Leaderboard

I wouldn't bother fitting those components. You do have the correct values though. D1 & 2 are 1N4148, C1 is 33uF/25v and T1 is ZTX108. All it did was put a delay in the RESET and I've put a note on it saying not fitted to most boards.

They were designed to try and combat a high degree of fraud on S1 coin mechs. Any coin the wrong size that did not fit the cradle at the back would drop out the back,As the front reject plate of the mechs were being levered to one side to gain access to the coin switch from the front so,The metal shield over the coin switch was another anti fraud device then upgraded to the black plastic fitting which completely encapsulated the switch wire arm was another addittion.The black plastic fitting will also spit coins out the back but, As they not used in sevice,as it has been said just block that gap at the back of the unit as shown in picture.