Was working on a NASCAR and the sound just suddenly went out. LED1 is also out on the MPU - I'm not really sure what this LED is for, but everything else seems to check out. Replaced the Sound Chip at U7 per some past info from here and still no sound. There are other sound chips as well, that was my next thought to replace those, but thinking it may be a power or other issue, but I couldn't seem to find that LED1 indicates, but I assume it's supposed to be on.

Any help would be appreciated!

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