Hi Allen thanks for comming back to me. Thats good information. I have another question, is the ami amp true stereo, as this rainbow amp has two channels but the pickup input is linked together on the pcb, so its really mono (strange). On the good side I replaced the backup battery (fitted button cell base), and its working correctly now, and the amp is working but as you said I not impressed. I set the door switch to service mode but dont know the setup procedure at the moment. I am trying to get a manual as I have a problem with the 10P not giving credit, I checked and cleaned coin chute switches and its going back to the main module. Well at least its getting there. One other thing doeas anyone know where I can get a door gas strutt, one is faulty, so a length of wood at the moment.