T60: Some status indicators not working

[kenwong]

The problem I'm having with my T60 is quite similar to that of monacotaxi's in here.

The power and AC power indicators stopped working a few days ago, although the AC power will still be on when the lid is closed. Now, the CapsLock indicator also doesn't work.

Any ideas or suggestions? Thanks in advance.

[RealBlackStuff]

Could be the inverter, or else a fuse near the LCD-connector on the motherboard.

[eru3]

Could also be the fault of LEDs, but unlikely. To confirm that just measure the voltage at specific LED when it should be on - if there is none or it is too low, that is fault elsewhere.

[lmittell]

I've had the same symptom once each on two different T60s. In both cases, the MB-to-display cable developed one or more open circuits. At some point, repeated cable flexing due to opening and closing the lid will inevitably cause failure.

HTH,
Larry

[precip9]

I have the same symptom on an X61. Replacing the inverter did not fix it. Inspection of the fuses revealed nothing. So I'd try a cable.

[kenwong]

Hello,

Now only the WiFi led is working. Is it most possible that the inverter has gone bust? If so, how can I fix it? Would it be difficult?

Any help would be appreciated.