Manuale d’uso / di manutenzione del prodotto AV2500 Series II del fabbricante B&K
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B & K Components Ltd. P/N 12695.
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Page 1 Safety Precautions Page 2 Purpose and function Page 3 Design and constr uction Page 3 Features Page 4 Rear panel v iew Page 4 Rear panel descr iption Page 5 Control muti ng Pag e 5 - 6 Level co.
Page 2 WA RNING: TO PREVENT FIRE OR SHOCK HA ZA RD, DO NOT EXPOSE THIS UNIT TO RA IN OR MOISTURE. The lightning fl ash with arr owhead, within an equil ateral tr iangle, is i ntended to alert the user.
Page 3 The AV2500 series II is a compact, very efficient, five channel pow er ampli fier. It is designed to be used in al l types of audio or audi o/video sy stems. The term versatile is almost adequate to descri be the vari ance of operational modes the AV2500 series II is capable of providi ng.
Page 4 - Efficient high curr ent transformer for improved dy namics. - More accur ate and three dimensional r eproduction of source material. - Prov ides short term pr otection from accidental shorti ng of output devic es and protection from thermal over load.
Page 5 1. A C fuse holder - Holds the AC Line fuse. This fuse is an 8 Amp / 250 Volt Slow Bl ow fuse. Replace w ith same ty pe and val ue fuse only. 2. A C Input receptacle - For attaching the suppl ied AC pow er cord to the amp lifier. 3. Speaker outputs - For connecting the speaker s to the amplifier.
Page 6 If the control function is desired, each uni t in the system must r emain connected at all times and the control must be enabled. To enabl e the control function, the CTRL ENABLE button must be out for each controllabl e amplifier in the sy stem.
Page 7 Example: W hen using 4 ohm and 8 ohm speakers together, the 4 ohm may sound louder then 8 ohm at a g iven v olume level. The l evel contr ols on the ampli fier are used to match the speakers volume level. Clockwise w ill increase the output. Counter clockwise will decrease the outp u t.
Page 8 Five w ay binding posts ar e provi ded. One pair for each channel. They are desig ned to accept a banana-type pl ug or spade l ug connector (s hown below ) and are color coded for easy identificati on. The red (+) post should alw ays be connected to the speaker s (+) jack.
Page 9 In order to g ain access to the internal bus str ucture, you must firs t remove the top cover . Turn the amplifier so the rear panel is facing y our. The jumper modules may be seen on the circuit boar d just behind the lev el controls . Below i s the default setup for the AV2500 series II amplifier.
Page 10 W ith the jumper plug set to this locati on on a channels jumper module w ill only l et the signal pr esent at that channel’s input to appear at it output. Along w ith being channel 2's input, it i s used as the input to the rig ht bus and the right sour ce for the ‘L+R BUS’ .
Page 11 The AV2500 series II ’ s five output channels may be parall eled (mono) to combine the output current for all channel s. This feature allow s the amplifier to i ncrease its apparent output current. To use, pl ace the source gr oup jumper for all channels on the ‘L BUS’ jumper terminal.
Page 12 The AV2500 series II may operate w ith 2 channels br idged to dri ve a hig h impedance speaker. To use, place the source g roup jumper for both channels on the ‘ L BUS’ jumper terminal . Place the vol ume group jumper for both channels on the ‘NO VOL’ jumper termi nal.
Page 13 There will most like ly be a n umbe r of cable s in volved in the installatio n of your ho m e entertainment sy stem. Pre-planni ng is essenti al in order to max imiz e system efficiency .
Page 14 Connect the wi res from your speakers to the appropri ate output on the amplifier. It is absolutely essential that y ou observ e correct polar ity i n these connections. Double check all connecti ons. Plug the ampli fier’s pow er cord into the AC pow er source.
Page 15 PROBLEM POSSIBLE CA USE POSSIBLE SOL UTION No sound 1. Power cord not plugged in. 1. Reconnect power cord. (‘on’ LED not illuminated) 2. Power off at AC source. 2. Check AC switch or fuse. 3. AC power inlet fuse blown 3. Check for shorts or or faulty.
Page 16 Power rating: 8 ohms 60 watts @ 1 kHz 4 ohms Not recommended Frequency response 5 Hz - 45 kHz Input sensitiv ity 0.77 Volts THD (S+ N) 0.09 % @ 1 kHz Input impedance 33.2 k ohms Damp in g fa ctor 80 Current ( peak to peak) 16 Amps Slew r ate 14 V / ) sec Dynami c headroom 1.
Page 17 B&K Components Ltd., referred to herein as B&K, warrant s your B&K equipment against all defects in material and workmanship for a period of five years from the date of purchase. This warranty applies only to t he original purchaser and only to equipm ent in normal residential use and service.
B&K Com ponents, Lt d. 2100 O l d Union Road Buf f al o, New York 14227 716-656- 0023 www. bkc omp. co m.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il B&K AV2500 Series II è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del B&K AV2500 Series II - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso B&K AV2500 Series II imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul B&K AV2500 Series II ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il B&K AV2500 Series II, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del B&K AV2500 Series II.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il B&K AV2500 Series II. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo B&K AV2500 Series II insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
