Question about Acer AL1912 19" LCD Monitor

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No power to moniter

My moniter has no power light and doesent come on now. it worked earlier today.

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  • Eriksen Oct 25, 2008

    i have the problem but with a monitor from denmark ?????

  • robind1 Feb 09, 2009

    For the last two days it has been intermittantly turning to black as it comes out of the powersaver. Turning the monitor off and on seemed to fix it. This morning however there was no power light on attempting to turn on. Checked mains power was there and then found Steve's brilliant advice on disassembling the monitor. Unfortunately there is no obvious damage while inspecting the board.

    Does anyone have a list of test-points and signals or voltages for the boards please?

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Disassemble the monitor and check the power board for blown capacitors. To do this remove the 4 screws holding the back on, unclip the cover where the stand is fixed to the screen chassis and remove 4 further screws securing the stand. Carefully prize off the bezel (I found a mid sided flat blade screwdriver inserted and slid sideways with an occasional gentle twist worked well, I started at the bottom of the sreen so if I made a mark interting the blade it would not show). Unscrew but do not disconnect the wires to the keyboard board so it moved enough to allow the back cover to be slipped off. Remove two screws and slide off the EMI cover. You should now see the power board - the one the power cable plugs into. Check the capacitors - its likely you will see one or more have blown and are bulging. Replacements cost approx 50p / 1$ each you will need good de/soldering skills, soldering iron and solder ****** or desolder braid. This voids any warrantee - but then if you had warrantee you wouldn't fix it yourself anyway. Note that all the above is based on UK spec monitor.

Posted on Oct 20, 2008

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