English dropdown-ico

B&K 7260 series manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of B&K 7260 series, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of B&K 7260 series one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of B&K 7260 series. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of B&K 7260 series should contain:
- informations concerning technical data of B&K 7260 series
- name of the manufacturer and a year of construction of the B&K 7260 series item
- rules of operation, control and maintenance of the B&K 7260 series item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of B&K 7260 series alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of B&K 7260 series, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the B&K service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of B&K 7260 series.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the B&K 7260 series item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    B & K Components Ltd. P/N 13007 Rev. 0004 Reference 7250/7260 series II Five/Six Channel Amplifier OWNER’S MANUAL[...]

  • Page 2

    B&K Components, Ltd 2100 Old Union Road Buffalo, New York 14227 P/N 13007 Rev. 0004[...]

  • Page 3

    Table of contents Safety Precautions page 2 Purpose and function page 3 Design and construction page 3 Features page 3 Rear panel view page 4 Rear panel description page 4 - 6 Level controls page 5 Inputs page 5 - 6 Outputs page 6 Control Muting page 8 - 9 System installation page 7 Making the connection page 7 - 8 Troubleshooting page 10 Care and [...]

  • Page 4

    SAFETY PRECAUTIONS PLEASE READ BEFORE INSTALLING WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user of the presence of uninsulated “ dangerous voltage ” within the product’s enclosure that may be sufficient mag[...]

  • Page 5

    The Reference 7250/7260 series II purpose and function The Reference 7250/7260 series II is a high current, five/six channel power amplifier. It is designed to be used in all types of audio or audio/video systems. Design and construction The Reference 7250/7260 series II utilizes high quality electronic circuitry to achieve an environment wherein a[...]

  • Page 6

    Rear Panel View 1. AC fuse holder 4. Amplifier control muting input/output 2. AC Input receptacle 5. Level controls 3. Speaker outputs 6. Inputs 7. Speaker fuses Rear panel description 1. AC fuse holder - Holds the AC Line fuse. This fuse is a 15 Amp / 250 Volt Slow Blow fuse. Replace with same type and value fuse only. 2. AC Input receptacle - For[...]

  • Page 7

    7. Speaker Fuses - Protection against amplifier damage in the case of shorted speaker wires. Replace fuse with same value 6 AMP SLO W BLOW only! IMPORTANT! Level controls When using the level controls, first start with them turned all the way up (clockwise). Then adjust them according to your system requirements to match the sound level coming from[...]

  • Page 8

    Here is a typical preamplifier to amplifier setup: Outputs Five way binding posts are provided. One pair for each channel. They are designed to accept a banana-type plug or spade lug connector (shown below) and are color coded for easy identification. The positive (+) post should always be connected to the speakers (+) jack. The negative (-) post s[...]

  • Page 9

    System Installation There will most likely be a number of cables involved in the installation of your home entertainment system. Preplanning is essential in order to maximize system efficiency. We recommend the following as a means of helping you reach that goal: § Make a diagram of your proposed system by laying out the relative location of each [...]

  • Page 10

    § Connect the wires from your speakers to the appropriate outputs on the amplifier. It is absolutely essential that you observe correct polarity in these connections. Example: If you connect your left front output of your preamplifier to channel 4 input on the amplifier, remember to connect your left front speaker wires to channel 4's outputs[...]

  • Page 11

    If a source other than a B&K series preamplifier is used to control multiple amplifiers, only the control output voltage from the source is critical. It must be within the range, as indicated on the rear panel, 5-24 volts DC is required. The amplifier will provide each successive amplifier with a control voltage of 12 volts DC for reliable oper[...]

  • Page 12

    Troubleshooting 1. Replace blown rail fuse inside amplifier 1. Blown rail fuse Channel sounds distorted and low in output 1. Check all connectors and repair as necessary. 1. Poor ground connection in inter- connect cables. Loud hum or buzz on one or more channels 1. Check connections making sure that cables are connected (+) to (+) and (-) to (-) 1[...]

  • Page 13

    Reference 7250/7260 series II SPECIFICATIONS Power rating: 8 ohms 200 watts @ 1 kHz 4 ohms 375 watts @ 1 kHz Frequency response 5 Hz - 45 kHz Input sensitivity 1.4 Volts THD (S+N) 0.09 % @ 1 kHz Input impedance 33.2 k ohms Damping factor 450 Current (peak to peak) 75 Amps Slew rate 14 V / u sec Dynamic headroom 1.2 dB S/N (A-weighted) 95 dB Voltage[...]

  • Page 14

    Limited Warranty B&K Components Ltd., referred to herein as B&K, warrants 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 the original purchaser and only to equipment in normal residential use and service. Defective equipment must be r[...]

  • Page 15

    B&K Components, Ltd 2100 Old Union Road Buffalo, New York 14227 P/N 13007 Rev. 0004[...]

  • Page 16

    B&K Components, Ltd. 2100 Old Union Road Buffalo, New York 14227 www.bkcomp.com P/N 13007 Rev. 0004[...]