The rambler is the old name of the old name, and the product covers a desktop speaker, a wired headset, a Bluetooth headset, a true wireless headset and other product lines. Recently, the speeches started the layout of the noise-saving headset market, brought new products W860NB, which is a headset with a headset.
The noise reduction headset has always been synonymous with high-end headphones, in which the high-end market has been occupied by overseas brands, and the speeches of the wanders have different significance, causing the industry's attention.
By the following detailed dismantling, you will study this product, work, and internal materials with everyone.
First, the walkper W860NB Bluetooth active noise reduction stereo headset out of the box
The Snapers W860NB Bluetooth Active Noise Reduction Stereo Headphones The default is placed in the protective box, and the zipper is pulled out. This protection box can not only accommodate headphones, but also contribute to the process of transportation, and fixed earphones.
Protect box close-up, this location of the mesh bag, can put the wire, aviation plug, headset extension line, etc. The inside of the velvet material, delicate hand, does not wear the headphones.
The pull-up close-up of the headphones protective case, the brand mark of Edifier is added to the zipper small detail by hot press.
The supplied MicroSB charging lines, both data transmission function.
Attached 3.5mm extension line, one of which is the elbow design.
Snapers W860NB Bluetooth Active Noise Reduction Stereo Headphones.
The left and right of the headphones, there are R, L flag in the headphones cover.
The top head support, PU material, covered with sponge, soft and flexible.
Adjusting the slide close-up of the left and right eurosal length of the headset, this side screen prints the product model W860NB.
There is also a nameplate of the product on the earphones, the information inside contains models W860NB, input 5V 1A, FCC ID, CE certification, product and other information.
Rotating shaft body close-up.
NFC logo, visible W860NB Bluetooth active noise reduction stereo headset supports near field communication, more convenient and fast with mobile phone connection.
3.5mm audio hole close-up, indicating that this headset can also achieve wired headphones in the audio cable.
Electricity, matching indicator, DC IN charging interface close-up.
The charging interface of the headset, the MicroSB specification, and there is a dustproof plug in the outside.
Thick PU material earmuffs.
Microphone is close-up, visible metal mesh, prevent foreign matter from entering the headset.
The W860NB Bluetooth Active Decourage Stereo Headphones The tuning hole is hidden in the unit.
Tuning hole closeup.
ANC noise reduction switch, can be dial up and down to turn noise reduction function on and off.
ON / OFF switch button.
Call microphone hole.
With a mobile phone charger, the Snaker W860NB Bluetooth active noise reduction stereo headset is charged, and the ChargerLab Power-Z portable current voltage tester is seen that the charging voltage is 5.08V, the current is 0.55A, and the power is 2.794W. In addition, charging treasure can also power this headset.
Second, the walkper W860NB Bluetooth active noise reduction stereo headset dismantling
Remove the earmuff, expose the left and right speaker units of the headset.
The headset hood consists of PU artificial leather, plastic pad, mesh cloth, and the like.
The R mark on the earmuffs, is expected from this position, the earmuffs are slightly transmitted, actually used for breathable and propagation sounds.
The feedback microphone function on the headphone unit is used for noise reduction.
Screw the screw, the circuit board and the internal structure of the left and right headphones are present in front of us. Among them, the right ear is an audio main control circuit, the left ear is a power circuit and a battery.
The charging slab has a MicroSB female seat, a battery seat. The middle screws are screwed away, and this PCB can be removed.
The microphone is fixed to the outer casing.
Protecting the plastic parts of the microphone, there is an upward arrow sign.
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Take the microphone, you can see the metal shielding network.
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The electret microphone exterior has a lap gum sleeve, and covered a sponge.
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This circuit board is 3.5mm audio master, as well as numerous cables, some for power supply, some are connected to microphones, some are connecting speakers, totaling dozens of thousands. Black sound absorbing cotton is used between PCB and the battery.
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Warriar W860NB Bluetooth Active Noise Reduction Stereo Header Codes. Rechargeable Li-Polymer Battery rechargeable lithium-ion battery, specifications 803448, capacity 1500mAh, 5.5WH. Ball suppliers come from VDL VDL.
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The battery is made of 1 lithium-chip, 2 MOS, and multi-sealing. It is fixed to the battery with a nickel belt spot welding.
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So much large and small cables are collected to the key position.
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The Rouge W860NB Bluetooth Active Decano Note Near Field Communication Antenna.
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Headphone speaker unit module on the left.
The speaker magnet is numbered 172.
Positive closeup of board board.
Back side of the circuit board.
TI BQ24040 Linear lithium battery charging chip, output current 1A, suitable for portable equipment. Enter the highest withstand voltage 30V with short-circuit protection and overheating protection.
The circuit board close-up inside the earphones, in which the Bluetooth audio master chip, the noise reduction chip is in it.
The light guide column on the power indicator can make the light be soft and not glare.
This small plate is from left to right, respectively, PFC cable master, light guide column, open / shutdown micro button, and ANC switch.
The other side on the small panel is relatively simple, and the two switch buttons can be seen from this surface, so that the welding is relatively firm.
This location is superimposed by a plurality of circuit boards, and the touch operation portion is connected to the motherboard with the board flexible cable.
The call microphone is fixed, and the hole is reserved on the outer casing.
It is also the close-up of the electret microphone.
After removing the large block of circuit board, the other small circuit board was announced. Touch control unit located on the right earmuff on the headset.
Ti LP2985 Low Noise Low Differential Regulator With Interrupt Function, power supply for touch chips. Output current is 150mA, the highest input voltage 16V, supports overcurrent and overheating protection.
Silk screen A1 AS9059DT number of touch chips.
Two the same size chip in the figure is the noise reduction chip of the W860NB Bluetooth Active Noise Reduction Stereo Headset.
The back side of the right headphones motherboard, which has little to be disconnected, as well as a ceramic antenna.
Ceramic antenna closeup.
Two yellow components on the picture, the industry is called tantalum capacitors, and the specification here is 100μF 6.3V, which functions as a filter.
Ti TLV702 low-pressure drop-line regulator, output current 300mA.
Ti TPA6132A2 Headphone Amplifier, is used to drive the headphone unit, the built-in charge pump conversion negative voltage, the output does not require isolation capacitance, providing a better frequency response, and supports the upper electrical noise suppression.
AS3435 noise reduction chip from AMS Austrian microelectronics, the Snapers W860NB Bluetooth active noise reduction stereo headphones are used.
Two-dimensional code stickers on the Bluetooth master chip. This small PCB industry is called a stamp board. Since the chip on the board is very small, the patch process requires high, usually made into a module, which is easy to assemble.
Warriar W860NB Bluetooth Active Decoction Stereo Headset Bluetooth Master Chip Model is CSR8645, the brand is Qualcomm. Support Qualcomm APTX audio technology in the package, which is also a single cheat of Qualcomm.
Fudan micro FM24C512C memory is used to store Bluetooth configuration information.
Workkeeper W860NB Bluetooth Active Noise Reduce Stereo Headphones Demolition Family Port, just a tone loss of headphones, now there is a big unloading eight, each circuit details, we will show more than dozens of pictures, especially the chip position, Do not let go of every close-up.
Summarize
At present, in the headset noise bowl market, the speeches have been layout, of which W860NB is a new new product of the rambler family. The price is also quite close, the price is less than 900 yuan.
Through our dismantling, this headset is very unsurcited on the circuit. The high-pass CSR8645 master chip is equipped with two AMS AS3435 noise reduction chips to ensure the noise reduction experience of the product, reaching the market mainstream level, built-in TI chip, improve circuit stability, and use it more assured.
In addition, in terms of structural and design, the W860NB Bluetooth active noise reduction three-dimensional headphones mainly calm the business wind, the appearance is atmospheric; the entire headset uses dozens of materials and processes such as PU, electroplating, metal, silk screen, sponge, so that the headphones have A rich visual, tactile level.
Source: 52aduio
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