Staff Answer
Sep 27, 2026 - 10:56 AM
If you've got 120V and 12V through the rear board's fuses but the front panel is dead, check the ribbon cable between the boards for a loose or corroded connection, and make sure 12V is coming out to the optical board. If it is, the optical board has failed. For the N841/N843, that's the 628976/637780, which is discontinued.
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