MacBook 2008 A1185 won't turn on

I've had this computer since new; it always work reliably.

Then I decided to clean it with alcohol;

I probably went a little overboard with too much alcohol. I turned it on;

the screen at to top left corner show some alcohol streaking.

I shut down;

the next time when I pressed the on button, nothing happen;

also the green light on the charger connecter did not light.

I put another replaced the battery which was completely discharged fully charged battery & tried another charger; still nothing.

Any suggestions how to diagnose this problem?

Robert