Bose FreeSpace IZA 190-HZ 설치 및 운영 매뉴얼 - 페이지 34

{카테고리_이름} Bose FreeSpace IZA 190-HZ에 대한 설치 및 운영 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Bose FreeSpace IZA 190-HZ 44 페이지. Rack mount kit for amplifiers
Bose FreeSpace IZA 190-HZ에 대해서도 마찬가지입니다: 설치 및 운영 매뉴얼 (22 페이지), 빠른 시작 매뉴얼 (2 페이지)

페이지 인쇄

Troubleshooting

Problem

No power

Power is on, but no sound

Power is on, but sound is low

Sound is distorted

Unnatural sound

Page 34

Installation and Operation

• Turn on power� Blue LED on front-panel will be visible when power is on�

• Make sure the power cord is plugged in�

• Try a different AC outlet that is working with another piece of equipment�

• Make sure the input source is turned on�

• Verify that there is an input signal from the source�

• Check the cable connections from the source to the amplifier�

• Ensure the desired source (A/B) is selected on the front panel�

• If a user interface is connected to the Remote connector on the rear panel, make

sure the desired source (A/B) is selected on user interface (user interface overrides

the front-panel source select)�

• Make sure the Master Level control is turned up�

• If a user interface is connected to the Remote connector on the rear panel, make

sure the volume control on the user interface is turned up (user interface overrides

the front-panel Master Level control)�

• Make sure a 1/8" (3�5 mm) TRS input cable is not connected to the Aux Input�

The Aux Input has a mechanical override feature so if an input cable is connected

to it the selected Input A/B source will be automatically overridden - even if the Aux

Input audio source is not playing or connected�

• If a contact closure is connected to the Mute connector on the rear panel, check the

switch to ensure the mute function has not been triggered�

• If a source is connected to the Page connector on the rear panel, make sure it has

not been triggered�

• Make sure loudspeakers are connected properly�

• Check that loudspeaker taps are set correctly�

• Check that the amplifier has adequate ventilation� Improper ventilation could cause

the amplifier to go into protection mode and no audio will be heard�

• Ensure that the output wiring is correct� A short circuit will cause the amplifier to go

into protection mode and no audio will be heard�

• Verify that the audio input source output is turned up to a nominal level�

• Check the cable connections from the source to the amplifier�

• Increase input level of source with Gain controls on amplifier� Turn Gain knob up until

you start seeing red Input Clip LED on front-panel� Then turn Gain down until red

LED Input Clip does not engage�

• Make sure Output Trim controls on amplifier are not turned down too much�

• If a user interface is connected to the Remote connector on the rear panel, make

sure the volume control on the user interface is turned up (user interface overrides

the front-panel Master Level control)�

• Verify that the Input Clip red LED on the front-panel is not lit� If LED is red, reduce

the source output level or reduce the input gain�

• If the input source signal is clean, verify that the loudspeakers are not overdriven or

damaged� Check the loudspeaker tap setting�

• Verify that the proper EQ preset is selected for the loudspeakers being used�

Use HPF setting when using loudspeakers other than FreeSpace

loudspeakers�

• Check the Treble and Bass controls on the front-panels�

• Verify that the loudspeakers are wired correctly (+ to + and - to -)�

Solution

pro.Bose.com

DS 16/DS 40

English