I am doing test on the AD7746 evaluation board and run into a puzzle. The datasheet says, to test CIN2, which is the second input channel, the capacitive length sensor should be disabled by disconnecting the two 0 Ohm SMD resistors, R1 & R2. I was able to locate R1 and R2, and I marked them in the photo (attached), but I do not know how to disconnect them. they do not look like jumpers.
I chatted with a guy online and was told that R1 and R2 are both small 0201 jumper resistors that would need to be desoldered from the board. They’re not designed or intended for easy-on, easy-off removal.
The thing is that they are too tiny, as small as approximately 2 mm in size, it is very difficulty for a common user to desolder the resistors without damage them, and doing so will make it not returnable if test result does not satisfy user.
Can someone please take a look and give me some suggestions?