User manual B&K AV1260

[. . . ] SIMPLY BETTER! B&K Components, Ltd. AV1260 Owner's Manual B&K P/N12931 0403 B&K Components, Ltd. , 2100 Old Union Road, Buffalo New York 14227-2725 Phone 1-800-543-5252 or (716) 656-0026, Fax (716) 656-1291 E-mail: info@bkcomp. com Web: www. bkcomp. com ii TABLE OF CONTENTS Table of Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Purpose and Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Rear Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 DIP Switch Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Channel Control & Muting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Master Control & Muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Level Control Defeat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Jumper Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 High Current (Mono) Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 System Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Making the Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Returning Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 WWW. BKCOMP. COM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 iii SAFETY PRECAUTIONS PLEASE READ BEFORE INSTALLING WARNING: to prevent fire or shock hazard, do not expose this unit to rain or moisture. [. . . ] It may be used to equally attenuate the level for both amplifiers pairs. The level controls may be reconfigured so that they are bypassed (recommended for high current output paralleling applications) by moving the jumpers inside the unit. See AV1260's internal volume selection. Default from the factory, the level controls are set to full clockwise (no attenuation). Note, there is a single level control for each pair of amplifiers (1-2, 3-4, 5-6, 7-8, 9-10, and 11-12) therefore, care should be taken in the assignment of the audio signal source when used in applications when there is no relationship between the two amplifier pairs (i. e. . separate source material, one from a DVD player the other from a VCR. ) Another example might be when using 4 ohm and 8 ohm speakers together, the 4 ohm (CH 1) speaker may sound louder then the 8 ohm (CH 2) speaker when set to the same level. 5 INPUT CONNECTIONS Each pair of amplifier channels have their own `Local' input and output RCA connectors. The inputs are designed to accept line level audio from a preamplifiers unbalanced output connectors. Output expansion is accommodated with the supplied output connectors. These outputs are effectively a direct pass through from the inputs. RCA connector Typical input setup: TO 2ND AMPLIFIERS LEFT INPUT FROM PREAMPLIFIER A's LEFT OUTPUT L L L LEVEL 1/2 CTRL 1/2 OUT OUT 1 IN BUS L+R SENSE AMP ON MASTER CONTROL OUT BUS IN OUT FROM PREAMPLIFIER B's LEFT OUTPUT L ON 1234 MIN IN OUT 2 IN MAX R IN IN OUT FROM PREAMPLIFIER B's RIGHT OUTPUT R R R TO 2ND AMPLIFIERS RIGHT INPUT FROM PREAMPLIFIER A's RIGHT OUTPUT Figure 3 Figure 3 shows `Local' OUT 1 and 2 connections and how they may be used to connect to another amplifier. OUT 1 source is the same signal as IN 1. OUT 2 source is the same signal as IN 2. BUS inputs are buffered and sent to the BUS outputs. OUTPUT CONNECTIONS The AV1260 connects to speakers via six plug-in Phoenix connectors. Simply unplug the connector from the rear of the AV1260, strip the speaker wire approximately ¼" and insert the bare end into the gate on the connector. Use a small flat blade screwdriver to tighten the connection to each conductor. Make sure you hold the connector upside down to connect Left and Right as shown: + -+ OUT 2 OUT 1 Typical amplifier hookup: + -+ OUT 12 OUT 11 + -+ OUT 10 OUT 9 + -+ OUT 8 OUT 7 + -+ OUT 6 OUT 5 + -+ OUT 4 OUT 3 + -+ OUT 2 OUT 1 + - - + + - - + + - - + + - - + + - - + + - - + Figure 5 6 LEVEL CONTROL DEFEAT The following procedures should only be performed by a qualified technician. Each pair of amplifier channels have their own `Local' level control that may be bypassed to allow paralleling output channels. The jumper modules are located inside the unit, on the circuit board, just behind the level controls. Figure 6 shows how jumpers are used to configure the AV1260 amplifier (level controls enabled). Rearranging these jumpers allows configuring the amplifier for use without a level control (required for proper operation using paralleled output channels). JP1 +5 C24 C25 -5 GND GND +5 R9 C20 U7 C19 + R20 C22 C32 U8 GND + + JP2 JP3 R8 C14 + R21 C16 C30 U6 C15 R45 R7 C8 U3 C7 + R22 C10 C28 U4 C9 B&K Components Ltd. P/N 12926 Rev A +5 -5 CON12 C27 + C26 + R68 R19 + C34 R40 GNDR C3 U1 R42 C5 U2 C1 U5 C33 C18 D13 R109 U11 CON5 R115 C23 D11 C31 R100 C12 U10 CON4 R106 C17 D7 C29 R105 R28 R114 R32 R112 R31 R111 R34 D9 D5 R5 R4 R103 R27 R102 R30 BACKPANEL CHANNELS 5 AND 6 VOL AND NO VOL JUMPERS CHANNELS 3 AND 4 VOL AND NO VOL JUMPERS CHANNELS 1 AND 2 VOL AND NO VOL JUMPERS Figure 6 When reconfiguring the AV1260 to NOT USE the level control, simply move the desired jumper from the `VOL' (default) and place it across the `NO VOL' pins. Note, the level control should be disabled for each paralleled amplifier channel. JUMPER SETTINGS Figure 6 illustrates the jumper modules used in configuring each channel. Each amplifier channel has a jumper terminal location that is conveniently labeled for easy verification of its current configuration. NO VOL NO VOL VOL JUMPER CHANNELS 1 AND 2 Figure 7 7 VOL + + R110 C21 C13 C39 C38 R101 C37 C36 R52 C6 U9 CON3 R97 C11 R58 D3 C35 R96 R24 R65 + R3 R23 R59 R26 D1 D2 R2 R1 C2 R36 C4 R38 R44 R43 CON2 HIGH CURRENT (MONO) USAGE NO VOL NO VOL NO VOL NO VOL NO VOL NO VOL The AV1260 has up to twelve output channels that may be paralleled (mono). [. . . ] This warranty does not apply to the cabinet or appearance items such as the faceplate or control buttons, nor does it cover any expenses incurred in shipping the unit to and from the manufacturer's service depot. This warranty on B & K Components, Ltd. products is NOT VALID if the products have been purchased from an unauthorized dealer or an E-tailer or if the original factory serial number has been removed, defaced or replaced in any way. sells its products through authorized dealers in order to insure that consumers obtain proper dealer service and support. [. . . ]