Infrared receiver assembly in the black plastic housing.
CALIFORNIA WARNING
This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, go to https://www.p65warnings.ca.gov.
Infrared receiver assembly in the black plastic housing with a blue circuit board used on many late model Bally and Williams playfield mechanisms.
Reference:
A-16909
B-79711 is the set of Receiver with housing and Transmitter with housing assemblies.
A-14232 is the WPC System opto InfraRed receiver board without the black plastic housing. You can unscrew the bad board from the housing and replace with the A-14232 board.
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Infared LED Opto set Williams/Bally
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Williams/Bally opto board set
Infrared Transmitter assembly in the white plastic housing.
Williams/Bally opto board set