Yamaha A-S2000 User Manual

Stereo Amplifier

Amplificateur Stéréo

UCAB

OWNER’S MANUAL
MODE D’EMPLOI

HiFi Began with Yamaha

Yamaha’s involvement with and passion for music goes back
more than a century, to when we built our first reed organ in

1887. Now we are the world’s leading producer of pianos and
other musical instruments, and are involved with music in many
other ways as well. We manufacture professional recording
equipment, we design concert halls and we assist artists at
concerts with set up and sound tuning.

This knowledge and experience benefits our production of
audio components in many ways. We introduced our first HiFi
(High Fidelity) turntable in 1954. Thereafter we were one of the first
to offer mass-produced, high quality audio equipment,
and introduced many legendary stereo components.

We hope you enjoy the genuine HiFi experience of
Yamaha Natural Sound.

Excellence in Audio Achievement

First HiFi System introduced in 1920
We introduced numerous HiFi components

(turntables, FM/AM tuners, integrated
amplifiers, preamplifiers, power amplifiers
and speakers) in 1955 - 1965.

Natural Sound Speaker Series introduced
in 1967

NS-20 Monitor Speaker

CA-1000 Integrated Amplifier

Featuring A-Class operation, the CA-1000 set
the standard for integrated amplifiers.

NS-690 Monitor Speaker
NS-1000M Monitor Speaker

A truly legendary speaker still revered by HiFi
enthusiasts.

B-1 Power Amplifier

An innovative power amp that used FETs in all
stages.

C-2 Control Amplifier

Received top prize at the Milan International Music
and HiFi Show.

NS-10M Studio Monitor Speaker

Became of the most popular studio monitors
in the world.

A-1 Integrated Amplifier
PX-2 Turn ta bl e

Yamaha’s first straight arm turntable.

B-6 Power Amplifier

Pyramid-shaped power amplifier.

GT-2000/L Turn t ab le
First CD Player (CD-1) introduced in 1983

B-2x Power Amplifier
MX-10000 Power Amplifier and

CX-10000 Control Amplifier

Redefined the capabilities of separate components.

AX-1 Integrated Amplifier

GT-CD1 CD Player
MX-1 Power Amplifier and

CX-1 Preamplifier

Soavo-1 and Soavo-2 Natural Sound

Speaker Systems

A-S2000 Stereo Amplifier and
CD-S2000 Super Audio CD Player

◆ Full floating and balanced circuit design achieves for the first time the
full potential of analogue amplification

An entirely new floating and balanced power amp achieves complete symmetry and permits full balanced transmission
(amplification) from the input jack to just before the speaker jack

◆ Full-stage balanced signal transmission

The world’s first integrated amp to offer full stage balanced transmission, combining high power output with good sound
texture and outstanding S/N performance

◆ Floating and balanced power amp

◆ Fully balanced control amp

◆ Fully balanced digital volume and tone controls

◆ Four large capacity power supplies

◆ Symmetrical construction

◆ Headphone amp for low impedance drive

■ Supplied accessories

Please check that you have received all of the following parts.

• Remote control

• Batteries (AA, R6, UM-3) (×2)

• Power cable

• Safety brochure

Contents

Controls and functions.......................................................................................................................................... 6

Connections.......................................................................................................................................................... 14

Specifications ....................................................................................................................................................... 20

Troubleshooting................................................................................................................................................... 24

■ About this manual

• y indicates a tip for your operation.

• This manual is printed prior to production. Design and specifications are subject to change in part as a result of improvements, etc. In

case of differences between the manual and the product, the product has priority.

• The color of images in this manual may vary from the original.

• Read the safety brochure before using this unit.

4 En

Controls and functions

In this chapter, you will learn the controls and functions of A-S2000.

5 En

Controls and functions

■ Front panel (left side)

BASS

ON

OFF

1 POWER

Press upward or downward to turn on or off this unit.

y

The POWER indicator above lights up when this unit is turned
on.

Notes

• If the POWER indicator flashes when you turn on this unit,

disconnect the AC power cable and contact the nearest
authorized Yamaha dealer or service center (see page 24).

• When you turn on this unit, there will be a few second delay

before this unit can reproduce sound.

-

SPEAKERSTRIMPHONESPOWER

0

+6

-6

dB

A

OFF

B

+12

A+B
BI-WIRING

+

41325

2 Remote control sensor

Receives signals from the remote control.
The remote control transmits a directional infrared beam.
Be sure to aim the remote control directly at the remote
control sensor on the front panel of this unit during
operation.

6 En

Approximately 6 m (20 ft)

30 30

TREBLE

BALANCE

LINE 2

LINE 1

CD BAL

VOLUMEINPUT

CD

TUNER

MAIN DIRECT

-

RL+

MM

MC

3 PHONES jack

Outputs audio for private listening with headphones.

Note

When headphones are plugged in:
– Both speaker sets connected to the SPEAKERS L/R CH A

and B terminals are turned off.

– No signals are output at the PRE OUT jacks, while signals are

output at the REC jacks.
– You cannot select MAIN DIRECT as the input source.
– If headphones are plugged into the PHONES jack while

MAIN DIRECT is selected as the input source, no audio is

output at the PHONES jack.

4 TRIM

Adjusts the volume level when headphones are plugged in
to avoid sudden changes in volume.
Choices: –6 dB, 0 dB, +6 dB, +12 dB

PHONO

AUDIO MUTEPHONO

5 SPEAKERS

Turns on or off the speaker set connected to the
SPEAKERS L/R CH A and/or B terminals on the rear
panel.

• Switch to the OFF position to turn off both speaker
sets.

• Switch to the A or B position to turn on the speaker set
connected to the SPEAKERS L/R CH A or B
terminals.

• Switch to the A+B BI-WIRING position to turn on
both speaker sets.

Caution

If you use two sets (A and B), the impedance of each speaker
must be 8 Ω or higher.

7 En

English

Controls and functions

■ Front panel (right side)

BASS

ON

OFF

6 BASS

Increases or decreases the low frequency response. The 0
position produces a flat response.
Control range: –10 dB to +10 dB

7 TREBLE

Increases or decreases the high frequency response. The 0
position produces a flat response.
Control range: –10 dB to +10 dB

Notes

• When both the BASS and TREBLE controls are set to the 0
position, audio signal bypasses the tone control circuitry.

• The BASS and TREBLE controls do not affect the signals input
at the MAIN DIRECT jacks and signals output at the REC OUT
jacks.

-

SPEAKERSTRIMPHONESPOWER

0

+6

-6

dB

A

OFF

B

+12

A+B
BI-WIRING

+

6

8 BALANCE

Adjusts the audio output balance of the left and right
speakers to compensate for sound imbalances caused by
speaker locations or listening room conditions.

Note

The BALANCE control does not affect the signals input at the
MAIN DIRECT jacks and signals output at the REC OUT jacks.

9 PHONO

Selects the type of magnetic cartridge of the turntable
connected to the PHONO jacks on the rear panel.

• Press upward to the MM position when the connected
turntable has a moving magnet (MM) cartridge.

• Press downward to the MC position when the
connected turntable has a moving coil (MC) cartridge.

• When you replace the cartridge, be sure to turn off this
unit.

8 En

TREBLE

BALANCE

LINE 2

LINE 1

CD BAL

VOLUMEINPUT

CD

TUNER

MAIN DIRECT

-

RL+

MM

MC

0 INPUT selector

Selects the input source you want to listen to.
The audio signals of the selected input source are also
output at the REC jacks.

Notes

• Switch to the CD BAL position to select the CD player
connected to the CD BAL jacks (balanced XLR jacks).

• Switch to the CD position to select the CD player connected to
the CD jacks (unbalanced RCA jacks).

• Switch to the MAIN DIRECT position to select the component
connected to the MAIN IN jacks. When MAIN DIRECT is
selected as the input source, no signals are output at the PRE
OUT, REC, and PHONES jacks.

PHONO

AUDIO MUTEPHONO

BA9087

A AUDIO MUTE

Press downward to reduce the current volume level by
approximately 20 dB. Press again to restore the audio
output to the previous volume level.

y

• The AUDIO MUTE indicator lights up while the mute function
is on.

• You can also rotate VOLUME on the front panel or press
VOL +/– on the remote control to resume the audio output.

B VOLUME

Controls the volume level. This does not affect the REC
level.

Note

The VOLUME control does not affect when you select MAIN
DIRECT as the input source. Adjust the volume level using the
volume control on the external amplifier connected to the MAIN
DIRECT jacks.

9 En

English

Controls and functions

■ Rear panel

1 23

A

CD
BAL

CD

B

PHONO

See page 14 for connection information.

1 SPEAKERS L/R CH terminals

2 INPUT jacks

3 LINE2 jacks

4 MAIN IN jacks

Note

Adjust the volume level using the volume control on the external
amplifier connected to the MAIN DIRECT jacks when you select
MAIN DIRECT as the input source.

INPUTSPEAKERS R CH

R

L

LR

GND

LINE2

5 PRE OUT jacks

Notes

• When you connect audio pin plugs to the PRE OUT jacks to
drive the speakers using an external amplifier, it is not
necessary to use the SPEAKERS L/R CH terminals.

• The signal output at the PRE OUT jacks are affected by the tone
control settings.

• The PRE OUT jacks output the same channel signal as the
SPEAKERS L/R CH terminals.

• When you use a subwoofer, connect it to the PRE OUT jacks
and speakers to the SPEAKERS L/R CH terminals.

RECPBLINE 1TUNER

L

R

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5 1 7

64

SPEAKERS L CH

PRE OUTMAIN IN

L

R

A

B

6 AC IN

Use this inlet to plug in the supplied power cable.

7 VOLTAGE SELECTOR

(Asia and General models only)

The VOLTAGE SELECTOR on the rear panel of this unit
must be set for your local main voltage BEFORE plugging
the AC power cable into the AC wall outlet. Improper
setting of the VOLTAGE SELECTOR may cause damage
to this unit and create a potential fire hazard.
Rotate the VOLTAGE SELECTOR clockwise or
counterclockwise to the correct position using a straight
slot screwdriver.

Voltages are as follows:
AC 110/120/220/230–240 V, 50/60 Hz

VOLTAGE SELECTOR

230­240V

AC IN

8

8 Foot

The feet of this unit include built-in spikes. Using the
spikes can reduce the effect of vibrations on the set. When
using the spikes, remove the magnet foot by pulling it.

Spike

Caution

When using the feet’s built-in spikes, the spikes may scratch the
shelf or floor on which this unit is installed. Use the supports
when placing this unit on expensive furniture, etc.

y

If this unit is unstable, you can adjust the foot height by rotating
it.

English

11 En

Controls and functions

■ Remote control

1

A/B/C/D/E

2

PRESET

4 Amplifier control buttons

INPUT /

Selects the input source you want to listen to.

Notes

• When MAIN DIRECT is selected as the input source, no
signals are output at the PRE OUT and REC jacks.

• If headphones are plugged into the PHONES jack while MAIN
DIRECT is selected as the input source, no audio is output at
the PHONES jack.

VOL +/–

Controls the volume level.

3

VOL

4

MUTE

VOL

INPUTINPUT

1 Infrared signal transmitter

Outputs infrared control signals.

2 Yamaha tuner control buttons

Control functions of Yamaha tuner. Refer to the owner’s
manual of your tuner for details.

Note

Some components may not be controlled by this remote control.

3 Yamaha CD player control buttons

Control various functions of Yamaha CD player. Refer to
the owner’s manual of your CD player for details.

y

Press once to pause and twice to stop playback.

Note

Some components may not be controlled by this remote control.

Note

The VOLUME control does not affect when you select MAIN
DIRECT as the input source. Adjust the volume level using the
volume control on the external amplifier connected to the MAIN
DIRECT jacks.

MUTE

Reduces the current volume level by approximately 20
dB. Press again to restore the audio output to the previous
volume level.

y

You can also press VOL +/– to resume the audio output.

■ Installing batteries in the remote control

1

3

2

1 Press the part and slide the battery

compartment cover off.

2 Insert the two supplied batteries

(AA, R6, UM-3) according to the polarity
markings (+ and –) on the inside of the
battery compartment.

3 Slide the cover back until it snaps into place.

12 En

Connections

In this section, you will make connections between A-S2000, speakers,
and source components.

Connections

LINE2

PRE OUTMAIN IN

RECPBLINE 1TUNER

GND

L

R

LR

PHONO

CD

CD
BAL

INPUTSPEAKERS R CH

A

B

L

R

Speakers A
(R channel)

+

-

CD player with

RCA jacks

CD player with

XLR jacks

Tuner

+

-

Speakers B
(R channel)

Caution

• Do not let the bare speaker wires touch each other or do not let
them touch any metal part of this unit. This could damage this
unit and/or the speakers.

• All connections must be correct: L (left) to L, R (right) to R,
“+” to “+”, and “–” to “–”. If the connections are faulty, no
sound will be heard from the speakers, and if the polarity of the
speaker connections is incorrect, the sound will be unnatural
and lack bass. Also, refer to the owner’s manual for each of
your components.

14 En

Ground

Tur nt ab le

DVD player,

etc.

• Use RCA unbalanced cables to connect other components
except speakers. Use “male” XLR balanced cables to connect a
CD player with XLR balanced output jacks to the CD BAL
jacks of this unit.

• Connect your turntable to the GND terminal to reduce noise in
the signal. However, you may hear less noise without the
connection to the GND terminal for some record players.

Preamplifier,

+

–

+

–

L

R

+

–

+

–

L

R

AV receiver, etc.

External amplifier or

active subwoofer

-

Speakers A
(L channel)

+

INPUT

L

L

GND

LINE2

RECPBLINE 1TUNER

PRE OUTMAIN IN

L

R

SPEAKERS L CH

A

B

AC IN

+–

Speakers B
(L channel)

CD recorder,

tape deck, etc.

Caution

• Because the power amplifier of A-S2000 is of the floating
balanced type, the following types of connections are not
possible.
– Connecting with the left channel “–” terminal and the right

channel “–” terminal as well as “+” terminals (Fig. 1).

– Deliberately connecting with the left/right channel “–”

terminals and metal part on the rear panel of this unit, as well
as accidentally touching them.

– Connecting with the left channel “–” terminal and the right

channel “–” terminal inverted (cross connection, Fig. 2).

• Do not connect your active subwoofer to the SPEAKERS
terminal. Connect it to the PRE OUT jacks of this unit.

Fig. 1 Fig. 2

+

L

–

–

R

+

+

L

–

–

R

+

English

15 En

Connections

■ Connecting the speakers

1 Remove approximately 10 mm (0.4 in) of

insulation from the end of each speaker
cable and twist the exposed wires of the
cable together to prevent short circuits.

10 mm (0.4 in)

2 Unscrew the knob and then insert the bare

wire into the hole.

3 Tighten the knob.

■ Connecting the banana plug

(Except for Europe models)

First, tighten the knob and then insert the banana
plug into the end of the corresponding terminal.

Banana plug

■ Connecting the Y-shaped lug

1 Unscrew the knob and then sandwich the Y-

shaped lug between the ring part and base.

Y-shaped lug

Slide

2 Tighten the knob.

16 En

■ Bi-wire connection

The bi-wire connection separates the woofer from the
combined midrange and tweeter section. A bi-wire
compatible speaker has four binding post terminals. These
two sets of terminals allow the speaker to be split into two
independent sections. This split connects the mid and high
frequency drivers to one set of terminals and the low
frequency driver to the other pair.

■ Connecting to the CD BAL jacks

Connect your CD player with the XLR balanced output
jacks. The pin assignments for these jacks are shown
below. Refer to the owner’s manual supplied with your
CD player and verify that its XLR balanced output jacks
are compatible with the pin assignments.

Caution

To use the bi-wire connections, the impedance of each speaker
must be 8 Ω or higher.

Notes

• Remove the shorting bars or bridges to separate the LPF (low
pass filter) and HPF (high pass filter) crossovers.

• To use the bi-wire connections, switch the SPEAKERS selector

to the A+B BI-WIRING position.

1: ground2: hot

3: cold

When connecting, be sure to match the pins and insert the
connector of the “male” XLR balanced cable until you
hear a “click”. When disconnecting, pull out the “male”
XLR balanced cable while holding down the lever of the
CD BAL jacks.

“Female” XLR connector

“Male” XLR connector

Note

To use the XLR balanced connection, you must switch the
INPUT selector on the front panel to the CD BAL position.

17 En

English

Connections

■ VOLTAGE SELECTOR
(Asia and General models only)

Caution

The VOLTAGE SELECTOR on the rear panel of this unit
must be set for your local voltage BEFORE plugging the
power cable into the AC wall outlet. Improper setting of
the VOLTAGE SELECTOR may cause damage to this
unit and create a potential fire hazard.
Rotate the VOLTAGE SELECTOR clockwise or
counterclockwise to the correct position using a straight
slot screwdriver.

Voltages are as follows:

........................ AC 110/120/220/230–240 V, 50/60 Hz

VOLTAGE SELECTOR

230­240V

Vol ta ge
indication

■ Connecting the power cable

Plug the power cable into the AC IN connector when all
connections are complete, and then plug in the power
cable to the AC outlet.

18 En

Specifications

In this section, you will find technical specifications for A-S2000.

Specifications

POWER SECTION

• Minimum RMS Output Power

(8 Ω , 20 Hz to 20 kHz, 0.02% THD) ...................... 90 W + 90 W

(4 Ω , 20 Hz to 20 kHz, 0.02% THD) .................. 150 W + 150 W

• Dynamic Power (IHF) (8/6/4/2 Ω) ................... 105/135/190/220 W

• Maximum Output Power

(1 kHz, 0.7% THD, 4 Ω) [U.K. and Europe models only]

.......................................................................................... 160 W

• Maximum Useful Output Power (JEITA)

(1 kHz, 10% THD, 8/4 Ω)

[Asia, General, China and Korea models only] ....... 120/190 W

• Dynamic Headroom

8 Ω ..................................................................................... 0.67 dB

• IEC Output Power [U.K. and Europe models only]

(1 kHz, 0.02% THD, 8/4 Ω)............................................ 95/155 W

• Damping Factor

1 kHz, 8 Ω ................................................................................ 160

• Maximum Input Signal

CD, etc. ................................................................................. 2.8 V

PHONO MM (1 kHz) ........................................................ 120 mV

PHONO MC (1 kHz) ............................................................ 7 mV

• Frequency Response

CD, etc. (Flat Position, 5 Hz to 100 kHz) ...................... +0/−3 dB

CD, etc. (Flat Position, 20 Hz to 20 kHz) ................... +0/−0.3 dB

• RIAA Equalization Deviation

PHONO MM (20 Hz to 20 kHz) ...................................... ±0.5 dB

PHONO MC (20 Hz to 20 kHz) ....................................... ±0.5 dB

• Total Harmonic Distortion

CD BAL to SP OUT

(20 Hz to 20 kHz, 90 W/8 Ω) ............................................. 0.01%

CD, etc. to SP OUT

(20 Hz to 20 kHz, 90 W/8 Ω) ........................................... 0.015%

PHONO MM to REC

(20 Hz to 20 kHz, 2 V) ..................................................... 0.005%

PHONO MC to REC

(20 Hz to 20 kHz, 2 V) ....................................................... 0.05%

• Intermodulation Distortion

CD, etc. to SP OUT

(Rated output/8 Ω) ............................................................. 0.02%

• Signal to Noise Ratio (IHF-A Network)

CD, etc. (150 mV, Input shorted) ..........................................98 dB

PHONO MM (5 mV, Input shorted) .....................................93 dB

PHONO MC (500 µV, Input shorted) ..................................85 dB

• Residual Noise (IHF-A Network) (CD, etc.) .......................... 33 µV

CONTROL SECTION

• Input Sensitivity/Input Impedance

CD, etc. .................................................................. 150 mV/47 kΩ

MM ......................................................................... 2.5 mV/47 kΩ

MC ........................................................................... 100 µV/50 Ω

MAIN IN ...................................................................... 1 V/47 kΩ

• Output Level/Output Impedance

REC OUT ............................................................. 150 mV/1.5 kΩ

PRE OUT ..................................................................... 1 V/1.5 kΩ

• Headphone Rated Output

1 kHz, 32 Ω , 0.2% THD ................................................... 30 mW

• Channel Separation

CD, etc. (5.1 kΩ Terminated, 1 kHz/10 kHz) ................. 74/54 dB

PHONO MM (Input shorted, 1 kHz/10 kHz, Vol.:−30 dB)

....................................................................................... 90/77 dB

PHONO MC (Input shorted, 1 kHz/10 kHz, Vol.:−30 dB)

....................................................................................... 66/77 dB

• Tone Control Characteristics
BASS

Boost/Cut (50 Hz) ............................................................. ±9 dB

Turnover Frequency ........................................................ 350 Hz

TREBLE

Boost/Cut (20 kHz) ........................................................... ±9 dB

Turnover Frequency ....................................................... 3.5 kHz

• Audio muting......................................................... –20 dB (approx.)

GENERAL

• Power Supply

[U.S.A. and Canada models] ............................. AC 120 V, 60 Hz

[Asia model] .................................. AC 220/230–240 V, 50/60 Hz

[General model] ............... AC 110/120/220/230–240 V, 50/60 Hz

[China model] .................................................... AC 220 V, 50 Hz

[Korea model] .................................................... AC 220 V, 60 Hz

[Australia model] ............................................... AC 240 V, 50 Hz

[U.K. and Europe models] ................................. AC 230 V, 50 Hz

• Power consumption ................................................................ 350 W

• Idling power consumption ......................................................... 80 W

• Off-state power consumption ...................................................... 0 W

• Dimensions (W x H x D) ................................. 435 x 137 x 465 mm

(17-1/8” x 5-3/8” x 18-5/16”)

• Weight .................................................................... 22.7 kg (50 lbs.)

* Specifications are subject to change without notice.

20 En

■ Block diagram

REMOTE

BASS

FRONT PANEL

TREBLE

BALANCE

INPUT SEL

VOLUME

µ COM

PROTECTION

CONTROL

MAIN IN

PRE OUT

LINE2 REC

BUFFER AMP

UNBALANCE

CONVERTER

⇐⇒

BALANCE

LINE2 PB

LINE1

COLD

TUNER

HOT

CD

MM/MC

EQ AMP

PHONO

HEAD AMP

MC

INPUT SELECTOR

HOT (POSITIVE PHASE)

COLD (NEGATIVE PHASE)

CD BAL

BUFFER AMP

for COLD

R CH

for µ COM

POWER SWITCH

for HOT

SUB TRANSFORMER

(for POWER AMP / VOLTAGE AMP STAGE)

for COLD

R CH

L CH

INDEPENDENT CURRENT REGULATED POWER SUPPLY (for AUDIO)

for MC AMP

for EQ AMP

for LINE AMP1

for LINE AMP2

for VOLUME1

for VOLUME2

for HOT

MAIN TRANSFORMER

INDEPENDENT FLOATING

POWER SUPPLY

L CH

BALANCE

CONVERTER

⇐⇒

UNBALANCE

LOW IMPEDANCE DRIVE

HEADPHONE AMP

ATT. 5

ATT. 6

FLAT

COLD

SPEAKER DRIVER

COLD (NEGATIVE PHASE) SIDE

COLD

ATT. 4

TONE CONTROL DEVICES

TONE CONTROL/FLAT

MAIN DIRECT

HOT (POSITIVE PHASE) SIDE

ATT. 2

ATT. 3

FLAT

HOT

SPEAKER DRIVER

HOT

ATT. 1

VOLUME & TONE CONTROL

TONE CONTROL DEVICES

FLOATING BALANCE

POWER AMPLIFIER

PHONES

to POWER AMP

R CH

SP A L CH

SP B L CH

SPEAKERS L CH

+

+

–

–

A

B

English

21 En

Specifications

■ Tone control characteristics

+15

+12.5

+10

+7.5

+5

+2.5

0

–2.5

Response (dB)

■ Total harmonic distortion

–5

–7.5

–10

–12.5

–15

10 20 50 100 200 500 1k

1

2k 5k 10k 20k 50k 100k

Frequency (Hz)

0.5

0.2

0.1

0.05

0.02

THD + N Ratio (%)

0.01

0.005

0.002

0.001
2510

Output (W)

20 50 100

20kHz

20Hz

1kHz

22 En

■ Total harmonic distortion (PHONO)

10

5

2
1

0.5

0.2

0.1

0.05

0.02

0.01

THD + N Ratio (%)

0.005

0.002

0.001

0.0005

0.0002

0.0001
100µ 200µ 500µ 1m 2m 5m 10m 20m

20Hz 1kHz 20kHz

50m 100m 200m 500m 1 2

Input (Vrms)

23 En

English

Troubleshooting

Refer to the chart below if this unit does not function properly. If the problem you are experiencing is not listed below or
if the instructions below do not help, turn off this unit, disconnect the AC power cable, and contact the nearest authorized
Yamaha dealer or service center.

Problem Cause Remedy

This unit fails to turn
on.

The POWER indicator
on the front panel
flashes.

The INPUT indicator
on the front panel
flashes and the
volume is turned
down when you turn
on this unit.

No sound. Incorrect input or output cable

The sound suddenly
goes off.

Only the speaker on
one side can be
heard.

There is a lack of bass
and no ambience.

A “humming” sound
is heard.

The AC power cable is not connected to
the AC IN inlet on the rear panel or not
plugged in the AC wall outlet.

The protection circuitry has been activated
because of a short circuit, etc.

This unit has been exposed to a strong
external electric shock (such as lightning
or strong static electricity).

The protection circuitry has been activated
because of a short circuit, etc.

There is a problem with the internal
circuitries of this unit.

The protection circuitry has been activated
because of a short circuit, etc.

connections.

No appropriate input source has been
selected.

The SPEAKERS switch is not set
properly.

Speaker connections are not secure. Secure the connections.

The protection circuitry has been activated
because of a short circuit, etc.

Incorrect cable connections. Connect the cables properly. If the problem persists,

Incorrect setting for the BALANCE
control.

The + and – wires are connected in
reverse at the amplifier or the speakers.

Incorrect cable connections. Connect the audio cable plugs firmly. If the problem

No connection from the turntable to the
GND terminal.

Connect the AC power cable firmly.

Check that the speaker wires are not touching each
other or shorting out against the rear panel of this
unit, and then turn the power of this unit back on.

Turn off this unit, disconnect the AC power cable,
plug it back in after 30 seconds, and then use it
normally.

Check that the speaker wires are not touching each
other or shorting out against the rear panel of this
unit, and then turn the power of this unit back on.

Disconnect the AC power cable and contact the
nearest authorized Yamaha dealer or service center.

Check that the speaker wires are not touching each
other or shorting out against the rear panel of this
unit, and then turn the power of this unit back on.

Connect the cables properly. If the problem persists,
the cables may be defective.

Select an appropriate input source with the INPUT
selector on the front panel (or one of the input
selector buttons on the remote control).

Switch the SPEAKERS switch to the appropriate
position.

Check that the speaker wires are not touching each
other or shorting out against the rear panel of this
unit, and then turn the power of this unit back on.

the cables may be defective.

Set the BALANCE control to the appropriate
position.

Connect the speaker wires to the correct + and –
phase.

persists, the cables may be defective.

Connect the turntable to the GND terminal of this
unit.

See

page

18

14

—

14

—

14

14

—

—

14

14

14

—

14

14

14

24 En

Problem Cause Remedy

The volume level is
low while playing a
record.

The sound is
degraded when
listening with the
headphones
connected to the CD
player connected to
this unit.

The remote control
does not work or
function properly.

Incorrect setting for the PHONO switch
on the front panel.

The power of this unit is turned off. Turn on the power of this unit.

Wrong distance or angle. The remote control functions within a maximum

Direct sunlight or lighting (from an
inverter type of fluorescent lamp, etc.) is
striking the remote control sensor of this
unit.

The batteries are weak. Replace all batteries.

Switch the PHONO switch to the MM or MC position
according to the type of magnetic cartridge of the
turntable.

range of 6 m (20 ft) and no more than 30 degrees off­axis from the front panel.

Reposition this unit.

Taking care of this unit

When you wipe this unit, do not use chemical solvents
(ex. alcohol or thinner etc.); this might damage the
finish. Use a clean, dry cloth. For heavy dirt, dampen a
soft cloth in detergent diluted with the water, wring it
out, and then clean this unit up with the cloth.

See

page

—

—

6

—

12

The screws on the side panels may loosen as wood
expands and contracts. In this case, tighten the screws.

English

25 En

© 2007 All rights reserved.

YAMAHA ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A.
YAMAHA CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA
YAMAHA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR. 22-34, 25462 RELLINGEN BEI HAMBURG, GERMANY
YAMAHA ELECTRONIQUE FRANCE S.A. RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARNE-LA-VALLEE CEDEX02, FRANCE
YAMAHA ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD18 7GQ, ENGLAND
YAMAHA SCANDINAVIA A.B. J A WETTERGRENS GATA 1, BOX 30053, 400 43 VÄSTRA FRÖLUNDA, SWEDEN
YAMAHA MUSIC AUSTRALIA PTY, LTD. 17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA

Printed in Malaysia WM15590

Stereo amplifier
Amplificateur Stéréo

UCAB

SAFETY BROCHURE

BROCHURE SUR LA SECURITE

IMPORTANT SAFETY INSTRUCTIONS

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

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.

• Explanation of Graphical Symbols

The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert you 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 you to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.

IMPORTANT

Please record the serial number of this unit in the space
below.
MODEL:
Serial No.:
The serial number is located on the rear of the unit.
Retain this Owner’s Manual in a safe place for future
reference.

FOR CANADIAN CUSTOMERS

To prevent electric shock, match wide blade of plug to
wide slot and fully insert.
This Class B digital apparatus complies with Canadian
ICES-003.

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.

We Want You Listening For A Lifetime

Yamaha and the Electronic Industries Association’s Consumer Electronics Group want you to get the most out of your
equipment by playing it at a safe level. One that lets the sound come through loud and clear without annoying blaring or
distortion – and, most importantly, without affecting your sensitive hearing. Since hearing damage from loud sounds is
often undetectable until it is too late, Yamaha and the Electronic Industries Association’s Consumer Electronics Group
recommend you to avoid prolonged exposure from excessive volume levels.

i En

FCC INFORMATION (for US customers)

English

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.

■ For U.K. customers

If the socket outlets in the home are not suitable for the plug supplied
with this appliance, it should be cut off and an appropriate 3 pin plug
fitted. For details, refer to the instructions described below.

Note

The plug severed from the mains lead must be destroyed, as a plug
with bared flexible cord is hazardous if engaged in a live socket outlet.

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 Electronics
Corp., U.S.A. 6660 Orangethorpe Ave., Buena Park, CA

90620.

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

■ Special Instructions for U.K. Model

IMPORTANT

THE WIRES IN 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.
Making sure that neither core is connected to the earth
terminal of the three pin plug.

ii En

Caution: Read this before operating your unit.

1 To assure the finest performance, please read this manual

carefully. Keep it in a safe place for future reference.

2 Install this sound system in a well ventilated, cool, dry, clean

place – away from direct sunlight, heat sources, vibration,
dust, moisture, and/or cold. Allow ventilation space of at least
30 cm on the top, 20 cm on the left and right, and 20 cm on
the back of this unit.

3 Locate this unit away from other electrical appliances, motors,

or transformers to avoid humming sounds.

4 Do not expose this unit to sudden temperature changes from

cold to hot, and do not locate this unit in an environment with
high humidity (i.e. a room with a humidifier) to prevent
condensation inside this unit, which may cause an electrical
shock, fire, damage to this unit, and/or personal injury.

5 Avoid installing this unit where foreign objects may fall onto

this unit and/or this unit may be exposed to liquid dripping or
splashing. On the top of this unit, do not place:
– Other components, as they may cause damage and/or

discoloration on the surface of this unit.

– Burning objects (i.e. candles), as they may cause fire,

damage to this unit, and/or personal injury.

– Containers with liquid in them, as they may fall and liquid

may cause electrical shock to the user and/or damage to
this unit.

6 Do not cover this unit with a newspaper, tablecloth, curtain,

etc. in order not to obstruct heat radiation. If the temperature
inside this unit rises, it may cause fire, damage to this unit,
and/or personal injury.

7 Do not plug in this unit to a wall outlet until all connections

are complete.

8 Do not operate this unit upside-down. It may overheat,

possibly causing damage.

9 Do not use force on switches, knobs and/or cords.
10 When disconnecting the power cable from the wall outlet,

grasp the plug; do not pull the cable.

11 Do not clean this unit with chemical solvents; this might

damage the finish.

12 Only voltage specified on this unit must be used. Using this

unit with a higher voltage than specified is dangerous and may
cause fire, damage to this unit, and/or personal injury. Yamaha
will not be held responsible for any damage resulting from use
of this unit with a voltage other than specified.

13 To prevent damage by lightning, keep the power cord

disconnected from a wall outlet or the unit during a lightning
storm.

14 Do not attempt to modify or fix this unit. Contact qualified

Yamaha service personnel when any service is needed. The
cabinet should never be opened for any reasons.

15

When not planning to use this unit for long periods of time (i.e.
vacation), disconnect the AC power plug from the wall outlet.

16 Install this unit near the AC outlet and where the AC power

plug can be reached easily.

17 Be sure to read the “Troubleshooting” section in the owner’s

manual on common operating errors before concluding that
this unit is faulty.

18 Before moving this unit, press POWER downward to turn off

this unit and then disconnect the AC power plug from the AC
wall outlet.

19 VOLTAGE SELECTOR (Asia and General models only)

The VOLTAGE SELECTOR on the rear panel of this unit
must be set for your local main voltage BEFORE plugging
into the AC wall outlet. Voltages are:

................................AC 110/120/220/230–240 V, 50/60 Hz

20 The batteries shall not be exposed to excessive heat such as

sunshine, fire or like.

21 Excessive sound pressure from earphones and headphones

can cause hearing loss.

As long as this unit is connected to the AC wall outlet,
it is not disconnected from the AC power source even
if you turn off this unit by POWER.

WARNING

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

This symbol mark is according to the
EU directive 2002/96/EC.

This symbol mark means that electrical
and electronic equipment, at their end­of-life, should be disposed of separately
from your household waste.
Please act according to your local rules
and do not dispose of your old products
with your normal household waste.

iii En

■ Notes on batteries

• Change all of the batteries if you notice that the operation range of
the remote control decreases.

• Use AA, R6, UM-3 batteries.

• Make sure that the polarities are correct. See the illustration inside
the battery compartment.

• Remove the batteries if the remote control is not used for an
extended period of time.

• Do not use old batteries together with new ones.

• Do not use different types of batteries (such as alkaline and manganese
batteries) together. Read the packaging carefully as these different types of
batteries may have the same shape and color.

• If the batteries have leaked, dispose of them immediately. Avoid
touching the leaked material or letting it come into contact with
clothing, etc. Clean the battery compartment thoroughly before
installing new batteries.

• Do not throw away batteries with general house waste; dispose of
them correctly in accordance with your local regulations.

■ Handling the remote control

• The area between the remote control and this unit must be clear of
large obstacles.

• Do not spill water or other liquids on the remote control.

• Do not drop the remote control.

• Do not leave or store the remote control in the following types of
conditions:
– places of high humidity, such as near a bath
– places of high temperature, such as near a heater or a stove
– places of extremely low temperatures
– dusty places

• Do not expose the remote control sensor to strong lighting, in
particular, an inverter type fluorescent lamp; otherwise, the remote
control may not work properly. If necessary, position this unit away
from direct lighting.

Limited Guarantee for European Economic Area (EEA) and Switzerland

Thank you for having chosen a Yamaha product. In the unlikely event that your Yamaha product needs guarantee service, please contact the dealer from
whom it was purchased. If you experience any difficulty, please contact Yamaha representative office in your country. You can find full details on our
website (http://www.yamaha-hifi.com/ or http://www.yamaha-uk.com/ for U.K. resident).

The product is guaranteed to be free from defects in workmanship or materials for a period of two years from the date of the original purchase. Yamaha
undertakes, subject to the conditions listed below, to have the faulty product or any part(s) repaired, or replaced at Yamaha’s discretion, without any charge
for parts or labour. Yamaha reserves the right to replace a product with that of a similar kind and/or value and condition, where a model has been
discontinued or is considered uneconomic to repair.

1. The original invoice or sales receipt (showing date of purchase, product code and dealer’s name) MUST accompany the defective product, along with a

statement detailing the fault. In the absence of this clear proof of purchase, Yamaha reserves the right to refuse to provide free of charge service and the
product may be returned at the customer’s expense.

2. The product MUST have been purchased from an AUTHORISED Yamaha dealer within the European Economic Area (EEA) or Switzerland.

3. The product must not have been the subject of any modifications or alterations, unless authorised in writing by Yamaha.

4. The following are excluded from this guarantee:
a. Periodic maintenance and repair or replacement of parts due to normal wear and tear.
b. Damage resulting from:

(1) Repairs performed by the customer himself or by an unauthorised third party.
(2) Inadequate packaging or mishandling, when the product is in transit from the customer. Please note that it is the customer’s responsibility to

ensure the product is adequately packaged when returning the product for repair.

(3) Misuse, including but not limited to (a) failure to use the product for its normal purpose or in accordance with Yamaha’s instructions on the proper

use, maintenance and storage, and (b) installation or use of the product in a manner inconsistent with the technical or safety standards in force in
the country where it is used.

(4) Accidents, lightning, water, fire, improper ventilation, battery leakage or any cause beyond Yamaha’s control.
(5) Defects of the system into which this product is incorporated and/or incompatibility with third party products.
(6) Use of a product imported into the EEA and/or Switzerland, not by Yamaha, where that product does not conform to the technical or safety

standards of the country of use and/or to the standard specification of a product sold by Yamaha in the EEA and/or Switzerland.

(7) Non AV (Audio Visual) related products.

(Products subject to “Yamaha AV Guarantee Statement” are defined in our website at http://www.yamaha-hifi.com/ or
http://www.yamaha-uk.com/ for U.K. resident.)

5. Where the guarantee differs between the country of purchase and the country of use of the product, the guarantee of the country of use shall apply.

6. Yamaha may not be held responsible for any losses or damages, whether direct, consequential or otherwise, save for the repair or replacement of the

product.

7. Please backup any custom settings or data, as Yamaha may not be held responsible for any alteration or loss to such settings or data.

8. This guarantee does not affect the consumer’s statutory rights under applicable national laws in force or the consumer’s rights against the dealer arising

from their sales/purchase contract.

Conditions

English

iv En

YAMAHA ELECTRONICS CORPORATION, USA

©

YAMAHA CANADA MUSIC LTD.
YAMAHA ELECTRONIK EUROPA G.m.b.H.
YAMAHA ELECTRONIQUE FRANCE S.A.
YAMAHA ELECTRONICS (UK) LTD.
YAMAHA SCANDINAVIA A.B.
YAMAHA MUSIC AUSTRALIA PTY, LTD.

135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA

J A WETTERGRENS GATA 1, BOX 30053, 400 43 VÄSTRA FRÖLUNDA, SWEDEN

6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A.

SIEMENSSTR. 22-34, 25462 RELLINGEN BEI HAMBURG, GERMANY

RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARNE-LA-VALLEE CEDEX02, FRANCE

YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD18 7GQ, ENGLAND

17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA

2007 All rights reserved.

Printed in Malaysia

WM15640

A-S2000/CD-S2000

©

Note on transport tape English

Upon shipment from the factory, magnet feet are fixed with
transport tape to this unit’s feet. Remove the transport tape
before placing this unit.

Remarque sur le ruban adhésif Français

Les pieds aimantés ont été fixés en usine aux pieds de cet
appareil avec du ruban adhésif. Retirez le ruban adhésif avant
d’installer cet appareil.

Hinweis zum Transportband Deutsch

Bei Versand ab Werk sind die Magnetfüße mit Transportband an
den Füßen des Geräts befestigt. Entfernen Sie das
Transportband vor der Aufstellung des Geräts.

Anmärkning angående transporttejp Svenska

Magnetfötterna fixeras med transporttejp på förstärkarens fötter
före leverans från fabriken. Avlägsna transporttejpen före
placering av förstärkaren.

Note sul nastro adesivo per il trasporto Italiano

Opmerking over het plakband voor het vervoer

Nederlands

In de fabriek zijn de magnetische voetjes met plakband
vastgezet aan de voetjes van het toestel. Verwijder dit plakband
voor u het toestel neerzet.

Примечание по транспортировочной ленте

Русский

При отгрузке с завода-изготовителя, с помощью
транспортировочной ленты, к ножкам данного аппарата
прикрепляются магнитные ножки. Перед размещением
данного аппарата, снимите транспортировочную ленту.

᧿᧢ފࣽᕘ৙ሇ༉ଐЀᲇ ϔಞ

ՠ؅೎ƥዐѱᕫ៿᧿᧢ފࣽᅶሇᕘ৙ފࣽޗലസκˊޗᡷᒳϥ
֏ƥ᢭ؚᰑ᧿᧢ފࣽᅶሇᕘ৙ˊ

운송 테이프에 대한 주의사항 한국어

본 기기 발판에는 마그넷 피트가 있는 운송 테이프가 부착되어
있습니다 . 본 기기를 설치하기 전에 운송 테이프를 제거하십시
오.

Al momento della spedizione dalla fabbrica, i piedini magnetici
vengono fissati al loro posto con nastro adesivo per il trasporto ai
piedini di questa unità. Prima di installare questa unità, non
dimenticare di togliere il nastro adesivo per il trasporto.

Nota acerca de la cinta de transporte Español

Al salir la unidad de la fabrica, las patas magnéticas están
fijadas con cinta de transporte a las patas de esta unidad. Quite
la cinta de transporte anes de instalar esta unidad.

輸送用テープの取り外し 日本語

工場出荷時には、スパイクカバーが本機の脚に輸送用テープで
固定されています。設置される前に、輸送用テープを取り外し
てください。

2007 All rights reserved.

Printed in Malaysia WN46980