HANSONG HANSONG NANJINGTECHNOLOGY CO. , LTD. User manual Version:
Initiated by:
Date:
V1.0 Burgess 20210104 Reviewed by:
Date:
Approval List Function Group Leader R&D Manager Project Manager Program Manager SCM Manager QA Manager Customer Please copy locally. Name Date Signature All rights reserved. Reproduction in whole or in part without permission is prohibited.
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HANSONG HANSONG NANJINGTECHNOLOGY CO. , LTD. Document History Date Version Author Change 2020.01.04 V1.0 Burgess Document Confidentiality For internal use only
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HANSONG HANSONG NANJINGTECHNOLOGY CO. , LTD. INTRODUCTION General Product Description The BM240 is an amplifier box for built-in power supply ,It Can play optical source , bluetooth source and Aux source music. It includes a left and a right channel for stereo.There is a pair button and an indication of RGB lights.and a dial switch for selecting a different EQ . Definitions, Acronyms, Symbols and Abbreviations Abbreviation CRS Comment Abbreviation dB Comment Decibel: Unit of Sound Level 1 1.1 1.2 EMC LED N/A Oct TA TBC TBD ID DV or DVT DM or DMT FM RMS PHC RH ESD S/N THD EUT SoC FR OEM
Customer requirements Specifications Electro Magnetic Compatibility Light Emitting Diode Not Applicable octave Type Approval To be confirmed To be defined Industrial Design Design Verification Test Design Maturity Test Frequency Modulation Root Mean Square Power Handling Capacity Relative Humidity Electro Static Discharge Signal to Noise Ratio Total Harmonic Distortion Equipment Under Test Statement of Conformance Flame Retardants Original Equipment Manu fact. Important remark Hz BSMI SASO NOM PC ABS POM CE FCC ODM PSS&L 50N TR TCMF PMPO IEC Fo TPU SPL HDMI HDCP CEC FRS Hertz: Unit of Frequency Bureau of Standards, Metrology and Inspection Saudi Arabian Standards Organization Normas Officials Mexicans Polycarbonate Acrylonitrile Butadiene Styrene Polyoxymethylene Conformit Europenne Federal Communications Commission Original Design Manufacturer Product Safety, Security & Liability 50 Newton Trial Run Test Case Management File Peak Music Power Output Intern. Electro technical Commission Resonance Frequency Thermo Plastic Urethane Sound Pressure Level High-Definition Multimedia Interface High-bandwidth Digital Content Protect. Consumer Electronics Control Functional Requirement Specification Table 1 Definitions
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HANSONG HANSONG NANJINGTECHNOLOGY CO. , LTD. 3 General Product Overview Front Panel:
AUX input Optical input Service (softwear updata) BT/Pair button 100-240V~50/60Hz,80W (Power in) Rear Panel:
Dial switch(choose a different EQ) Output terminal( left and right)
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HANSONG HANSONG NANJINGTECHNOLOGY CO. , LTD. Remote:
Mute Power Volume up Last Pause Next Volume down Aux source Optical sourse BT source When pushing |<< on the remote for 2s BT pairing is turned OFF When pushing >>| on the remote for 2s BT pairing is turned ON When pushing the BT button on remote for 2s the device is disconnected from the phone currently paired with the BM240, this allows a change in who is connected via remote 3.2 Functions
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HANSONG HANSONG NANJINGTECHNOLOGY CO. , LTD. 3.3 Key Features and Performance 1. Bluetooth input source, requires Distance greater than 10m in open distance. 2.The pair bottom can set the bluetooth . 3.The RGB LED indicate different states . 4. Remote control. requires Distance greater than 10m in open distance. 3.4 Special connectors & modes. Debug/Tuning connector A 6 pin connector will be present on the PCBA to allow the connection to the MCU for Debug and Tuning purpose. Factory test mode Set the dial switch as below picture. 4 System Structure Optical input can support a rate of 192Khz . Dont support Dolby and DTS . only PCM 2.0. 4.1 Digital-in 4.2 Analog-in 4.3 BT-in Aux input max 1.25V rms input, standby mode by audio signal detector . ATS2819 moudle, Can support BT5.0 .
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HANSONG HANSONG NANJINGTECHNOLOGY CO. , LTD. 4.4 DSP-functionality The DSP(ADAU1761) functionality consists of the following features:
Volume control EQ 4.5 Amplification The AMP(TPA3116) is class D type, driving 4 ohms speakers. User Interface 4.6 1: output terminal (4 ohm loads can be connected and output 2X25W) 2: AC in (100-240V~50/60Hz,80W ) 3pair button (the remote control pair and reboot the BT) 4: indication LED 5optical terminal 6: Dial switch (set different EQ) Bottom pair bottom : the remote control pair and factroy reset.
- Press and hold on till blink red: factroy reset. indication LED LED 1x RGB LED Bluetooth mode Blue Optical ORANGE AUX GREEN 4.6.1 The buttons feature and led features. Buttons:
Button name pair button Button operation Short Press Press hold on till blink red LED:
Feature Enter the remote control pairing mode factroy reset
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HANSONG HANSONG NANJINGTECHNOLOGY CO. , LTD. The meaning Standby mode AUX source OPT source BT source Factory data reset Led RGB Behavior Solid Red Solid Green Solid Orange Solid Blue Blink Red fast Performance specifications 5 5.1 Test conditions: BM240 coneccted with 4 ohm load . Audio Specifications 5.1.1 Power AMP Section (Test mode) PARAMETER(aux in) Continuous Average Power THD S/N Frequency Response CHANNEL SEPARATION Sensitivity PARAMETER(optical in) Continuous Average Power THD S/N Frequency Response CHANNEL SEPARATION Sensitivity PARAMETER(BT in) 4 ohms 4 ohms 4 ohms 25W 25W 1kHz 1kHz 1kHz 20Hz - 20 kHz 4 ohms 25W 25W 1kHz 1kHz 1kHz 20Hz - 20 kHz SPECS SPECS 25W 1%
80dB( A-weighted)
+/-0.5dB 60db 800mv 25W 1%
80dB( A-weighted)
+/-0.5dB 60db 800mv SPECS Continuous Average Power THD 4 ohms 4 ohms 25W 1kHz 1kHz 25W 1%
FCC regulatory conformance This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
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HANSONG HANSONG NANJINGTECHNOLOGY CO. , LTD. part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help NOTE: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the users authority to operate the equipment. RF Exposure This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. IC regulatory conformance This device complies with CAN ICES-003 (B)/NMB-003(B). This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions:
(1) This device may not cause interference.
(2) This device must accept any interference, including interference that may cause undesired operation of the device. Cet appareil est conforme la norme CAN ICES-003 (B)/NMB-003 (B). Cet appareil contient des metteurs / rcepteurs exempt (s) de licence qui sont conformes aux RSS exemptes de licence d'Innovation, Sciences et Dveloppement conomique Canada. Son fonctionnement est soumis aux deux conditions suivantes:
(1) Cet appareil ne doit pas provoquer d'interfrences.
(2) Cet appareil doit accepter toute interfrence, y compris les interfrences susceptibles de provoquer un fonctionnement indsirable de l'appareil. RF Exposure This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. Cet quipement est conforme aux limites d'exposition aux radiations de la IC dfinies pour un environnement non contrl.
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