LED display (LED screen): a flat-panel display, composed of small LED module panels; LED display is generally used to display text, image, video, video signal and other information.
Teencher Inspection team consists of professional quality control and international trade experts, each member with extensive inspection experience and very strong sense of service. our inspection can help you to reduce logistics costs, return risk, complaints, compensation and potential brand reputation due to quality problems.
1.Inspection Environment and Requirement
-Requirement for place of inspection:Light from a power of at least 500 Lux.
-Perspective:The products must be tested by every angle.
-Distance of viewing:In doubts, check the products from a distance of 30 cm. If it is not visible, it is no defect. View the items by various angles.2.Visual NonConformities Standard
Visual nonconformities as stated below are typical defects during production and must be handled either by means of suitable measuring or comparison practices. A practical method is to compare defects either against the specification guide or against provided samples.
-Not permitted any sharp point/sharp edge.
-Not permitted infestation of live insect.
-Not permitted blood mark
-Not permitted heavily odor.
-Not permitted crack mark,chipped edge,burr, dent mark,scratch mark etc.
-Not permitted any rust mark.
-Not permitted malfunction,noise etc.
-Not permitted wrong printing,missing printing etc.
-Not permitted unreasonable gap
-Not permitted burn mark,water spot,color stain,oil stain,dirty, impurity mark etc.
3.Field Test & Measurement
-Function check
-Smell check
-Hi-pot test for adaptor
-Earth resistance check
-Power consumption check
-Assembly check
-Color test
-Computer software check
-Product dimension check
-Product weight check
-Barcode readability check
-Power on check
-Power cord pull test
-Power cord length check
-Rub test
-Tape test
-Quantity per carton check
-Carton dimension check
-Carton gross weight check
-Carton drop test