Acer AL532 AL532 Monitor Service Guide - Page 15
Check the main, board, Check, F1,D5, 5.0 V ?, U9,U11,R43, H/V input, Signal ?, Change, H/V Signal,
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Page 15 highlights
Step 2 Check the main NO board 12V ? Check F1,D5 YES NO +5.0 V ? YES Check the main YES board U5 / Pin 3 ? YES Check U9,U11,R43 Check U5 H/V input Signal ? YES Change U8 NO Check H/V Signal Display ? YES OK ! NO Change Signal Cable