B&K ST140M - Manuals - manualsarea.com

Page 3 - Table of contents

Page 1 12999 rev 0005 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 - 5 Control muting Page 5 - 6 Level controls Page 6 Outputs Page 7 Inputs Page 8 System installation Page ...

Page 4 - SAFETY PRECAUTIONS; PLEASE READ BEFORE INSTALLING

Page 2 12999 rev 0005 SAFETY PRECAUTIONS PLEASE READ BEFORE INSTALLING WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNITTO RAIN OR MOISTURE. The lightning flash with arrowhead, within an equilateral triangle, is intended to alert theuser of the presence of uninsulated “dangerous volt...

Page 6 - Rear Panel View; Rear panel description

Page 4 12999 rev 0005 Rear Panel View 1. AC fuse holder 5. RCA input (unbalanced) 2. AC Input receptacle 6. Level controls** 3. Speaker outputs 7. Amplifier control muting input/output 4. Balanced Input ** OPTIONS AVAILABLE FOR THE ST140M AMPLIFIER Rear panel description 1. AC fuse holder - Holds th...

Page 7 - Control muting; DO NOT POWER MOTORS WITH THIS CIRCUIT.

Page 5 12999 rev 0005 6. Level controls - Option available for the ST140M amplifier. For adjusting theinput level to the amplifier. Explained further on page 6. 7. Amplifier control muting input/output - To provide remote switching of mute on/off of the amplifier. Explained further below. Control mu...

Page 8 - Level controls

Page 6 12999 rev 0005 )LJXUH& If the control function is desired, each unit in the system must remain connected at alltimes and the control must be enabled. To enable the control function, the CTRLENABLE button must be out for each controllable amplifier in the system. For moreinformation on the...

Page 9 - Outputs

Page 7 12999 rev 0005 )LJXUH' Outputs Five way binding posts are provided. One pair for each channel. They are designed toaccept a banana-type plug or spade lug connector (shown below) and are color codedfor easy identification. The red (+) post should always be connected to the speakers (+)jack. Th...

Page 10 - Inputs

Page 8 12999 rev 0005 Inputs Unbalanced - RCA type connectors accept line input from the preamplifier’s unbalanced output connectors. There are two input connectors, thatmay be used to connect the amplifier to the preamplifier. The Channel 3 input is used for normal operation. RCA cable connector - ...

Page 13 - Troubleshooting; PROBLEM; DO NOT USE A HEAVIER; Care and cleaning

Page 11 12999 rev 0005 Troubleshooting PROBLEM POSSIBLE CAUSE POSSIBLE SOLUTION No sound (‘on’ LED not illuminated) 1. Power cord not plugged in. 2. Power off at AC source. 3. AC power inlet fuse blownor faulty. 4. Control switch in the wrongposition. 1. Reconnect power cord. 2. Check AC switch or f...

Page 14 - ST140M SPECIFICATIONS

Page 12 12999 rev 0005 ST140M SPECIFICATIONS Power rating: 8 ohms 170 watts @ 1 kHz 4 ohms 225 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 180 Current (peak to peak) 60 Amps Slew rate 14 V / ) sec Dyna...

Page 15 - B&K Components Ltd. 2100 Old Union Road, Buffalo New York 14227

Page 13 12999 rev 0005 Limited Warranty B&K Components Ltd., referred to herein as B&K, warrants your B&K equipment against all defects inmaterial and workmanship for a period of five years from the date of purchase. This warranty appliesonly to the original purchaser and only to equipme...