Question about Acer X241Wsd Monitor

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My monitor X241W flashes the ON/OFF LED, and nothing comes out on the screen. I changed all the filters,measured all fuses, transistors and MOSFET but everything seems to be all right. What else can it be? It's a shame throw it away 'cause is huge.

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  • jorge_alejan Aug 30, 2010

    After my detailed revision on my power board,and all the components looked fine,I kept cheking on the voltages in each one of them,right in the middle of the board,the voltages cut off. and it was nothing else than the transformer for 5,12 and 19 volts. I took it out and measured it getting as result that the secondary is shorted. Big trouble,because even when I found the problem it's almost imposible to find that transformer.

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It may be in the safety shutdown mode if it sensing too much current draw. No short circuits in the inverter board. Plug it ino the wall out let and do not activate the power switch so the power supply will be running without having to power up the inverter board, if the 24vd is OK in the power supply then you may jave problem in the inverter board. How does the DC voltage on the secondary power supply side? Bad caps can look normal but it can have high ESR (Equivalent Series Resistance) which is a no no for switching power supply. Post back with more info. So far I cannot locate free service manual download for this model.

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http://en.wikipedia.org/wiki/Capacitor_plague

Posted on Aug 23, 2010

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