Recent content by lancemitrex

Yup. I figured it was long gone. One way or the other. Ha. So, I looked up some P-channel Mosfets on digikey. Just in case that DD-6 pops up or another one pops up that's been hooked up backwards. I'm fairly certain that Q15 ought to be a P-Channel mosfet as a Pass transistor for the switching...

Yes. 78L05 is a 5V voltage regulator. IC6 Seiko S-8520E33MC-BJS, is also a voltage regulator. I'll need to look up a npn transistor in a SOT89 package that has the collector as the middle pin, base on the left and emitter on the right. You might try removing the 78L05 and measuring the voltage...

Just a observation. I think that Q15 should not be a 78L05. It is probably a NPN transistor in a SOT-89 package. The 78L05 in a SOT-89 package has the center lead as the GROUND PIN. So, in the picture, above the external power is input through L3 to the top of the Diode, D3. If the polarity is...