I don't know what HS stands for, but I assume the resistor was discolored due to overheating.
I wouldn't recommend using the DIP leaded caps, as you will probably end up ruining the circuit board traces. ?Remove the existing caps from the circuit to see if that clears the short, or if there are other problems. ?It is OK to power up the radio without the C501 & C502 caps for testing, since they only decouple noise on the 5VDC power bus. ?But the display circuits may be a little "glitchy" until good caps are installed.
Then order the correct parts and install them. ?
Steve, W3AHL
Steve W3AHL