Your Amiga is reaching the age where capacitors are starting to cause potentially irreparable damage. In addition to possible damage, capacitor replacement can improve image and audio.
Amiga of Rochester uses top quality capacitors (Nichicon, Rubycon, Panasonic). This means you can use your Amiga for years to come. Analog signals are prone to noise caused by inferior capacitors. Quality capacitors provides noise free audio and a clearer video signal.