Looking for troubleshooting advice on device killed by lightning strike
I'm looking for another set of eyes to see if anyone can spot anything wrong with either of these boards.
The pictured boards are from a Logitech G923 Racing wheel that is well out of warranty. While gaming on it, a thunderstorm started, lightning struck nearby and immediately the wheel stopped working. The wheel was plugged into a Belkin surge protector power strip, but it seems like it didn't fully stop the strike from killing the wheel.
Troubleshooting steps I have tried so far:
- Different (known good) outlet and (known good) USB ports were used
- Power brick outputs 23.75V both when unplugged and plugged into the wheel
- Measured a maximum of 6mA current being drawn for a split second after plugging it in, afterwards, 0mA
- Attempted to power using a different 24V/1.75A power supply with no luck
- I do not smell any "magic smoke", nor have I seen any
Diagnostics I have tried so far:
- Both larger capacitors near the 24V input read at or above whats printed on them
- The R033 and R100 resistors do not read as dead shorts
- Voltage is does make it through from the "main" board to the wheel board, and depending if the USB cable is plugged into a computer (reads 4.5V) or not (reads 0.25V)
- Motors run if powered directly
Details on the boards:
- Board pictured in pictures 1-4 is the "main" board in the body of the wheel
- When looking at first picture of it:
- Top right 2pin connector is input 24V power (+ on left)
- Other two 2pin connectors go directly to the motors (+ on top)
- Bottom left connector is input USB
- Bottom middle connector is H-Shifter input
- Bottom right connector is motor encoder
- Top left connector is steering wheel
- Top middle connector is pedals input
- Board pictured in pictures 5-7 are the wheel board
Was really hoping I'd see a clearly exploded SMD or something on the board when I opened it, but I can't see anything wrong. Any troubleshooting/diagnostic advice is welcome. With the warranty being long gone, I'm willing to try pretty much anything to save buying a new wheel setup.