Welcome to the forum!
I do not think it is wise to try to replace the light engine yourself, as this is a very (most) expensive part, and I think you need some equipment to align everything properly.
Sorry I couldn't help more.
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Denon AVR-887
Klipsch RP-5 Pwred Towers (mains) (525 watts peak each 12"Subs)
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SA 3250HD
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The_Cable_Game
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