions..................................................................................................................3

Features .......................................................................................................................4

Supplied Accessories ................................................................................................. 4

Table of Contents ........................................................................................................ 5

Front & Rear Panels .................................................................................................... 6

Front Panel............................................................................................................ 6

Rear Panel............................................................................................................. 7

Remote Controller (RC-613S).....................................................................................8

Installing the Batteries ........................................................................................... 9

Using the Remote Controller ................................................................................. 9

Connections

Connecting the A-933 ...............................................................................................10

About the System Functions................................................................................ 10

Connecting Your Speakers.................................................................................. 11

Connecting a Subwoofer ..................................................................................... 12

Hookup Diagrams for Onkyo Separate Collection............................................... 13

Audio Components.............................................................................................. 14

Connecting a CD player................................................................................... 14

Connecting an MD Recorder............................................................................ 14

Connecting a Tuner.......................................................................................... 14

Connecting a Cassette Deck............................................................................ 14

Connecting a Turntable.................................................................................... 15

Connecting a TV or Other Component with an Audio Output .......................... 15

Connecting a Preamp ......................................................................................15

Connecting Another Component’s Power Cord ............................................... 15

Connecting Components ........................................................................... 16

Connecting the Power Cord............................................................................. 16

Enjoying Audio Sources

Turning on the A-933........................................................................................... 17

Listening to Components..................................................................................... 17

Selecting Speaker Set A or B........................................................................... 17

Muting the A-933 (remote controller only)........................................................ 18

Using Headphones........................................................................................... 18

Using the Tone Controls...................................................................................... 18

Selecting Tone or Direct Mode......................................................................... 18

Adjusting the Super Bass................................................................................. 18

Adjusting the Bass ...........................................................................................18

Adjusting the Treble ......................................................................................... 18

Using the MAIN IN Function................................................................................ 19

Recording ............................................................................................................ 19

Others

Troubleshooting ........................................................................................................ 20

Specifications ............................................................................................................ 22

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Front & Rear Panels

Front Panel

24 657

31

STANDBY/ON

ON(G)

STANDBY(R)

M D

LINE

C D

TUNER

PHONO

TAPE /CDR

POWER

ON

PHONES

OFF

SPEAKERS

SUPER BASS

BA

For detailed information, refer to the pages in parentheses.

POWER switch (17)

A

This is the main power switch. When set to OFF, the
A-933 is completely shutdown. When set to ON, the
A-933 can be set to On or Standby.

B

STANDBY/ON button (17)

This button is used to set the A-933 to On or
Standby. For models with a [POWER] switch, this
button has no effect unless the [POWER] switch is
set to ON.

C

STANDBY indicator (17)

This indicator lights up when the A-933 is in
Standby mode.

D

Remote control sensor (9)

This sensor receives control signals from the remote
controller.

E

Input selector (17)

This control is used to select from the following
input sources: PHONO, TUNER, CD, LINE, MD,
or TAPE/CDR.

Input selector indicator (17)

F

These indicators show the currently selected input
source.

VOLUME control (18)

G

This control is used to adjust the volume of the
A-933.

PHONES jack (18)

H

This phone jack is for connecting a standard pair of
stereo headphones for private listening.

SPEAKERS A/B buttons & indicators (17)

I

These buttons are used to select which speaker set,
A or B, outputs sound. The indicators show if each
speaker set is on or off.

BASS TREBLE

)

TO N E(R

MAX

DIRECT(G

MAIN IN

)

DCBA098

SUPER BASS control (18)

J

This control is for adjusting the level of very-low
bass sounds.

BASS control (18)

K

This control is for adjusting the level of bass
sounds.

TREBLE control (18)

L

This control is for adjusting the level of treble
sounds.

TONE(R)/DIRECT(G) button & indicator (18)

M

This button is used to select Tone mode or Direct
mode. The indicator lights up red (R) in Tone mode;
green (G) in Direct mode.

MAIN IN button & indicator (19)

N

When the A-933 is used as a power amplifier with a
separate preamp, this button is used to set the MAIN
IN function. The indicator lights up blue while the
MAIN IN function is on.

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Front & Rear Panels —Continued

Rear Panel

132546 8 97

GND

SUBWOOFER
PREOUT

PHONO (MM)

MAIN IN

LRL

R

TUNER

L

L

R

R

OUT

MD

L

R

CD

L

R

OUT

IN

TAPE/CDR

CBA0

Grounding terminal

A

This terminal is for connecting a turntable’s ground
wire.

B

PHONO (MM) input

This analog audio input is for connecting a turntable
with a moving-magnet cartridge.

C

TUNER input

This analog audio input is for connecting a tuner’s
analog audio output.

D

CD input

This analog audio input is for connecting a CD
player’s analog audio output.

E

LINE input

This analog audio input is for connecting a compo­nent’s analog audio output (TV, etc).

F

G

H

I

REMOTE CONTROL jacks

These (Remote Interactive) jacks can be con­nected to the jacks on your other Onkyo audio

components. The A-933’s remote controller can
then be used to control all of your components. To

use , you must make an analog audio connection
between the A-933 and each component.

SPEAKERS B

These terminal posts are for connecting speaker set
B.

SPEAKERS A

These terminal posts are for connecting speaker set
A.

AC OUTLET

This AC outlet can be used to supply power to
another audio component. The type of outlet
depends on the country in which you purchased the
A-933.

LINE

B

R

REMOTE

IN

CONTROL

SPEAKERS

L

R

INTEGRATED AMPLIFIER

-

MODEL NO. A

933

SUBWOOFER PREOUT

J

A

AC OUTLET

AC 230-240 V

50 Hz

L

UNSWITCHED

100W MAX.

TOTAL

CAUTION: SPEAKER IMPEDANCE

A or B : 4 OHMS MIN. /SPEAKER
A + B : 8 OHMS MIN. /SPEAKER

This jack is for connecting a powered subwoofer.

K

MAIN IN

This analog audio input is for connecting a separate
preamp when you want to use the A-933 as a power
amplifier.

Caution:

Do not connect a component that does not have an
output volume control, such as a CD player, because
the sound will be output at maximum volume and
may damage the A-933 and your speakers.

L

MD IN/OUT

This analog audio input and output are for connect­ing an MD recorder with an analog audio input and
output.

M

TAPE/CDR IN/OUT

This analog audio input and output are for connect­ing a recorder (CD, cassette, etc) with an analog
audio input and output.

See pages 11–16 for connection information

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Remote Controller (RC-613S)

1

ON

2

231

3

4

56

10/0>10

9

FM AM CLEAR

5

6

PRESET

7

8
9

MEMORY REPEAT DISPLAY

RANDOM P MODE SCROLL

0

For detailed information, refer to the pages in parenthe­ses.

STANDBY button (17)

A

This button is used to set the A-933 to Standby.

B

ON button (17)

This button is used to turn on the A-933.

C

Number buttons

These buttons are used to enter track numbers. To
enter a single-digit number, simply press the corre­sponding button. The [10/0] button is used to enter
either 10 or 0. The [>10] button is used when enter­ing 2-digit numbers above 10.
See the instruction manual supplied with each com­ponent for more information.

D

FM & AM buttons

These buttons are used to select AM or FM on an
Onkyo Separate Collection tuner that’s connected

via .

CD

MD

TAPE /CDR

VOLUME

MUTING

VOLUME

TIMER

ENTER

-

613

C

R

STANDBY

4

78

GROUP

PRESET

SLEEP

INPUT

CLOCK

CALL

S

A
B
C
D

E

F

G
H

I

J
K
L
M

Reverse & Fast Forward [ ]/[ ] buttons

E

These buttons are used for reverse and fast forward
on an Onkyo Separate Collection CD, MD, cassette,

or CDR component that’s connected via . On
some Onkyo tuners that’re connected via ,

they’re used to change the frequency.

F

VOLUME [ ]/[ ] buttons (18)

These buttons adjust the volume of the A-933.

TIMER, Up/Down [ ]/[ ] & ENTER buttons

G

These buttons set the clock and timer on an Onkyo
Separate Collection tuner that’s connected via .

H

MEMORY button

This button is used to set the memory playback
function on an Onkyo Separate Collection CD, MD,

or CDR component that’s connected via . With
memory playback, you can make a custom program.

RANDOM button

I

This button is used to set the random playback func­tion on an Onkyo Separate Collection CD, MD, or

CDR component that’s connected via .

P MODE button

J

This button sets the playback mode on an Onkyo
Separate Collection MD or CDR component that’s

connected via .

GROUP button

K

This button selects groups on an Onkyo Separate
Collection MD component that’s connected via .

L

CLEAR button

This button is used to remove the last track from the
memory function program, etc., on an Onkyo Sepa­rate Collection CD, MD, cassette, or CDR compo-

nent that’s connected via .

CD control buttons

M

These buttons are used to control an Onkyo Sepa­rate Collection CD player that’s connected via .

Pause [ ]: Pauses playback
Stop [ ]: Stops playback
Play [ ]: Starts playback

MD control buttons

N

These buttons are used to control an Onkyo Sepa­rate Collection MD player that’s connected via .

Pause [ ]: Pauses playback
Stop [ ]: Stops playback
Play [ ]: Starts playback

O

TAPE/CDR control buttons

For double cassette decks, only Deck B can be con­trolled.

Reverse Play/Pause [ / ]: Starts reverse

playback on an Onkyo Separate Collection cas­sette deck that’s connected via ; pauses play-

back on an Onkyo Separate Collection CDR.

Stop [ ]: Stops playback
Play [ ]: Starts playback

MUTING button (18)

P

This button is used to mute the A-933.

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Remote Controller (RC-613S) —Continued

Q

Previous & Next [ ]/[ ] (PRESET [ ]
[ ]) buttons

These buttons are used to select the previous or next
track on an Onkyo Separate Collection CD, MD,
cassette, or CDR component that’s connected via

. Pressing them repeatedly selects earlier or later
tracks. On an Onkyo Separate Collection tuner,
they’re used to select radio presets.

SLEEP button

R

This button is used to set the sleep function on an
Onkyo Separate Collection tuner that’s connected

via .

S

INPUT [ ]/[ ] buttons (17)

These buttons are used to select from the following
input sources: PHONO, TUNER, CD, LINE, MD,
or TAPE/CDR.

T

REPEAT button

This button is used to set the repeat playback func­tions on an Onkyo Separate Collection CD, MD, or

CDR component that’s connected via .

U

DISPLAY button

This button is used to change the information shown
on the display.

V

SCROLL button

This button is used to scroll text displayed on an
Onkyo Separate Collection MD or CDR component

that’s connected via .

CLOCK CALL button

W

This button is used to display the time on an Onkyo
Separate Collection tuner that’s connected via .

Installing the Batteries

Remove the battery
compartment cover, as
shown.

Insert the two supplied
batteries (AA/R6) in
accordance with the
polarity markings in
the battery compart­ment.

Notes:

• The supplied batteries should last for about six
months, although this will vary with usage.

• If the remote controller doesn’t work reliably, try
replacing the batteries.

• Don’t mix new and old batteries or different types of
batteries.

• If you intend not to use the remote controller for a long
time, remove the batteries to prevent damage from
leakage or corrosion.

• Expired batteries should be removed as soon as possi­ble to prevent damage from leakage or corrosion.

Using the Remote Controller

Point the remote controller toward the remote control
sensor.

Remote control sensor

O
N

1

S
T
A
N

D
B

2

Y

5

3

6

9

4

7

1

0
/
0

F
M

8

>

1
0

A

G

M

R
O

U
P

CD

C
L

E
A

R
M
D

TA

P
E

/
C
D

R
V
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L
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P

M

R

E

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S
E
T

M

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T
IN

G

P
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TI
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E

S

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L

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P

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Y

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RE
A
N

P

D

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A

MP

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P

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D

A

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S

C
R
O
L

L
C
L
O

C

C

A

K

LL

R

C

­6

1
3

S

Notes:

• The remote controller may not work reliably if the
A-933 is subjected to bright light, such as direct sun­light or inverter-type fluorescent lights. Keep this in
mind when installing.

• If another remote controller of the same type is used in
the same room, or the A-933 is installed close to
equipment that uses infrared rays, the remote control­ler may not work reliably.

• Don’t put anything, such as a book, on the remote con­troller, because the buttons may be pressed inadvert­ently, thereby draining the batteries.

• The remote controller may not work reliably if the
A-933 is installed in a rack behind colored glass doors.
Keep this in mind when installing.

• The remote controller will not work if there’s an obsta­cle between it and the A-933’s remote control sensor.

About 5 m

(16 feet)

Replace the battery
compartment cover.

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Connecting the A-933

About the System Functions

If you connect another component from the Onkyo Separate Collection to the A-933 with the appropriate and audio
cables, you can use the following system functions. cables are special cables solely for use with Onkyo products.
(No cables are supplied with the A-933.)

Connecting components from the Onkyo Separate Collection.

Auto Power On

When you turn on the power or start playback on a component that’s connected to the A-933, the A-933 will turn on
automatically. And when you set the A-933 to Standby, all connected components will go on Standby as well. (The
A-933’s POWER switch must be set to ON for this to work.)

Direct Change

When playback is started on an audio component connected via , the A-933 will automatically select that com­ponent as the input source.

Remote Control Operation

You can control all components in your system by using the
A-933’s remote controller.

Program Timer

With an Onkyo tuner, you can program its timer to automati­cally start playback or recording at a specific time.

One-touch CD Dubbing

If your system comprises a CD player and CDR, MD recorder,
or cassette deck, you can dub an entire CD simply with one
press of a button.

See page 13 for more information.

See page 16 for more information.

See the tuner’s instruction manual for
more information.

Dubbing Individual Tracks

If your system comprises a CD player and MD recorder or
CDR, you can dub your favorite CD tracks individually with
one press of a button.

Synchro Recording

When using a CDR, MD recorder, or cassette deck to record
from a CD player, you can start the recording process simply
by starting playback on the CD player.

• Simply connecting an cable will not enable the system functions. You must make an analog audio connection
between the A-933 and each component as well.

• See the instruction manual supplied with each component for more information about the system functions.

• When using the A-933 as a power amplifier (MAIN IN function), the system functions are unavailable.

See your MD recorder’s, CDR’s, or
cassette deck’s instruction manual for
more information.

10

*EnA93302.fm Page 11 Tuesday, January 25, 2005 1:46 PM

Connecting the A-933 —Continued

Before Making any Connections

•Always refer to the instructions that came with the
component that you are connecting.

• Do not plug in the power cord until all connec­tions have been properly made.

• Do not bind audio cables with power cords and
speaker cables. Doing so may adversely affect the
sound quality.

•To prevent interference, keep power cords and
speaker cables away from the tuner’s antenna.

Connecting Your Speakers

Speaker Connection Precautions

You can connect one or two sets of speakers (A/B) to
the A-933, and select which set outputs sound, or use
both sets at the same time.

• Connecting one set of speakers (A or B): Only con­nect speakers with an impedance of 4 ohms or more
but less than 16 ohms. If you use speakers with a
lower impedance, and use the A-933 at high volume
levels for a long period of time, the built-in protection
circuit may be activated.

• Connecting two sets of speakers (A and B): Only
connect speakers with an impedance of 8 ohms or
more but less than 16 ohms. If you use speakers with
a lower impedance, and use the A-933 at high volume
levels for a long period of time, the built-in protection
circuit may be activated.

• Disconnect the power cord from the wall outlet
before making any connections.

• Read the instructions supplied with your speakers.

•Pay close attention to speaker wiring polarity. In other
words, connect positive (+) terminals to only positive
(+) terminals, and negative (–) terminals to only nega­tive (–) terminals. If you get them the wrong way
around, the sound will be out of phase and will sound
unnatural.

• Unnecessarily long and very thin speaker cables may
affect the sound quality and should be avoided.

RCA Audio Connection Color Coding

• Red connectors are used for the right channel, and
white connectors are used for the left channel.

Left (white)

Right (red)

L

R

• Push each plug in all the way to make a good con­nection (loose connections can cause noise or mal­functions).

Right!

Wrong!

• Be careful not to short the
positive and negative wires.
Doing so may damage the
A-933.

• Don’t connect more than one
wire to each speaker terminal.
Doing so may damage the
A-933.

• Don’t connect a speaker to more than one pair of
speaker terminals.

SPEAKERS

B

L

R

R

A

L

11

O

*EnA93302.fm Page 12 Tuesday, January 25, 2005 1:46 PM

Connecting the A-933 —Continued

Connecting the Speaker Cables

Strip about 15 mm of insu-

1

lation from the ends of the
speaker cables, and twist
the bare wires tightly, as
shown.

Unscrew the terminal.

2

Fully insert the bare

3

wires.

Screw the terminal tight.

4

The following illustration shows which speaker should
be connected to each pair of terminals.

Right

speaker

Speaker set A

15 mm

Left

speaker

Connecting a Subwoofer

You can connect a subwoofer with a built-in power
amplifier to the A-933’s SUBWOOFER PREOUT jack.

LRL

R

TUNERPHONO (MM)

L

L

R

R

OUTINOUT

MD

L

R

LINE

CD

L

R

REMOTE

IN

CONTROL

TAPE/CDR

B

R

INTEGRATED AMPLIFIER

MODEL NO.

A

SPEAKERS

L

-

933

A

AC OUTLET

AC

230-240

V

50

Hz

L

R

UNSWITCHED

100

W MAX.

TOTAL

LINE INPUT

CAUTION: SPEAKER IMPEDANCE

A or B : 4

OHMS MIN. /SPEAKER

A + B : 8

OHMS MIN. /SPEAKER

LINE INPUT

GND

SUBWOOFER

SUBWOOFER

PREOUT

PREOUT

MAIN IN

SUBWOOFER
PRE OUT

Tip: The volume and quality of the bass output from

your subwoofer will depend on its position, the shape of
your listening room, and your listening position. In gen­eral, a good bass sound can be obtained by installing the
subwoofer in a front corner, or at one-third of the way
along the wall in front of your listening position. To find
the best position for your subwoofer, while playing a
movie or some music with good bass, experiment by
placing your subwoofer at various positions within the
room, and choose the one that provides the most satisfy­ing results.

NO (MM)

MAIN IN

LRL

R

TUNER

L

L

R

R

OUTINOUT

MD

CD

TAPE/CDR

+–

L

SPEAKERS

SPEAKERS

B

B

R

LINE

L

R

REMOTE

IN

CONTROL

R

R

INTEGRATED AMPLIFIER

MODEL NO. A

L

L

-

933

A

A

AC OUTLET

AC 230-240 V

50 Hz

L

L

R

R

UNSWITCHED

100W MAX.

TOTAL

CAUTION: SPEAKER IMPEDANCE

A or B : 4 OHMS MIN. /SPEAKER
A + B : 8 OHMS MIN. /SPEAKER

+–

A-933

+– +–

Right

speaker

Speaker set B

Left

speaker

12

*EnA93302.fm Page 13 Tuesday, January 25, 2005 1:46 PM

Connecting the A-933 —Continued

Hookup Diagrams for Onkyo Separate Collection

The A-933 can be used with the Onkyo Separate Collection C-733 CD Player and T-433 Tuner as shown below.

T-433

A-933

C-733

GND

SUBWOOFER
PREOUT

MAIN IN

LL

RR

ANALOG

OUT

To wall outlet

L

LRL

R

L

R

LINE

IN

REMOTE
CONTROL

REMOTE
CONTROL

B

R

CD

TUNERPHONO (MM)

L

L

R

R

OUT

OUT

IN

MD

TAPE/CDR

DIGITAL

OPTICAL

OUT

R

INTEGRATED AMPLIFIER

SPEAKERS

L

-

MODEL NO. A

933

CONPACT DISC PLAYER

MODEL NO.

A

AC OUTLET

AC 230-240 V

50 Hz

L

R

C-

733

UNSWITCHED

TOTAL

100W MAX.

CAUTION: SPEAKER IMPEDANCE

A or B : 4 OHMS MIN. /SPEAKER
A + B : 8 OHMS MIN. /SPEAKER

Connections

• No cables are included with the A-933. Use the
cables supplied with your other Onkyo Separate

Collection components.

• The jacks are used when the A-933 is combined

with other -compatible components from the
Onkyo Separate Collection.

• Some components have two or more jacks. These

jacks are all the same, and you can use any of them.

• Simply connecting an cable will not enable the

system functions. You must make an analog audio
connection between the A-933 and each compo­nent.

Stacking Components

• The illustration below shows how Onkyo Separate
Collection components can be stacked. The CD
player is sensitive to heat, so don’t put it on top of the
amplifier.

• Connection information is provided on the following
pages.

Ver tical stacking

T-433

A-933

C-733

13

*EnA93302.fm Page 14 Tuesday, January 25, 2005 1:46 PM

Connecting the A-933 —Continued

Audio Components

Connecting a CD player

Use an analog audio cable to connect the A-933’s CD
L/R jacks to the analog audio output jacks on the CD
player, as shown.

SUBWOOFER
PREOUT

LRL

R

TUNERPHONO (MM)

L

L

R

R

OUTINOUT

MD

CD

CD

TAPE/CDR

L

B

R

LINE

L

R

R

REMOTE

IN

CONTROL

INTEGRATED AMPLIFIER

MODEL NO. A

GND

MAIN IN

SPEAKERS

L

-

933

R

L

A

R

AC OUTLET

AC 230-240 V

CD

L

UNSWITCHED

TOTAL

CAUTION: SPEAKER IMPEDANCE

A or B : 4 OHMS MIN. /SPEAKER
A + B : 8 OHMS MIN. /SPEAKER

ANALOG

OUT

L

R

100W MAX.

50 Hz

Connecting an MD Recorder

Use an analog audio cable to connect the A-933’s MD
IN L/R jacks to the MD recorder’s analog audio output
jacks, and use another analog audio cable to connect the
A-933’s MD OUT L/R jacks to the MD recorder’s ana­log audio input jacks, as shown.

LRL

R

TUNERPHONO (MM)

L

L

L

R

R

R

OUTINOUT

OUT

MD

MD

L

R

LINE

CD

L

R

REMOTE

IN

IN

CONTROL

TAPE/CDR

B

R

INTEGRATED AMPLIFIER

MODEL NO. A

SPEAKERS

L

-

933

R

L

A

AC OUTLET

AC 230-240 V

50 Hz

L

UNSWITCHED

100W MAX.

TOTAL

R

OUT

CAUTION: SPEAKER IMPEDANCE

MD

A or B : 4 OHMS MIN. /SPEAKER
A + B : 8 OHMS MIN. /SPEAKER

IN

SUBWOOFER
PREOUT

GND

MAIN IN

Connecting a Tuner

Use an analog audio cable to connect the A-933’s
TUNER L/R jacks to the analog audio output jacks on
the tuner, as shown.

SUBWOOFER
PREOUT

L

LRL

R

R

TUNERPHONO (MM)

TUNER

L

L

R

R

OUTINOUT

MD

CD

TAPE/CDR

L

R

LINE

L

R

REMOTE

IN

CONTROL

B

R

INTEGRATED AMPLIFIER

MODEL NO. A

SPEAKERS

L

-

933

GND

MAIN IN

R

L

A

R

AC OUTLET

AC 230-240 V

TUNER

50 Hz

L

UNSWITCHED

100W MAX.

TOTAL

CAUTION: SPEAKER IMPEDANCE

A or B : 4 OHMS MIN. /SPEAKER
A + B : 8 OHMS MIN. /SPEAKER

OUT

L

R

Connecting a Cassette Deck

Use an analog audio cable to connect the A-933’s
TAPE/CDR IN L/R jacks to the cassette deck’s output
jacks, and use another analog audio cable to connect the
A-933’s TAPE/CDR OUT L/R jacks to the cassette
deck’s input jacks, as shown.

LRL

R

TUNERPHONO (MM)

L

L

R

R

OUTINOUT

MD

L

R

LINE

CD

L

L

R

R

REMOTE

OUT

IN

IN

CONTROL

TAPE/CDR

TAPE/CDR

B

R

INTEGRATED AMPLIFIER

MODEL NO. A

SPEAKERS

L

-

933

R

L

A

AC OUTLET

AC 230-240 V

50 Hz

L

UNSWITCHED

100W MAX.

TOTAL

R

OUT

TAPE/CDR

CAUTION: SPEAKER IMPEDANCE

A or B : 4 OHMS MIN. /SPEAKER
A + B : 8 OHMS MIN. /SPEAKER

IN

SUBWOOFER
PREOUT

GND

MAIN IN

14

L

R

REC PLAY

(IN) (OUT)

L

R

L

R

REC PLAY

(IN) (OUT)

L

R

*EnA93302.fm Page 15 Tuesday, January 25, 2005 1:46 PM

Connecting the A-933 —Continued

Connecting a Turntable

The A-933’s PHONO input jacks are for use with mov­ing-magnet (MM) type cartridges.
Use an analog audio cable to connect the A-933’s
PHONO L/R jacks to the audio output jacks on the turn­table, as shown.

LRL

L

R

R

CD

TUNERPHONO (MM)

L

L

R

R

OUTINOUT

MD

L

R

Ground wire

TAPE/CDR

L

R

L

R

LINE

IN

B

REMOTE
CONTROL

AUDIO OUT

R

INTEGRATED AMPLIFIER

MODEL NO. A

L

R

SPEAKERS

L

-

933

R

A

AC OUTLET

AC 230-240 V

50 Hz

L

UNSWITCHED

100W MAX.

TOTAL

CAUTION: SPEAKER IMPEDANCE

A or B : 4 OHMS MIN. /SPEAKER
A + B : 8 OHMS MIN. /SPEAKER

GND

GND

PHONO (MM)

SUBWOOFER
PREOUT

PHONO (MM)

MAIN IN

Notes:

• If the turntable has a ground wire, connect it to
A-933’s GND terminal. With some turntables, con­necting the ground wire may cause hum, in which
case it should be disconnected.

• If the turntable has a moving-coil (MC) type car­tridge, you’ll need a commercially available MC
phono preamp. In this case, connect the turntable to
the phono preamp’s input, and connect the phono
preamp’s output to the A-933’s PHONO L/R jacks.

Connecting a TV or Other Component with
an Audio Output

Use an analog audio cable to connect the A-933’s LINE
L/R jacks to the analog audio output jacks on the TV or
other component, as shown.

SUBWOOFER
PREOUT

L

LRL

R

TUNERPHONO (MM)

L

L

R

R

OUTINOUT

MD

CD

TAPE/CDR

L

R

R

LINE

LINE

L

R

REMOTE

IN

CONTROL

B

R

INTEGRATED AMPLIFIER

MODEL NO. A

SPEAKERS

L

-

933

GND

MAIN IN

R

L

A

R

AC OUTLET

LINE

AC 230-240 V

50 Hz

L

UNSWITCHED

100W MAX.

TOTAL

CAUTION: SPEAKER IMPEDANCE

A or B : 4 OHMS MIN. /SPEAKER
A + B : 8 OHMS MIN. /SPEAKER

AUDIO OUT

L

R

Connecting a Preamp

The A-933 can be used as a power amplifier with a sep­arate preamp.
In this case, use an analog audio cable to connect the
A-933’s MAIN IN jacks to the preamp’s output jacks.
Connect the speakers to the A-933, and connect the
playback components to the preamp.

LRL

R

TUNERPHONO (MM)

L

L

R

R

OUTINOUT

MD

L

R

LINE

CD

L

L

R

R

REMOTE

IN

CONTROL

TAPE/CDR

B

R

INTEGRATED AMPLIFIER

MODEL NO. A

SPEAKERS

L

-

933

R

MAIN IN

PRE OUT

GND

L

SUBWOOFER
PREOUT

R

MAIN IN

MAIN IN

L

R

Notes:

• Do not connect a component that does not have an
output volume control, because the sound will be out­put at maximum volume and may damage the A-933
and your speakers.

•To turn on the MAIN IN function, press the [MAIN
IN] button for 3 seconds until the indicator lights up
blue (page 19).

• When the A-933 is used as a power amplifier, the
remote controller and the following functions are dis-

abled: Volume control, Muting, system functions,
Tone/Direct function, subwoofer output, and Record­ing. Some of these functions can be performed on the
connected preamp.

Connecting Another Component’s Power
Cord

The A-933 has an AC OUTLET on its rear panel. This
can be used to connect the power cord of another audio
component that you intend to use with the A-933.

CD

OUT

TAPE/CDR

L

R

LINE

L

R

REMOTE

IN

CONTROL

B

R

INTEGRATED AMPLIFIER

MODEL NO. A

SPEAKERS

L

-

933

R

A

AC OUTLET

AC 230-240 V

50 Hz

L

UNSWITCHED

TOTAL

100W MAX.

CAUTION: SPEAKER IMPEDANCE

A or B : 4 OHMS MIN. /SPEAKER
A + B : 8 OHMS MIN. /SPEAKER

AC OUTLET

AC 230-240 V

UNSWITCHED

TOTAL

50 Hz

100W MAX.

A

L

Note:

If your TV has no audio output, you can connect the
A-933 to an audio output on your VCR and use its tuner.

Caution:

• Make sure that the maximum power requirement of
the component connected to the AC OUTLET does
not exceed the capacity printed on the A-933’s rear
panel (100W).

15

*EnA93302.fm Page 16 Tuesday, January 25, 2005 1:46 PM

Connecting the A-933 —Continued

Connecting Components

With (Remote Interactive), you can control your

-compatible Onkyo CD player, Tuner, and so on

with the A-933’s remote controller.

•To use , you must make an analog audio con­nection between the A-933 and each audio compo­nent.

Tuner (T-433) etc.

ACCUCLOCK TUNING PRESET

STANDBY/ON

DISPLAY

STANDBY

A-933 (Preamp)

STANDBY/ON

ON(G)

STANDBY(R)

POWER

PHONES

ON

OFF

O
N

S
T
A

N
D
B

Y

1

3

42

56

7

8

9

1
0
/
0

>
1
0

GR
OU

P

F
M

A
M

C
L

E
A

R
C
D

M
D

T
A
P

E
/
C

D
R

V

O
L
U

M
E

P
R
E

S
E
T

M
U
T
I
N

G

P
RE

S
E
T

V
O

L
U
M
E

S
L

E
E

P
T
I
M

E
R

E

N
T
E

R

M

E
M

O
RY

R

E
P
E
A
T

R
A

N
D
O

M

P

M
O
D
E

S

C
R
O
L

C
L

O
C

K
C
A

L

L

R

C

­6
1

3

S

CD Player (C-733) etc.

I
N
P

U
T

DI
S
P

L
A
Y

L

STANDBY/ON

DISPLAY

STANDBY

SPEAKERS

SUPER BASS BASS

BA

TUNER

MAX

CLEAR

FM MODE

BAND CHARACTERMEMORY

KEY MODE TUNING

/

PRESET

M D

LINE

/CDR

TAPE

D

C

PHONO

TREBLE

)

TONE(R

MAIN IN

)

DIRECT(G

Connecting the Power Cord

• Before connecting the power cord, connect all your
speakers and audio components.

•Turning on the A-933 may cause a momentary power
surge, which might interfere with other electrical
equipment on the same circuit. If this is a problem,
plug the A-933 into a different branch circuit.

To wall outlet

Notes:

• Push each plug in all the way to make a good connec­tion.

• Use only dedicated cables for connections.
(No cables are supplied with the A-933.)

• The A-933 has four jacks. They’re all the same,
so you can use any of them.

• jacks should be connected to only Onkyo compo­nents. Connecting them to another manufacturer’s
component may cause it to malfunction.

• Some components may not support all functions.
See the manuals supplied with your other Onkyo
components for more information.

16

*EnA93302.fm Page 17 Tuesday, January 25, 2005 1:46 PM

Enjoying Audio Sources

MD

Turning On the A-933

STANDBY/ON

STANDBY indicator

M D

LINE

SUPER BASS BASS

BA

C D

TUNER

PHONO

MAX

STANDBY/ON

POWER

ON(G)

STANDBY(R)

PHONES

ON

OFF

SPEAKERS

POWER

1

POWER

2

STANDBY/ON

Press the [POWER] button.

The STANDBY indicator lights up.

OFFON

Press the [STANDBY/ON] button.

Alternatively, press the remote control­ler’s [ON] button.
The A-933 turns on and the
STANDBY indicator lights up green.

Remote

controller

ON

Note:

When it’s turned on, the A-933 outputs
no sound for about five seconds. This
allows the circuits to stabilize.

To turn off the A-933, press the
[STANDBY/ON] button. The A-933
will enter Standby mode.

If the A-933 is connected to other components via

, press the remote controller’s [ON] button once
to turn on the A-933, and press it again to turn on the
other components.

Tu rning on all system components simultaneously:

You can set the A-933 so that all connected compo­nents are turned on with just one press of the remote con­troller’s [ON] button or the A-933’s [STANDBY/ON]
button. To do this, turn on the A-933, and then press and
hold the remote controller’s [ON] button for 16 seconds
until the A-933 switches to Standby mode. You will then
be able to turn on the A-933 and all system components
with just one press of the remote controller’s [ON] but­ton or the [STANDBY/ON] button on any system com­ponent.

Notes:

• The A-933 is shipped with the POWER switch in the

ON position ( ). When the power cord is connected
for the very first time, the A-933 will go on Standby,
and the STANDBY indicator will light up.

•To completely shut down the A-933, set the POWER

switch to the OFF position ( ).

ON

TAPE /CDR

231

56

TREBLE

10/0>10

9

FM AM CLEAR

CD

MD

TAPE /CDR

STANDBY

78

GROUP

)

TONE(R

MAIN IN

)

DIRECT(G

4

STANDBY

ON

Listening to Components

Input selector

STANDBY

LINE

C D

4

78

GROUP

PRESET

SLEEP

M D

TREBLE

Volume

TAPE /CDR

)

TONE(R

MAIN IN

)

DIRECT(G

MUTING

SPEAKERS A, B

SPEAKERS

ON

56

9

SUPER BASS BASS

BA

FM AM CLEAR

PRESET

231

10/0>10

TAPE /CDR

VOLUME

MUTING

VOLUME

TIMER

ENTER

TUNER

PHONO

MAX

CD

MD

STANDBY/ON

ON(G)

STANDBY(R)

POWER

ON

OFF

VOLUME

/

PHONES

Selecting Speaker Set A or B

You can select which set of speakers outputs sound, or
you can use both sets at the same time.

To output sound from the speakers connected to the
SPEAKERS A terminals, press the SPEAKERS [A]
button. The indicator above that button will light up. If a
subwoofer is connected, that too will output sound.
To output sound from the speakers connected to the
SPEAKERS B terminals, press the SPEAKERS [B]
button. The indicator above that button will light up. If a
subwoofer is connected, that too will output sound.
To output sound from all connected speakers, press the
SPEAKERS [A] and SPEAKERS [B] button so that
both indicators are on.

1

M D

LINE

C D

TUNER

PHONO

Turn the input selector to select
the component that you want to
listen to.

TAPE /CDR

TAPE/CDR : Select to hear the compo-

nent connected to the TAPE/CDR IN
jacks.

: Select to listen to the component

connected to the MD IN jacks.

LINE: Select to listen to the compo-

nent connected to the LINE jacks.

CD: Select to listen to the component

connected to the CD jacks.

TUNER: Select to listen to the compo-

nent connected to the TUNER jacks.

PHONO: Select to listen to the turnta-

ble connected to the PHONO jacks.

17

*EnA93302.fm Page 18 Tuesday, January 25, 2005 1:46 PM

Enjoying Audio Sources —Continued

2

3

A-933

Start playback on the selected
component.

To adjust the volume, use the
A-933’s Volume control, or the
remote controller’s VOLUME

[ ]/[ ] buttons.

Turn VOLUME control clockwise to

Remote

controller

VOLUME

VOLUME

increase the volume or counterclock­wise to decrease the volume.

Muting the A-933 (remote controller only)

You can temporarily mute the output of the A-933.

1

MUTING

Press the remote controller’s
[MUTING] button.

The A-933 is muted, and the
STANDBY indicator flashes green.

To unmute the A-933, press the
[MUTING] button again.

Notes:

• The Mute function will be cancelled
if the remote controller’s VOLUME
buttons are pressed or the A-933 is
set to Standby.

• When using the A-933 as a power
amplifier (MAIN IN function), the
Muting function has no effect.

Using Headphones

You can connect a pair of stereo headphones (1/4-inch
phone plug) to the A-933’s PHONES jack for private
listening.

STANDBY/ON

ON(G)

STANDBY(R)

PHONES

POWER

PHONES

ON

OFF

SPEAKERS

SUPER BASS

BA

Notes:

•Always turn down the volume before connecting your
headphones.

• All connected speakers are turned off while the head­phones plug is inserted in the PHONES jack.

• The headphones output no sound while the MAIN IN
function is on.

Using the Tone Controls

While the MAIN IN function is on, the A-933’s tone
controls have no effect.

TONE(R)/DIRECT (G)

M D

LINE

TAPE /CDR

SUPER BASS BASS

BA

TUNER

PHONO

MAX

C D

TREBLE

BASS

SUPER BASS

)

TONE(R

MAIN IN

)

DIRECT(G

TREBLE

DIRECT(G)

BASS

TREBLE

TONE(R)

MAX

STANDBY/ON

ON(G)

STANDBY(R)

POWER

PHONES

ON

OFF

SPEAKERS

SUPER BASS

Selecting Tone or Direct Mode

The [TONE(R)/DIRECT(G)] button is
used to select Tone or Direct mode.
In Tone mode, the tone controls can be
used to adjust the sound, and the
TONE/DIRECT indicator lights up red
(R).
In Direct mode, the tone controls are bypassed, so you
can enjoy a pure sound. The TONE/DIRECT indicator
lights up green (G).

Adjusting the Super Bass

The SUPER BASS control
adjusts very-low bass sounds.
Turn it up to make them louder.
Normally, it should be fully
turned down.

Adjusting the Bass

The BASS control adjusts bass
sounds. Turn it up to make them
louder. Turn it down to make them
quieter. Normally, it should be set
midway.

Adjusting the Treble

The TREBLE control adjusts treble
sounds. Turn it up to make them
louder. Turn it down to make them
quieter. Normally, it should be set
midway.

18

TUNER

PHONO

C D

M D

TAPE /CDR

LINE

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Enjoying Audio Sources —Continued

Using the MAIN IN Function

You can use the A-933 as power amplifier with a sepa­rate preamp. See page 15 for connection information.

M D

LINE

TAPE /CDR

SUPER BASS BASS

BA

C D

TUNER

PHONO

TREBLE

)

TONE(R

MAIN IN

MAX

)

DIRECT(G

MAIN IN

1

MAIN IN

STANDBY/ON

ON(G)

STANDBY(R)

POWER

PHONES

OFF

ON

SPEAKERS

Press the [MAIN IN] button for 3
seconds until the MAIN IN indica­tor lights up.

The MAIN IN function comes on and
the MAIN IN indicator lights up blue.

While the MAIN IN function is on,
only audio from components con­nected to the preamp can be output.

To turn the MAIN IN function off,
press the [MAIN IN] button for 3 sec­onds until the MAIN IN indicator goes
off.

Notes:

• Do not connect a component that
does not have an output volume con­trol to the MAIN IN jacks and use the
MAIN IN function, because the
sound will be output at maximum
volume and may damage the A-933
and your speakers.

• While the MAIN IN function is on,
the A-933’s Volume control has no
effect. Before you turn off the
MAIN IN function, make sure that
the Volume control is not turned up
high, to prevent any loud surprises.

• While the MAIN IN function in on,
the remote controller and the follow­ing A-933 functions are disabled:

Volume control, Muting, system
functions, Tone/Direct function, sub­woofer output, and Recording. Some
of these functions can be performed
on the connected preamp.

Recording

Unless you have the full consent of the
copyright holder, copyright laws prohibit
using your recordings for anything other
than personal enjoyment!

Input selector

M D

LINE

TAPE /CDR

SUPER BASS BASS

BA

C D

TUNER

PHONO

TREBLE

)

TONE(R

MAIN IN

MAX

)

DIRECT(G

STANDBY/ON

ON(G)

STANDBY(R)

POWER

PHONES

ON

OFF

SPEAKERS

1

Use the input selector to select
the component that you want to
record from.

2

Prepare the recorder:

• Set the recorder so that it’s ready for
recording.

• If necessary, adjust the recording
level on the recorder.

• See the recorder’s manual for more
information.

3

Start playback on the component
selected in step 1.

Note:

If you select another input source dur­ing recording, the newly selected input
source will be recorded.

Notes:

•You can record on a recorder that’s connected to the
MD OUT or TAPE/CDR OUT L/R jacks.

• The tone controls have no effect on the signal being
recorded.

• When using the A-933 as a power amplifier (MAIN
IN function), recording is not possible.

•For information on one-touch CD dubbing, individual
CD track dubbing, and timed recording with Onkyo
Separate Collection components, see page 10.

19

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Troubleshooting

If you have any trouble using the A-933, look for a solution here. If you can’t resolve the issue yourself, contact your
Onkyo dealer.

Power

Can’t turn on the A-933.

• Make sure that the power cord is properly plugged into the wall outlet.

• Unplug the power cord from the wall outlet, wait five seconds or more, then plug it in again.

• By default, pressing the A-933’s [STANDBY/ON] button once does not turn on all of the system components. You
need to press the remote controller’s [ON] button again. Alternatively, you can set the A-933 so that all components
do turn on simultaneously (page 17).

The STANDBY indicator is flashing red.

• The amp protection circuit has been activated. Remove the power cord from the wall outlet immediately and contact
your Onkyo dealer.

Audio

There’s no sound or it’s very quiet.

• When the A-933 is used as a power amplifier (MAIN IN indicator lights up blue), the sound from components con­nected to the preamp are output. To output the sound from a component that’s connected to the A-933, or to use the
A-933 as a preamp, press the [MAIN IN] button for 3 seconds until the MAIN IN indicator goes off.

• Make sure that all audio plugs are pushed in all the way (page 11).

• Make sure that the inputs and outputs of all components are connected properly.

• Make sure that the polarity of the speaker cables is correct and that the bare wires are in contact with the metal part
of each speaker terminal (page 12).

• Make sure that the correct input source is selected (page 17).

• If the STANDBY indicator is flashing green, press the remote controller’s [MUTING] button to unmute the A-933
(page 18).

• Make sure that none of the cables are bent, twisted, or damaged.

• Make sure that SPEAKERS A or B are selected. When only SPEAKERS A is selected (A indicator on), speakers
connected to the SPEAKERS A terminals, and a connected subwoofer will output sound. When only SPEAKERS B
is selected (B indicator on), speakers connected to the SPEAKERS B terminals, and a connected subwoofer will
output sound.

•To use a turntable with a moving-coil (MC) type cartridge, you need a commercially available MC phono preamp
(page 15).

Noise can be heard.

• Using cable ties to bundle audio cables with power cords, speaker cables, and so on may degrade the audio perfor­mance, so don’t bundle them together.

• An audio cable may be picking up interference. Try repositioning your cables.

The tone controls don’t work.

• If the TONE/DIRECT indicator is green, Direct mode is selected and the tone controls have no effect. Press the
[TONE/DIRECT] button to select Tone mode. The TONE/DIRECT indicator will turn red (page 18).

Remote Controller

The remote controller doesn’t work.

• Make sure that the batteries are installed with the correct polarity (page 9).

• Install new batteries. Don’t mix different types of batteries or old and new batteries (page 9).

• Make sure that the remote controller is not too far away from the A-933 and that there’s no obstruction between the
remote controller and the A-933’s remote control sensor (page 9).

• Make sure that the A-933 is not subjected to direct sunshine or inverter-type florescent lights. Relocate if necessary
(page 9).

• If the A-933 is installed in a rack or cabinet with colored glass doors, the remote controller may not work reliably
when the doors are closed (page 9).

Can’t control other components?

• If it’s an Onkyo component, make sure that the cable and analog audio cable are connected properly. Connecting
only an cable won’t work.

20

*EnA93302.fm Page 21 Tuesday, January 25, 2005 1:46 PM

Troubleshooting —Continued

Recording

Can’t record.

• The component connected to the MAIN IN jacks cannot be recorded.

• When using the A-933 as a power amplifier (MAIN IN function), recording is not possible.

Others

The VOLUME control doesn’t work.

• When using the A-933 as a power amplifier (MAIN IN function), the Volume control has no effect. Adjust the volume
on the connected preamp instead.

The Muting function doesn’t work.

• When using the A-933 as a power amplifier (MAIN IN function), the Muting function does not work. Use the muting
function on the connected preamp instead.

The A-933 contains a microcomputer for signal processing and control functions. In very rare
situations, severe interference, noise from an external source, or static electricity may cause it to
lock up. In the unlikely event that this happens, unplug the power cord from the wall outlet, wait at
least five seconds, and then plug it back in again.

Onkyo is not responsible for damages (such as CD rental fees) due to unsuccessful recordings
caused by the unit’s malfunction. Before you record important data, make sure that the material
will be recorded correctly.

To reset the A-933 to its factory defaults, with it turned on, while holding down the [MAIN IN]
button, press the [STANDBY/ON] button. The input selector indicators light up briefly, and then the
A-933 enters Standby mode.

21

*EnA93302.fm Page 22 Tuesday, January 25, 2005 1:46 PM

Specifications

1

Power output:
Dynamic power:

THD (total harmonic distortion):
Damping factor : 25 (Front, 1 kHz, 8 Ω )
Input sensitivity and impedance:

Output level and impedance:
Phono overload:
Frequency response:
Tone control:

SN ratio:

Speaker impedance:

Power supply:
Power consumption:
Stand-by power consumption:
Dimensions (W × H × D):
Weight:

80 W + 80 W (8 Ω , 1 kHz, DIN)
270 W + 270 W (3 Ω , Front)
220 W + 220 W (4 Ω , Front)
110 W + 110 W (8 Ω , Front)

0.08% (1 kHz, 1 W)

200 mV, 50 k Ω (LINE)

2.5 mV, 50 k Ω (PHONO MM)
200 mV, 2.2 k Ω (REC OUT)
130 mV (MM, 1 kHz, 0.5%)
10 Hz–60 kHz, +1 dB–3 dB (CD)
+8 dB, –8 dB, 100 Hz (BASS)
+8 dB, –8 dB, 20 kHz (TREBLE)
+10 dB, 80 Hz (SUPER BASS)
100 dB (LINE, IHF-A)
70 dB (PHONO, IHF-A)
4–16 Ω

AC 230-240 V, 50 Hz
100 W

0.9 W
275 × 103 × 328 mm

7.5 kg

Analog inputs:
Analog outputs:
Subwoofer pre outputs:
Speaker outputs:
Phones:

Specifications and features are subject to change without notice.

PHONO, TUNER, CD, LINE, MD, TAPE/CDR, MAIN IN
MD, TAPE/CDR

2 (A, B)
1

22

*EnA93302.fm Page 23 Tuesday, January 25, 2005 1:46 PM

23

*EnA93302.fm Page 24 Tuesday, January 25, 2005 1:46 PM

Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN
Tel: [phone] Fax: [phone]

ONKYO U.S.A. CORPORATION

18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.
Tel: [phone] Fax: [phone] http://www.us.onkyo.com/

ONKYO EUROPE ELECTRONICS GmbH

Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY
Tel: [phone] Fax: [phone] http://www.eu.onkyo.com/

ONKYO EUROPE UK Office

Suite 1, Gregories Court, Gregories Road, Beaconsfield, Buckinghamshire, HP9 1HQ
UNITED KINGDOM Tel: [phone] Fax: [phone]

ONKYO CHINA LIMITED

Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung,
N.T., HONG KONG Tel: [phone] Fax: [phone]
http://www.ch.onkyo.com/

SN 29343979

(C) Copyright 2005 ONKYO CORPORATION Japan. All rights reserved.

24

HOMEPAGE

http://www.onkyo.com/

Printed in Japan

I0501-1

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