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Mini Digital Amplifier, with MIC Mixer and EQ 

               

 

 

7.  RS232 Communication Protocol: 

 

Baud rate: 9600              Data bit: 8              Stop bit: 1              Parity bit: none 

 

Command 

Function Desctription 

Feedback Code 

1A1. 

Switching the audio to input 1 

A: 1 -> 1   

2A1. 

Switching the audio to input 2 

A: 2 -> 1   

0A0. 

Mute Audio of MIC and Line out 

Mute Audio 

1A0. 

Mute audio of MIC 

Mute MIC 

2A0. 

Mute audio of line out 

Mute LIN 

0A1. 

UnMute Audio 

UnMute Audio 

600% 

Checking the working status 

  A: 1 -> 1   

Volume :30   

Bass      00   

Treble 00   

601% 

MIC volume up 

Volume of MIC : 51 

602% 

MIC volume down 

Volume of MIC : 51 

603% 

Line volume up 

  Volume of LINE : 51   

604% 

Line volume down 

Volume of LINE : 51 

605% 

Bass level up 

  Bass of LINE 

  04   

606% 

Bass level down 

Bass of LINE 

  04   

607% 

Treble level up 

Treble of LINE : 04   

608% 

Treble level down 

  Treble of LINE : 04   

609% 

Initialization, back to the default setting 

  A: 1 -> 1   

Volume :50   

Bass      07   

Treble 07   

 

 

Содержание MMA220

Страница 1: ...220 Mini Digital Amplifier with EQ Mixer Index 1 General Instruction 2 2 Product Picture 2 3 Features 3 4 Specification 4 5 Audio Connection 5 6 Buttons Controlling 6 7 RS232 Communication Protocol 8...

Страница 2: ...ith EQ control and MIC mixer function It is compact size but powerful functions including the bridge connection dual mono EQ control microphone mixer etc It has a good application in different places...

Страница 3: ...the audio and MIC input and reducing the power consumption when there is no inputs coming Two stereo audio inputs switchable by button remote or RS232 Volume Bass Treble controllable by buttons or RS2...

Страница 4: ...pole Input Impedance 10K Output Impedance 50 stereo 4 8 Amplifier Audio General Frequency Response 20Hz 20KHz CMRR 70dB 20Hz 20KHz SNR 80dB at maximum output Bandwidth 20Hz 25KHz Stereo Channel Separ...

Страница 5: ...the picture below 5 2 Bridge connection 1x40Watt 8Ohm The MMA220 has the bridge connection to double the output power at 1x40Watt 8Ohm It will sum up the input left channel and input right channel to...

Страница 6: ...oth of the outputs are showing the same mono audio The connection is 6 Buttons Controlling The buttons provides the control of volume EQ control and switching 6 1 Audio switching There are two switcha...

Страница 7: ...e volume Line bass Line treble will be selected by the buttons and controlled up down mute by the function buttons Please check the picture below For example to turn up the line volume you should sele...

Страница 8: ...MIC Mute MIC 2A0 Mute audio of line out Mute LIN 0A1 UnMute Audio UnMute Audio 600 Checking the working status A 1 1 Volume 30 Bass 00 Treble 00 601 MIC volume up Volume of MIC 51 602 MIC volume down...

Страница 9: ...Treble of LINE 04 Notice 1 The letter inside bracket is the variable code which is the changeable 2 The bracket is not included to the RS232 commands 3 Any dot after the letters is part of the comman...

Страница 10: ...Mini Digital Amplifier with MIC Mixer and EQ 10 8 System Diagram 2x20Watt 4Ohm Looping connection 1x40Watt 8Ohm...

Страница 11: ...Mini Digital Amplifier with MIC Mixer and EQ 11 9 Panel Drawing Unit mm...

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