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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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Laptop LCD backlight repair
I'm trying to repair the backlight of a Compaq Armada 1750. Having extracted the LCD panel from the case, the backlight tube seems to be integral with the LCD panel. Does anyone know (a) if it's possible to get a complete replacement panel any more (we're in the UK so preferably from Europe - searched the web with no result) (b) if it's possible to get the backlight tube out of the panel to replace it. The inverter is working properly and outputting KV's (nice corona discharge to my meter probe!) The machine is getting a bit old, if DIY repair fails it will be cheaper to get a new one, so it's a case of "fix or bin". -- Tim Mitchell |
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Laptop LCD backlight repair
Tim Mitchell wrote:
I'm trying to repair the backlight of a Compaq Armada 1750. Having extracted the LCD panel from the case, the backlight tube seems to be integral with the LCD panel. Does anyone know (a) if it's possible to get a complete replacement panel any more (we're in the UK so preferably from Europe - searched the web with no result) It may be, however they are very expensive typically. I don't know how recent the 1750 is. (b) if it's possible to get the backlight tube out of the panel to replace it. I have dissasembled several panels to the point that I would have been able to replace the backlight if I wished. Generally it involves lots of fiddly screws. A digital camera/video camera is handy to record what went where. The inverter is working properly and outputting KV's (nice corona discharge to my meter probe!) The machine is getting a bit old, if DIY repair fails it will be cheaper to get a new one, so it's a case of "fix or bin". Fix or ebay also works. If someone has spilt something in theirs, they may need a new lower half. -- http://inquisitor.i.am/ | | Ian Stirling. ---------------------------+-------------------------+-------------------------- Two fish in a tank: one says to the other, "you know how to drive this thing??" |
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Laptop LCD backlight repair
In article , Ian Stirling
writes Tim Mitchell wrote: I'm trying to repair the backlight of a Compaq Armada 1750. Having extracted the LCD panel from the case, the backlight tube seems to be integral with the LCD panel. Does anyone know (a) if it's possible to get a complete replacement panel any more (we're in the UK so preferably from Europe - searched the web with no result) It may be, however they are very expensive typically. I don't know how recent the 1750 is. (b) if it's possible to get the backlight tube out of the panel to replace it. I have dissasembled several panels to the point that I would have been able to replace the backlight if I wished. Generally it involves lots of fiddly screws. A digital camera/video camera is handy to record what went where. The inverter is working properly and outputting KV's (nice corona discharge to my meter probe!) The machine is getting a bit old, if DIY repair fails it will be cheaper to get a new one, so it's a case of "fix or bin". Fix or ebay also works. If someone has spilt something in theirs, they may need a new lower half. Worth a try. The 1750 model is about 4 years old, we bought it 2nd hand about 2 years ago. -- Tim Mitchell |
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Laptop LCD backlight repair
In article , Tim Mitchell
writes In article , Ian Stirling writes Tim Mitchell wrote: I'm trying to repair the backlight of a Compaq Armada 1750. Having extracted the LCD panel from the case, the backlight tube seems to be integral with the LCD panel. Does anyone know (b) if it's possible to get the backlight tube out of the panel to replace it. I have dissasembled several panels to the point that I would have been able to replace the backlight if I wished. Generally it involves lots of fiddly screws. A digital camera/video camera is handy to record what went where. I have eventually managed to extract the backlight tube, it is 2mm dia 295mm long, but now I can't find anywhere which supplies one that long. Any ideas? The display is a Samsung LT141X5-124. -- Tim Mitchell |
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Laptop LCD backlight repair
On Thu, 18 Sep 2003 10:47:08 +0100, Tim Mitchell
wrote: In article , Tim Mitchell writes In article , Ian Stirling writes Tim Mitchell wrote: I'm trying to repair the backlight of a Compaq Armada 1750. Having extracted the LCD panel from the case, the backlight tube seems to be integral with the LCD panel. Does anyone know (b) if it's possible to get the backlight tube out of the panel to replace it. I have dissasembled several panels to the point that I would have been able to replace the backlight if I wished. Generally it involves lots of fiddly screws. A digital camera/video camera is handy to record what went where. I have eventually managed to extract the backlight tube, it is 2mm dia 295mm long, but now I can't find anywhere which supplies one that long. Any ideas? The display is a Samsung LT141X5-124. Just do a Google search for "Cold Cathode Fluorescent Lamp" (CCFL). The same tubes are used to light up the computer cases favoured by gamers and overclockers. The trick will be finding one that's the correct size as the advertisements rarely offer dimensions. For example: http://www.tigerdirect.com/applicati...20WH&CatId=882 -- Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060 (831)421-6491 pgr (831)336-2558 home http://www.LearnByDestroying.com AE6KS |
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