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Re: USB Device not recognized .... another one #qmx


 

Rick,

That would make a difference. I assume you also don't have 5V VCC nor 3.3V VDD then

But back to the "no USB" :
Looking at the USB connector pins in your picture, I would say at least 2 pins need to be re-soldered.

Having the pin contact the via barrel and soldered to the barrel is fine but those 2 appear to be really centered in the via barrel hole and the pins are quite small (and short). This will vary from USB connector to USB connector since the locator pins have room to move a little during assy.

What I would recommend is use solder flux (flux pen) and carefully touch each pin (maybe use a toothpick) then use a bit of solder. What you want to do is have the surface tension of the solder to the pin/via barrel draw the solder into the via barrel. Use very little solder and check for unwanted shorts between the surface pads.

Only?SOME?of the USB pins are actually used so you might assume it's OK......but it depends on the pin.

73 Kees K5BCQ





73 Kees K5BCQ

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