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I only see 7ohm series resistors that go from the data wires to the PHISON USB controller. I'm assuming the pullups are internal? Also I've checked the components on the bottom... they seem to have connections! I agree that a track might be cracked on an internal layer, it's proven really hard...
The data+ and data- pads had come unglued from the PCB, so I soldered them back on. But the drive doesn't work. I've checked that all IC's get ground connection. The power is a little more complicated - it goes directly to a half k-Ohm resistor or such and then to the other chips. There's either...
There are many instances where hobby projects need the equivalent of a wall adapter. And the hobbyist would rather spend time on the main project than building a heavy adapter with a transformer and such! or a complex switching converter!
Is there an IC that:
1> Converts AC (110V and 220V) to...
I'm trying to get HSPICE to optimize a model to measured characteristics, and when I give the parameter list to optimize, in the .lis file it says:
** warning - opt1 not a valid Monte Carlodistribution,parameter will default to the nominal value.
more than once, one for every...
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