Question about Acer Computers & Internet

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Hello. Please help me...when I turn on the monitor after 2 or 3 seconds its turn off...It shows me the ACER log and then turn off I see a black screen...but de led is ligthing like normal funtion (green). I hvent any idea what to do...I change the capacitor but nothing....continues with the problem please help....:D

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  • matamdp85 Aug 31, 2010

    JAJA I M SORRY.. I ONLY CHANGE TH 400 V 100uF CAP the model is Acer AL1711 desktop lcd monitor ... So let me see if I andertood u....you try to told me that I must chache all caps becouse they have diferents ERS betewn newones and the olders??? :P

    Pd: Jaja sorry if my inglish is not the best :D jajajajjaa UNLESS THANK U!!!!

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Did you replace the whole set of caps in the secondary DC power supply side? Bad caps can look normal but can have high ESR. See example of what happen when not all the caps in the DC side are not replaced: http://www.fixya.com/support/t5220798-three_hp_1702s_all_flicker

But again you may have problem in the inverter driving circuits such as bad IC or transistors, transformers, etc. Do you get all the 5vdc and the 12~16vdc?
Model number will help. Please post back.
Failed TV and monitors: http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Please post back what you find.

Posted on Aug 31, 2010

  • Bud Martin
    Bud Martin Sep 02, 2010

    OK, so you replace the DC filter cap in the primary of the switching supply. Are you getting any DC voltages on the secondary side of the switching power supply. Send me pictures if you want, budmrtn@aol.com

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