I would like to share my thoughts and request expert guidance on potential root causes for the issues I encountered. As a beginner, I appreciate any discounts given and welcome corrections to any misconceptions in my analysis. Thank you for your assistance and expertise in evaluating my FPV journey.
After my first flight, I encountered a problem where the Caddx VTX stopped working, specifically, the DC-DC VTX chip got damaged.
Fortunately, Caddx was able to assist me and replaced the VTX. However, while reinstalling the VTX on the Explorer, I discovered that the Caddx VTX was connected to the ESC with the power (red wire) wired to the +V bat. You previously mentioned that it should have been connected to the FC +10V.
Additionally, during this unfortunate situation, I did not initially check the other drone components. Only after the VTX repair did I realize that one of the motors (ch4) is not spinning.
Here are the steps I took to diagnose the motor issue:
1. I assume that the ESC is functioning properly as it produces the expected beeps.
2. I can see some DSHOT (PWM) signals on all 3 motor pins on the ESC.
3. However, there is no reaction or vibration from the motor.
4. I checked the resistance of the detached motor, and it measures 4.5 Megaohms, 5.1 Megaohms, and 7 Megaohms.
Furthermore, I noticed unusual markings on the windings of this motor (see attached pictures), which are not present on the other three motors.
Based on these observations, I believe that:
1. The motor may have become damaged during my first flight.
2. The direct wiring of the VTX to the ESC (as it was factory-wired) may have caused the VTX (Avatar) failure.
3. Profit!
After my first flight, I encountered a problem where the Caddx VTX stopped working, specifically, the DC-DC VTX chip got damaged.
Fortunately, Caddx was able to assist me and replaced the VTX. However, while reinstalling the VTX on the Explorer, I discovered that the Caddx VTX was connected to the ESC with the power (red wire) wired to the +V bat. You previously mentioned that it should have been connected to the FC +10V.
Additionally, during this unfortunate situation, I did not initially check the other drone components. Only after the VTX repair did I realize that one of the motors (ch4) is not spinning.
Here are the steps I took to diagnose the motor issue:
1. I assume that the ESC is functioning properly as it produces the expected beeps.
2. I can see some DSHOT (PWM) signals on all 3 motor pins on the ESC.
3. However, there is no reaction or vibration from the motor.
4. I checked the resistance of the detached motor, and it measures 4.5 Megaohms, 5.1 Megaohms, and 7 Megaohms.
Furthermore, I noticed unusual markings on the windings of this motor (see attached pictures), which are not present on the other three motors.
Based on these observations, I believe that:
1. The motor may have become damaged during my first flight.
2. The direct wiring of the VTX to the ESC (as it was factory-wired) may have caused the VTX (Avatar) failure.
3. Profit!
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