Safety precautionsWARNINGTo prevent injury or fire, take the followingprecautions:• Mounting and wiring this product requires skills andexperience. For safety’s sake, leave the mounting andwiring work to professionals.• When extending the ignition, battery, or ground wires,make sure to use automotive-grade wires or other wireswith the range of 5 mm2 (AWG 10) or more to preventwire deterioration and damage to the wire coating.• To prevent a short circuit, never put or leave any metallicobjects (such as coins or metal tools) inside the unit.• If the unit starts to emit smoke or strange smells, turnoff the power immediately and consult your Kenwooddealer.• Do not touch the unit during use because the surface ofthe unit becomes hot and may cause burns if touched.CAUTIONTo prevent damage to the machine, take the followingprecautions:• Be sure the unit is connected to a 12V DC power supplywith a negative ground connection.• Do not open the top or bottom covers of the unit.• Do not install the unit in a spot exposed to directsunlight or excessive heat or humidity. Also avoid placeswith too much dust or the possibility of water splashing.• When replacing a fuse, only use a new one with theprescribed rating. Using a fuse with the wrong ratingmay cause your unit to malfunction.• To prevent a short circuit when replacing a fuse, firstdisconnect the wiring harness.NOTE• If you experience problems during installation, consultyour Kenwood dealer.• If the unit does not seem to be working right, consultyour Kenwood dealer.Cleaning the unitIf the front panel gets dirty, turn off the power and wipethe panel with a dry silicon cloth or soft cloth.CAUTIONDo not wipe the panel with a hard cloth or a clothdampened by volatile solvents such as paint thinner andalcohol. They can scratch the surface of the panel and/orcause the indicator letters to peel off.To prevent battery riseWhen the unit is used in the ACC ON position withoutturning the engine ON, it depletes the battery. Use it afterstarting the engine.Protection functionThe protection function is activated in the followingsituations:This unit is equipped with a protection function forprotecting this unit and your speakers from variousaccidents or problems that can occur.When the protection function is triggered, the powerindicator goes off and the amplifier stops operating.• When a speaker wire may be short-circuited.• When a speaker output contacts ground.• When the unit malfunctions and a DC signal is sent tothe speaker output.• When the internal temperature is high and unit won’toperate.7 Wiring• Take the battery wire for this unit directly from thebattery. If it's connected to the vehicle’s wiring harness, itcan cause blown fuses etc.• If a buzzing noise is heard from the speakers when theengine is running, connect a line noise filter (optional) toeach of the battery wire.• Do not allow the wire to directly contact the edge of theiron plate by using Grommets.• Connect the ground wire to a metal part of the carchassis that acts as an electrical ground passingelectricity to the battery‘s negative · terminal. Do notturn the power on if the ground wire is not connected.• Be sure to install a protective fuse in the power cordnear the battery. The protective fuse should be the samecapacity as the unit’s fuse capacity or somewhat larger.• For the power cord and ground, use a vehicle type(fireproof ) power wring cord. (Use a power wiring cordwith the range of 5 mm2 (AWG 10) or more.)• When more than one power amplifier are going to beused, use a power supply wiring wire and protectivefuse of greater current-handling capacity than the totalmaximum current drawn by each amplifier.7 Speaker selection• Using speakers with smaller input ratings than theamplifier’s output power would result in smokegeneration or equipment failure.• The impedance of the speakers that are going tobe connected should be 2Ω or greater (for stereoconnections), or 4Ω or greater (for bridged connections).When more than one set of speakers are going tobe used, calculate the combined impedance of thespeakers and then connect suitable speakers to theamplifier.Combined impedanceB64-5161-08/00 (MH)© 2013 JVC KENWOOD CorporationKAC-PS847FKAC-PS847KAC-PS6474/3 CHANNEL POWER AMPLIFIERINSTRUCTION MANUAL••••••••••••••••7••••·•••7••Troubleshooting guideWhat might appear to be a malfunction in your unit may just be the result of slight misoperation or miswiring.Before calling service, first check the following table for possible problems.PROBLEM POSSIBLE CAUSE SOLUTIONNo sound.(No sound from oneside.)(Blown fuse.)• Input (or output) cables are disconnected.• Protection circuit may be activated.• Volume is too high.• The speaker cord is shorted.• Connect the input (or output) cables.• Check connections by referring to.• Replace the fuse and use lower volume.• After check the speaker cord and fixing thecause of the short, replace the fuse.The output level is toosmall (or too large).• The input sensitivity adjusting control isnot set to the correct position.• Adjust the control correctly referring to.The sound quality isbad.(The sound is distorted.)• The speakers wire are connected withwrong ª/· polarity.• A speaker wire is pinched by a screw inthe car body.• The switches may be set improperly.• Connect them properly checking the ª/·of the terminals and wires well.• Connect the speaker wire again so that it isnot pinched by anything.• Set switches properly by referring to.ª · ª ·– ≤≤≤– ≤≤≤--– --–-SpecificationsSpecifications subject to change without notice.Audio sectionRated power output (+B = 14.4V)KAC-PS847F/PS847Stereo (4 Ω).................60 W × 4 (20 Hz – 20 kHz, ≤ 1.0 % THD)Stereo (2 Ω)......................................90 W × 4 (1 kHz, ≤ 1.0 % THD)Bridged (4 Ω) ............................... 180 W × 2 (1 kHz, ≤ 1.0 % THD)KAC-PS647Stereo (4 Ω).................40 W × 4 (20 Hz – 20 kHz, ≤ 1.0 % THD)Stereo (2 Ω)......................................60 W × 4 (1 kHz, ≤ 1.0 % THD)Bridged (4 Ω) ............................... 130 W × 2 (1 kHz, ≤ 1.0 % THD)Speaker impedance ............................... 4 Ω (2 Ω to 8 Ω allowable)(Bridged connection: 4 Ω to 8 Ω allowable)Frequency response (+0, –3 dB)............................... 5 Hz – 50 kHzInput sensitivity (RCA)........................................................... 0.2 V – 5.0 VSignal to noise ratio........................................................................... 100 dBInput impedance ...................................................................................10 kΩLow pass filter frequency (-24 dB/oct.) (B channel).....................................................................50 Hz – 200 Hz (variable)High pass filter frequency (-12 dB/oct.) (A channel) ..........80 HzGeneralOperating voltage ................................ 14.4 V (11 – 16 V allowable)Current consumptionKAC-PS847F/PS847........................................................................29 AKAC-PS647 ..........................................................................................18 ADimensions (W × H × D) ...................................315 × 56 × 200 mmWeight ..........................................................................................................2.1 kgThe warranty will only be honored in the country in which the unit was originally purchased.EXPRESS WARRANTY STATEMENT FOR CAR STEREO ANDPERSONAL AUDIO COMPONENTSJVC KENWOOD AUSTRALIA PTY. LTD. (“JVC KENWOOD”) is proud of the quality and workmanship of its audio equipment.This unit has been properly designed, tested and inspected before it was shipped to you. If properly installed and operated inaccordance with instructions furnished, it should give optimum reliable performance.For Australian CustomersOur goods comes with guarantees that cannot be excluded under the Australian Consumer Law. Under Australian ConsumerLaw, you are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeableloss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and thefailure does not amount to a major failure.The benefits of this warranty are in addition to any rights and remedies imposed by Australian State and Federal legislationthat cannot be excluded. Nothing in this warranty is to be interpreted as excluding, restricting or modifying any State or Federallegislation applicable to the supply of goods and services which cannot be excluded, restricted or modified.For New Zealand CustomersThe benefits of the express warranty described below are in addition to your statutory rights and remedies under the ConsumerGuarantees Act 1993 that cannot be excluded. If you are acquiring Product for the purposes of a business, to the extentpermitted by law, the Consumer Guarantees Act 1993 does not apply. Otherwise nothing in this warranty is to be interpreted asexcluding, or restricting, the Consumer Guarantees Act 1993. To the extent permitted by law, all other warranties, guaranteesor representations (whether implied by statute, common law or custom of the trade or otherwise) in respect of the Product, notexpressly included in this warranty, are excluded.SCOPE OF EXPRESS WARRANTYSubject to the “EXCLUSIONS”, “PROCEDURE WHEN REQUESTING SERVICE UNDER THE EXPRESS WARRANTY” and“LIMITATIONS” below, each of the KENWOOD brand products (“Products”) is expressly warranted under normal installationand use against defects in material and workmanship during the Warranty Period.This warranty is not transferable to a subsequent customer if the Product is sold by the original purchaser during the Warranty Period.During the Warranty Period, JVC KENWOOD will cause the Product or the defective part of the Product to be repaired by providingto any JVC KENWOOD Authorized Service Centre in Australia or New Zealand(as applicable to country of purchase) free of chargeparts necessary to correct any defect in material or workmanship. JVC KENWOOD reserves the right to replace defective partsof the Product with parts and components of similar quality, grade and composition where an identical part or component is notavailable. Products presented for repair may be replaced by refurbished products of the same type rather than being repaired.Refurbished parts may be used to repair the goods.WARRANTY PERIODThe KENWOOD brand car stereo is expressly warranted for a period of ONE YEAR from the date of the original purchase.CONDITIONS OF THE EXPRESS WARRANTYThe following are not covered by this express warranty:1. Voltage conversions;2. Cabinets, grilles, other exterior finishes, belts, tape heads, and other nondurable parts and accessories;3. Any fault caused by faulty installation, water damage, the vehicle (including its electronically system) or connection to an incorrectpower supply;4. Periodic check-ups which do not disclose any defects covered by this warranty;5. Products on which the serial number has been defected, modified or removed;6. Products that have been subject to abnormal conditions, including environment, temperature, water, fire, humidity, pressure, stressor similar;7. Alleged defects that are within acceptable industry variances;8. Damage or deterioration:a. Resulting from installation and/or removal of the product.b. Resulting from accident, misuse, abuse, neglect, unauthorized product modification or failure to follow instructions containedin the Owner’s Manual.c. Resulting from installation of parts or accessories that do not conform to the quality or specifications of the original parts oraccessories.d. Occurring during shipment (claims must be present to shipper); and9. Damaged magnetic tapes.The warranty does not extend to:1. Installation and removal charges; or2. Shipping charges to or from an authorised JVC KENWOOD Service Centre.PROCEDURE WHEN REQUESTING SERVICE UNDER THE WARRANTY1. When requesting service under JVC KENWOOD warranty, preferably make your Product available for inspection and testing to thedealer from whom you made the purchase, or to the nearest Authorised JVC KENWOOD Service Centre for KENWOOD products,or ship your Product in its original packaging, or equivalent, with shipping charges and insurance prepaid, to the Authorised JVCKENWOOD Service Centre for KENWOOD products. Otherwise, contact JVC KENWOOD at the contact address listed below.. Attach the following to the Product:. the warranty record in the back of this page together;. a valid purchase docket attached; and. detailed description of the problem encountered, including details of any problems which relate to associated equipment.2. If such inspection and testing fi nd no defect in the Product, the purchaser, at JVC KENWOOD’s discretion must pay JVC KENWOOD’s costof service work, evaluation and testing.3. Make sure you recover this card, your purchase docket and repair docket when accepting the equipment back after repair or afteryour claim is rejected.IMPORTANT NOTICE1. Proper maintenance and use are important to the performance level of all KENWOOD brand products. Therefore, you should readyour instruction manual.2. Retain your purchase docket together with this warranty record in a safe place, and present them both to prove your eligibility forwarranty service.3. We recommend that you keep all the original packaging as it provide the best protection you can have for transportation of yourequipment in the future.4. Location of nearest JVC KENWOOD Service Centre can be obtained from the dealer.LIMITATIONSTo the extent permitted by law, JVC KENWOOD makes no express warranties or representations other than set out in this warranty.The repair or replacement of the unit or part of the unit is the absolute limits of JVC KENWOOD’s liability under this express warranty.JVC KENWOOD AUSTRALIA PTY. LTD.4 TALAVERA ROAD, NORTH RYDEN.S.W. 2113, AUSTRALIATEL. (02) 8879-2211FAX. (02) 8879-2255svcdept@kenwood.com.auAUSTRALIA/NEW ZEALAND JVC KENWOOD AUSTRALIA PTY. LTD.Warranty Card© B46-0827-00/02 (M) (12/09)Model number & serial numberDealer & stampPurchase dateName & address of customerAttention:This card and receipt (or invoice) are necessary to purchase a new panel in case oftheft or damage.Dear Customer,Thank you for purchasing this kenwood product. As mentioned in the pages of this booklet,our warranty is only valid in the countries listed. If your country is not listed please contactyour retailer for information on warranty procedure, or write to:JVC KENWOOD Customer Information Center3-12, Moriyacho, Kanagawa-ku, Yokohama-shi, Kanagawa 221-0022, Japan |
