Re: Dell 2408WFPb / 2408WFP - No Power

Hi all,
My monitor started not turning on: either the LED was on but the power button did nothing or the LED would blink for a 1/10s when the monitor was plugged in.
Initially, I had something around 23VDC on the power board output but also 50VAC superimposed on the output (referenced to chassis). The USB ports were receiving 5V.
I've replaced the old TL431 (which tested fine with 1k resistor on a power supply) with another one (also tested) but now I get 65VDC output and a burning smell from the area around R611.
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Re: New Members - please post your introductions here

New member, trying to get full access.
EE degree but limited repair experience. Coding experience ranges from PIC10F up to 'clouds' (Java).
Basic hardware, SW and FW reverse-engineering.
A few (<10) finished commercial products, a few finished hobby projects and more than a few unfinished projects.