Trouble desoldering a heatsink

MisterBill2

Joined Jan 23, 2018
27,642
Not to p*ss on anyones parade, but that board pictured has surface mount ceramic capacitors all over it. Those things are a swine for going short cct through bending/flexing the PCB.
OOPS!!! In that case please ignore my advice! It works with through-hole stuff. If you are able to remove those resistors in front of the transistor you may be able to turn the screw. And you might be able to grab the edge of the screw head with some sharp pliers, from above.
 
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