Check me please: Dead...no start, no response, other than charge light

Hi there,

I suspect I know the answer, but I’d really appreciate “a second set of eyes” on my problem.

15” Macbook Pro 2.4, Late 2008 (Unibody)…does not start.

• using the correct 85w power supply, tested working

• battery is only 6 months old

• tried resetting the SMC several times

• tried starting with and without the battery.

• tried the “rm batt while magsafe connected, rm magsafe,hold start 15s+, plug magsafe, plug battery” method

• tried with and without ram

• tried starting using the power pads on the logic board

• with the battery connected, the charger shows an orange (charging) light

• with the battery disconnected the charger shows a green (power) light

But otherwise, no response whatsoever.

Is there anything that could be causing the problem other than a faulty logic board?

Thanks much!