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Old 07-13-2021, 02:12 PM   #138
Fr0sT
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Join Date: May 2021
City & State: Sofia
My Country: Bulgaria
I'm a: Knowledge Seeker
Posts: 4
Default Re: Dell 2007FPB teardown

OK I think I got the pins I needed on the power board on the connector towards the inverter (marked on the first picture). I've tapped directly on the connections from the power board towards the inverter and left the inverter board disconnected, just connected the LED driver board on it's place. All went good, the 2 LED strips lighted up when hitting the power button, I've assembled back the panel and tested it again - the "No input signal" box appeared on the screen, jumping up and down. At this point I wanted to test the brightness adjustment before final assembly and hooked the monitor to my PC but unfortunately somehow I've shorted the power board and all went out with sparks, smoke...

At first look the big capacitor seemed fried (marked in orange on the first picture), measuring it's pins with my multimeter results in 0 resistance, it also beeps on shorted circuit.

First question is can I replace it with any other 180uf 450V capacitor, I've found some in local retailers but smaller in size and temperature (85C vs 105C).

Second question is is it possible that I've fried something else besides that capacitor, any ideas what to check ?

Apologies if questions seem silly but I'm more of a computer guy and electronics has never been my strong field, still I'd want to fix that monitor.
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