Ok, just checked on my machine and the £25 jackpot doesn't work on mine either, so I think it's safe to assume The Real King was correct in his post that it's not supported on a Pluto 5 board. It doesn't really affect me though as I only wanted the £5 jackpot anyway.
could you show images of the other page so i can see what all the switches do many thanks
Bank 1
DIL 1 - ON - Float is viewable in door closed refill mode DIL 2 - ON - Direct payout is enabled DIL 3 - ON - Maximum bank is equal to jackpot......... - OFF - Maximum bank is equal to jackpot * 5 DIL 4 - ON - Do not show percentage in door closed power up DIL 5 - RESERVED
DIL 6 to 8 - Prize switches (as photo)
Bank 2
DIL 1 to 4 - Stake switches (as photo) DIL 5 to 8 - Percentage switches (as photo)
--------- As someone else has mentioned it may be possible that the £25 jackpot doesn't work, as I've never tried it, as I changed mine down from £8 to £5, however my machine has all the prize laminates for £25 jackpot, and it is a Pluto 5 board, I will however check it on mine and see. As for the error, I had the same error when I switched down to £5, and it was because I hadn't switched it over fully so just make sure the switch is pushed fully over, or it's possible that the £25 just doesn't work.
ERR_STAKEANDPRIZE 56 - Stake and prize key not present or invalid.
On the board you are looking for the two red blocks of dipswitches. The one to the left is Bank 1, the one on the right is Bank 2. DIL 1 is at the bottom of the Dipswitch Bank. It was easier just to take a quick photo of the settings from the manual than type them all so here they are. The jackpot can actually go to £25.