Yamaha P2500S Owner'S Manual Download Page 13

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Block Diagram

P7000S, P5000S

P3500S, P2500S

CHANNEL A
[BRIDGE]
[PARALLEL]

INPUT

CHANNEL B

State variable
Active filter

ON
OFF

YAMAHA
SPEAKER
PROCESSING

State variable
Active filter

HPF
LPF

CHANNEL A
ATT

OFF

Limiter

INV

Temperature
Sensor
(Heat Sink)

Protection
Circuit

CLIP

Ach Power Amp

Bch Power Amp

SIGNAL

PROTECTION

TEMP

SPEAKERS

CHANNEL A

A+B BRIDGE

CHANNEL B

SIGNAL

YAMAHA
SPEAKER
PROCESSING

CHANNEL B
ATT

PARALLEL

BRIDGE
STEREO

HPF

Frequency
[25 Hz-150 Hz]

POWER

FAN

+B
E
-B
+24

-24

POWER CIRCUIT

Frequency
[25 Hz-150 Hz]

OFF

LPF

POWER SW

Summary of Contents for P2500S

Page 1: ...POWER AMPLIFIER Owner s Manual E ...

Page 2: ...h the cart stand tripod bracket or table spec ified by the manufacturer or sold with the apparatus When a cart is used use cau tion 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 person nel Servicing is required when the apparatus has been d...

Page 3: ...ons exposed to oil splashes or steam such as near cook ing stoves humidifiers 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 caus ing fire or electric...

Page 4: ... This applies only to products P7000S P5000S distributed by YAMAHA CORPORATION OF AMERICA Connector pin assignments Interference from Cell Phones 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 p...

Page 5: ...ges a high pass filter and SUBWOOFER engages a low pass filter 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 up and sound output is automatically muted whenever the unit s protective circuitry is operating The TEMP indicator lights up if the unit is running hot Variable sp...

Page 6: ...p green when the corresponding channel s output level exceeds 2 Vrms equivalent to 1 2 W into an 8 Ω load or 1 W into a 4 Ω 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 sup plied security cover over the knobs so that the settings will not be disturbed How to...

Page 7: ... are disabled 2 ON OFF switch If you set this switch ON the amplifier adds low frequency compensation so as to enhance speaker output The results the actual change in the low frequency balance will vary accord ing 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 a...

Page 8: ...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 vol ume control knob 5 SPEAKER jacks Neutrik NL4FC Speakon output connectors 5 way binding post output jacks Phone output jacks For minimum speaker impedenance values see page 9 6 GND termin...

Page 9: ...nding post output jacks When using Speakon connector When using phone jack Connection configurations for BRIDGE mode When using 5 way binding post output jacks When using Speakon connector BRIDGE 1 1 STEREO BRIDGE PARALLEL STEREO BRIDGE PARALLEL or Minimum speaker impedance 4 Ω Minimum speaker impedance 4 Ω SPEAKERS 1 1 2 2 1 1 2 3 3 2 LOCK LOCK Minimum speaker impedance 4 Ω SPEAKERS 1 1 2 2 1 1 2...

Page 10: ...ring P3500S P2500S Be sure that the bare wire ends do not jut out from the ter minals and touch the chassis The following shows how the cable should look when correctly attached 4 Reattach the protective cover over the speaker terminals Speakon connector 1 Turn off the POWER switch 2 Insert the Neutrik NL4FC plugs into the Speakon connec tor on the rear of the amplifier and turn clockwise to lock ...

Page 11: ...tands for Electronic Industries Alliance Ventilation panel s Use 1U size blank panel s If mounting up to four amplifiers in an open backed rack Install a ventilation panel as shown below When mounting five or more amplifi ers in an open backed rack and when mounting any number of amplifiers in a close backed rack Install ventilation panels above and below each amplifier as shown below 480 44 Unit ...

Page 12: ... distortion IMD 4 Ω 8 Ω STEREO 0 1 60 Hz 7 kHz 4 1 Half Power 8 Ω BRIDGE Channel Separation Half Power RL 8 Ω 1 kHz 70 dB Vol max input 600 Ω shunt Residual Noise Vol min 20 Hz 20 kHz DIN AUDIO 70 dBu SN Ratio 20 Hz 20 kHz DIN AUDIO 104 dB 103 dB 102 dB 100 dB Damping Factor RL 8 Ω 1 kHz 350 200 Sensitivity Vol max Rated Power 8 Ω 8 dBu 6 dBu 4 dBu 3 dBu Voltage Gain Vol max 32 1 dB Input Impedanc...

Page 13: ...F CHANNEL A ATT OFF Limiter Limiter INV Temperature Sensor Heat Sink Protection Circuit CLIP CLIP Ach Power Amp Bch Power Amp SIGNAL PROTECTION TEMP SPEAKERS CHANNEL A 3 3 1 1 2 2 1 1 1 1 2 2 2 2 A B BRIDGE CHANNEL B SIGNAL YAMAHA SPEAKER PROCESSING CHANNEL B ATT PARALLEL BRIDGE STEREO HPF Frequency 25 Hz 150 Hz POWER FAN B E B 24 24 E POWER CIRCUIT Frequency 25 Hz 150 Hz OFF LPF POWER SW ...

Page 14: ...00 1000 1 10 100 1000 10000 Mode STEREO Both ch Driven RL 4 Ω f 1 kHz Power Consumption W Output Power W 1 10 100 10000 1000 1 10 100 1000 Mode STEREO Both ch Driven RL 4 Ω f 1 kHz Power Consumption W Output Power W 1 10 100 10000 1000 1 10 100 1000 Mode STEREO Both ch Driven RL 4 Ω f 1 kHz Power Consumption W Output Power W 1 10 100 10000 1000 1 10 100 1000 ...

Page 15: ...lifier The TEMP indicator lights up to indicate temperature warning PROTECTION indicator lights The heat sink temperature has exceeded 95 C 203 F Check the amplifier ventilation conditions and take appropriate measures to improve the airflow around the amplifier The thermal protection circuit operates to protect the power transistors Indicator s Possible Cause Remedy Protection Circuit PROTECTION ...

Page 16: ...as Rozas Madrid Spain Tel 91 639 8888 SWEDEN Yamaha Scandinavia AB J A Wettergrens Gata 1 Box 30053 S 400 43 Göteborg Sweden Tel 031 89 34 00 DENMARK YS Copenhagen Liaison Office Generatorvej 6A DK 2730 Herlev Denmark Tel 44 92 49 00 NORWAY Norsk filial av Yamaha Scandinavia AB Grini Næringspark 1 N 1345 Østerås Norway Tel 67 16 77 70 OTHER EUROPEAN COUNTRIES Yamaha Music Central Europe GmbH Sieme...

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