Re: Need Help with this Circuit Please
There are many possible causes plus extra damage now. Check all transistors and resistors to the right of and including Q224.
Pay particular attention to Q224 because it is usually mounted to the heatsink and can easily be mechanically stressed causing connections to break.
Q224 and surrounding components are for controlling output transistor idle current. A fault in this area usually results in more dead transistors.
Test run it with the bases of the output transistors disconnected or removed completely if they are suspect of being faulty.
There are many possible causes plus extra damage now. Check all transistors and resistors to the right of and including Q224.
Pay particular attention to Q224 because it is usually mounted to the heatsink and can easily be mechanically stressed causing connections to break.
Q224 and surrounding components are for controlling output transistor idle current. A fault in this area usually results in more dead transistors.
Test run it with the bases of the output transistors disconnected or removed completely if they are suspect of being faulty.
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