Acer AC711 AC711 Monitor Service Guide - Page 2

1. DISPLAY ALIGNMENT A. TIMING & DISPLAY SIZE For all presetting mode shall be within the limitation: H. WIDTH 310 ± 5mm V. HEIGHT 232 ± 3 mm The external control range of the data area, shall be as follows; Max. horizontal size : full the screen Max. vertical size : full the screen B. PICTURE POSITION For all presetting mode shall be within the limitation: H.PHASE SCREEN CENTER ± 4 mm V.CENTER SCREEN CENTER ± 3 mm C. LINEARITY The linearity of an image displayed on the CRT must meet the following requirements, with reference to figure 4.05 for both X and Y and axis. The measured value of linearity shall be less than 6%(p) or 8%(s) when calculated using all lattices and shall be less than 5%(p) or 6%(s) when calculated using adjcent lattices. Xmax-Xmin OR Xmax+Xmin Ymax-Ymin Ymax+Ymin Where: Xmax,Xmin,be Calculated Same Line Ymax,Ymin,be Calculated Same Row D. ALIGNMENT PROCEDURE • Warm up the monitor for at least 30 minutes before adjustment. • Set the front of CRT to the east. • Turn all VR set to center position. D-1. H.V 1. Use front control key adjust the display size about 300mm, adjust VR801 Let the Plus of C824 is 28.14V in Timing 68kmode FULL WHITE PATTERN, it can be got a stable H.V. 2