Gebruiksaanwijzing /service van het product ST260 van de fabrikant B&K
Ga naar pagina of 20
ST260 Two Channel Amplifier OWNER’S MANUAL B & K Components Ltd. 12997 REV 050500.
B&K Components, Ltd., 2100 Old Union Road, Buffalo, New York 14227.
Page 1 Table of contents Safety Precautions Page 2 Purpose and function Page 3 Design and construction Page 3 Features Page 4 Rear panel view Page 4 Rear panel description Page 5 Control muting Page 5.
Page 2 SAFETY PRECAUTIONS PLEASE READ BEFORE INSTALLING WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. The li g htnin g flash with arrowhead, within an equilate.
Page 3 The ST260's purpose and function The ST260 is a compact, very efficient, two channel power amplifier. It is designed to be used in all types of audio or audio/video systems. The term versatile is almost adequate to describe the variance of operational modes the ST260 is capable of providing.
Page 4 )LJXUH$ Features Toroidal Transformer - Efficient hi g h current transformer for improved d y namics. Discrete Circuitry - More accurate and three dimensional reproduction of source material. Limited Protection - Provides short term protection from accidental shortin g of output devices and protection from thermal overload.
Page 5 Rear panel description 1. AC fuse holder - Holds the AC Line fuse. This fuse is an 8 Amp / 250 Volt Slow Blow fuse. Replace with same type and value fuse only. 2. AC Input receptacle - For attaching the supplied AC power cord to the amplifier. 3.
Page 6 )LJXUH% If the control function is desired, each unit in the system must remain connected at all times and the control must be enabled. To enable the control function, the CTRL ENABLE button must be out for each controllable amplifier in the system.
Page 7 )LJXUH& )LJXUH' Example: When using 4 ohm and 8 ohm speakers together, the 4 ohm may sound louder then 8 ohm at a given volume level. The level controls on the amplifier are used to match the speakers volume level. Clockwise will increase the output.
Page 8 )LJXUH( Outputs Five wa y bindin g posts are provided. One pair for each channel. The y are desi g ned to accept a banana-t y pe plu g or spade lu g connector (shown below) and are color coded for eas y identification. The red (+) post should alwa y s be connected to the speakers (+) jack.
Page 9 )LJXUH) )LJXUH* ST260’s internal bus structure In order to g ain access to the internal bus structure, y ou must first remove the top cover. Turn the amplifier so the rear panel is facin g y our. The jumper modules ma y be seen on the circuit board just behind the level controls.
Page 10 R BUS - Along with being the right channel input, it is used as the input to the right bus and the right source for the ‘L+R BUS’. Because it is a BUS input, any signal input here will appear at the ‘R BUS’ jumper terminal for both of the ST260’s jumper modules.
Page 11 )LJXUH+ )LJXUH, )LJXUH- Mono application (Medium current) The ST260’s two output channels ma y be paralleled (mono) to combine the left and ri g ht channels output current. This feature allows the amplifier to double its apparent output current.
Page 12 )LJXUH. )LJXUH/ )LJXUH0 Brid g ed application (Hi g h volta g e) The ST260 ma y be brid g ed to drive a hi g h impedance speaker. To use, place the source g roup jumper for both channels on the ‘L BUS’ jumper terminal. Place the volume g roup jumper for both channels on the ‘NO VOL’ jumper terminal.
Page 13 System installation There will most likely be a number of cables involved in the installation of your home entertainment system. Pre-planning is essential in order to maximize system efficiency.
Page 14 Connect the wires from your speakers to the appropriate output on the amplifier. It is absolutely essential that you observe correct polarity in these connections.
Page 15 Troubleshooting PROBLEM POSSIBLE CAUSE POSSIBLE SOLUTION No sound (‘on’ LED not illuminated) 1. Power cord not plu gg ed in. 2. Power off at AC source. 3. AC power inlet fuse blown or faulty. 4. Control switch in the wron g position. 1. Reconnect power cord.
Page 16 ST260 SPECIFICATIONS Power rating: 8 ohms 60 watts @ 1 kHz 4 ohms Not recommended Frequency response 5 Hz - 45 kHz Input sensitivity 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 rate 14 V / ) sec Dynamic headroom 1.
Page 17 Limited Warrant y B&K Components Ltd., referred to herein as B&K, warrants your B&K equipment a g ainst all defects in material and workmanship for a period of five years from the date of purchase. This warranty applies only to the ori g inal purchaser and only to equipment in normal residential use and service.
B&K Components, Ltd. 2100 Old Union Road Buffalo, New York 14227 716-656-0023 www.bkcomp.com.
Een belangrijk punt na aankoop van elk apparaat B&K ST260 (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 ST260 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 ST260 vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding B&K ST260 leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over B&K ST260 krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van B&K ST260 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 ST260 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met B&K ST260 . 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.
