Galaxy display with new light sensor starts out bright then goes dim; Sensor incorrectly wired

Potential Symptoms

  • Display is dim and after replacing the light sensor the sign will come on bright but then goes dim again.
    • Display seems to brighten and dim randomly.


  • Product Family: Message Displays
  • Product: Galaxy, AF-3500
  • Component: Light sensor
  • Control System:


  • Wiring to Light sensor card is incorrect (exactly in reverse order).


  • Re-terminate wiring connections according to picture below.

KB ID: DD2344583

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