LCD Cables 91P6827 and 91P6857 (91P6892) differences (T/R)?

[Matteo]

LCD Cables 91P6827 and 91P6857 (91P6892) differences?
The problem is that I can not start my R51 after motherboard replacement (I took motherboard from T model, but with the same ATI 9000/32 chip). The notebook works with external monitor, turns on LCD lamp (and you can adjust brighness of a black screen) but there's nothing shown on LCD panel. Probably I need to get T series LCD cable?
Thanks

[richk]

The T series and R series cables are different length, so the wrong one won't fit fight, but as long as the panel, cable and inverter match, they will work with T or R motherboards.

[Matteo]

The T series and R series cables are different length, so the wrong one won't fit fight, but as long as the panel, cable and inverter match, they will work with T or R motherboards.

thanks for the answer! It really helps me