How should Bluetooth products be tested? 1、 Purpose Define the acceptance standard of Bluetooth headset to provide a judgment basis for quality inspection 2、 Inspection environment Temperature and humidity: inspection under natural temperature and humidity Test conditions: no high-power radio interference signal near the test environment. Light intensity: 500 ± 50Lux Inspection distance: about 30cm Angle of view: more than 60 ° 3、 Inspection level MIL-STD-105EG-II Acceptance level (AQL): Cr = 0.15 Ma = 0.65 Mi = 1.5 4、 Inspection basis Standard samples, product specifications 5、 Inspection items Functional inspection and appearance inspection of finished products 6、 Defect classification Cr (critical defect) MA (major defect) Mi (minor defect) 7、 Inspection items and defect classification 1. Basic functional test and defect classification of earphones Inspection items Key points of inspection Defect description Defect classification CR MA MI Turn on and off Headset boot Press the multi-function key for more than 4 seconds, unable to start the machine normally ● Headset shutdown When the headset is on, pressing the multifunction key for more than 4 seconds will not shut down ● Headset pairing Enter pairing state Press and hold the multifunction key to enter the headset pairing status ● Headset pairing Headset cannot be paired with Bluetooth device in pairing mode ● Headset function Answer and end calls Earphone can't answer the goods end call normally ● Call function The headset has no voice on its own or the other side during the call ● Refuse to answer phone calls When calling, press and hold the answer key for more than 2 seconds, and the call cannot be rejected ● modulation Press "volume +" or "volume" - "to control the volume of the headset ● Call to cell Press and hold the multi-function key for about 2 seconds during a call, and it cannot be converted ● Call headset Press and hold the multi-function key for about 2 seconds during a call, and it cannot be converted ● mic mute Double click the multi-function key during a call cannot be muted ● No tone or error During normal operation, no prompt tone can be heard in the earpiece or it is inconsistent with the description in the instruction manual ● Key function Any one or more buttons of earphone have no function and poor sensitivity ● Indicator light The indicator light of the headset is not on, too bright, too dark. There is obvious difference in the brightness of the indicator light or the color is reversed ● Redial function The redial function cannot be realized by pressing the multi-function key twice in succession ● Headset performance Connection stability After the headset is connected to the Bluetooth device, when the phone comes within 0.5m, the Bluetooth will automatically disconnect ● Connection distance The distance between headset and Bluetooth device is less than 5m ● Compatibility Headset can't match different Bluetooth products of v2.0 ● Headphone playing sound quality The earphone has obvious noise, echo and broken sound for a long time ● Earphone heating Under normal use of earphones, the body has obvious fever within 10 minutes ● Charging function Charging function The device conforming to the voltage output input cannot charge the headset ● Charging time is too long The red light is still on when the charging time is more than 2.5 hours ● Standby or talk time is too short When the headset is fully charged, the standby cargo talk time is less than 90% of the time indicated in the manual ● Charging and heating The earphone body is obviously hot after charging for 10 minutes ● 2. Appearance inspection of earphone Inspection items Defect description Defect classification CR MA MI colour There is obvious color difference between various parts of the body and the sample ● There is color difference between different parts of the body ● Spoils The visible parts of the machine body, accessories and packaging are dirty ● Be damaged Any part of the product is damaged ● Sharp edge and burr There are sharp edges and burrs on the edge of the accessible parts of the product ● The visible parts of the product are covered with sharp edges and burrs ● Nameplate The size, shape and color do not match the template ● gloss The luster of each part of the body is obviously different from that of the sample ● Color spot, color spot, bump spot impurity The total number of color spots, color spots, impurities and concave convex spots in each part of the body shall not exceed three on the same surface, and the diameter shall not be more than 0.2mm ● Scratch All parts of the body shall not be scratched ● shrink Parts of the machine body shall not shrink ● Waterline The color part of the body can not be touched by hand ● Fuel injection Uneven fuel injection of engine block ● Poor adhesion ● Poor wear test ● Silk screen printing The font is fuzzy and the position is skewed ● Content error ● Flying oil cargo shadow ● Broken or missing stroke ● Insufficient adhesion ● Crevice The gap between silica gel and plastic is greater than 0.2mm ● Key switch Press the switch in place with normal force, but it has no effect ● Switch does not move ● The switch is not smoothly pressed and has a sense of obstruction ● The switch is tight and cannot be reset after pressing ● Loose switch ● Abnormal sound when the switch is pressed ● Color box There is obvious color difference between the color and the sample ● The printing or specification does not conform to the sample ● Material inconsistent ● Color box damage ● Label Blurred ● Missing posts ● The label is not pasted well, not flat, not firm, cocked up and pasted reversely ● Instructions Printing errors ● Be damaged ● Dirty ● Blurring of printing ●quality inspection services quality control in china china quality inspection inspection company inspection service ![]() |
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