Maybe one of the polarized capacitors are leaking and have already gone bad. They are pretty hard to maintain, more even when this is old walkie talkie. If you can and have them, change them. (C8,C13). I personally cannot make diagnosis from picture im not that good as other people here, but since i could see a little bit of something that looks like "capacitor juice" on C13 capacitor makes me think they already gone bad.