How should I troubleshoot embedded motherboards?

 Embedded motherboard is embedded in the device to do control, data processing using the CPU board. Simply put is the brain of the device, embedded into the device will have a relatively strict requirements on the volume, power consumption, so that embedded devices will usually have size, high integration, low power consumption and other characteristics. Regardless of any equipment in the use of the process of inevitable failure. Therefore, how to troubleshoot the embedded motherboard problem?

Firstly, checking the power supply and the components

The role of the power supply is very important, insufficient power, the output voltage and current abnormalities will cause a variety of failures. Therefore, the power supply problem should be ruled out first, and then consider other components.

Secondly, checking the external equipment first, then the main unit

Faults caused by external devices are usually easier to find and eliminate. You can check the various connections of external devices and their own working conditions according to the system error message first; after excluding the causes of external devices, then consider the host computer.

Thirdly, checking the software and the hardware

Embedded motherboard failure, first to exclude the software reasons, and then consider the hardware reasons.

Fourthly, considering the simple failure and the complex failure

Hardware products are not perishable, so when encountering hardware failure, should start from the simplest reasons to check, for example, to determine whether the connection of various cables is normal, a variety of plug-in cards are poor contact, etc.. If the fault persists after inspection, then more complex faults in the mechanical part of the circuit or component can be considered.

When you encounter a fault problem, you need to investigate it step by step in order to find the problem and choose the right solution.