Hi all,
As I mentioned the other day in another post my SO is giving me some grief. It will not complete start up sequence randomly and seems related to 100 and 1000 relays getting stuck "on". I am an EM novice and have a schematic, I also tried to find Steve Furys YouTube video showing the start up sequence for SM but could not find it.

To recap, this is a game that sat for years and when I bought it on the cheap, it had many blown fuses in the bottom of the cab. This is my second EM. First thing I did was check and replace all fuses to correct amperage. I then disassembled and cleaned the score reels, match unit, credit stepper and ball count unit, all in the backbox. The bonus unit and other stepper under playfield manually work ok so I left them for now ...will get to them later for cleaning. The game is set on coins and does advance and decrease credits.

The main problem is this: after staring a new game when successfully completing that sequence, when the first 100 points is scored right away, it does not advance the score reel but yet the chime goes off and then locks the chime coil on and 100 point relay. I tried advancing the 10 point relay manually up and this way advances the 10 reel but then does not kick over from 90 to advance to 100 reel but still locks on the 100 chime!

If you find a 1000 point target on the pf again being first score after game started, it too will lock on the 1000 chime, and not activate the score reel to advance it.

I'm suspecting I assembled the score reels incorrectly. So, I hear the chime coil buzzing away locked on and turn the machine off. Turn back on again and try and start a new game but then reels do not reset and score motor runs continuously. But! Let it sit for days and presto...no problem starting a new game!

I've tried troubleshooting this problem for awhile and just chasing my tail. If you could weigh in with your expertise to help me get a game going through to completion, we all would be very happy.

Also, there is still one aluminum coil sleeve in the back box on a steeper I reused, and the play field steppers coil still all are aluminum. I would like to replace them all (the whole machine) with new plastic ones and any recommendations to buy a kit would be great.

Thanks for your advice CJ
I did learn that there is a delay of sorts needed when manually using the score relay to advance score reels. Good to know. So now I can step up by 10's to 90 then over to 0 but no activation of the 100 score except the locked on 100 chime coil. When I try them same procedure on manually activating the 100 or 1000 relays they instantly lock on with no score to the reels. All score reel coils look good. In fact all coils look good in the whole game (unfortunately, no obvious culprit).
I shut the game off pretty much right away after the locked chime coil syndrome...

Soon...then
When I manually advanced the player 1 score reels on the 100 and 1000 reels to like 3500 and then try a game reset, the game cannot complete a new game start sequence and score motor runs and reels sort of 1/2 reset...if that makes any sense. Pretty sure this is the root of why PO,s gave up on this game and also may explain the bunch of blown fuses in the bottom of the cab, but then wouldn't the trouble / coil show up as fried?
Stumped...

Thanks again CJ. I will try your tips tomorrow I hope, but right now the machine is not completing a reset for a new game. The half reset score reels (they move to zero but stop before they reach 0) are still the same as when I posted earlier this act. I had 3500 on player 1 that I manually stepped on the reels. Locked on a relay (1000) tried a reset then the reels made it to the current 8000 and now score motor just spins. Turn machine off,try a reset again, nothing, just score motor running and it does take away a credit. Embarrassingly I don't know how to start a 2 player game, tried to push the start button twice but not sure if anything different given the issues at hand.

Obviously chasing several issues here... Will look closely at score reels tomorrow. Thanks