Sprinkler system help

Ok.  I live on 1/3 acre and I can't get my sprinkler system to operate.  I changed the auto systems (the people who did construction prior to us buying the house were gracious enough to cut the power cord right off of the old ones) and when I operate the system, you can hear the valves/pumps whatever they are trying to run but there is no water coming out.  I have tried turning the shut off knob by the sprinklers either way and nothing is happening.  Long story short, most of the heads are broken and I would like to change it to a drip system anyway instead of the lawn sprinklers that are on there now.  
Where the heck do I start?  Any idea of a good book that I can buy that can walk me through it a little bit?  A website or youtube channel?  
I have fixed sprinkler heads and sprinkler lines before so I do have some basic knowledge but I am struggling to find info on what to do for replacing the whole system.

I would make a list of possible points of failure:
Input
Timer
Pump
Pipe
Endpoint.

If you "unscrew" the sprinkler system and turn on the "pipe" do you have water flowing?
If you remove the "timer" and just connect the pump directly does the sprinkler work?
If you drop in a spare pump does it start working?
If you "cut" the pipe right after the pump but before the sprinkler endpoint do you have water flowing?
If you remove the sprinkler "head/endpoint" does it work?

It is entirely possible that you will have just rip out and redo the entire system.
How much will it cost you to buy a brand new
1) Timer
2) Pump
3) Pipe
4) Sprinkler Head

I found this random DIY sprinkler youtube video, let me know if it is any good
https://www.youtube.com/watch?v=KyL-UrFKlzQ