Question about Toshiba QOSMIO F15-AV201 Notebook

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How do I remove the invertor from a Qosmio F20?

How do I safely remove the invertor from a Qosmio F20?

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The easy option is to Disassemble, i recommend you give it
  to a technician.  

Posted on Nov 16, 2009


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You can use a can of compressed air or an air compressor to clean it, or you can also use a vacuum with a hose attachment to clean it. Or you can use any combination of the three.

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To reset the BIOS read the information from this link.

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Toshiba Qosmio f20 not booting up

Dear Sir,
Try this, remove the power plug and battery, wait for five minutes and plug the computer to power with out the battery and try to start it.

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2 Answers

How do I remove the invertor from a Qosmio F20?

The inverter is located behind the bezel at the bottom of the screen/lid and in between the hinges.
The bezel has screws that fixes it to the lid and these can be hidden by stick-on plastic covers. Use a thin sharp point to lift these plastic covers off to reveal the screws. Remove these screws.
The bezel has small plastic catches that clips it to the lid and may also be fixed to the LCD screen with double sided tape. Use a thin blade and insert it between the LCD screen and the bezel and gently ease the bezel off. Start at the bottom of the screen and gradually work along the edge and continue around each side to free the bezel.
Be CAREFUL not to scratch the LCD screen and DO NOT apply too much pressure to the face of the LCD screen because you can crack the glass surface and ruin the LCD screen.
Once the bezel is removed then you can get access to the inverter to remove it.

Nov 16, 2009 | Toshiba Qosmio G15 Notebook

2 Answers

My laptop screen will not turn on. The laptop turns on & I hear it working, the screen will just not turn on.


This sounds very much a backlight or invertor issue and will need to be replaced. If it is the backlight then a screen replacement at about £140 is a rough guide. IF its the invertor then they tend to range from £10 to £40 and really both jobs should be done by a reputable computer retailer.



Nov 02, 2009 | Toshiba QOSMIO F15-AV201 Notebook

1 Answer

Card slot not working on qosmio f20

There is. You'll need to download it from Toshiba's support page. Try this link:

Click the Downloads tab, and where it says Refine Search By: click the All Categories drop down menu, select SD. Run the donwloads available there.

If the above link didn't work, use this one:

Feb 13, 2009 | Toshiba Qosmio G15 Notebook

1 Answer

Error F20 unable to detect internal memory

The internal memory on the F20 is actually an mini SD card inside the unit and this fault is caused if the card can't be read. This is mostly likely because there is a poor connection to the card. To cure the problem:
1) Remove the two screws on the bottom of the unit.
2) Divide the two halves of the case. Its best to do this by using your finger nails or a plastic lever. If you use a screwdriver or something similar you will most likely damage the case. Take care when you finally are able to divide the two halves of the case not to strain the cables connecting the battery and loudspeaker.
3) You should be able to see the SD card in its holder on the circuit board. To remove the SD card pull the top edge away from the board and the top half of the holder should hinge outwards. Don't try to pull the card out as you would do from a normal external SD slot.
4) Examine the terminals for any corrosion or contamination. In most cases just removing and re-inserting the card does the trick. You can safely switch the F20 on with the case still open, but don't attempt to insert or remove the SD card with the F20 turned on as this may damage the circuitry.
5) If this doesn't solve the problem the card itself may be corrupted. You can check this by inserting it in a computer card reader to see if it can be read that way.

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