Fujifilm X-T20 Shutter Issue

[lilfarhad94]

Hi all,

I have a Fujifilm X-T20, and the shutter is not working. The camera seems to think the aperture is stuck and gives me an error message asking me to turn it off and on again (Turn off the camera and turn on again).

I noticed that there are two optical sensors near the shutter. Each sensor has four pins, with two of them connected together, meaning there are only three wires per sensor going to the mainboard. None of these wires are connected to ground.

When measuring the voltages during operation, I found the following values:

- Sensor 1: 3.3V, 2.2V, 0.02V (measured while it was blocked)
- Sensor 2: 3.3V, 0.151V, 0V (sate is unclear because it's inside the body)

It seems like Sensor 2 may be malfunctioning since it shows 0V (not ground), but I'm not sure what the correct voltages should be.

Any advice on what the expected voltages should be for these sensors or how to test them with a mutimeter (resistance and so on)?

Thanks!

PS: I don't know if my question belons here or into the general technical descussion thread.