AL2023W Service Guide
Page 1
Acer AL2023W Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/ 100% Recycled Paper - 1 -
Acer AL2023W Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/ 100% Recycled Paper - 1 -
AL2023W Service Guide
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Chapter 4 TROUBLE SHOOTING This chapter provides trouble shooting information for AL2023W 1. No Power No Power NO Change Power Board No Check Short Of Main Board NO Change Q3,D1,U1,D2 NO Change X1 NO Change U5 or U4 Change U5 RUN Software ISP Check Bottom Board Check CN1 +12V and +5V Yes Check D1=1.8V U1 out=3.3V Yes Check X1=24MHz Yes Check U5 Pin 42,43 Clock Yes Check U6 Pin 42,43 Clock NO Change U6 - 44 -
Chapter 4 TROUBLE SHOOTING This chapter provides trouble shooting information for AL2023W 1. No Power No Power NO Change Power Board No Check Short Of Main Board NO Change Q3,D1,U1,D2 NO Change X1 NO Change U5 or U4 Change U5 RUN Software ISP Check Bottom Board Check CN1 +12V and +5V Yes Check D1=1.8V U1 out=3.3V Yes Check X1=24MHz Yes Check U5 Pin 42,43 Clock Yes Check U6 Pin 42,43 Clock NO Change U6 - 44 -