ic2 16x2 rgb lcd display kit

EL Wire/Tape/Panels, LEDs, pixels and strips, LCDs and TFTs, etc products from Adafruit

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adafruit_support_rick
 
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Re: ic2 16x2 rgb lcd display kit

Post by adafruit_support_rick »

The 18 LCD pins look ok on top. What do they look like on the other side?

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wtfwtfwtf
 
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Re: ic2 16x2 rgb lcd display kit

Post by wtfwtfwtf »

not sure if these are clear enough to see what's going on.
keith

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adafruit_support_rick
 
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Re: ic2 16x2 rgb lcd display kit

Post by adafruit_support_rick »

The LED header pins look like they could use a touch-up. You can see that the solder hasn't flowed over the pad on several them. That could indicate a cold-solder joint, where the blob of solder really isn't making good contact with the pad. Ideally, solder joints should have a concave section, like this:
Image

Reheat all of the LCD solders on the bottom side of the board, making sure to heat the pad. You should see the solder flow across the pad.

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