Computer Tomography Controller Board Faulty Diagnotise Methods can be categorized as below:
Whether a controller board needs to be repaired or replaced, you must first determine whether it is faulty. As for how to judge? below methods have been summarized based on experience in actual work:
First of all, Finding by malfunctional detection program:
Large equipment such as computer tomography machines have their own programs that can rehabilitate the approximate cause of the medical instrument circuit board failure, and some circuit board failures, can also be detected by running the detection program.
Second is taking measuring method
The measurement method is to use a multimeter to measure whether the output voltage of each functional block of mainboard or the voltage at each test point is normal. To use this method, you must first be familiar with the computer tomography electronic machine, especially to know how much these voltage values are under normal conditions of the machine.
Without the circuitry scheme, schematic diagram of target PCB Board provided by the manufacturer, it can also be measured and recorded in advance when the computer tomography instrument is newly installed and used, so that it can be used as a reference for future motherboard maintenance.
Especially for the circuit board with test points, after knowing the voltage of each test point, if the circuit board fails, you can measure based on these test points to find the test points where the voltage value deviates from the normal value for further narrow the scope of the fault on the board.
