Question about Acer Aspire 1705SMi Notebook

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CHANGING INVERTER how do I change the inverter on my acer 1705smi

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  • ruthybabe Jan 11, 2008

    Great! I can now see. Thanks a million!!!



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Always make sure the power cable is unplugged and the battery is removed before stating. The inverter is usually always right beneath the screen on most notebooks. Peel off the rubber pads or plastic covers around your screen to reveal the screws. Once all the screws are out you should be able to pull the plastic bezel off the screen. Sometimes seems stuck so pull hard but not hard enough to break it. The inverter is the little board below the LCD, usually has a cable pluged in at both ends and a few little screws holding it in. Remove the screws, unplug the cables. Reverse the process and hopefully your backlight will come on.

Posted on Jan 10, 2008


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My acer aspire 5517 laptop green blank screen and changes to red every 4 second!

More than likely the screen Inverter, Anowarul.

However the problem should be diagnosed.

Problem can be;
1) Graphics chipset
2) Video Cable
3) screen Inverter
4) LCD screen

I have a diagnostic flowchart you can follow, if you wish.
Post back in a Comment.

The plastic frame in front the LCD screen is the Display Bezel.
(Acer? LCD Bezel)

Once removed the screen Inverter is right there in front.
Mounted to the bottom of the LCD screen's Screen Frame.

Service Manual, (Free),

Go to where it states - Aspire 1200 (1200 in Blue)
Drop down to the 7th line. (5310G)
Scroll across, and click on 5517.

Post back in a Comment.


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1 Answer

Acer aspire 3000 power lights on ok,.but no screen..

First try changing the internal/external monitor setting.
This is usually done with FN-F5 or some somilar combination...the function key should have the symbols of an LCD and a monitor on it.

Failing that, the backlight or inverter board are almost always at fault.
You can often order inverter boards fairly cheap if you do some digging around online or on ebay.
If you aren't tech savvy though, I recommend taking the unit in to be serviced since you have no way of knowing if it's the tube or the inverter or possibly a fusible link (such as a 0 ohm resistor) going to the inverter.

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1 Answer

-my acer laptop screen will not get brighter every thing else works normal whats wrong with it?

If the backlight doesn't work very well, it could be an inverter problem.
Inverters can cost as little as $5.95 and up on But, changing it can be more costly.

Good luck with the repair.

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It is an inverter problem. Check all cable attachments first, then change out the inverter.

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Try to reset LCD video connector, if you have already changed and tried inverter, then check lamp.

Best of luck.


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I have a 2004 Nissan Titan Pickup Crew Cab with Rockford Fosgate Speaker System; without Navigation system. i have a laptop that i plug into the aux cable to play music with but when i plug it into the...

Hello kennycalve1,

It sounds like you picking up noise from the inverter itself. There's a transformer on the output that changes direction 60 times a second to produce the AC. A signal will radiate a short distance from the inverter and is being induced into the other wiring. I'd try plugging the inverter into another outlet in the vehicle (perhaps in the back) and maybe install a "Rube Goldberg" shield. Likewise, use a shielded cable from the laptop to the AUX input and put a "ferrite bead" on the output end. Use a large bead and wrap the cable one turn through the center.

Hope this helps.

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1 Answer

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Mine does this too. It is the inverter. Of course it goes wrong as soon as your warranty expires. It can result from Best Buy sending you the incorrect battery and them insisting to put it in even though the voltage doesn't match...

You need to replace the inverter. This page should help:

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