Acer T230H Acer T230H LCD Monitor Service Guide - Page 39

TROUBLE SHOOTING 1. No Power Chapter 4 No Power Change Power NO Board No Check Short Of Main Board NO Change U1,Q7,Q8,Q9, Q13 NO Change Y1 NO Change U3 Change U3 RU Software ISP Check Bottom Board Check CN1 +5V Yes Check U1=3.3V Q7,Q8,Q9,Q13= 1.8V==1.8V Yes Check Y1=24MHz Yes Check U3 Pin 15,16 Clock Yes Check U3 Pin 24 level NO Change U3