also compare the output ratings to the old original adapter... that would give you an idea of the required output voltage.
according to this webpage:
http://www.uktsupport.co.uk/advent/laptop/7113.htm
Advent 7113 uses a LiteON PA-1700-02 AC power adapter. Doing a quick search, the specs for this adapter are:
INPUT: 100-240V~ 1.8A, 50-60Hz
OUTPUT: 19V 3.42A 65W
from this, it looks like your AC adapter is very far from the required. i suggest you consider getting the right AC adapter (
http://www.pchub.com/uph/laptop/46-2...r-Adapter.html)