Rework Camino Intracranial Pressure Monitor Power Supply PCB Board MUST be tested, especially + 5v voltage, since everyone knows that power failures account for more than 50% of all medical electronic system failures. For precision instruments, whether the + 5v voltage is stable or not is critical to the normal operation of the CPU and the execution of the program.
Therefore, guaranteeing + 5v voltage is necessary to repair medical electronic equipment PCB board. Imported high-end equipment is generally marked with + 5v and other voltage values on the circuit board, especially at some connectors.
Use internal and external adjustable potentiometers as much as possible, but the initial position should be marked, adjustable potentiometers are the cause of many instrument failures.
Due to improper power supply circuit board maintenance and the relatively humid climate in the south, the carbon film surface of the adjustable potentiometer is susceptible to dust and grease, which causes aging and increases the contact resistance of the film to cause failure.
Adjustable potentiometers used on many high-end instruments will generally indicate its role on the circuit board, combined with the phenomenon of failure, find the corresponding potentiometer, and then cooperate with the adjustable knob on the panel to assist adjustment.
However, it should be noted that before adjusting these adjustable potentiometers, be sure to mark them so that they can return to their original state after the adjustment is invalid.
