Re: 2007FPb - Backlight Flickers - Backlight Shuts Off - Buzzing and Crackling Noises

I might have overlooked something. I didn't take careful enough note if there was a transformer in-line between the AC and the rectifier. I am leaning toward about 75% sure that there was because that is where all the noise was coming from. . .

I don't know then if it was a step-up or step-down. If it was a step up then 400 V rating on my replacement might not have been sufficient.

For posterity, the way to know for sure is to get a datasheet on the transformer, or measure...

Firstly about safety. This monitor has lethal voltage inside. Especially on the the large cap and associated circuit sections on the L shaped power supply board.

Stage one of the power supply rectifies 115 Vrms houshold AC and feeds it into the 180 uF 450 V cap. Just two torroidal inductors and maybe a transformer limit the current. This cap holds a lot of energy and has the power cord feeding more energy in as well. This part of the circuit is designed to provide very high current spikes to the rest of the power supply without having much droppout in voltage. If you touch it, it...

Re: New Members - please post your introductions here

Greetings. I am definately not a spam bot if that's the objective of this. . .

Wouldn't it be ooooo scary if an AI bot could pretend to be as original as me? Keep an eye out though they'll be out and about soon.

In not too much time I hope to have my magneto poles back to a nice even entropy after a mishap due to a "slight magnetic anomaly" here in my "secret lab."