Having problems with your IBM ThinkPad T41 Notebook ?

My t41 thinkpad screen goes black after about three to five minutes after booting. I have replaced the lcd inverter card twice. with the same results. I can see the data with the use of a flashlight. Whats should i do next. Charles


Answers :

If you can see the data with the use of a flashlight, that is surely the inverter.

The thing that would be done by a technician at repair shop is keeping laptop on and partially disassembled, with display front frame off and keyboard and upper cover removed. When the laptop turns off, he will test the inverter AC out, an the inverter DC input, If inverter has regular AC out and there is no light, check backlight contacts, and eventually replace backlight. If there is no AC out , test DC input, if there is no voltage in, then test the inverter wiring harness to mainboard reading continuity on wires and testing contacts on motherboard.
The testing is quite risky , as the inverter is an high voltage board, and must be done by an experienced reparer, taking all safety measures required.
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