Acer PD115 PD115 Service Guide - Page 37
Replace Main, Main Board - user manual
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Fail to light up No Volume Check LED indication OK Look up user NG manual ,and follow indica- tive action Check Lamp NG Replace Lamp Check Top cover's cable NG Replace cable or connect the cable back OK Check Speaker Connector NG Speaker Connector Become loose OK Check Thermal Sensor NG Replace Ther- mal Sensor OK Check Speaker NG Replace Speaker OK OK Check Fan NG Replace Fan OK Check Main Board NG Replace Main Board Check Main Board OK Replace Main OK Check Ballast NG Replace Ballast Chapter 4 32