Fruit Machine Chat

Here goes I been having a problem with the display on a Bar x 10
electrocoin so I changed the MPU and on turning on the machine the reels just keep going around stop for about a few secs and then repeat, dont know where to look now. but old board back in and it do the same was allright before.

Have I fryed the program chip.

On the board bown the right hand side:

there are plugs connected to

HD1 HD2 HD9 anyone know what are connected to theses or is there a list anywhere saying what HD1 HD2 HD3 HD4 HD5 HD6 HD7 HD8 HD9 HD10 HD11 HD12 what are pluged on these

Thanks for any help

the program will be ok,when you have taken the board out you had to remove the reels and it is likely you have pushed a pin out of reel 1,as the other reels won,t set up until number 1 does.The machine will still set up without the HD plugs out as they are only lamps except for HD 10 which is a hopper divert connector