Hi all,
I've had a FV-1 built with the exception of the 3.3 volt regulator (can't find them anywhere locally).
I figured that I should be able to get 2 LEDs and a resistor to give me 3.3V and after breadboarding it - I had what I thought was a voltage reg.
I hooked it up and the 3.3voltage dropped to 0.8V, I took off the 3.3v regulated voltage and even without any voltage apart from the main 9V and earth connected I have 0.49V on what I would expect would be an 0 voltage trace.
I think something's fishy with my voltages and was hoping someone would be kind enough to measure some voltages around the place to help me debug.
Currently I have:
On the FETs - G 2.29V (seems too low)
S 5.21V
D 9.00V
On the Input to the FV-1 0.99V (Could be a reason that I'm getting 0.49V - seems about half of the voltage on the input).
I'm worried that I fried the chip.
If anyone has any tips on how to figure out if my chips blown that would be handy too.
Cheers,
Stu