It looks like you have a problem with bulging electrolytics. Nothing personal!
The big black cylindrical component in the middle of the second picture, an electrolytic capacitor, is visibly bulging at the top, and has actually leaked some electrolyte. The blue one to the left of it is also bulging noticeably. The third picture shows that another smaller black electrolytic is also bulging.
This is a common problem. It happens due to poor ventilation, poor component quality, poor design (underspecified componets), or just age. The capacitors can be replaced, but it's important to get all the information printed on them. Look for any electrolytic that's bulging at the top or bottom. Personally, I would replace all of the capacitors with the same brand name, even if they aren't all bulging, apart from the very large one (or two) that are rated at 150V or more. These are the input capacitors and they aren't subjected to so much stress as the output capacitors.
Don't use the unit until you've replaced those capacitors. Suitable replacements would be any high quality electrolytic, which means a Japanese brand - Rubycon, UCC (United Chemi-con), NCC (Nippon Chemi-Con), Panasonic. That will probably fix the problem.
Post a list of the capacitors you suspect, with ALL markings from them.
Also, add your location to your profile, and tell us who is your closest or preferred supplier for electronic components.