Question 105Electricity & Electronics - 1st Asst/Chief

The correct answer is D) The CPU assembly is malfunctioning. The explanation is as follows: If the gyrocompass is malfunctioning but no fault codes are present, and the DC/DC converter LED is functioning properly but the CPU LED is not blinking, this indicates an issue with the CPU assembly. The CPU is the central processing unit that controls the overall operation of the gyrocompass system. If the CPU is not functioning correctly, it would cause the gyrocompass to malfunction without triggering any fault codes. The other options, such as a problem with the AC/DC power supply or lack of ship's power, can be ruled out because the DC/DC converter LED is working correctly, indicating the power supply is functioning as expected.