Helmer BM211 User manual

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ManualInstructions
BM211
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Contents
SafetyInformation
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Chapter1:Understandingyouramplifier
1.1Features
1.2PackageContent
1.3RemoteControl
1.4WiringInstruction
1.5DeviceLayout
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Chapter2:Installation
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Chapter3:GettingStarted
3.1Display
3.2TurnON/OFFthedevice
3.3InputSource
3.4TimeSetting
3.5TimeSwitchON/OFFSetting
3.6Enable/DisableTimeSwitchON/OFFFunction
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Chapter4:TechnicalParameters

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SafetyInformation
1.Don’tusethisproductinawetenvironment.
2.TheproductappliestopowersupplyAC100‐250V,ifyoudon'tuseitfora
longtime,pleaseturnoffthepower.
3.Pleasemakesurethatthespeakerline,powerline,audioinputlineare
connectedcorrectly.
4.Don’topenandrepairtheproductbyyourself.
5.Iftheproductcrashes,youcanpresstheresetbuttoninthelowerleft
corneroftheproducttoreset.
Chapter1:Understandingyouramplifier
1.1Features
1.3.0‐inchLCDscreenwithtouchkey.
2.StereoAmplifierModule(2x25W)
3.Bluetoothconnectivityforwirelessaudioinputofsmartphone,pad,etc.
4.1xWiredAudioInput(onrearPCB)
5.USBandTFcardplayer(atbottomofunit)
6.1xWiredAudioOutput(onrearPCB)
7.Settimetoturnon/offdevice.
8.Supportcalendardisplay.
9.Supportinfraredremotecontrol.
10.SupportMP3,WMA,MAVformat.
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1.2PackageContent
1xamplifier
1xremotecontrol(cellbatteryisnotincluded)
2xscrewsformounting
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1.3RemoteControl
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1.4WiringDiagram
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① ON/OFF
② OK/confirm
③ Mute
④ Play/Pause
⑤ Volumeup
⑥ Next
⑦ Previous
⑧ Volumedown
⑨ Mode
⑩ Escape

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1.5DeviceLayout
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Chapter2:Installation
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Pryoffscreenandamplifierpart.Becarefulincaserippingoutthecable
connectedinbetween.
Mountingtheamplifierpartonbackboxwithscrews.
Pressthescreenparton.
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Chapter3:QuickStart
3.1Display
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3.2TurnON/OFFthedevice
SlidetheswitchtoON.Thedeviceisstandbystatusthen.
LongpressON/OFFbuttonondevicetoturnonthedevice.Thenyoucan
choosetheinputsourceandadjustvolume.
LongpressON/OFFbuttonondeviceagaintoturnoffthedevice.Timewillbe
shownonscreen.
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3.3Inputsource
Afterturnonthedevice,press“M”buttontochoosedifferentinputsource.
WhenchangetoBluetooth,youcanfindtheBluetoothname“MUSIC”from
mobilephoneorpad.Choosetopairwithit.Thenyoucanplaymusicfrom
phonetoamplifier.
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3.4TimeSetting
Atstandby,longpress“M”button,MONTHflash,pressvolumeup/downto
adjust.

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Thenshortpress“M”button,DAYflash,pressvolumeup/downtoadjust.
Thenshortpress“M”button,WEEKflash,pressvolumeup/downtoadjust.
Thenshortpress“M”button,HOURflash,pressvolumeup/downtoadjust.
Thenshortpress“M”button,MINUTEflash,pressvolumeup/downtoadjust.
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3.5TimeSwitchON/OFFSetting
Shortpress“M”buttonuntilbothHOURwithclockiconflashtogethertoget
intoTIMESWITCHONsetting,pressvolumeup/downtoadjusthour.
Thenshortpress“M”button,MINUTEwithclockiconflash,pressvolume
up/downtoadjustminute.
Aftersetting,theclockiconisshownonscreen,thetimeswitchonfunctionis
working.
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Shortpress“M”buttonuntilbothHOURwithSLEEPiconflashtogethertoget
intoTIMESWITCHOFFsetting,pressvolumeup/downtoadjusthour.
Thenshortpress“M”button,MINUTEwithSLEEPiconflash,pressvolume
up/downtoadjustminute.
Aftersetting,theSLEEPiconisshownonscreen,thetimeswitchofffunction
isworking.
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3.6Enable/DisableTimeSwitchON/OFFFunction 
Enable/Disablethetimeswitchonfunction(clockicon):
WhendeviceON:Shortpress“AL”buttononremotecontrol 
WhendeviceOFF:Longpressvolumedownbuttonondevice
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Enable/Disablethetimeswitchofffunction(sleepicon):
WhendeviceON:Shortpress“SLEEP”buttononremotecontrol 
WhendeviceOFF:Longpressvolumeupbuttonondevice
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Chapter4:TechnicalParameters
3"LCDScreen
PowerSupply:AC100‐250V
OutputPower:25W+25W(Max)
InputImpedance:10KΩ
OutputImpedance:4‐8Ω
THD:0.03%
Frequencyresponse:20Hz‐20KHz
ExtendedSDcardupto32G
BluetoothTransmissionDistance:≤10M
Productsize:86x86x54mm
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