Acer P5270 Acer P5270 Projector Series Service Guide - Page 70

4-5 Inspection Procedure No Step 1 Frequency and Tracking Specification Eliminate visual wavy noise by Rsync, Frequency or Tracking selection. Procedure - Test Signal : 1024x768@60Hz - Test Pattern : General-1 - check and see if image sharpness and focus are well-performed. - If not, re-adjust by the following steps: (1) Select "Frequency" function to adjust the total pixel number of pixel clock in one line period. (2) Then, select "Tracking" function and use right or left arrow key to adjust the vgalue to minimize video flicker. 2 Boundary Horz. And Vert. - Test Signal : position of 1024x768@60Hz video should be - Test Pattern : General adjustable to - Adjust Resync or be the screen Frequency / Tracking / frame. H. Position / V. Position to the inner of the screen. Photo Confidential 4-4 P5270/P5270 Refresh