I'm getting close on this machine! Goes through start up sequence; motor runs, player unit resets players 1 & 2 then 3 & 4, ball kicks into shooter lane, player 1 lit, ball 1 lit, but no flippers or playfield GI, however kick out holes do eject ball, but nothing else on pf works.

Thanks Mark.
GI issue solved (fuse holder).
Repaired broken sw blade on Q relay on flipper circuit. Now cycles thru reset sequence, but no ball eject, dim pf GI and flippers have weak power, then 5A fuse (circuit breaker) blows.

Checked my repair against schematic and all looks in order. 5A fuse blowing is main back near xfmr. With power on when I manually close the out hole sw (or when I start a game) I get a momentary bright green arc on the bottom right sw of the ‘O’ relay, then a couple seconds later circuit breaks, wires red/yellow; red/yellow (see photo).

B636D537-774F-49A1-AABA-1BB1FECA5F3C (resized).jpeg

Label: “Primary Fuse 5 Amp SLO-BLO” shown at the very bottom of the schematic (F23).

It’s a pair in and a pair out, upon closer inspection looks like Red/Yel and Red/Wht.

3 other fuses (on bottom board): 25V/15A, play board lights: 10A, Lightbox light fuse: 15A.

The problem sure seems to be on the 25V A/C side. Switch stack on AX relay with 2 pair red/yel and red/blk gets hot due to short. Incidentally sw I repaired on “Q” relay also has 2 pair red/yel and wht/red. If I put a piece of paper between contacts, game resets ok, kicks out ball, but again, no flippers (same as before).

Thanks for hanging with me on this Mark!