In particular, the monitor may simply not turn on (too-low logic voltage or software-controlled shutdown), may blink its power LED to indicate a fault, or may turn on for a few seconds and switch off again. Depending on which one you have, your symptoms may differ to what I have observed on the AL2216W. Note: This power supply board (or very similar model) appears to be used in a variety of monitors from different manufacturers. Turns on but shuts itself off without warning*.Monitor won’t turn on, no apparent power, black screen.Upon opening the monitor, this suspicion was confirmed by several visibly bulging capacitors in the low-voltage section of the power supply. Googling the model # and terms such as “problems” or “repair” or “won’t turn on” revealed pages of discussion on the forums: it seems this model of monitor is yet another victim of the bad capacitor plague that somehow continues to sweep the electronics world. There are several dozen of this model of monitor at my work since last year or so the other day I found one on top of the dead electronics plunder pile recycling bin, looking brand new.
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