Troubleshooting a Cave SH3 PCb

Luddite

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My Pink Sweets board seems to work intermittently. The board looks really clean except for this one point in the picture. Can anyone tell by the picture what is going on?
I believe there was one of those tiny caps there as I found a loose one in the box when I got it. But there is no white box around it as there is for all the other caps as in the top picture.

I tested the large piece of solder in the bottom picture and it goes to ground.
Any ideas of what to try or who can fix this?

Thanks a bunch!


img8871n.jpg

img8873m.jpg
 
Looking at the close view picture, don´t seems to be affected by the glue/resin or whatever it is, anyway you could try to clean it up with alcohol and a brush, a toothbrush actually would be better if it doesn´t go out easily. I think the problem should come from another cause. Perhaps would be faulty solder joints...
 
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