Here is another little 5″ LCD screen I have that has a bad power supply.
One of the circuit board traces was fried, the capacitor and transistor are also bad. Here is how I repaired this circuit that appears to be trash…
I started with replacing the Transistor and adding an additional heat sink.
The heat sink has thermal compound in the center, and super glue drops on the 4 corners to hold it onto the copper.
The solder trace was removed (to prevent shorts) and I added a wire to replace the connection.
I also replaced the Capacitor.
Yay it works!