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Method for detecting failure mechanism of automatic dialing of mobile phone

A technology of automatic dialing and failure mechanism, applied in telephone communication, electrical components, branch office equipment, etc., can solve problems such as lack of unified detection methods for invisible faults, loss of economics and reputation of manufacturers, and manufacturers' reluctance to see them

Inactive Publication Date: 2011-08-03
SHANGHAI FALAB TEST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Mobile phones are very important communication tools in daily life, and their manufacturers and product inventory are very large. If there are quality risks in the production and manufacturing, it may cause great economic and reputation losses to the manufacturers. For example, after sales, users After a period of use, the same model or the same batch of mobile phones will have the same fault on a large scale, which will cause a situation that the manufacturer does not want to see. At present, there is no unified detection method for such invisible faults, and it is impossible to find the fault in the production process. hidden dangers, and then reduce their impact to a minimum to avoid losses. Among the existing invisible faults, one is the failure of certain keys to automatically dial after being used in a humid and hot environment for a period of time. At present, there is no standard method Can accurately and quickly find the source of the fault and determine the responsible party

Method used

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  • Method for detecting failure mechanism of automatic dialing of mobile phone
  • Method for detecting failure mechanism of automatic dialing of mobile phone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The entrusting unit has a batch of mobile phones that have been used for about 3 months after sale in hot and humid areas in Southeast Asia. A large number of the same automatic dialing failures of the three buttons 6 / 7 / 8 have occurred. The fault is that the three buttons 6 / 7 / 8 are not operated In the case of automatic dialing, the value will be displayed on the full screen until the mobile phone is turned off, which will bring huge economic losses to all parties involved in the production and sales of the mobile phone. It is necessary to accurately determine the cause of the failure as soon as possible to clarify the responsibility, and take corresponding technical measures to prevent similar accidents. The faulty mobile phone was inspected, and the above-mentioned fault phenomena did exist.

[0021] Such as figure 1 As shown, the fault principle of the above faulty mobile phone is analyzed, and the specific steps are as follows:

[0022] (1) Baking, bake and dry the ...

Embodiment 2

[0037] Example 2, the rest is the same as Example 1, except that the baking temperature in the step (2) is 60° C., and the baking time is 60 minutes.

Embodiment 3

[0038] Example 3, the rest is the same as Example 1, except that the baking temperature in the step (2) is 90° C., and the baking time is 30 minutes.

[0039] The beneficial effect of adopting this technical solution is: adopting the following steps of the standard specification: baking, failure point location physical isolation, failure point location electrical analysis and metallographic section analysis, the fault point can be found quickly so as to determine the fault responsible party And use this as the basis for technical transformation in production to avoid similar failures from happening again.

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Abstract

The invention discloses a method for detecting a failure mechanism of automatic dialing of a mobile phone, which comprises the following steps specified in the standard: baking, physical isolation of failure point locating, electrical analysis of failure point locating, and microsection analysis. The method can be used for quickly locating the failure point, so as to determine the party responsible for the failure and generate technical innovation references, thereby avoiding reoccurrence of similar failures.

Description

technical field [0001] The invention relates to the field of mobile phone fault detection, in particular to a detection method for the failure mechanism of automatic dialing of mobile phones. Background technique [0002] Mobile phones are very important communication tools in daily life, and their manufacturers and product inventory are very large. If there are quality risks in the production and manufacturing, it may cause great economic and reputation losses to the manufacturers. For example, after sales, users After a period of use, the same model or the same batch of mobile phones will have the same fault on a large scale, which will cause a situation that the manufacturer does not want to see. At present, there is no unified detection method for such invisible faults, and it is impossible to find the fault in the production process. hidden dangers, and then reduce their impact to a minimum to avoid losses. Among the existing invisible faults, one is the failure of cert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/24
Inventor 刘学森
Owner SHANGHAI FALAB TEST
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