IBM Thinkpad (mode r42?)

[jrwpmw]

My LCD/Monitor started flickering a little bit the other day. Now, it's out completly. When you start it up, it comes on and then goes off about 5 seconds later. If you close/open it, it comes on again for about 5 seconds and then goes blank again. The laptop is booting/working fine.

I saw a post about that little button that gets depressed when the laptop is close. But it's not stuck, and seems to operate fine. If I push/release it the display comes on for 5 seconds an then goes off again.

Any idea what's up? The laptop works fine pluged into another monitor via the video/display port.

Thanks,

[Harryc]

It's either a defective inverter of bad CCFL (back light). My first guess would be a bad back-light, but an inverter is cheap and can be tried first. If you need to replace the CCFL most on the forum would recommend that you replace the entire LCD panel.

[jrwpmw]

If I replaced the entire LCD - would that take care of both the CCFL and inverter?

P.S. - I don't know if this helps, but there is a buzzing noise when the LCD is on. Would that be more inverter related for CCFL? Again, I might just replace the whole LCD to be safe if that covers both.

Thanks!

It's either a defective inverter of bad CCFL (back light). My first guess would be a bad back-light, but an inverter is cheap and can be tried first. If you need to replace the CCFL most on the forum would recommend that you replace the entire LCD panel.

[Harryc]

The inverter and LCD are separate components. Buzzing is inverter related, but the buzzing could be caused by a worn out CCFL . If this is a critical repair (as in it must work the first time) then get both an inverter and an LCD panel. If you purchase a complete LCD assembly with covers. cables, etc it would include both. EBay is a good start.

[hunterman223]

What thinkpad is this? Are you referring to a T42? The title says R42. Has the display ever shown a red or yellow tint?