Sure buddy. As you know it was donkey years ago when the rules were different. But I'll try best to recall some of the trainings and their schedules.
Mornings usually we do fitness, and it started at about 7am..like jogging and 15 metres sprints. We also do running up the grand stands of the stadium next door (it's a football stadium!) to build up our leg muscles, especially the knees and stamina. It usually finished about 11.30. After lunch it's rest until 4pm, when we start hitting balls and drills (usually multi balls). Anybody not committed enough will be subjected to punishments at the end of the sessions (about 7pm). Normally it will be walking around the hall in a squatting position or we called it 'duck walk' for a few laps. A real nightmare!
At night will be light drills like serve and returns. Back then, hiding the serve was perfectly legal (and each player had 5 serves instead of now, two) so service and returns were extremely important. Plus the balls were smaller, so their spin were a lot higher than now. Training finished at 10.30pm and lights off by 11.15pm.
Every other day,in the morning after our daily jog, we do weights for the upper body and core. It involves using the bicycle inner tubes to create resistance, in which one end was tied to pole and the other to your wrists. You are required to "act" out your FH and BH as many repetitions as you can in 2 minutes. Bar bell squats were on the menu without fail. Bench press was another one. It increases your FH power since we were taught to hit with a straight arm (not chicken wing). Oh before I forget, each of us got a dumbell (1.5kg) on the 1st day, where we are required to carry (bring), so we may lift with our wrists repeatedly during our free time. (to increase wrist strength and explosiveness).
At 4pm we do more multi ball drills. There was this one fun game where we were told to score a goal with our shots. We had to hit the balls as hard as we can, past the opponents. Each time the opponents fail to EVEN make contact with the balls and the balls flew pass them, then it was considered a goal.
At night we will spend time looking at videos of ourselves training and how we may improve and assessments by our coaches.
Wish I can give you a more detailed account, but it was in the mid 80's..hahaha