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Thread: Compaq EVO N1020v Instructions/ guide for replacing LCD backlight Bulb




Compaq EVO N1020v Instructions/ guide for replacing LCD backlight Bulb
country flaguser name
United States
1969-12-31 18:00:00

Hello

Does anyone have details on how to replace an LCD backlight bulb on a
Compaq Evo n1020v Laptop, or similar machine, so that I ca attempt to
replace faulty bulb.
Have worked with electronics for 20 yrs, but if information about how
to go about it would be helpful.

Thanks

Wayne

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Re: Compaq EVO N1020v Instructions/ guide for replacing LCD backlight Bulb
country flaguser name
United States
1969-12-31 18:00:00

Sure Wayne.  I thought I had sent you some instructions, but I must have forgotten.  Here is a copy of instructions I gave someone else who is interested in doing theis himself:

First, take the LCD panel out of the lid completely.  Look it over and you will see where the little backlight plug comes out one end on the bottom edge. ; It will have a white and a pink wire, typically.  The bulb itself is located inside the panel along the bottom edge. ; To get to old one out, you will have to figure out how to remove the outer metal frame which holds the 6 or 7 layers of light diffusing material tightly against the front piece of glass, which has the actual pixels deposited on it, and is connected to the controller circuitry on the long PC board at the top, and usually also one along one side. ; These are the ribbon cables which turn the individual pixels on and off by means of complicated X-Y circuitry.  If you bend one of these ribbon cables too sharply, or pull it loose when you take the layers of this panel apart,  you will end up with dead lines up and down or across (or both) the screen.

Now after you figure out what tabs you have to bend back, and which screws you have to take out to get the disassembly process started, find a nice soft lint free workbench to begin peeling back the layers inside the panel, and eventually you will see where the reflective channel containing the lamp is located and be able to remove it.  Now you are almost half way done. ; The next steps will involve removing the lamp from the channel, replacing it with a known good one, putting the channel back properly on the edge of the plastic light diffuser plastic piece, then laying the diffusing layers back in place properly one at a time making sure they all line up   (Oh, and if you get any dust particles or fingerprints on these, you will be able to see them forever more after you get the unit back together)  If you are good, you will be able to get the metal frame back around the whole assembly, turn the screws in, bend the tabs back, and hook it all back up inside the lid and have a good unit once again.

Ardell Faul
Computer Monitor Service Inc.
Laptop Computer & Monitor Repair
10816 E. Mission Ave.,
Spokane Valley, Wa.  99206
icehouse.net">ardellicehouse.net
509-891-5188


w_savage2004 wrote:
eGroups.com" type="cite">

Hello

Does anyone have details on how to replace an LCD backlight bulb on a
Compaq Evo n1020v Laptop, or similar machine, so that I ca attempt to
replace faulty bulb.
Have worked with electronics for 20 yrs, but if information about how
to go about it would be helpful.

Thanks

Wayne


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