Hi! I'm making this post as short as possible (no pun intended!)
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Readings :
J3 - J5: 45.61V
J4 - J6: 23.98 (OK)
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R6 is smoking. It smells like burnt toasts 14V is going through R6
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Q2 is 0.70 from B to E
Q2 is not O.L (0.55v) in reverse polarity
The Q2 PCB screw nearest to the front is shorted with B & E
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Q4 is 0.74V on the diode test mode. (between base & emitter)
Many transistors are 0.70 ish between base & emitter)
Q5 - Q8 - Q9 - Q10 - Q12 - Q13 - transistors are not O.L when polarity is switched between B&E / B&C
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I suspect bad transistors and bad soldering
Here's my checklist : - Verify solder joints
- Verify if Q2 heatsink/pads are causing short, if-else replace (seen in forum)
- Replace bad transistors
Is there something else I should be looking for?
Any clue/hint would be greatly appreciated
Cheers!