Unfortunately, it is difficult to determine a fault location from the images because the cut wire ends are long and bent in one direction.
Regardless, I found a reference in the last description that causes a possible error.
I quote:
"I send the board images with the completed job to TX OpAmps. This is where everything stopped working and the wrong voltage problems have appeared.
As can be seen, the work in the area of ??the power supply is not clean, especially after breaking the original LM78L05 and replacing it with a 7805 "on air" on the underside board. The solders on the u6 and u7 ICs are also not very visible due to an unsuccessful attempt to remove them, but this has not affected the operation of the Softrock RXTX. "
I interpret that the 78L05 was ruined, which you replaced with 7805. The reason for the failure was probably the U6, U7 referred to above, if you soldered them upside down, the stabilizer broke down due to the high current consumption, but U6 and U7 also fault.
You can check this by lifting 5V from U6 pin8 and U7 pin8 from the solder point and then measuring the supply voltage at + 5V.
If OK, the current consumption of either U6 or U7 or both will cause the fault.
To lift the IC foot, place 'Desoldering Wire' on the foot and heat it with a soldering iron to absorb the tin from the foot.
Then with small screwdriver you support the foot from the side and at the same time place the soldering iron on the foot without tin. Due to the hot soldering iron, the IC foot now moves away from the solder joint by pushing the screwdriver.
This is approx. There will be a distance of 1 mm, it does not need to be raised higher.
So there is a reason for the failure of the stabilizer IC, you have not eliminated the cause.
If lifting the IC's pins does not clear the fault, continue searching.
The path of + 5V must be interrupted, similarly one of the consumers that is supplied with 5V must be interrupted.
You wrote that the receiver works, you attached the video, so don't break the receiver's circuit.
Successful error delimitation.
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Gyula HA3HZ
HA3HZ