TOA BG-1120 - Manuals - manualsarea.com

Page 2 - SAFETY PRECAUTIONS; Safety Symbol and Message Conventions; WARNING; IMPORTANT SAFETY INSTRUCTIONS; When Installing the Unit

SAFETY PRECAUTIONS • 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 manua...

Page 3 - CAUTION

3 • Be sure to replace the unit's terminal cover after connection completion. Because high voltage isapplied to the speaker terminals, never touch theseterminals to avoid electric shock. • Avoid installing or mounting the unit in unstable locations, such as on a rickety table or a slantedsurface. Do...

Page 4 - TABLE OF CONTENTS; Changing MIC and PROGRAM Input Types

4 TABLE OF CONTENTS 1. GENERAL DESCRIPTION ............................................................................. 5 2. FEATURES .......................................................................................................... 5 3. NOMENCLATURE AND FUNCTIONS Front .......................

Page 5 - GENERAL DESCRIPTION

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 5independent input signals. Power output is rated at 15 W for the BG-1015, 30 W for the BG-1030, 60 W for theBG-1060, and 120 W for the BG-1120. All units are ideal for use in sound ...

Page 6 - NOMENCLATURE AND FUNCTIONS; Lights green when the power is switched on.; Protection function to be noted on operation

6 1 3 2 4 5 6 7 8 9 INTEGRATED AMPLIFIER BG-1120 PROGRAM 10 0 TEL 0 10 0 MIC 10 10 0 0 10 AUX MODULE SIGNAL OFF POWER PEAK ON This figure represents the BG-1120. 3. NOMENCLATURE AND FUNCTIONS [Front] 1. Power switch Press to turn ON the power. Press again to turnthe power OFF. Note Amplifier operati...

Page 7 - Note

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 powerto connected external equipment. 13. Breaker [UNIT] Cuts off the AC power to the unit when its inputcurrent exceed...

Page 8 - INPUT CONNECTIONS

8 20. 1 W output volume control Adjusts the 1 W OUTPUT level. Rotate clockwiseto increase and counterclockwise to decrease. 21. MOH output volume control Adjusts the MOH (Music On-Hold) output signall e v e l . R o t a t e c l o c k w i s e t o i n c r e a s e a n dcounterclockwise to decrease. 22. ...

Page 9 - OUTPUT CONNECTIONS; Each amplifier has 3 speaker outputs: 4

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 M...

Page 10 - Caution; EQUIPMENT SETTINGS; Be sure to leave settings to a qualified technician.

10 6.2. Module Selector Switch Settings Set the rear panel-mounted Module Selector Switch to either the PAGE or BGM position, depending on theoutput 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 w...

Page 11 - The mute function cannot be controlled by means of an input signal.; Close

11 [Muted signal settings] Use the unit's internal jumper switch JP301 to select the signal to be muted. Select either the input signal fromthe TEL, MIC, and MODULE (PAGE) terminals or from the AUX, PROGRAM, and MODULE (BGM) terminalsas the signal to be muted. 7.1.2. Mute operation B The mute functi...

Page 13 - • Cut off the JP205 and JP206 jumper wires.

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 Transformer IT-453A 8. INSTALLATION Keep the unit's all sides at least 10 cm away f...

Page 14 - CONTROL SETTINGS; DIMENSIONAL DIAGRAM

14 10. CONTROL SETTINGS Output levels are adjustable with individual volume controls. For music play or announcement, adjust thecorresponding volume control so that the signal indicator lights intermittently. Note that the sound quality isdowngraded when the peak indicator remains lit. To prevent th...