email as many highest possible resolution pics as you can stand taking to slotpics@cdyn.com and I'll add them to
https://bingo.cdyn.com/slots/892 is good enough, the 892-4 paperwork on the above site should be the same for most of the circuits.
especially the entire game front and pics behind the top glass of the lamp side of the panel and all the junk on the back side.
assuming your payout disc is the one below, the 50 pay trace does extend to the main wiper reset location.
In that case, no 50 pay is one of:
- the vertical carriage switch mentioned before (it's open-after-50 steps of the payout counter on an 892) is open when the unit is reset ... or if pay is short it's opening too soon
- reel wiper issues. See if you have zero ohms between wire 43 on reel 4 and wire 90 on reel 1 when you have a 50 pay winner on the payline
- plug connection problems
100 and 200 pays are directly to fingers on the outboard carriage, so either issues with those fingers - especially the one on the F trace - or problems in the reels or plug connections again.
make sense?