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tooth_dr

How to clean sensor pins

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One side of the sensor has some corrosion. It’s causing a short.

Any suggestions for remedial action?

 

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How do you know its causing a short ??   An old DRY toothbrush, very lightly brushed in one direction only, if possible with a vacuum sucking off any debris....

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As said old toothbrush ( never throw them away, you never know when they'll come in handy ) and a squirt of contact cleaner.

Dave

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If its a bit stubborn , id probaby go (very carefully) with a cotton bud dipped in IPA first (then a toothbrush).

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1 hour ago, Dr_Ju_ju said:

How do you know its causing a short ??

I’m getting an almost fully bright image and according to QHY this is consistent with conduction across pins, most likely related to moisture.  Want to tidy this up in case it’s contributing to the problem  

 

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Should I seal around the pins with something now?

 

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From what I have read you need  "Conformal coating" to protect the connections when in situations similar to yours. But I may not be 100% as your a dealing with sensor so care is to be taken

https://en.wikipedia.org/wiki/Conformal_coating

https://uk.farnell.com/electrolube/efsc15ml/conformal-silicone-coating/dp/1616573?ost=efsc15

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1 hour ago, fozzybear said:

From what I have read you need  "Conformal coating" to protect the connections when in situations similar to yours. But I may not be 100% as your a dealing with sensor so care is to be taken

https://en.wikipedia.org/wiki/Conformal_coating

https://uk.farnell.com/electrolube/efsc15ml/conformal-silicone-coating/dp/1616573?ost=efsc15

Thanks Andy, that looks the ticket.

I'm also looking to replace the little dessicant pack that was stuck inside it.  Its a very thin strip, not the usual beads in a porous bag.

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4 hours ago, david_taurus83 said:

How did you clean them Adam? I would have definitely broke something!

I followed the advice above and used a combination of a toothbrush, cotton buds - dust free ones that came in a photograph cleaning kit - and a cocktail stick, with some alcohol lens cleaner.  These arent fragile pins ( having said that I havent tried the camera again to see if it's working yet! )

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