Wow I didn't even know this pin was still in existence. Great find!

Hi Oldiron58
Your descrition of the problem(s) is not so good "everything works but the Game-Over-light does not dissapear, but the start of a new game does not work" - hmmm.

When I have problems to start a game: I like to manually put the pin in state "the former game was a 1-Player game, all balls have been played, the Score-Reels of Player-1 have some points on the counters, player-2-4 have no points, the Game-Over-Relay came to "Game-Over"".
If I want to be accurate / exact: I put the Coin-Unit to "1 player - lowest position", the Player-Unit to "1 player - lowest position", the Ball Count Unit to "3 or to 5 - depending on how the adjustment Jack is set (3-3, 5-5)" - well, mostly I am lazy and forget about Coin-Unit, Player-Unit, Ball-Count-Unit ...

ipdb.org does not have many schemas: http://www.ipdb.org/search.pl?gtype=EM&mfgid=262&yr=1960-90&sortby=date&searchtype=advanced -> want to look at "Schema Space Race" ?

Here: http://www.tecnopinball.org/doc_biblioteca.php they have "Check Mate" and they have "BangBang" - "ipdb: Bang!Bang!". "BangBang" is the 2-Player-Version of Your pin.
If Your problem(s) are related to / with "Player-Unit - Points are not given to the Score-Reels": It might be better to look in the schema of a 4-Player-Game.

If the problem(s) are "basic start does not work": The schema "BangBang" is useful (hoping: the BangBang is wired the same as the fiery-30).

Want to put Your pin in state "former play was a regular play and has ended normal" - then start a game and report the VERY FIRST fault ?

The schema BangBang tells me: "Game-Over-Relay" is in the "Control Banck (Relay-Bank)" - it has switches: One of type-A, 3 of type-B, one of type-C (1-Normally-Open, 3-Normally-Closed, 1-make-and-Brake).
Please report (very first fault) and we will go through the schemas. Greetings Rolf

P.S.: I am interested in Your Shangri-La (I own one, my first love in 1969/70) - here in a Gay 90's: http://www.ipdb.org/showpic.pl?id=989&picno=53308 they show the "available on request Extraball Relay mounted", Shangri-La, here http://www.ipdb.org/showpic.pl?id=2110&picno=64764 and http://www.ipdb.org/showpic.pl?id=2110&picno=64797 : that Relay is not installed - DO YOU HAVE SUCH A PRECIOUS EXTRABALL RELAY - Please report.

no sorry I don't know them, I don't work on machines I just play them. The nitro elves fix my machines when needed

Hi Oldiron58
this topic and the posts are about "The Fiery 30's". I refer to my post-4: If the problem is "a feature (on the playfield) is not working properly" -> Schema BangBang.
If the problem is "the startup / reset does not work properly" -> a schema of a 4-Player pin (4-Player pins have "Coin Unit / Player Unit" - 2-Player (1-Player) pins are wired in a different way -> schema "Check Mate" or "Space Race".

"Pictures of the Relays and Units in the Fiery 30's" ? Do not "overdo". It is very seldom that I see a fault in a picture, they are nice to look at - BUT: I like "looking for a problem by looking at a schema (Check Mate or BangBang) and I see in the schema: "A wire runs from "Normally-Open-Switch on Relay-QV to the Coil of Relay-TF" -> I then write: Look for the colour of the wire on "Coil of Relay-TF" - remember that color -> Look at the Switches on Relay-QV for the SAME color ->investigate at the "Switch having the same wire (color)".

About "Shangri-La": Great, You too love that pin. I donated the last two pictures and the partial manual: http://www.ipdb.org/showpic.pl?id=2110&picno=64764 .

We had a chat in: https://pinside.com/pinball/forum/topic/anyone-know-the-first-williams-game-to-include-a-manual -> posts-9 to -15.
At the end of post-9: Want to connect "R-3" and "L-4" and see the "Extraball Lights lightet" ?
Look at Your picture in Your post-5 -> Jumper-Jack, the Left side, Top-Down: L1, L2, L3, L4.
On the Right side, Top-Down: R1, R2, R3, R4. Simply jumper R-3 <-> L4 and watch the lights on the playfield and on the Backglass: http://www.ipdb.org/showpic.pl?id=2110&picno=20171&zoom=1 (hard to see, to the right of the Ladys hat.
OF COURSE: That jumpering (R-3 <-> L4) ONLY turns on the lights ...

Write about the problems of "The Fiery 30's" - maybe write about Your Shangri-La.
Greetings Rolf

Hi oldiron58
sorry - I missed Your reply.
The rotary unit (post-8, pic-1) is the Score-Motor. Every time a feature wants to take place - and it takes a few steps (rewarding You with 300 Points - pulsing 3 times the 100-Point-Relay etc.) the feature calls for help - the Score-motor does a turn - pulsing.

You manually activate the "V-Replay-Button-Relay". You get a nice reaction (restarted normal) - but then (You let go) it returns to "Game-Over".
Please do the same with the "S-Start-Relay" and report (probably the same reaction - hopefully a better reaction).

Recel pins are (sometimes) clones of Gottlieb pins - the logic is the same. At the end of the Reset (Score-Reels and such) the pin does reset the "Relay- / Reset-Bank" - does Your pin activate (at end of Reset-Cycle) this bank (post-8, pic-2) ?
Do You have a 4 Amp Fuse nearby the Bank ? Some other place in the cabinet ? Look around everywhere - take a fus out of the holding socket - look at the socket -> wires soldered-on ? Test the fuse with an simple flashlight - is the fuse good ? (a fuse can be "blown" - BUT looking at it: You say "is good" - BUT it is blown. Do this with every fuse You find.

The "blue resistor" ? I guess this is a capacitor - broken down / shot. It should not overheat.
I look in the schema "Bangbang" - at G-9 I see a symbol drawn - I do NOT understand / do not know. It is in the wiring of "Coin-Lockout-Coil"- there is also the symbol of a "diode". Do You have a diode with the "blue resistor / capacitor" ?
Unplug the Line-cord -> Unsolder both sides (take away the wires) at the "blue resistor / capacitor".
Plug in the pin - do some testing -> Do you have "normal-faulty" behaving ? OR: NOTHING WORKS (anymore) ? Please report.

Shangri-La was my first love (1969/70) - still it is - playing a couple of games is (very) good therapy.
Looking at Your picture in post-5: You have the "Jumper-Jack (for REPLAY-GAME) mounted - question: do You have the ultra-rare "Extraball-Relay available on request (1967)" ? Look here: http://mirror2.ipdb.org/files/2110/Williams_1967_Shangri_La_Extra_Ball_Relay_Assembly_Installation.pdf , here (Gay 90's): http://www.ipdb.org/showpic.pl?id=989&picno=53310

(((Shangri-La: Want to read: https://pinside.com/pinball/forum/topic/personal-touch-to-your-em-games -> post-264 -> https://pinside.com/pinball/forum/topic/anyone-know-the-first-williams-game-to-include-a-manual -> post-9, post-11, post-12 (-13, -14, -15): Does Your "Center Target look like the one in post-12" please report.
Read my post-9, Do YOU want to have such a "add on" (((Everything You have PLUS the opportunity to gain a Extra-Ball, Text in post-9: "With all (my) information ..."))) - then write.
Greetings Rolf