background image

 

The above warning is located on the top of the unit.

 

Explanation of Graphical Symbols

 

The lightning 

fl

ash with arrowhead symbol within 

an equilateral triangle is intended to alert the user to 
the presence of uninsulated “dangerous voltage” 
within the product’s enclosure that may be of 
suf

fi

cient 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.

 

IMPORTANT SAFETY INSTRUCTIONS

 

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 ampli

fi

ers) 

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 

fi

t 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 speci

fi

ed by the 

manufacturer.

12

Use only with the cart, stand, tripod, 
bracket, or table speci

fi

ed 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 quali

fi

ed 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.

 

(98-6500)

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.

C A U T I O N

RISK OF ELECTRIC SHOCK

DO NOT OPEN

 

WARNING

 

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

 

1.  IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!

 

This product, when installed as indicated in the instructions con-
tained in this manual, meets FCC requirements. Modi

fi

cations 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 reason-
able level of assurance that your use of this product in a residential 
environment will not result in harmful interference with other elec-
tronic 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. Compliance with FCC regulations does 

 

* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA.

(class B)

 

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 elimi-
nate 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 

fi

lter/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 co-axial 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 con-
tact Yamaha Corporation of America, Electronic Service Division, 
6600 Orangethorpe Ave, Buena Park, CA90620
The above statements apply ONLY to those products distributed by 
Yamaha Corporation of America or its subsidiaries.

 

FCC INFORMATION (U.S.A.)

Summary of Contents for PA24

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

Page 2: ...R SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE 1 IMPORTANT NOTICE DO NOT MODIFY THIS UNIT This product when installed as indicated in the instructions con tained in this manual meets FCC requirements Modifications not expressly ...

Page 3: ...ing Remove the electric plug from the outlet when the device is not to be used for extended periods of time or during electrical storms When removing the electric plug from the device or an outlet always hold the plug itself and not the cord Pulling by the cord can damage it Before moving the device remove all connected cables When setting up the product make sure that the AC outlet you are using ...

Page 4: ... power immediately and unplug the power cord from the AC outlet Then have the device inspected by qualified Yamaha service personnel Do not use the device for a long period of time at a high or uncomfortable volume level since this can cause permanent hearing loss If you experience any hearing loss or ringing in the ears consult a physician Do not rest your weight on the device or place heavy obje...

Page 5: ...isible two channel level meters a PROTECTION indicator that shows the state of various protection systems power on off detection output protection DC detection a TEMP indicator that indicates heat sink overheating and a REMOTE indicator that indicates the external remote status Variable speed low noise fans ensure high reliability The PC3301N enables parallel connection of multiple high impedance ...

Page 6: ...for normal operation If a DC voltage is detected at the amplifier s outputs Turn off the power and then turn the power back on again If the amplifier overheats When this occurs the TEMP indicator will be lit You should turn off the amplifier and allow it time to cool down See the Precautions section of this Owner s Manual for ways to prevent the amplifier overheating 4 TEMP indicator This indicato...

Page 7: ...s Speakon type cable plugs can be connected here These are five way binding post output jacks 5 DATA PORT jack An amp control device such as the ACD1 or ACU16 C can be connected to the DATA PORT jack for monitoring or controlling the amplifier from the external device 6 AMP ID switch When an amp control device such as the ACD1 or ACU16 C is connected to the DATA PORT jack 5 the AMP ID switch can b...

Page 8: ...t can be connected varies depending on the rated input of the speakers The PC3301N can be connected to speakers with a total rated input of up to 625 W For example if you connect five speakers with a rated input of 5 W 25 W thirty speakers with a rated input of 10 W 300 W and twenty speakers with a rated input of 15 W 300 W the amplifier can be used with a total rated speaker input of 625 W as sho...

Page 9: ... jut out from the terminals and touch the chassis The following shows how the cable should look when correctly attached Note to users in the USA Please use Class 3 wiring PC9501N PC6501N PC4801N Please use Class 2 wiring PC3301N PC2001N 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 connecto...

Page 10: ...ore maximum static pressure Mounting Install the fan kit on the top slot or the top panel of the rack and install a blanking panel between two amps If the unit is rack mounted and transported frequently we recommend that the rear of the unit be supported by fitting a pair of metal brackets one each side Example of mounting The top figure shows an example of a fan kit panels and two fans on the top...

Page 11: ... x 2 800 W x 2 900 W x 2 500 W x 2 600 W x 2 20ms nonclip 4 Ω BRIDGE 4600 W 4600 W 3000 W 3200 W 2400 W 2400 W 1600 W 1800 W 1000 W 1200 W Power Bandwidth MIN 10 Hz 40 kHz THD N 0 5 Half Power Total Harmonic Distortion THD N MAX 0 1 20 Hz 20 kHz Half Power Frequency Response MAX 0 dB RL 8 Ω Po 1 W TYP 0 dB f 20 Hz 50 kHz MIN 1 dB Intermodulation distortion IMD MAX 0 1 60 Hz 7 kHz 4 1 Half Power Ch...

Page 12: ...12 Block Diagram ...

Page 13: ...13 Dimensions 480 88 456 46 4 380 26 25 30 370 30 25 Unit mm ...

Page 14: ...lifier s output circuit Consult your dealer or aYamaha service center The output relay activates to protect the speaker system Line Current A Power W Thermal Dissipation 100 120V 230 240V In Out Dissipated Btu h kcal h standby 0 08 0 04 5 0 5 17 4 idle 1 0 0 5 55 0 55 188 47 1 8 power 8 Ω ch 8 2 4 5 500 250 250 853 215 4 Ω ch 10 5 5 8 682 375 307 1050 264 1 3 power 8 Ω ch 16 8 9 2 1093 667 426 145...

Page 15: ...7 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 proc...

Page 16: ...ns 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 RUSSIA Yamaha Music Russia Office 4015 entrance 2 21 5 Kuznetskii Most street Moscow 107996 Russia Tel 495 626 0660 OTHER EUROPEAN COUNTRIES Ya...

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