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Problem for HP Compaq nx7300 PC Notebook
Display lights
By miroslav_dju on Oct 29, 2009
Hi. I disassembled my laptop for cleaning and when I assembled it the display lights are not working. The display itself is working but I need to light it from a certain angle to see a fade picture.
There is no signal coming out of the power supply for the lights out of XAD309NR-1WA02309X component in the bottom of the display. All wires are connected well. Is there something else I can do to locate the problem? Thank you, Treechild
There is no signal coming out of the power supply for the lights out of XAD309NR-1WA02309X component in the bottom of the display. All wires are connected well. Is there something else I can do to locate the problem? Thank you, Treechild
Best Solution
posted on Oct 30, 2009
It sounds like either the inverter board or the cathode lights behind the screen. I would first suggest double checking the wires coming from the lcd screen connecting directly to the motherboard, follow those wires up and make sure they are properly connected on the other end, then at that point I would normally replace the inverter board, one because its a lot easier and two its usually the inverter board, very rare is it the cathode light that just blows out.
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