Yamaha P7000S P5000s P3500s P2500S
Yamaha P7000S P5000s P3500s P2500s Home Cinema Amplifier, size: 1.1 MB
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P7000S P5000S P3500S P2500S
P7000S Rear Panel
Reliable, professional-quality power amplification for a broad range of applications.
In 4 bridged mode the P7000S delivers 3200 watts, the P5000S 2600 watts, the P3500S 2000 watts, and the P2500S
1300 watts. Yamaha's exclusive EEEngine technology significantly reduces power consumption and heat generation. Independent sweepable high-pass and low-pass filters on each channel so you can optimize output for subwoofer or full range systems. Neutrik Speakon output jacks and 1/4-inch output jacks for each channel, in addition to 5-way binding post. Balanced XLR and 1/4-inch TRS jacks are provided for channel input. Variable-speed fans offer quiet, efficient cooling. Comprehensive protection includes power on/off muting, DC detection, thermal protection, current limiting, and a protective cover for the attenuators. YS Processing (Yamaha Speaker Processing) achieves optimum matching with Yamaha Club Series loudspeaker systems.
Model Output Power 1kHz, THD+N = 1% 1kHz, 20ms burst 20Hz ~ 20kHz, THD+N = 0.1% 8 bridge bridge 8 bridge Voltage Gain Input Sensitivity SN Ratio Power Consumption THD+N Frequency Response Crosstalk Damping Factor Maximum Input Level Input Impedance Controls Front panel Rear panel Connectors Indicators Load Protection Amplifier Protection Cooling Fan Power Requirements Dimensions (W x H x D) Weight Included Accessories * Half power = 1/2 power output level Input Output RL=8 RL=8 20Hz~20kHz, DIN AUDIO 1/8 power (4 pink noise) Idle 20Hz~20kHz, 1/2 power, RL=4 RL=8, Po=1W, 20Hz - 50kHz 1kHz, half power, 8 Att. max, input 600 shunt RL=8, 1kHz +22dBu 30k (balanced), 15k (unbalanced) POWER switch x 1 (push on/push off), Attenuator x 2 (31position) MODE switch x 1 (STEREO/BRIDGE/PARALLEL), FILTER switch x 2 (SUB WOOFER/LOW CUT/OFF), FREQUENCY control x 2 (25Hz ~ 150Hz) (12dB/oct), YS PROCESSING switch x 1 (ON/OFF) XLR-3-31 type x 2, 1/4" TRS phone x 2 Neutrik SPEAKON NL4 x 2, 5-way binding post x 2 pairs, 1/4" phone x 2 POWER x 1 (Green), PROTECTION x 1 (Red), TEMP x 1 (Red) heatsink temp 85C, YS PROCESSING x 1 (Yellow), SIGNAL x 2 (Green), CLIP x 2 (Red) POWER switch on/off mute, DC-fault: Amplifier shuts down automatically, Clip limiting: THD 0.5% Thermal: Output Mute (heatsink temp 90C) (Operation not restored automatically), VI limiter (RL 1): Output limit Variable-speed fan x 2 120V, 220V-240V; 50Hz/60Hz 480 x 88 x 456mm (18-7/8" x 3-7/16" x 17-15/16") 12kg (26.5lbs) Security cover1, Owner's manual 15kg (33.1lbs) 14kg (30.9lbs) Variable-speed fan x 1 Less than 0.1% +0dB, -1.5dB Less than -70dB More than 350 More than 200 +8dBu 104dB 650W 35W +6dBu 103dB 500W 35W P7000S 1100W x 2 750W x 2 2200W 1600W x 2 3200W 950W x 2 700W x 2 650W x 2 (230V) 1900W P5000S 750W x 2 525W x 2 1500W 1300W x 2 2600W 700W x 2 500W x 2 1400W 32dB +4dBu 102dB 450W 30W +3dBu 100dB 320W 25W P3500S 590W x 2 390W x 2 1180W 1000W x 2 2000W 450W x 2 350W x 2 900W P2500S 390W x 2 275W x 2 780W 650W x 2 1300W 310W x 2 250W x 2 620W
unit : mm
30 374.46 5.5 456
Explanation of Graphical Symbols
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 products 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 product.
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.
The above warning is located on the top of the unit
IMPORTANT SAFETY INSTRUCTIONS
Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturers 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 12 receptacles, and the point where they exit from the apparatus. Only use attachments/accessories specified by the manufacturer. 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. Unplug this apparatus during lightning storms or when unused for long periods of time. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as powersupply 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.
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord
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 colored GREEN or 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. (3 wires)
This mark indicates a dangerous electrically live terminal. When connecting an external wire to this terminal, it is necessary either to have a person who have received 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.
For safe operation
Connect this units power cord only to an AC outlet of the type stated in this Owners Manual or as marked on the unit. Failure to do so is a re and electrical shock hazard. Do not allow water to enter this unit or allow the unit to become wet. Fire or electrical shock may result. 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 re and electrical shock hazard. Do not place heavy objects, including this unit, on top of the power cord. A damaged power cord is a re and electrical shock hazard. In particular, be careful not to place heavy objects on a power cord covered by a carpet.
Do not modify the unit. Doing so is a re and electrical shock hazard. If lightning begins to occur, turn off the power switch of the unit as soon as possible, and unplug the power cable plug from the electrical outlet. If there is a possibility of lightning, do not touch the power cable plug if it is still connected. Doing so may be an electrical shock hazard.
In case an abnormality occurs during operation
Do not scratch, bend, twist, pull, or heat the power cord. A damaged power cord is a re and electrical shock hazard. Do not remove the units cover. You could receive an electrical shock. If you think internal inspection, maintenance, or repair is necessary, contact your dealer.
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 re and electrical shock hazard. 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, re or electrical shock may result. 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 re and electrical shock hazard.
Keep this unit away from the following locations: - Locations exposed to oil splashes or steam, such as near cooking stoves, humidiers, etc. - Unstable surfaces, such as a wobbly table or slope. - Locations exposed to excessive heat, such as inside a car with all the windows closed, or places that receive direct sunlight. - Locations subject to excessive humidity or dust accumulation. Do not place the power cord close to a heater. It may melt, causing re or electrical shock. 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. 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 re hazard. In particular, do not - place the unit on its side or upside down, - place the unit in any poorly-ventilated location such as a bookcase or closet (other than on the dedicated rack), - cover the unit with a table cloth or place it on a carpet or bed.
Allow enough free space around the unit for normal ventilation. This should be: 5 cm at the sides, 10 cm behind, and 10 cm above. If the airow is not adequate, the unit will heat up inside and may cause a re. To mount several of these units in a standard EIA rack, refer to the rack mounting instructions on page 11. To relocate the unit, turn the power switch off, remove the power plug from the AC outlet, and remove all connecting cables. Damaged cables may cause re or electrical shock.
Use only speaker cables when connecting speakers to amplier outputs. Using other types of cables is a re hazard. Turn off all musical instruments, audio equipment, and speakers when connecting to this unit. Use the correct connecting cables and connect as specied. Always lower the volume control to minimum before turning on the power to this unit. A sudden blast of sound may damage your hearing. Do not use this amplier for any purpose other than driving loudspeakers. If you know you will not use this unit for a long period of time, such as when going on vacation, remove the power plug from the AC outlet. Leaving it connected is a potential re hazard.
For correct operation
Connector pin assignments
Interference from Cell Phones
XLR-type connectors are wired as follows Pin 1: ground; Pin 2: hot (+); Pin 3: cold ().
Use of a mobile phone near this unit may induce noise. If noise occurs, move the phone further from the unit.
Always turn the power off when the amplier is not in use. Illustrations in this manual are for explanatory purposes only, and may not match the actual appearance of the product during operation. Company names and product names used in this Owner's Manual are trademarks or registered trademarks of their respective owners.
FCC INFORMATION (U.S.A.)
1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!
This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modications 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.
* This applies only to products (P7000S, P5000S) distributed by YAMAHA CORPORATION OF AMERICA.
Thank you for your purchase of the YAMAHA P7000S, P5000S, P3500S or P2500S power amplier. These P-series ampliers fully incorporate Yamahas renown technological expertise, and offer high reliability, rock-solid stability, and superb acoustic characteristicsall in a trim, 2U-sized package.
With two types of input jacks (balanced XLR and balanced phone) and three types of output jacks (Speakon, 5-way binding post, and phone), the P series is suitable for a wide variety of applications and installed systems. The unit offers three operating modes: STEREO (where Channels A and B operate independently), PARALLEL (where the unit outputs a mono source through twin amplier systems), and BRIDGE (where the unit operates as a single high-power amp). Each channel is equipped with an independent OFF/LOW CUT/SUBWOOFER switchwhere LOW CUT engages a high-pass lter, and SUBWOOFER engages a low-pass lter. With LOW CUT or SUBWOOFER selected, you can adjust the cutoff frequency from 25 to 150 Hz. Each channel has its own SIGNAL and CLIP indicators. The PROTECTION indicator lights upand sound output is automatically mutedwhenever the units protective circuitry is operating. The TEMP indicator lights up if the unit is running hot. Variable-speed low-noise fans ensure high reliability. This Owners Manual covers the four models: P7000S, P5000S, P3500S and P2500S power ampliers. Please read through this manual carefully before beginning use, so that you will be able to take full advantage of the ampliers superlative features and enjoy trouble-free operation for years to come. After reading through the manual, please store it in a safe place.
Controls and Functions.. 6
Front Panel... 6 Rear Panel... 7
Speaker Connections.. 9
Speaker impedance.. 9 Wiring... 10
Rack Mounting.. 11 Specications.. 12
General Specifications.. 12 Block Diagram... 13 Dimensions... 14 Performance Graphs... 14
Controls and Functions
I Front Panel
1 POWER switch and indicator
Press to toggle the power on or off. The POWER indicator lights up green when the power is ON.
2 TEMP indicator
Lights up red if the heat sink temperature exceeds 85C (185F).
How to install the security cover (1) Use the supplied hex wrench to remove the four attachment screws from the amplier. (2) Adjust the security cover to the position of screw holes. Fasten it into place using the same screws.
3 PROTECTION indicator
Lights up red to indicate that protection is in effect. Specically, lights up if the heat sink overheats, or if a DC voltage is detected at the amplier outputs. Also lights up for about three seconds at time of power-on, as the amp gets ready to operate. To provide protection, the unit will not output any sound from the speakers while this indicator is lit up. When start-up is completed or the problem is corrected, the indicator goes off and normal operation resumes.
4 CLIP indicator
Lights up red when the output signal distortion on the corresponding channel rises above 1%indicating that clipping has occurred because the signal level is too high.
Lights up yellow if the YS PROCESSING switch on the rear panel is set ON. (See page 7.)
8 Air intakes
The amplier uses forced-air cooling. The cooling fans draw air in from the front and exhaust it through the rear. Please be sure that you do not block the air intakes or exhaust vents. NOTE: The fans do not come on at initial power-on, but will switch on automatically when the temperature of the heat sink rises above 50C (122F). The fan speed will then vary automatically as the temperature changes.
5 SIGNAL indicator
Lights up green when the corresponding channels output level exceeds 2 Vrms (equivalent to 1/2 W into an 8 load, or 1 W into a 4 load).
6 Volume control knobs
Each control knob adjusts the volume of the corresponding channel, in 31 steps from dB to 0 dB. NOTE: If you wish to lock in the knob settings, you can fasten the supplied security cover over the knobs so that the settings will not be disturbed.
I Rear Panel
SUB LOW CUT WOOFER OFF SUB OFF WOOFER LOW CUT
STEREO BRIDGE PARALLEL
+ 1+ - 1-
1+ + 1- 2+ + 2- -
1 FILTER switch and FREQUENCY adjustment knob (One pair for each channel)
Use these controls to select the lter type and adjust the cutoff frequency on each channel (A and B). You use the FILTER switch to select the lter, as follows.
If you set this switch ON, the amplier adds low-frequency compensation so as to enhance speaker output. The results (the actual change in the low-frequency balance) will vary according to the speaker type. Note that this switch is effective only if the FILTER switch is set to OFF. NOTE: This feature provides improved frequency reponse on speakers such as the YAMAHA S112 and S115.
SUB OFF WOOFER LOW CUT
OFF.. Do not use any lter. SUBWOOFER.. Use a low-pass lter. The amplier outputs the frequencies that are lower than the cutoff set by the FREQUENCY adjustment knob. LOW CUT. Use a high-pass lter. You can use this setting to lter out unneeded low or subsonic frequencies. If you select SUBWOOFER or LOW CUT, you can then use the FREQUENCY adjustment knob to adjust the cutoff frequency. The adjustment range is 25 Hz to 150 Hz.
3 INPUT jacks (Channels A, B)
Two jack types are provided for each channel. Note that if you are using BRIDGE or PARALLEL mode, only the Channel A jacks are effective. XLR-3-31 jack The XLR-3-31 input jacks are wired as shown below.
hot ground cold
Phone jack Phone jacks are wired as follows.
25 Hz-150 Hz 25 Hz to 150 Hz
NOTE: If the amplifer is set to BRIDGE mode, only the switch and knob for Channel A are effective. (The Channel B frequency controls are disabled.)
4 STEREO/PARALLEL/BRIDGE switch
Use this switch to select the operating mode. STEREO mode Channels A and B operate independently (as with a conventional stereo amplier). The Channel A input goes to the Channel A output jacks, and the Channel B input goes to the Channel B output jacks. PARALLEL mode The Channel A input signal is output through both the Channel A and Channel B output jacks. The Channel B input jacks do not function. Channel A and B volumes can be independently adjusted. BRIDGE mode The Channel A input signal is output from the BRIDGE output jacks. To adjust the volume, you must use the Channel A volume control knob.
5 SPEAKER jacks
Newtrik NL4FC Speakon output connectors, 5-way binding post output jacks, Phone output jacks For minimum speaker impedenance values, see page 9.
6 GND terminal
This is a screw-type ground terminal. If you are having a problem with hum or noise, use this terminal to connect to ground or to connect to the chassis of the mixer, preamp, or other device in your system.
I Speaker impedance
Speakers can be connected to the amplier as shown below. Note that speaker impedance will vary according to the connection method and the number of speakers. Please be sure that your speakers impedance is not less than the relevant minimum value indicated below.
Connection congurations for STEREO and PARALLEL modes
When using 5-way binding post output jacks
Connection congurations for BRIDGE mode
Minimum speaker impedance:
When using Speakon connector
1+ 12+ 2-
When using phone jack
5-way binding post
(1) Turn off the POWER switch. (2) Remove the cover attachment screws and remove the protective cover from the speaker terminals.
(1) Turn off the POWER switch. (2) Insert the Neutrik NL4FC plugs into the Speakon connector on the rear of the amplier, and turn clockwise to lock.
Neutrik NL4FC plugs
CHANNEL A Screw
STEREO or PARALLEL
1+ A+ A B+ B 1 2+ 2 Neutrik NL4FC plugs CHANNEL B 1+ 1 B+ B
BRIDGE 1+ 1 2+ 2 +
(3) Remove about 15 mm of insulation from the end of each speaker cable, and pass the bare wire through the holes in the appropriate speaker terminals. Tighten the terminals to securely clamp the wires. Refer to page 9 for speaker polarities.
Speaker cable * Actual size
(1) Turn off the POWER switch. (2) Insert the phone plug into the jack on the rear of the amplier.
Note to users in the USA: Please use Class 3 wiring. (P7000S, P5000S) Please use Class 2 wiring. (P3500S, P2500S)
Be sure that the bare wire ends do not jut out from the terminals and touch the chassis. The following shows how the cable should look when correctly attached.
(4) Reattach the protective cover over the speaker terminals.
Mounting in a standard EIA rack
If you are mounting multiple power ampliers in a rack, be sure to install ventilation panel(s) as shown below. Also be sure to use metal brackets (one on each side) to support the rear of each amplifer.
Note: EIA stands for Electronic Industries Alliance.
Use 1U-size blank panel(s).
If mounting up to four ampliers in an open-backed rack
Install a ventilation panel as shown below.
When mounting ve or more ampliers in an open-backed rack, and when mounting any number of ampliers in a close-backed rack
Install ventilation panels above and below each amplier, as shown below.
Ventilation panel (Attach to the front or rear of the rack.)
I General Specications
Power Output Level (Rated Power) 1 kHz THD + N = 1% 8 /STEREO 4 /STEREO 8 /BRIDGE 8 /STEREO 20 Hz 20 kHz THD + N = 0.1% 1 kHz 20 ms non-clip Power Bandwidth Total Harmonic Distortion (THD + N) 20 Hz 20 kHz, Half Power Frequency Response Intermodulation distortion (IMD) 60 Hz:7 kHz, 4:1, Half Power Channel Separation Vol. max Residual Noise Vol. min. SN Ratio Damping Factor Sensitivity (Vol. max.) Rated Power 8 Voltage Gain (Vol. max.) Input Impedance Controls 4 /STEREO 8 /BRIDGE P7000S 750 W W W W W 2 (European Model) 950 W W 1 P5000S 525 W W W W W W 1 P3500S 390 W W W W W W 1 P2500S 275 W W W W W W W W 1
2 /STEREO 1600 W W W /BRIDGE 3200 W W W 1 Half Power 10 Hz 40 kHz (THD + N = 0.5 %) 4 8 /STEREO 0.1 % 8 /BRIDGE RL = 8 , Po = 1 W 0 dB, +0.5 dB, 1 dB f = 20 Hz 50 kHz 4 8 /STEREO 0.1 % 8 /BRIDGE Half Power RL = kHz 70 dB input 600 shunt 20 Hz 20 kHz (DIN AUDIO) 70 dBu 20 Hz 20 kHz (DIN AUDIO) 104 dB 103 dB 102 dB RL = 8 , 1 kHz +8 dBu +6 dBu +4 dBu 32.1 dB 30 k/balanced, 15 k/unbalanced Front Panel POWER switch (Push on/Push off) Two 31-step Volume control knobs (one per ch) Rear Panel MODE switch (STEREO/PARALLEL/BRIDGE) Two FILTER switches (SUBWOOFER/LOW CUT/OFF) Two fc knobs (25 to 150 Hz) YS Processing switch (ON/OFF) INPUT XLR-3-31 jacks (one per ch) 1/4-inch TRS phone jacks (one per ch) OUTPUT Speakon jacks (one per ch) 5-way binding posts 1/4-inch phone jacks (one per ch) POWER 1 (Green) 1 (Red) PROTECTION TEMP 1 (Red) (heatsink temp 85C) CLIP SIGNAL YS Processing
2 (Red) 2 (Green)
100 dB +3 dBu
Amp. protection Limiter Cooling Power Requirements
1 (Yellow) POWER switch ON/OFF muting DC-fault power supply DC detection shutdown Temp. detection (heat sink temp 90C), VI limiter (RL 1 ) Comp: THD 0.5 %
United States & Canada Europe Australia Idling 1/8 output power, 4 Maximum output, 4
Dimensions (W H D) Weight Included Accessories
Dual variable-speed fan Single variable-speed fan 120 V, 60 Hz 230 V, 50 Hz 240 V, 50 Hz 35 W 35 W 30 W 25 W 700 W 550 W 450 W 320 W 4000 W 3000 W 2000 W 1600 W 456 mm 12 kg 12 kg 15 kg 14 kg Security cover (with a hex wrench), Owners Manual
0 dBu=0.775 Vrms, Half Power=1/2 Power Output Level (Rated Power)
Specications and descriptions in this owners manual are for information purposes only. Yamaha Corp. reserves the right to change or modify products or specications at any time without prior notice. Since specications, equipment or options may not be the same in every locale, please check with your Yamaha dealer. European models Purchaser/User Information specied in EN55103-1 and EN55103-2. Inrush Current: 32A (P7000S, P5000S)/65A (P3500S)/55A (P2500S) Conforms to Environments: E1, E2, E3 and E4
I Block Diagram
BA State variable Active filter CHANNEL A [BRIDGE] [PARALLEL]
HPF LPF OFF
CHANNEL A ATT Limiter
Ach Power Amp
SPEAKERS 3 1+ SIGNAL 12+ 22 CHANNEL A
Frequency [25 Hz-150 Hz] YAMAHA SPEAKER PROCESSING INV Temperature Sensor (Heat Sink) CLIP
ON OFF YAMAHA SPEAKER PROCESSING
1 A+B BRIDGE 1
CLIP CHANNEL B CHANNEL B ATT OFF LPF HPF Frequency [25 Hz-150 Hz] POWER PARALLEL BRIDGE STEREO Bch Power Amp Limiter SIGNAL 1-
2+ 2 21+ 3 CHANNEL B
State variable Active filter
POWER CIRCUIT POWER SW
+B E -B +24 E -24
I Performance Graphs
Mode:STEREO Both ch Driven RL=4 , f=1 kHz
Power Consumption [W]
Output Power [W]
The following table lists the main causes of abnormal operation and the corrective measures required, as well as the protective circuit operation in each case.
Indicator(s) Possible Cause There is a short at a speaker terminal, amplier terminal, or wire. CLIP indicator lights. Remedy Locate and correct the cause of the short. The PC limiter circuit operates to protect the power transistors. Protection Circuit
Use a speaker system with an impedance of at least 4 The amplier load is excessive. (STEREO/PARALLEL mode) or 8 (BRIDGE mode). The heat sink temperature has exceeded 85C (185F). Check the ventilation slots, and provide better airow around the amplier.
TEMP indicator lights.
The TEMP indicator lights up to indicate temperature warning.
PROTECTION indicator lights.
The heat sink temperature has exceeded 95C (203F).
Check the amplier ventilation The thermal protection circuit conditions and take appropriate operates to protect the power measures to improve the transistors. airow around the amplier.
Indicator(s) Possible Cause Remedy Protection Circuit
A DC voltage of 2 V or greater Consult your dealer or the The relay operates to protect was generated in the power nearest Yamaha service center. the speaker system. ampliers output circuit.
Yamaha Music Latin America, S.A. Sucursal de Argentina Viamonte 1145 Piso2-B 1053, Buenos Aires, Argentina Tel: 1-4371-7021
YS Copenhagen Liaison Ofce Generatorvej 8B DK-2730 Herlev, Denmark Tel: 49 00
Siam Music Yamaha Co., Ltd. 121/60-61 RS Tower 17th Floor, Ratchadaphisek RD., Dindaeng, Bangkok 10320, Thailand Tel: 02-641-2951
PANAMA AND OTHER LATIN AMERICAN COUNTRIES/ CARIBBEAN COUNTRIES
Yamaha Music Latin America, S.A. Torre Banco General, Piso 7, Urbanizacin Marbella, Calle 47 y Aquilino de la Guardia, Ciudad de Panam, Panam Tel: +507-269-5311
Norsk lial av Yamaha Scandinavia AB Grini Nringspark 1 N-1345 sters, Norway Tel: 77 70
THE PEOPLES REPUBLIC OF CHINA
Yamaha Music & Electronics (China) Co., Ltd. Shanghai Branch United Plaza 25F 1468 Nan Jing Road West Jingan Shanghai 200040, China Tel: 21-6247-2211
OTHER EUROPEAN COUNTRIES
Yamaha Music Central Europe GmbH Siemensstrae 22-34, 25462 Rellingen, Germany Tel: +49-4101-3030
THE UNITED KINGDOM
Yamaha-Kemble Music (U.K.) Ltd. Sherbourne Drive, Tilbrook, Milton Keynes, MK7 8BL, England Tel: 01908-366700
OTHER ASIAN COUNTRIES
Yamaha Corporation, Asia-Pacic Music Marketing Group Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650 Tel: +81-53-460-2313
Yamaha Music Central Europe GmbH Siemensstrae 22-34, 25462 Rellingen, Germany Tel: 04101-3030
Yamaha Music Australia Pty. Ltd. Level 1, 99 Queensbridge Street, Southbank, Victoria 3006, Australia Tel: 3-9693-5111
Yamaha Music Central Europe GmbH, Branch Switzerland Seefeldstrasse 94, 8008 Zrich, Switzerland Tel: 01-383 3990
COUNTRIES AND TRUST TERRITORIES IN PACIFIC OCEAN
Yamaha Music Central Europe GmbH, Branch Austria Schleiergasse 20, A-1100 Wien, Austria Tel: 01-60203900
Yamaha Music Gulf FZE LB21-128 Jebel Ali Freezone P.O.Box 17328, Dubai, U.A.E. Tel: +971-4-881-5868
Yamaha Music Central Europe, Branch Nederland Clarissenhof 5-b, 4133 AB Vianen, The Netherlands Tel: 0347-358 040
HEAD OFFICE Yamaha Corporation, Pro Audio & Digital Musical Instrument Division
Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650 Tel: +81-53-460-2441
Yamaha Manual Library http://www2.yamaha.co.jp/manual/english/ M.D.G., Pro Audio & Digital Musical Instrument Division, Yamaha Corporation 2003 Yamaha Corporation WB09700 306CRCR1.3-01A0 Printed in China
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