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TOA Electronics BG-1015 manual

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Table of contents for the manual

  • Page 1

    OPERA TING INSTR UCTIONS MIXER PO WER AMPLIFIER BG-1015 BG-1030 BG-1060 BG-1120 Please follow the instructions in this manual to obtain the optimum results from this unit. We also recommend that you keep this manual handy for future reference.[...]

  • Page 2

    SAFETY PRECA UTIONS • Be sure to read the instructions in this section carefully before use. • Make sure to observe the instructions in this manual as the conventions of safety symbols and messages regarded as very important precautions are included. • We also recommend you keep this instruction manual handy for future reference. Safety Symbo[...]

  • Page 3

    3 • Be sure to replace the unit's terminal cover after connection completion. Because high voltage is applied to the speaker terminals, never touch these terminals to avoid electric shock. • Avoid installing or mounting the unit in unstable locations, such as on a rickety table or a slanted surface. Doing so may result in the unit falling [...]

  • Page 4

    4 T ABLE OF CONTENTS 1. GENERAL DESCRIPTION ............................................................................. 5 2. FEA TURES .......................................................................................................... 5 3. NOMENCLA TURE AND FUNCTIONS Front ...................................................................[...]

  • Page 5

    5 1. GENERAL DESCRIPTION TOA's BG-1015, BG-1030, BG-1060, and BG-1120 Mixer Power Amplifiers can mix up to a total of 5 independent input signals. Power output is rated at 15 W for the BG-1015, 30 W for the BG-1030, 60 W for the BG-1060, and 120 W for the BG-1120. All units are ideal for use in sound systems requiring small power outputs. 2. F[...]

  • Page 6

    6 1 3 2 4 5 6 7 8 9 INTEGRATED AMPLIFIER BG-1120 PROGRAM 10 0 TEL 01 0 0 MIC 10 10 00 1 0 AUX MODULE SIGNAL OFF POWER PEAK ON This figure represents the BG-1120. 3. NOMENCLA TURE AND FUNCTIONS [Front] 1. Power switch Press to turn ON the power. Press again to turn the power OFF. Note Amplifier operation is enabled about 3 seconds after the power sw[...]

  • Page 7

    7 10. Power cord Connect this cord to an AC outlet of 120 V AC. 11. Ground terminal A functional ground terminal. 12. AC outlet [UNSWITCHED] Continuously supplies up to 500 W of AC power to connected external equipment. 13. Breaker [UNIT] Cuts off the AC power to the unit when its input current exceeds the allowable value. Note The yellow button in[...]

  • Page 8

    8 20. 1 W output volume control Adjusts the 1 W OUTPUT level. Rotate clockwise to increase and counterclockwise to decrease. 21. MOH output volume control Adjusts the MOH (Music On-Hold) output signal level. Rotate clockwise to increase and counterclockwise to decrease. 22. Mute selector switch Changes the type of mute operation. (Refer to p. 10.) [...]

  • Page 9

    9 5. OUTPUT CONNECTIONS [Output terminals] Each amplifier has 3 speaker outputs: 4 Ω , 25 V and 70 V. Use only one of these outputs for connection. Class 2 wiring may be used. Note: The impedance in the figure below represents the total impedance of the speaker system. [MOH output connections] The MOH output is rated at 1 V/600 Ω [OUTPUT 1 W ou[...]

  • Page 10

    10 6.2. Module Selector Switch Settings Set the rear panel-mounted Module Selector Switch to either the PAGE or BGM position, depending on the output terminal to which the module signal is to be sent. PAGE: Signals from the installed module are only sent to the speaker outputs. BGM: The terminal to which the signal from the module is to be output d[...]

  • Page 11

    11 [Muted signal settings] Use the unit's internal jumper switch JP301 to select the signal to be muted. Select either the input signal from the TEL, MIC, and MODULE (PAGE) terminals or from the AUX, PROGRAM, and MODULE (BGM) terminals as the signal to be muted. 7.1.2. Mute operation B The mute function can be controlled by way of the rear pan[...]

  • Page 12

    12 7.5. Changing MIC and PR OGRAM Input T ypes Both MIC and PROGRAM inputs can be changed from electronically-balanced to transformer-balanced types in the procedures as follows. 7.5.1. MIC input • Install an optional IT-450 Line Transformer in the specified location on the printed circuit board. • Cut off the JP202 and JP203 jumper wires. JP20[...]

  • Page 13

    13 7.5.2. Program input • Install an optional IT-453A Line Transformer in the specified location on the printed circuit board. • Cut off the JP205 and JP206 jumper wires. JP205 JP206 T202 T201 Preamplifier board Line T ransformer IT -453A 8. INST ALLA TION Keep the unit's all sides at least 10 cm away from objects that may obstruct air flo[...]

  • Page 14

    14 10. CONTR OL SETTINGS Output levels are adjustable with individual volume controls. For music play or announcement, adjust the corresponding volume control so that the signal indicator lights intermittently. Note that the sound quality is downgraded when the peak indicator remains lit. To prevent the accidental change of the settings of input vo[...]

  • Page 15

    15 Mic – 60 dB/600 Ω Balanced Tel – 20 dB/10 k Ω Mute Module AUX – 10 dB/47 k Ω Program – 10 dB/10 k Ω IN OUT Option EBA I.T. Module 10 k Ω JP204 JP208 JP207 JP209 600 Ω ON OFF Phantom Power (DC 24 V) Option EBA I.T. I.T. Mic Vol. Tel Vol. Mute B A Tone Bass Treble Mute Cont. Mute Cont. Mute Mute Preamp OUT (Preamplifier Output)[...]

  • Page 16

    BG-1015 BG-1030 BG-1060 BG-1120 120 V AC, 60 Hz 15 W 30 W 60 W 120 W 50 W 80 W 160 W 260 W 40 W 60 W 100 W 150 W 50 – 20,000 Hz 0.05% at 1 kHz, rated output Mic: – 60 dB* 1 , 600 Ω , electrically balanced, M3 screw terminal* 2 Tel: – 20 dB* 1 , 10 k Ω /600 Ω , balanced, M3 screw terminal* 2 Program: – 10 dB* 1 , 10 k Ω , electricall[...]