Acer B223PWL Acer B223PWL and V223PWL Monitor Service Guide - Page 42

3. DIM 40 DIM (image overlap, focus or flicker) Reset in factory mode NG Set to the optimal frequency, select the recommended frequency NG Readjust the phase and pixel clock in the user mode NG Pull out signal cable and check "Self Test Feature Check" is ok? NG Replace the main board NG Replace the panel OK OK The end OK The end OK The end OK Check the signal cable and the PC NG OK The end