Complex sentence: On the electronics side I learned TV and Video servicing just as the bottom was totally starting to fall out of the market, later I relearned core electronics in more detail, digital electronics, and basic computer engineering.
Split into simpler sentences: On the electronics side I learned TV and Video servicing just as the bottom was totally starting to fall out of the market. Later I relearned core electronics in more detail, basic digital electronics, and basic computer engineering.