Gebruiksaanwijzing /service van het product ST1200 Series van de fabrikant B&K
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B & K Components Ltd. P/N 12687.
B&K Components, Ltd., 2100 Old Union R oad, Buffalo, New York 14227.
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 arrowhead, wi thin an equilater al tri angle, is intended to al ert the user.
Page 3 The ST1200 series II is a compact, very efficient, two channel pow er amplifier . 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 ST1200 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 protecti on from accidental shorting 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 type and value 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 remai n 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 are pr ovided. One pai r for each channel. They ar e designed to accept a banana-type pl ug or spade lug connector (show n below) and are color coded for easy identificati on. The red (+) post should alw ays be connected to the speakers ( +) jack.
Page 9 In order to g ain access to the internal bus structur e, you must first r emove the top cover . Turn the amplifier so the rear panel i s facing y our. The jumper modul es may be seen on the circuit boar d just behind the lev el controls. Below i s the default setup for the ST1200 series II amplifier.
Page 10 Along w ith being the right channel input, it is used as the i nput to the right bus and the right sour ce for the ‘L+R BUS’ . Because it is a BUS i nput, any signal input here w ill appear at the ‘R BUS’ jumper terminal f o r both of the ST1200 series II ’ s jumper modul es.
Page 11 The ST1200 series II ’s tw o output channels may be parallel ed (mono) to combine the left and right channels output cur rent. This feature all ows the ampli fier to double its apparent output current. To use, pl ace the source group j umper for both channels on the ‘L BUS’ jumper terminal.
Page 12 The ST1200 series II may be bridg ed to driv e a high i mpedance speaker. To use, place the source gr oup jumper for both channels on the ‘L BU S’ jumper terminal . Place the volume g roup jumper for both channels on the ‘ NO VOL’ jumper ter minal.
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-planning is essential in order to max imiz e system efficiency.
Page 14 Connect the wi res from your speakers to the appropriate output on the ampl ifier. It is absolutely essential that you observ e correct polari ty in these connecti ons. Double check all connecti ons. Plug the ampli fier’s power cord into the AC pow er source.
Page 15 PROBLEM POSSIBLE CA USE POSSIBLE SOLUTION 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 Damping factor 100 Current ( peak to peak) 20 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 equipment in norm al residential use and service.
B&K Com ponents, Ltd. 2100 O l d Union Road Buf fa l o, New York 14227 716-656- 0023 www. bk co mp. co m.
Een belangrijk punt na aankoop van elk apparaat B&K ST1200 Series (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen B&K ST1200 Series heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens B&K ST1200 Series vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding B&K ST1200 Series leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over B&K ST1200 Series krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van B&K ST1200 Series bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de B&K ST1200 Series kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met B&K ST1200 Series . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
