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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 Repair
Hi , I have a DELL Latitude PIII laptop CPx with a problem with the LCD.
SVGA output is OK. Problem is many line on the screen ( Horizontal) , picture shifting from the left to the right , intermittent picture... I opened it and doesn't seem to be a bad connection because when playing with connection , doesn't change anything. Any idea ? |
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Laptop LCD Repair
Attention Dave
Hello Dave, Please see if you can help me with this issue. I bought a compaq monitor. TFT 8000. It has a bunch of coloured vertical lines that do not move or twitch. they are constantly there. The picture is perfect with the exception of the coloured lines. Any way to fix? Thanks |
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Laptop LCD Repair
"webmagic" wrote in message om... Attention Dave Hello Dave, Please see if you can help me with this issue. I bought a compaq monitor. TFT 8000. It has a bunch of coloured vertical lines that do not move or twitch. they are constantly there. The picture is perfect with the exception of the coloured lines. Any way to fix? Thanks Absolutely not a repair you can undertake yourself. LCDs have plastic ribbon cables (plastic printed wiring) with hundreds of tracks sandwiched between the edges of the LCD layers. These ribbon cables attach to driver ICs which address the rows and columns on the LCD. Horizontal or vertical lines are symptomatic of the bond failing, or one or more driver ICs failing. Sometimes they can be the result of a hairline fracture of the LCD itself. If the glass has an invisible fracture, the LCD absolutely cannot be repaired, it has to be replaced. Faulty driver ICs or printed wiring can be repaired by LCD specialists, try a web search for 'LCD repair' and you might find someone in your country who can do it, or at least give you an estimate. The companies I've looked at use a fixed-cost system for various repairs, eg, backlight, tab bonding, polariser replacement etc. The bad news is that this kind of repair is really only cost effective for high end monitors or very expensive laptop displays, I'm not familiar with the Compaq TFT 8000, but if it's a low end monitor, forget about getting it repaired. I just bought an AOC 19" LCD with DVI and analogue in, 4 port USB 2 hub and audio for 350 UKP, HP charge 800 UKP for a 14" LCD replacement for their Omnibook 6100. Absolutely disgusting, and one example of cost effective repair vs replacement! One more thing, generally the bigger the TFT, the bigger the fixed repair fee. Dave |
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