Powerbook 3400c powerboard

[Papichulo]

My Powerbook 3400 i just bought does not want to stay on. I found out it is the powerboard under the trackpad that is bad and causing it to shutdown during startup. Is this capacitor related or something else? Thanks

 

[desertrout]

Possibly - only two electrolytic caps on it, so probably worth seeing if a cause. Also one more on the logic board.

 

[desertrout]

Also - the solder on the power connector is known to crack... something else to check

 

[Papichulo]

Good point i checked the solder and its fine it makes a small squealing noise during startup on the powerboard