Toshiba A200 either freeze or won’t power on when plugged in with AC adapter. Works fine with just the battery. If laptop is running and you plug in the AC adapter the system will freeze. If the laptop is off and you try to power it on with the AC adapter plugged in the laptop will power on for like 3 seconds then shuts off.

Test the NEC/TOKIN cap under the CPU. (common issue for Toshiba)
Resolder the Maxim IC chip near the VGA out area.