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Toa BG-115, Руководство по эксплуатации

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11

Volume control cover YA-920 
(optional)

Volume control knob

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 settings of the Program input and Mic/Tel input volume controls,
remove their knobs after setting them to the desired position and attach the optional cover YA-920 instead.

15. DIMENSIONAL DIAGRAM

Unit: mm (inches)

210 (8.27)

276 (10.87)

249 (9.8)

165 (6.5)

40

(1.58)

6-M4

1800

(70.87)

58.4 (2.3)

14 (0.55)

88.4 (3.48)

93 (3.66)

This figure represents the BG-130.

Содержание BG-115

Страница 1: ...TY INSTRUCTIONS 2 2 SAFETY PRECAUTIONS 3 3 GENERAL DESCRIPTION 5 4 FEATURES 5 5 NOMENCLATURE AND FUNCTIONS Front 6 Rear 7 6 INPUT CONNECTIONS 8 7 OUTPUT CONNECTIONS 8 8 MUTING FUNCTION 9 9 MIC TEL INPUT IMPEDANCE SELECTION 9 10 JUMPER WIRE SETTING 9 11 OPERATION 10 12 RACK MOUNTING BRACKET ATTACHMENT 10 13 VOLUME SETTING 11 14 VOLUME CONTROL COVER 11 15 DIMENSIONAL DIAGRAM 11 16 SPECIFICATIONS 12 ...

Страница 2: ...instructions pour référence ultérieure Respecter tous les avertissements Suivre toutes les instructions Ne pas utiliser cet appareil à proximité d eau Nettoyer uniquement à l aide d un chiffon sec Ne pas obstruer les orifices de ventilation Installer conformément aux instructions du fabricant Ne pas installer à proximité de sources de chaleur telles que des radiateurs des registres thermiques des ...

Страница 3: ...r éviter un risque de choc électrique 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 down and causing personal injury and or property damage External wiring connected to the terminals marked with requires installation by an instructed person The apparatus shall be connected to a mains socket outlet...

Страница 4: ...n Use Do not place heavy objects on the unit as this may cause it to fall or break which may result in personal injury and or property damage In addition the object itself may fall off and cause injury and or damage Make sure that the volume control is set to minimum position before power is switched on Loud noise produced at high volume when power is switched on can impair hearing Do not operate ...

Страница 5: ...t When the muting and grounding terminals are shorted the microphone telephone paging input mutes both the program and AUX input The amplifiers also come with independent bass and treble controls for the program and AUX inputs which increase and decrease specific frequencies Transformer isolated output terminals are provided for connection of 4 Ω speakers or for 25 V or 70 V line applications The ...

Страница 6: ...nput signal levels exceed 30 dB 4 Peak indicator PEAK Lights red when signal levels approach the signal clipping point When this lamp remains lit adjust the input level control so that the indicator lights intermittently 5 Program input volume control PROGRAM Adjusts the gain of the program input The gain increases as the control is turned clockwise 6 Mic Tel input volume control MIC TEL Adjusts t...

Страница 7: ...e MOH amplifier 15 Bass control BASS Increases the low frequency response when turned clockwise and decreases the response when turned counter clockwise The center position provides the flat response 16 Treble control TREBLE Increases the high frequency response when turned clockwise and decreases the response when turned counter clockwise The center position provides the flat response 17 Sensitiv...

Страница 8: ...nection of speaker cable C E H MIC H C E Input source H E Input source 41 Ω BG 115 21 Ω BG 130 25 V line 4 Ω 330 Ω BG 115 163 Ω BG 130 70 V line E C H MIC TEL input connections H C E Input source Program input connections AUX input connections Output terminals The amplifier has three 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 ...

Страница 9: ...10 JUMPER WIRE SETTING The amplifier is set by the factory to send AUX and Program inputs to both the output terminals and MOH output terminals This setting can be changed as shown in the table below by cutting JP202 and JP203 jumpers on the internal circuit board IMP 600 Ω 10 kΩ Factory setting Factory setting PGM AUX JP202 JP203 Output terminal MOH output terminal Cut of JP202 Outputs only the P...

Страница 10: ...at the top and the bottom of the rack and 2 above and below the unit 1U size 44 5 mm or 1 75 reference size MB 25B BK Remove four plastic feet on the bottom surface Note that these removed screws are not used Attach the MB 25B BK to the amplifier using the supplied four screws When using other screws see to it that each screw is shorter than 15 mm 0 59 MB 25B J The MB 25B J is designed to mount tw...

Страница 11: ...t the sound quality is downgraded when the peak indicator remains lit 14 VOLUME CONTROL COVER To prevent the accidental change of the settings of the Program input and Mic Tel input volume controls remove their knobs after setting them to the desired position and attach the optional cover YA 920 instead 15 DIMENSIONAL DIAGRAM Unit mm inches 210 8 27 276 10 87 249 9 8 165 6 5 40 1 58 6 M4 1800 70 8...

Страница 12: ...e tone control MOH control Muting threshold level Mic Tel selector switch Power ON OFF switch Power LED Signal LED Peak LED Automatic electronic drive limiter electronic muting Panel ABS resin black Case Steel plate black paint 210 w x 93 h x 276 d mm 8 27 x 3 66 x 10 87 3 3 kg 7 28 lb 3 9 kg 8 6 lb Model No Power Source Rated Output Power Consumption Rated output Frequency Response Total Harmonic...

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