Question 105Electricity/Electronics - 1st Asst/Chief70% to pass
Using the trouble analysis chart and faults table provided in the illustration, if the gyrocompass was malfunctioning, but no fault codes are present on the display unit, what is most likely the problem if the DC/DC converter LED status indicator is functioning properly, but the CPU LED status indicator is not blinking? Illustration EL-0195
AI Explanation
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.
Related Questions
#103 According to the liquid crystal data display for the depth sounder shown in the illustration, what is the instantaneous depth currently being displayed? Illustration EL-0186 #104 In viewing the liquid crystal display for the illustrated depth sounder data display unit, what should be done if the graphic display of the ocean bottom is no longer visible on the screen? Illustration EL-0186 #106 As shown in the illustrated adaptive digital steering control system functional block diagram and listed system interface signals table, what would the rudder order signal output voltage to the rudder servo amplifier be for a rudder order of 20 degrees left rudder? Assume that left rudder order signals are negative in polarity and that right rudder order signals are positive in polarity. Illustration EL-0191 #107 Upon failure of the normal power supply, how is the emergency generator placed on the line to feed power to the emergency bus? #108 In preparation for paralleling generators, if the electric plant condition is as shown by graph "A", what would be the rotational status of the synchronizing lamps as shown in circuit "B"? Illustration EL-0002