Sherwood A-965 User's Manual
Contents
1. VARIOUS CONNECTIONS OF SPEAKER CORDS General connection using the bare cords Connection using the spade plugs ENGLISH 1 Carefully strip about 10 mm 3 8 of insulation and 1 Loosen the knob and insert the spade plug twist the wire tip Eca 0 2 Loosen the knob and insert the wire 2 Tighten the knob to fix 3 Tighten the knob to fix the wire in place Q 0 O Connection using the banana plugs 1 Tighten the knob 2 Insert the plug fully into the hole on the knob a I w c ke a l 9 z ii SPEAKER PLACEMENT Ideal speaker placement varies depending on the size of your room and the wall coverings etc The typical example of speaker placement and recommendations are as follows m Front left and right speakers and center speaker Place the front speakers with their front surfaces as flush with TV or monitor screen as possible Place the center speaker between the front left and right speakers and no further from the listening position than the front speakers Place each speaker so that sound is aimed at the location of the listener s ears when at the main listening position m Surround left and right speakers Place the surround speakers approximately 1 meter 40 inches above the ear level of a seated listener on the direct left and right of them or slightly behind m Surround back left and right speakers Pla2. Grounding or Polarization This product may be equipped with a polarized alternating current line plug a plug having one blade wider than the other This plug will fit into the power outlet only one way This is a safety feature If you are unable to insert the plug fully into the outlet try reversing the plug If the plug should still fail to fit contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of the polarized plug Alternate Warnings This product is equipped with a three wire grounding type plug a plug having a third grounding pin This plug will only fit into a grounding type power outlet this is a safety feature If you are unable to insert the plug into the outlet contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of the grounding type plug 13 Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them paying particular attention to cords at plugs convenience receptacles and the point where they exit from the product 14 Outdoor Antenna Grounding If an outside antenna or cable System is connected to the product be sure the antenna or cable System is grounded so as to provide some protection against voltage surges and built up static charges Article 810 of the National Electrical Code ANSI NFPA 70 provides information with regard to proper groun
3. c 2 ro tU C 5 o 3 o ED 5 B ga LL a E oo 37 L oO o T T Front right Em meur Front left e ne Surround Surround right left Surround Surround back right back left Be sure to connect speakers firmly and correctly according to the channel left and right and the polarity and If the connections are faulty no sound will be heard from the speakers and if the polarity of the speaker connections is incorrect the sound will be unnatural and lack bass Only when enjoying either 6 1 or 7 1 channel surround playback connect either the surround back left speaker only or both of surround back speakers To emphasize the deep bass sounds connect a powered subwoofer to the pre amplifier such as Sherwood P 965 not to this power amplifier For details refer to the operating instructions of the pre amplifier For installing the speakers refer to VARIOUS CONNECTIONS OF SPEAKER CORDS on page 7 and SPEAKER PLACEMENT on page 8 After installing the speakers first adjust the speaker settings on your pre amplifier according to your environment and speaker layout For details refer to the operating instructions of the pre amplifier CAUTION Be sure to use the speakers with the impedance of 4 80 Do not let the bare speaker wires touch each other or any metal part of this unit This could damage this unit and or the speakers
4. invalidate the warranty PROBLEM POSSIBLE CAUSE REMEDY No power The AC input cord is disconnected Connect the cord securely Poor connection at AC wall outlet or the outlet Check the outlet using a lamp or another is inactive appliance No sound Speaker cords are disconnected Check the speaker connections Incorrect connections between the components Incorrect operation of the pre amplifier Make connections correctly Check the functions of the pre amplifier and operate correctly No sound from one channel Speaker cords are connected incorrectly or incompletely Incorrect connections between the components Defective speaker Check the speaker connections and reconnect them Make connections correctly Check the speaker and repair it or replace by new one Excessive hum at normal volume level The hum is induced from other components Defective connection cords Place the power amplifier away from the pre amplifier and the record player Replace by new ones Distorted sound The power amplifier overdriven Too low impedance speakers are connected Decrease the volume on the pre amplifier Check the speakers and use the speakers with the impedance of 4 80 10 Specifications Amplifier Section Power output stereo mode 8 Q THD 0 02 1 kHz 2x 125 W 4 Q THD 0 02 1 kHz 2x 170 W 7 CH mode full chann
5. ENGLISH Notes Do not place other equipment on top of this unit so that the radiated heat can be properly dispersed e When installing in racks etc leave more than 30 cm 12 of space at the top 1 2 4 3 1 DC TRIGGER IN In case that this unit is connected to Sherwood pre amplifier t Sh d lifier P 965 P 965 connect this jack to the 1 jack of DC TRIGGER idis aiiis OUTs of P 965 directly for system power control i For details refer to the operating instructions of P 965 2 DC TRIGGER OUT Note DC TRIGGER IN 12V When making DC TRIGGER connection you should use the stereo mini cord supplied with this unit not amono mini cord 2 GROUND TERMINAL If necessary connect this terminal to the GND of other component 3 AC INLET Plug the supplied AC input cord into this AC INLET and then into the wall AC outlet Note Do not use an AC input cord other than the one supplied with this unit The AC input cord supplied is designed for use with this unit and should not be used with any other device To a wall AC outlet E 4 CHANEL INPUTs and SPEAKER TERMINALs rI o Pre amplifier S i lu o 5 o x x o o On 5 5 E 33 E 23 82 B o o co aS 5 5 3 oo o co To 2 o 2 lt lt
6. G Sherwood NEWCASTLE OPERATING INSTRUCTIONS A 965 7 CH Power Amplifier Introduction READ THIS BEFORE OPERATING YOUR UNIT RISK OF ELECTRIC SHOCK Within the product s enclosure that may be of DO NOT OPEN sufficient magnitude to constitute a risk of electric shock to persons a l 9 z i This symbol is intended to alert the user to the CAU TI ON presence of uninsulated dangerous voltage CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT This symbol is intended to alert the user to the REMOVE COVER OR BACK NO presence of important operating and USER SERVICEABLE PARTS maintenance servicing instructions in the INSIDE REFER SERVICING TO literature accompanying the appliance QUALIFIED SERVICE PERSONNEL WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE Note to CATV System Installer This reminder is provided to call the CATV system installer s attention to Article 820 40 of the NEC that provides guidelines for proper grounding and in particular specifies that the cable ground shall be connected to the grounding system of the building as close to the point of cable entry as pracitcal FCC INFORMATION This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interfere
7. a fiche dans la borne correspondante de la prise et pousser jusqu au fond Avoid high temperatures Allow for sufficient heat dispersion when installed on a rack Keep the set free from moisture water and dust Do not let foreign objects in the set Handle the power cord carefully Hold the plug when unplugging the cord Unplug the power cord when not using the set for long periods of time Do not obstruct the ventilation holes Do not let insecticides benzene and thinner come in contact with the set Never disassemble or modify the set in any way SAFETY INSTRUCTION Read Instructions All the safety and operating instructions should be read before the product is operated 2 Retain instructions The safety and operating instructions should be retained for future reference 3 Heed Warnings All warnings on the product and in the operating instructions should be adhered to 4 Follow Instructions All operating and use instructions should be followed 5 Cleaning Unplug this product from the wall outlet before cleaning Do not use liquid cleaners or aerosol cleaners Use a damp cloth for cleaning 6 Attachments Do not use attachments not recommended by the product manufacturer as they may cause hazards 7 Water and Moisture Do not use this product near water for example near a bath tub wash bowl kitchen sink or laundry tub in a wet basement or near a swimming pool and the like 8 A
8. ccessories Do not place this product on an unstable cart stand tripod bracket or table The product may fall causing serious injury to a child or adult and serious damage to the product Use only with a cart stand tripod bracket or table recommended by the manufacturer or sold with the product Any mounting of the product should follow the manufacturer s instructions and should use a mounting accessory recommended by the manufacturer 9 A product and cart combination should be moved with care Quick Stops excessive force and uneven surfaces may cause the product and cart combination to overturn 10 Ventilation Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating and these openings must not be blocked or covered The openings should never be blocked by placing the product on a bed sofa rug or other similar surface This product should not be placed in a built in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer s instructions have been adhered to 11 Power Sources This product should be operated only from the type of power source indicated on the marking label If you are not sure of the type of power supply to your home consult your product dealer or local power company For products intended to operate from battery power or other sources refer to the operating instructions 12
9. ce the surround back speakers at the back facing the front at a narrower distance than the front speakers When using a single surround back speaker place it at the rear center facing the front at a slightly higher position 0 to 10 inches than the surround speakers We recommend installing the surround back speaker at a slightly downward facing angle This effectively prevents the surround back channel signals from reflecting off the TV or screen at the front center resulting in interference and making the sense of movement from the front to the back less sharp m Subwoofer The subwoofer reproduces powerful deep bass sounds Place a subwoofer anywhere in the front as desired m Notes When using a conventional TV to avoid interference with the TV picture use only magnetically shielded front left and right and center speakers To obtain the best surround effects the speakers except the subwoofer should be full range speakers 1 TV or screen 2 Front left speaker 3 Subwoofer 4 Center speaker 5 Front right speaker 6 Surround left speaker 7 Surround right speaker 8 Surround back left speaker 9 Surround back right speaker 10 Surround back center speaker 11 Listeing position Surround speaker Front speaker Surround back speaker Point slightly downward 60 to 90 cm Front Panel Contr
10. ding of the mast and supporting structure grounding of the lead in wire to an antenna discharge unit size of VA PORTABLE CART WARNING grounding conductors location of antenna discharge unit connection to grounding electrodes and requirements for the grounding electrode See Figure 1 44 LEAD IN WIRE ENGLISH Figure 1 Example of antenna grounding as per National Electrical Code ANSI NFPA 70 GROUND CLAMP ins ANTENNA DISCHARGE UNIT a NEC SECTION 810 20 ELECTRIC SERVICE EQUIPMENT GROUNDING CONDUCTORS NEC SECTION 810 21 GROUND CLAMPS POWER SERVICE GROUNDING ELECTRODE SYSTEM NEC ART 250 PART H L NEC NATIONAL ELECTRICAL CODE 15 Lightning For added protection for this product during a lightning Storm or when it is left unattended and unused for long periods of time unplug it from the wall outlet and disconnect the antenna or cable system This will prevent damage to the product due to lightning and power line surges 16 Power Lines An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits or where it can fall into such power lines or circuits When installing an outside antenna system extreme care should be taken to keep from touching such power lines or circuits as contact with them might be fatal 17 Overloading Do not overload wall outlets extension cords or integral co
11. el driven 8 Q THD 0 02 1 kHz 7x100W 4 Q THD 0 02 1 kHz 7x150W 7 CH mode only channel driven 8 Q THD 0 02 1 kHz 130 W CH 4 Q THD 0 02 1 kHz 200 W CH ENGLISH Total harmonic distortion 8 Q 125 W 1 kHz 0 02 Intermodulation distortion 60 Hz 7 kHz 4 1 SMPTE 8 Q 125 W 0 01 Input sensitivity 47 KQ 1 0V Signal to noise ratio IHF A weighted 100 W 8 Q 0 dB 115 dB 1W 8Q 0dB 100 dB Frequency response 20 Hz 100 kHz 0 1 dB Damping factor 100 General Power supply 120 V 60 Hz Power consumption 10A Dimensions WxHxD 440x 196 x 450 mm 17 3 8 x 7 3 4 x 17 3 4 inches Weight Net 32 kg 70 6 Ibs Note Design and specifications are subject to change without notice for improvements 11 A 965 7 CH Power Amplifier Sherwood NEWCASTLE 5707 04746 001 0
12. ment parts specified by the manufacturer or have the same characteristics as the original part Unauthorized substitutions may result in fire electric shock or other hazards 22 Safety Check Upon completion of any service or repairs to this product ask the service technician to perform safety checks to determine that the product is in proper operating condition 23 Wall or Ceiling Mounting The product should be mounted to a wall or ceiling only as recommended by the manufacturer 24 Heat The product should be situated away from heat sources Such as radiators heat registers stoves or other products including amplifiers that produce heat CONTENTS Introduction READ THIS BEFORE OPERATING YOUR UNIT 12 a l 9 z i System Connections 15 VARIOUS CONNECTIONS OF SPEAKER CORDS 17 SPEAKER PLACEMENT 18 Front Panel Controls 19 e Operations 19 Troubleshooting Guide 10 e Specifications 11 System Connections Please be certain that this unit is unplugged from the AC outlet before making any connections Be sure to observe the color coding when connecting the pre amplifier and speakers to this unit Make connections firmly and correctly If not poor connections can cause loss of sound noise or damage to the unit For connections between this unit and the Sherwood compatible pre amplifier such as P 965 refer to the system connections in the operating instructions of that
13. nce in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Caution Any changes or modifications in construction of this device which are not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment FOR YOUR SAFETY Units shipped to the U S A and Canada are designed for operation on 120 V AC only Safety precaution with use of a polarized AC plug However some products may be supplied with a nonpolarized plug U S A CAUTION To prevent electric shock match wide blade of plug to wide slot fully CANADA insert ATTENTION Pour viter chocs lectriques introduire la lame la plus large de l
14. nvenience receptacles as this can result in a risk of fire or electric shock 18 Object and Liquid Entry Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock Never spill liquid of any kind on the product 19 Servicing Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage or other hazards Refer all servicing to qualified service personnel 20 Damage Requiring Service Unplug this product form the wall outlet and refer servicing to qualified service personnel under the following conditions a When the power supply cord or plug is damaged b If liquid has been spilled or objects have fallen into the product C If the product has been exposed to rain or water d If the product does not operate normally by following the operating instructions Adjust only those controls that are covered by the operating instructions as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to its normal operation e If the product has been dropped or damaged in any way and f When the product exhibits a distinct change in performance this indicates a need for service 21 Replacement Parts When replacement parts are required be sure the service technician has used replace
15. ols MRAN ENGLISH STANDBY BUTTON INDICATOR POWER SWITCH Operations To enter the standby mode In the standby mode turn the power on POWER O STANDBY ON OFF The STANDBY button lights up in amber This means that the unit is connected to an AC outlet and a small amount of current is retained to support The STANDBY button lights up in blue the unit operation readiness turns on and enters the operating mode Sound can To switch the power off push the POWER switch be heard from the speakers in a few seconds again Then the power is cut off and the STANDBY button goes off In the operating mode to enter the i Note on system power control standby mode If the DC TRIGGER connection is made between this STANDBY unit and Sherwood pre amplifier P 965 this unit will be switched between the standby mode and the operating mode automatically each time P 965 is switched between these modes For details refer to the operating instructions of P 965 The STANDBY button lights up in amber a lt z i Troubleshooting Guide If a fault occurs run through the table below before taking your unit for repair If the fault persists attempt to solve it by switching the unit off and on again If this fails to resolve the situation consult your dealer Under no circumstances should you repair the unit yourself as this could
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