My tablet is not pluging in

Toshiba computers have a label on the bottom that displays the exact voltage and minimum amperage required to power the computer ("DC15V 3.0A", for example, which means 15 volts DC (direct current), at 3.0 amps. Each Toshiba AC adapter has a label indicating its output voltage and amperage capacity (for example, "DC15V 3.0A"). Important considerations for using AC adapters with portable computers:
The connectors must be compatible -- they must mate together correctly.
The voltage level must match exactly (a computer designed to run from 15 volts can be powered only by an adapter rated to produce 15 volts). If the AC adapter's voltage is higher than the computer's requirement, the computer and the battery may be damaged, If the AC adapter's voltage is lower, the computer may not operate correctly, or not operate at all.
The AC adapter must supply at least enough amperage (current) to meet the computer's amperage requirement. Otherwise, the computer may not run properly, the battery may not charge correctly, or may charge very slowly.
The quality of the power (ripple, noise and other factors) provided by the AC adapter must be very high. AC adapters from other manufacturers may supply sufficient amperage at the correct voltage level but the quality of the power may be poor, which can cause the computer to operate erratically, and could even cause damage to the computer. Whenever possible, use the correct Toshiba AC adapter for your computer.
The computer's power light may blink to indicate that there's a problem with the power from the AC adapter.