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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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HP Laptop Screen Problems
I have a HP Pavilion N5440 laptop. I have been having a problem with my
screen. It seems like the hinges are loose or something. The screen will flicker or go black. But if I prop it against the wall it will stay on. So I feel like the connection is loose. Can someone tell me if this can be easily repaired at little cost? I fear if I bring it into CompUSA they will tell me I need a whole new screen, which will be the cost of a new laptop. The fact that the screen works all the time except if I move it away from the wall makes me think the screen is fine. I appreciate any advise. K |
#2
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Sounds like the connection from the inverter to the backlight is loose,
although it could be the connection to the inverter or at the backlight as well. I've replaced the inverter on a similar vintage of HP unit and it was not too difficult to get to if you are handy and have a set of precision screwdrivers. Bob "itsme" wrote in message ... I have a HP Pavilion N5440 laptop. I have been having a problem with my screen. It seems like the hinges are loose or something. The screen will flicker or go black. But if I prop it against the wall it will stay on. So I feel like the connection is loose. Can someone tell me if this can be easily repaired at little cost? I fear if I bring it into CompUSA they will tell me I need a whole new screen, which will be the cost of a new laptop. The fact that the screen works all the time except if I move it away from the wall makes me think the screen is fine. I appreciate any advise. K |
#3
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How much was the inverter? Where could I find the tools needed and what do
they cost? Or should I chance giving it to CompUSA or another repair service? "Bob Shuman" wrote in message ... Sounds like the connection from the inverter to the backlight is loose, although it could be the connection to the inverter or at the backlight as well. I've replaced the inverter on a similar vintage of HP unit and it was not too difficult to get to if you are handy and have a set of precision screwdrivers. Bob "itsme" wrote in message ... I have a HP Pavilion N5440 laptop. I have been having a problem with my screen. It seems like the hinges are loose or something. The screen will flicker or go black. But if I prop it against the wall it will stay on. So I feel like the connection is loose. Can someone tell me if this can be easily repaired at little cost? I fear if I bring it into CompUSA they will tell me I need a whole new screen, which will be the cost of a new laptop. The fact that the screen works all the time except if I move it away from the wall makes me think the screen is fine. I appreciate any advise. K |
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On Mon, 4 Oct 2004 15:08:21 -0400, "itsme"
wrote: I have a HP Pavilion N5440 laptop. I have been having a problem with my screen. It seems like the hinges are loose or something. The screen will flicker or go black. But if I prop it against the wall it will stay on. So I feel like the connection is loose. Can someone tell me if this can be easily repaired at little cost? I fear if I bring it into CompUSA they will tell me I need a whole new screen, which will be the cost of a new laptop. The fact that the screen works all the time except if I move it away from the wall makes me think the screen is fine. I appreciate any advise. K It sounds like the cable that connects the screen to the motherboard is failing. They frequently develop cracks after several years of flexing each time the lid is opened or closed. It can be a pain to replace, but won't require a new screen. If the screen goes dark, but you can still see the image when you ****e a bright light at the screen, then it's the cable to the back light inverter. If the screen still prodused some light, but goes blank it's the cable to the LCD. Andy Cuffe |
#5
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I found an inverter for about $45 IIRC. I called around to a lot of
different places, including HP and some of the larger electronics repair places who said they would not sell the inverter and only offered to ship out the unit for replacement of the LCD at about $700 IIRC. When I did find a few places that would sell just the inverter I remember getting quotes for that part alone that ranged to $150 (over three times the amount I paid). I also recall finding a web site that offered "refurbished inverters for under $50. You can actually use Google to find these by typing in the manufacturer and part number that is stamped on the inverter. (Mine was made by Ambit, but I don't recall the part number and yours is likely different anyway. In the end, after making several calls, I found a local "no-name" computer repair depot that was willing to order me the part and tacked on a reasonable service fee instead of selling the part retail. Good luck. The fact that your unit stops and restarts with physical positioning seems to indict a cable or connection and probably not the inverter. In my case, the unit started taking longer to light and eventually died completely. You could tell it was the backlight because the text/graphics were still being displayed and could be seen changing by holding the unit up to a light source that reflected off the glass at the right angle. It has been working fine since the inverter was replaced. Bob "itsme" wrote in message ... How much was the inverter? Where could I find the tools needed and what do they cost? Or should I chance giving it to CompUSA or another repair service? "Bob Shuman" wrote in message ... Sounds like the connection from the inverter to the backlight is loose, although it could be the connection to the inverter or at the backlight as well. I've replaced the inverter on a similar vintage of HP unit and it was not too difficult to get to if you are handy and have a set of precision screwdrivers. Bob |
#6
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I have a HP Pavilion N5440 laptop. I have been having a problem with my screen. It seems like the hinges are loose or something. The screen will flicker or go black. But if I prop it against the wall it will stay on. So I feel like the connection is loose. Can someone tell me if this can be easily repaired at little cost? I fear if I bring it into CompUSA they will tell me I need a whole new screen, which will be the cost of a new laptop. The fact that the screen works all the time except if I move it away from the wall makes me think the screen is fine. I appreciate any advise. K It sounds like the cable that connects the screen to the motherboard is failing. They frequently develop cracks after several years of flexing each time the lid is opened or closed. It can be a pain to replace, but won't require a new screen. If the screen goes dark, but you can still see the image when you ****e a bright light at the screen, then it's the cable to the back light inverter. If the screen still prodused some light, but goes blank it's the cable to the LCD. Andy Cuffe Can the cable alone be replaced? Or do I have to purchase additional parts to get the cable? |
#7
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On Tue, 5 Oct 2004 14:03:35 -0400, "itsme"
wrote: Can the cable alone be replaced? Or do I have to purchase additional parts to get the cable? I don't know about hp, but I once bought a cable for an IBM. It was about $30 and included the LCD cable and backlight cable. Have you checked ebay? A lot of laptop parts seem to end up there. Andy Cuffe |
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