(Topic ID: 86994)

Possible for transistor to partially fail? RFM

By dieseldogpi

10 years ago



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  • 5 posts
  • 4 Pinsiders participating
  • Latest reply 10 years ago by MrArt2u
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#1 10 years ago

Revenge from Mars, 4 of the lamps on one particular row of the lamp matrix are not working. Tried new bulbs and twist in sockets, still not working. Checking the lamp matrix it shows all of them on the same row, but other bulbs on that same row work. Is it possible that the related transistor partially fail so only some of the bulbs in a row will work?

#3 10 years ago

I was afraid of that. Best to start with the board the lamps mount to to check the traces and then work backwards from there?

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