CMA220N Mini Digital Amplifier User Manual
Contents
1. 0A1 Unmute Audio Unmute Audio A 1 gt 1 Volume 30 amp 600 Checking the working status 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 A 1 gt 1 Initialization back to the default Volume 50 609 setting Bass 04 Treble 04 5 x x Preset MIC volume xx arranges Volume of MIC 50 from 00 to 60 61 degrees in total 7 x x Preset line volume xx arranges Volume of LINE 50 from 00 to 60 61 degrees in total 8 x x Preset the bass level xx arranges Bass of LINE 04 from 00 to 08 9 degrees in total 9 x x Preset the treble level xx arranges Treble of LINE 04 from 00 to 08 9 degrees in total Notice 1 The letter inside bracket Jis the variable code which is changeable 2 The bracket is not included to the RS232 commands 8 3 Any dot after the letters is part of the commands Example 1 Switching the input 2 to the line out RS232 command is 2A1 Example 2 Turning up the volume of line audio RS232 command is 603 Example 3 Preset the MIC volume to 21 degree RS232 command is 521 Example 4 Checking the working st2. 3 We offer products for all three year warranty which starts from the first day you buy this product The purchase invoice shall prevail 4 Any problem is same with one of the following cases listed we will not offer warranty service but offer for charge e Beyond the warranty e Damage due to incorrectly usage keeping or repairing e Damage due to device assembly operations by the maintenance company non assigned No certificate or invoice as the proof of warranty The product model showed on the warranty card does not match with the model of the product for repairing or had been altered e Damage caused by force majeure 13
3. 2x20Watt 4Ohm so user can connect the amplifier output in the regular way As the picture below Switching to amm the STEREO Connecting the four pins like this 4 1 2 Bridge connection 1x40Watt 8Ohm The mini digital amplifier 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 be mono output and the power is up to 40Watt Switching to the BRIDGE The bridge connection is Speaber Connecting the two pins like this 4 1 3 Dual mono Output The mini digital amplifier also has the function of double mono output It can sum up the left and right channel to be the mono audio output In this way the both of the outputs are showing the same mono audio The connection is 4 2 Microphone input Connecting the four pins like this The microphone input of the mini digital amplifier has three modes and different modes use different connections as the picture below O 4 2 1 48V phantom power input When the switch turns to 48V the MIC input will provide a 48V phantom power This is usually used for power supply for condenser microphone Connection is connects to positive connects to negative and to ground Note In this mode only condenser microphone can be connected with 4 2 2 MIC input When the switch turns to MIC the microphone input is used for connecting with dynamic mi
4. the level or mute the output Firstly to select the function from this menu q For example to turn up the line volume you should select the LINE first and then press the button MW 5 2 Usage of the IR Remote Use to transmit the infrared signal send by the IR remote Audio Inputs 2 RCA dual mono audio inputs 1 3 5mm jack Mute Mode MIC Mute the microphone volume LINE Mute the line volume SPEAKER Unmute Audio Controlling Modes MIC turn up down the microphone volume LINE turn up down the line volume BASS bass tuning TREBLE treble of line volume Mini Ampaifter IR receiver works together with the IR remote Please point the IR remote at the IR receiver Insert it into the when use to avoid getting out specialized PA3 of control as there is no signal socket 3 5mm to detected connect the IR receiver with PA3 3 5mm jack NO for charge 6 System Diagram RS232 e control panel i 3 Pr X 2 ta laa g vec Speaker 7 Communication Protocol and Command Codes Communication Protocol RS232 Communication Protocol Baud rate 9600 Data bit 8 Stopbit 1 Parity bit none 1A1 Switching the audio to input 1 A 1 21 2A1 Switching the audio to input 2 A 2 21 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
5. CMA220N Mini Digital Amplifier ar All Rights Reserved Version Mini Digital Amplifier 2013V1 2 Mini Digital Amplifier NOTICE Please read this user manual carefully before using this product This manual is for operation instruction only not for any maintenance usage The functions described in this version are updated till January 2013 Any changes of functions and parameters since then will be informed separately Please refer to the dealers for the latest details All rights reserved No part of this publication may be copied or reproduced without permission All product function is valid till 2013 01 07 Update History Version Date Update Content 1 0 2012 12 25 First version 1 1 2012 12 28 Update the pictures related to the IR remote 1 2 2013 01 07 Modified some operation commands Mini Digital Amplifier Table of Contents 1 Introduction z 1 Introduction to the Mini Digital Amplifier iran Contents dai En Connection Introduction Ya Audio Output ye 1 Default output 2x20Watt 4Ohm 4 1 E connection 1x40Watt 8Ohm 41 Dn Output e input ma va phantom power input 4 2 2 MIC input NE input 5 Operation of in Control Panel and the IR Remote i Operation of the Control Panel 2 1 Audio switching 5 1 Bungee controlling 5 2 Usage TE IR Remote ARIETE SA Protocol and Command Codes i Drawing IRC amp Maintenance PRA Operation Guide sa Service Mini Digital Am
6. atus of the mini digital amplifier RS232 command is 600 8 Panel Drawing i 123 00 mm 87 00mm 38 00 mm 96 00 mm 38 00 mm 9 Troubleshooting amp Maintenance 1 When there is no output audio Check if there is any signal at the input Check if there is any signal at the output We can check these by using an oscilloscope or a multimeter If there is no signal input output maybe the input output cables broken or the connectors loosen please change for another cable o Check if the output port number is the same with the controlled one e If not the problem mentioned above probably there is something broken inside the unit please send it to the dealer for repairing If the POWER indicator doesn t work or no respond to any operation please make sure the power cord connection is good If the output sound is interfered please make sure the system is grounded well If the static becomes stronger when connecting the audio connectors it probably due to bad grounding please check the grounding and make sure it connected well otherwise it would damage the converter If the mini digital amplifier amplifier cannot be controlled by the keys on the front panel RS232 port or IR remote the unit may has already been broken Please send it to the dealer for repairing 11 10 Safety Operation Guide In order to guarantee the reliable operation of the eguipments and safety of the staff please abide b
7. crophone There are two different connections 1 Unbalanced connection L connects to ground and connects to signal L connects to ground and connects to signal 2 Balanced connection connects to positive connects to negative and connects to ground 4 2 3 LINE input When the switch turns to LINE the microphone input is used for connecting with normal audio or wireless microphone output There are two different connections 1 Unbalanced connection connects to ground and connects to signal D connects to ground and connects to signal oy 2 Balanced connection connects to positive connects to negative and connects to ground 5 Operation of the Control Panel and the IR Remote 5 1 Operation of the Control Panel The buttons provides the control of volume E control and switching The following content introduces audio switching and E control in detail 5 1 1 Audio switching There are two switchable stereo audio inputs one 2xRCA input and one 3 5mm jack input switchable through the buttons as below Source Selection 5 1 2 Volume EQ controlling The line volume and MIC volume can be controlled by the buttons The MIC Volume LINE 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 Then to turn down up
8. plifier 13 1 Introduction 1 1 Introduction to the Mini Digital Amplifier The Mini Digital Amplifier is a compact size digital amplifier Class D with 3 inputs 2 line in and 1 balanced MIC It is integrated with powerful functions including bridge connection dual mono EO control microphone mixer etc It has a good application in different places including classroom small meeting room lecture hall bar pub etc 1 2 Package Contents gt 1x Mini Digital Amplifier The mounting ears and the Mini Digital Amplifier are as a whole gt 1x Power Cord gt 1x User Manual gt 1x Warranty Card Notes gt The IR remote and its battery are offered for charge separately gt The IR receiver is also offered for charge gt Please confirm if the product and the accessories are all included if not please contact with the dealers 2 Features e 2x20Watt 4Ohm as the default amplifier output e Bridge connection function User can switch the mini digital amplifier to be 1x40Watt 8Ohm by bridge connection e Two stereo audio inputs switchable by button IR remote amp RS232 e Volume Bass Treble controllable by buttons IR remote amp RS232 e MIC port can support balance unbalance signal suppress the external noise effectively e Line audio output at 3 5mm jack with volume controllable e Dual mono function User can sum up the stereo audio to two times mono audio e MIC mixer function The microphone will be mi
9. xed to the line audio output and be controlled separately e MIC input supports 48V phantom power dynamic MIC and wireless MIC e Auto noise gate It keeps detecting the audio and MIC input will mute the output when there is no input e Ultra low inrush current no need for power sequencing This allows multiple mini digital amplifier to be powered on simultaneously without overloading power circuits e Convection cooler fan is not needed e Antistatic case design providing good protection for long term and stable performance 3 Specification 2 stereo audio 1 amplifier Input 1 MIC Cupu 1 stereo audio TA 1 3 5mm jack 1 3 5mm jack Input Output 1 captive screw 1 captive screw Connector Connector connector 4P connector 3P 5 08mm 3 81mm Input Output 500 stereo 4 80 gt 10KO i Impedance Impedance Amplifier 3 hole phoenix Frequency 20Hz 20KHz CMRR gt 70dB 20Hz 20KHz Response SNR Pee RAN Bandwidth 20Hz 25KHz output Stereo 1 1KHz Channel erode aa THD Noise 0 3 20KHz 20KHz l Separation at nominal level Voltage Gain 32dB Power Output 2x20 Watts 4 Ohms RS232 Control Panel Control Optional button control connector IR Remote Optional IR remote TCP IP Control TCP IP controlled by the programmable interface 4 System Connection Introduction 4 1 Audio Output 4 1 1 Default output 2x20Watt 4Ohm The default output of amplifier is
10. y the following proceeding in installation using and maintenance 1 The system must be earthed properly Please do not use two blades plugs and ensure the alternating power supply ranged from 100v to 240v and from 50Hz to 60Hz Do not put the device in a place of too hot or too cold As the power generating heat when running the working environment should be maintained fine ventilation in case of damage caused by overheat Please cut off the general power switch in humid weather or left unused for long time Before following operation ensure that the alternating current wire is pull out of the power supply e Take off or reship any components of the equipment e Take off or rejoin any pin or other link of the equipment As to non professional or without permission please DO NOT try to open the casing of the equipment DO NOT repair it on your own in case of accident or increasing the damage of the equipment DO NOT splash any chemistry substance or liquid in the equipment or around 12 11 After sales Service 1 If there appear some problems when running the mini digital amplifier please check and deal with the problems reference to this user manual Any transport costs are borne by the users during the warranty 2 You can email to our after sales department or make a call please tell us the following information about your cases e Product version and name e Detailed failure situations e The formation of the cases
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