LP5907-3.3.... Somebody been playing with oscillator power ?
If you mount a new one, remember the two capacitors next to it, small one is 10u 10V X5R 0603, big one is 47u 6V3 X5R 0805, not that critical....
Yes I did maybe a year ago then got distracted, hoping to get this back working as designed. Learned alot in the last year about letting things be.... Put the iron down and listen