With that in mind I had a little looksie at the datasheet for the part in question and Immediately I realized that this had to be the one. If it was the car something or another l would be damning myself as I was putting all of my eggs in the linear regulator part basket. Although I was tempted to assume it was the car something or another my better judgement was leaning more towards the linear voltage regulator being thay it has all the classic signs of such a part between the feedback circuit, the voltage divider, the stabilizing and decoupling capacitors as well as the smoothing capacitors on what looked like the output. The toss up was between a frequency something or another, a car thingie and a linear voltage regulator. I came to find that AEBH is a very popular thing to label your teeny tiny components before shipping them out by the billions. I did what anyone with a logical thought process and troubleshooting abilities would do and I searched for a part labeled 1AEBH finding nothing really fast like, which could only be blamed on my poor eye site, which I found out upon taking a second look with my magnifying glass (which is ironically plastic) and editing my search parameters with more correct and up to date telemetry. So I took a break and had a sandwich.īack to u1. Not only would it be a pain in the ass to replace being so close to so many other components but if you over heat you begin dropping things from the other side and with my level of steady hand combined with my level of bad luck I thought disaster would come to pass if it truly was u1. I didn't want it to be u1, I really didnt. But why? So I began to investigate the ones closest to the dearly departed one by one (starting with the easiest components of course) when at last the part I was hoping not to look into had come up. That poor little diode was just seeing way too much current and although it tried… it died. Metaphorically speaking the pile of crap on the living room floor (the burn on the board for all those who are too serious). Poor little d23 just looks guilty and is easily blamed when you see the damage it caused. ![]() So I have come across a controller with this exact issue and after doing a Google search I have only found others with the same issue and no solution so I did a little bit of probing and analysis on a good board and compared the readings with the ones I procured with the subject in question and gained some interesting insight.
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