User Manual

ManualsBrandsToa Electronics ManualsInstallation SoundBG-2120 Mixer Amplifier

OPERATING INSTRUCTIONS

MIXER AMPLIFIERS BG-2035

BG-2060

BG-2120

1. IMPORTANT SAFETY INSTRUCTIONS .... 2

2. SAFETY PRECAUTIONS ........................... 3

3. GENERAL DESCRIPTION ......................... 5

4. FEATURES ................................................. 5

5. NOMENCLATURE AND FUNCTIONS

Front ............................................................ 6

Rear ............................................................. 7

6. CONNECTIONS

6.1. Removable Terminal Plug

Connection ........................................... 9

6.2. Input Connections ................................ 9

6.3. Plug-In Module Input Connection ....... 10

6.4. Output Connections ............................ 10

6.5. Manual Mute Terminal Connection .... 11

6.6. Remote Volume Control Connection .. 11

7. MUTING FUNCTION

7.1. Manual Mute ....................................... 12

7.2. Automatic Mute .................................. 13

8. MOH OUTPUT ASSIGNMENT ................. 13

9. 2-CHANNEL BROADCAST ...................... 14

10. OPERATION ............................................. 15

11. INSTALLATION PRECAUTIONS ............. 15

12. RACK MOUNTING BRACKET

ATTACHMENT ......................................... 15

13. VOLUME SETTING .................................. 16

14. VOLUME CONTROL COVER .................. 16

15. BLOCK DIAGRAM ................................... 17

16. DIMENSIONAL DIAGRAM ....................... 18

17. SPECIFICATIONS .................................... 19

Accessories ............................................... 20

Optional Product ........................................ 20

Thank you for purchasing TOA's Mixer Amplifier.

Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.

TABLE OF CONTENTS

Summary of content (20 pages)

PAGE 1
OPERATING INSTRUCTIONS MIXER AMPLIFIERS BG-2035 BG-2060 BG-2120 TABLE OF CONTENTS 1. IMPORTANT SAFETY INSTRUCTIONS .... 2 7.2. Automatic Mute .................................. 13 2. SAFETY PRECAUTIONS ........................... 3 8. MOH OUTPUT ASSIGNMENT ................. 13 3. GENERAL DESCRIPTION ......................... 5 9. 2-CHANNEL BROADCAST ...................... 14 4. FEATURES ................................................. 5 10. OPERATION .............................................
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1. IMPORTANT SAFETY INSTRUCTIONS • Read these instructions. • Keep these instructions. • Heed all warnings. • Follow all instructions. • Do not use this apparatus near water. • Clean only with dry cloth. • Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. • Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
PAGE 3
2. SAFETY PRECAUTIONS • Before installation or use, be sure to carefully read all the instructions in this section for correct and safe operation. • Be sure to follow all the precautionary instructions in this section, which contain important warnings and/or cautions regarding safety. • After reading, keep this manual handy for future reference.
PAGE 4
CAUTION Indicates a potentially hazardous situation which, if mishandled, could result in moderate or minor personal injury, and/or property damage. When Installing the Unit • Never plug in nor remove the power supply plug with wet hands, as doing so may cause electric shock. • When unplugging the power supply cord, be sure to grasp the power supply plug; never pull on the cord itself. Operating the unit with a damaged power supply cord may cause a fire or electric shock.
PAGE 5
3. GENERAL DESCRIPTION The BG-2035 (35 W), BG-2060 (60 W), and BG-2120 (120 W) are 5-input mixer amplifiers for background music and general announcement. These units are suited for use in bars, retail stores, and banquet rooms, and are equipped with the MOH output that permits 2-channel broadcast when used in conjunction with the optional booster amplifier BA-235 (35 W) or BA-260 (60 W). 4. FEATURES • Each input freely assignable to the MOH output. • Automatic or manual mute function.
PAGE 6
5. NOMENCLATURE AND FUNCTIONS [Front] 3 10 4 5 11 6 7 8 9 2 1 This figure represents the BG-2120. 1. Power switch Power is switched on and off with each depression of this switch. Note This control is not active for the MOH output terminal (26). 2. Power indicator Lights blue when the Power switch (1) is switched on. 7. Module input volume control Adjusts gain of the Module input. Turn the knob clockwise to increase the volume and counterclockwise to decrease it.
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[Rear] 12 20 21 22 13 23 14 24 15 25 16 17 18 26 27 28 19 This figure represents the BG-2120. 12. Line 3 input terminals 10 kΩ, –10 dB*, unbalanced, removable terminal block and RCA jacks. (Upper and lower RCA jacks are internally, passively mixed.) Connect a sound source equipment such as a CD player. 13. Line 2 input terminals 10 kΩ, –10 dB*, unbalanced, removable terminal block and RCA jacks. (Upper and lower RCA jacks are internally, passively mixed.
PAGE 8
17. Manual Mute terminals Closing between (+) and (–) terminals mutes the input signal set for Mute Receive by the Function switch B (24). Opening between (+) and (–) terminals returns the previously muted signal gradually to its original level. Notes • This function is active regardless of the Automatic mute ON/OFF settings using the Function switch A (15). • This function is not active for the MOH output terminal. 18.
PAGE 9
6. CONNECTIONS 6.1. Removable Terminal Plug Connection Notes • Avoid soldering cable conductor, as contact resistance may increase when the cable is tightened and the solder is crushed, possibly resulting in an excessive rise in joint temperatures. • Use cables of AWG 12 – 24. [Cable end treatment] 2-core shielded cable Solid cable and stranded cable 7 mm (0.28”) 7 mm (0.28”) 20 mm (0.79”) [Wiring Procedure] Step 1. Wiring the supplied removable terminal plug. 1-1.
PAGE 10
6.2.3. LINE 2, LINE 3 input connections LINE 3 H E H H E Input source Input source E H Input source E Upper and lower RCA jacks are internally, passively mixed. 6.3. Plug-In Module Input Connection A single port for TOA plug-in modules is located on the unit's rear panel. Any 900 Series plug-in module can be inserted into this port. Notes • Consult your nearest TOA dealer for selection of appropriate module types. • Be sure to turn off the power before installing the module. [Installation] Step 1.
PAGE 11
6.4.2. MOH output connection The MOH output is 0 dB*, 600 Ω, and balanced (transformer–isolated). * 0 dB = 1 V MOH OUT (ZONE2) 600Ω H C E H C E Note When connecting equpment with unbalanced input, short-circuit the “C” and “E” lines as shown at right. MOH OUT (ZONE2) 600Ω H C E H E 6.4.3. Line output connection LINE OUT 600Ω The Line output is 0 dB*, 600 Ω, and unbalanced. H E H * 0 dB = 1 V E 6.5.
PAGE 12
7. MUTING FUNCTION Manual mute and Automatic mute are available for the muting function. Manual mute is a function to mute the MIC, LINE 1/TEL, LINE 2, LINE 3 and/or MODULE input placed in Mute Receive mode when the manual mute terminal is short-circuited. Automatic mute is an audio-signal activated muting function to automatically mute the MIC, LINE 1/TEL, LINE 2, LINE 3 and/or MODULE input placed in Mute Receive mode when audio signals enter the MIC, LINE 1/TEL, or MODULE input placed in Mute Send mode.
PAGE 13
7.2. Automatic Mute Step 1. Set the inputs to mute (Mute Send inputs) with the Function switch A. Shift the DIP switches 3 to 5 to ON position to place each corresponding input in Mute Send (muting) mode as follows. • DIP switch 3: MIC input • DIP switch 4: LINE 1/TEL input • DIP switch 5: MODULE input Step 2. Set the inputs to be muted (Mute Receive inputs) with the Function switch B. Shift the DIP switches 1 to 5 to ON position to place each corresponding input in Mute Receive (muted) mode as follows.
PAGE 14
9. 2-CHANNEL BROADCAST Input signals set in Chapter 8 are output to the MOH output. 2-channel broadcast can be performed when the unit is used in conjunction with the optional BA-235 (35 W) or BA-260 (60 W). (Example) When MIC, LINE 1/TEL, LINE 2, LINE 3, and MODULE input signals are output to the Zone 1, and LINE 2 input signals to the Zone 2.
PAGE 15
10. OPERATION After completing all connections, turn on the power switch, and check to confirm that the power indicator lights. Note When the heat sink temperature exceeds 105 °C (221 °F), the protection circuit begins to operate to disconnect the output from the circuit. The disconnected output is automatically restored as soon as the temperature returns to the normal operating range. 11. INSTALLATION PRECAUTIONS CAUTION Over 10 cm (3.94") Keep the amplifier over 10 cm (3.
PAGE 16
13. VOLUME SETTING 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. 14. VOLUME CONTROL COVER To prevent the accidental change of the input volume control settings on the front panel, it is recommended to replace each control knob with the supplied YA-920 Volume Control Cover.
PAGE 17
MODULE 10 kΩ LINE 3 H 10 kΩ E LINE 2 H 10 kΩ E LINE 1 H C /TEL 10 kΩ E 1.LINE 1/TEL 2.MIC PHANTOM AUTO MUTE 3.MIC 4.LINE 1/TEL 5.
PAGE 18
16. DIMENSIONAL DIAGRAM Unit: mm (in) 1800 (70.87) [Rear] [Front] [Side] 264 (10.39) 267.3 (10.52) 18 88.4 (3.48) 94.3 (3.71) 250 (9.
PAGE 19
17. SPECIFICATIONS Model No. Power Source Rated Output Power Consumption Rated Output Based on cULus standards Frequency Response Total Harmonic Distortion Input Input Sensitivity/ BG-2035 35 W BG-2060 120 V AC, 60 Hz 60 W BG-2120 120 W 94 W 50 W 163 W 265 W 80 W 120 W 50 Hz – 20 kHz 0.
PAGE 20
• Accessories YA-920 Volume control cover .................... 5 Removable terminal plug (2P) .................... 4 Removable terminal plug (3P) .................... 2 Removable terminal plug (4P) .................... 1 Removable terminal plug (5P) .................... 1 • Optional Product Rack mounting bracket: MB-1000 URL: http://www.toa.