Hi Jhredman
the A-Go-Go is an rather old pin - this is not bad - but means DANGER !!! Maybe a preowner has mounted an 110VAC main power switch - maybe You have the original pin NOT having such a switch.
Whenever You "just look" in the pin or when You work in the pin not needing electricity: UNPLUG the 110VAC power cord. ONLY when You want to do a test and need electricity - then of course You must plug-in. NEVER touch with Your fingers metal stuff in the pin !!! If it comes to "want to actuate / activate a certain relay": USE a wooden stick (or made of plastic) so You do not come in contact with electricity (as wood / plastic are insulators).
Look at JPG-1: "marked violet": You press the left flipper button - You close a Switch that handles 110VAC !, also the Coin-Chutes (how many people fumble on the Coin-Chutes because the do not have a coin to throw-in --- NEVER TOUCH the Coin-Chutes !!!
Some Relays (Coils) are operated by 110 VAC, Switches on relays handle 110 VAC, Adjustment Switches handle 110VAC --- the A-Go-Go IS DANGEROUS to work at.
As long as You press the left flipper button(see JPG-1: encircled green): You have lights, good. BUT the so-called Lock-Relay should pull-in and stay pulling forever and so the "Switch mounted on Lock-Relay (encircled blue)" should be closed forever. It does not (in Your pin) - so there is an fault.
Another fault - the blowing 110VAC-fuse and the sparks on "Cogs on Score-Motor" --- I do not understand the description of "Cogs" - look at the second JPG (I have taken the picture from ipdb): "green dot" is the "real motor", "blue dot" are the Nylon-Wheels - when the Unit turns the Nylon-Wheels actuate switches mounted on top of the Unit, "violet dot" is the so-called "Kickoff-Switch" (((we will come to this switch - for now I ask You to ALWAYS unplug the 110VAC power cord, Kickoff-Switch MUST be closed))), "red dot" is the "Score-Motor Service Jack" - in Your pin it may be a "Switch to turn - having two positions" (?). Does a wire run from "red dot" to the "real motor" ? HAVE THE 110VAC power cord UNPLUGGED - change (at red dot) the male plug into the socket "NO wire is soldered-on" - respectively: Turn the Adj-Switch so there is NO connection made. Look at the third JPG - it is from the ipdb-schematics - on the bottom is the (green dot) "real motor" --- then the FIRST Nylon Wheel is called "SCM-Ind, Index-Wheel". Look and maybe turn clockwise the Nylon-Wheels so "SCM-Ind" is "as shown in third JPG".
Look on top of fourth JPG - (I have taken the drawing from an ipdb-BALLY-Manual) - the "Game-Over-(Interlock-type)-Relay. Locate it in Your pin (usually near the transformer) - press the "TRIP-Coil Armature" (in the JPG press leftbound) - You manually made "Game-Over" - Williams want the Game-Over-Relay to be in "state Game-Over" FOR then to start a new game.
Have some spare fuses --- NOW plug-in the 110VAC power cord - then press the left flipper-button - what happens ? Fuse blows ? Sparks ? (please make a good description WHERE the sparks are) I HOPE for: Fuse does not blow --- and the Lights stay on.
Look at the fourth JPG - You manually made the Game-Over-Relay TRIP - so (encircled green stuff) the LOCK-Relay should pull-in and stay pulling. (((I assume You have a problem (encircled orange) --- in a running pin: If the Game-Over-Relay happens to be NOT TRIPPED (means it is latched): The "encircled orange switch" should make the Game-Over-Relay TRIP --- this does not work in Your pin, we will look-at this later --- the MAIN PROBLEM is "fuse blowing ?" - I want to find out "where and why", greetings Rolf
aGo-Go-Work-01 (resized).jpg
aGo-Go-Work-02-ipdb-image-26 (resized).jpg
aGo-Go-Work-03 (resized).jpg
aGo-Go-Work-04 (resized).jpg