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Blue Screen Again
Posts: 2
Registered: ‎11-27-2011
Location: NY
Message 1 of 3 (919 Views)

Z61T Backlight or Inverter or Fuse

Hi.  I have an almost 4 yr old Z61t that just stopped working last night.  I can see a faint image on the screen, but there appears to be no backlight.  It seems the likely failures are the backlight, the inverter, the cable, or a mainboard fuse.  I'm looking for how to easiest/cheapest/fastest to determine which is the true culprit, rather than just replace components willy/nilly...

 

Any ideas how to narrow down the possibilities?

 

I had closed the cover as I thought I was done for a while... a while later I reopened to continue working, and the backlight wouldn't come up.  Was plugged into AC with full battery charge at the time.

Posts: 3,553
Topics: 28
Solutions: 279
Registered: ‎01-21-2010
Location: Etters, PA
Message 2 of 3 (904 Views)

Re: Z61T Backlight or Inverter or Fuse

Hi glaufman and welcome to the Community,

 

Here's a pretty good guideline.

 

http://forums.lenovo.com/t5/Z-Series-ThinkPad-Laptops/Z61t-LCD-Backlight-Inverter-Test-Points-and-Sp...

 

Dave



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Blue Screen Again
Posts: 2
Registered: ‎11-27-2011
Location: NY
Message 3 of 3 (883 Views)

Re: Z61T Backlight or Inverter or Fuse

Thanks. found that before.  I have acquired a new inverter board and will be changing it shortly.