Question about Acer Aspire 5100 Notebook

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Hi to all gurus out there! Mine is an acer aspire 5102 WLMI(~ACER 5100). Last night when I was watching a movie on my lappy the screen suddenly blacked out.When i turned down the volume, I heard a little hum and i tried turning off /on my display, it succeded for the 1st time but after some 10 min I heard the voice again and this time its completely gone! I googled reg this issue and found the possible causes wud be the inverter / back light (CCFL). I replaced them both but 'd no luck at all! i figured it out that the problem 's not either of these two but the inverter is not getting power supply.I changed the ribbon cable but again no use :( Is the problem with the mother board? is there any work around to draw power from some where else to the inverter.I apprecaite if any one can help me to troubleshoot the motherboard connections(any chip / FET).Thanks.

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  • swarup_drl Feb 20, 2009

    forgot to add this to the above request! when i connect an external display the video comes fine.I also cud see a faint image on my notebooks LCD.

  • Anonymous Feb 24, 2009

    thanks for a reply.well i dont think i need to change the lcd as the baclk light is separable from the lcd and it shud glow when removbed from from the lcd and connected to the inverter.But that aint happen! i could even read a 19v dc from the motherboard to the inverter input.but i dont read any ac voltage at the input leads of the transformer.cud h=this be coz of a possible fried fuse on the inverter?

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If u are getting pic on ext display and u have changed the ribbon and inverter then i am pretty sure that ur LCD is faulty try changing it

Posted on Feb 23, 2009

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Posted on Jan 02, 2017

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On one acer I'm currently working on,(that had a smashed screen, I installed a replacement screen, and had the same issue. So I replaced the inverter - same. I tried a good test tube on the inverter - nothing. I then disassembled the notebook and removed the mainboard. On the opposite site to the lcd connector I found a fuse labelled F2 (near a larger fuse labeled F1). This has shorted out.

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Unfortunately I dont know the rating of the fuse, however. I presume 12v but no idea on amp rating

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