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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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Laptop LCD is only half lit after CCFL repair...
Hi all:
I have an T43 Thinkpad whose LCD had been slowing dying (took on a pinkish hue until eventually the screen went dim)--I had diagnosed this as a problem with either the backlight or the inverter. So, I replaced the CCFL (yes, I realize replacing the inverter would have been an easier way to find out which part actually died, but, oh well). My LCD now has a band of brightness on the bottom of the screen...and only on the bottom. The rest of the screen is still quite dark. My question is: does this mean I replaced the CCFL incorrectly? or is the inverter true root of the problem? |
#3
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Laptop LCD is only half lit after CCFL repair...
Shnuck wrote: Hi all: I have an T43 Thinkpad whose LCD had been slowing dying (took on a pinkish hue until eventually the screen went dim)--I had diagnosed this as a problem with either the backlight or the inverter. So, I replaced the CCFL (yes, I realize replacing the inverter would have been an easier way to find out which part actually died, but, oh well). My LCD now has a band of brightness on the bottom of the screen...and only on the bottom. The rest of the screen is still quite dark. My question is: does this mean I replaced the CCFL incorrectly? or is the inverter true root of the problem? It's possible both were bad. Can you tell if the CCFL tube is lit brightly? The lamp may have been positioned wrong so that something is blocking the light. |
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