Power supply is original and OK
When i plug charger into laptop, the charger LED goes out and laptop will not start
Battery is flat
Same result when i try with battery out of laptop as in
I am not pressing power button
There is no charge status LED on laptop
I tried removing power supply, taking battery out, turning laptop upside down, pressing power button for 45 seconds to release latent charge/static, putting power supply back in without battery.
Charger works on other laptop
Is this a short? How do I test to component level for the short?