The leads would break from vibration, and the optos would fall off).Īll WPC-DCS (1993) and later games use optos to sense balls in theĮach opto switch has two parts a transmitter and a receiver. Williams drop targets use optos (they stopped using them there because WPC Fliptronics flipper buttonsĪre opto activated. Williams uses optos for lots of applications. Shown is a replacement LED transmitter for the stand-up optos, andįor opto boards used in ball troughs, etc. LED is larger and protrudes further from its case. Optos are two parts: the green board opto stand-up is the transmitter,Īnd the blue board opto stand-up is the receiver. These consist of a transmitter and receiver in one package. Optos are used for Fliptronics flippers, Twilight Zone clocks, etc. Several different optos used in Williams games. LED's aren't much different than light bulbs they Opto switch is always powered on, as long as the game is Get dirty (from that infamous black pinball dust), and not work. Receiver (the LED that receives and interprets the light). Micro-switch): a transmitter (the LED that emits the light), and the They consist of two parts (instead of one part like a No moving parts, and they can fit in tighter spaces.
These optics have two advantages over conventional mechanical switches:
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This is similar technology to what is used in TV remote controls When things don't work: Infrared Optic SwitchesĪs early as 1982, Williams started using infrared optic light emitting diodes (LED's)įor switches.
These pinball repair documents have been available, repair facilities are reporting aĭramatic increase in the number of ruined ("hacked") circuit boards sent in for repair. YOU SHOULD NOT TRY AND FIX YOUR OWN PINBALL GAME! IF YOU HAVE NO EXPERIENCE IN CIRCUIT BOARD REPAIR, Games made from 1990 (Funhouse) to 1999 (Cactus Canyon). This document is a repair guide for Williams and Bally WPC pinball Repairing Williams/Bally WPC Pinball Games from PINBALL: Repair Williams, Bally Pinball Games 1990-1999 part three
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