Hello,
Okay I have installed a new Mosfet once again on this rig.
The Red like tube looking thing is in the Pic is just Red Heat Shrink protecting the leads from shorting out.
Anyway as soon as I had turned the rig on, "D8" had started to smoke again.
Now prior to the Mosfet install, I could turn the rig on and "D8" would not let the smoke out!
In this order...
I removed C73 which is tied into VR4 and "D8" still was letting the smoke out.
I have also removed C42 which is tied to T2, (Transformer) again smoke from "D8".
Then removed L12 with no results.
Then removed the modified circuit to regulate the voltage for the Mosfet, with no results.
Finally I removed L15 (Choke) and "D8" stopped letting the smoke out.
Now as we know L15 (Choke) is tied into the "Drain" (Middle Leg) of the Mosfet.
Is it possible with the Modified Voltage Circuit that was created, could had shorted out the Mosfet causing a short that led into smoking "D8"?
The voltage regulator consist of a 470, 3.3K ohm resistor and a 1N4148 diode.
I have no real experience with Mosfet period!
Another thing JP36 (jumper) was reinstalled due to it being removed during the RFX75 installation. I was wondering if this would have something to do with this issue.
Again, No experience with Mosfet.
By the way I used a 1N4004 for "D8". I don't see why this would matter.
Thanks in advance!
and Happy Friday!
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