Lenovo Thinkpad T61 6464 - no backlight

[DeniS182]

Hi,
I have problem with this laptop. Display works fine, but there is no backlight. I checked fuses on motherboard and all are ok , then I try CCFL tube by connecting to other laptop and it works too. Then I ordered new inverter from alliexpres, but backlight not work also with this new inverter. New inverter is different , connectors are same.. I mean this invertor is not compatible or flex is broken or something on MB. Have someone schematic of this board or some advice for me which can help me?
Thanks

[mielta]

Re: Lenovo Thinkpad T61 6464 - no backlight

Hi Hop it helps

[dspok]

Re: Lenovo Thinkpad T61 6464 - no backlight

Have you on different lcd?

[Blacktek]

Re: Lenovo Thinkpad T61 6464 - no backlight

yes check lcd if not cables, if not then look for blown fuse around lcd connector.

[DeniS182]

Re: Lenovo Thinkpad T61 6464 - no backlight

Thanks all. After some measurements I think problem is in the flex cable. I checked fuses at first and all was good. I test ccfl tube on other display, on other type of laptop.
I'll replace flex cable and I'll let you know if it helps.

[RHTDM]

Re: Lenovo Thinkpad T61 6464 - no backlight

In my case only 2 beep at startup coming. There after no response.