Fuses read zero ohms when good. Much more then zero ohms, ie infinity, when bad. Fuse reading should be about the same thing you see when on the low Ohms scale and your test leads are shorted, for example.
The worse problem in that picture is that the gate clamp Zener diode has been deliberately shorted by a jumper. Which means everything in the Gate circuit needs replaced.
You need at least the .1 uF 50V capacitor, the 1N4744A Zener, The 1N914A Diode and possibly the Power FETs.
We need to see why you don't have the low voltage first. With that short in place you have no drive to the FET gates, so it wont have ANY anode current, which is one of the reasons its not starting.
This is not going to be a quick fix. In fact its a mess. Have patience.
Steve
Last edited by mixedgas; 03-22-2014 at 13:50.
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