Try and hit down one target at a time to make sure each targets switches are registering .
If not the game won't reset the targets unless it knows all 5 targets have registered.

Yup that's the first step. Coil fires, so that works, so you gotta think it's not getting the information it needs to tell it to reset them. You probably hit a couple at a time and wouldn't notice if one isn;t working.

Couple of things to note about Sys3 drops.

In coil test, coils do not fire like in the game. As a result, some coils may not fully reset drops/VUK etc in coil test but that's not the point. If the coil functions in test then it's good.

The five bank in SA is a memory bank. That means it has both a reset coil and individual trip coils for each drop. This way it can reset the bank to where it was from player to player.

I have to go back and look at the SA rules but at the start of a game, it should reset the 5 bank. It may then trip one or more of the drops - I don't remember. Someone who has the game may know. If it's resetting but the drops are not staying up, there's a problem with the mechanism. In solenoid test, check to see that each trip coil fires (Sol 7-11).

viperrwk

I think the suggestion is to put the game in switch test and see if the drops register. If they don't then the machine doesn't know the switches are down and will then not reset them. Couple of things you need to do. First run the Switch Matrix Test. From the manual:

The first part of this test will report any switch(s) which have not been operated in the course of the last 15 games (INOPERATIVE SWITCHES). The second part of the test will report any switch(s) which are stuck closed. If no switches are closed when this test is started, the message "ALL
SWITCHES OPEN" will be displayed. If any switches are closed, the closed switch(s) name and number will continuously be displayed. The strobe number and the return number are combined to form the switch number (strobe,return). The Credit button can be used to restart this test.

You want to see if the switches for the drops are reported as inoperative switches, specifically switches 15, 25, 35, 26 & 36 (the switch numbers on the drops from left to right as you are facing them). If any are down, you then want to see if those are reported as closed switches. If they are not, they you have a problem with the switches in the bank not recognizing the down drop and you will likely need to remove/clean/rebuild/replace parts.

I'm not sure what you are saying here. If the drops are up and you are in solenoid test and you test Sol11 (right-most drop as you are facing it), that drop should go down. It should not go back up until you test Sol2 (5 bank reset). If it is immediately going back up then you have a logic problem. I will have to double check this. Do you know which version of the game ROM you are running? You can determine this when you turn on the machine - it will say the name of the game, then "743/?" where the question mark is a number. That number will tell you the version of the game ROM installed.

viperrwk

The short answer - you have to pull and rebuild that entire assembly.

The long answer: yes, as you rightly surmise, the springs in that photo need replacing.
The drops that are registering when they are up should not so there is a switch problem (dirty/bent contacts) that needs to be addressed.
The single trip solenoid working tells me you have a wiring problem with the drops. The power comes in to Sol11 and is chained from there to the other trip solenoids. Seems like that connection from Sol11 to the other trip coils is bad.

There is a 2 wire connector and a 6 wire connector for the drop bank. You should be able to find them by following the two wires from the reset coil. The grey/grey/black wire goes to the 2 wire connector and the other goes to the 6 wire. Both connectors need to be unplugged then you should be able to unscrew it from the playfield, remove the whole assembly and work on it on the bench.

viperrwk