Help needed to identify/test component on mainboard

Nintendo Questions Nintendo Switch
1

Hi there,

Can anyone tell what component is this:

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After cleaning the board from liquid damage it looks like it’s missing a leg. But I don’t know what it is or how to test it properly. I’d guess it’s a LED but never saw it lit on other switchs. Everything I tested on the console looks to be working fine.

2

thats a light sensor

3

https://www.digikey.com/en/products/detail/rohm-semiconductor/bh1603fvc-tr/1950367

Double check me on this, but i do believe it is this part.

1 Like
4

My note said the light sensor part# is BH1730FVC.
And pin1 goes to 3.3v rail. So I guess your bh1603 is wrong (pin3 not vcc but gnd)

2 Likes
5

Thanks guys! Is there a pratical way to test if it’s working or not on my switch?

6

turn on auto adjust backlight, and lower down backlight, then put a flashlight straight on top of the sensor area to see if backlight goes up by itself

7

Thanks! It’s indeed not working. I’ll order some BH1730FVC and try to replace it.

8

perfect, thanks for the update, added to my own parts list for future reference.