Yamaha CP2000 User Manual

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Page 1

POWER AMPLIFIER

Owner’s Manual

POWER

ON OFF

TEMP

PROTECTION

POWER

POWER AMPLIFIER

30 30

Keep This Manual For Future Reference.

LLR

CLIP

LEVEL

–dB

Page 2

WARNING: THIS APPARATUS MUST BE EARTHED

IMPORTANT

THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE:

GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVE As the colours of the wires in the mains lead of this apparatus may

not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:

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

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

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

* This applies only to products distributed by YAMAHA KEMBLE

MUSIC (U.K.) LTD.

Page 3

Important Information

Please read the following before using the CP2000

Warnings

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

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

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

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

• Do not place a container with liquid or small metal objects on top of this unit. Liquid or metal objects inside this unit are a ﬁre and electrical shock hazard.

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

Important Information

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

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

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

• Do not modify the unit. Doing so is a ﬁre and electrical shock hazard.

Cautions

• When rack-mounting the unit, allow enough free space around the unit for normal ventilation. This should be: 10 cm behind, and 2 cm above. For normal ventilation during use, remove the rear of the rack or open a ventilation hole. If the airﬂow is not adequate, the unit will heat up inside and may cause a ﬁre.

• This unit has ventilation holes at the front and rear to prevent the internal temperature rising too high. Do not block them. Blocked ventilation holes are a ﬁre hazard.

• Clean the contacts of the phone plug before connecting it to the SPEAKERS jack of this unit. Dirty contacts may generate heat.

• Use only speaker cables when connecting speakers to ampliﬁer outputs. Using other types of cables is a ﬁre hazard.

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

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

• Do not use this ampliﬁer for any purpose other than driving loudspeakers.

CP2000—Owner’s Manual

Page 4

Package Contents

The CP2000 package should contain the following items. Contact your Yamaha dealer if anything is missing.

• CP2000 Power Ampliﬁer

• This manual

Trademarks

Yamaha is a trademark of Yamaha Corporation. All other trademarks are the property of their respective holders and are hereby acknowledged.

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

Contents

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

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

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

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

2 Hookup Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Stereo Hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Parallel Hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Bridge Mode Hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Using the CP2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Connecting Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Connecting Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Connecting S115 and S112 loudspeakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Turning On the Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Protection System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Daisy Chaining Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

CP2000—Owner’s Manual

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Page 5

1 Introduction

Welcome

Thank you for choosing the Yamaha CP2000 Power Ampliﬁer. Based on a new improved version of Yamaha’s EEEngine ampliﬁer technology, the CP2000 is a versatile two-channel power ampliﬁer, offering high-power, superb sonic performance, and reliability, all backed by the Yamaha tradition of excellence in professional audio.

CP2000 key features include

• 650 W+650 W into 4

• 2,000 W into 4

• Yamaha Speaker Processing matches the CP2000 to the Yamaha S115 and S112 loud-

speakers.

• Three operating modes are provided: STEREO mode in which Channel L and Channel R operate independently, PARALLEL mode in which the channels operate independently but are both fed from the Channel L inputs, and BRIDGE mode in which both channels are combined to form a massive 2000 watt single-channel ampliﬁer.

Ω

bridged, 1,300 W into 8

Ω

stereo, 450 W+450 W into 8

Ω

bridged.

Ω

stereo.

Introduction

• Improved EEEngine technology using MOSFET output devices.

• Compared to conventional designs, EEEngine ’s energy saving capabilities reduce power

consumption by up to 50% and cut heat generation by up to 35%.

• Built-in limiter prevents excessive output signal distortion, protecting both speakers and eardrums.

• Electronically balanced XLR-type and 1/4" phone jack input connectors.

• 5-way binding posts and 1/4" phone jack output connectors.

• Signal and CLIP indicators on each channel provide signal presence and clip warning.

• Relay-based protection system protects both ampliﬁer and speakers if heatsink over-

heating occurs or a DC offset is detected at the outputs.

• TEMP indicator warns of heatsink overheating.

• Variable-speed low-noise fan regulates the system temperature even under the most

demanding conditions. While the CP2000 is idle, the fan stops for silent operation.

CP2000—Owner’s Manual

Page 6

Chapter 1—Introduction

Front Panel

POWER

TEMP

PROTECTION

POWER

ON OFF

2 3 4

POWER switch

This is the main POWER switch. Press to turn on the ampliﬁer; press again to turn off. See “Turning On the Power” on page 11 for more information.

POWER AMPLIFIER

30 30

CLIP

LEVEL

–dB

POWER indicator

This indicator lights up when the CP2000 is turned on.

PROTECTION indicator

This indicator shows the status of the protection system. See “Protection System” on page 11 for more information.

TEMP indicator

This indicator lights up if the temperature of the CP2000’s heatsinks exceed 85 degrees Celsius. Note that this indicator only serves as a warning. It does not indicate operation of the protection system.

Level controls

These controls are used to adjust the volume level of each channel. Since the gain of each ampliﬁer channel is ﬁxed, these controls work by attenuating the input signal from between –

∞

dB and 0 dB. They are detented controls, which means they can be set to any one of 31 positions. Detents protect against accidental adjustment, allow repeatable setting, and make it easy to set both channels to the same volume. Usually these controls are set to maximum and volume levels are controlled from the source equipment, typically a mixer.

CLIP indicators

These indicators light up when a channel’s output signal distortion exceeds 1% (i.e., clipping). Output signal clipping is usually due to excessive input signal levels. If a channel’s output signal does clip, that channel’s limiter circuit is activated to prevent further signal distortion. It’s okay for a CLIP indicator to light occasionally, but if it lights fre- quently, the LEVEL control should be turned down a little.

CP2000—Owner’s Manual

LEVEL indicators

These indicators show the output signal level of each channel. The green indicators light up when the output voltage is 2 V or greater, while the yellow indicators light up when it’s 20 V or greater.

Page 7

Rear Panel

CHANNEL R CHANNEL L

STEREO

132

2 3

INPUT

BRIDGE

PARALLEL

NEUTRIK

231

OFF ON

YAMAHA SPEAKER PROCESSING

INPUTs

(BRIDGE)

Rear Panel

(–)(+)

CHANNEL R CHANNEL L

BRIDGE

SPEAKERS

221

Since the phone jack and XLR-type connector on each channel are internally connected, either connector can be used to distribute the input signal to another ampliﬁer. See “Daisy Chaining Inputs” on page 12 for more information.

Mode switch

This switch is used to select the ampliﬁer’s mode of operation: STEREO, PARALLEL, or BRIDGE.

STEREO

—In this mode, which is typically used to amplify stereo sources, the L and R

channels operate independently.

PARALLEL

—In this mode, the L and R channels operate independently but the input signal for both channels is sourced from the Channel L inputs. This mode is typically used with a mono source and allows independent volume control of two sets of speakers.

BRIDGE

—In this mode, the L and R channels are combined to form a massive 2000 watt single-channel ampliﬁer. The input signal is sourced from the Channel L inputs, the volume level is set by using the Channel L LEVEL control, and the speakers are connected to the binding posts labelled BRIDGE.

YAMAHA SPEAKER PROCESSING switch

This switch is used to activate the special EQ processing that optimizes the CP2000 for use with the Yamaha S115 and S112 loudspeakers. When other speakers are used, this switch should be set to OFF. See “Connecting S115 and S112 loudspeakers” on page 11 for more information.

SPEAKERS connectors

The outputs for each CP2000 channel comprise of one 1/4" phone jack and one pair of 5-way binding posts. The 1/4" phone jacks accept 1/4" phone plugs, while the 5-way binding posts offer several methods of connection, including single or double banana plugs, spade lugs, or bare wires. See “Connecting Speakers” on page 9 for more information. See also “Hookup Examples” on page 4.

CP2000—Owner’s Manual

Page 8

Chapter 2—Hookup Examples

GND terminal

For safety reasons it’s important that the CP2000 is grounded. The attached power cord has a three-pin plug, and if the ground terminal of the AC outlet to which it is connected is grounded, then the CP2000 will be grounded adequately via the power cord. If the AC outlet does not have a suitable ground terminal, a ground connection should be made to this ground terminal. If hum or noise occurs, try to eliminate it by connecting this terminal to a good ground point or the chassis of the mixer, preamp, etc.

2 Hookup Examples

Stereo Hookup

In STEREO mode, the L and R channels operate independently. This mode is typically used to amplify stereo sources. The following hookup example shows how the CP2000 can be used in STEREO mode.

STEREO

BRIDGE

PARALLEL

CHANNEL R CHANNEL L

STEREO

132

ST OUT

BRIDGE

INPUT

PARALLEL

NEUTRIK

231

OFF ON

YAMAHA SPEAKER PROCESSING

(BRIDGE)

Total impedance: 2Ω min (1000 W) 4Ω (650 W) 8Ω (450 W)

BRIDGE

(–)(+)

CHANNEL R CHANNEL L

SPEAKERS

221

Total impedance: 2Ω min (1000 W) 4Ω (650 W) 8Ω (450 W)

Mixer

STEREO Notes:

• The stereo input source is connected to the L and R inputs.

• The Channel L and Channel R volume levels can be set independently.

• Speakers can be connected to the 1/4" phone jacks and 5-way binding posts.

CP2000—Owner’s Manual

Page 9

Parallel Hookup

In PARALLEL mode, the L and R channels operate independently but the input signal for both channels is sourced from the Channel L inputs. This mode is typically used with a mono source and allows independent volume control of two sets of speakers. The following hookup example shows how the CP2000 can be used in PARALLEL mode.

STEREO

BRIDGE

PARALLEL

CHANNEL R CHANNEL L

INPUT

STEREO

BRIDGE

PARALLEL

132

OFF ON

YAMAHA SPEAKER PROCESSING

NEUTRIK

231

(BRIDGE)

Parallel Hookup

(–)(+)

CHANNEL R CHANNEL L

BRIDGE

SPEAKERS

221

Mixer

MONO OUT

Total impedance: 2Ω min (1000 W) 4Ω (650 W) 8Ω (450 W)

PARALLEL Notes:

• The input source must be connected to the Channel L inputs.

• The Channel R inputs are inactive.

• The Channel L and Channel R volume levels can be set independently.

• Speakers can be connected to the 1/4" phone jacks and 5-way binding posts.

CP2000—Owner’s Manual

Page 10

Chapter 2—Hookup Examples

Bridge Mode Hookup

In BRIDGE mode, the L and R channels are combined to form a massive 2000 watt single-channel ampliﬁer. The input signal is sourced from the Channel L inputs. The following hookup example shows how the CP2000 can be used in BRIDGE mode.

STEREO

BRIDGE

PARALLEL

CHANNEL R CHANNEL L

INPUT

STEREO

BRIDGE

PARALLEL

132

OFF ON

YAMAHA SPEAKER PROCESSING

NEUTRIK

231

(BRIDGE)

BRIDGE

(–)(+)

CHANNEL R CHANNEL L

SPEAKERS

221

Mixer

Total impedance: 4Ω min (2000 W) 8Ω (1300 W)

MONO OUT

• The input source must be connected to the Channel L inputs.

• The volume level is set by using the Channel L LEVEL control.

• The Channel R inputs and LEVEL control are inactive.

• The speakers must be connected to the 5-way binding posts.

• The 1/4" phone jack outputs must not be used.

CP2000—Owner’s Manual

BRIDGE Notes:

Page 11

3 Using the CP2000

Installation

The CP2000 can be mounted in a standard rack and requires 2 rack-space units. In addition to the front-panel rack-mounting holes, the CP2000 also features support brackets at the rear, which offer additional support and should be ﬁxed to the rear of the rack. The CP2000 can also be placed horizontally on the ﬂoor or a suitable table.

The CP2000 uses a variable-speed low-noise fan to regulate the system temperature, which draws air in from the front and expels it from the rear. For correct operation, it’s important that the air ﬂow at the front and rear of the CP2000 is not blocked or restricted in any way. If the CP2000 is mounted in a portable rack with removable front and rear covers, be sure to remove the covers before using the CP2000.

Connecting Inputs

Using the CP2000

Warning: Turn off all equipment before making any connections.

The inputs for each CP2000 channel comprise of one 1/4" phone jack and one XLR-3-31-type connector. Both connectors are electronically balanced, although they can also be used with unbalanced sources. For optimum performance, use only quality screened cables for input connections. Under no circumstances should you connect more than one sound source to the same channel. The inputs are designed to work with line-level sources, such as mixers, CD players, and other professional audio equipment.

The 1/4" TRS (Tip-Ring-Sleeve) phone jacks are wired as follows: sleeve–ground, tip–hot (+), and ring–cold (–).

TRS phone plugs should be wired as follows.

To connect an unbalanced source to an INPUT jack, connect the ring (cold) terminal to the sleeve (ground) terminal, as shown.

1/4" TRS phone plug

Tip (hot)

Ring (cold)

Sleeve (ground)

Tip (hot)

Ring (cold)

Sleeve (ground)

The XLR-type connectors are wired as follows: pin 1–ground, pin 2–hot (+), and pin 3–cold (–).

Male XLR plugs should be wired as follows.

Male XLR plug

CP2000—Owner’s Manual

1 (ground)

3 (cold)

2 (hot)

Page 12

Chapter 3—Using the CP2000

To connect an unbalanced source to an INPUT XLR, connect pin 3 (cold) to pin 1 (ground), as shown below.

The following table shows which inputs, LEVEL controls, and signal and CLIP indicators are active in each CP2000 mode.

Channel Item STEREO PARALLEL BRIDGE

INPUT connectors

LEVEL control Signal & CLIP indicators INPUT connectors LEVEL control Signal & CLIP indicators

Male XLR plug

OXX OOX OOO OOO OOO OOO

1 (ground)

3 (cold)

2 (hot)

CP2000—Owner’s Manual

Page 13

Connecting Speakers

Warning: Turn off all equipment before making any connections.

For optimum performance, use quality speaker cables with a suitable power rating.

Phone plugs should be wired as follows. When connecting to the binding posts, be

sure to connect the speaker cables with the correct polarity, otherwise, the sound quality will be affected. The plus (+) terminal on the speaker must be connected to the binding post labelled (+), and the (–) terminal on the speaker must be connected to the binding post labelled (–).

Caution for Speaker Connection

1/4" phone plug

Tip (+)

Sleeve (–)

1 Turn off the POWER switch.

2 Before connecting any speakers, remove the

protective cover by unscrewing the two ﬁxing screws shown here. Be sure to replace the cover when you’ve ﬁnished making your connections.

3 When attaching bare-ended speaker cables,

strip off about 15 mm of insulation, unscrew the binding posts, and insert the bare wires through the holes in the posts, and then tighten the binding posts. Make sure that none of the bare wires are splayed in such a way that they may cause a short.

When attaching speaker cables with spade lugs, unscrew the binding posts, place the spade lugs on the posts, and then tighten the binding posts.

4 Reattach the protective cover over the speaker

terminals.

European Speciﬁcations Only

Screw

15mm

This mark indicates a dangerous electri-

221

cally live terminal. When connecting an external wire to this terminal, it is necessary either to have “a person who have received

CHANNEL R CHANNEL L

BRIDGE(—) (+)

SPEAKERS

appropriate guidance on handling” make the connection or to use leads or a cord that have been manufactured in such a way that the connection can be made simply and without problem.

CP2000—Owner’s Manual

Page 14

10 Chapter 3—Using the CP2000

The following table shows which outputs can be used in each CP2000 mode and the minimum speaker impedance. Note that this is the total speaker impedance that can be

connected to each channel. For example, a 2Ω minimum means that you could connect a single 2Ω speaker, two 4Ω speakers in parallel, or four 8Ω speakers in parallel.

Mode Item STEREO PARALLEL BRIDGE

Phone jack (2)

Channel R

Binding posts (1) Binding posts (1)

Channel L

Phone jack (2)

In the STEREO and PARALLEL modes, you can connect speakers to a channel’s 1/4" phone jack and binding posts simultaneously, so long as the total impedance is not less

than 4Ω. In BRIDGE mode, the speakers must be connected to the binding posts

labeled “BRIDGE” and the 1/4" phone jacks cannot be used.

2Ω min

4Ω min

2Ω min

STEREO and PARALLEL

mode only

CHANNEL R CHANNEL L

(total 2Ω min)

BRIDGE(–) (+)

SPEAKERS

4Ω min4Ω min

(total 2Ω min)

221

4Ω min4Ω min

When connecting speakers, it’s important that the total impedance is not less than the minimum speciﬁed. In STEREO and PARALLEL modes, the minimum impedance is

2Ω, and for BRIDGE mode it’s 4Ω. When speakers are connected in parallel, the

impedance is reduced, as shown in the following examples. When connecting multiple speaker cabinets, make sure the total impedance is not less than the minimum.

Total = 2Ω

8Ω

Total = 4Ω

8Ω

Total = 2Ω

4Ω

CP2000—Owner’s Manual

8Ω

4Ω

See the “Hookup Examples” on page 4 for more information on connecting speakers.

Page 15

Connecting S115 and S112 loudspeakers 11

Connecting S115 and S112 loudspeakers

The CP2000 features special EQ processing that opti-

OFF ON

mizes the CP2000 for use with the Yamaha S115 and S112 loudspeakers (especially the 115IV). This processing is turned on and off by using the YAMAHA

YAMAHA SPEAKER PROCESSING

SPEAKER PROCESSING switch. Yamaha loudspeakers should be connected just like any other speaker, and for best performance the YAMAHA SPEAKER PROCESSING switch should be set to ON. When using other speakers, make sure the YAMAHA SPEAKER PROCESSING switch is set to OFF.

Turning On the Power

To prevent audible thumps and clicks, turn on your audio equipment in the following order (reverse this order when turning off your equipment)—sound sources, mixer, CP2000.

1 Press the [POWER] switch to turn on the CP2000.

The CP2000 starts up and the POWER indicator lights up. The output relay closes, connecting the speakers, several seconds after the CP2000 is

turned on.

2 Press the [POWER] switch again to turn off the CP2000.

The POWER indicator goes out. The output relay opens, disconnecting the speakers, immediately the CP2000 is turned off.

POWER

ON OFF

Protection System

The CP2000 features a relay-based protection system to protect itself and the connected speakers against damage due to abnormal operating conditions. When the protection system is active, the speakers are disconnected from the CP2000 and the PROTECTION indicator lights up.

When the CP2000 is turned on, the output relay remains open, disconnecting the speakers, for approximately three seconds. During this time, the PROTECTION indicator lights up. When the protection system has conﬁrmed that no abnormal conditions exist, the output relay closes, connecting the speakers, and the PROTECTION indicator goes out. In addition to allowing the protection system to perform various checks, protects the speakers against thumps and clicks as the CP2000 starts up.

When the CP2000 is turned off, the output relay opens immediately, disconnecting the speakers, and preventing unwanted sound as the CP2000 shuts down.

If during normal operation the protection system detects that a heatsink has overheated or a DC offset is present at a speaker output, the output relay opens, disconnecting the speakers, and the PROTECTION indicator lights up. Once the heatsink has cooled down, or the DC offset removed, the protection system automatically closes the output relay, reconnecting the speakers, the PROTECTION indicator goes out, and normal operation is resumed.

Heatsink overheating is typically caused by inadequate ventilation and it’s important that you investigate the cause and resolve it (see page 13 for more information).

PROTECTION

Another layer of protection is offered by the thermostatic cutout (auto-reset type) built into the CP2000 power supply transformer. If abnormal operating conditions, such as a shorted load or overload, continue for a long period of time, the thermostatic cutout

CP2000—Owner’s Manual

Page 16

12 Chapter 3—Using the CP2000

disconnects the AC power when the transformer reaches a certain temperature and the POWER indicator goes out. Once the transformer has cooled down, the thermostatic cutout automatically closes, reconnecting the power, the POWER indicator lights up, and normal operation is resumed.

Daisy Chaining Inputs

Since the phone jack and XLR-type connector on each input channel are internally connected, input signals can easily be distributed to other ampliﬁers by daisy chaining the inputs, as shown below.

CHANNEL R CHANNEL L

INPUT

STEREO

BRIDGE

132

STEREO

BRIDGE

132

PARALLEL

OFF ON

YAMAHA SPEAKER PROCESSING

INPUT

PARALLEL

OFF ON

YAMAHA SPEAKER PROCESSING

NEUTRIK

231

NEUTRIK

231

(BRIDGE)

BRIDGE

(–)(+)

CHANNEL R CHANNEL L

SPEAKERS

BRIDGE

(–)(+)

CHANNEL R CHANNEL L

SPEAKERS

221

Mixer

CP2000—Owner’s Manual

ST OUT

Page 17

Troubleshooting 13

Troubleshooting

The following table explains the operation of the CLIP, TEMP, and PROTECTION indicators, typical situations in which they may light up, and what action to take if and when they do.

Symptom Possible Cause Remedy Protection System

Make sure the power

POWER indicator not lit

No sound

Stereo sources sound odd

CLIP indicator lit

TEMP indicator lit

PROTECTION indicator lit

Power cable disconnected or amplﬁer turned off.

Input signal not connected or LEVEL controls turned down.

Incorrect speaker polarity.

The input signal is too high.

The speaker impedance is too low.

There is a short at the speaker terminals, ampliﬁer terminals, or in the speaker cable.

The heatsink temperature has exceeded 85˚C.

The heatsink temperature has exceeded 90˚C.

A DC offset of ±2 V or more was detected at the ampliﬁer’s outputs.

cable is connected properly and the POWER switch is in the ON position.

Check the input connections and LEVEL control settings.

Check the polaity of the speaker connections and correct if necessary.

Reduce the input signal level, or turn down the LEVEL control.

Ensure that the total speaker impedance is not less that 2Ω (STEREO/PARALLEL) or 4Ω (BRIDGE).

Locate and remove the short.

Make sure that the air vents are not blocked and improve the airﬂow around the ampliﬁer.

Contact your Yamaha dealer or service center.

The limiter circuit prevents further clipping distortion.

The heatsink temperature warning circuit activates.

The protection circuit activates, opening the output relay and disconnecting the speakers. The output relay closes automatically when the heatsink has cooled down, or the DC fault is removed.

—

CP2000—Owner’s Manual

Page 18

14 Appendix

Appendix

Speciﬁcations

Power Output Level 8Ω/STEREO 450 W + 450 W

1 kHz, THD+N=1%

1 kHz 20 ms, non-clip

Power Bandwidth

THD+N=0.2% (half power)

Total Harmonic Distortion (THD+N)

20 Hz–20 kHz (half power)

Intermodulation Distortion

60 Hz:7 kHz, 4:1, half power

Frequency Response 8Ω, Po=1W 0 dB, +0.5 dB, –1 dB f=20 Hz—50 kHz

Channel separation

Half power, RL=8Ω LEVEL=max., input 600Ω shunt

Residual Noise

LEVEL=min., 12.7 kHz LPF, IHF-A network

S/N Ratio

12.7 kHz LPF

Damping Factor

RL=8Ω, 1 kHz

4Ω/STEREO 650 W + 650 W 8Ω/BRIDGE 1300 W 2Ω/STEREO 1000 W + 1000 W 4Ω/BRIDGE 2000 W

10 Hz–40 kHz

4-8Ω/STEREO 8Ω/BRIDGE

0.1%

≥70 dB, 1 kHz

≤ –70 dB

104 dB

≥200

Sensitivity

LEVEL=max., rated power into 8Ω

Voltage Gain

LEVEL=max. Input Impedance 30 kΩ (balanced), 15 kΩ (unbalanced)

Front panel

Controls

Rear panel

Input

Connectors

Output

POWER x1 (green)

PROTECTION x1 (red)

Indicators

TEMP x1 (red) heatsink temp ≥85°C

CLIP x2 (red)

SIGNAL

+4 dB

33.8 dB

POWER switch (push on/push off) LEVEL attenuator (31 position) x2

Mode switch (STEREO/BRIDGE/PARALLEL) YAMAHA SPEAKER PROCESSING switch (ON/OFF)

XLR-3-31 type (balanced) L+R 1/4" phone jack (balanced) L+R

1/4" phone jack L+R 5-way binding post x1

x2 (green) output voltage ≥2 V x2 (yellow) output voltage ≥20 V

CP2000—Owner’s Manual

Page 19

Dimensions 15

480

410

416

POWER switch on/off mute

Protection Circuit

Fan Circuit Stop–low speed (50°C)–variable–high Speed (70°C) Limiter Circuit Comp: THD≥0.5%

Power requirements

Idle Power Consumption 30 W 1/8 Power Consumption (4Ω) 400 W Maximum Power Consumption (4Ω) 2000 W

DC detection TEMP (heatsink temp ≥90°C) PC limiter: RL≤1Ω

U.S.A. & Canada 120 V AC, 60 Hz Europe 230 V AC, 50 Hz Australia 240 V AC, 50 Hz

Dimensions (W

Weight 14 kg (30.9 lbs)

AC Power cord length 2.3 m

0 dB=0.775 V rms, half power=1/2 power output level

H × D) 480 × 88 × 416 mm (18.9 x 3.46 x 16.4 inches)

Dimensions

Speciﬁcations and external appearance subject to change without notice.

For European Model Purchaser/User Information speciﬁed in EN55103-1 and EN55103-2.

Inrush Current: 65A Conformed Environment: E1, E2, E3 and E4

CP2000—Owner’s Manual

Page 20

CHANNEL L

(BRIDGE)

(PARALLEL)

CHANNEL R

INPUT

CHANNEL L

ATT

CHANNEL R

ATT

Limiter

Lch Power Amp

• ON

• OFF

• ON

• OFF

YAMAHA

SPEAKER

PROCESSING

INV

PARALLEL

BRIDGE

STEREO

Limiter

Rch Power Amp

PROTECTION

TEMP

SIGNAL

CLIP

Protection

Circuit

Temperature

Sensor

(Heat Sink)

SPEAKERS

CHANNEL L

CHANNEL R

L+R BRIDGE

FAN

–B

+24

–24

POWER CIRCUIT

POWER

POWER SW

Block Diagram

YAMAHA CORPORATION

V617350 R1 1 IP 20 Pro Audio & Digital Musical Instrument Division

P.O. Box 3, Hamamatsu, 430-8651, Japan

NP Printed in Taiwan

Yamaha CP2000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Important Information

Contents

1 Introduction

Welcome

Front Panel

Rear Panel

2 Hookup Examples

Stereo Hookup

Parallel Hookup

Bridge Mode Hookup

3 Using the CP2000

Installation

Connecting Inputs

Connecting Speakers

Connecting S115 and S112 loudspeakers

Turning On the Power

Protection System

Daisy Chaining Inputs

Troubleshooting

Appendix

Dimensions

Block Diagram