Industrial tablet common fault judgment method

industrial tablet computers are widely used, to industry has brought a lot of help, in the process of daily use, industrial tablets also can appear some common fault, how these common fault judgment le? Smart technology detailed answer for everyone.

industrial tablet common fault judgment method are:

1, the interpolation method: pull pull interpolation is ruled out one of the most commonly used French industrial tablet computer fault. Specific operation is defective industrial tablet computer shutdown after pull out a piece of card to boot, if the fault is still, the back board, repeat the above steps. Once pulled out a piece of board disappear after fault, fault point is on the board. This method has the advantage that can quickly find out the fault point, the disadvantage is that for some faults such as display character does not normal, it cannot be used. Common example is a fault memory block.

2, tapping method: industrial tablet stand or fall of running could be virtual welding or poor contact or causes such as metal oxidation resistance increases, for this case can be check by tapping method. Better pin no welding, for example, some components, sometimes can contact, sometimes not alarming, cause industrial tablets. By hitting board, after thoroughly poor contact, easily found in a check again.

3, replacement method, substitution method is also exclude industrial tablet failure is one of the commonly used method. In can't use 'pull interpolation to find fault,' substitution method can be used to troubleshoot. This method is to use a good board for suspicious board, if the fault disappear, show the original plug-in card do have problems, the advantage of this method is convenient and reliable, especially for large scale integrated circuit chip; The disadvantage is that the average user is difficult to have more spare parts, so in PLC controller maintenance department is often use this method.

4, direct observation: with fingerprint, see, nose to smell, listening to the sounds, such as methods for auxiliary examination, general component fever does not exceed the normal temperature of 40 ℃ to 50 ℃, feels a little finger temperature, large component touch to a little hot, but not hot. If hot finger mold components, degree of internal short circuit or component might not cooling, heating, the component shall be replaced or change the radiator. For PCB, sometimes look carefully to see any wire, solder pieces, sundry and virtual welding, etc. Focus such as colour, cracks and component handwriting color yellow, should replace the component. A chip burn out within the general machine will emit a bad smell, at this time should be checked immediately shut down, should not add electricity use. Ear to hear the general has no sound, especially the drive should listen carefully. If you listen to different from normal voice should be immediately repair. Drive was started, for example, if there is a crash, suggests not to zero.

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