t42 display turns off

[bostonblackie]

I have a t42 that has developed this nasty habit. the display goes off about every minute or so. I have checked all the setting and could not make a change that would stop from occurring. As a work around I close the lid and raise it again and try to get done before it happens again. Any thoughts?

bostonblackie

[sjthinkpader]

Is the LCD bright and free of pink tint? If so, try replacing the backlight inverter. Otherwise could be the CCF is going out.

[bostonblackie]

thanks for the quick reply. Just what is a backlight inverter? I gather it is an internal part. On a scale of 1 to 10, how easy is it to replace it myself



thanks

Bostonblackie

[sjthinkpader]

It is very easy to remove for a 15 inch LCD, just behind the LCD bezel with two screws on the lower front behind the black dots.

14 inch is a bit harder, two screws in the front, 6 inch sides and two at top. The inverter is mounted in the lower right.

[bostonblackie]

I finally got around to replacing the inverter and powered up the machine but got the same results. I quick flash of the boot up image with pink tones, follow by a dark screen and you can just barely see something on the screen. Any thought about what my next steps would be?

[richk]

The pink makes it sound like the bulb. I personally think they are a pain to replace and I have quit doing it. There is a guy on the forum who replaces them, but reviews are mixed. In any case, with T4x machines, it is easier and cheaper to slap on a replacement screen, and the used ones are not too expensive. The last couple I sold went for about $45, cheaper if they are not perfect. (prices assume you have a 14" screen without bluetooth. 15" or bluetooth antennas are harder to find.) I probably have some more around. If you are interested, send me a PM.

[jsmit86]

I think I have the same problem. I have a very slight pink tint at start-up.
If I turn the back light all the way up, my light dies. I can restart by tapping the screen closed switch. So far, it stays lit if I turn the display down a notch.

Does Lenovo do this type of repair? If so any idea of cost.

I am not a do it your self type.

Suggestions. (I'd like to buy a new unit, but it's tough to shell out the $$$$ right now!)

[bostonblackie]

I would have to agree that doing it yourself is fought with danger. I a sort of DIY and I had an old screen to practice on. By the time I was done, I had broken the light and decide that it would be a whole lot easier to go get a used one someplace. Just my opinion.

BostonBlackie

[jsmit86]

I think I have the same problem. I have a very slight pink tint at start-up.
If I turn the back light all the way up, my light dies. I can restart by tapping the screen closed switch. So far, it stays lit if I turn the display down a notch.

Does Lenovo do this type of repair? If so any idea of cost.

I am not a do it your self type.

Suggestions. (I'd like to buy a new unit, but it's tough to shell out the $$$$ right now!)

Update - I had Moniserv do the repair. All working fine now.

[Harryc]

How much did Moniserv charge when all was said and done with shipping etc?

[jsmit86]

How much did Moniserv charge when all was said and done with shipping etc?

The repair was $115.00

I shipped it 2 day Fedex charged to my account. I did not get the bill yet, but that was probably about $50 each way. If you go UPS ground they charge you return freight, and it's less money.