A5MWD770-BLENOVO WIRELESS HEADSET W770 (DONGLE)

W770 Wireless Headset W770 Wireless Headset User Manual User Manual W770 Wireless Headset Product name: Lenovo Wireless Headset W770 Product standard: Q/HDLCS103-2009 Manufacturer: Lenovo (Beijing) Limited Address: No.6 Chuang Ye Road, Shangdi Information Industry Base, Haidian District, Beijing, China Zip Code: 100085 Lenovo website: www.lenovo.com W770 Wireless Headset User Manual ― 1 ― I. PRODUCT INTRODUCTION Dear customers, Thank you for selecting high-quality electronic product offered by Lenovo. This headset is manufactured with internationally advanced 2.4 GHz wireless audio transmission technology. This technology is characterized by stable signal (easily avoiding the interference of other signals with high frequency hopping anti-interference technology), long transmission distance and Hi-fi stereo. This headset consists of one USB Dongle and one receiver (headset). Its in-built Lithium polymer battery of 380 mAh provides a standby time of 6 hours, allowing you enjoy the music and chat online freely. OS requirement: WIN XP, WIN 2000, WIN 7, VISTA, Apple MAC Compatible players: MediaPlayer, RealPlayer, etc. W770 Wireless Headset User Manual ― 2 ― II. INTRODUCTION Of heaDSeT CONNeCTION 1. First, connect the USB Dongle to the USB interface of the computer. The computer will automatically recognize the USB Dongle. After it prompts that the device installation is completed, the device can be used normally (with the computer providing tips for first use). 2. Turn on the headset. After it completes connection with the USB Dongle, the headset can be used normally. III. heaDSeT bUTTONS On/Off Charging Indicator Charging Port To ggle Switch Working State Indicator 1. On/Off a. Power On: By pressing this button for over 1 second in power off state, blue LED lamp is constantly on, and the headset is started. b. Power Off: By pressing this button for over 1 second and then releasing it in power on or playing state, blue LED lamp is off, and the headset is powered off. 2. Toggle switch a. Pause/Play: In playing state, press middle part of this button to pause, and press middle part of this button again to resume the playing. b. Previous/Next: Press this button and hold for a moment to play the previous/next song. c. Volume +/-: Toggle this button upwards/downwards to increase/decrease the volume. W770 Wireless Headset User Manual ― 3 ― IV. INDICaTOR LamP 1. Red LeD lamp Red LED lamp is the charging indicator. It lights on when the device is charged, and is off when the charging completes (or low level lighting). 2. blue LeD lamp Blue LED lamp is the working state indicator. a. When power on, this lamp is on indicating the device works normally; b. This lamp is off when the device is powered off or the battery is out of power. V. mICROPhONe The microphone is hidden multi-directional microphone, providing superior gaming and chatting experience. Microphone VI. ChaRgINg INSTRUCTIONS Charging port Charging cable W770 Wireless Headset User Manual ― 4 ― 1. Connect 3.5 mm charging plug with the headset first, and connect USB connector of the charging cable with USB port of the computer or USB port of dedicated charger. Red LED lamp is on and the device enters the charging state. 2. When the charging is completed, red LED lamp is off. You could just disconnect the charging cable. Notes: ● This headset is equipped with inbuilt irremovable charging battery. Please do not remove the battery to avoid the damage to the headset. ● The charging time of the headset battery for the first time should be 12 - 24 hours to activate the best operating state of the battery. Later on, the charging time will be 2 - 3 hours (please do not charge the device for over 24 hours to avoid the damage to the service life of the battery). ● This 3.5 mm plug can only be used for connecting the charging port of over W770, but cannot connect the audio port of the audio device such as PC. VII. WeaRINg INSTRUCTIONS 1. Please distinguish the left and right side of the headset when wearing it: “L” on the bracket indicates the left side, while “R” indicates the right side. 2. Both sides of the headset are equipped with collapsible headphones. The length can be adjusted accordingly to make you enjoy the music comfortably! The stretched length is 24±1 mm. W770 Wireless Headset User Manual ― 5 ― VIII. ROTaTINg eaR PaD 90 degrees of rotation IX. faQS 1. No sound can be heard a. Check whether the USB Dongle has been plugged in USB port of the computer, and the microphone has been powered on; b. Adjust the volume with the toggle switch on the headset; c. Close and reopen the multimedia player; d. Check the headset power and charge it if low; e. If the problem persists, please re-match it by following the matching instruction. (Matching instruction: Press and hold “On/Off” button for over 15 seconds when the headset is powered on, and blue LED lamp flashes quickly and beeps. At this point, the headset enters the searching state and the matching begins. Blue LED lamps will be on constantly when the matching is completed. The best matching distance is 20 cm - 50 cm.) 2. Short receiving range Check whether there are other devices at the same frequency beside USB Dongle, and move USB Dongle to an open place. 3. During the use, you may hear sizzling sound in the headset or experience an interruption due to the interference from your surrounding wireless devices or screening of obstacles. Note: If the headset can not be powered on, the reason may be low power after long time with no use. In this case, please charge it first. W770 Wireless Headset User Manual ― 6 ― X. PRODUCT PaRameTeR headset: Drive unit ...............................................................................................................2 x 40 mm Frequency response ........................................................................................20Hz ~ 20KHz Impedance ................................................................................................32Ω…

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2.1 EUT – Appearance View

Page: 47 of 47 Lenovo (Beijing) Limited FCC ID: A5MWD770-B The results shown in this test report refer only to the sample(s) tested , This Test report cannot be reproduced, except in full, without prior written permission of the Company. WALTEK SERVICES Reference No.: WT11116682-D-E-F 17 FCC Label This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. The Label must not be a stick-on paper. The Label on these products must be permanently affixed to the product and readily visible at the time of purchase and must last the expected lifetime of the equipment not be readily detachable. Proposed Label Location on EUT EUT Top View/ proposed FCC Label Location FCC ID: A5MWD770-B

FCC ID Label Sample for Model: WD770-B WD770-B FCC ID: A5MWD770-B

2.1 EUT – Open View 2.2 EUT – PCB View

Circuit Description The USB Dongle is part of a wireless headset, it includes three main IC: IA2EH, SGM2019 and SA02. IC IA2EH, which utilizes a 16MHz OSC, controls the transceiver and USB audio process, it is a full duplex system. IC SGM2019 is the power management IC which supply the PCB power for transmitter. And the IC SA02 controls transceiver LNA and PA. The working procedures are: 1. When power on, the USB dongle will do the frequency hopping according to a certain sequence, and then send the connection command. 2. If there is a Device response, the USB dongle will judge whether it can be permitted to connect. 3. If it can be permitted to connect, then send the connection command to build up the connection. 4. While the connection build up successfully, the data transmission is beginning. At the same time, the USB dongle and device (headset) will shift frequencies in synchronization per a same pseudo randomly ordered list of hopping frequencies, the hopping rate is 250 times per second. 5. The bandwidth of the receiver, which is set to a fix width by the software, match the hopping channel bandwidth of their corresponding transmitter. 6. The USB dongle could recognize other type of devices within the ISM band to avoid hopping on occupied channels by using the build-in Intelligent Recognition Technology

55 44 33 22 11 D D C C B B A A POWER / GND 3 IA2EH USB A 1 2 Tuesday, December 21, 2010 TitleSize Document Number Rev Date: Sheet of USB_Power USBN USBP USBNUSBP GNDIO USB_Power GNDIO VCC_3.3V GNDIO GNDIO GNDIO GNDIO USB_Power GNDIO TP2 TP TP1 TP R2 22 R3 22 U6 SGM2019-3.3YN5G 123 45 INGNDEN BYPASS OUT + C14.7uF C61nF C35NC + C31uF C36NC J1USB type A, TH 1234 VCC -DATA +DATA GND C40.1uF 55 44 33 22 11 D D C C B B A A ANT1/ANT2 平平平平 L8 trace 越越越越 !! LED FunctionBy softwaredefine. EEPROM AF24BC32-SI IA2EH 3 IA2EH USB C 2 2 Tuesday, December 21, 2010 TitleSize Document Number Rev Date: Sheet of USBN 16MHz_CLK 16MHz_CLK I2C_CLK I2C_Data EEWP USBP USBP USBN ID / NO Audio LED I2C_CLKI2C_Data ID / NO Audio LED EEWP a a USBPUSBN VCC_3.3V GNDIO GNDIO VCC18VCC_3.3V VCC18 GNDIO VCC_3.3V VCC18 GNDIO GNDIO GNDIO GNDIO VCC18 GNDIO VCC_3.3V GNDIO VCC18 GNDIO GNDIO VCC_3.3V GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO VCC_3.3V GNDIO GNDIO GNDIO GNDIO VCC18 GNDIO VCC_3.3V GNDIO VCC_3.3V GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO GNDIO C470.5pF C182.2nF L3 6.8nH C4515pF R18 300 R14 1M C28 0.1uF 3.2x2.5 U5XTAL16MHZ 12 43 L6 NC TP8 TP C25 4.7uF R20NC/0R R16 300 C520.5pF C190.5pF C171.8pF C144.7nH L9 NC C30 0.1uF L71nH R1022K U7 SA02 QFN16_0.5_3X3 1 2 3 4 5678 9 10 13141516 11 12 17 PA_VB1 GND TX 1 VB_LNA RX L2L1 GND C2 ANT PA_VC2GNDTX 2PA_VC1 C1 GND GND U2AT24C64 1234 5678 A0A1A2GND SDA SCL WP VCC C23 0.1uF C26 12pF C2712pF L56.8nH R100 1.5K C10 0.1uF L42.2nH C31 15pF C460.5pF TP11TP TP9 TP C1000.5pF C503.3pF D3 LED 12 R9 1.5K L81nH TP10 TP R61.5K C511.2pF U3IA2EH 12 62 456789 11121314151610 3935363738 21 3 23 24 25 27 26 17 18 19 20 47464244 22 4143 34 33 32 31 45 28 29 30 40 64 63 61 60 59 58 57 56 55 54 53 52 51504948 65 66 67 68 EEWPIO16 (Sync LED) IO14(USB Pull-Up Control) IO33IO26IO27PWM R-Ch PPWM R-Ch NVCC3IOGNDKVCC_1.8VPWM L-Ch NPWM L-Ch PPORNRSTNGND3IO VCC18A_PLL VCCI8IO_XTAL CLKI CLKO GNDIO_XTAL IO34 IO17 (SPDIF Out) IO30 (DAC Mute) SPA3 (I2S Data) SPA2 (I2S LRCK) GNDK VCCK V18 VCC3A_REG GNDA_REG/VDT VDT_IN VDDPA XC1 CLK RATE VDD IO35 IO12IO10 IO15 (16MHz Clock Out) IO32 (DAC 3-Wire CSN) IO31 (DAC 3-Wire SCK) IO13 (DAC 3-Wire SDA) AVSS VCC3IO SPA0(I2S System Clock) SPA1(I2S BCK) GNDA_PLL USBP GND_IOK VCCK_1.8V IO25(RX Power Amplify) IO24(TX Power Amplify) IO22 IO23 DVDD VDD VSS IREF VDD VSSVSS ANT2ANT1 USBN VCC_3.3V I2C_Data I2C_CLK A1 PCB_ANT 12 W1W2 C9 0.1uF C1233nF C13 0.1uF R5 1.5K C490.5pF C1556pF

Page: 1 of 48 FCC TEST REPORT The results shown in this test report refer only to the sample(s) tested , This Test report cannot be reproduced, except in full, without prior written permission of the Company. WALTEK SERVICES Reference No.: WT11116682-D-E-F FCC ID : A5MWD770-B Applicant : Lenovo (Beijing) Limited Address : No.6 Chuang Ye Road, Shangdi Information Industry Base, Haidian District, Beijing, China Equipment Under Test (EUT) : Product Name : Lenovo Wireless Headset W770 Model No. : WD770-B Standards : FCC CFR47 Part 15 Section 15.247:2009 Date of Test : November 29 ~ December 2, 2011 Date of Issue : December 8, 2011 Test Engineer : Hunk yan / Engineer Reviewed By : Philo zhong / Manager Test Result : PASS Prepared By: Waltek Services (Shenzhen) Co., Ltd. 1/F, Fukangtai Building, West Baima Rd., Songgang Street, Baoan District, Shenzhen 518105, China Tel :+86-755-27553488 Fax:+86-755-27553868 Page: 2 of 48 Lenovo (Beijing) Limited FCC ID: A5MWD770-B The results shown in this test report refer only to the sample(s) tested , This Test report cannot be reproduced, except in full, without prior written permission of the Company. WALTEK SERVICES Reference No.: WT11116682-D-E-F 2 Test Summary Test Items Test Requirement Result Radiated Spurious Emissions (9kHz to 25GHz) 15.205(a) 15.209 15.247(d) PASS Conduct Emission 15.207 PASS 20dB Bandwidth 15.247(a)(1) PASS Maximum Peak Output Power 15.247(b)(1) PASS Frequency Separation 15.247(a)(1) PASS Number of Hopping Frequency 15.247(a)(1)(iii) PASS Dwell time 15.247(a)(1)(iii) PASS Maximum Permissible Exposure (Exposure of Humans to RF Fields) 1.1307(b)(1) PASS Page: 3 of 48 Lenovo (Beijing) Limited FCC ID: A5MWD770-B The results shown in this test report refer only to the sample(s) tested , This Test report cannot be reproduced, except in full, without prior written permission of the Company. WALTEK SERVICES Reference No.: WT11116682-D-E-F 3 Contents Page 1 COVER PAGE ........................................................................................................................................................ 1 2 TEST SUMMARY .................................................................................................................................................. 2 3 CONTENTS............................................................................................................................................................. 3 4 GENERAL INFORMATION ................................................................................................................................ 5 4.1 CLIENT INFORMATION........................................................................................................................................... 5 4.2 GENERAL DESCRIPTION OF E.U.T. ........................................................................................................................ 5 4.3 DETAILS OF E.U.T................................................................................................................................................. 5 4.4 DESCRIPTION OF SUPPORT UNITS.......................................................................................................................... 5 4.5 STANDARDS APPLICABLE FOR TESTING................................................................................................................ 5 4.6 TEST FACILITY...................................................................................................................................................... 6 4.7 TEST LOCATION.................................................................................................................................................... 6 5 EQUIPMENT USED DURING TEST .................................................................................................................. 7 6 CONDUCTED EMISSION .................................................................................................................................... 9 6.1 E.U.T. OPERATION................................................................................................................................................ 9 6.2 EUT SETUP......................................................................................................................................................... 10 6.3 CONDUCTED EMISSION TEST RESULT................................................................................................................. 10 6.4 PHOTOGRAPH – CONDUCTED EMISSION TEST SETUP.......................................................................................... 13 7 RADIATED SPURIOUS EMISSIONS ............................................................................................................... 14 7.1 EUT OPERATION :............................................................................................................................................... 14 7.2 MEASUREMENT UNCERTAINTY........................................................................................................................... 14 7.3 TEST SETUP......................................................................................................................................................... 15 7.4 SPECTRUM ANALYZER SETUP............................................................................................................................. 16 7.5 TEST PROCEDURE................................................................................................................................................ 17 7.6 CORRECTED AMPLITUDE & MARGIN CALCULATION........................................................................................... 17 7.7 SUMMARY OF TEST RESULTS.............................................................................................................................. 18 7.8 PHOTOGRAPH – RADIATION SPURIOUS EMISSION TEST SETUP................................…

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2.1 Photograph – Conducted Emission Test Setup 2.2 Photograph – Radiation Spurious Emission Test Setup Below 1GHz Above 1GHz