Yamaha CP2000 User Manual

POWER AMPLIFIER
Owner’s Manual
POWER
ON OFF
TEMP
PROTECTION
POWER
15
20
25
30 30
40
10
3
0
Keep This Manual For Future Reference.
LLR
6
CLIP
LEVEL
–dB
15
20
25
40
10
6
3
0
R
E
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.

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
i
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 airow is not adequate, the unit will heat up inside and may cause a re.
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 amplier 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 re 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 amplier for any purpose other than driving loudspeakers.
CP2000—Owner’s Manual
ii

Contents

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.
Copyright
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.
© 2000 Yamaha Corporation. All rights reserved.
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
CP2000Owners Manual
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1 Introduction

Welcome

Thank you for choosing the Yamaha CP2000 Power Amplier. Based on a new improved version of Yamaha’s EEEngine amplier technology, the CP2000 is a versatile two-channel power amplier, 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.
bridged, 1,300 W into 8
stereo, 450 W+450 W into 8
bridged.
stereo.
Introduction
1
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.
CP2000Owners Manual
2
Chapter 1—Introduction

Front Panel

POWER
TEMP
PROTECTION
POWER
ON OFF
1
2 3 4
POWER switch
A
This is the main POWER switch. Press to turn on the amplier; press again to turn off. See “Turning On the Power” on page 11 for more information.
6
POWER AMPLIFIER
15
20
25
30 30
40
10
0
L
7
L
R
CLIP
LEVEL
6
3
–dB
5
15
20
25
40
10
6
3
0
R
B
POWER indicator
This indicator lights up when the CP2000 is turned on.
C
PROTECTION indicator
This indicator shows the status of the protection system. See “Protection System” on page 11 for more information.
D
TEMP indicator
This indicator lights up if the temperature of the CP2000s 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
E
These controls are used to adjust the volume level of each channel. Since the gain of each amplier channel is xed, 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
F
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 channels 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.
G
CP2000Owners 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.
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