Having problems with your Gateway SL9550-30165318 Notebook ?
No display lights
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\015 My gateway laptop just lost its lights on the display works well but no screen lights\015
TURN OFF LAPTOP, REMOVE AC PSU AND BATTERY
Open the laptop lid and check the thin ribbon cable (looks like dirty yellow or orange scotch tape with several small thin metal lines parallel to each other). This comes down from LCD/screen, to the lower laptop case. It will have a connector that has a clip/release compressing the ribbon in the jack. Release it, and GENTLY pull the end out. Old laptops get oxidation here that causes your symptoms. Use a stiff piece of CLEAN denim material ("jeans" to "buff" or "polish" the bare metal at the end of the cable. Then insert back into the jack and press the clip down evenly.
Reassemble laptop. If symptoms remain, then it is your fluorescent tube. Laptops have VERY thin fluorescent lights, about 2-3mm in diameter. You need to open the LCD/SCREEN case, and take NOTES how everything is taped inside as you disassemble. On the sides or top will be (usually) two, sometimes only one illumination tube sealed in a channel. If it has black or grey color at either or both ends, it is burned out. You will need to remove it and replace it. If the tube is NOT burned out, then it is either the connections (check all, in the area/connecting to tube). Last, if nothing was loose then your inverter is bad. If it is soldered to the main board, your laptop is "toast". It is over, unless you can find a GUARANTEED used or new replacement for a price you feel is good. However, if the inverter is inside the LCD/Screen/LID, this can often be a plug-in unit that is replaceable, if you can find the parts (again, for a price you feel is worth it).
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